CN211010034U - Fire-proof safety valve - Google Patents
Fire-proof safety valve Download PDFInfo
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- CN211010034U CN211010034U CN201921415488.9U CN201921415488U CN211010034U CN 211010034 U CN211010034 U CN 211010034U CN 201921415488 U CN201921415488 U CN 201921415488U CN 211010034 U CN211010034 U CN 211010034U
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Abstract
The utility model relates to a relief valve, fire prevention relief valve specifically says so. The valve comprises a valve body, wherein the valve body is in a hollow tubular shape, the inner cavity of the valve body is divided into two sections, and the inner diameter of one section is larger than that of the other section, so that a circumferential step is formed in the valve body. The section of valve body that the internal diameter is big is provided with support column and spacing post from circumference step one end to one end within a definite time with one heart in proper order, has pressure spring between support column and the spacing post. And a sealing cone is concentrically fixed at one end of the supporting column close to the circumferential step. The side wall of the valve body corresponding to the support column is provided with an exhaust hole. Its characteristics are that there is the guide cylinder in that section valve body between support column and spacing post, and the nozzle of guide cylinder is towards the support column, and the support column one end of keeping away from sealed awl is located the guide cylinder, and is the sliding fit between support column and the guide cylinder, has the hot melt post between the support column one end of keeping away from sealed awl and the bobbin base of guide cylinder. The pressure spring is positioned between the limiting column and the guide cylinder.
Description
Technical Field
The utility model relates to a relief valve, fire prevention relief valve specifically says so. The device is particularly suitable for systems using pressure gas as a transmission medium.
Background
In systems using pressurized gas as the transmission medium, it is often necessary to use a safety valve to set and limit the medium pressure to ensure the safety of the system.
At present, a conventional safety valve includes a valve body having a hollow tubular shape, an inner cavity of the valve body is divided into two sections, and an inner diameter of one section is larger than that of the other section, thereby forming a circumferential step in the valve body. The section of valve body that the internal diameter is big is interior to be provided with support column and spacing post from circumference step one end to one end in proper order with one heart, and the external diameter of support column is less than that section of valve body internal diameter that the internal diameter is big, and the outer wall of spacing post links to each other with that section of valve body inner wall that the internal diameter is big, has pressure spring between support column and spacing post. And a sealing cone is concentrically fixed at one end of the supporting column close to the circumferential step, and the section with the small diameter of the sealing cone faces the section with the small inner diameter of the valve body inner cavity. And the side wall of the section of the valve body corresponding to the support column is provided with an exhaust hole communicated with the inner cavity of the section of the valve body with a large inner diameter. When in use, one end of the valve body with the small inner diameter is connected with a system which takes pressure gas as transmission medium. Under the normal operating condition, the outer side surface of the sealing cone is propped against the inner end of the inner cavity of the valve body with small inner diameter under the action of the pressure spring to form sealing. When the pressure of the pressure gas rises to be higher than the yield pressure of the pressure spring, the sealing cone moves towards the section of the valve body inner cavity with the larger inner diameter under the action of the pressure gas, so that a gap is formed between the outer side surface of the sealing cone and the inner end of the valve body inner cavity with the smaller inner diameter, and the pressure gas is exhausted from the exhaust hole through the gap to complete pressure relief. The conventional safety valve needs the pressure of the system to rise above the yield pressure of the pressure spring, and the system can be decompressed. However, when a fire disaster occurs in a use environment, the conventional safety valve still needs to release pressure after the system pressure is greater than the yield pressure of the pressure spring, and the pressure release is not timely, which may cause the risk of explosion of pressure containers such as an air storage tank in the system.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a fire prevention relief valve, this fire prevention relief valve is when the conflagration, and explosion risk can not appear in the timely pressure release.
