Fire-fighting pressure reducing valve with anti-explosion structure

Abstract

The utility model relates to the technical field of pressure reducing valves, in particular to a fire-fighting pressure reducing valve with an explosion-proof structure, which comprises a pressure reducing valve body, a protection component, a filter component, a pressure reducing valve cover, a pressure reducing valve cover and a pressure reducing valve cover, and is characterized in that the protection component is used for preventing water flow from splashing around and is fixedly connected onto the pressure reducing valve body; the filtering assembly is used for filtering liquid entering the pressure reducing valve body, the filtering assembly is fixedly connected to the protection assembly, in the using process, the upper protection shell and the lower protection shell are connected through a bolt, the lower protection shell is detachably designed, maintenance of the filtering assembly cannot be affected, and when a pipeline of the filtering assembly cracks, the filtering assembly is fixedly connected to the protection assembly. The design that the upper protective shell and the lower protective shell form the cavity effectively weakens the force of water flow spraying outwards, water flow is prevented from splashing all around, splashed liquid can be guided out in a unified mode through the drainage pipe, and then time is gained for rush repair of pipelines.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure reducing valves, in particular to a fire-fighting pressure reducing valve with an explosion-proof structure. Background Art

[0002] Pressure reducing valves can be divided into diaphragm type, spring diaphragm type, piston type, lever type and bellows type according to their structural form; they can be single-seat type and double-seat type according to the number of valve seats. Pressure reducing valves are valves that reduce the inlet pressure to a required outlet pressure through adjustment and rely on the energy of the medium itself to automatically keep the outlet pressure stable.

[0003] Among them, pressure reducing valves are widely used in fire protection engineering. The existing pressure reducing valve works as follows: by changing the throttling area, the flow rate and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of reducing pressure. Then, by adjusting the control and regulation system, the fluctuation of the pressure behind the valve is balanced with the spring force, so that the pressure behind the valve is kept constant within a certain error range. In order to prevent impurities in the liquid from entering the pressure reducing valve and prevent impurities from clogging the pressure reducing valve and causing the pressure in the valve cavity to be too high, causing the pressure reducing valve to rupture, it is necessary to add a filter component at the front end of the pressure reducing valve. The filter component blocks the impurities at the front end of the pressure reducing valve. Subsequently, the impurities continue to accumulate, or the impurities are not cleaned in time, and the pipeline connected to the filter component is prone to rupture, causing the water in the pipeline to splash everywhere.

[0004] For this reason, we propose a fire-fighting pressure reducing valve with an explosion-proof structure. Utility Model Content

[0005] The purpose of the utility model is to provide a fire-fighting pressure reducing valve with an explosion-proof structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire-fighting pressure reducing valve with an explosion-proof structure, comprising a pressure reducing valve body, a protective component, the protective component is used to block water from splashing everywhere, the protective component is fixedly connected to the pressure reducing valve body, a filter component, the filter component is used to filter the liquid entering the pressure reducing valve body, the filter component is fixedly connected to the protective component, the protective component comprises a water inlet pipe, the water inlet pipe is fixedly connected to the pressure reducing valve body, an upper protective shell is fixedly connected to the water inlet pipe, a lower protective shell is arranged in the upper protective shell, a bolt is sleeved in the upper protective shell, the bolt is threadedly connected to the lower protective shell, and a discharge pipe is fixedly connected in the lower protective shell.

[0007] Preferably, a metal sleeve is fixedly connected to the leakage pipe.

[0008] Preferably, a connecting pipe is fixedly connected to the upper protective shell, and a flange is fixedly connected to the connecting pipe.

[0009] Preferably, the filter assembly includes a curved pipe, the curved pipe is fixedly connected to the water inlet pipe, a collecting tube is fixedly connected to the curved pipe, a threaded seat is threaded in the collecting tube, a filter cartridge is fixedly connected to the threaded seat, and a transverse pipe is fixedly connected to the collecting tube.

[0010] Preferably, a sealing gasket is fixedly connected in the threaded seat.

[0011] Preferably, a regulating valve head is installed on the pressure reducing valve body, and a needle valve is arranged in the pressure reducing valve body.

[0012] Preferably, a water outlet pipe is fixedly connected to the pressure reducing valve body.

[0013] The utility model has at least the following beneficial effects:

[0014] 1. During use, the water inlet pipe and the upper protective shell are fixedly connected together, and then the lower protective shell is installed on the bottom of the upper protective shell and connected with bolts, so that the drain pipe and the upper protective shell are connected with each other, and the metal sleeve is inserted into the sewer by stretching the drain pipe. When the filter assembly leaks or even bursts, the splashed liquid enters the drain pipe along the upper and lower protective shells, and the liquid is discharged through the drain pipe.

