CN2142921Y - Device for recoverying and filling gas - Google Patents
Device for recoverying and filling gas Download PDFInfo
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- CN2142921Y CN2142921Y CN 92238637 CN92238637U CN2142921Y CN 2142921 Y CN2142921 Y CN 2142921Y CN 92238637 CN92238637 CN 92238637 CN 92238637 U CN92238637 U CN 92238637U CN 2142921 Y CN2142921 Y CN 2142921Y
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- chamber
- valve
- septum
- working medium
- gas
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Abstract
The utility model relates to a device for recovering and filling gas. The body of the device for recovering and filling gas is connected by a liquid pump, a diaphragm chamber, a heat exchanger, a control valve and a pipeline. Under the control of an automatic controller, the liquid pump alternately pumps or presses motive power medium into the motive power medium cavity of the diaphragm chamber, and working media (recovered gases) are pumped from the suction mouth of the working medium cavity of the diaphragm chamber and are exhausted from a pressed-out mouth by a diaphragm. With the accelerating liquefaction of the heat exchanger, the gases in a recovered container are thoroughly recovered in a storage tank without pollution with purity. The utility model is suitable for recovering and filling valuable, toxic and explosive gases such as SF6, etc.
Description
The utility model is a kind of recovery and filling device of gas, is mainly used in SF
6High-Voltage Electrical Appliances (container) make and use in to SF
6Recovery, charge and store, also can be used for recovery, can and the storage of other rare gas or noble gas.
Usually, the conveying and the recovery of rare noble gas are finished by diaphragm type compressor, and this compressor makes medium keep pure, and good airproof performance, but owing to be subjected to the intensity of diaphragm material and the restriction of liquid inertia, its film chamber volume can not be too big, rotating speed can not be too high, only is applicable to stingy amount conveying.In addition the complex structure of this compressor, volume heaviness, involve great expense, work mechanism is stiff, maintenance difficulty is big, service cycle is short, it is lower than rate to work, these can be found out from the parameter comparison table of molding machine and air compressor significantly.
| Classification | Diaphragm type compressor | |
| Model | IG3V－20／200 | IG3V－40／13 |
| Air displacement M
3／ |
20 | 40 |
| Exhaust pressure MPa | 20.1 | 1.4 |
| Power KW | 13 | 30 |
| External dimension (length * wide * height) | 1840×1070 ×1400 | 1900×980 ×1360 |
| Weight Kg | 2000 | 2000 |
| Reference price (unit) | 60000 | 60000 |
| Manufacturer | Beijing one logical machine factory | Beijing one logical machine factory |
Continuous table:
| Classification | Air compressor | |
| Model | 2V1.5-0.6/350 | CZ-20/30 |
| Air displacement M
3／ |
36 | 20 |
| Exhaust pressure MPa | 35.1 | 3.1 |
| Power KW | 13 | 5.5 |
| External dimension (length * wide * height) | 1300×1050 ×900 | 402×418 ×602 |
| Weight Kg | 500 | 80 |
| Reference price (unit) | 25000 | 1050 |
| Manufacturer | Liuzhou | Huge state |
(data are selected from " the chemistry of fuel industry equipment data book " that material supply management office of burning portion compiled in 1975 in the table)
Usually the nothing oil recovery than rough vacuum gas can realize by oil-free lubrication bellow sealed type oil-sealed rotary pump.Though this pump has solved the oil pollution problem, brought the metallic dust pollution, and ultimate vacuum not high (general 〉=2000Pa), its other shortcoming be the running noises height (＞90db), inefficiency, complex structure, volume heaviness, cost are higher.(the detailed introduction of this vacuum pump can be rolled up 177 pages of third phases referring to " vacuum science and technology " the 3rd).
It is that 86207843 " gas filling and recovering device " is to adopt oil-free lubrication bellow sealed type oil-sealed rotary pump and diaphragm type compressor series connection to reclaim SF that the patent No. is arranged
6Gas, this device has the various shortcomings of oil-free vacuum pump and diaphragm type compressor.
Other has the patent No. is 89204749 " charging and discharging and recovering device of gas ", utilizes inner chamber the pressurized container of rubber bulb and oil-sealed rotary pump to be housed with SF
6Gas is extracted in the rubber bulb of this container, and the degree of vacuum that the suction inlet of dependence diaphragm type compressor provides is with SF in this container rubber bulb
6Gas is taken away, finishes recovery operation.The shortcoming of this device is compressor to be arranged back level string, if left the diaphragm type compressor of back level, prime can't be worked, thereby this device still has the various shortcomings of diaphragm type compressor.