In order to solve the problems, the following technical scheme is provided:
the utility model discloses a fire prevention relief valve includes the valve body, and this valve body is the cavity tubulose, and the inner chamber of valve body divide into two sections, and one section internal diameter is greater than another one section internal diameter to form circumference step in the valve body. The section of valve body that the internal diameter is big is interior to be provided with support column and spacing post from circumference step one end to one end in proper order with one heart, and the external diameter of support column is less than that section of valve body internal diameter that the internal diameter is big, and the outer wall of spacing post links to each other with that section of valve body inner wall that the internal diameter is big, has pressure spring between support column and spacing post. And a sealing cone is concentrically fixed at one end of the supporting column close to the circumferential step, and the section with the small diameter of the sealing cone faces the section with the small inner diameter of the valve body inner cavity. And the side wall of the section of the valve body corresponding to the support column is provided with an exhaust hole communicated with the inner cavity of the section of the valve body with a large inner diameter. The sealing cone-shaped hot melt valve is characterized in that a guide cylinder is concentrically arranged in the section of the valve body between the support column and the limiting column, a cylinder opening of the guide cylinder faces the support column, the guide cylinder and an inner cavity of the valve body are in axial movable fit along the valve body, one end of the support column far away from the sealing cone is located in the guide cylinder, the support column and the guide cylinder are in sliding fit, and a hot melt column is arranged between one end of the support column far away from the sealing cone and the bottom of the guide cylinder. The pressure spring is positioned between the limiting column and the guide cylinder.
Wherein, the outer end of the section of the valve body cavity with the larger inner diameter is processed with an internal thread, the limit post is processed with an external thread, and the limit post and the valve body cavity are in threaded connection; one end of the limiting column far away from the supporting column extends out of the outer end of the section of the valve body inner cavity with the large inner diameter, and the extending end of the limiting column is provided with a screwing block.
The outer wall of one end of the guide cylinder close to the support column is integrally connected with an annular boss protruding outwards in the radial direction, the outer peripheral surface of the annular boss is in sliding fit with the side wall of the inner cavity of the valve body, a central blind hole is formed in one end of the limiting column corresponding to the guide cylinder, and the pressure spring is located between the bottom of the central blind hole and the annular boss.
And the support columns corresponding to the two ends of the hot melting column and the bottom of the guide cylinder are provided with storage tanks.
By adopting the scheme, the method has the following advantages:
because the utility model discloses a there is the guide cylinder in that section valve body between support column and spacing post, is the axial activity form cooperation along the valve body between guide cylinder and valve body inner chamber, and the support column one end of keeping away from sealed awl is located the guide cylinder, and is the sliding fit between support column and guide cylinder, has the hot melt post between the support column one end of keeping away from sealed awl and the bobbin base of guide cylinder, and pressure spring is located between spacing post and guide cylinder. When in use, one end of the valve body with the small inner diameter is connected with a system which takes pressure gas as transmission medium. Under the normal operating condition, the reaction force of the pressure spring compresses the outer side surface of the sealing cone on the inner end of the inner cavity of the valve body with small inner diameter through the guide cylinder and the hot melting column to form sealing. When the fire disaster occurs in the use environment, the temperature of the environment rises, the hot melting column is melted under the action of high temperature, and the reaction force of the pressure spring cannot be transmitted to the sealing cone through the hot melting column, so that the pressure gas of the system can push the sealing cone to release the pressure without overcoming the yield pressure of the pressure spring, the pressure release is timely, and the pressure containers such as gas storage tanks in the system can not explode.
