CN116464811B - PV valve with bidirectional pressure relief function - Google Patents
PV valve with bidirectional pressure relief function Download PDFInfo
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- CN116464811B CN116464811B CN202310721058.4A CN202310721058A CN116464811B CN 116464811 B CN116464811 B CN 116464811B CN 202310721058 A CN202310721058 A CN 202310721058A CN 116464811 B CN116464811 B CN 116464811B
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- 230000002457 bidirectional effect Effects 0.000 title abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 77
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 230000001105 regulatory effect Effects 0.000 claims abstract description 38
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000006837 decompression Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/88—Replacing filter elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
- F16K17/194—Equalising valves predominantly for tanks weight-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
- F16K17/196—Equalising valves predominantly for tanks spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a PV valve with a bidirectional pressure relief function, which relates to the technical field of PV valves and comprises an external pipeline, wherein a lower shell mechanism is arranged at the top of the external pipeline, a filtering mechanism is fixedly arranged on the inner surface wall of the lower shell mechanism, a pressure regulating mechanism is arranged on the inner surface wall of the lower shell mechanism, an upper shell mechanism is arranged at the top of the lower shell mechanism, the pressure regulating mechanism comprises a regulating main body, a movable groove is formed in the center of the bottom of the inner wall of the regulating main body, and a movable rod is movably inserted into the inner surface wall of the movable groove. In use, the PV valve can realize automatic pressurization or pressure relief treatment under the action of the pressure regulating mechanism without manual operation, and in the process of increasing and relieving pressure of different equipment, the weight blocks are increased or decreased in the regulating main body and at the bottom of the sealing plate, so that the critical value of the device for increasing and relieving pressure can be effectively regulated when the device is used, and the use requirements of different equipment are met.
Description
Technical Field
The invention relates to the technical field of PV valves, in particular to a PV valve with a bidirectional pressure relief function.
Background
With the development of society, there is more and more gas, liquid to transport through pipeline, such as urban water supply pipeline, hydropower station water conduit, oil, natural gas pipeline etc. and long distance pipeline transportation often need to close the main valve when the operating mode changes, can lead to pressure in the sealed space to produce violent fluctuation when the main valve is closed, and the PV valve is the same as this moment, and the PV valve is also known as high-speed discharge pressure vacuum valve, and it is the pressure balance in the sealed space that the pressure valve, pressure valve and the three-in-one gravity type automatic control pressure air inlet unit of high-speed discharge device, its leakproofness has decided the security performance when raw materials are carried.
In the prior art, for example, chinese patent numbers: CN109611588B, providing a two-way relief valve, arranging a branch pipeline with a branch valve parallel to the main valve on the main pipeline, and connecting a plurality of relief chambers with relief valve plates in series on the branch pipeline; the pressure relief branch pipeline connected with the main pipeline in parallel is arranged, so that the function of assisting in bidirectional pressure relief and flattening after the main pipeline is closed is achieved; the decompression bin connected in series in the branch pipeline has the effect of buffering and decompressing; through the flexible pressure relief valve plate, certain deformation is generated when pressure impact is applied to the pressure relief valve plate so as to support liquid leakage; the working pressure of the decompression bin can be adjusted by adjusting the number of the decompression valve plates; the pressure is relieved in a progressive manner by the different spacing between the relief valve plates.
The device has the advantages that the device is simple in structure, small in size, small in use limit and high in reliability, and can effectively reduce and smooth the bidirectional water hammer pressure in a transportation pipeline, but the PV valve still has certain defects in use, firstly, when the pressure in a detection space is required to be released outwards due to the action of external force, the pressure release cannot be conveniently completed, secondly, when the pressure in a ballast tank is too low, the pressurization in a sealing device cannot be conveniently completed, the practicability is poor, and when the PV valve detects the pressure of different devices, the pressurization or the pressure release treatment is required according to the actual conditions, and the device has the limitation in use due to the unadjustability in the aspect.
