CN1500562A

CN1500562A - Method, device and cartridge for dispensing a fluid

Info

Publication number: CN1500562A
Application number: CNA200310103851A
Authority: CN
Inventors: E・林吉尔; E·林吉尔
Original assignee: Nordson Corp
Current assignee: Nordson Corp
Priority date: 2002-11-15
Filing date: 2003-11-12
Publication date: 2004-06-02
Also published as: DE10253625A1; EP1419826A3; EP1419826A2; US20050051312A1; JP2004167484A

Abstract

A method and device for delivering a fluid, in which the fluid is fed from a fluid source of a fluid-delivery device and delivered through a discharge orifice assigned to the delivery device. Before the fluid is delivered through the discharge orifice, it is heated or cooled by flowing through a heat-transfer chamber, which contains a fluid-permeable structure having a large number of communicating cavities through which the fluid flows.

Description

The method and apparatus of dispensing fluid and cartridge heater

Technical field

The present invention relates to the method for dispensing fluid, wherein fluid provides from the fluid source of dispensing fluid device, and is distributed through the floss hole that is connected with this dispensing device.

The present invention relates to have the fluid dispensing apparatus of fluid passage, wherein passage is communicated with fluid source, and is opened on the floss hole of dispensing fluid.

Background technology

In many commercial Application, assisting down of fluid dispensing apparatus, stream material (fluid) is distributed and deposits or is coated on the pedestal.This flowing material for example can be adhesive, pigment or encapsulant, and pedestal can be personal-care supplies, plastic plate, furniture, mechanical part etc.According to the application scenario, for example, this flowing material can bead, the form of bar or film is distributed, and is perhaps acting on down auxiliary that gas on the fluid sprays, and material can be ejected.Fluid dispensing apparatus is connected on the fluid source, for example is connected to the adhesive storage tank, and fluid is fed to floss hole through so-called control valve by means of pump, and this floss hole for example is circle or notch shape.

In some applications, before being distributed, preferably heats fluid this fluid.In course of injection, preferably heat acting on the gas of wanting on the dispensing fluid.For this reason, what known is, the pedestal of dispensing device can be by electrical heating, thereby the flow through liquid that is formed on the fluid passage on the pedestal or gas are by being heated by convection heat transfer' heat-transfer by convection at the inwall that defines the fluid passage.For heated air in fluid dispensing apparatus, what also known is to form Z-shaped gas flow channel.The purpose of Z-shaped design is the stream lengthening that makes heat transfer, and improves heat transfer property in this way.Yet such shortcoming is to need to form pretty troublesome and so and the costliness of design of this type stream.

Summary of the invention

The objective of the invention is to develop the method and apparatus and the cartridge heater of the above-mentioned type, utilize these method and apparatus can improve heat transfer property.

The present invention reaches the purpose of said method in following mode, promptly before fluid is through the floss hole distribution, this fluid is heated or cooled by the heat transfer chamber of flowing through, but wherein heat transfer chamber is held the permeate fluid structure that has a large amount of through holes, thereby fluid passes through this structure and flow circuit.

In addition, the present invention heats by convection cell or the heat transfer chamber cooled off reaches the purpose of said apparatus, but wherein heat transfer chamber is held the permeate fluid structure that has a large amount of through holes.

