CN211502313U - Positive and negative pressure gas circuit switching device for gas purification filling - Google Patents
Positive and negative pressure gas circuit switching device for gas purification filling Download PDFInfo
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- CN211502313U CN211502313U CN201921925198.9U CN201921925198U CN211502313U CN 211502313 U CN211502313 U CN 211502313U CN 201921925198 U CN201921925198 U CN 201921925198U CN 211502313 U CN211502313 U CN 211502313U
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- 238000000746 purification Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 59
- 238000011084 recovery Methods 0.000 claims abstract description 24
- 238000004064 recycling Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000005406 washing Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005429 filling process Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a positive negative pressure gas circuit auto-change over device of gas purification filling relates to gas purification filling technical field. Traditional SF6 purifies filling equipment and need discharge SF6 to the atmosphere when filling, trade bottle, has personal safety hidden danger and polluted environment, extravagant air supply, time simultaneously. The utility model comprises a main gas circuit pipeline provided with a vacuum pressure gauge and a pressure sensor, wherein one end of the main gas circuit pipeline is provided with a control valve and a self-sealing joint which is connected with a gas cylinder through a hose; the other end is a three-branch pipeline, the three-branch pipeline is provided with an electromagnetic valve and a self-sealing joint, and the three-branch pipeline is respectively connected to a vacuumizing port, a recovery port and a filling port of the purifying and filling equipment through hoses. Through the switching of each control valve on the different passageways, realize the whole filling work to gas cylinder evacuation, pipeline washing, pressure release, liquid filling, the operation in-process is not dismouting pipeline, ensures that gas does not discharge to the atmosphere, has realized gas circuit automatic switch-over, promotes work efficiency and environmental protection security.
Description
Technical Field
The utility model relates to a gas purification filling technical field especially relates to gas purification filling positive negative pressure gas circuit auto-change over device.
Background
At present, the traditional SF6 gas direct type low-temperature liquid injection filling system has the following defects:
firstly, before the first steel bottle is connected in each filling way, in order to remove air in the liquid injection connecting pipe, SF6 gas must be discharged in advance from the liquid injection connecting pipe;
secondly, in order to ensure that residual air at the self-sealing joint of the filling liquid-injection connecting pipe and the steel cylinder does not enter the steel cylinder, the self-sealing joint of the steel cylinder is flushed by SF6 gas, so that a certain amount of SF6 gas is discharged;
thirdly, because the traditional direct low-temperature liquid injection and filling system only has one liquid injection pipeline, the processing device has more processing capacity each time, a plurality of steel cylinders need to be filled, and when the steel cylinders are filled in a conversion way, the liquid injection connecting pipeline needs to discharge part of gasified SF6 gas;
fourthly, after the filling is finished, the residual SF6 in the filling connecting pipeline cannot be recovered, the gas pressure can be gradually increased, and the gas can only be directly discharged to the atmosphere;
and fifthly, because the SF6 is filled at low temperature, the filling connecting pipeline and the steel cylinder self-sealing joint are flushed by adopting a manual mode, and operators are at risk of being frostbitten. Meanwhile, the degree of flushing the self-sealing joints of the filling pipeline and the steel cylinder depends on the experience of operators, so that certain influence is generated on the quality of filling gas.
In summary, in the conventional SF6 purification filling equipment, in order to ensure that air resistance and air are not generated in the original filling process of the gas cylinder, operations of discharging SF6 to the atmosphere occur in the filling and cylinder changing processes, the operation process is long, much time is wasted, personal safety hazards exist, the action of discharging SF6 to the atmosphere causes environmental pollution, and simultaneously, the problems of SF6 gas source waste and complicated operation process are caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model and the technical task who provides are perfect and improve prior art scheme, provide gas purification filling positive and negative pressure gas circuit auto-change over device to realize the automatic switch-over of gas circuit under high pressure and vacuum state and promote environmental protection security as the purpose. Therefore, the utility model adopts the following technical scheme.