[0015] The upper and lower protective shells are connected by bolts. The detachable design of the lower protective shell will not affect the maintenance of the filter assembly. When the pipeline of the filter assembly breaks, the design of the cavity formed by the upper and lower protective shells can effectively weaken the force of the water spraying outward and prevent the water from splashing everywhere. The spill pipe can be used to uniformly discharge the splashed liquid, thereby buying time for the repair of the pipeline.

[0016] 2. Use a curved pipe to connect the water inlet pipe and the collecting tube, and use a transverse pipe to connect the collecting tube and the connecting tube. The liquid enters the collecting tube along the connecting tube and the transverse tube. The liquid permeates the filter cartridge and enters the water inlet pipe along the curved pipe. Then the filter cartridge completes the filtration of the liquid, and the impurities in the liquid are retained between the collecting tube and the filter cartridge.

[0017] Through the setting of the filter cartridge, the traditional filter net is improved. The filter cartridge has a cylindrical structure, and the curved tube extends into the inner cavity of the filter cartridge, which increases the filtration area between the filter cartridge and the liquid and effectively prevents the filter component from being blocked. The collection cartridge retains impurities in the liquid, and opening the threaded seat facilitates the cleaning of impurities in the collection cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the upper protective shell, the connecting pipe and the water inlet pipe in the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the collecting cylinder, the filter cylinder and the threaded seat in the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the upper casing, bolts and connecting pipe in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the lower protective shell, the drain pipe and the metal sleeve of the utility model.

[0023] In the figure: 1. Protection assembly; 2. Filter assembly; 3. Pressure reducing valve body; 4. Water inlet pipe; 5. Upper protective shell; 6. Lower protective shell; 7. Bolts; 8. Drain pipe; 9. Metal sleeve; 10. Connecting pipe; 11. Flange; 12. Curved pipe; 13. Collecting tube; 14. Threaded seat; 15. Filter cartridge; 16. Horizontal pipe; 17. Sealing gasket; 18. Regulating valve head; 19. Needle valve; 20. Water outlet pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 5 The utility model provides a technical solution for a fire-fighting pressure-reducing valve with an explosion-proof structure: a fire-fighting pressure-reducing valve with an explosion-proof structure, comprising a pressure-reducing valve body 3, a protective component 1, the protective component 1 is used to block water from splashing around, the protective component 1 is fixedly connected to the pressure-reducing valve body 3, and a filter component 2, the filter component 2 is used to filter the liquid entering the pressure-reducing valve body 3, and the filter component 2 is fixedly connected to the protective component 1.

[0027] The protection component 1 includes an inlet pipe 4, which is fixedly connected to the pressure reducing valve body 3, and an upper protective shell 5 is fixedly connected to the water inlet pipe 4. A lower protective shell 6 is arranged in the upper protective shell 5, and a bolt 7 is sleeved in the upper protective shell 5. The bolt 7 is threadedly connected to the lower protective shell 6, and a discharge pipe 8 is fixedly connected in the lower protective shell 6. During use, the water inlet pipe 4 and the upper protective shell 5 are fixedly connected together, and then the lower protective shell 6 is installed at the bottom of the upper protective shell 5, and the upper protective shell 5 and the lower protective shell 6 are connected by the bolt 7, so that the discharge pipe 8 and the upper protective shell 5 are connected to each other. When the filter component 2 leaks or even bursts, the splashed liquid is discharged through the discharge pipe 8. In this embodiment, the upper protective shell 5 and the lower protective shell 6 are connected by the bolt 7, which does not affect the maintenance of the filter component 2, and the setting of the upper protective shell 5 and the lower protective shell 6 effectively prevents water splashing, and the splashed water can be uniformly discharged by the discharge pipe 8.

[0028] A metal sleeve 9 is fixedly connected to the drain pipe 8. The drain pipe 8 is a telescopic hose. The arrangement of the metal sleeve 9 facilitates the insertion of the drain pipe 8 into the sewer.

[0029] A connecting pipe 10 is fixedly connected to the upper protective shell 5, and a flange 11 is fixedly connected to the connecting pipe 10. The connecting pipe 10 and the flange 11 are arranged to be connected to a liquid pipeline.