The advantage of method and apparatus of the present invention is, but by the permeate fluid structure of fluid flow circuit of the present invention is provided, before the dispensing device dispensing fluid, liquid and/or gas heating or the heat transfer property that selectively cools off improved significantly.But the permeate fluid structure is preferably agglomerated material, sintering metal particularly, and this structure roughly has stiffness, has the vestibule that is interconnected in a large number simultaneously, can flow through these vestibule fluids.But owing in the fluid passage of heat transfer chamber, be provided with the permeate fluid structure, thus utilize the surface area between this structure and the fluid that maybe may cool off to be heated to be multiplied, can improve heat transfer property, and this surface area is extremely important for conducting heat.This structure is heated by the parts of describing in detail below, thereby heat is delivered on the fluid on the large surface area of this structure.In addition, when fluid is flowed through this structure, repeat deflection, can produce the eddy current of some like this, cause the raising of heat transfer property thereupon by making this fluid.According to the present invention, heat transfer property, the performance of convection cell or gas heating is just improved significantly, the result, but handle assembly is made into relative compact.Particularly, compare, but the flow resistance of the increase that is produced by the permeate fluid structure is ignored with flowing freely passage when being used to spray compressed air as the dispensing device of the liquid of hotmelt and heating.Be that this material has a large amount of interior heating surfaces, and dimensionally stable, but also makes easily and process, and therefore can be suitable for special-purpose as the advantage that preferred material has sintering metal.Yet, alternatively, according to the present invention, can also adopt other perforates, preferably roughly have the structure of stiffness, as fabric, metal braid or cellularpiston firm, perforate.

Preferably, when fluid is flowed through heat transfer chamber, but this fluid can be heated or cooled and side by side be filtered by the permeate fluid structure, thereby except being heated, gas or liquid also have been cleaned.

In order heat to be sent to fluid or to remove heat from fluid, but the permeate fluid structure preferably contacts with the heat transfer chamber inner surface.In this way, can carry out effectively heat transmission.

Fluid preferably is a liquid, particularly as the fluid plastic of hotmelt, makes the fluid heating by the heat transfer chamber of flowing through.Equally, preferably, fluid is the gas as air, makes this fluid heating by the heat transfer chamber of flowing through, and gas is more excellent spraying occasion.

By heat transfer chamber being formed the simple designs remodeling of a fluid passage part, device of the present invention is improved, but wherein the permeate fluid structure is inserted in the fluid passage.In this way, but by permeate fluid structure of the present invention is inserted, just can improve at the heat transfer property that is formed at the fluid passage on dispensing device housing or the pedestal with plain mode.

But for the permeate fluid structure, preferably be designed to be roughly cylinder, this cylinder is inserted in and is roughly in the cylinder hole, makes and installs and the replacing of permeate fluid structure is simplified but can make like this.

Additional advantage is, but the permeate fluid structure is machine glazed finish sintering metal parts, preferably turning sintering metal parts.Carry out machine glazed finish by the surface to the sintering metal parts, as turning, can further improve the heat transfer between sintering metal parts and heat transfer chamber, wherein the surface of this sintering metal contacts with heat transfer chamber.The result of turning makes outside bore portion ground sealing, formed bigger contact area simultaneously, and the internal structure of fluid flow warp does not have negative effect.

Preferably, heat transfer chamber is formed in the metal shell, and this housing holds the heating element heater to the housing heating simultaneously.

Preferably, but the permeate fluid structure is designed to be inserted into the part of the cartridge heater in the device.This cartridge heater is removably mounted in the device, and fluid is flowed through wherein simultaneously.So just make exchange rapidly with easy.Cartridge heater preferably has at least one heating element heater.

According to selecting embodiment, the device that provides has pedestal, and one or more heat transfer chamber wherein are installed in this pedestal, is provided with one or more dispensing assemblies (applicationmodules) simultaneously, these assemblies are installed on the pedestal, and have the floss hole of dispensing fluid.If desired be, but several heat transfer chamber serial or parallel connection.These heat transfer chamber preferably are installed in the independently shell area that can be connected with each other.

Define preferred in addition remodeling in the dependent claims.

Description of drawings

Embodiment shown in reference to the accompanying drawings describes the present invention below.

Fig. 1 is the side view of liquid dispensing apparatus of the present invention.

Fig. 2 is in the not view of ipsilateral for device among Fig. 1.

The part sectioned view of Fig. 3 for installing among Fig. 1.

Fig. 4 shows the selected embodiment that is used for several heat transfer chamber that Fig. 1 installs.

Fig. 5 shows the selected embodiment of fluid dispensing apparatus, and wherein fluid can heat according to the present invention.