More than two kinds of devices be manual operations, shortcoming such as system complex, Security, reliability can not get guaranteeing, the diaphragm type compressor maintenance is frequent.
The utility model provides a kind of novel gas to reclaim and filling device, neither uses oil-free vacuum pump also not use diaphragm type compressor, and can guarantee that gas is reclaiming and charging in the process not contaminated, and makes gas reclaim thoroughly (residual voltage＜2000Pa).
Gas recovery system of the present utility model mainly is by chamber of septum, general fluid power machine, one group of control valve, one group of state sensor and compositions such as automatic controller, purifier, heat exchanger and connecting tube.It is characterized in that: (1) general fluid power machine, (as air compressor, liquid pump etc.), be connected dynamic medium chamber one side of chamber of septum by valve and pipeline, working medium chamber one side (working medium refers to reclaim gas) of chamber of septum also is connected with pipeline by valve, forms a total working medium suction port and working medium and extrudes mouth.(2) barrier film of chamber of septum has precompose that direction points to the dynamic medium chamber firmly all the time.(3) the gas suction port of the negative pressure mouth of general fluid power machine, malleation mouth and chamber of septum working medium side, extrusion mouth are provided with state sensor, its sampled signal links to each other with the input end of automatic control, and the output terminal of automatic controller is received the power control terminal of each control valve digital display and general fluid power machine.
Principle of the present utility model is by controlling the keying of each controlled valve by setting sequential loop, general fluid power machine is taken turns dynamic medium to be pressed into from the malleation mouth dynamic medium chamber of respective diaphragm chamber, take turns again simultaneously its negative pressure mouth of the dynamic medium inspiration in the dynamic medium chamber of respective diaphragm chamber, thereby the barrier film of each chamber of septum is shunk, the distending alternating motion, this motion makes chamber of septum working medium chamber also alternately be inhaled into or extrude, extrude mouth so make the working medium uniaxially transport to working medium, thereby finish the recovery operation of gas from the working medium suction port.
The sequential loop of controlled valve opens and closes and can be controlled by automatic controller, and the foundation of its control is from the induced signal and the setting switch condition of each state sensor.Digital display can demonstrate various status parameters intuitively in entire work process, wherein in a single day the purpose status parameter reaches the setting requirement, and automatic controller just sends instruction, cuts off the dynamo-electric source of motive force, end-of-job.
The barrier film of the utility model chamber of septum makes dynamic medium and working medium be in complete isolation all the time, has guaranteed that gas avoids the pollution of impurity such as oil, metallic dust in callback course.The more important thing is because the barrier film of chamber of septum has the precompression (both elastic diaphragm shrinking stresses) that direction is pointed to the dynamic medium chamber, structural design by chamber of septum, can make this precompression easily greater than the 0.1MPa(absolute pressure), like this as long as the negative pressure mouth of general fluid power machine can provide 0 gauge pressure, the precompression of barrier film shrinks barrier film, just the negative-pressure gas that holds in the gas can be sucked in the working medium chamber, when the malleation dynamic medium is pressed into the dynamic medium chamber, to make the barrier film distending, the working medium compression is discharged from extruding mouth, by repeatedly circulation, make that the gas that is recovered in the gas container is fewer and feweri, the final feasible degree of vacuum that is recovered in the container is more and more higher, and its theoretical limit degree of vacuum approaches zero.Practical limit degree of vacuum depends on the volumetric efficiency in chamber of septum working medium chamber.(extruding the volume in the clearance/working medium chamber of mouthful outlet valve).The application of this principle makes to have possessed the pollution-free function that vacuumizes and compress simultaneously by the general fluid power machine that only possesses compression function.
Compare with like product in the past, the utlity model has following advantage:
1, the diaphragm type compressor and the oil-free vacuum pump that have replaced expensive heaviness with inexpensive Hydrodynamic machine and chamber of septum, make of the present utility model simple in structure, easy to manufacture, cheap, reclaim thoroughly and overcome the various shortcomings of diaphragm type compressor and oil-free vacuum pump.
2, the utility model is electromechanical device (liquid) integrated device, and the work overall process can be controlled by automatic controller, has alleviated labor intensity greatly, thereby has also improved the safety reliability of work.
Further specify the utility model below in conjunction with drawings and Examples.
