CN114352744B - Self-sealing pressurizing and pressure releasing device - Google Patents
Self-sealing pressurizing and pressure releasing device Download PDFInfo
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- CN114352744B CN114352744B CN202111488884.6A CN202111488884A CN114352744B CN 114352744 B CN114352744 B CN 114352744B CN 202111488884 A CN202111488884 A CN 202111488884A CN 114352744 B CN114352744 B CN 114352744B
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- 238000007789 sealing Methods 0.000 title claims abstract description 113
- 238000007599 discharging Methods 0.000 claims abstract description 76
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 238000004043 dyeing Methods 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a self-sealing pressurizing and pressure releasing device, which comprises: the support frame is used for fixing the high-pressure container; the self-sealing interface is used for plugging an opening of the high-pressure container, a movable valve core is arranged in the self-sealing interface, and the high-pressure container is sealed or released by the movable valve core; the filling and discharging head comprises a filling and discharging sleeve and a thimble, the filling and discharging sleeve is pushed by a pushing component to be sleeved with the self-sealing interface, the pushing component is connected with the supporting frame, the inside of the filling and discharging sleeve is communicated with the high-pressure hose through a side hole, and the thimble is arranged in the filling and discharging sleeve corresponding to the movable valve core. The invention can realize automatic pressure filling and releasing, improves the degree of automation, can suck residual gas and reduces the leakage loss of the gas in the pipeline.
Description
Technical Field
The invention relates to the technical field of pressurization and pressure relief, in particular to a self-sealing mechanical pressurization and pressure relief device.
Background
Supercritical carbon dioxide fluid (Supercritical Carbon dioxide Fluid SCF-CO for short) 2 ) Dyeing refers to a method and a technology for dyeing textiles by using carbon dioxide in a critical state or above as a dyeing medium. Because it no longer uses the traditional water bath, it fundamentally solves the water pollution problem. Supercritical fluid dyeing technology is developed successively in all countries of the world at present to replace the traditional water bath dyeing method with high energy consumption and high pollution.
In addition, carbon dioxide is a good solvent in a supercritical state because of no combustion supporting, no toxicity, no corrosiveness and safe nature, and has low critical temperature and pressure (the critical temperature is 31.1 ℃ and the critical pressure is 7.38 MPa), so that the carbon dioxide stands out from a plurality of supercritical fluid media and is widely researched and applied in other related industrial industries.
However, according to the prior studies and the characteristics of supercritical carbon dioxide fluid, the implementation and application of the processing technology, such as dyeing of textiles, are generally required to be performed at a higher working temperature and working pressure. Therefore, the application of the technology and the process is often carried out in an autoclave body, such as a high-temperature high-pressure dyeing cylinder, a reaction kettle, an extraction kettle and the like. The volume of the industrialized autoclave body is large, and valves for pressurizing and depressurizing the high-pressure container are correspondingly enlarged. Therefore, the system pressure applied to the valve during working is larger, so that the difficulty of opening and closing and sealing is increased, and the operation safety coefficient of the equipment is lower. Meanwhile, the switch is troublesome and laborious, so that the production efficiency is low, and the durability of the valve and other parts is required to be improved when frequent pressurization and pressure relief are performed, and meanwhile, leakage accidents are easy to occur, so that a plurality of unsafe hidden dangers are brought.
Disclosure of Invention
Therefore, the invention aims to overcome the defects of low working efficiency and easy leakage of gas caused by difficult opening of a high-pressure container pressurizing and pressure releasing valve in the prior art, and provides a self-sealing pressurizing and pressure releasing device which realizes automatic pressurizing and pressure releasing and reduces gas leakage loss in a pipeline.
In order to solve the technical problems, the invention provides a self-sealing pressurizing and pressure releasing device, which comprises: comprising the following steps: the self-sealing connector comprises a movable valve core, and the filling and discharging head comprises a filling and discharging sleeve, a thimble, a pushing assembly and a high-pressure hose.