Fig. 6 is the perspective view of cylinder sintering metal parts.

Fig. 7 is the cartridge heater perspective view that is used for liquid dispensing apparatus.

Fig. 8 is the perspective view of the selected embodiment of cartridge heater.

Fig. 9 shows another selected embodiment of cartridge heater.

The specific embodiment

Device among Fig. 1-3 is also referred to as applicator head or liquid dispensing apparatus, be used for as similar liquids such as adhesive, hotmelt, cold glue, sealant distribute or be applied to various pedestals.Install 1 and comprise metal base 2 and four distributions or

discharge assembly

4,6,8,10, each assembly is screwed on the pedestal 2, and liquid flows out through at least one floss hole 12 from this assembly.The dispensing assembly 4-10 also can provide Compressed Gas, and Compressed Gas appears at the zone of floss hole 12 through the Compressed Gas nozzle, and acts on the fluid, so that liquid sprays or swirls.In the direction shown in the arrow 14, the pedestal that apply is transmitted by conveyer through device 1 below floss hole, and this conveyer is not shown among the figure.Device 1 can be installed on the supporting construction by the trip bolt 16 that is fastened on the pedestal 2.

Flexible pipe Connection Block 18 is used for handle assembly 1 and is connected with fluid source, and this fluid source for example is the adhesive storage tank (not shown) of liquid adhesive.By the mode of having known, adhesive is transmitted through the runner that is made of several segments, and flows through pedestal 2 and enter into dispensing assembly 4-10, up to entering into floss hole 12.The adhesive flow road has first hole 20 (only being illustrated by dotted line), cross direction profiles passage 22, inclined hole 24 and additional channel.Wherein inclined hole 24 is communicated with and leads to each assembly 4-10 with cross direction profiles passage 22, and additional channel is formed on the inside of dispensing assembly 4-10, and opening advances floss hole 12.

For the adhesive flow of installing in 1 is selected to begin and stop, each assembly 4-10 has a valve system (not being shown specifically), this valve system has valve body, and this valve body can move to the closed position from open position under gas pressure, and interacts with valve seat.This valve system is operated by automatically controlled magnetic valve 26, the control air pipe line 28 that is connected with magnetic valve and the Compressed Gas passages that are formed in the pedestal 2, wherein the Compressed Gas passage is represented by dotted line 30,32, is used for Compressed Gas is incorporated into dispensing assembly 4-10.

Air Connection Block 34 is installed on the pedestal 2 so that gas to be provided, and for example is Compressed Gas in the present embodiment.Compressed Gas passes through several Compressed Gas passages and flows, and these passages are used to make the liquid that passes through floss hole 12 and distribute to spray or swirl, and will describe these passages in more detail below.

In order to make the preferably gas jet heating of air, several

heat transfer chamber

36,38,40,42,44,46 are formed on the inside of pedestal 2.Gas flows in direction shown in the arrow through heat transfer chamber.In the present embodiment, 36,38 and four additional, in parallel heat transfer chamber 40-46 of preheating heat transfer chamber of two series connection are arranged, dispensing assembly 4-10 is distributed in each chamber.Yet, alternatively,, the heat transfer chamber of the serial or parallel connection of varying number can be arranged, perhaps even have only a heat transfer chamber according to concrete application scenario.Heat transfer chamber 36-46 is parallel to each other to be arranged in the plane of pedestal upper area.Shown in Fig. 2 and 3, pedestal 2 is made of several housing sections, and is secured to one another these sections by screw attachment.Each housing section is fixed at least one heat transfer chamber, and one of is used for installing among the dispensing assembly 4-10.