Disclosure of Invention
The invention aims to provide a PV valve with a bidirectional pressure relief function, which solves the problems that the automatic pressure boosting or pressure relief treatment of equipment cannot be completed, and one critical value of the equipment per se cannot be effectively regulated for different equipment, so that the equipment has limitation in use.
In order to achieve the above purpose, the present invention provides the following technical solutions: the PV valve with the bidirectional pressure relief function comprises an external pipeline, wherein a lower shell mechanism is arranged at the top of the external pipeline, a filtering mechanism is fixedly arranged on the inner surface wall of the lower shell mechanism, a pressure regulating mechanism is arranged on the inner surface wall of the lower shell mechanism, and an upper shell mechanism is arranged at the top of the lower shell mechanism; the pressure regulating mechanism comprises a regulating main body, a movable groove is formed in the center of the bottom of the inner wall of the regulating main body, a movable rod is movably inserted into the inner surface wall of the movable groove, a pressure spring is movably sleeved on the outer surface wall of the movable rod, a sealing gasket is fixedly connected to the bottom of the movable rod, a sealing plate is fixedly sleeved on the outer surface wall of the sealing gasket, a first embedded groove is formed in the center of the bottom of the regulating main body, the outer surface wall of the sealing plate is movably inserted into the first embedded groove, a third sealing groove is formed in the top of the inner wall of the first embedded groove, a group of ventilation holes are formed in the top of the inner wall of the third sealing groove, a first threaded rod is fixedly inserted into the center of the bottom of the sealing plate, and a plurality of first weight blocks are movably sleeved on the outer surface wall of the threaded rod.
Preferably, the outer surface wall of the first threaded rod is rotatably connected with a first nut, a plurality of second threaded rods are fixedly inserted into the top of the inner wall of the adjusting main body, a plurality of second weight blocks are movably sleeved on the outer surface wall of the second threaded rods, and a plurality of second nuts are rotatably connected with the outer surface wall of the second threaded rods.
Preferably, the lower shell mechanism comprises a first shell body, a clamping groove is formed between inner surface walls of the first shell body, a group of holes II are formed in the top of the first shell body, and a first partition plate is fixedly connected to the top of the first shell body.
Preferably, the outer surface wall of the first shell body is fixedly connected with a connecting disc, a group of holes III are formed in the top of the connecting disc, locking mechanisms are movably inserted into the inner surface walls of the holes III, and a second sealing groove is formed in the bottom of the first shell body.
Preferably, the filtering mechanism comprises a fixing ring, two notches are formed in the bottom of the fixing ring, two fixing grooves are formed in the fixing ring, embedded blocks are movably inserted into the inner surface walls of the notches, the outer surface walls of the two embedded blocks are movably inserted into the fixing grooves, and a filtering cover is fixedly connected between the outer surface walls of the embedded blocks.
Preferably, the upper shell mechanism comprises a mounting ring, a group of holes IV are formed in the bottom of the mounting ring, nuts III are fixedly inserted into the inner surface walls of the holes IV, a group of screws I are rotatably connected to the inner surface walls of the nuts III, a group of embedded grooves II are formed in the outer surface walls of the mounting ring, and holes V are formed in one side of the inner wall of the embedded grooves II.
Preferably, the inner surface walls of the holes five are fixedly inserted with the nuts four, the inner surface walls of the embedded grooves two are movably inserted with embedded plates, the outer wall sides of the embedded plates are provided with the holes six, the inner surface walls of the holes six are movably inserted with the screws two, and the outer surface walls of the screws two are rotatably connected inside the nuts four.
Preferably, a group of fixedly mounted top cap between the top of inlaying the board, the bottom fixedly connected with baffle two of top cap, a group of inlay and establish equal fixedly connected with dust board between the board wherein every two exterior walls, and the bottom of four dust boards all contacts with the top of collar, through under the effect of four dust boards, can carry out effectual filtration to dust and the impurity that has in the outside air to the in-process of pressure boost, avoid it to enter into inside the equipment.
Preferably, the external pipeline comprises a first pipeline, the outer surface wall of the first pipeline is fixedly connected with a first flange, a first sealing groove is formed in the top of the first flange, a sealing ring is placed on the inner surface wall of the first sealing groove, and a first group of holes are formed in the top of the first flange.
