CN100548817C - A kind of method of variable frequency control powder escape amount during vacuum nitrogen filling - Google Patents
A kind of method of variable frequency control powder escape amount during vacuum nitrogen filling Download PDFInfo
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- CN100548817C CN100548817C CNB2006100964924A CN200610096492A CN100548817C CN 100548817 C CN100548817 C CN 100548817C CN B2006100964924 A CNB2006100964924 A CN B2006100964924A CN 200610096492 A CN200610096492 A CN 200610096492A CN 100548817 C CN100548817 C CN 100548817C
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Abstract
A kind of method of variable frequency control powder escape amount during vacuum nitrogen filling, form by hardware such as vacuum pump group, the frequency converter that can control vaccum pump motor work, PLC controller and corresponding control programs, it is characterized in that: frequency converter frequency P4, P6, P25, P5, P26, P24 finish during for normal operation and vacuumize the frequency that action moves successively, when degree of vacuum be-during 30KPa～0, by panel frequency work is set ,-30KPa～-press the work of P4 frequency during 50KPa.-50KPa～-press the work of P6 frequency during 60KPa ,-60KPa～-press the work of P25 frequency during 70KPa ,-70KPa～-press the work of P5 frequency during 80KPa ,-80KPa～-press the P26 frequency during 90KPa to work ,-90KPa～-press the P24 frequency during 100KPa to work.Adopt the method for variable frequency control powder escape amount during vacuum nitrogen filling of the present invention, make the canned food of specification 900 grams, powder escape quantity has been reduced to several grams at zero point by the loss of every jar tens gram, and the work efficiency of complete machine is not produced any negative influence.
Description
Technical field
The present invention relates to negative-pressure vacuum package packing machine field, especially use a kind of method of variable frequency control powder escape amount during vacuum nitrogen filling.
Technical background
In negative-pressure vacuum filling, vacuum nitrogen filling seal package are produced, the vacuum nitrogen filling technology is the effective means that guarantees that keeping life prolongs, but the amount that the powdery type material that causes in this process of enforcement loses with air current flow is more, and the loss that the client is caused is bigger.How effectively to control the powder escape quantity in the vacuum nitrogen filling process? the mode of present more employing is to utilize the throttling action of vacuum pipe valve to control powder escape quantity, the shortcoming one of the method is that the structure design of valve is complicated, and easily to produce the action of valve malfunctioning because of dust is piled into piece, the 2nd, the throttling of whole tube chamber has hindered the flow area of runner, reduced the speed that vacuumizes, influence the running velocity of complete machine, reduced work efficiency.
Summary of the invention
The objective of the invention is to the complicated defective of the structure design that utilizes the vacuum pipe valve for solving present employing, provide a kind of frequency of operation to carry out effectively control to vacuum pump, reach and under different negative pressure conditions, carry out different frequency of operations, finally realize of effective control of whole vacuum nitrogen filling process to powder escape quantity.
The present invention is achieved by the following technical solutions: a kind of method of variable frequency control powder escape amount during vacuum nitrogen filling, form by hardware such as vacuum pump group, the frequency converter that can control vaccum pump motor work, PLC controller and corresponding control programs, it is characterized in that: frequency converter frequency P4, P6, P25, P5, P26, P24 finishes when being normal the operation and vacuumizes the frequency that action moves successively, when the vacuum pump work degree of vacuum be-during 30KPa～0, by panel frequency work is set ,-30KPa～-press the work of P4 frequency during 50KPa.-50KPa～-press the work of P6 frequency during 60KPa ,-60KPa～-press the work of P25 frequency during 70KPa ,-70KPa～-press the work of P5 frequency during 80KPa ,-80KPa～-press the P26 frequency during 90KPa to work ,-90KPa～-press the P24 frequency during 100KPa to work.
It is 28～32HZ that aforesaid frequency converter frequency is set to P4 respectively, and P6 is 30～35HZ, and P25 is 32～40HZ, and P5 is 35～45HZ, and P26 is 40～55HZ, and P24 is 40～60HZ.
Adopt the method for variable frequency control powder escape amount during vacuum nitrogen filling of the present invention, make the canned food of specification 900 grams, powder escape quantity has been reduced to several grams at zero point by the loss of every jar tens gram, and can not produce any negative influence to the work efficiency of complete machine.
Embodiment
A kind of method of variable frequency control powder escape amount during vacuum nitrogen filling, form by hardware such as vacuum pump group, the frequency converter that can control vaccum pump motor work, PLC controller and corresponding control programs, it is characterized in that frequency converter frequency P4, P6, P25, P5, P26, P24 finish during for normal operation and vacuumize the frequency that action moves successively, when degree of vacuum be-during 30KPa～0, by panel frequency work is set ,-30KPa～-press the work of P4 frequency during 50KPa.-50KPa～-press the work of P6 frequency during 60KPa ,-60KPa～-press the work of P25 frequency during 70KPa ,-70KPa～-press the work of P5 frequency during 80KPa ,-80KPa～-press the P26 frequency during 90KPa to work ,-90KPa～-press the P24 frequency during 100KPa to work.
