CN219317725U - Fire-retardant and burn-resistant single-calling valve - Google Patents
Fire-retardant and burn-resistant single-calling valve Download PDFInfo
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- CN219317725U CN219317725U CN202320094914.3U CN202320094914U CN219317725U CN 219317725 U CN219317725 U CN 219317725U CN 202320094914 U CN202320094914 U CN 202320094914U CN 219317725 U CN219317725 U CN 219317725U
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Abstract
The utility model relates to the technical field of valves, in particular to a fire-retarding and fire-resistant single-call valve, which comprises a valve body assembly, an expiration valve disc assembly, a rain-proof cover, a clamp spring assembly, a pressing plate, a fire-retarding grid assembly and a connecting rod assembly.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a fire-retardant and burn-resistant single-call valve.
Background
The fire-retardant single-call valve is a safety device for preventing the flame of inflammable gas and inflammable liquid steam from spreading, and can also reduce the evaporation loss of the medium in the storage tank. Is generally installed on a storage tank and prevents propagation of flame, and consists of a valve body assembly, an exhalation valve disc assembly, a fire barrier, a rain cover, a sealing element, a fastening piece and the like.
Most of the fire-retarding single-call valves in the prior art are combined fire-retarding single-call valves and integrated fire-retarding single-call valves, namely, the combined fire-retarding single-call valves simply connect the single-call valves and the fire-retarding devices together by using fasteners and sealing elements, although the fire-retarding performance in various standards can be achieved, the defects of the mode are that the combined fire-retarding single-call valves are too heavy, the burden on the storage tanks with older service lives is large, and the safety factor is unstable. On the other hand, when the combined single-call valve and flame arrester need to be overhauled, the single-call valve and the flame arrester need to be disassembled and hoisted to the ground, so that detection and maintenance are performed, and the detection and maintenance cost is high. There is also a risk of the valve falling during lifting. The existing combined serial fire-retarding single-calling valve can prevent the instant atmospheric deflagration, but can not prevent the long-time combustion on the surface of the fire-retarding grating when the combustible gas in the tank is continuously discharged. When the atmosphere deflagration occurs, the surface of the fire-retardant disk on the atmosphere side of the combined fire-retardant single-call valve can burn due to the combustible gas continuously discharged by the overpressure in the storage tank, and the high temperature and heat generated by long-time combustion can trigger the fire-retardant disk to temper, so that the gas in the storage tank is ignited, and the storage tank is exploded. The process only takes a few minutes, even a few seconds, so the design and manufacture of the integrated burn-resistant single-call valve are necessary.
The fire-retarding single-calling valve in the prior art is formed by connecting a fire retarder and a single-calling valve in series, wherein the fire retarder is positioned at a flange opening of the tank top, and the single-calling valve is arranged at an outlet of the fire retarder. The fire-retardant grid is easy to be blocked (materials easy to crystallize, such as benzene-containing oil gas, rust slag, etc.). The single call valve ventilation decreases and the tank is very vulnerable to overpressure or vacuum.
Disclosure of Invention
The utility model solves the problems that: the fire-retarding single-calling valve in the prior art adopts a fire-retarding device and the single-calling valve to be used in series, has the problems of overweight weight, inconvenient maintenance, no burning resistance and easy blockage of a fire-retarding grid, and provides the fire-retarding and burning-resisting single-calling valve which has compact structure, is convenient to install and maintain, is burning-resistant and is not easy to block.