Drawings
Fig. 1 is the structure schematic diagram of the fire safety valve of the utility model:
fig. 2 is a schematic sectional view taken along line a-a of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model discloses a fire prevention safety valve includes valve body 1, and this valve body 1 is the cavity tubulose, and the inner chamber of valve body 1 divide into two sections, and one section internal diameter is greater than another section internal diameter to form circumference step in valve body 1. Support column 5 and spacing post 3 have set gradually with one heart from circumference step one end to one end in the section of valve body 1 that the internal diameter is big, and the external diameter of support column 5 is less than the section of valve body 1 internal diameter that the internal diameter is big, and the outer wall of spacing post 3 links to each other with the section of valve body 1 inner wall that the internal diameter is big, has pressure spring 8 between support column 5 and the spacing post 3. A sealing cone 11 is concentrically fixed at one end of the supporting column 5 close to the circumferential step, and the section with the small diameter of the sealing cone 11 faces the inner cavity of the section with the small inner diameter of the valve body 1. And the side wall of the section of the valve body 1 corresponding to the support column 5 is provided with an exhaust hole 2 communicated with the inner cavity of the section of the valve body 1 with the large inner diameter. The section of valve body 1 between support column 5 and spacing post 3 is provided with guide cylinder 7 with one heart in, the nozzle of guide cylinder 7 is towards support column 5, is the axial activity form cooperation along valve body 1 between guide cylinder 7 and the 1 inner chamber of valve body, keeps away from 5 one end of support column of sealed awl 11 and is located guide cylinder 7, and is the sliding fit between support column 5 and guide cylinder 7, keeps away from 5 one end of support column of sealed awl 11 and has hot melt post 9 between the bobbin base of guide cylinder 7. The pressure spring 8 is positioned between the limiting column 3 and the guide cylinder 7. An annular boss 6 protruding outwards in the radial direction is integrally connected to the outer wall of one end of the guide cylinder 7 close to the support column 5, the outer peripheral surface of the annular boss 6 is in sliding fit with the side wall of the inner cavity of the valve body 1, a central blind hole is formed in one end of the limiting column 3 corresponding to the guide cylinder 7, and the pressure spring 8 is located between the bottom of the central blind hole and the annular boss 6.
In order to adjust the yield pressure of the pressure spring 8 conveniently, the outer end of the inner cavity of the valve body 1 with the large inner diameter is provided with an internal thread, the limiting column 3 is provided with an external thread, and the limiting column 3 is in threaded connection with the inner cavity of the valve body 1; one end of the limiting column 3 far away from the supporting column 5 extends out of the outer end of the inner cavity of the valve body 1 with the large inner diameter, and the extending end of the limiting column 3 is provided with a screwing block 4.
In order to store the melted hot melting columns 9, the supporting columns 5 and the guide cylinders 7 corresponding to the two ends of the hot melting columns 9 are provided with storage grooves 10.
When in use, one end of the valve body 1 with small inner diameter is connected with a system taking pressure gas as transmission medium. Under the normal working state, the reaction force of the pressure spring 8 presses the outer side surface of the sealing cone 11 to the inner end of the inner cavity of the valve body 1 with small inner diameter through the guide cylinder 7 and the hot melting column 9 to form sealing. When the pressure of the pressure gas rises to be higher than the yield pressure of the pressure spring 8, the sealing cone 11 moves towards the inner cavity of the section of the valve body 1 with the larger inner diameter under the action of the pressure gas, so that a gap is formed between the outer side surface of the sealing cone 11 and the inner end of the inner cavity of the valve body 1 with the smaller inner diameter, and the pressure gas is exhausted from the exhaust hole 2 through the gap, thereby realizing conventional pressure relief. When a fire disaster occurs in the use environment, the temperature of the environment rises, the hot melting column 9 is melted under the action of high temperature, and the reaction force of the pressure spring 8 cannot be transmitted to the sealing cone 11 through the hot melting column 9, so that the pressure gas of the system can push the sealing cone 11 to emergently release the pressure without overcoming the yield pressure of the pressure spring 8.
Claims (4)
1. A fire-proof safety valve comprises a valve body (1), wherein the valve body (1) is in a hollow tubular shape, the inner cavity of the valve body (1) is divided into two sections, and the inner diameter of one section is larger than that of the other section, so that a circumferential step is formed in the valve body (1); a supporting column (5) and a limiting column (3) are sequentially and concentrically arranged from one end of a circumferential step to one end in the section of the valve body (1) with the large inner diameter, the outer diameter of the supporting column (5) is smaller than the inner diameter of the section of the valve body (1) with the large inner diameter, the outer wall of the limiting column (3) is connected with the inner wall of the section of the valve body (1) with the large inner diameter, and a pressure spring (8) is arranged between the supporting column (5) and the limiting column (3); a sealing cone (11) is concentrically fixed at one end of the supporting column (5) close to the circumferential step, and the section with the small diameter of the sealing cone (11) faces to the inner cavity of the section with the small inner diameter of the valve body (1); the side wall of the section of the valve body (1) corresponding to the support column (5) is provided with an exhaust hole (2) communicated with the inner cavity of the section of the valve body (1) with the large inner diameter; the novel sealing device is characterized in that a guide cylinder (7) is concentrically arranged in the section of the valve body (1) between the support column (5) and the limiting column (3), a cylinder opening of the guide cylinder (7) faces the support column (5), the guide cylinder (7) is in movable fit with an inner cavity of the valve body (1) along the axial direction of the valve body (1), one end of the support column (5) far away from the sealing cone (11) is positioned in the guide cylinder (7), the support column (5) is in sliding fit with the guide cylinder (7), and a hot melting column (9) is arranged between one end of the support column (5) far away from the sealing cone (11) and the cylinder bottom of the guide cylinder (7); the pressure spring (8) is positioned between the limiting column (3) and the guide cylinder (7).