Preferably, the outer surface walls of the group of locking mechanisms are movably inserted into the first hole, the outer surface walls of the sealing rings are movably inserted into the second sealing groove, the outer surface walls of the fixing rings are fixedly connected with the inner surface wall of the first shell main body, the outer surface walls of the adjusting main body are movably embedded into the clamping grooves, and the outer surface walls of the group of screws are movably inserted into the second hole.
Compared with the prior art, the invention has the beneficial effects that:
1. in the use of the invention, through the two-way pressure relief treatment of the PV valve under the action of the pressure regulating mechanism, under the cooperation of the regulating main body, the movable groove, the movable rod, the pressure spring, the sealing gasket and the sealing plate, when the positive pressure in the tank is overlarge and reaches a certain critical pressure value, the regulating main body and the linked components are jacked up by the pressure in the tank, the exhaust treatment is carried out at the gap where the regulating main body is connected with the clamping groove, the pressure relief is completed, when the negative pressure in the tank is overlarge, the movable rod, the sealing gasket and the sealing plate are pulled downwards by the negative pressure generated in the tank under the action of the external atmospheric pressure, so that a gap is formed, the external air enters into the tank body through a group of air holes, so that the air pressure is increased, the pressurization is completed.
2. According to the invention, in the process of automatically increasing and releasing pressure of the equipment under the action of the filtering mechanism and the upper shell mechanism, the dust and impurities in the air can be effectively filtered in the process of increasing and releasing pressure by the inner filtering cover and the four dust plates at the top, so that the dust is prevented from entering the PV valve, the service life of the equipment is prolonged, and the inner filtering cover is installed in an embedding and clamping mode, so that the filter core is convenient to replace.
3. In use, the device assembles the equipment in a connection mode of screws and nuts under the action of the external pipeline, the lower shell mechanism, the filtering mechanism, the pressure regulating mechanism and the upper shell mechanism, so that the whole equipment can be conveniently disassembled and maintained by later-stage staff.
Drawings
FIG. 1 is a perspective view of a cross-sectional structure in a PV valve with bi-directional pressure relief in accordance with the present invention;
FIG. 2 is a perspective view of a front view of a PV valve with bi-directional pressure relief in accordance with the present invention;
FIG. 3 is a plan view of the body mechanism in a PV valve with bi-directional pressure relief in accordance with the present invention;
FIG. 4 is a split view of an external conduit in a PV valve with bi-directional pressure relief in accordance with the present invention;
FIG. 5 is a cutaway exploded view of the lower housing mechanism in a PV valve with bi-directional pressure relief in accordance with the present invention;
FIG. 6 is a split view of a filter mechanism in a PV valve with bi-directional pressure relief in accordance with the present invention;
FIG. 7 is a cutaway exploded view of a pressure regulating mechanism in a PV valve with bi-directional pressure relief in accordance with the present invention;
FIG. 8 is a bottom exploded view of a pressure regulating mechanism in a PV valve with bi-directional pressure relief in accordance with the present invention;
fig. 9 is a cutaway exploded view of the upper housing mechanism in a PV valve with bi-directional pressure relief in accordance with the present invention.