[0030] Embodiment 2

[0031] The filter assembly 2 includes a curved pipe 12, the curved pipe 12 is fixedly connected to the water inlet pipe 4, a collecting cylinder 13 is fixedly connected to the curved pipe 12, a threaded seat 14 is threadedly connected in the collecting cylinder 13, a filter cartridge 15 is fixedly connected to the threaded seat 14, and a transverse pipe 16 is fixedly connected to the collecting cylinder 13. According to the above embodiment, the water inlet pipe 4 and the collecting cylinder 13 are connected by the curved pipe 12, and the collecting cylinder 13 and the connecting pipe 10 are connected by the transverse pipe 16. The liquid enters the collecting cylinder 13 along the connecting pipe 10 and the transverse pipe 16, and the liquid penetrates the filter cartridge 15 and enters the water inlet pipe 4 along the curved pipe 12, and then the liquid The pressure is adjusted in the pressure reducing valve body 3. When the filter cartridge 15 needs to be maintained, the protective shell 6 is removed, and the threaded seat 14 is rotated to separate the collecting cylinder 13, and then the filter cartridge 15 is pulled out, and the impurities in the collecting cylinder 13 can be cleaned. Through the setting of the filter cartridge 15, the traditional filter net is improved. The filter cartridge 15 has a cylindrical structure, and the curved pipe 12 extends into the inner cavity of the filter cartridge 15, thereby increasing the filtering area between the filter cartridge 15 and the liquid, effectively preventing the filter component 2 from being blocked, and the collecting cylinder 13 retains impurities in the liquid. Opening the threaded seat 14 facilitates the cleaning of the collecting cylinder 13.

[0032] A sealing gasket 17 is fixedly connected to the threaded seat 14 , and the provision of the sealing gasket 17 increases the sealing performance between the threaded seat 14 and the collecting tube 13 .

[0033] A regulating valve head 18 is installed on the pressure reducing valve body 3 , and a needle valve 19 is arranged in the pressure reducing valve body 3 . Both the regulating valve head 18 and the needle valve 19 are components of the pressure reducing valve body 3 .

[0034] A water outlet pipe 20 is fixedly connected to the pressure reducing valve body 3 , and the liquid after pressure regulation by the pressure reducing valve body 3 is discharged through the water outlet pipe 20 .

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire-fighting pressure reducing valve with an explosion-proof structure, comprising a pressure reducing valve body (3), characterized in that: A protection component (1), the protection component (1) is used to prevent water from splashing around, and the protection component (1) is fixedly connected to the pressure reducing valve body (3); A filter assembly (2), the filter assembly (2) being used to filter liquid entering the pressure reducing valve body (3), the filter assembly (2) being fixedly connected to the protection assembly (1); The protection component (1) comprises a water inlet pipe (4), the water inlet pipe (4) and the pressure reducing valve body (3) are fixedly connected, an upper protective shell (5) is fixedly connected to the water inlet pipe (4), a lower protective shell (6) is arranged in the upper protective shell (5), a bolt (7) is sleeved in the upper protective shell (5), the bolt (7) and the lower protective shell (6) are threadedly connected, and a discharge pipe (8) is fixedly connected in the lower protective shell (6).

2. The fire-fighting pressure reducing valve with explosion-proof structure according to claim 1, characterized in that: The drain pipe (8) is fixedly connected to a metal sleeve (9).

3. The fire-fighting pressure reducing valve with explosion-proof structure according to claim 1, characterized in that: A connecting pipe (10) is fixedly connected to the upper protective shell (5), and a flange (11) is fixedly connected to the connecting pipe (10).

4. The fire-fighting pressure reducing valve with explosion-proof structure according to claim 1, characterized in that: The filter assembly (2) comprises a curved pipe (12), the curved pipe (12) and the water inlet pipe (4) are fixedly connected, a collecting tube (13) is fixedly connected to the curved pipe (12), a threaded seat (14) is threadedly connected in the collecting tube (13), a filter cartridge (15) is fixedly connected to the threaded seat (14), and a transverse pipe (16) is fixedly connected to the collecting tube (13).

5. The fire-fighting pressure reducing valve with explosion-proof structure according to claim 4, characterized in that: A sealing gasket (17) is fixedly connected in the threaded seat (14).

6. The fire-fighting pressure reducing valve with explosion-proof structure according to claim 1, characterized in that: A regulating valve head (18) is installed on the pressure reducing valve body (3), and a needle valve (19) is arranged in the pressure reducing valve body (3).

7. The fire-fighting pressure reducing valve with explosion-proof structure according to claim 1, characterized in that: The pressure reducing valve body (3) is fixedly connected to a water outlet pipe (20).

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