But the permeate fluid structure that has a large amount of intercommunicating pores is arranged in each heat transfer chamber.Among the embodiment shown here, this structure is formed by cylinder sintering metal parts 48.But being mainly used in to improve, the heat transfer chamber that has the permeate fluid structure that is arranged in wherein conducts heat, in the present embodiment promptly, and the degree of heat of the gas of permeate fluid structure but raising is flowed through.The sintering metal parts are rigidity basically, for example can make for bell metal.Yet alternatively, but the permeate fluid structure also can or have perforate by metallic fiber (fabric), woven metal piece (braid), hard honeycombed plastic is made, and through this this material, gas or liquid can flow into.

Sintering metal parts 48 are cylindrical, and these parts embed and are inserted in the circular hole 50 of pedestal 2.At length explain heating or heat radiation below.Each hole 50 perhaps forms with through-hole form on housing parts on pedestal more precisely.Sintering metal parts 48 can be from the hole 50 arrival end 52 insert, this arrival end is easy to identification in Fig. 3.The opposite end 54 in arrival end 52 and hole 50 is provided with internal thread, simultaneously under mode of operation, can screw in stopper and reaches airtight, and this mode does not illustrate in the drawings.Gases of introducing through inlet seat 34 heat transfer chamber 36 of flowing through enters into heat transfer chamber 38 through transverse holes 56 then, then enters into heat transfer chamber 40 through transverse holes 58, enters into dispensing assembly 4 at last.The gas other

transverse holes

60,62,64 that also continues to flow through enters into corresponding

heat transfer chamber

42,44,46, and then enters into

corresponding dispensing assembly

6,8,10.In order to change sintering metal parts 48, can utilize instrument, remove the stopper that is screwed into arrival end 52, take out the sintering metal parts simultaneously.Instrument can insert through opposite end 54, to extract sintering metal parts 48.

But for to heat transfer chamber 36-46 and permeate fluid structure (sintering metal parts 48) heat supply, resistance heater is installed in pedestal 2 inside, that is to say, is installed in

several heaters hole

58,60 shown in Figure 1.In the mode that does not illustrate in the drawings, columniform resistance heater is inserted in the

hole

58,60, and provides electric current, and this electric current arrives

hole

58,60 through connector 62.This resistance heater has constituted the heating element heater that is used for heating base 2.Heat energy passes through pedestal 2 by the heat conduction and is transmitted, thereby but single heat transfer chamber 36-46 and insertion permeate fluid structure wherein can be heated to sufficient temp, but this temperature is enough to make the gas of thermal energy transfer to the permeate fluid structure of flowing through, and this gas is heated simultaneously.Because the surface area that can be used for conducting heat increases, the gas deflection of this structure circulation of process is simultaneously also stirred, and has so just produced a certain amount of vortex, promotes subsequently to conduct heat, but therefore passes through the permeate fluid structure, has improved heat transfer significantly.In the mode that does not illustrate in the drawings, substitute heating element heater, can adopt cold-producing medium to come pedestal 2 is cooled off, thereby but the temperature of reduction heat transfer chamber 36-46 and permeate fluid structure, for example, by gas or liquid refrigerant such as cooling are incorporated in the

hole

58,60.

Fig. 4 is the profile of the selected embodiment of device 1, this device have with reference to the substantially the same design of the device 1 of Fig. 1-3 description.Explain difference below with the device of describing with reference to Fig. 1-3 1.In addition, describe above and can be used for this fully and can select embodiment.Pedestal 2 shown in Fig. 4 accommodates three dispensing assemblies, and this assembly is not shown in the drawings.Three

heat transfer chamber

42,44,46 are distributed to these assemblies, and heat transfer chamber is to install with the same manner shown in Fig. 3 simultaneously.The

heat transfer chamber

36,38 of series connection is formed in the housing parts 64 in Fig. 4 left side.But the permeate fluid structure that exists with sintering metal parts 50 forms is inserted in the circular hole 48 equally.The inlet porting end 52 for this reason, and this arrival end is not illustrated this stopper by plug seal among the figure.Gas to be heated is introduced through inlet 66.This gas flows to the single heat transfer chamber 42-46 that is connected the transverse holes port of export through

transverse holes

56,58,60 and 62 then.

