CN113624423B - Pressure release explosion-proof valve gas tightness check out test set - Google Patents
Pressure release explosion-proof valve gas tightness check out test set Download PDFInfo
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- CN113624423B CN113624423B CN202111078828.5A CN202111078828A CN113624423B CN 113624423 B CN113624423 B CN 113624423B CN 202111078828 A CN202111078828 A CN 202111078828A CN 113624423 B CN113624423 B CN 113624423B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a pressure relief explosion-proof valve air tightness detection device, which is used for detecting the air tightness of a pressure relief explosion-proof valve and comprises the following components: pressurizing device, locking device and manometer. Wherein, the locking device includes: locking base, locking apron and work piece fixed plate. The locking base is provided with a pressure detection groove, and the groove wall of the pressure detection groove is provided with a water inlet hole and a pressure detection hole; the water delivery pipe is communicated with the pressure detection groove through the water inlet hole; the pressure gauge is communicated with the pressure detection groove through the pressure detection hole; the locking cover plate covers the locking base to seal the pressure detection groove; the locking cover plate is provided with a detection through hole, and the pressure relief explosion-proof valve is accommodated in the detection through hole. The bottom of the pressure detection groove is provided with an elastic gasket, and the workpiece fixing plate is pressed on the elastic gasket; the locking cover plate is fastened on the locking base through a fastener. The detection equipment can finish detection on the air tightness of the inner sealing ring, the outer sealing ring and the waterproof breathable film in one detection process.
Description
Technical Field
The invention relates to the technical field of air tightness detection equipment, in particular to pressure relief explosion-proof valve air tightness detection equipment.
Background
As shown in fig. 1, 2 and 3, the pressure relief explosion-proof valve 10 includes: valve body 11, pressure relief movable assembly 12 and positioning gland 13. An inner sealing ring 14 is arranged between the valve main body 11 and the pressure relief movable assembly 12, an outer sealing ring 15 is sleeved on the outer ring of the valve main body 11, and a waterproof and breathable film 16 is arranged between the pressure relief movable assembly 12 and the positioning gland 14.
In particular, as shown in fig. 4, when the pressure relief explosion-proof valve 10 is used, the pressure relief explosion-proof valve 10 is screwed to an external device (for example, the battery pack 20), and the pressure relief explosion-proof valve 10 and the battery pack 20 are connected to each other in an airtight manner by the outer seal ring 15.
Before the pressure relief explosion-proof valve 10 leaves the factory, it needs to be subjected to air tightness detection. For example: the tightness of the inner sealing ring 14 between the valve main body 11 and the pressure relief movable assembly 12 is detected, the tightness of the outer sealing ring 15 on the valve main body 11 is detected, and the tightness of the waterproof and breathable film 16 between the pressure relief movable assembly 12 and the positioning gland 14 is detected.
How to develop and design an air tightness detection device for the pressure relief explosion-proof valve 10, can complete detection on the air tightness of the inner sealing ring 14, the outer sealing ring 15 and the waterproof and breathable film 16 in one detection process, and is a technical problem to be solved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides pressure relief explosion-proof valve air tightness detection equipment, which can detect the air tightness of an inner sealing ring, an outer sealing ring and a waterproof breathable film in one detection process.
The aim of the invention is realized by the following technical scheme:
pressure release explosion-proof valve gas tightness check out test set for carry out the gas tightness to pressure release explosion-proof valve and detect, include: the pressure device, the locking device and the pressure gauge;
the pressurizing device is connected with the locking device through a water pipe, and the pressure gauge is used for reading the pressure inside the locking device.
In one embodiment, the locking device comprises: a locking base, a locking cover plate and a workpiece fixing plate;
the locking base is provided with a pressure detection groove, and the groove wall of the pressure detection groove is provided with a water inlet hole and a pressure detection hole; the water delivery pipe is communicated with the pressure detection groove through the water inlet hole; the pressure gauge is communicated with the pressure detection groove through the pressure detection hole;
the locking cover plate covers the locking base to seal the pressure detection groove;
the locking cover plate is provided with a detection through hole, the locking cover plate is provided with an upper pressing plane, the workpiece fixing plate is provided with a lower pressing plane, and the pressure relief explosion-proof valve is accommodated in the detection through hole and is positioned between the upper pressing plane and the lower pressing plane;
the bottom of the pressure detection groove is provided with an elastic gasket, the workpiece fixing plate is provided with a supporting plane, and the workpiece fixing plate is pressed and held on the elastic gasket through the supporting plane;
the locking cover plate is fastened on the locking base through a fastener.
In one embodiment, the fastening member is a screw, the locking cover plate is provided with a locking through hole, the locking base is provided with a threaded locking hole matched with the screw, and the screw is arranged through the locking through hole in a penetrating manner and is in threaded connection with the threaded locking hole.
In one embodiment, the screw is provided with an anti-seepage water pressure holding piece, and the anti-seepage water pressure holding piece is pressed and held at the locking through hole of the locking cover plate.
In one embodiment, the locking base is provided with a sealing ring.
In one embodiment, the pressure detection groove is of a cylindrical structure, the workpiece fixing plate is of a circular plate structure, and the diameter of the workpiece fixing plate is smaller than that of the pressure detection groove.
In one embodiment, the workpiece fixing plate is connected with the locking cover plate through screws.
In one embodiment, the locking base is provided with a water injection switch, and the pressure detection groove is communicated with the water pipe through the water injection switch.
In one embodiment, the elastic pad is a waterproof rubber structure.
In one embodiment, the pressurizing device comprises a water injection press and a fixed support, wherein the water injection press is arranged on the fixed support, and the water injection press is connected with the locking device through the water conveying pipe.
In summary, according to the pressure relief explosion-proof valve air tightness detection device, in the one-time detection process, the air tightness of the inner sealing ring, the outer sealing ring and the waterproof breathable film is detected, so that the detection time cost and the labor cost are saved, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a pressure relief explosion valve;
FIG. 2 is a top view of a pressure relief explosion valve;
FIG. 3 is a cross-sectional view of the pressure relief explosion valve A-A shown in FIG. 2;
FIG. 4 is a schematic diagram of the installation of the pressure relief explosion valve in use;
fig. 5 is a schematic structural diagram of a pressure relief explosion-proof valve air tightness detection device according to the present invention;
FIG. 6 is a schematic illustration of the engagement of the pressure relief explosion valve with the locking device;
FIG. 7 is a schematic exploded view of the closure shown in FIG. 6;
FIG. 8 is a schematic view of the structure of the fastener in this embodiment;
FIG. 9 is a schematic diagram showing the state of the locking device during detection;
fig. 10 is a schematic diagram showing the state of the pressure relief explosion-proof valve in the detection process.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 5, the present invention discloses a pressure relief explosion-proof valve air tightness detection device 30 for air tightness detection of a pressure relief explosion-proof valve 10, comprising: a pressurizing device 40, a locking device 50 and a pressure gauge 60. Wherein the pressurizing device 40 is connected with the locking device 50 through a water pipe 41 (shown in fig. 6), and the pressure gauge 60 is used for reading the pressure inside the locking device 50. As shown in fig. 6, in the air-permeability valve pressure-relief explosion-proof valve air-tightness detection device 30 of the present invention, whether the air-tightness of the pressure-relief explosion-proof valve 10 meets the production requirement is detected by using water pressure, when the air-tightness of the pressure-relief explosion-proof valve 10 is detected, a plurality of pressure-relief explosion-proof valves 10 in the same batch are placed in a locking device 50, a pressurizing device 40 is opened, the water pressure in the locking device 50 is increased to the detection pressure, and the air-tightness of the pressure-relief explosion-proof valve 10 is detected by observing the water seepage condition; after detection, the pressurizing device 40 stops pressurizing, the water pressure in the locking device 50 is reduced, and the pressure relief explosion-proof valve 10 of the batch is detached.
The air tightness detection device 30 for the pressure relief explosion-proof valve of the present invention detects the air tightness of the pressure relief explosion-proof valve 10 by the water pressure. As shown in fig. 6, the pressure relief explosion-proof valve 10 is partially immersed in water of the locking device 50, when the water pressure reaches the detection pressure, if the water at this time cannot permeate the inner sealing ring 14, the outer sealing ring 15 and the waterproof and breathable membrane 16, the pressure relief explosion-proof valve 10 is considered to be airtight in the subsequent use process, that is, the product function requirement of the pressure relief explosion-proof valve 10 is satisfied.
The specific structure of the pressure release explosion-proof valve air tightness detection device 30 of the present invention is described in detail below:
as shown in fig. 7, the locking device 50 includes: a locking base 100, a locking cover 200, and a workpiece fixing plate 300.
As shown in fig. 7, the locking base 100 is provided with a pressure detecting groove 110, and a water inlet 111 and a pressure detecting hole 112 are provided on the wall of the pressure detecting groove 110. The water pipe 41 is communicated with the pressure detection groove 110 through the water inlet hole 111; the pressure gauge 60 communicates with the pressure detection tank 110 through the pressure detection hole 112.
The latch cover 200 is covered on the latch base 100 to seal the pressure detection groove 110.
As shown in fig. 7, the locking cover 200 is provided with a detection through hole 210, the locking cover 200 has an upper pressing plane 201, the workpiece fixing plate 300 has a lower pressing plane 301, and the pressure relief explosion-proof valve 10 is accommodated in the detection through hole 210 and is located between the upper pressing plane 201 and the lower pressing plane 301.
The bottom of the pressure detection groove 110 is provided with an elastic gasket 113, the workpiece fixing plate 300 is provided with a supporting plane 302, and the workpiece fixing plate 300 is pressed on the elastic gasket 113 through the supporting plane 302;
the latch cover 200 is fastened to the latch base 100 by the fasteners 220.
During detection, the plurality of pressure relief explosion-proof valves 10 in the same batch are respectively inserted into the plurality of detection through holes 210, and the locking cover plate 200 and the plurality of pressure relief explosion-proof valves 10 are pressed on the workpiece fixing plate 300 together, so that the workpiece fixing plate 300 can be understood to be mounted on the locking cover plate 200; then, the locking cover 200 is pressed against the locking base 100, and the workpiece fixing plate 300 is pressed against the elastic pad 113, at this time, the pressure detecting groove 110 becomes a closed space, and a part of the structure of the pressure release explosion-proof valve 10 is located in the pressure detecting groove 110. The pressurization device 40 injects water into the pressure detection groove 110, so that the water pressure in the pressure detection groove 110 rises to the detection pressure, and a worker can judge whether the air tightness of the vent valve pressure relief explosion-proof valve 40 meets the production requirement by observing the water seepage condition of the detection through hole 210.
Note that the function of the work fixing plate 300 includes two aspects: on the one hand, during detection, the workpiece fixing plate 300 is used for fixing the pressure relief explosion-proof valve 10 accommodated in the detection through hole 210, so as to prevent the pressure relief explosion-proof valve 10 from being separated from the detection through hole 210 under the action of gravity; on the other hand, during detection, the workpiece fixing plate 300 is pressed against the elastic gasket 113, the elastic gasket 113 provides elastic supporting force for the workpiece fixing plate 300, and the workpiece fixing plate 300 transmits the supporting force to each pressure relief explosion-proof valve 10, so that the outer sealing ring 15 of the pressure relief explosion-proof valve 10 is tightly attached to the upper pressing-up supporting plane 201 of the locking cover plate 200, and the air tightness of the pressure relief explosion-proof valve 10 can be accurately detected.
In this embodiment, as shown in fig. 7, the fastening member 220 is a screw, the locking cover plate 200 is provided with a locking through hole 230, the locking base 100 is provided with a threaded locking hole 120 matched with the screw, and when in detection, the screw is threaded through the locking through hole 230 and is in threaded connection with the threaded locking hole 120, so that the locking of the locking cover plate 200 and the locking base 100 is achieved, and during the period, the pressing force between the locking cover plate 200 and the locking base 100 can be adjusted by the threaded degree of the screw and the threaded locking hole 120. Preferably, as shown in fig. 8, the screw is provided with an anti-seepage water pressure holding piece 221, and the anti-seepage water pressure holding piece 221 is pressed and held at the locking through hole 230 of the locking cover plate 200, so that the locking through hole 230 can be better sealed, and water is prevented from seeping out from a gap between the screw and the locking through hole 230 in the detection process, and the detection result of the pressure relief explosion-proof valve 10 is prevented from being influenced.
In the present embodiment, as shown in fig. 7, the pressure detection groove 110 has a cylindrical structure, the workpiece fixing plate 300 has a circular plate structure, and the diameter of the workpiece fixing plate 300 is smaller than the diameter of the pressure detection groove 110. Thus, at the time of detection, the water injected into the pressure detection groove 110 from the water inlet hole 111 can easily pass over the work fixing plate 300 and reach the pressure relief explosion valve 10.
It should be noted that, by tightly adhering the locking cover 200 to the locking base 100, on the one hand, water in the pressure detection groove 110 can be prevented from seeping out from the gap between the locking cover 200 and the locking base 100, so that the water pressure in the pressure detection groove 110 cannot reach the standard detection pressure; on the other hand, since the partial structure of the pressure relief explosion-proof valve 10 is accommodated in the detection through hole 210 and is located between the upper pressing plane 201 and the lower pressing plane 301, the locking cover plate 200 is tightly attached to the locking base 100, so that the outer sealing ring 15 of the pressure relief explosion-proof valve 10 can be tightly pressed against the upper pressing plane 201, and the accuracy and stability of detection are ensured. Specific detection procedures will be described below.
In this embodiment, as shown in fig. 5, the pressurizing device 40 includes a water injection press 42 and a fixing bracket 43, the water injection press 42 is mounted on the fixing bracket 43, the water injection press 42 is connected with the locking device 50 through a water pipe 41, that is, the water injection press 42 is communicated with the water inlet 111 of the pressure detection groove 110 through the water pipe 41.
The working principle of the pressure relief explosion-proof valve air tightness detection device 30 of the present invention will be described with reference to fig. 7 and 9:
in the detection process, firstly, a plurality of pressure relief explosion-proof valves 10 in the same batch are respectively accommodated in a plurality of detection through holes 210 and are positioned between an upper pressing plane 201 and a lower pressing plane 301; the workpiece fixing plate 300 is stably arranged on the locking cover plate 200 and is used for fixing the pressure relief explosion-proof valve 10 to prevent the pressure relief explosion-proof valve from being separated from the detection through hole 210; next, the locking cover 200 is locked to the locking base 100 by the screw, and at this time, the pressure relief explosion-proof valve 10 and the work fixing plate 300 are accommodated in the pressure detection groove 110, and the work fixing plate 300 is pressed against the elastic pad 113. Further, the water injection press 42 is started, water is injected into the pressure detection groove 110, the water pressure in the pressure detection groove 110 is increased to the detection pressure, and the pressure in the pressure detection groove 110 can be seen by the reading of the pressure gauge 60;
in this case, if the pressure relief explosion-proof valve 10 is a qualified product, the air tightness of the pressure relief explosion-proof valve 10 can ensure that water under the detection pressure cannot pass through the inner sealing ring 14, the outer sealing ring 15 and the waterproof and breathable membrane 16, so that water cannot leak out from the pressure relief explosion-proof valve 10 and the detection through hole 210; if the pressure relief explosion-proof valve 10 is an unqualified product, water under detection pressure passes through the inner sealing ring 14, the outer sealing ring 15 or the waterproof and breathable membrane 16, so that water seeps out from the pressure relief explosion-proof valve 10 or the detection through hole 210. The worker can judge whether the air tightness of the pressure relief explosion-proof valve 10 meets the production requirement by observing whether the pressure relief explosion-proof valve 10 and the detection through hole 210 are water permeable, namely, whether each pressure relief explosion-proof valve 10 is a qualified product. Then, the staff marks the pressure relief explosion-proof valve 10 corresponding to the water seepage, namely marks all unqualified pressure relief explosion-proof valves 10 in the batch;
after detection, the water injection press 42 is closed, the screw is twisted off, the locking cover plate 200 is separated from the locking base 100, and then the workpiece fixing plate 300 is separated from the locking cover plate 200, so that the pressure relief explosion-proof valve 10 can be separated from the detection through hole 210, finally, the marked pressure relief explosion-proof valve 10 is removed, and the rest pressure relief explosion-proof valves 10 are qualified products and are collected. If the pressure relief explosion-proof valve 10 of the next batch needs to be detected, the operation is only needed to be repeated.