The utility model is realized by the following technical scheme that the fire-retardant and burn-resistant single-call valve comprises a valve body assembly, an expiration valve disc assembly, a rain cover, a clamp spring assembly, a pressing plate, a fire-retardant gate assembly and a connecting rod assembly, wherein the valve body assembly comprises a lower connecting flange, a valve body, an upper connecting flange and the middle part of the valve body, the expiration valve disc assembly is arranged at the middle part of the valve body, the lower connecting flange is connected with equipment, the fire-retardant gate assembly is detachably arranged on the upper connecting flange through the pressing plate and a fastening piece, the rain cover is arranged above the pressing plate, the diameter of the rain cover is larger than that of the pressing plate, the bottom opening of the rain cover is not higher than that of the pressing plate, the rain cover is hinged with the pressing plate, the clamp spring assembly is arranged on a hinged shaft, and has the trend of opening the rain cover outwards, and the rain cover is relatively fixedly connected with the fire-retardant gate assembly through the connecting rod assembly with fusible alloy.
Further, the fire-retardant grating assembly comprises a sleeve, fire-retardant gratings and brackets, wherein two brackets are arranged and are respectively arranged at two ends of the sleeve, the brackets are abutted against the step surfaces of the sleeve, and the fire-retardant gratings are fixedly arranged between the two sleeves.
Further, a sealing gasket is arranged between the upper connecting flange and the sleeve as well as between the upper connecting flange and the bracket.
Further, the connecting rod assembly comprises an upper section screw rod, a lower section screw rod and a fusible alloy, the upper section screw rod and the lower section screw rod are connected through the fusible alloy, the upper section screw rod is connected with the rain cover through a fastener, and the lower section screw rod is fixed at the central position of the fire-retardant grid assembly through the fastener.
Further, the valve body is provided with a sealing valve seat which divides the valve body into an outer cavity and an inner cavity.
Further, the exhalation valve disc assembly is mounted on the sealing valve seat, the exhalation valve disc assembly 2 is mounted on the sealing valve seat 104 and is fixedly limited by a guide rod, the guide rod is connected with the sealing valve seat 104 by a fastener and is higher than the plane of the sealing valve seat, a water outlet is formed in the outer side wall of the valve body and is located at the lowest position of the outer cavity, and a plug is arranged at the water outlet.
The beneficial effects of the utility model are as follows:
1. according to the utility model, the fire-retardant grating is added on the basis of the single-call valve, so that the product structure is more compact and simpler, and the weight of the fire-retardant single-call valve is greatly reduced.
2. The utility model solves the problem that the fire-retardant grating of the fire-retardant single-call valve is difficult to disassemble and clean in the prior art, when the fire-retardant single-call valve needs to be disassembled and cleaned, the fire-retardant single-call valve can be disassembled only by unscrewing the fastening nut, and the product can be cleaned, detected and maintained by opening the rain-proof cover, so that the fire-retardant single-call valve is more convenient than the combined serial fire-retardant single-call valve.
3. The utility model installs the fire-retarding grating on the upper part of the valve disc, which solves the problem of ventilation reduction caused by the blockage of the fire-retarding grating.
4. The utility model adopts the fusible alloy at the joint of the rain-proof cover and the fire-retardant grating component, and when flame burns, the fusible alloy melts the rain-proof cover to flick for heat dissipation, thereby protecting the fire-retardant grating and being able to endure burning for a long time.
Drawings
FIG. 1 is a schematic diagram of a fire-retardant, fire-resistant single call valve according to the present utility model;
FIG. 2 is a top view of a fire-resistant, fire-resistant single call valve according to the present utility model.