In one embodiment of the invention, the supporting frame is used for fixing a high-pressure container, the self-sealing interface is used for plugging an opening of the high-pressure container, the movable valve core is arranged in the self-sealing interface, the high-pressure container is sealed or released by the movable valve core, the filling and discharging sleeve is pushed by the pushing component to be sleeved with the self-sealing interface, the pushing component is connected with the supporting frame, the high-pressure hose is communicated with the inside of the filling and discharging sleeve, and the ejector pin is arranged in the filling and discharging sleeve corresponding to the movable valve core.
In one embodiment of the invention, the self-sealing interface further comprises a valve seat and an elastic piece, wherein a containing groove for containing the movable valve core and the elastic piece is formed in the first end of the valve seat, the first end is inserted into the opening of the high-pressure container in a sealing mode, an air port is formed in the second end of the valve seat, the size of the air port is smaller than that of the containing groove, two ends of the elastic piece are respectively abutted to the bottom of the movable valve core and the opening of the high-pressure container, and the top of the movable valve core is abutted to the lower surface of the air port.
In one embodiment of the invention, the size of the lower part of the accommodating groove is the same as that of the movable valve core, an air passing space is formed between the upper part of the accommodating groove and the movable valve core, a hollow groove is formed in the lower part of the movable valve core, and the hollow groove is communicated with the air passing space through an air passing hole.
In one embodiment of the invention, the lower edge of the air port is provided with a sealing head in a downward extending mode, and the top of the movable valve core is provided with a first sealing ring at a position corresponding to the sealing head.
In one embodiment of the invention, the top of the movable valve core is provided with a groove, the first sealing ring is pressed in the groove through a valve head, the valve head is locked with the top of the movable valve core, and the top of the valve head is in a truncated cone shape capable of being inserted into the air port.
In one embodiment of the invention, an inner hole is arranged in the middle of the top surface of the charging and discharging sleeve, the inside of the charging and discharging sleeve is communicated with the high-pressure hose through a side hole, the side hole is communicated with the inside of the charging and discharging sleeve through an inner hole, the upper end of the thimble is connected with the inner hole, and a ventilation groove is formed in the side surface of the thimble.
In one embodiment of the invention, an upper buckle cover is arranged at the top of the charging and discharging sleeve, the pushing component is connected with the upper buckle cover, and a second sealing ring is arranged at the inner side of the lower part of the charging and discharging sleeve.
In one embodiment of the invention, a sealing groove is formed in the inner periphery of the lower end of the charging and discharging sleeve, and the second sealing ring is pressed in the sealing groove through a lower buckle cover.
In one embodiment of the invention, the support frame comprises a first vertical plate, a first mounting plate and a second mounting plate which are sequentially arranged on one side of the first vertical plate from bottom to top, the high-pressure container is fixedly connected with the first mounting plate, a second vertical plate is arranged between the first mounting plate and the second mounting plate, a key groove along the moving direction of the filling and discharging head is formed in the second vertical plate, and a key matched with the key groove is arranged on the filling and discharging head.
In one embodiment of the invention, the pushing assembly comprises a driving member and a push rod, and the push rod is driven by the driving member to move.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the device can realize automatic control and positioning, improves the degree of automation and reduces the error of manual operation; meanwhile, residual gas can be pumped, and gas leakage loss in the pipeline is reduced.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic illustration of a self-sealing interface of the present invention;
FIG. 3 is a schematic view of the structure of the filling and discharging head of the present invention;
FIG. 4 is a cross-sectional view taken along line C-C in FIG. 3 in accordance with the present invention;
FIG. 5 is a cross-sectional view taken along line B-B in FIG. 1 in accordance with the present invention;
fig. 6 is a schematic diagram of the operation of the present invention.