Present embodiment is more complete SF
6Gas reclaims and filling device.
Fig. 1 is the work system figure of present embodiment.
Fig. 2 is the installation drawing of present embodiment.
The working principle of present embodiment is as follows:
Provide power by liquid pump (22), action by selector valve (21), alternately the liquid in the chamber of septum (1) (being dynamic medium) is extracted out and is pressed onto in the dynamic medium chamber of chamber of septum (2), again the liquid in the chamber of septum (2) is extracted out and pushed back in the dynamic medium chamber of chamber of septum (1), make barrier film in two chamber of septum do like this and collapse alternately power, thereby make the volume of working medium of two chamber of septum alternately change to maximum (near the chamber of septum internal volume) from minimum (clearance) near zero, change to minimum from maximum again, by the coordination of each control valve, finish the no oil of this device and vacuumize again, SF is reclaimed in the oil-free vacuum compression
6With charge SF
6Function, realize that the course of action of these functions and principle are as follows:
1, vacuumizes: promptly respectively device proper and container (10) and high pressure tank (19) are vacuumized.
When vacuumizing, valve (6) is opened all the time, the electromagnet 1DT interlock of valve (3) and selector valve (21), the electromagnet 2DT interlock of valve (8) and selector valve (21), under the effect of liquid pump (22), and the continuous commutation by selector valve (21), make gas pass through the working medium chamber that valve (3) and valve (8) alternately be drawn into two chamber of septum and alternately be discharged in the atmosphere again by valve (4), (7) and valve (6).The condition of high vacuum degree of the working medium of chamber of septum is to be realized by the pre-contractile force of barrier film, structural design (as shown in Figure 4) by chamber of septum, can make the pressure of the pre-contractile force generation 〉=0.1MPa of barrier film easily, thereby realize using common liquid pump to finish the purpose that no oil vacuumizes work.The commutation of selector valve in the whole process (21) is controlled automatically by electrical-controller, when pressure transducer (20) occurs once greater than its upper limit set value, trigger signal of signal comparator output in the electrical-controller makes the bistable circuit upset once, and drive circuit just makes valve (21) also correspondingly commutate once.Be less than or equal to its lower limit set value until sensor (13).
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the chamber of septum structural representation.
(1), (2) are chamber of septum among Fig. 1, the big several magnitude of the active chamber of its volume ratio molding machine (as making 120 liters), (3), (8) they are the air inlet solenoid valve, (5), (9) they are solenoid valve, (4), (7) be exhaust check valve, (10) are for being recovered or charging container (as SF
6High-Voltage Electrical Appliances), (6), (11), (15), (16), (18) are control valve, and (12), (13), (20) are pressure transducer, and (14) are purifier (as molecular sieve filter), and (17) are heat exchanger, and (19) are high pressure SF
6Gas holder is (as SF
6The standard steel cylinder), (21) are selector valve (as the 34DY-250 electro-hydraulic reversing valve), and (22) are liquid pump (as the 3G70X4-25/40 screw pump), and (23) are safety valve, and (24) are liquid bath, and (25) are combination valve, and (26) are the fluid infusion one-way valve.
(27), (28), (30) are pressure transducer among Fig. 2, (29), (31), (32), (37), (38) are control valve, (33) be exhaust check valve, (34) are purifier, and (35) are cooler, (36) be electrical-controller, (39) be liquid bath, (40) are safety valve, and (41) are liquid pump, (42) be the fluid infusion one-way valve, (43) are selector valve;
(44), (45), (46), (47) are solenoid valve among Fig. 3, and (48), (49) are chamber of septum, and (50) are support assembly.
(51) are that the chamber of septum working medium is (as SF among Fig. 4
6Gas) air inlet solenoid valve, this valve can be eliminated the opening force of common one-way valve, (52) be the working medium outlet valve, (53) be chamber of septum shell (as the 4MPa pressurized container), (54) be barrier film, it adopts elastic caoutchouc to make, and draws distortion to be enclosed within on the inner sheath (55) by giving, and makes the active force that gives that produces 0.1MPa pressure between the two.
(such as 13.3Pa) electrical-controller control shutdown.
Under the effect of above process, open valve (15) can vacuumize device proper; Open valve (11) can vacuumize container (10); Open valve (16) can vacuumize gas holder (19).