2. A fire safety valve according to claim 1, characterized in that the outer end of the inner cavity of the valve body (1) with the larger inner diameter is provided with an internal thread, the limiting column (3) is provided with an external thread, and the limiting column (3) is in threaded connection with the inner cavity of the valve body (1); one end of the limiting column (3) far away from the support column (5) extends out of the outer end of the inner cavity of the valve body (1) with the large inner diameter, and the extending end of the limiting column (3) is provided with a screwing block (4).
3. A fire safety valve according to claim 1, characterized in that an annular boss (6) protruding radially outward is integrally connected to the outer wall of one end of the guide cylinder (7) adjacent to the support column (5), the outer peripheral surface of the annular boss (6) is in sliding fit with the side wall of the inner cavity of the valve body (1), a central blind hole is formed at one end of the limit column (3) corresponding to the guide cylinder (7), and the pressure spring (8) is located between the bottom of the central blind hole and the annular boss (6).
4. A fire safety valve according to any of claims 1 to 3, wherein the supporting columns (5) and the guiding cylinder (7) corresponding to the two ends of the heat-melting column (9) have storage grooves (10) on the bottoms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921415488.9U CN211010034U (en) | 2019-08-29 | 2019-08-29 | Fire-proof safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921415488.9U CN211010034U (en) | 2019-08-29 | 2019-08-29 | Fire-proof safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211010034U true CN211010034U (en) | 2020-07-14 |
Family
ID=71469284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921415488.9U Active CN211010034U (en) | 2019-08-29 | 2019-08-29 | Fire-proof safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211010034U (en) |
-
2019
- 2019-08-29 CN CN201921415488.9U patent/CN211010034U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 178, Xigang Road, Dongbei Tang, Xishan District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Hongmeng Marine Technology Co.,Ltd. Address before: 214000 No.22, dongbeitang east section, Xigang Road, dongbeitang, Xishan District, Wuxi City, Jiangsu Province Patentee before: Wuxi Hongmeng Marine Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214000 No.22, dongbeitang east section, Xigang Road, dongbeitang, Xishan District, Wuxi City, Jiangsu Province Patentee after: Wuxi Qianfan ship supporting equipment Co.,Ltd. Address before: 214000 No.22, dongbeitang east section, Xigang Road, dongbeitang, Xishan District, Wuxi City, Jiangsu Province Patentee before: Wuxi Hongmeng Marine Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201111 Address after: No. 178, Xigang Road, Dongbei Tang, Xishan District, Wuxi City, Jiangsu Province Patentee after: Wuxi Hongmeng Marine Technology Co.,Ltd. Address before: 214000 No.22, dongbeitang east section, Xigang Road, dongbeitang, Xishan District, Wuxi City, Jiangsu Province Patentee before: Wuxi Qianfan ship supporting equipment Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220111 Address after: No. 203, Furong Zhongsi Road, Xishan District, Wuxi City, Jiangsu Province Patentee after: WUXI HAIHE EQUIPMENT TECHNOLOGY Ltd. Address before: No. 178, Xigang Road, Dongbei Tang, Xishan District, Wuxi City, Jiangsu Province Patentee before: Wuxi Hongmeng Marine Technology Co.,Ltd. |