In the figure: 1. externally connected pipelines; 101. a first pipeline; 102. a first flange plate; 103. a first seal groove; 104. a seal ring; 105. a first hole; 2. a lower shell mechanism; 201. a first housing main body; 202. a clamping groove; 203. a second hole; 204. a first partition board; 205. a connecting disc; 206. a third hole; 207. a locking mechanism; 208. sealing grooves II; 3. a filtering mechanism; 301. a fixing ring; 302. a notch; 303. a fixing groove; 304. embedding blocks; 305. a filter cover; 4. a pressure regulating mechanism; 401. an adjustment body; 402. a movable groove; 403. a movable rod; 404. a pressure spring; 405. a sealing gasket; 406. a sealing plate; 407. embedding a groove I; 408. sealing grooves III; 409. ventilation holes; 410. a first threaded rod; 411. a first weight block; 412. a first nut; 413. a second threaded rod; 414. a second weight block; 415. a second nut; 5. an upper shell mechanism; 501. a mounting ring; 502. a hole IV; 503. a third nut; 504. a first screw; 505. embedding a second groove; 506. a fifth hole; 507. a nut IV; 508. embedding a plate; 509. a hole six; 510. a second screw; 511. a second partition board; 512. a dust plate; 513. and a top cover.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: referring to fig. 1 to 9, the present invention provides a technical solution: the PV valve with the bidirectional pressure relief function comprises an external pipeline 1, wherein a lower shell mechanism 2 is arranged at the top of the external pipeline 1, a filtering mechanism 3 is fixedly arranged on the inner surface wall of the lower shell mechanism 2, a pressure regulating mechanism 4 is arranged on the inner surface wall of the lower shell mechanism 2, and an upper shell mechanism 5 is arranged at the top of the lower shell mechanism 2; the pressure regulating mechanism 4 comprises a regulating main body 401, a movable groove 402 is formed in the center of the bottom of the inner wall of the regulating main body 401, a movable rod 403 is movably inserted into the inner surface wall of the movable groove 402, a pressure spring 404 is movably sleeved on the outer surface wall of the movable rod 403, a sealing gasket 405 is fixedly connected to the bottom of the movable rod 403, a sealing plate 406 is fixedly sleeved on the outer surface wall of the sealing gasket 405, a first embedded groove 407 is formed in the center of the bottom of the regulating main body 401, the outer surface wall of the sealing plate 406 is movably inserted into the first embedded groove 407, a third sealing groove 408 is formed in the top of the inner wall of the first embedded groove 407, the outer surface wall of the sealing gasket 405 is movably inserted into the third sealing groove 408, a group of ventilation holes 409 are formed in the top of the inner wall of the third sealing groove 408, a first threaded rod 410 is fixedly inserted into the bottom center of the sealing plate 406, a plurality of first weighing blocks 411 are movably sleeved on the outer surface wall of the first threaded rod 410, a plurality of second threaded rods 413 are fixedly inserted into the top of the inner wall of the regulating main body 401, a plurality of second threaded rods 413 are movably sleeved with a plurality of second weighing blocks 414, and a plurality of second threaded rods 415 are rotatably connected with the second threaded rods 415; firstly, an upward pushing force to the movable rod 403 can be formed under the action of the pressure spring 404, through the action of the pushing force, the sealing gasket 405 and the sealing plate 406 at the bottom of the movable rod 403 can be driven to be movably embedded in the embedded groove I407 and the sealing groove III 408, when negative pressure is generated in the tank body, under the action of external atmospheric pressure, the movable rod 403, the sealing gasket 405 and the sealing plate 406 can be downwards moved by the negative pressure generated in the tank, so that external air enters into the tank body through a group of ventilation holes 409, the air pressure is increased, the pressurization is completed, and after the pressurization is completed, the pushing to the movable rod 403 is formed under the action of the pressure spring 404, so that the sealing gasket 405 and the sealing plate 406 at the bottom are movably embedded in the embedded groove I407 and the sealing groove III 408, the sealing state is kept, when the positive pressure in the tank is overlarge, and a certain critical pressure value is reached, the tank internal pressure can jack the regulating body 401 and the associated components, and further a gap is formed between the regulating body 401 and the clamping groove 202, the gap is formed, the automatic pressure releasing treatment is realized through the joint of the regulating body 401 and the clamping groove 202, and the manual pressure releasing operation is not needed.
