CN104609583A - System and method for separating and extracting dissolved gas from environmental water - Google Patents
System and method for separating and extracting dissolved gas from environmental water Download PDFInfo
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- CN104609583A CN104609583A CN201510051417.5A CN201510051417A CN104609583A CN 104609583 A CN104609583 A CN 104609583A CN 201510051417 A CN201510051417 A CN 201510051417A CN 104609583 A CN104609583 A CN 104609583A
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Abstract
The invention discloses a system and method for separating and extracting dissolved gas from environmental water. The system is characterized by comprising a water-quality treatment device, a membrane degassing device, a vacuum collection device and a flow control device. The treatment method is characterized by comprising the following steps of firstly removing impurity particles in the environmental water by virtue of the water-quality treatment device, degassing the dissolved gas in the environmental water by virtue of the membrane degassing device and further discharging degassed environmental water; and finally further pumping and collecting the dissolved gas generated in the membrane degassing device into an gas cylinder by virtue of the vacuum collection device. The system disclosed by the invention has the characteristics of low cost, simple operation, high degassing efficiency, convenient carrying and maintenance, low weight, small size and the like, can be carried by single people and has almost no any application limitation on the extreme field environment so that the system is very suitable for extracting dissolved gas from the environmental water.
Description
Technical field
The present invention relates to Vacuum System Design, system flow controls and solution gas extractive technique field, particularly relate to a kind of system and method utilizing film devolatilization vacuum collection technique separation and Extraction solution gas from ambient water.
Background technology
By radioactivity noble gas isotope in measurement environment water (as underground water, surface water, ocean water or moral purity dissolved water etc.) (as
39ar and
81kr,
85kr) content, in conjunction with the isotopic transformation period, can obtain the age of ambient water.Present stage, the sample that this age measures is generally purer gaseous sample.Therefore conveniently measure, first need environment gas dissolved water that rapidly and efficiently contamination-freely separation and Extraction is out.
Because the meltage of gas in ambient water is generally 10-30mL/L, need the atmospheric pollution avoiding a small amount of even minute quantity in application, especially extracted solution gas total amount is when decaliter level.In addition, in ambient water, the extraction experiment of solution gas mainly occurs in field extreme conditions such as () such as desert, basin, oceans, and this proposes high requirement to system portable, ease for operation.At present, main in the world what adopt is solution gas in degassed compression collection technique extraction environment water, and normally used method comprises two kinds: one is the degassed compression collection of vacuum atomizing ([1] Smethie Jr, W.M., Mathieu, G.:Measurement ofkrypton-85 in the ocean.Marine Chemistry 18 (1986), No.1,17-33), adopt vacuum pump to make system vacuum, then utilize solution gas in high pressure vacuum atomizing extraction environment water, compressor compresses is finally utilized to collect, this kind of method degassing efficiency is low, system complex, operation inconvenience, another kind is that ([2] Probst, P.C. is collected in the degassed compression of film, Yokochi, R., SturchioN.C.:Method for Extraction of Dissolved Gases From Groundwater for Radiokrypton Analysis.4th Mini Conference on Noble Gases in the Hydrosphere and in Natural Gas Reservoirs, 2007), vacuum pump is adopted to make system vacuum, utilize a kind of hydrophobic porous hollow-fibre membrane that ambient water is separated with solution gas, compressor compresses is finally utilized to collect solution gas, although this kind of method degassing efficiency is higher, but still use gas compression collection technique, or even multi-level gas compress technique, increase cost and system complexity, add operation simultaneously, carry and the difficulty safeguarded, for inapplicable under some extreme field environment.Therefore urgently need one to take into account high-speed and high-efficiency, system is simple, operates, carries and degas system easy to maintenance, thus greatly expand its use range.
Summary of the invention
The present invention is the weak point for avoiding existing for above-mentioned prior art, provides a kind of simple to operate, portable system and method utilizing film devolatilization vacuum collection technique separation and Extraction solution gas from ambient water.
The present invention, for realizing goal of the invention, adopts following technical scheme:
The system of the present invention's separation and Extraction solution gas from ambient water comprises treatment device for water, film de-gassing vessel, vacuum collection device and flow control device, wherein:
Described treatment device for water for removing the impurity particle in ambient water, and carries out record to the pressure of described ambient water, temperature, flow velocity and flow;
Described film de-gassing vessel be used for the ambient water from described treatment device for water is carried out gas-liquid separation, deviate from solution gas wherein, and by complete degassed after ambient water continue discharge;
Described vacuum collection device is used for the evacuation and the cleaning systems that successively complete whole system, and the solution gas then produced by described film de-gassing vessel routinely pumping enters in gas cylinder to collect;
Described flow control device is used for the work of all parts of Controlling System, comprises work and the on off state of the electron device controlled needed for whole system operating process.