Description of the specification reference numerals: 10. a support frame; 11. a first vertical plate; 12. a first mounting plate; 13. a second mounting plate; 14. a second vertical plate; 15. a key slot; 16. a third mounting plate;
20. a self-sealing interface; 21. a movable valve core; 211. a central control groove; 212. air passing holes; 213. a groove; 22. an elastic member; 23. a valve seat; 231. a receiving groove; 232. an air port; 233. a sealing head; 24. a gas passing space; 25. a first seal ring; 26. a valve head;
30. a filling and discharging head; 31. filling and discharging the sleeve; 32. a thimble; 33. a side hole; 34. a high pressure hose; 35. an inner bore; 36. a vent groove; 37. a cover is buckled; 38. a second seal ring; 39. a lower buckle cover;
40. a pushing assembly; 41. a driving member; 42. a push rod;
50. a high pressure vessel.
Description of the embodiments
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Referring to fig. 1, a schematic diagram of an overall structure of a self-sealing pressurizing and pressure releasing device according to the present invention is shown. The pressurizing and pressure releasing device of the invention comprises:
a supporting frame 10 for fixing the high pressure container 50;
the self-sealing interface 20 is used for plugging the opening of the high-pressure container 50, a movable valve core 21 is arranged in the self-sealing interface 20, and the movable valve core 21 is propped by the elastic piece 22 to seal the high-pressure container 50;
the filling and discharging head 30 comprises a filling and discharging sleeve 31 and a thimble 32, the filling and discharging sleeve 31 is pushed and sleeved by a pushing component 40 to form the self-sealing interface 20, the pushing component 40 is connected with the supporting frame 10, the inside of the filling and discharging sleeve 31 is communicated with a high-pressure hose 34 through a side hole 33, and the thimble 32 is arranged in the filling and discharging sleeve 31 corresponding to the movable valve core 21.
The high-pressure container 50 is fixed by the support frame 10, the self-sealing interface 20 is in threaded connection with the high-pressure container 50, the joint of the self-sealing interface 20 and the high-pressure container 50 forms a seal, and in a non-working state, the elastic piece 22 jacks up the movable valve core 21, and an opening of the high-pressure container 50 is sealed to realize self sealing. When high-pressure gas exists in the high-pressure container 50, the high-pressure gas further applies pressure to the movable valve core 21, so that the movable valve core 21 is tightly sealed. In operation, the pushing assembly 40 pushes the filling and discharging head 30 out, the filling and discharging sleeve 31 is sleeved on the self-sealing interface 20, the joint of the filling and discharging sleeve 31 and the self-sealing interface 20 forms a seal, a space between the filling and discharging sleeve 31 and the self-sealing interface 20 forms an inflation space, and the high-pressure hose 34 is communicated with the inflation space. Along with the self-sealing interface 20 is sleeved by the filling and discharging sleeve 31, the ejector pin 32 abuts against the movable valve core 21, the elastic piece 22 is compressed, the opening of the high-pressure container 50 is released, at the moment, the opening of the high-pressure container 50 is communicated with the inflating space, the high-pressure hose 34 is also communicated with the inflating space, and the high-pressure container 50 can be inflated or decompressed through the high-pressure hose 34. In the embodiment, the thimble and the movable valve core are respectively arranged at the center positions of the filling and discharging sleeve and the self-sealing interface, so that the automatic operation of filling and discharging is realized, and the matched automatic system is convenient. When the pressurization or the pressure release is completed, the charging and discharging sleeve 31 is pulled away from the self-sealing interface 20, the ejector pin 32 gradually releases the movable valve core 21, the movable valve core 21 is reset under the action of the elastic force of the elastic piece 22, when the charging and discharging sleeve 31 is not separated from the self-sealing interface 20 and the ejector pin 32 is not abutted against the movable valve core 21 any more, the movable valve core 21 is completely reset at this time, the high-pressure container 50 is sealed again, the space between the charging and discharging head 30 and the self-sealing interface 20 is also sealed, and residual gas in the space can be pumped away through the high-pressure hose 34, so that the gas leakage loss is reduced.
