CN210661832U

CN210661832U - Pressure relief valve device

Info

Publication number: CN210661832U
Application number: CN201921399374.XU
Authority: CN
Inventors: 夏威; 张磊
Original assignee: Shanghai Jingyuan Municipal Engineering Co Ltd
Current assignee: Shanghai Jingyuan Municipal Engineering Co Ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-06-02
Anticipated expiration: 2029-08-26

Abstract

The utility model relates to a pressure relief valve device in the technical field of pressure relief of sprinkler pipe bolts, aiming at solving the problem of convenient disassembly, comprising a tank body, wherein the bottom of the tank body is communicated with a sewer pipe, one end of the sewer pipe is connected with a centrifugal water pump, one end of the centrifugal water pump is provided with a nozzle, a pneumatic control valve is arranged on the nozzle, a three-way pressure relief valve is arranged on the water outlet pipe, one end of the three-way pressure relief valve is connected with a water return pipe, one end of the water return pipe, which is far away from the water outlet pipe, is arranged in the tank body, a first connecting piece and a second connecting piece which is clamped with the first connecting piece are respectively arranged between the water outlet pipe and the centrifugal water pump, between the water outlet pipe and the pneumatic control valve and between the three-way pressure relief valve and the water return pipe, one, and sealing assemblies are arranged on the first connecting piece and the second connecting piece. The utility model discloses have and dismantle convenient beneficial effect.

Description

Pressure relief valve device

Technical Field

The utility model belongs to the technical field of the technique of pressure release is tied to watering lorry pipe, and especially, relate to a relief valve device.

Background

The pressure relief valve is also called a safety valve and is mainly used for occasions with overlarge pipeline pressure, when the pressure in equipment or a pipeline exceeds the set pressure of the pressure relief valve, the pressure relief valve is opened, the pressure of media in the equipment and the pipeline is ensured to be lower than the set pressure, the equipment and the pipeline are protected, and accidents are prevented. The pressure release valve has the following characteristics: 1. the stable pressure is accurately kept, and once the pressure is over-pressurized, the pressure release valve can be fully opened and timely released; 2. the closing speed is adjustable, and pressure fluctuation is eliminated.

The current chinese patent with publication number CN203335118U discloses a mining sprinkler pipe bolt relief valve device, and its technical essential is: the device comprises a tank body, wherein a sewer pipe is communicated with the bottom of the tank body, a filter screen is arranged in the sewer pipe, the sewer pipe is communicated with a centrifugal water pump, a water inlet of the centrifugal water pump is communicated with the sewer pipe, a water outlet of the centrifugal water pump is connected to a nozzle through a water outlet pipe, a pneumatic control valve is arranged at the nozzle, a three-way pressure release valve is arranged on the water outlet pipe and is connected with a pressure release valve water return pipe, and the upper part of the pressure release valve water return pipe is positioned; the working principle is as follows: when the pressure relief valve works normally, water in the tank body is sprayed out through the nozzle after passing through the sewer pipe, the filter screen, the centrifugal water pump, the water outlet pipe and the pneumatic control valve, the normal pipe pressure in the water outlet pipe is 250-450Kpa, when the nozzle or the pneumatic control valve breaks down, the pipe pressure is higher than 450Kpa, and at the moment, the three-way pressure relief valve is opened, so that the water flows back into the tank body from the return water pipe of the pressure relief valve, the phenomenon that the centrifugal water pump, the filter screen, the pneumatic control valve and a flange interface of the pipeline are damaged by extreme pressure or the water is sprayed suddenly and pressed is avoided, and the.

The above prior art solutions have the following drawbacks: in the technical document, the sewer pipe, the centrifugal water pump, the three-way pressure release valve and the water outlet pipe are usually connected into a whole through threads, and are difficult to disassemble when the pipeline breaks down.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a relief valve device has the convenient advantage of messenger's pipeline dismantlement.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a pressure relief valve device comprises a tank body, wherein the bottom of the tank body is communicated with a sewer pipe, one end of the sewer pipe is connected with a water inlet of a centrifugal water pump, a filter screen is arranged on the sewer pipe, a water outlet pipe is connected onto a water outlet of the centrifugal water pump, a nozzle is arranged at the end, away from the centrifugal water pump, of the water outlet pipe, a pneumatic control valve is arranged on the nozzle, a three-way pressure relief valve is arranged on the water outlet pipe, one end of the three-way pressure relief valve is connected with a water return pipe, one end, away from the water outlet pipe, of the water return pipe is arranged inside the tank body, a first connecting piece and a second connecting piece clamped with the first connecting piece are arranged between the water outlet pipe and the centrifugal water pump, between the water outlet pipe and the pneumatic control valve and between the three-way pressure relief valve and the water, one end of the inserted bar is provided with a limiting part clamped with the limiting groove, and the first connecting piece and the second connecting piece are provided with sealing assemblies.