The positive and negative pressure gas path switching device for gas purification filling comprises a main gas path pipeline, wherein a vacuum pressure gauge is arranged on the main gas path pipeline, one end of the main gas path pipeline is sequentially connected with a gas bottle connecting control valve and a gas bottle connecting self-sealing joint, and the gas bottle connecting self-sealing joint is connected to a gas bottle through a detachable hose; the other end of the main gas path pipeline is provided with three branch pipelines which are respectively a vacuumizing pipeline, a recovery pipeline and a filling pipeline, the vacuumizing pipeline is connected with a vacuumizing control valve and a vacuumizing self-sealing joint, the vacuumizing self-sealing joint is connected to a vacuumizing port of purifying and filling equipment through a detachable hose, the recovery pipeline is connected with a recovering control valve and a recovering self-sealing joint, the recovering self-sealing joint is connected to a recovering port of the purifying and filling equipment through a detachable hose, the filling pipeline is connected with a filling control valve and a filling self-sealing joint, and the filling self-sealing joint is connected to a filling port of the purifying and filling equipment through a detachable hose; the two ends of the detachable hose are provided with hose self-sealing joints, and the inner side of one hose self-sealing joint is connected with a hose valve.
This device utilizes the original evacuation mouth that possesses of purification filling equipment, the gas recovery mouth, the gas filling mouth, switching control through each control valve on the different passageways, realize the gas cylinder evacuation, the pipeline is washed, the pressure release, the whole filling work of liquid filling, thereby realize not dismouting pipeline among the whole operation process, ensure that gas no longer discharges to the atmosphere, automatic pressure release is simultaneously and the interior residual gas of recovery pipeline, the filling process is not the air lock, not sneak into the air, work efficiency is improved, the automatic switch-over of gas circuit under high pressure and vacuum state has been realized, environmental protection security has been promoted.
As a preferable technical means: the gas receiving bottle self-sealing joint is connected with the inlet end of the gas receiving bottle control valve, the vacuumizing self-sealing joint is connected with the inlet end of the vacuumizing control valve, the recovering self-sealing joint is connected with the inlet end of the recovering control valve, the filling self-sealing joint is connected with the inlet end of the filling control valve, and the hose self-sealing joint is connected with the hose valve in a threaded mode. The threaded connection is firm and reliable, and long-term air tightness can be realized.
As a preferable technical means: the gas receiving bottle control valve, the vacuumizing control valve, the recycling control valve, the filling control valve and the hose valve are all electromagnetic valves. The control of the electromagnetic valve is simpler and more convenient than a mechanical valve, and the electromagnetic valve can be remotely operated.
The main gas circuit pipeline is also provided with a pressure sensor, and the pressure sensor and the electromagnetic valve are both connected to a controller of the purifying and filling equipment. Through being connected to pressure sensor and solenoid valve on purifying filling equipment's the controller, make the control operation can concentrate on purifying filling equipment's controller position, can realize remote monitoring and switching control to pipeline internal pressure effectively, compare in traditional operating mode, operation control is simple and convenient more, can effectively realize carrying out the change of gas cylinder again after the passageway initiative is cut off, because of SF6 gas leakage and high pressure launch and lead to the bodily injury when having avoided traditional mode to change, operation security has effectively been promoted.
Has the advantages that:
1) the original evacuation mouth that possesses of filling equipment, gas recovery mouth, gaseous filling mouth are purified in the utilization, through the switching control of each control valve on the different passageways, realize the whole filling work to gas cylinder evacuation, pipeline washing, pressure release, liquid filling, have avoided traditional adoption manual work to dismantle the switching mode of external pipeline to another interface again, have shortened the time that a large amount of pipelines switched, have effectively promoted work efficiency.
2) This device is at whole operation in-process dismouting pipeline not, has realized the automatic switch-over of gas circuit under high pressure and vacuum state, ensures that gas no longer discharges to the atmosphere, and automatic pressure release and recovery pipeline are interior to remain gaseous simultaneously, and the filling process is air-resistor not, not sneak into the air, has guaranteed the gas purity in the gas cylinder, has promoted environmental protection security.
3) Through adopting pressure sensor and solenoid valve, make the control operation can concentrate on purifying filling equipment's controller position, can realize the remote monitoring and the switching control to the pipeline internal pressure effectively, compare in traditional operating mode, operation control is simple and convenient more, can effectively realize carrying out the change of gas cylinder again after the passageway initiative is cut off, because of SF6 gas leakage and high pressure launch and lead to the bodily injury when having avoided traditional mode to change, effectively promoted operation security.
Drawings
Fig. 1 is a schematic connection diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic view of the detachable hose of the present invention.
