CN203326460U - High-pressure sealing pressure relief device - Google Patents
High-pressure sealing pressure relief device Download PDFInfo
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- CN203326460U CN203326460U CN2013203575764U CN201320357576U CN203326460U CN 203326460 U CN203326460 U CN 203326460U CN 2013203575764 U CN2013203575764 U CN 2013203575764U CN 201320357576 U CN201320357576 U CN 201320357576U CN 203326460 U CN203326460 U CN 203326460U
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- pressure
- pressure relief
- aeration tank
- sealing
- plate
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Abstract
The utility model relates to a high-pressure sealing pressure relief device. The high-pressure sealing pressure relief device comprises an air inflation box. The air inflation box is installed with a flange plate through a fastener, and the inner ring of the flange plate is installed with a pressure relief plate through an aluminum ring and a seal ring. According to the utility model, advantages of reasonable structure and easy operation can be realized, the pressure relief plate technology and the sealing technology are utilized, a structure in which the pressure relief plate, the aluminum ring, the seal ring and the flange plate are combined is adopted, pressure release is performed by the pressure relief plate when the air inflation box is in the overpressure condition, the air inflation box will not be damaged, junction surfaces are sealed between the seal ring, the pressure relief plate and the air inflation box, the air in the air inflation box will not be leaked in the operation process, so the pressure in the air inflation box can be ensured, so that internal electrical elements are in normal operation under the pressure so as to provide a guarantee for the electrical performance of electrical equipment.
Description
Technical field
The utility model relates to the sealing pressure relief device, especially a kind of explosion-proof electrical appliance product that controlled by automation complete set of equipments control system for the colliery industry, and for coal mine flame-proof electric equipment products security of operation, the aeration tank sealing pressure relief device that this explosion-proof electrical appliance product is used.
Background technology
The colliery industry, in each process of the production of mining, coal separation processing, storage, often may be revealed or various flammable explosive gas and the various dust of shedding that overflow.This class material, with after air mixes, may become the mixture with explosion hazard, when the concentration of mixture reaches the explosion ratio scope, once occur that burning things which may cause a fire disaster can set off an explosion and the serious accident such as breaking out of fire.Therefore the electric equipment used in the hazardous environment of colliery industry all must possess explosion-proof performance.
The mine explosion-suppression positive voltage high-voltage distribution is a kind of electrical apparatus for explosive atmospheres, and it adopts the positive pressure type structure, and electric elements all are installed in aeration tank, guarantees the projecting pressure of pressure of aeration tank internal protection gas, in order to avoid explosive mixture enters in aeration tank.When normal operation, the air pressure in aeration tank is 0.02MPa-0.1 MPa, when the inflation loading pressure, higher than 0.1 MPa or lower than 0.02MPa, sends at once and reports to the police or cut off the electricity supply.When the inflation in-box electric appliance is short-circuited fault in running, being created in electric arc raises the aeration tank internal pressure, while surpassing pressure relief plate pressure, gases at high pressure puncture the pressure relief plate aeration tank internal pressure of releasing, make aeration tank can overvoltage not occur and be out of shape, the gas of simultaneously releasing is in flameproof cabinet, and the spark of device interior, electric arc do not allow to outside, to release from any gap.
Aeration tank sealing pressure relief device is set in the mine explosion-suppression positive voltage high-voltage distribution, be the pressure relief device that guarantees that the inflation in-box electric appliance moves fully, gas pressure pressure relief device of the prior art is the overvoltage pressure relief device as pressure vessel with relief valve or Pressure gauge usually.There is following shortcoming in it: pressure valve pressure is adjusted difficulty, and the pressure valve pressure release is subject to placing restrictions on of valve aperture when the inflation in-box electric appliance is short-circuited overvoltage, and pressure release speed is slow, does not reach the effect of pressure pressure release.Use in addition Pressure gauge as the aeration tank pressure monitor, when the inflation in-box electric appliance is short-circuited overvoltage, Pressure gauge can move in the tripping operation of electric elements, and the effect of cutting off the electricity supply can not the interior pressure of venting aeration tank.
The utility model content
The applicant, for the shortcoming in above-mentioned existing production technology, provides a kind of high pressure sealing pressure relief device rational in infrastructure, thereby the reliability of its work is provided, and makes it have reliable pressure pressure release and sealing property.
The technical scheme that the utility model adopts is as follows:
A kind of high pressure sealing pressure relief device, comprise aeration tank, described aeration tank by securing member, ring flange is installed, the inner ring of described ring flange is equipped with pressure relief plate by aluminium circle and sealing ring.