Referring to fig. 2, a self-sealing port 20 of the present invention is schematically illustrated. The self-sealing interface 20 further comprises a valve seat 23, in order to realize the movement of the movable valve core 21 in the valve seat 23 and ensure that the inside of the high-pressure container 50 is communicated with the outside after the movable valve core 21 is released, a containing groove 231 for containing the movable valve core 21 and the elastic member 22 is arranged in a first end of the valve seat 23, the first end is sealed and inserted into an opening of the high-pressure container 50, a second end of the valve seat 23 is provided with an air port 232, the size of the air port 232 is smaller than that of the containing groove 231, two ends of the elastic member 22 are respectively abutted to the bottom of the movable valve core 21 and the opening of the high-pressure container 50, and the top of the movable valve core 21 is abutted to the lower surface of the air port 232. In this embodiment, the elastic member 22 is a spring, the movable valve core 21 can move along the axial direction of the accommodating groove 231, and when the movable valve core 21 is in a non-working state, the elastic member 22 pushes against the movable valve core 21 to make the movable valve core closely contact with the lower surface of the air port 232, and the movable valve core 21 seals the air port 232, so as to realize the sealing of the high-pressure container 50. Meanwhile, when high-pressure gas exists in the high-pressure container 50, the pressure direction generated by the high-pressure gas on the movable valve core 21 is consistent with the pressure direction of the spring force on the movable valve core 21, so that the movable valve core 21 is tightly pressed against the lower surface of the air port 232, and the self-sealing effect of the movable valve core 21 is ensured. In the first embodiment of the present invention, one valve seat 23 is provided, and the corresponding filling and discharging head 30 is provided, and the high-pressure hose 34 is connected to both the filling and discharging pipelines, and solenoid valves are provided on both the filling and discharging pipelines. In other embodiments of the present invention, two valve seats 23 may be further provided, two corresponding filling and discharging heads 30 are provided, and two high-pressure hoses 34 are respectively connected to the pressurizing pipeline and the pressure releasing pipeline, so that one is used for pressurizing, and the other is used for releasing pressure.
Further, since the elastic member 22 does not have directionality, the lower portion of the receiving groove 231 is provided to have the same size as the movable spool 21 in order to ensure that the movable spool 21 does not deviate when moving in the receiving groove 231. Thus, the movable valve element 21 can move only in the axial direction of the accommodating groove 231 due to the restriction of the accommodating groove 231, and no displacement can be generated. At this time, there is no gap between the accommodating groove 231 and the movable valve core 21, so that after the movable valve core 21 is pressed down, gas can flow through the self-sealing interface 20, an air passing space 24 is formed between the upper portion of the accommodating groove 231 and the movable valve core 21, a hollow groove 211 is formed in the lower portion of the movable valve core 21, and the hollow groove 211 is communicated with the air passing space 24 through an air passing hole 212. When the movable valve core 21 is pressed down and punched, gas enters the gas passing space 24 between the movable valve core 21 and the accommodating space through the space between the ejector pin 32 and the air port 232, then flows into the hollow groove 211 from the gas passing hole 212, further enters the high-pressure container 50, and flows out reversely when the pressure is released. In this embodiment, the air passing holes 212 are obliquely arranged to conform to the flow direction of the air, and increase the speed of the air flowing in and out.
Furthermore, in order to improve the sealing effect of the movable valve core 21 on the air port 232, the air port 232 extends downwards to form a sealing head 233, and a first sealing ring 25 is disposed at the top of the movable valve core 21 corresponding to the sealing head 233. As the movable valve core 21 presses against the lower surface of the air port 232, the sealing head 233 is completely contacted with the first sealing ring 25, the first sealing ring 25 is extruded and deformed, and the sealing head 233 is covered, so that complete sealing is realized. In this embodiment, to ensure the tight connection between the first sealing ring 25 and the movable valve core 21, a groove 213 is provided at the top of the movable valve core 21, the first sealing ring 25 is pressed in the groove 213 by a valve head 26, and the valve head 26 is locked with the top of the movable valve core 21. Thus, even if the first seal ring 25 is deformed by the seal head 233, the first seal ring 25 is still sandwiched between the valve head 26 and the movable valve element 21, and does not come off the movable valve element 21. Further, since the first sealing ring 25 is matched with the sealing head 233, the valve head 26 locking the first sealing ring 25 must be inserted into the air port 232 when the movable valve core 21 presses the lower surface of the air port 232, so that the valve head 26 is accurately inserted, the top of the valve head 26 is in a truncated cone shape capable of being inserted into the air port, and the side surface of the truncated cone can form an insertion guide.