In the figure: 1, a valve body assembly; 101, a lower connecting flange; 102 a valve body; 103, connecting a flange; 104 sealing the valve seat; 105 drain opening; 106 plugs; 2 an exhalation valve disc assembly; 3, a rain cover; 4, a clamp spring assembly; 5, pressing plates; 6, a fire barrier assembly; 601 a sleeve; 602 fire barrier; 603 a bracket; 7, connecting a rod assembly; 701 upper section screw; 702 lower section screw; 703 fusible alloy; 8 sealing gaskets.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some of the embodiments of the present utility model, i.e. Shi Li, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-2, a fire-retardant and burn-resistant single-call valve comprises a valve body assembly 1, an expiration valve disc assembly 2, a rain cover 3, a clamp spring assembly 4, a pressing plate 5, a fire-retardant grating assembly 6 and a connecting rod assembly 7, wherein the valve body assembly 1 comprises a lower connecting flange 101, a valve body 102, an upper connecting flange 103 and the expiration valve disc assembly 2 arranged in the middle of the valve body 102, the lower connecting flange 101 is connected with equipment, the upper connecting flange 103 is detachably provided with the fire-retardant grating assembly 6 through the pressing plate 5 and a fastener, the rain cover 3 is arranged above the pressing plate 5, the diameter of the rain cover 3 is larger than that of the pressing plate 5, the bottom opening of the rain cover 3 is not higher than that of the pressing plate 5, the rain cover 3 is hinged with the pressing plate 5, the clamp spring assembly 4 is arranged on a hinged shaft, the clamp spring assembly 4 has a trend of opening the rain cover 3 outwards, and the rain cover 3 is relatively fixedly connected with the fire-retardant grating assembly 6 through the connecting rod assembly 7 with a fusible alloy 703.
In practical application, the fire-retardant grating assembly 6 comprises a sleeve 601, fire-retardant gratings 602 and brackets 603, wherein the two brackets 603 are respectively arranged at two ends of the sleeve 601, the brackets 603 are abutted against the step surfaces of the sleeve 601, and the fire-retardant gratings 602 are fixedly arranged between the two sleeves 601.
In practical application, in order to improve the sealing performance and prevent flame from passing through the gaps of the joint surfaces, a sealing gasket 8 is installed between the upper connecting flange 103 and the sleeve 601 and the bracket 603.
In practical application, the connecting rod assembly 7 comprises an upper section screw 701, a lower section screw 702 and a fusible alloy 703, wherein the upper section screw 701 and the lower section screw 702 are connected through the fusible alloy 703, the upper section screw 701 is connected with the rain cover 3 through a fastener, and the lower section screw 702 is fixed at the central position of the fire-retardant grid assembly 6 through the fastener.
In practice, to prevent oil or air condensate from contaminating the exhalation valve disc assembly 2, the valve body 102 is provided with a sealing valve seat 104, and the sealing valve seat 104 separates the valve body 102 into an outer cavity and an inner cavity. The expiration valve disc assembly 2 is installed on the sealing valve seat 104, the expiration valve disc assembly 2 is installed on the sealing valve seat 104 and is fixed and limited by a guide rod, the guide rod is connected with the sealing valve seat 104 by a fastener and is higher than the plane of the sealing valve seat 104, a water outlet 105 is arranged on the outer side wall of the valve body 102, the water outlet 105 is positioned at the lowest position of the outer side cavity, a plug 106 is arranged on the water outlet 105, accumulated liquid in the outer side cavity can be discharged by removing the plug, and rust and backflow into the tank are prevented.
The working principle of the utility model is as follows:
when the fire is met, the atmosphere side of the fire barrier assembly burns, the temperature in the rain cover 3 rises, the fusible alloy 703 melts, the upper section screw 701 and the lower section screw 702 are disconnected, the rain cover 3 turns outwards and opens under the elastic force of the clamp spring assembly 4, heat generated by the combustion is emitted to the atmosphere, the fire-resistant single valve can be ensured to bear the combustion for a long time, the full combustion of combustible gas can be ensured, the possibility of tempering is reduced, and the use safety of equipment is greatly improved. According to the utility model, the fire-retardant grating is added on the basis of the single-call valve, the product structure is more compact and simpler, the weight of the fire-retardant single-call valve is greatly reduced, the fire-retardant grating is convenient to detach and clean, and the problem of ventilation reduction caused by the blockage of the fire-retardant grating is solved by installing the fire-retardant grating on the upper part of the valve disc.
In summary, the fire-retardant and burn-resistant single-call valve has the advantages of compact structure, convenience in installation and maintenance, burn resistance and difficult blockage.