Fig. 5 shows the selected embodiment of fluid dispensing apparatus of the present invention, but wherein as the fluid of hotmelt by means of heat transfer chamber 68 be formed on the permeate fluid structure in this heat transfer chamber and be heated or cool off.As top described in detail, but the permeate fluid structure is preferably designed as the form of cylinder sintering metal parts 70, these parts are inserted in the circular hole 72 that is formed in the pedestal 2, thus the contact between the inner surface in sintering metal 70 and hole 72.Equally as explain with reference to first embodiment front, wherein the description of this first embodiment is used in herein fully, pedestal 2 can be by the preferably heating element heater heating of electrical heating elements, perhaps cool off by cold-producing medium in the mode that does not illustrate among Fig. 5, thereby adhesive is in the direction of arrow 74, pass heat transfer chamber 68 and be passed in the hole 76 that heat transfer chamber exports from the fluid source that connects by Connection Block 18, flow at least one dispensing assembly 4, wherein this assembly 4 has the floss hole 12 of dispensing fluid, at this moment, assisting down of sintering metal parts 70, but the adhesive of the permeate fluid structure of flowing through is heated or cooled in heat transfer chamber 68.

But Fig. 6 shows the permeate fluid structure of sintering metal component form of the present invention, and these parts can be inserted in the fluid passage for the treatment of the liquid distributed by dispensing device 1 or gas, and is used for conducting heat, and is preferably used in heating.This liquid or gas can be filtered simultaneously.Sintering metal parts 48 are after being sintered, can preferably make its outer cylinder surface machine glazed finish by turning, thereby the hole that is positioned on the periphery can partly be sealed by being out of shape, and the surface that has caused like this contacting with the hole inwall increases, and wherein sintering metal parts 48 are inserted in this hole.Further improved heat transfer property in this way.Alternatively, in the mode that does not illustrate in the drawings, also can follow a ground to one of several divided portion of sintering metal parts and be placed in the heat transfer chamber with embarking on journey.

Fig. 7 shows cartridge heater 70 of the present invention, and this cartridge heater is used for being inserted into fluid dispensing apparatus 1, describes in the device of type above for example being inserted into.For example, adopt stopper, bayonet socket, screwed union etc., this cartridge heater 70 is removably mounted among the heat transfer chamber 36-46.Cartridge heater 70 has the external heat element 72 of hollow cylinder form.This heating element heater 72 has a large amount of electric conductor (not shown)s, and when these conductors of electric current process, conductor is heatable.Provide the electrical connector (not shown) for this reason.But the present invention's permeate fluid structure of cylinder 74 forms is formed on heating element heater 72 inside, but wherein the permeate fluid structure is preferably and is embedded in hollow cylinder begins to speak.When inserting cartridge heater 70, for example be the fluid to be heated of hotmelt, but perhaps for example be compressed-air actuated gas to be heated, thereby heat with the above-mentioned mode permeate fluid structure of cylinder 74 of flowing through.

The selected embodiment of the cartridge heater of the present invention 71 shown in Fig. 8 is with cartridge heater 70 differences of describing with reference to Fig. 7, heating element heater is not provided, on the contrary, provide the housing of sleeve pipe 73 forms, but this sleeve pipe has held the permeate fluid structure that is designed to the sintering metal parts.This sleeve pipe is for example made by the material of aluminium or other hot good conductors.On near near this sleeve pipe outer cylinder surface sleeve pipe 73 ends, form two grooves 76, in this groove, for example the sealing ring of O shape ring inserts in the mode that does not illustrate in scheming, with with pedestal 2 in heat transfer chamber on the hole form sealing, thereby but fluid to be heated flow through in the mode of good qualification and be designed in the permeate fluid structure of sintering metal parts 74 forms.