Referring to fig. 3 and 4, in order to avoid the situation that the high-pressure container 50 can be inflated after the space between the inflation and deflation sleeve 31 and the self-sealing interface 20 is filled when the high-pressure hose 34 ventilates into the inflation and deflation sleeve 31, an inner hole 35 is arranged in the middle of the top surface of the inflation and deflation sleeve 31, the side hole 33 is communicated with the interior of the inflation and deflation sleeve 31 through the inner hole 35, the upper end of the thimble 32 is connected with the inner hole 35, and an air vent groove 36 is machined on the side surface of the thimble 32. So that the gas is flushed out of the high-pressure hose 34 into the side hole 33 to reach the top of the inner hole 35, and flows out of the clearance between the ejector pin 32 and the inner hole 35, namely out of the ventilation groove 36, and most of the gas enters the gas passing space 24 between the movable valve core 21 and the accommodation along the guide of the ventilation groove 36 from the position between the ejector pin 32 and the gas port 232, and then flows into the hollow groove 211 from the gas passing hole 212, and then enters the high-pressure container 50.
Referring to fig. 3, to connect the pushing assembly 40, an upper buckle cover 37 is disposed on the top of the charging and discharging sleeve 31, and the pushing assembly 40 is connected to the upper buckle cover 37. Avoiding affecting the sealed space inside the filling and discharging sleeve 31. In order to ensure the sealing of the space between the filling and discharging sleeve 31 and the self-sealing interface 20, a second sealing ring 38 is arranged on the inner side of the lower part of the filling and discharging sleeve 31, so as to realize the self-sealing of the filling and discharging sleeve 31. After the filling and discharging sleeve 31 is sleeved on the self-sealing interface 20, the second sealing ring 38 is extruded between the self-sealing interface 20 and the filling and discharging sleeve 31, so that the sealing of the two is ensured. For convenience, the second sealing ring 38 is installed in the filling and discharging sleeve 31, a sealing groove is formed in the inner periphery of the lower end of the filling and discharging sleeve 31, and the second sealing ring 38 is pressed in the sealing groove through the lower buckle cover 39. During installation, the second sealing ring 38 is clamped into the sealing groove, and then the lower buckle cover 39 is installed at the lower end of the charging and discharging sleeve 31 and locked, so that the second sealing ring 38 is installed more firmly.
Referring to fig. 4 and 5, since the filling and discharging sleeve 31 needs to cooperate with the self-sealing interface 20, in order to ensure that the self-sealing interface 20 is aligned and not deviated when the filling and discharging sleeve 31 is pressed down, the supporting frame 10 includes a first vertical plate 11, and a first mounting plate 12 and a second mounting plate 13 sequentially mounted on one side of the first vertical plate 11 from bottom to top, and the high-pressure container 50 is fixedly connected with the first mounting plate 12, so that the position of the self-sealing interface 20 inserted into the opening of the high-pressure container 50 is determined. A second vertical plate 14 is arranged between the first mounting plate 12 and the second mounting plate 13, a key slot 15 along the moving direction of the filling and discharging head 30 is arranged on the second vertical plate 14, and a key matched with the key slot 15 is arranged on the filling and discharging head 30. That is, the filling and discharging head 30 can only move in the key slot 15, and the movement direction of the filling and discharging head 30 is limited due to the guiding of the key slot 15, so that the matching of the filling and discharging head 30 and the self-sealing interface 20 is ensured.