The foregoing has outlined and described the basic principles, features, and advantages of the present utility model. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concept and features of the present utility model, and the present utility model can be implemented by those skilled in the art without limiting the scope of the utility model, therefore, all equivalent changes or modifications that are made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (6)
1. A fire-retardant, burn-resistant single-call valve is characterized in that: including valve body subassembly (1), expiration valve disc subassembly (2), rain-proof cover (3), jump ring subassembly (4), clamp plate (5), fire barrier subassembly (6), connecting rod subassembly (7), valve body subassembly (1) are including lower flange (101), valve body (102), go up flange (103) be provided with expiration valve disc subassembly (2) in the middle part of valve body (102), lower flange (101) and equipment are connected, go up flange (103) and install fire barrier subassembly (6) through clamp plate (5) and fastener detachable, clamp plate (5) top is provided with rain-proof cover (3), the diameter of rain-proof cover (3) is greater than clamp plate (5), the end mouth of rain-proof cover (3) is not higher than clamp plate (5), rain-proof cover (3) are articulated with clamp plate (5), and install jump ring subassembly (4) on the articulated axle, jump ring subassembly (4) have the outside trend of opening with rain-proof cover (3), rain-proof cover (3) are through having the connecting rod fixed connection of rain-proof alloy (7) and fire barrier subassembly (6) relatively.
2. A fire-blocking, fire-resistant, single-call valve as defined in claim 1, wherein: the fire-retardant grating assembly (6) comprises a sleeve (601), fire-retardant gratings (602) and brackets (603), wherein the two brackets (603) are arranged at two ends of the sleeve (601) respectively, the brackets (603) are abutted against step surfaces of the sleeve (601), and the fire-retardant gratings (602) are fixedly arranged between the two sleeves (601).
3. A fire-blocking, fire-resistant, single-call valve as defined in claim 2, wherein: a sealing gasket (8) is arranged between the upper connecting flange (103) and the sleeve (601) as well as between the upper connecting flange and the bracket (603).
4. A fire-resistant, burn-resistant single call valve according to any one of claims 1-3, wherein: the connecting rod assembly (7) comprises an upper section screw (701), a lower section screw (702) and a fusible alloy (703), wherein the upper section screw (701) and the lower section screw (702) are connected through the fusible alloy (703), the upper section screw (701) is connected with the rain cover (3) through a fastener, and the lower section screw (702) is fixed at the central position of the fire-retardant grid assembly (6) through the fastener.
5. A fire-resistant, burn-resistant, single-call valve as recited in claim 4, wherein: the valve body (102) is provided with a sealing valve seat (104), the sealing valve seat (104) divides the valve body (102) into an outer cavity and an inner cavity.
6. A fire-resistant, burn-resistant, single-call valve as recited in claim 5, wherein: the exhalation valve disc assembly (2) is arranged on the sealing valve seat (104), the exhalation valve disc assembly (2) is arranged on the sealing valve seat (104) and is fixedly limited by a guide rod, the guide rod is connected with the sealing valve seat (104) by a fastener, a water outlet (105) is arranged on the outer side wall of the valve body (102), the water outlet (105) is positioned at the lowest position of the outer side cavity, and a plug (106) is arranged on the water outlet (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320094914.3U CN219317725U (en) | 2023-02-01 | 2023-02-01 | Fire-retardant and burn-resistant single-calling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320094914.3U CN219317725U (en) | 2023-02-01 | 2023-02-01 | Fire-retardant and burn-resistant single-calling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219317725U true CN219317725U (en) | 2023-07-07 |
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ID=87032952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320094914.3U Active CN219317725U (en) | 2023-02-01 | 2023-02-01 | Fire-retardant and burn-resistant single-calling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219317725U (en) |
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2023
- 2023-02-01 CN CN202320094914.3U patent/CN219317725U/en active Active
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