But the cartridge heater selected shown in Fig. 9 has the electrical heating elements 80 at the center of being installed in and with the permeate fluid structure of sintering metal component form, wherein these sintering metal parts are designed to the form of hollow cylinder 82, at this cylinder bore, closely be inlaid with heating element heater 80.Such as previously explained, cartridge heater 78 is arranged in and removably is fastened on the pedestal of fluid dispensing apparatus 1 equally, fluid sintering metal parts 80 of flowing through simultaneously, thus obtain heating.

Among the embodiment shown in Figure 5, hotmelt is heated in heat transfer chamber 68, and is sent in the dispensing assembly 4.

Be the mode of operation of the inventive method below:

As Figure 1-3, fluid is flowed through Connection Block 18 and is entered into pedestal 2 and assembly 4-10, then by floss hole 12 distributions.Flow through Connection Block 34 and entering in the pedestal 2 of gas then, according to the present invention, can utilize the cartridge heater of Fig. 6-9 shown type, and heat transfer chamber 36-46 is heated by flowing through.Therefore,, but inwall and the permeate fluid structure of heat transfer chamber 36-46 heated, perhaps, under the situation of cooling, cool off by cold-producing medium by heating element heater.Heating or the gas that is cooled continue the pedestal 2 of flowing through then, and enter into dispensing assembly 4-10, then under heated condition, so that atomizing, stir mode such as swirl and act on the liquid to be distributed.

Claims

1. the method for dispensing fluid, wherein fluid provides and is distributed by the floss hole of distributing to dispensing device (1) (12) from the fluid source of fluid dispensing apparatus (1), it is characterized in that, before fluid is through floss hole (12) distribution, by the heat transfer chamber of flowing through (36-46), fluid can be heated or cooled, but wherein heat transfer chamber is equipped with the permeate fluid structure, this structure has a large amount of through holes, and fluid flows through these through holes.

2. method according to claim 1 is characterized in that, but the permeate fluid structure roughly has stiffness, and is made by agglomerated material, sintering metal, braided material, metal fabric or cellularpiston.

3. method according to claim 1 and 2 is characterized in that, when fluid was flowed through heat transfer chamber (36-46), this fluid was heated or cooled, but is filtered by the permeate fluid structure simultaneously.

4. any one described method in requiring according to aforesaid right is characterized in that, the inner surface of heat transfer chamber (36-46) is reached than the higher or lower temperature of fluid that flows into, but the permeate fluid structure contacts simultaneously with the inner surface of heat transfer chamber (36-46).

5. one or multinomial described method in requiring according to aforesaid right is characterized in that, the flow through heat transfer chamber (36-46) of several serial or parallel connections of fluid is so that fluid is heated or cooled.

6. any one described method in requiring according to aforesaid right is characterized in that fluid is a liquid, particularly as the fluid plastic of hotmelt, makes this fluid heating by the heat transfer chamber of flowing through (36-46).

7. any one described method in requiring according to aforesaid right is characterized in that fluid is a gas, is preferably air, makes this fluid heating by the heat transfer chamber of flowing through (36-46).

8. the device of dispensing fluid, this device has and can be communicated with fluid source and opening enters to be used for the fluid passage of the floss hole (12) of dispensing fluid, it is characterized in that, the heating or the heat transfer chamber (36-46) of cooling fluid but the permeate fluid structure is housed, this structure has a large amount of through holes.

9. device according to claim 8 is characterized in that, but the permeate fluid structure is made by cellular material agglomerated material, sintering metal, braided material, metal braid or opening, that roughly have a stiffness.

10. device according to claim 9 is characterized in that, heat transfer chamber (36-46) is formed by the part of fluid passage, but the permeate fluid structure is inserted in this passage.

11. device according to claim 10 is characterized in that, but the permeate fluid structure is designed to be roughly cylinder, this cylinder is inserted in roughly the cylindrical hole (50).

12. device according to claim 11 is characterized in that, but the permeate fluid structure is machine glazed finish sintering metal parts, is preferably the sintering metal parts of turning.