Aforesaid P4 is 28～32HZ, and P6 is 30～35HZ, and P25 is 32～40HZ, and P5 is 35～45HZ, and P26 is 40～55HZ, and P24 is 40～60HZ.
Embodiment one: a kind of method of variable frequency control powder escape amount during vacuum nitrogen filling, by the vacuum pump group, can control the frequency converter of vaccum pump motor work, hardware and corresponding control programs compositions such as PLC controller, it is characterized in that frequency converter frequency P4, P6, P25, P5, P26, P24 finishes when being normal the operation and vacuumizes the frequency that action moves successively, in the whole process of vacuum nitrogen filling, the power of powder escape quantity and air-flow velocity and negative pressure has very big relation, it is lower to vacuumize the initial stage negative pressure, this moment, air-flow velocity was to the having the greatest impact of powder escape quantity, be evacuated down to certain pressure after, air-flow velocity reduces relatively to the influence of powder escape quantity, according to these characteristics, the frequency of operation of vacuum pump is carried out effectively control, reach at different negative pressure conditions and carry out different frequency of operations, finally realize of effective control of whole vacuum nitrogen filling process to powder escape quantity.
When degree of vacuum be-during 20KPa, frequency work is set by panel, press the work of 28HZ frequency during-30KPa, press the work of 30HZ frequency during-50KPa, press the work of 32HZ frequency during-60KPa, press the work of 35HZ frequency during-70KPa, press the work of 40HZ frequency during-80KPa, press the work of 40HZ frequency during-90KPa.
Aforesaid P4 is 28～32HZ, and P6 is 30～35HZ, and P25 is 32～40HZ, and P5 is 35～45HZ, and P26 is 40～55HZ, and P24 is 40～60HZ.
Embodiment two:
When degree of vacuum be-during 25KPa, frequency work is set by panel, press the work of 30HZ frequency during-35KPa, press the work of 32HZ frequency during-55KPa, press the work of 35HZ frequency during-65KPa, press the work of 40HZ frequency during-75KPa, press the work of 50HZ frequency during-85KPa, press the work of 50HZ frequency during-95KPa.
Embodiment three:
When degree of vacuum be-during 29KPa, frequency work is set by panel, press the work of 32HZ frequency during-48KPa, press the work of 35HZ frequency during-59KPa, press the work of 38HZ frequency during-68KPa, press the work of 45HZ frequency during-78KPa, press the work of 55HZ frequency during-89KPa, press the work of 60HZ frequency during-98KPa.
Claims (1)
1, a kind of method of variable frequency control powder escape amount during vacuum nitrogen filling, by vacuum pump, frequency converter, hardware and corresponding control programs compositions such as PLC controller, it is characterized in that: frequency converter frequency P4, P6, P25, P5, P26, P24 finishes when being normal the operation and vacuumizes the frequency that action moves successively, when degree of vacuum be-during 30KPa～0, by panel frequency work is set ,-30KPa～-be the work of 28～32HZ frequency during 50KPa by P4 ,-50KPa～-be the work of 30～35HZ frequency during 60KPa by P6,-60KPa～-be the work of 32～40HZ frequency during 70KPa by P25,-70KPa～-be the work of 35～45HZ frequency during 80KPa by P5 ,-80KPa～-be the work of 40～55HZ frequency during 90KPa by P26 ,-90KPa～-be the work of 40～60HZ frequency during 100KPa by P24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100964924A CN100548817C (en) | 2006-09-28 | 2006-09-28 | A kind of method of variable frequency control powder escape amount during vacuum nitrogen filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100964924A CN100548817C (en) | 2006-09-28 | 2006-09-28 | A kind of method of variable frequency control powder escape amount during vacuum nitrogen filling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1931670A CN1931670A (en) | 2007-03-21 |
| CN100548817C true CN100548817C (en) | 2009-10-14 |
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| CNB2006100964924A Active CN100548817C (en) | 2006-09-28 | 2006-09-28 | A kind of method of variable frequency control powder escape amount during vacuum nitrogen filling |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yashili Group Co Ltd, Guangdong Assignor: Danyang Jinyi Packing Equipment Co., Ltd. Contract record no.: 2010440001549 Denomination of invention: Variable-frequency method for controlling powder escape amount during vacuum nitrogen filling Granted publication date: 20091014 License type: Exclusive License Open date: 20070321 Record date: 20101229 |
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| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU JOYEA PACKAGING TECHNOLOGY CO., LTD. Free format text: FORMER NAME: DANYANG JINYI PACKING EQUIPMENT CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: The flowers Park of Danyang city in Jiangsu province 212310 Dangui Road Development Zone No. 3 Patentee after: Jiangsu Joyea Packing Technology Co., Ltd. Address before: The flowers Park of Danyang city in Jiangsu province 212310 Dangui Road Development Zone No. 3 Patentee before: Danyang Jinyi Packing Equipment Co., Ltd. |