The constructional feature of the present invention's system of separation and Extraction solution gas from ambient water is also: described treatment device for water comprises strainer, hydraulic gage, water thermometer and water ga(u)ge, wherein: described strainer was used for the impurity particle filtered in ambient water; Described hydraulic gage is for monitoring the pressure of the ambient water after described metre filter; Described water thermometer is for monitoring the temperature of the ambient water after described metre filter; Described water ga(u)ge is for recording flow velocity and the flow of the ambient water after described metre filter.
In described film de-gassing vessel, be provided with degassing film, described degassing film is used for the ambient water from described treatment device for water to carry out gas-liquid separation, deviates from gas dissolved wherein, and the ambient water after deviating from gas dissolved is continued to discharge.
Described vacuum collection device comprises surge pump, the first pressure warning unit and the second pressure warning unit, wherein: described surge pump is used for the evacuation and the cleaning systems that successively complete whole system, then the solution gas that described film de-gassing vessel produces is continued pumping and enters in gas cylinder to collect; Described first pressure warning unit and described second pressure warning unit are respectively used to monitor the air pressure before and after described surge pump, to judge that described surge pump is collected the degree of solution gas and judges finally to collect the solution gas total amount obtained.
Extract from ambient water in the system of solution gas in the present invention, by effectively optimizing and the dimensional structure of film de-gassing vessel, described vacuum collection device and described flow control device described in properly distributed, can the portability of implement device and ease for maintenance.
In the present invention, described ambient water is selected from underground water, surface water, ocean water or ice core dissolved water.
The invention also discloses the method utilizing said system separation and Extraction solution gas from ambient water, described method comprises:
Water conditioning step, that ambient water is passed in treatment device for water, with the impurity particle in metre filter removing ambient water, then, after the ambient water after described metre filter being monitored hydraulic pressure, water thermometer monitoring water temperature and water ga(u)ge record flow velocity and flow by hydraulic gage, send in described film de-gassing vessel;
Cleaning systems step, be with the surge pump in described vacuum collection device first by the air pumping in system to outside system, then be that the ambient water after described treatment device for water process is passed in described film de-gassing vessel, solution gas is wherein deviate from by degassing film, and with surge pump by deviate from solution gas routinely pumping to outside system, with the pumping residual air in removal system, thus to realize in ambient water solution gas to the cleaning of system;
Film de-airing step, is, with degassing film, the ambient water after described treatment device for water process is carried out gas-liquid separation, deviates from solution gas wherein, and by complete degassed after ambient water continue discharge;
With vacuum collection step, be under the first pressure warning unit and described second pressure warning unit monitor, with surge pump, the solution gas that described film de-gassing vessel produces continued pumping and enter in gas cylinder to collect.
By method of the present invention, nitrogen, oxygen, argon gas, carbonic acid gas, Krypton and methane can be comprised by the main solution gas effectively contamination-freely in separation and Extraction ambient water.
First surge pump of the present invention vacuumizes for system, but the highest attainable vacuum of surge pump is poor, cannot completely by evacuating air in system, and this part air remnants can produce pollution to solution gas sample, therefore need with solution gas, this part air remnants to be diluted again, outside discharge system, thus at utmost reduce atmospheric pollution.
Compared with the prior art, beneficial effect of the present invention is embodied in:
The system and method that the present invention utilizes film devolatilization vacuum collection technique to extract solution gas from ambient water (as underground water, surface water, ocean water or ice core dissolved water etc.) is a kind of high-level efficiency, the method such as comprehensive utilization degassing film gas delivery, vacuum pump collection and confinement of gases of low cost extracts the technology of solution gas wherein.The solution gas that the method is extracted, by further rare gas element concentration and separation, can be used for the application such as the Isotopic Tracing Analysis of environmental sample, such as, carries out radio isotope
39ar and
81kr,
85kr surveys year etc.
System of the present invention has that cost is low, simple to operate, degassing efficiency is high, it is portable with features such as maintenances to be easy to, and weight is low, size is little, single can braces, to extreme field environment almost without any use restriction, be therefore applicable to very much the extraction of ambient water solution gas.
Accompanying drawing explanation
In order to be illustrated more clearly in disclosure embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the disclosed system of separation and Extraction solution gas from ambient water of disclosure embodiment;
Number in the figure: 110 treatment device for water; 1101 strainers; 1102 hydraulic gages; 1103 water thermometers; 1104 water ga(u)ges; 102 film de-gassing vessels; 120 vacuum collection device; 1201 first pressure warning units; 1202 surge pumps; 1203 second pressure warning units; 101 flow control devices.