Embodiment two: according to fig. 5-6, the lower shell mechanism 2 comprises a first shell main body 201, a clamping groove 202 is formed between inner surface walls of the first shell main body 201, a group of holes II 203 are formed in the top of the first shell main body 201, a partition plate I204 is fixedly connected to the top of the first shell main body 201, a connecting disc 205 is fixedly connected to the outer surface walls of the first shell main body 201, a group of holes III 206 are formed in the top of the connecting disc 205, a locking mechanism 207 is movably inserted into the inner surface walls of the group of holes III 206, a sealing groove II 208 is formed in the bottom of the first shell main body 201, the filtering mechanism 3 comprises a fixing ring 301, two notch 302 are formed in the bottom of the fixing ring 301, two fixing grooves 303 are formed in the inner surface walls of the fixing ring 301, embedded blocks 304 are movably inserted into the inner surface walls of the two notch 302, and a filtering cover 305 is fixedly connected between the outer surface walls of the two embedded blocks 304; firstly, before the equipment is connected, the filter cover 305 is moved to the inside of the equipment, the two embedded blocks 304 are kept to pass through the inside of the notch 302, the two embedded blocks 304 are clamped in the inside of the fixed ring 301, then a worker rotates the filter cover 305 again to keep the two embedded blocks 304 to rotate, after 90 degrees of rotation, the two embedded blocks 304 are kept to be clamped in the inside of the fixed groove 303, the clamping connection treatment between the filter cover 305 and the fixed ring 301 is realized, the fixed state between the filter cover 305 and the fixed ring 301 is kept, and the fixed ring 301 and the inner surface wall of the first shell body 201 are in the fixed connection state.
Embodiment III: according to fig. 4-9, the upper shell mechanism 5 comprises a mounting ring 501, a group of holes IV 502 are formed in the bottom of the mounting ring 501, nuts III 503 are fixedly inserted into inner surface walls of the group of holes IV 502, screws I504 are rotatably connected to inner surface walls of the group of nuts III 503, a group of embedded grooves II 505 are formed in outer surface walls of the mounting ring 501, holes IV 506 are formed in one side of inner walls of the group of embedded grooves II 505, nuts IV 507 are fixedly inserted into inner surface walls of the group of holes IV 506, embedded plates 508 are movably inserted into inner surface walls of the group of embedded grooves II 505, holes VI 509 are formed in one side of outer walls of the group of embedded plates 508, screws II 510 are movably inserted into inner surface walls of the group of holes VI, a group of screws II 510 are rotatably connected to the inner parts of the nuts IV 507, a top cover 513 is fixedly mounted between tops of the group of embedded plates 508, the bottom of the top cover 513 is fixedly connected with a second baffle 511, a group of embedded plates 508 are fixedly connected with dust plates 512 between every two outer surface walls, the bottoms of the four dust plates 512 are in contact with the top of the mounting ring 501, the external pipeline 1 comprises a first pipeline 101, the outer surface wall of the first pipeline 101 is fixedly connected with a first flange 102, the top of the first flange 102 is provided with a first sealing groove 103, the inner surface wall of the first sealing groove 103 is provided with a sealing ring 104, the top of the first flange 102 is provided with a group of holes 105, the outer surface walls of a group of locking mechanisms 207 are movably inserted in the holes 105, the outer surface walls of the sealing rings 104 are movably inserted in the second sealing groove 208, the outer surface wall of the fixing ring 301 is fixedly connected with the inner surface wall of the first shell body 201, the outer surface wall of the adjusting body 401 is movably embedded in the clamping groove 202, the outer surface walls of the first group of screws 504 are movably inserted into the second hole 203; firstly, a group of embedding plates 508 are movably embedded in the second embedding groove 505, after the embedding plates are completely embedded with each other, a group of holes six 509 and holes of a nut four 507 can be kept to be aligned, then a group of screws two 510 respectively penetrate between inner surface walls of the holes six 509 and are rotationally connected in the holes of the nut four 507 to generate threaded connection, extrusion between the three can be formed, and through the connection mode, fixed connection between the mounting ring 501 and the first shell body 201 can be kept.