By adopting the technical scheme, when the pressure release valve works normally, water in the tank body flows out from the sewer pipe and enters the centrifugal water pump after passing through the filter screen, under the action of the centrifugal water pump, the water in the sewer pipe flows into the water outlet pipe and is sprayed out from the nozzle of the pneumatic control valve, when the nozzle or the pneumatic control valve breaks down, the pipe pressure rises, at the moment, the three-way valve is opened, so that the water flows back into the tank body from the water return pipe of the pressure release valve, when parts are required to be replaced between the sewer pipe and the centrifugal water pump, the water outlet pipe and the pneumatic control valve, and the three-way valve and the water return pipe, an operator takes the limiting part out of the limiting groove, the inserted bar is taken out from the through hole, the first connecting piece and the.

The utility model discloses further set up to: the sealing ring is sleeved on the periphery of the first lug.

Through adopting above-mentioned technical scheme, the inseparable combination of first connecting piece and second connecting piece has been realized to the joint of recess and first lug, and the sealing washer sets up the sealing connection who has realized first connecting piece and second connecting piece.

The utility model discloses further set up to: the locating part is including setting up the spacing groove on the inserted bar, and spacing inslot portion is provided with flexible post, flexible capital portion is fixed with the spring.

Through adopting above-mentioned technical scheme, the setting up of the flexible post and the spring of spacing inslot portion makes inserted bar one end be fixed in the recess, has realized spacing to first connecting piece and second connecting piece.

The utility model discloses further set up to: the telescopic column is characterized in that a second lug is arranged at the lower end of the telescopic column, a convex wall facing the inner side is arranged at the top end of the limiting groove, and the outer ring of the convex wall is larger than the diameter of the inner ring of the second lug.

Through adopting above-mentioned technical scheme, the setting of second lug and convex wall prevents that flexible post from the spacing inslot cunning to shift out at the in-process that rises, and the convex wall outer lane is greater than second lug inner circle diameter and has realized the smooth and easy slip of flexible post at the spacing inslot.

The utility model discloses further set up to: and the top end of the telescopic column is provided with a round table fixedly connected with the spring.

Through adopting above-mentioned technical scheme, the round platform that flexible capital end set up is convenient for operating personnel to press and is realized the part of first connecting piece and second connecting piece.

The utility model discloses further set up to: the diameter of the circular truncated cone is smaller than that of the limiting groove.

Through adopting above-mentioned technical scheme, the round platform diameter is less than the setting of spacing groove diameter and has realized that the round platform smoothly presses at the spacing inslot.

The utility model discloses further set up to: a first valve is arranged between the water outlet pipe and the centrifugal water pump, and a second valve is arranged between the three-way pressure release valve and the water return pipe.

By adopting the technical scheme, the arrangement of the first valve, the second valve and the third valve prevents the residual water in the centrifugal water pump, the water outlet pipe and the water return pipe from being sprinkled when the pipeline is replaced, so that waste is caused.

The utility model discloses further set up to: and a pressure gauge is arranged between the water outlet pipe and the centrifugal water pump.

Through adopting above-mentioned technical scheme, the setting of manometer has realized the real time monitoring to water pressure in the body.

To sum up, the utility model discloses a beneficial technological effect does:

1. the limiting pieces and the limiting grooves are arranged, so that the pipelines can be conveniently disassembled;

2. by the arrangement of the first valve and the second valve, the residual water in the centrifugal water pump and the return water pipe is prevented from being scattered when the pipeline is replaced, so that waste is caused;

3. through the setting of pressure, realized the real time monitoring of water pressure in the body.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the first and second connectors;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

fig. 4 is a partially enlarged schematic view of the limiting member in fig. 3.

In the figure, 1, a tank body; 2. a sewer pipeline; 3. a filter screen; 4. a centrifugal water pump; 5. a pressure gauge; 6. a first valve; 7. a second valve; 8. a three-way pressure relief valve; 9. a water outlet pipe; 10. a pneumatic control valve; 11. a nozzle; 12. a connecting assembly; 13. a water return pipe; 21. a first connecting member; 22. inserting a rod; 23. A second connecting member; 31. a groove; 32. a first bump; 33. a seal ring; 34. a limiting member; 35. a limiting groove; 36. a through hole; 37. a seal assembly; 41. a second bump; 42. a convex wall; 43. a spring; 44. a circular truncated cone; 45. a telescopic column.

Detailed Description

The utility model discloses a relief valve device, as shown in fig. 1, including a jar body 1, 1 bottom intercommunication of jar body has sewer pipe 2, 2 one end in sewer pipe are connected with centrifugal pump 4's water inlet, be provided with filter screen 3 on the sewer pipe 2, centrifugal pump 4's delivery port is connected to outlet pipe 9, outlet pipe 9 is kept away from 4 one ends of centrifugal pump and is provided with nozzle 11, be provided with gas accuse valve 10 on the nozzle 11, install three-way relief valve 8 on the outlet pipe 9, 8 one end of three-way relief valve is connected with wet return 13, wet return 13 is kept away from 9 one end of outlet pipe and is set up in jar internal.