Embodiment
For enabling above-mentioned purpose of the present disclosure, feature and advantage become apparent more, are described in further detail the application below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, present embodiment discloses a kind of system of separation and Extraction solution gas from ambient water, comprising: treatment device for water 110, vacuum collection device 120, film de-gassing vessel 102 and flow control device 101, wherein:
Treatment device for water 110 comprises strainer 1101, hydraulic gage 1102, water thermometer 1103 and water ga(u)ge 1104, wherein: strainer was used for the impurity particle filtered in ambient water; Hydraulic gage is for monitoring the pressure of the ambient water after being filtered; Water thermometer is for monitoring the temperature of the ambient water after being filtered; Water ga(u)ge is for recording flow velocity and the flow of the ambient water after being filtered.
Be provided with degassing film in film de-gassing vessel 102, degassing film is used for the ambient water from treatment device for water 110 to carry out gas-liquid separation, deviates from gas dissolved wherein, and the ambient water after deviating from gas dissolved is continued to discharge.
Vacuum collection device 120 comprises: surge pump 1202, first pressure warning unit 1201 and the second pressure warning unit 1203, wherein: surge pump is used for the evacuation and the cleaning systems that successively complete whole system, then the solution gas that film de-gassing vessel produces is continued pumping and enters in gas cylinder to collect; First pressure warning unit 1201 and the second pressure warning unit 1203 are respectively used to monitor the air pressure before and after surge pump 1202, to judge that surge pump is collected the degree of solution gas and judges finally to collect the solution gas total amount obtained.
Flow control device 101 is for the work of all parts of Controlling System.
The using method of the present embodiment said system, utilizes the method for said system separation and Extraction solution gas from ambient water to be in other words:
Under flow control device 101 controls, successively ambient water to be filtered by the strainer 1101 in treatment device for water 110, hydraulic gage 1102, water thermometer 1103 and water ga(u)ge 1104, water pressure monitoring, water temperature detection and flow velocity and discharge record.
Under flow control device 101 controls, utilize surge pump 1202 in vacuum collection device 120 by the air pumping in system to outside system, ambient water after treatment device for water process is sent in film de-gassing vessel 102, deviate from solution gas wherein, and with surge pump 1202, solution gas is continued pumping to outside system, with the pumping residual air in removal system, complete the cleaning of solution gas to whole system.
Under flow control device 101 controls, what continue sends into the ambient water after treatment device for water process in film de-gassing vessel 102, deviates from solution gas wherein, and by complete degassed after ambient water continue to discharge.
Under flow control device 101 controls, utilize the surge pump 1202 in vacuum collection device 120, under the supervision of the first pressure warning unit 1201 and the second pressure warning unit 1203, the solution gas that film de-gassing vessel 102 produces is continued pumping and enters in gas cylinder, finally store.
Use system and method for the present invention to the separation and Extraction of solution gas in the ambient water such as laboratory tap water, some fields underground water, measured the change of dissolved oxygen content in ambient water before and after solution gas separation and Extraction by dissolved oxygen meter, can judge that the extraction efficiency of system reaches as high as 95%; Can 5-30L/min be reached by water ga(u)ge to the extraction rate that the record of discharge can obtain system, in addition system of the present invention achieve single can back belt type, weight only has tens kilograms, and environment for use is almost unrestricted.
The system utilizing film devolatilization vacuum collection technique to extract solution gas from ambient water (as underground water, surface water, ocean water or ice core dissolved water etc.) disclosed in this invention is through repeatedly the acquisition of field trial Operation Summary, it is simply efficient, with low cost, be easy to safeguard and portable, to environment for use almost without any restriction, there is great using value and prospect.
Claims (8)
1. the system of a separation and Extraction solution gas from ambient water, it is characterized in that: described system comprises treatment device for water (110), film de-gassing vessel (102), vacuum collection device (120) and flow control device (101), wherein:
Described treatment device for water (110) for removing the impurity particle in ambient water, and carries out record to the pressure of described ambient water, temperature, flow velocity and flow;
Described film de-gassing vessel (102), for the ambient water from described treatment device for water (110) is carried out gas-liquid separation, deviates from solution gas wherein, and by complete degassed after ambient water continue discharge;
The solution gas that described film de-gassing vessel (102) produces, for successively completing evacuation and the cleaning systems of whole system, is then continued pumping and enters in gas cylinder to collect by described vacuum collection device (120);
Described flow control device is used for the work of all parts of Controlling System.
2. the system of separation and Extraction solution gas from ambient water according to claim 1, it is characterized in that: described treatment device for water (110) comprises strainer (1101), hydraulic gage (1102), water thermometer (1103) and water ga(u)ge (1104), wherein:
Described strainer was used for the impurity particle filtered in ambient water;
Described hydraulic gage is for monitoring the pressure of the ambient water after described metre filter;
Described water thermometer is for monitoring the temperature of the ambient water after described metre filter;
Described water ga(u)ge is for recording flow velocity and the flow of the ambient water after described metre filter.