Referring to fig. 1, in this embodiment, the pushing assembly 40 includes a driving member 41 and a push rod 42, and the push rod 42 is driven by the driving member 41 to move. Specifically, the driving member 41 may be various power devices such as a worm, an air cylinder, a hydraulic cylinder, etc., the ejector rod 42 may be an optical axis, the first vertical plate 11 is further provided with a third mounting plate 16, and the driving member 41 is fixed on the third mounting plate 16. The driving piece 41 can also be a servo driving motor, the ejector rod 42 is a threaded screw rod, a nut matched with the threaded screw rod is rotationally connected to the third mounting plate 16, the servo driving motor drives the nut to rotate, lifting of the threaded screw rod is achieved, at the moment, the ejector rod 42 is connected with the second mounting plate 13 through trapezoidal threads, and effective self-locking of axial movement can be achieved.
Referring to fig. 6, in operation of the present invention, the charging and discharging head 30 and the self-sealing interface 20 have three relative positions, namely, disengaged, half-disengaged and communicated;
at the beginning, the filling and discharging head 30 and the self-sealing interface 20 are at the disengaging position, and when the pressure needs to be filled or discharged, the driving piece 41 drives the ejector rod 42 to move up and down;
when the filling and discharging head 30 moves downwards to cover the self-sealing interface 20, the filling and discharging sleeve 31 and the valve seat 23 form a radial self-sealing seal through the second sealing ring 38, and the thimble 32 is not contacted with the movable valve core 21 at the moment and is in a semi-release state;
when the filling and discharging head 30 continues to move downwards, the thimble 32 pushes the movable valve core 21 open, and at the moment, the inside of the high-pressure container 50 is communicated with an external pipeline, and the pressure starts to be filled or discharged;
after the pressurization or the pressure release is completed, the charging and discharging head 30 moves upwards, the ejector pin 32 is loosened, the elastic piece 22 rebounds to drive the movable valve core 21 to press the first sealing ring 25, the self-sealing interface 20 is closed, the half-release state is returned, the residual gas in the charging and discharging head 30 is pumped out through the high-pressure hose 34, and the charging and discharging head 30 continues to move upwards to the release state after the completion.
The self-sealing pressurizing and pressure releasing device can realize automatic positioning by controlling the driving of the driving piece 41, improves the degree of automation, reduces the error of manual operation, simultaneously can suck residual gas in a pipeline in a half-release state, and reduces the gas leakage loss in the pipeline.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1. A self-sealing pressurizing and pressure-releasing device, comprising: the self-sealing connector comprises a movable valve core, and the filling and discharging head comprises a filling and discharging sleeve, a thimble, a pushing assembly and a high-pressure hose;
the middle part of the top surface of the charging and discharging sleeve is provided with an inner hole, the inside of the charging and discharging sleeve is communicated with the high-pressure hose through a side hole, the side hole is communicated with the inside of the charging and discharging sleeve through an inner hole, the upper end of the thimble is connected with the inner hole, and an air vent groove is formed in the side surface of the thimble;
the self-sealing interface comprises a valve seat, an air port is formed in the valve seat, a sealing head extends downwards along the lower edge of the air port, a first sealing ring is arranged at the top of the movable valve core at a position corresponding to the sealing head, and the sealing head is covered by the first sealing ring;
the movable valve core top is provided with a groove, the first sealing ring is pressed in the groove through a valve head, the valve head is locked with the movable valve core top, the valve head top is in a truncated cone shape capable of being inserted into the air port, and the side face of the valve head is abutted to the air port.
2. A self-sealing pressurizing and depressurizing device as defined in claim 1, wherein: the support frame is used for fixing a high-pressure container, the self-sealing interface is used for plugging an opening of the high-pressure container, the movable valve core is arranged in the self-sealing interface, the high-pressure container is sealed or released by the movable valve core, the charging and discharging sleeve is pushed and sleeved by the pushing component to be connected with the self-sealing interface, the pushing component is connected with the support frame, the high-pressure hose is communicated with the inside of the charging and discharging sleeve, and the thimble is arranged in the charging and discharging sleeve corresponding to the movable valve core.