As further improvement in the technical proposal:
On the periphery of described ring flange, by many groups securing member, be fixed on aeration tank;
On the periphery of described ring flange, by bolt, nut, spring washer and plain washer, be fixed on aeration tank;
Pressure relief plate is that thickness is the thin plate of 0.1mm-0.3mm;
Pressure relief plate is that thickness is the thin plate of 0.2mm.
The beneficial effects of the utility model are as follows:
The utility model is rational in infrastructure, easy and simple to handle, utilize pressure relief plate technology and Sealing Technology, adopt the structure of pressure relief plate, aluminium circle, sealing ring, ring flange combination, make pressure relief plate carry out release pressure when the aeration tank overvoltage, aeration tank is not damaged, sealed faying face between sealing ring, pressure relief plate and aeration tank can not make the Leakage Gas in aeration tank in running, guarantees the pressure of aeration tank, make the normally operation under pressure of inner electric elements, for the electric property of electric equipment provides safeguard.
The accompanying drawing explanation
Fig. 1 is front view of the present utility model.
The vertical view that Fig. 2 is Fig. 1.
Wherein: 1, pressure relief plate; 2, aluminium circle; 3, sealing ring; 4, ring flange; 5, aeration tank; 6, bolt; 7, nut; 8, spring washer; 9, plain washer.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As depicted in figs. 1 and 2, the high pressure sealing pressure relief device of the present embodiment, comprise aeration tank 5, aeration tank 5 by securing member, ring flange 4 is installed, the inner ring of ring flange 4 is equipped with pressure relief plate 1 by aluminium circle 2 and sealing ring 3.
On the periphery of ring flange 4, by many groups securing member, be fixed on aeration tank 5.
On the periphery of ring flange 4, by bolt 6, nut 7, spring washer 8 and plain washer 9, be fixed on aeration tank 5.
In actual use procedure, when normal operation, when the interior electrical equipment of aeration tank 5 is short-circuited fault in running, being created in electric arc raises aeration tank 5 internal pressures, while surpassing pressure relief plate 1 pressure, gases at high pressure puncture pressure relief plate 1 aeration tank 5 internal pressures of releasing, and make aeration tank 5 can overvoltage not occur and are out of shape.
The utility model is used by sealing ring 3, guarantees the sealing effectiveness of aeration tank 5 in its running, can not produce the phenomenon of Leakage Gas, guarantees the pressure of aeration tank 5.
Upper description is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range, referring to claim, within protection range of the present utility model, can be done any type of modification.
Claims (5)
1. a high pressure sealing pressure relief device, it is characterized in that: comprise aeration tank (5), described aeration tank (5) by securing member, ring flange (4) is installed, the inner ring of described ring flange (4) is equipped with pressure relief plate (1) by aluminium circle (2) and sealing ring (3).
2. high pressure sealing pressure relief device as claimed in claim 1, is characterized in that: on the periphery of described ring flange (4), by many groups securing member, be fixed on aeration tank (5).
3. high pressure sealing pressure relief device as claimed in claim 1, is characterized in that: on the periphery of described ring flange (4), by bolt (6), nut (7), spring washer (8) and plain washer (9), be fixed on aeration tank (5).
4. high pressure sealing pressure relief device as claimed in claim 1, it is characterized in that: pressure relief plate (1) is the thin plate of 0.1mm-0.3mm for thickness.
5. high pressure sealing pressure relief device as claimed in claim 1, it is characterized in that: pressure relief plate (1) is the thin plate of 0.2mm for thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203575764U CN203326460U (en) | 2013-06-21 | 2013-06-21 | High-pressure sealing pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203575764U CN203326460U (en) | 2013-06-21 | 2013-06-21 | High-pressure sealing pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203326460U true CN203326460U (en) | 2013-12-04 |
Family
ID=49665754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203575764U Expired - Lifetime CN203326460U (en) | 2013-06-21 | 2013-06-21 | High-pressure sealing pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203326460U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296610A (en) * | 2013-06-21 | 2013-09-11 | 无锡中科电气设备有限公司 | High-pressure sealing pressure relief device |
| CN112103806A (en) * | 2020-08-28 | 2020-12-18 | 国网江苏省电力有限公司泰州供电分公司 | Block terminal is from pressure release protection architecture |
-
2013
- 2013-06-21 CN CN2013203575764U patent/CN203326460U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296610A (en) * | 2013-06-21 | 2013-09-11 | 无锡中科电气设备有限公司 | High-pressure sealing pressure relief device |
| CN112103806A (en) * | 2020-08-28 | 2020-12-18 | 国网江苏省电力有限公司泰州供电分公司 | Block terminal is from pressure release protection architecture |
| CN112103806B (en) * | 2020-08-28 | 2022-04-15 | 国网江苏省电力有限公司泰州供电分公司 | Block terminal is from pressure release protection architecture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
|
| CX01 | Expiry of patent term |