The application method and the working principle of the device are as follows: after use, the external connection pipeline 1 is fixedly communicated with tank equipment, firstly, the equipment needs to be installed, before the equipment is connected, the filter cover 305 is moved to the inside of the equipment, the two embedded blocks 304 are respectively clamped in the fixing ring 301 through the inside of the notch 302, then, a worker rotates the filter cover 305 again to keep the two embedded blocks 304 to rotate by 90 degrees, the two embedded blocks 304 are respectively clamped in the inside of the fixing groove 303 after 90 degrees of rotation, the clamping connection treatment between the filter cover 305 and the fixing ring 301 is realized, the fixing state between the filter cover 305 and the fixing ring 301 is kept, the fixing ring 301 and the inner surface wall of the shell main body 201 are in the fixing connection state, in this way, the filter cover 305 can be firmly fixed in the inside of the lower shell mechanism 2, the sealing ring 104 is placed between the inner surface walls of the first sealing groove 103, the first shell body 201 is placed on the top of the first flange 102, the second sealing groove 208 can be clamped between the outer surface walls of the sealing ring 104, after the first sealing groove 105 and the third sealing groove 206 are contacted, the first sealing groove 105 is respectively aligned with the third sealing groove 206, the locking mechanism 207 is movably inserted between the inner surface walls of the first sealing groove 103 and the second sealing groove, the first flange 102 and the connecting disc 205 are extruded through the rotation of the inner part of the locking mechanism 207, the fixed state is finally maintained, the connection between the external pipeline 1 and the lower shell mechanism 2 is realized, the pressure regulating mechanism 4 (when different devices are used, one critical value of self pressure increase and pressure release is effectively regulated through the increase and decrease of the weight block in the inner part of the regulating body 401 and the bottom of the sealing plate 406) is placed between the inner surface walls of the clamping groove 202, the mounting ring 501 is placed on top of the first housing body 201, and the second set of holes 203 is aligned with the third set of nuts 503, because the third set of nuts 503 are fixed inside the mounting ring 501, when the first set of screws 504 are movably inserted between the inner surfaces of the second set of holes 203 and finally rotatably connected between the inner surfaces of the holes of the third set of nuts 503, connection between the lower housing mechanism 2 and part of the components in the upper housing mechanism 5 can be achieved, then the first set of embedding plates 508 are movably embedded inside the second embedding grooves 505, after the embedding is completed, the alignment treatment of the sixth set of holes 509 with the holes of the fourth set of nuts 507 can be maintained, then the second set of screws 510 are respectively penetrated between the inner surfaces of the sixth set of holes 509 and rotatably connected inside the holes of the fourth set of nuts 507, and are screwed with each other, extrusion between the three can be formed, the fixing connection between the mounting ring 501 and the first shell body 201 can be maintained, the mounting connection processing of the lower shell mechanism 2 and the upper shell mechanism 5 is completed, then the pressure inside the device is detected after the mounting, when the negative pressure is generated inside the tank body, under the action of the external atmospheric pressure, the negative pressure generated inside the tank can pull the movable rod 403, the sealing pad 405 and the sealing plate 406 to move downwards, so that the external air enters the tank body through a group of ventilation holes 409 to raise the air pressure, the pressurization is completed, and after the pressurization is completed, the pushing of the movable rod 403 is formed under the action of the pressure spring 404, so that the sealing pad 405 and the sealing plate 406 at the bottom are kept to be movably embedded inside the embedded groove one 407 and the sealing groove three 408, the sealing state of the connecting ports is kept, when the positive pressure inside the tank is overlarge and a certain critical pressure value is reached, the tank internal pressure can jack up the main body 401 and the linked components, and then a gap is formed between the main body 401 and the clamping groove 202, exhaust treatment is carried out at the gap part connected with the clamping groove 202 through the main body 401, pressure relief is completed, automatic pressurization or pressure relief treatment can be realized in such a way, manual operation is not needed, in-process of automatic pressurization and pressure relief is carried out on equipment, the filter cover 305 and the four dust plates 512 at the top can carry out effective filtration treatment on dust and impurities in gas in the process of pressurization and pressure relief, the dust is prevented from entering the inside of the PV valve, the occurrence of blocking is prevented, and the service life of the equipment is prolonged.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (7)