2, reclaim: be about to the SF in the container (10)
6Be recovered in the high pressure tank (19), recovery is the major tasks content of this device, open valve during work (11), (18), valve (16), (15) are closed, the electromagnet 1DT interlock of valve (3), (9) and valve (21), the electromagnet 2DT of valve (8), (5) and valve (21) interlock, all the other working procedure are consistent when vacuumizing.Hold SF in the gas (10)
6Gas is the working medium chamber that alternately is drawn into two chamber of septum by valve (3) and valve (5), alternately be forced out by valve (5) and valve (9) again, being liquefied by purifier (14), heat exchanger (17) and valve (18) is recovered in the high pressure tank (19) again.When the actual measurement of pressure transducer (13) was less than or equal to its lower limit set value (as 2000Pa), recovery operation ended, the electrical-controller controlling organization.
3, charge: promptly the SF in the high pressure tank (19)
6Liquid gas charges and holds in the gas (10).
Open valve (18), (15) and valve (11), this device just carries out the above-mentioned work that charges, when the measured value of pressure transducer (13) during more than or equal to its upper limit set value (such as 0.7MPa), cut-off valve (18), (15) and valve (11) charge end-of-job.
Claims (4)
1, a kind of gas reclaims and filling device, by Hydrodynamic machine, chamber of septum, heat exchanger, purifier, valve and pipeline etc. are formed by connecting, it is a plurality of to it is characterized in that chamber of septum has, be equipped with in each chamber of septum can breathing barrier film, be divided into the dynamic medium chamber and the working medium chamber of mutual isolation, each dynamic medium chamber is imported and exported with Hydrodynamic machine with pipeline and is linked to each other, and each working medium chamber is respectively equipped with a suction port and an extrusion mouth, and all suction ports are unified into a total working medium suction port by suction valve with pipeline, all extrude mouth by outlet valve, are unified into a total working medium with pipeline and extrude mouth.
2, reclaim and filling device by the described gas of claim 1, the barrier film that it is characterized in that chamber of septum is to possess the elastic caoutchouc of pre-contractile force.
3, reclaim and filling device by the described gas of claim 1, it is characterized in that the suction valve that chamber of septum working medium suction port is connect is a solenoid valve, it is one-way valve that the working medium chamber extrudes a mouthful outlet valve that is connect.
4, reclaim and filling device by claim 1 or 2 or 3 described gases, it is characterized in that also being provided with in the device pressure transducer and automatic controller, the input end and the pressure transducer of automatic controller join, and the output terminal of automatic controller is received each solenoid valve and liquid pump power control terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92238637 CN2142921Y (en) | 1992-10-21 | 1992-10-21 | Device for recoverying and filling gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92238637 CN2142921Y (en) | 1992-10-21 | 1992-10-21 | Device for recoverying and filling gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2142921Y true CN2142921Y (en) | 1993-09-29 |
Family
ID=33779582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92238637 Expired - Fee Related CN2142921Y (en) | 1992-10-21 | 1992-10-21 | Device for recoverying and filling gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2142921Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013800A (en) * | 2015-12-24 | 2017-08-04 | 液化空气石油和天然气服务有限公司 | Method for controlling the pressure in underground storage containers |
| CN109114433A (en) * | 2018-10-31 | 2019-01-01 | 官天日 | Two-chamber liquid back and forth drives multi-phase pipeline method and device thereof |
| CN109386730A (en) * | 2017-08-10 | 2019-02-26 | 丰田自动车株式会社 | The connection structure of pressure vessel, tank module and tank module manufacturing methods including it |
| CN114508697A (en) * | 2022-02-28 | 2022-05-17 | 杭州玖聚能源科技有限公司 | Gas-liquid two-phase medium pressurizing and conveying device |
-
1992
- 1992-10-21 CN CN 92238637 patent/CN2142921Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013800A (en) * | 2015-12-24 | 2017-08-04 | 液化空气石油和天然气服务有限公司 | Method for controlling the pressure in underground storage containers |
| CN109386730A (en) * | 2017-08-10 | 2019-02-26 | 丰田自动车株式会社 | The connection structure of pressure vessel, tank module and tank module manufacturing methods including it |
| CN109114433A (en) * | 2018-10-31 | 2019-01-01 | 官天日 | Two-chamber liquid back and forth drives multi-phase pipeline method and device thereof |
| CN114508697A (en) * | 2022-02-28 | 2022-05-17 | 杭州玖聚能源科技有限公司 | Gas-liquid two-phase medium pressurizing and conveying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |