CN210517574U - Pressure relief device of gas-filled cabinet - Google Patents
Pressure relief device of gas-filled cabinet Download PDFInfo
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- CN210517574U CN210517574U CN201921562580.8U CN201921562580U CN210517574U CN 210517574 U CN210517574 U CN 210517574U CN 201921562580 U CN201921562580 U CN 201921562580U CN 210517574 U CN210517574 U CN 210517574U
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- cabinet body
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- hole
- pressure relief
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Abstract
The utility model relates to an air inflation cabinet pressure relief device, which belongs to the field of air inflation cabinets and comprises a cabinet body, wherein the cabinet body is of an airtight structure, the side wall of the cabinet body is provided with a pressure relief opening, the cabinet body is also provided with a pressure ring, the pressure ring is arranged around the pressure relief opening, a spacer is arranged between the pressure ring and the pressure relief opening, and the edge of the spacer is positioned at the inner side of the orthographic projection of the pressure ring; still be provided with a plurality of screw holes on the cabinet body, the screw hole encircles the pressure release mouth sets up, the clamping ring corresponds the screw hole is provided with the through-hole, the clamping ring is fixed on the cabinet body through the fastening bolt who passes through-hole and screw hole, just the spacer is located and encircles the inboard of a plurality of screw holes that the pressure release mouth set up. The utility model discloses can effectively prevent to aerify the cabinet body structure of cabinet and receive destruction.
Description
Technical Field
The utility model relates to an aerify the cabinet field, in particular to aerify cabinet pressure relief device.
Background
The gas-filled cabinet can cause a loop short-circuit fault due to short circuit, insulation aging or manual misoperation in the operation process, high-temperature high-pressure gas can be generated in the cabinet instantly under the short-circuit current of tens of thousands of amperes, if the high-temperature high-pressure gas cannot be effectively released in a short time in a narrow cabinet body, the gas-filled cabinet can be cracked, adjacent gas-filled cabinets are damaged, and the personal safety can be possibly injured, so that the gas-filled cabinet needs effective pressure relief measures to discharge the high-temperature high-pressure gas accumulated in the cabinet body.
The utility model discloses a chinese utility model patent that the grant bulletin number is CN206076747U, and the grant bulletin date is 2017.04.05 has announced the pressure release structure of cubical switchboard, and in the technical scheme of this utility model, it is fixed with the plastic bolt on one side of the pressure relief board, the opposite side uses metal hinge or spring hinge to fix, when breaking the pressure relief board at high temperature high pressure, because there is hinged joint on one side, the pressure relief board can overturn and open, can not wholly drop even warp the breakage. But the pressure relief board is fixed with the plastic bolt on one side, and in the cable chamber, because the heat effect of electric current, the temperature is maintained at a higher temperature in the cable chamber all the time, and the temperature rise can make the plastic bolt aggravate ageing, and the easy inefficacy, intensity descends, breaks down electric arc in the cable chamber, but high temperature atmospheric pressure rise range is less, but the plastic bolt that intensity descends can't provide great joint strength, and less high temperature atmospheric pressure in the cable chamber will push away the pressure relief board. Therefore, the service life of the inflatable cabinet can be reduced by using the plastic bolt for a long time.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide an aerify cabinet pressure relief device, the intelligent cabinet temperature adjusting device comprises a cabinet body, the cabinet body is airtight structure, the pressure release mouth has been seted up on the lateral wall of the cabinet body, still be provided with the clamping ring on the cabinet body, the clamping ring encircles the pressure release mouth sets up, the clamping ring with be provided with the spacing block between the pressure release mouth, just the edge of spacing block is located the orthographic projected inboard of clamping ring.
Wherein, be provided with on the cabinet body and be used for the inflatable structure of cabinet body gas-filled and be used for the wire to pass with the sealed connection structure of wire sealing connection.
The utility model discloses in, the spacer is compressed tightly by the clamping ring and touches at the pressure release mouth and cover the pressure release mouth and with the sealed cooperation of the cabinet body part around the pressure release mouth to reach the purpose of the leakproofness of the assurance cabinet body.
When the circuit in the gas-filled cabinet has faults of short circuit, grounding and the like, high-pressure gas generated in the gas-filled cabinet can generate pressure on the inner side wall and the isolating sheet of the cabinet body, and because the rigidity and the strength of the isolating sheet are lower than those of the side wall of the gas-filled cabinet, the isolating sheet can deform before the side wall of the gas-filled cabinet, and the contact part of the deformed isolating sheet and the cabinet body can generate a gap due to deformation, and the gas in the gas-filled cabinet can be discharged through the gap to reduce the gas pressure in the gas-filled cabinet, so that the high-pressure gas in the gas-filled cabinet is prevented from damaging the structure of the gas-filled cabinet, and the purpose of protecting.
Additionally, the utility model provides an edge of spacing block is located the orthographic projection of clamping ring on the cabinet body, then in aerifing the cabinet internal gas pressure value promote fast, atmospheric pressure is big, when the thrust that the spacing block bore is big, the edge of spacing block can be when the spacing block is promoted by high-pressure gas, the partial edge of spacing block can be pulled out fast between clamping ring and the cabinet body for great hole appears on the cabinet body, thereby fast for aerifing the cabinet pressure release, avoid the air cabinet pressure release too slowly and lead to aerifing the structure of cabinet impaired.
Wherein the adaptability adjustment can be made according to the material and the specification of the cabinet body to the pressure of holding strip to the assurance before the cabinet body takes place deformation when aerifing the cabinet internal gas pressure and increasing, the holding strip can be promoted by gas and is pulled out between the holding strip and the cabinet body to partial edge, forms great hole on the cabinet body, when guaranteeing simultaneously that the atmospheric pressure of aerifing the cabinet in is in normal range, the holding strip can compress tightly the holding strip, avoids appearing the external clearance passageway of intercommunication between holding strip and the cabinet body.
Further, still be provided with a plurality of screw holes on the cabinet body, the screw hole encircles the pressure release mouth sets up, the clamping ring corresponds the screw hole is provided with the through-hole, the clamping ring is fixed on the cabinet body through the fastening bolt who passes through-hole and screw hole, just the spacer is located and encircles the inboard of a plurality of screw holes that the pressure release mouth set up.
The utility model provides a clamping ring adopts bolt structural installation on the cabinet body, and fastening bolt adopts the general stainless steel material in this field, compares in the plastic bolt, and the fastening bolt's of this application heat resistance is better, and it hardly receives the influence of the temperature of aerifing the normal studio of cabinet, consequently the utility model discloses a life is longer.
Wherein, the spacing block is located the inboard of the annular structure that several screwed orifices formed to avoid the spacing block to hinder fastening bolt's installation.
Further, the through-hole is the shoulder hole, the shoulder hole is including keeping away from in proper order the connecting hole and the spacing hole that the cabinet body set up, connecting hole and spacing hole set up with the central line just the diameter of connecting hole is less than the diameter of spacing hole, the bottom of spacing hole is provided with the spring.
After the fastening bolt is arranged in the threaded hole, the bolt head of the fastening bolt is pressed on the spring, and the spring generates a reaction force on the fastening bolt, so that the bolt is prevented from loosening in a working chamber of the inflatable cabinet, and the principle of the fastening bolt is similar to that of a spring washer; in addition, the elasticity of the spring can ensure that the spacer still can be pressed on the fastening bolt to fix the fastening bolt after being stretched and thinned, so that the situation that the fastening bolt loosens in the process of pressure relief of the inflatable cabinet to cause the pressure ring to be separated from the cabinet body is avoided, and potential safety hazards are avoided.
Further, the clamping ring set up in the outside of the cabinet body, the inboard edge of clamping ring is located the outside of pressure release mouth, the cabinet body is close to one side of spacer still is provided with annular mounting groove, the mounting groove encircles the pressure release mouth sets up just the mounting groove is located be close to in the orthographic projection of clamping ring one side of pressure release mouth, be provided with the sealing washer in the mounting groove.
After the compression ring compresses the spacing block, the spacing block is in close contact with the sealing ring protruding out of the mounting groove, so that the purpose of sealing and matching the spacing block with the cabinet body is achieved.
The clamping ring sets up the outside at the cabinet body, the inboard edge of clamping ring is located the outside at the edge of pressure release mouth, the outside that makes the spacer that is located near the pressure release mouth does not receive the support of clamping ring, when can guaranteeing to inflate cabinet internal gas pressure grow, the spacer that is located near the pressure release mouth can separate certain distance with the cabinet body near one side of cabinet body, and simultaneously, the mounting groove is located the one side that is close to the pressure release mouth in the orthographic projection of clamping ring on the cabinet body, wherein, the mounting groove has certain distance with the edge of the orthographic projection of clamping ring on the cabinet body, this distance is preferably 1.5-2.5 times of the thickness of spacer, then when the spacer that is located near the pressure release mouth is close to one side of the cabinet body can separate certain distance with the cabinet body, can make the inner space and the mounting groove intercommunication of the cabinet body, thereby further guarantee to form effectual.
Further, the spacing sheet is a stainless steel sheet.
The stainless steel has high strength and good air tightness.
Furthermore, a guide groove is formed in one side, far away from the inner side of the cabinet body, of the isolation sheet.
Guiding groove processing is kept away from one side of the cabinet body at the stainless steel spacing block, then increases suddenly to very big, when reaching the degree that can break the spacing block in aerifing the cabinet atmospheric pressure, because the existence of guiding groove, the spacing block can not torn into a plurality of fritters for splitting along the guiding groove to eliminate the potential safety hazard, wherein, the required pressure range who bears of spacing block can be looked to the specification of spacing block and specifically set up.
The principle and effect of the present invention will be further explained by combining the above technical solutions:
the utility model discloses in, the rigidity and the intensity of spacing block all are less than the lateral wall of aerifing the cabinet, therefore the spacing block can warp prior to the lateral wall of aerifing the cabinet, and the spacing block after warping can produce the clearance because of warping with the contact site of the cabinet body, aerify the gaseous atmospheric pressure that can reduce in the cabinet of aerifing through this clearance escape in the cabinet to avoid aerifing the high-pressure gas destruction in the cabinet and aerify the structure of cabinet, in order to reach the protection and aerify the purpose of cabinet.
Drawings
Fig. 1 is a schematic cross-sectional structure view of a pressure relief device according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of fig. 1.
Description of reference numerals:
1-cabinet body, 11-pressure relief opening, 12-threaded hole, 13-mounting groove, 131-sealing ring, 2-pressing ring, 211-connecting hole, 212-limiting hole, 22-spring and 3-spacer.
Detailed Description
To facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples:
as shown in fig. 1-2, an aerify cabinet pressure relief device, includes the cabinet body 1, the cabinet body 1 is airtight structure, pressure release port 11 has been seted up on the lateral wall of the cabinet body 1, still be provided with clamping ring 2 on the cabinet body 1, clamping ring 2 encircles pressure release port 11 sets up, clamping ring 2 with be provided with spacing block 3 between the pressure release port 11, just the edge of spacing block 3 is located the orthographic projected inboard of clamping ring 2.
Wherein, be provided with on the cabinet body 1 and be used for the inflatable structure of cabinet body 1 inflation and be used for the wire to pass with the sealed connection structure of wire sealing connection.
The utility model discloses in, the spacing block 3 is compressed tightly by clamping ring 2 and touches at pressure release mouth 11 and cover pressure release mouth 11 and with the sealed cooperation of 1 part of the cabinet body around the pressure release mouth 11 to reach the purpose of the leakproofness of the assurance cabinet body 1.
When the circuit in the gas-filled cabinet has faults of short circuit, grounding and the like, high-pressure gas generated in the gas-filled cabinet can generate pressure on the inner side wall of the cabinet body 1 and the isolating sheet 3, and because the rigidity and the strength of the isolating sheet 3 are lower than those of the side wall of the gas-filled cabinet, the isolating sheet 3 can deform before the side wall of the gas-filled cabinet, a gap can be generated between the deformed isolating sheet 3 and the cabinet body 1 due to deformation, the gas in the gas-filled cabinet can be discharged through the gap to reduce the pressure in the gas-filled cabinet, so that the high-pressure gas in the gas-filled cabinet is prevented from damaging the structure of the gas-filled cabinet, and the purpose of protecting the gas-filled cabinet.
Additionally, the utility model provides an edge of spacer 3 is located the orthographic projection of clamping ring 2 on the cabinet body 1, then it is fast, atmospheric pressure is big, the thrust that spacer 3 bore is big in inflating the cabinet, the edge of spacer 3 can be when spacer 3 is promoted by high-pressure gas, the partial edge of spacer 3 can be pulled out fast between clamping ring 2 and the cabinet body 1, great hole appears on the cabinet body 1, thereby be fast for inflating the cabinet pressure release, avoid the air cabinet pressure release too slowly and lead to inflating the structure of cabinet impaired.
Wherein the adaptability adjustment can be made to the pressure of clamping ring 2 to the spacing block 3 according to the material and the specification of the cabinet body 1, before guaranteeing that the cabinet body 1 takes place deformation when aerifing the cabinet internal gas pressure and increasing, spacing block 3 can be promoted to partial edge by gas and is pulled out between clamping ring 2 and the cabinet body 1, form great hole on the cabinet body 1, when guaranteeing simultaneously that the atmospheric pressure of aerifing the cabinet is in normal range, clamping ring 2 can compress tightly spacing block 3, avoid appearing the external clearance passageway of intercommunication between spacing block 3 and the cabinet body 1.
One of them embodiment, still be provided with a plurality of screw holes 12 on the cabinet body 1, screw hole 12 encircles pressure release port 11 sets up, clamping ring 2 corresponds screw hole 12 is provided with the through-hole, clamping bolt that clamping ring 2 passes through-hole and screw hole 12 is fixed on the cabinet body 1, just spacing block 3 is located and encircles the inboard of a plurality of screw holes 12 that pressure release port 11 set up.
The utility model provides a clamping ring 2 adopts bolt construction to install on the cabinet body 1, and fastening bolt adopts the general stainless steel material in this field, compares in the plastic bolt, and the fastening bolt's of this application heat resistance is better, and it hardly receives the influence of the temperature of aerifing the normal studio of cabinet, consequently the utility model discloses a life is longer.
Wherein, the spacing block 3 is located at the inner side of the annular structure formed by the plurality of threaded holes 12 so as to avoid the spacing block 3 from obstructing the installation of the fastening bolt.
One of them embodiment, the through-hole is the shoulder hole, the shoulder hole is including keeping away from in proper order connecting hole 211 and spacing hole 212 that the cabinet body 1 set up, connecting hole 211 and spacing hole 212 set up with the central line just the diameter of connecting hole 211 is less than the diameter of spacing hole 212, the bottom of spacing hole 212 is provided with spring 22.
After the fastening bolt is installed in the threaded hole 12, the bolt head of the fastening bolt is pressed against the spring 22, and the spring 22 generates a reaction force on the fastening bolt, so that the bolt is prevented from loosening in the working chamber of the gas-filled cabinet, and the principle is similar to that of a washer of the spring 22; in addition, the elasticity of the spring 22 can ensure that the spacer 3 can still be pressed on the fastening bolt after being stretched and thinned so as to fix the fastening bolt, and the situation that the compression ring 2 is separated from the cabinet body 1 due to looseness of the fastening bolt in the process of pressure relief of the inflatable cabinet is avoided, so that potential safety hazards are avoided.
One of them embodiment, clamping ring 2 set up in the outside of the cabinet body 1, the inboard edge of clamping ring 2 is located the outside of pressure release port 11, the cabinet body 1 is close to one side of spacer 3 still is provided with annular mounting groove 13, mounting groove 13 encircles pressure release port 11 sets up just mounting groove 13 is located be close to in the orthographic projection of clamping ring 2 one side of pressure release port 11, be provided with sealing washer 131 in the mounting groove 13.
Wherein, behind clamping ring 2 compressed tightly spacing block 3, spacing block 3 and outstanding mounting groove 13's sealing washer 131 in close contact with to reach spacing block 3 and the sealed complex purpose of cabinet body 1.
The press ring 2 is arranged at the outer side of the cabinet body 1, the edge of the inner side of the press ring 2 is positioned at the outer side of the edge of the pressure relief opening 11, so that the outer side of the isolation sheet 3 near the pressure relief opening 11 is not supported by the compression ring 2, when the air pressure in the inflatable cabinet is increased, one side of the isolation sheet 3 near the pressure relief opening 11 close to the cabinet body 1 can be separated from the cabinet body 1 by a certain distance, meanwhile, the mounting groove 13 is positioned at one side of the orthographic projection of the compression ring 2 on the cabinet body 1, which is close to the pressure relief opening 11, wherein, the mounting groove 13 has a certain distance with the orthographic projection edge of the press ring 2 on the cabinet body 1, the distance is preferably 1.5 to 2.5 times of the thickness of the isolation sheet 3, when the side of the isolation sheet 3 near the pressure relief opening 11 close to the cabinet body 1 can be separated from the cabinet body 1 by a certain distance, the inner space of the cabinet body 1 can be communicated with the mounting groove 13, so that an effective air leakage channel can be further formed between the isolation sheet 3 and the cabinet body 1.
In one embodiment, the spacer 3 is a stainless steel sheet.
The stainless steel has high strength and good air tightness.
In one embodiment, a guiding groove is formed in one side of the isolating sheet 3 away from the inner side of the cabinet body 1.
Guiding groove processing is in stainless steel spacing block 3 one side of keeping away from cabinet body 1, then increases suddenly to very big, when reaching the degree that can break the spacing block 3 in aerifing the cabinet, because the existence of guiding groove, spacing block 3 can not torn into a plurality of fritters for splitting along the guiding groove to eliminate the potential safety hazard, wherein, the required pressure range who bears of spacing block 3 can be looked to the specification of spacing groove and specifically set up.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The utility model provides an aerify cabinet pressure relief device, a serial communication port, the intelligent cabinet temperature adjusting device comprises a cabinet body, the cabinet body is airtight structure, the pressure release mouth has been seted up on the lateral wall of the cabinet body, still be provided with the clamping ring on the cabinet body, the clamping ring encircles the pressure release mouth sets up, the clamping ring with be provided with the spacing block between the pressure release mouth, just the edge of spacing block is located the orthographic projected inboard of clamping ring.
2. The decompression device of an inflatable cabinet according to claim 1, wherein the cabinet body is further provided with a plurality of threaded holes, the threaded holes are arranged around the decompression opening, the compression ring is provided with through holes corresponding to the threaded holes, the compression ring is fixed on the cabinet body through fastening bolts penetrating through the through holes and the threaded holes, and the isolation sheet is positioned on the inner side of the plurality of threaded holes arranged around the decompression opening.
3. The decompression device of an inflatable cabinet according to claim 2, wherein the through hole is a stepped hole, the stepped hole comprises a connecting hole and a limiting hole which are sequentially far away from the cabinet body, the connecting hole and the limiting hole are arranged on the same central line, the diameter of the connecting hole is smaller than that of the limiting hole, and a spring is arranged at the bottom of the limiting hole.
4. The decompression device of an inflatable cabinet according to claim 2, wherein the compression ring is arranged outside the cabinet body, the inner side edge of the compression ring is positioned outside the pressure relief opening, an annular mounting groove is further formed in one side, close to the isolation sheet, of the cabinet body, the mounting groove surrounds the pressure relief opening, is positioned in the orthographic projection of the compression ring and is close to one side of the pressure relief opening, and a sealing ring is arranged in the mounting groove.
5. The inflatable cabinet pressure relief device of claim 1, wherein the spacer is a stainless steel sheet.
6. The decompression device of an inflatable cabinet as claimed in claim 5, wherein a guiding groove is formed on one side of the isolation sheet away from the inner side of the cabinet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921562580.8U CN210517574U (en) | 2019-09-19 | 2019-09-19 | Pressure relief device of gas-filled cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921562580.8U CN210517574U (en) | 2019-09-19 | 2019-09-19 | Pressure relief device of gas-filled cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210517574U true CN210517574U (en) | 2020-05-12 |
Family
ID=70570629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921562580.8U Active CN210517574U (en) | 2019-09-19 | 2019-09-19 | Pressure relief device of gas-filled cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210517574U (en) |
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2019
- 2019-09-19 CN CN201921562580.8U patent/CN210517574U/en active Active
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