1. The utility model provides a PV valve with two-way pressure release function which characterized in that: the device comprises an external pipeline (1), wherein a lower shell mechanism (2) is arranged at the top of the external pipeline (1), a filtering mechanism (3) is fixedly arranged on the inner surface wall of the lower shell mechanism (2), a pressure regulating mechanism (4) is arranged on the inner surface wall of the lower shell mechanism (2), and an upper shell mechanism (5) is arranged at the top of the lower shell mechanism (2);
the pressure regulating mechanism (4) comprises a regulating main body (401), a movable groove (402) is formed in the center of the bottom of the inner wall of the regulating main body (401), a movable rod (403) is movably inserted into the inner surface wall of the movable groove (402), a pressure spring (404) is movably sleeved on the outer surface wall of the movable rod (403), a sealing pad (405) is fixedly connected with the bottom of the movable rod (403), a sealing plate (406) is fixedly sleeved on the outer surface wall of the sealing pad (405), a first embedding groove (407) is formed in the center of the bottom of the regulating main body (401), the outer surface wall of the sealing plate (406) is movably inserted into the first embedding groove (407), a third sealing groove (408) is formed in the top of the inner wall of the first embedding groove, a group of ventilation holes (409) are formed in the top of the inner wall of the third sealing groove (408), a first threaded rod (410) is fixedly inserted into the center of the bottom of the sealing plate (406), a plurality of threaded rods (502) are respectively inserted into a plurality of holes (501) of the inner surface blocks (501), a group of four holes (501) are formed in the inner surface blocks (502), a group of four-mounted holes (501) are respectively, the dust collector comprises a group of nut III (503) and is characterized in that screws I (504) are rotationally connected to the inner surface wall of the nut III (503), a group of embedded grooves II (505) are formed in the outer surface wall of the mounting ring (501), holes IV (506) are formed in one side of the inner wall of the embedded grooves II (505), nuts IV (507) are fixedly inserted into the inner surface wall of the holes IV (506), embedded plates (508) are movably inserted into the inner surface wall of the embedded grooves II (505), holes VI (509) are formed in one side of the outer wall of the embedded plates (508), screws II (510) are movably inserted into the inner surface wall of the holes VI (509), a group of screws II (510) are rotationally connected to the inner portion of the nut IV (507), a top cover (513) is fixedly installed between the tops of the embedded plates (508), a partition plate II (511) is fixedly connected to the bottom of the top cover (513), a group of the embedded plates (508) is fixedly connected with dust collector bodies (512), and dust collector bodies (512) are fixedly connected to the tops of the four dust collector bodies (512) of the dust collector bodies.
2. A PV valve with bi-directional pressure relief according to claim 1, wherein: the outer surface wall of the first threaded rod (410) is rotatably connected with a first nut (412), a plurality of second threaded rods (413) are fixedly inserted into the top of the inner wall of the adjusting main body (401), a plurality of second weight blocks (414) are movably sleeved on the outer surface wall of each second threaded rod (413), and a plurality of second nuts (415) are rotatably connected with the outer surface wall of each second threaded rod (413).
3. A PV valve with bi-directional pressure relief according to claim 2, wherein: the lower shell mechanism (2) comprises a first shell body (201), clamping grooves (202) are formed between inner surface walls of the first shell body (201), a group of holes II (203) are formed in the top of the first shell body (201), and a first partition plate (204) is fixedly connected to the top of the first shell body (201).
4. A PV valve with bi-directional pressure relief according to claim 3, wherein: the outer surface wall of the first shell body (201) is fixedly connected with a connecting disc (205), a group of holes III (206) are formed in the top of the connecting disc (205), a group of locking mechanisms (207) are movably inserted into the inner surface walls of the holes III (206), and a second sealing groove (208) is formed in the bottom of the first shell body (201).
5. The PV valve with bi-directional pressure relief according to claim 4, wherein: the filtering mechanism (3) comprises a fixed ring (301), two notches (302) are formed in the bottom of the fixed ring (301), two fixed grooves (303) are formed in the fixed ring (301), embedded blocks (304) are movably inserted into the inner surface walls of the notches (302), the outer surface walls of the embedded blocks (304) are movably inserted into the fixed grooves (303), and a filtering cover (305) is fixedly connected between the outer surface walls of the embedded blocks (304).