3. A self-sealing pressurizing and depressurizing device as defined in claim 1, wherein: the self-sealing interface further comprises an elastic piece, a containing groove for containing the movable valve core and the elastic piece is formed in the first end of the valve seat, the first end is sealed and inserted into an opening of the high-pressure container, an air port is formed in the second end of the valve seat, the size of the air port is smaller than that of the containing groove, two ends of the elastic piece are respectively abutted to the bottom of the movable valve core and the opening of the high-pressure container, and the top of the movable valve core is abutted to the lower surface of the air port.
4. A self-sealing pressurizing and depressurizing device as defined in claim 3, wherein: the lower part of the accommodating groove is the same as the movable valve core in size, an air passing space is formed between the upper part of the accommodating groove and the movable valve core, a hollow groove is formed in the lower part of the movable valve core, and the hollow groove is communicated with the air passing space through an air passing hole.
5. A self-sealing pressurizing and depressurizing device as defined in claim 1, wherein: the top of the charging and discharging sleeve is provided with an upper buckle cover, the pushing component is connected with the upper buckle cover, and the inner side of the lower part of the charging and discharging sleeve is provided with a second sealing ring.
6. The self-sealing pressurizing and depressurizing device as defined in claim 5, wherein: the inner periphery of the lower end of the charging and discharging sleeve is provided with a sealing groove, and the second sealing ring is tightly pressed in the sealing groove through a lower buckle cover.
7. A self-sealing pressurizing and depressurizing device as defined in claim 2, wherein: the support frame include first riser, and follow supreme install in proper order in first mounting panel and the second mounting panel of first riser one side down, the high-pressure vessel with first mounting panel fixed connection, be provided with the second riser between first mounting panel and the second mounting panel, set up on the second riser along fill and leak first direction of movement's keyway, fill and leak be provided with on the head with keyway complex key.
8. A self-sealing pressurizing and depressurizing device as defined in claim 1, wherein: the pushing component comprises a driving piece and a push rod, and the push rod is driven by the driving piece to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111488884.6A CN114352744B (en) | 2021-12-07 | 2021-12-07 | Self-sealing pressurizing and pressure releasing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111488884.6A CN114352744B (en) | 2021-12-07 | 2021-12-07 | Self-sealing pressurizing and pressure releasing device |
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| Publication Number | Publication Date |
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| CN114352744A CN114352744A (en) | 2022-04-15 |
| CN114352744B true CN114352744B (en) | 2024-04-12 |
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| CN202111488884.6A Active CN114352744B (en) | 2021-12-07 | 2021-12-07 | Self-sealing pressurizing and pressure releasing device |
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| CN202217616U (en) * | 2011-08-05 | 2012-05-09 | 平高集团有限公司 | Aerating device used for breaker, and breaker utilizing the same |
| CN202501053U (en) * | 2011-12-23 | 2012-10-24 | 中国航天科技集团公司第六研究院第十一研究所 | Long-life redundancy seal gas charging valve |
| CN104565802A (en) * | 2014-12-31 | 2015-04-29 | 上海空间推进研究所 | High-pressure gas cylinder, and inflating sealing structure and inflating method thereof |
| CN106051237A (en) * | 2016-07-20 | 2016-10-26 | 江苏腾旋科技股份有限公司 | Snap valve |
| CN211042635U (en) * | 2019-08-12 | 2020-07-17 | 上海凡索金属制品有限公司 | Gas cylinder leakproofness detection device for gas cylinder production and processing |
| CN111734608A (en) * | 2020-07-29 | 2020-10-02 | 沈华燕 | Air nozzle structure of inflator pump |
| CN211924950U (en) * | 2020-01-03 | 2020-11-13 | 浙江他山流体控制科技有限公司 | Liquefied petroleum gas cylinder valve |
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2021
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| CN211042635U (en) * | 2019-08-12 | 2020-07-17 | 上海凡索金属制品有限公司 | Gas cylinder leakproofness detection device for gas cylinder production and processing |
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| CN114352744A (en) | 2022-04-15 |
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