It is to be noted that, as shown in fig. 10, the pressure relief explosion-proof valve air tightness detection device 30 of the present invention can also judge the specific problem of the air tightness of the pressure relief explosion-proof valve 10 by observing the difference of the water seepage positions. Specifically, when there is a problem in the air tightness of the inner seal ring 14, the water flow will ooze out through the path L1 shown in fig. 10, and the position of the water seepage observed by the worker is at the a of the pressure relief explosion-proof valve 10; when the air tightness of the outer seal ring 15 is problematic, water flows out through the path L2 shown in fig. 10, and the water seepage position observed by the worker is at the b of the pressure relief explosion-proof valve 10; when there is a problem in the air tightness of the waterproof and breathable membrane 16, water flows will ooze out through the path L3 shown in fig. 10, and the position of the water seepage observed by the worker is at c of the pressure relief explosion valve 10. In this way, in the detection process, a worker can judge the specific problem of the air tightness of the pressure relief explosion-proof valve 10 according to the difference of the water seepage positions, thereby providing convenience for the follow-up work of discovering the defects of the production and processing steps, repairing the pressure relief explosion-proof valve 10 with problems and the like.
It should be emphasized that, as shown in fig. 10, the pressure relief explosion-proof valve air tightness detection device 30 of the present invention can detect the air tightness of the inner seal ring 14, the outer seal ring 15 and the waterproof and breathable film 16 at the same time in a single detection process. The pressure of the water in the pressure detection groove 110 is equal everywhere in the detection process, so that the water pressures received by the inner sealing ring 14, the outer sealing ring 15 and the waterproof and breathable film 16 are equal although the detection positions are different, and if the water under the detection pressure still cannot pass through, the pressure relief explosion-proof valve 10 can be considered to keep air tightness in the later use process, namely, the pressure relief explosion-proof valve is a qualified product. Therefore, the inner sealing ring 14, the outer sealing ring 15 and the waterproof and breathable film 16 of the pressure relief explosion-proof valve 10 can be detected simultaneously only through one-time operation, so that the time cost and the labor cost of detection are saved, and the working efficiency is improved.
It is further noted that, as shown in fig. 9, the pressure relief explosion-proof valve tightness detection device 30 of the present invention can implement batch detection, and the detection device can detect several pressure relief explosion-proof valves 10 at the same time. After the locking cover plate 200 is locked with the locking base 100, the workpiece fixing plate 300 is pressed against the elastic gasket 113, and the pressure relief explosion-proof valve 10 is accommodated in the detection through hole 210 and is located between the upper pressing plane 201 and the lower pressing plane 301. In this way, the workpiece fixing plate 300 can uniformly transfer the supporting force provided by the elastic gasket 113 lock to each pressure relief explosion-proof valve 10, so that the degree of the pressing of the outer sealing ring 15 of each pressure relief explosion-proof valve 10 and the locking cover plate 200 is basically the same, and the water pressure in the pressure detection groove 110 is equal everywhere, so that the detection environment of each pressure relief explosion-proof valve 10 is ensured to be consistent, and the detection requirements are met.
In one embodiment, as shown in fig. 7, a sealing ring 130 is disposed on the locking base 100, and the sealing ring 130 is disposed on the periphery of the pressure detection groove 110, so that when the locking cover 200 is locked with the locking base 100, the locking cover 200 and the sealing ring 130 cooperate to better seal the pressure detection groove 110, so as to avoid water in the pressure detection groove 110 from seeping out from a gap between the locking cover 200 and the locking base 100, and the water pressure in the pressure detection groove 110 cannot meet the detection requirement.
In one embodiment, as shown in fig. 7, the workpiece fixing plate 300 is connected to the locking cover plate 200 through screws (not shown), the workpiece fixing plate 300 is provided with positioning holes 303, the locking cover plate 200 is provided with screw holes (not shown), and the screws pass through the positioning holes 303 to be screwed with the screw holes, so that the workpiece fixing plate 300 is mounted on or separated from the locking cover plate 200, and thus, the requirement that the workpiece fixing plate 300 is mounted on or separated from the locking cover plate 200 conveniently can be realized.