6. The PV valve with bi-directional pressure relief according to claim 5, wherein: the external pipeline (1) comprises a first pipeline (101), the outer surface wall of the first pipeline (101) is fixedly connected with a first flange plate (102), a first sealing groove (103) is formed in the top of the first flange plate (102), a sealing ring (104) is placed on the inner surface wall of the first sealing groove (103), and a first group of holes (105) are formed in the top of the first flange plate (102).
7. The PV valve with bi-directional pressure relief according to claim 6, wherein: the outer surface walls of the locking mechanism (207) are movably inserted into the first hole (105), the outer surface walls of the sealing ring (104) are movably inserted into the second sealing groove (208), the outer surface walls of the fixing ring (301) are fixedly connected with the inner surface wall of the first shell body (201), the outer surface walls of the adjusting body (401) are movably embedded into the clamping groove (202), and the outer surface walls of the first screw (504) are movably inserted into the second hole (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310721058.4A CN116464811B (en) | 2023-06-19 | 2023-06-19 | PV valve with bidirectional pressure relief function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310721058.4A CN116464811B (en) | 2023-06-19 | 2023-06-19 | PV valve with bidirectional pressure relief function |
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| Publication Number | Publication Date |
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| CN116464811A CN116464811A (en) | 2023-07-21 |
| CN116464811B true CN116464811B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310721058.4A Active CN116464811B (en) | 2023-06-19 | 2023-06-19 | PV valve with bidirectional pressure relief function |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116906598B (en) * | 2023-09-13 | 2023-11-24 | 江苏南极机械有限责任公司 | High-speed exhaust PV valve for ballast tank |
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| CN202972063U (en) * | 2012-11-26 | 2013-06-05 | 孔祥举 | Safety valve adjusted by gravity |
| CN204403482U (en) * | 2014-12-25 | 2015-06-17 | 徐燕 | A kind of inhalation valve |
| CN206770692U (en) * | 2017-05-25 | 2017-12-19 | 浙江南化防腐设备有限公司 | Acid and alkali-resistance anti-corrosion type breather valve |
| CN212657306U (en) * | 2020-05-27 | 2021-03-05 | 湖北华特专用设备有限公司 | A breather valve that is used for road transportation liquid tank vehicle anti-overflow to flow and prevents back-fire relief |
| CN112539289A (en) * | 2020-11-16 | 2021-03-23 | 江苏南极机械有限责任公司 | Two-way pressure release valve disc of PV valve |
| CN112539288A (en) * | 2020-11-16 | 2021-03-23 | 江苏南极机械有限责任公司 | PV valve for ballast tank |
| CN218523088U (en) * | 2022-08-23 | 2023-02-24 | 浙江爱乐石油设备制造有限公司 | Breather valve utilizing gravity to exhaust |
-
2023
- 2023-06-19 CN CN202310721058.4A patent/CN116464811B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202972063U (en) * | 2012-11-26 | 2013-06-05 | 孔祥举 | Safety valve adjusted by gravity |
| CN204403482U (en) * | 2014-12-25 | 2015-06-17 | 徐燕 | A kind of inhalation valve |
| CN206770692U (en) * | 2017-05-25 | 2017-12-19 | 浙江南化防腐设备有限公司 | Acid and alkali-resistance anti-corrosion type breather valve |
| CN212657306U (en) * | 2020-05-27 | 2021-03-05 | 湖北华特专用设备有限公司 | A breather valve that is used for road transportation liquid tank vehicle anti-overflow to flow and prevents back-fire relief |
| CN112539289A (en) * | 2020-11-16 | 2021-03-23 | 江苏南极机械有限责任公司 | Two-way pressure release valve disc of PV valve |
| CN112539288A (en) * | 2020-11-16 | 2021-03-23 | 江苏南极机械有限责任公司 | PV valve for ballast tank |
| CN218523088U (en) * | 2022-08-23 | 2023-02-24 | 浙江爱乐石油设备制造有限公司 | Breather valve utilizing gravity to exhaust |
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|---|---|
| CN116464811A (en) | 2023-07-21 |
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