In the figure: 1-gas path switching device; 2-a detachable hose; 3-a gas cylinder; 4-purifying and filling equipment; 101-a main gas path pipeline; 102-a vacuum-pumping duct; 103-filling a pipeline; 104-a recovery pipeline; 105-a fill control valve; 106-a recovery control valve; 107-vacuum pressure gauge; 108-connecting a gas cylinder control valve; 109-self-sealing joint of gas receiving bottle; 110-filling self-sealing joints; 111-recovering self-sealing joints; 112-vacuumizing self-sealing joint; 113-vacuum control valve; 114-a pressure sensor; 201-hose valve; 202-flexible pipe self-sealing joint; 401-filling port; 402-a recovery port; 403-vacuum port.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
Example one
As shown in fig. 1-3, the gas purification filling positive-negative pressure gas path switching device comprises a main gas path pipeline 101, a vacuum pressure gauge 107 is arranged on the main gas path pipeline 101, one end of the main gas path pipeline 101 is sequentially connected with a gas bottle connection control valve 108 and a gas bottle connection self-sealing joint 109, and the gas bottle connection self-sealing joint 109 is connected to a gas bottle 3 through a detachable hose 2; the other end of the main gas path pipeline 101 is provided with three branch pipelines which are respectively a vacuumizing pipeline 102, a recovery pipeline 104 and a filling pipeline 103, the vacuumizing pipeline 102 is connected with a vacuumizing control valve 113 and a vacuumizing self-sealing joint 112, the vacuumizing self-sealing joint 112 is connected to a vacuumizing port 403 of the SF6 purifying and filling equipment 4 through a detachable hose 2, the recovery pipeline 104 is connected with a recovery control valve 106 and a recovery self-sealing joint 111, the recovery self-sealing joint 111 is connected to a recovery port 402 of the purifying and filling equipment 4 through a detachable hose 2, the filling pipeline 103 is connected with a filling control valve 105 and a filling self-sealing joint 110, and the filling self-sealing joint 110 is connected to a filling port 401 of the purifying and filling equipment 4 through a detachable hose 2; two ends of the detachable hose 2 are provided with a hose self-sealing joint 202, and the inner side of one hose self-sealing joint 202 is connected with a hose valve 201.
In order to realize long-term connection sealing effect, the gas receiving bottle self-sealing joint 109 and the inlet end of the gas receiving bottle control valve 108, the vacuumizing self-sealing joint 112 and the inlet end of the vacuumizing control valve 113, the recycling self-sealing joint 111 and the inlet end of the recycling control valve 106, the filling self-sealing joint 110 and the inlet end of the filling control valve 105, and the hose self-sealing joint 202 and the hose valve 201 are connected in a threaded manner. The threaded connection is firm and reliable, long-term air tightness can be realized, and the sealing effect of the connecting part is good.
This device utilizes the former evacuation mouth 403 that possesses of SF6 purification filling equipment 4, gas recovery mouth 402, gas filling mouth 401, switching control through each control valve on the different passageways, realize 3 evacuation to the gas cylinder, the pipeline washes, the pressure release, the whole filling work of liquid filling, thereby realize not dismouting pipeline among the whole operation process, ensure that gas no longer discharges to the atmosphere, automatic pressure release and retrieve the interior residual gas of pipeline simultaneously, the filling process is not the air lock, not sneak into the air, the work efficiency is improved, environmental protection safety has been promoted.
In this example, the control valves are all mechanical valves.
Example two
In contrast to the above example:
in order to realize remote on-off control and simplify the on-off operation, the air bottle connection control valve 108, the vacuum control valve 113, the recovery control valve 106, the filling control valve 105 and the hose valve 201 are all solenoid valves. The control of the electromagnetic valve is simpler and more convenient than a mechanical valve, and the electromagnetic valve can be remotely operated.
In order to realize centralized control operation and improve operation safety, a pressure sensor 114 is further arranged on the main gas pipeline 101, and the pressure sensor 114 and the electromagnetic valve are both connected to the controller of the purified filling equipment 4. Through being connected to pressure sensor 114 and solenoid valve on the controller of purification filling equipment 4, make control and operation can concentrate on the controller position of purification filling equipment 4, can realize remote monitoring and switching control to the pipeline internal pressure effectively, compare in traditional operating method, operation control is simple and convenient more, can effectively realize carrying out the change of gas cylinder 3 again after the passageway initiative is cut off, because of SF6 gas leakage and high pressure launch and lead to bodily injury when having avoided traditional mode to change, operation safety has effectively been promoted.