3. the system of separation and Extraction solution gas from ambient water according to claim 1, is characterized in that:
Degassing film is provided with in described film de-gassing vessel (102), described degassing film is used for the ambient water from described treatment device for water (110) to carry out gas-liquid separation, deviate from gas dissolved wherein, and the ambient water after deviating from gas dissolved is continued to discharge.
4. the system of separation and Extraction solution gas from ambient water according to claim 1, it is characterized in that: described vacuum collection device (120) comprising: surge pump (1202), the first pressure warning unit (1201) and the second pressure warning unit (1203), wherein:
Described surge pump is used for the evacuation and the cleaning systems that successively complete whole system, then the solution gas that described film de-gassing vessel produces is continued pumping and enters in gas cylinder to collect;
Described first pressure warning unit (1201) and described second pressure warning unit (1203) are respectively used to monitor the air pressure before and after described surge pump (1202), to judge that described surge pump is collected the degree of solution gas and judges finally to collect the solution gas total amount obtained.
5. the system of separation and Extraction solution gas from ambient water according to any one in claim 1-4, is characterized in that: described ambient water is selected from underground water, surface water, ocean water or ice core dissolved water.
6. utilize a method for the separation and Extraction solution gas from ambient water of system described in any one in claim 1 ~ 4, it is characterized in that: described method comprises:
Water conditioning step, that ambient water is passed in treatment device for water, with the impurity particle in metre filter removing ambient water, then, after the ambient water after described metre filter being monitored hydraulic pressure, water thermometer monitoring water temperature and water ga(u)ge record flow velocity and flow by hydraulic gage, send in described film de-gassing vessel;
Cleaning systems step, be with the surge pump in described vacuum collection device first by the air pumping in system to outside system, then the ambient water after described treatment device for water process is passed in described film de-gassing vessel, solution gas is wherein deviate from by degassing film, and with surge pump, deviate from solution gas is continued pumping to outside system, with the pumping residual air in removal system, thus to realize in ambient water solution gas to the cleaning of system;
Film de-airing step, is, with degassing film, the ambient water after described treatment device for water process is carried out gas-liquid separation, deviates from solution gas wherein, and by complete degassed after ambient water continue discharge;
With vacuum collection step, be under the first pressure warning unit (1201) and described second pressure warning unit (1203) monitor, with surge pump, the solution gas that described film de-gassing vessel produces continued pumping and enter in gas cylinder to collect.
7. the method for separation and Extraction solution gas from ambient water according to claim 6, is characterized in that: described solution gas comprises nitrogen, oxygen, argon gas, carbonic acid gas, Krypton and methane.
8. the method for separation and Extraction solution gas from ambient water according to claim 6 or 7, is characterized in that: described ambient water is selected from underground water, surface water, ocean water or ice core dissolved water.
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Cited By (6)
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CN105254052A (en) * | 2015-11-20 | 2016-01-20 | 苏州荣保昌机械科技有限公司 | Membrane process liquid-gas separation device for deoxidizing boiler |
CN105951219A (en) * | 2016-06-25 | 2016-09-21 | 南通神马线业有限公司 | Degassing method in spinning bath for viscose fiber production |
CN108593371A (en) * | 2018-07-17 | 2018-09-28 | 广州海洋地质调查局 | The de- solution collection device and method of solution gas in water body |
CN108981816A (en) * | 2018-07-27 | 2018-12-11 | 华北水利水电大学 | A kind of open system for hydrographic water resource monitoring |
CN109323909A (en) * | 2018-10-22 | 2019-02-12 | 中国科学技术大学 | One kind automating separation system for gas inert in small tolerance environmental sample |
CN109855913A (en) * | 2019-03-04 | 2019-06-07 | 中国地质科学院水文地质环境地质研究所 | Underground water-borne radioactivity inert gas nucleic surveys year sampling system and its method of sampling |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105254052A (en) * | 2015-11-20 | 2016-01-20 | 苏州荣保昌机械科技有限公司 | Membrane process liquid-gas separation device for deoxidizing boiler |
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CN108981816A (en) * | 2018-07-27 | 2018-12-11 | 华北水利水电大学 | A kind of open system for hydrographic water resource monitoring |
CN109323909A (en) * | 2018-10-22 | 2019-02-12 | 中国科学技术大学 | One kind automating separation system for gas inert in small tolerance environmental sample |
CN109855913A (en) * | 2019-03-04 | 2019-06-07 | 中国地质科学院水文地质环境地质研究所 | Underground water-borne radioactivity inert gas nucleic surveys year sampling system and its method of sampling |
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