13. according to any one described device in the aforesaid right requirement, it is characterized in that heat transfer chamber (36-46) is formed in the housing (2) that is made of metal, housing (2) accommodates the heating element heater that is used for heated shell (2) simultaneously.

14., it is characterized in that, but the permeate fluid structure contacts and is embedded in this hole with the inwall of hole (50) according to any one described device in the aforesaid right requirement.

15., it is characterized in that, but the permeate fluid structure is designed to cartridge heater (70 according to above-mentioned one or the described device of omnibus claims, 78) a part, this cartridge heater can be inserted in the device (1), is removably mounted in the device, and fluid this cartridge heater of flowing through.

16. device according to claim 15 is characterized in that, cartridge heater (70,78) has at least one heating element heater (80).

17. device according to claim 16 is characterized in that, heating element heater (80) centrally is installed in the cartridge heater (78), but while permeate fluid structure is round this heating element heater (80).

18. device according to claim 17 is characterized in that, heating element heater (80) is designed to be roughly cylinder, but while permeate fluid structure is designed to the hollow cylinder round this cylinder.

19., it is characterized in that heating element heater (72) is designed to be roughly hollow cylinder according to claim 17 and 18 described devices, but the permeate fluid structure is installed in the hollow cylinder simultaneously.

20. according to any one described device in the aforesaid right requirement, it is characterized in that, has pedestal (2), one or more heat transfer chamber (36-46) are installed in this pedestal, are provided with one or more dispensing assemblies (4,6 simultaneously, 8,10), these assemblies are installed on the pedestal (2), and have the floss hole (12) that is used for dispensing fluid.

21. any one described device in requiring according to aforesaid right is characterized in that, but the heat transfer chamber (36-46) that accommodates the permeate fluid structure is communicated with the liquid flow path that installs (1).

22. any one described device in requiring according to aforesaid right is characterized in that, but the heat transfer chamber (36-46) that accommodates the permeate fluid structure is communicated with the gas flow channel that installs (1).

23. any one described device in requiring according to aforesaid right is characterized in that, fluid is flowed through the heat transfer chamber (36-46) of several serial or parallel connections to be heated.

24., it is characterized in that several housing parts that accommodate heat transfer chamber (36-46) are connected with each other, several heat transfer chamber (36-46) thereby fluid is flowed through continuously or simultaneously according to one or multinomial described device in the aforesaid right requirement.

25. one or multinomial described device in requiring according to aforesaid right is characterized in that, but at least one has the heat transfer chamber (36-46) of permeate fluid structure and distributes to each dispensing assembly (4-10).

26., it is characterized in that, but the hole (50) that the permeate fluid structure is inserted is by plug seal according to one or multinomial described device in the aforesaid right requirement.

But 27. being used to have the cartridge heater (70,78) of the fluid dispensing apparatus of permeate fluid structure, this cartridge heater plays heat transfer effect.

28. the cartridge heater according to claim 27 is characterized in that, cartridge heater (70,71) preferably has hollow cylinder housing (72,73), but this housing accommodates the permeate fluid structure.

29. according to any one described cartridge heater in the aforesaid right requirement, it is characterized in that, but the permeate fluid structure is a sintered component, is preferably sintering metal parts (74).

30. any one described cartridge heater in requiring according to aforesaid right is characterized in that, this cartridge heater is according to designing one of at least in the claim 16 to 18.

31. the heat transfer unit (HTU) of fluid dispensing apparatus has housing (2) and is formed on circulation passage in this housing, fluid is characterized in that through this passage, be used to heat or the heat transfer chamber (36-46) of cooling fluid but hold the permeate fluid structure that has a large amount of through holes.

32. heat transfer unit (HTU) according to claim 31 is characterized in that, but the permeate fluid structure is made up of cellularpiston agglomerated material, sintering metal (50), braided material, metal fabric or opening, that roughly have a stiffness.

33. heat transfer unit (HTU) according to claim 31 is characterized in that, heat transfer chamber (36-46) is formed on the inside of housing (2).