Through the operation of a centralized controller, in step 9, alarming and reminding of closing the valve of the gas cylinder 3 are provided at the same time when the filling is finished, and a next step of instruction is waited; in step 10, an instruction of whether to replace the gas cylinder 3 is prompted; in step 11, the controller will be prompted to connect a new gas cylinder 3.
The gas purification filling positive and negative pressure gas circuit switching device shown in the above fig. 1-3 is a specific embodiment of the present invention, and embodies the outstanding substantive features and significant progress of the present invention, and can perform equivalent modification of the aspects of shape, structure, etc. according to the actual use requirement, under the inspiration of the present invention, all in the protection scope of the present scheme.
Claims (4)
1. Gas purification filling positive negative pressure gas circuit auto-change over device, its characterized in that: the gas cylinder self-sealing device comprises a main gas circuit pipeline (101), wherein a vacuum pressure gauge (107) is arranged on the main gas circuit pipeline (101), one end of the main gas circuit pipeline (101) is sequentially connected with a gas cylinder control valve (108) and a gas cylinder self-sealing joint (109), and the gas cylinder self-sealing joint (109) is connected to a gas cylinder (3) through a detachable hose (2); the other end of the main gas circuit pipeline (101) is provided with three branch pipelines which are respectively a vacuum-pumping pipeline (102), a recovery pipeline (104) and a filling pipeline (103), the vacuum-pumping pipeline (102) is connected with a vacuum-pumping control valve (113) and a vacuum-pumping self-sealing joint (112), the vacuumizing self-sealing joint (112) is connected to a vacuumizing port (403) of the purifying and filling equipment (4) through a detachable hose (2), the recovery pipeline (104) is connected with a recovery control valve (106) and a recovery self-sealing joint (111), the recovery self-sealing joint (111) is connected to a recovery port (402) of the purifying and filling equipment (4) through a detachable hose (2), the filling pipeline (103) is connected with a filling control valve (105) and a filling self-sealing joint (110), the filling self-sealing joint (110) is connected to a filling opening (401) of the purifying and filling equipment (4) through a detachable hose (2); two ends of the detachable hose (2) are provided with hose self-sealing joints (202), and the inner side of one hose self-sealing joint (202) is connected with a hose valve (201).
2. The gas purification filling positive and negative pressure gas circuit switching device according to claim 1, wherein: the gas receiving bottle self-sealing joint (109) is connected with the inlet end of the gas receiving bottle control valve (108), the vacuumizing self-sealing joint (112) is connected with the inlet end of the vacuumizing control valve (113), the recycling self-sealing joint (111) is connected with the inlet end of the recycling control valve (106), the filling self-sealing joint (110) is connected with the inlet end of the filling control valve (105), and the hose self-sealing joint (202) is connected with the hose valve (201) in a threaded manner.
3. The gas purification filling positive and negative pressure gas circuit switching device according to claim 2, wherein: the air receiving bottle control valve (108), the vacuumizing control valve (113), the recycling control valve (106), the filling control valve (105) and the hose valve (201) are all electromagnetic valves.
4. The gas purification filling positive and negative pressure gas circuit switching device according to claim 3, wherein: the main gas circuit pipeline (101) is also provided with a pressure sensor (114), and the pressure sensor (114) and the electromagnetic valve are both connected to a controller of the purifying and filling equipment (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921925198.9U CN211502313U (en) | 2019-11-10 | 2019-11-10 | Positive and negative pressure gas circuit switching device for gas purification filling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921925198.9U CN211502313U (en) | 2019-11-10 | 2019-11-10 | Positive and negative pressure gas circuit switching device for gas purification filling |
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| CN211502313U true CN211502313U (en) | 2020-09-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906162A (en) * | 2019-11-10 | 2020-03-24 | 国网浙江省电力有限公司检修分公司 | Positive and negative pressure gas circuit switching device for gas purification filling and use method thereof |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906162A (en) * | 2019-11-10 | 2020-03-24 | 国网浙江省电力有限公司检修分公司 | Positive and negative pressure gas circuit switching device for gas purification filling and use method thereof |
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