In one embodiment, as shown in fig. 7, the lock base 100 is provided with a water injection switch 140, and the pressure detection groove 110 communicates with the water pipe 41 through the water injection switch 140. The connection between the pressure detecting tank 110 and the water injection press 42 can be quickly cut off or communicated by the worker through the water injection switch 140, thereby facilitating the related operation of the worker before and after the detection.
In one embodiment, the elastic pad 113 is of a waterproof rubber structure, so that on one hand, the elastic pad 113 is guaranteed to have certain elasticity, enough supporting force can be provided for the workpiece fixing plate 300, and the workpiece fixing plate 300 is not damaged; on the other hand, the waterproof rubber structure is more suitable for long-term immersion in water, and the service life of the elastic pad 113 can be improved.
In summary, the pressure relief explosion-proof valve air tightness detection device 10 of the invention can complete detection of the air tightness of the inner sealing ring 14, the outer sealing ring 15 and the waterproof and breathable film 16 in one detection process, thereby saving detection time cost and labor cost and improving working efficiency.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. The utility model provides a pressure release explosion-proof valve gas tightness check out test set for carry out the gas tightness to pressure release explosion-proof valve, its characterized in that includes: the pressure device, the locking device and the pressure gauge;
the pressurizing device is connected with the locking device through a water pipe, and the pressure gauge is used for reading the internal pressure of the locking device;
the locking device comprises: a locking base, a locking cover plate and a workpiece fixing plate;
the locking base is provided with a pressure detection groove, and the groove wall of the pressure detection groove is provided with a water inlet hole and a pressure detection hole; the water delivery pipe is communicated with the pressure detection groove through the water inlet hole; the pressure gauge is communicated with the pressure detection groove through the pressure detection hole;
the locking cover plate covers the locking base to seal the pressure detection groove;
the locking cover plate is provided with a detection through hole, the locking cover plate is provided with an upper pressing plane, the workpiece fixing plate is provided with a lower pressing plane, and the pressure relief explosion-proof valve is accommodated in the detection through hole and is positioned between the upper pressing plane and the lower pressing plane;
the bottom of the pressure detection groove is provided with an elastic gasket, the workpiece fixing plate is provided with a supporting plane, the workpiece fixing plate is pressed on the elastic gasket through the supporting plane, and the diameter of the workpiece fixing plate is smaller than that of the pressure detection groove;
the locking cover plate is fastened on the locking base through a fastener.
2. The pressure relief explosion-proof valve air tightness detection device according to claim 1, wherein the fastening piece is a screw, the locking cover plate is provided with a locking through hole, the locking base is provided with a threaded locking hole matched with the screw, and the screw is arranged through the locking through hole in a penetrating manner and is in threaded connection with the threaded locking hole.
3. The pressure relief explosion-proof valve air tightness detection device according to claim 2, wherein an anti-seepage water pressure holding piece is arranged on the screw rod and is pressed and held at a locking through hole of the locking cover plate.
4. The pressure relief explosion valve tightness detection device according to claim 1, wherein a cover sealing ring is arranged on the locking base.
5. The pressure relief explosion valve tightness detection device according to claim 1, wherein the pressure detection groove is of a cylindrical structure, and the workpiece fixing plate is of a circular plate structure.
6. The pressure relief explosion valve tightness detection device according to claim 1, wherein the workpiece fixing plate is connected with the locking cover plate through screws.
7. The pressure relief explosion-proof valve air tightness detection device according to claim 1, wherein the locking base is provided with a water injection switch, and the pressure detection groove is communicated with the water pipe through the water injection switch.
8. The pressure relief explosion-proof valve air tightness detection device according to claim 1, wherein the elastic gasket is of a waterproof rubber structure.
9. The pressure relief explosion-proof valve air tightness detection device according to claim 1, wherein the pressurizing device comprises a water injection press and a fixed support, the water injection press is arranged on the fixed support, and the water injection press is connected with the locking device through the water pipe.
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| CN202111078828.5A CN113624423B (en) | 2021-09-15 | 2021-09-15 | Pressure release explosion-proof valve gas tightness check out test set |
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| CN202111078828.5A CN113624423B (en) | 2021-09-15 | 2021-09-15 | Pressure release explosion-proof valve gas tightness check out test set |
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| CN113624423B true CN113624423B (en) | 2023-08-04 |
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