In order to limit the first connecting piece 21 and the second connecting piece 23, as shown in fig. 1, connecting components 12 are respectively arranged between the water outlet pipe 9 and the centrifugal water pump 4, between the water outlet pipe 9 and the pneumatic control valve 10, and between the three-way pressure release valve 8 and the water return pipe 13, as shown in fig. 2, the connecting components 12 include a first connecting piece 21 and a second connecting piece 23 clamped with the first connecting piece 21, one side of the first connecting piece 21 is connected with an insert rod 22, the second connecting piece 23 is provided with a through hole 36 inserted with the insert rod 22, as shown in fig. 3, the first connecting piece 21 and the second connecting piece 23 are provided with a sealing component 37, the first connecting piece 21 is provided with a groove 31, the second connecting piece 23 is provided with a first convex block 32 abutted against the groove 31, the periphery of the first convex block 32 is sleeved with a sealing ring 33, the second connecting piece 23 is provided with a limiting groove 35 perpendicular to the through hole 36, one end of the insert, as shown in fig. 4, the limiting member 34 includes a limiting groove 35 disposed on the insertion rod 22, a telescopic column 45 is disposed inside the limiting groove 35, a spring 43 is fixed at the bottom of the telescopic column 45, a second protrusion 41 is disposed at the lower end of the telescopic column 45, a protruding wall 42 facing inward is disposed at the top end of the limiting groove 35, the outer ring of the protruding wall 42 is larger than the diameter of the inner ring of the second protrusion 41, a circular truncated cone 44 fixedly connected with the spring 43 is disposed at the top end of the telescopic column 45, and the diameter of the circular truncated cone 44 is smaller than the diameter of.

In order to prevent the residual water in the centrifugal water pump 4 and the water return pipe 13 from spilling on the ground and causing waste when the pipeline is replaced, as shown in fig. 1, a first valve 6 is arranged between the water outlet pipe 9 and the centrifugal water pump 4, and a second valve 7 is arranged between the three-way pressure release valve 8 and the water return pipe 13.

In order to realize the real-time monitoring of the water pressure in the tube body, as shown in fig. 1, a pressure gauge 5 is arranged between the water outlet pipe 9 and the centrifugal water pump 4.

The implementation principle of the embodiment is as follows: when the pressure relief valve normally works, water in the tank body 1 flows out of the sewer pipe 2, enters the centrifugal water pump 4 after passing through the filter screen 3, flows into the water outlet pipe 9 and is sprayed out of the nozzle 11 of the pneumatic control valve 10 under the action of the centrifugal water pump 4, when the nozzle 11 or the pneumatic control valve 10 breaks down, the pipe pressure rises, the three-way valve is opened at the moment, so that the water flows back into the tank body 1 from the water return pipe 13 of the pressure relief valve, when parts need to be replaced among the sewer pipe, the centrifugal water pump 4, the water outlet pipe 9, the pneumatic control valve 10, the three-way valve and the water return pipe 13, an operator presses the circular truncated cone 44, and the circular truncated cone 44 compresses the spring 43 fixed at the bottom of the telescopic column 45 so that the inserted rod 22 is changed from a limiting state to a non-limiting state, and the first connecting; when the installation is needed, the inserted rod 22 on the first connecting piece 21 is inserted into a certain position in the through hole 36 of the second connecting piece 23, and the circular truncated cone 44 limits the first connecting piece 21.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a relief valve device, includes a jar body (1), and jar body (1) bottom intercommunication has sewer pipe (2), is provided with filter screen (3) on sewer pipe (2), sewer pipe (2) one end is passed filter screen (3) and is connected with the water inlet of centrifugal pump (4), be connected with outlet pipe (9) on the delivery port of centrifugal pump (4), centrifugal pump (4) one end is kept away from in outlet pipe (9) is provided with nozzle (11), be provided with gas accuse valve (10) on nozzle (11), install tee bend relief valve (8) on outlet pipe (9), tee bend relief valve (8) one end is connected with wet return (13), outlet pipe (9) one end is kept away from in wet return (13) and sets up inside jar body (1), its characterized in that: between outlet pipe (9) and centrifugal pump (4), between outlet pipe (9) and gas accuse valve (10) and between tee bend relief valve (8) and wet return (13) all be provided with coupling assembling (12), coupling assembling (12) include first connecting piece (21) and with second connecting piece (23) of first connecting piece (21) block, first connecting piece (21) one side is connected with inserted bar (22), is provided with through-hole (36) of pegging graft with inserted bar (22) on second connecting piece (23), be provided with spacing groove (35) of perpendicular to through-hole (36) on second connecting piece (23), inserted bar (22) one end is provided with locating part (34) with spacing groove (35) joint, be provided with seal assembly (37) on first connecting piece (21) and second connecting piece (23).

2. A pressure relief valve apparatus according to claim 1, characterized in that: the sealing assembly (37) comprises a first connecting piece (21) provided with a groove (31), the second connecting piece (23) is provided with a first convex block (32) abutted against the groove (31), and a sealing ring (33) is sleeved on the upper periphery of the first convex block (32).

3. A pressure relief valve apparatus according to claim 1, characterized in that: the limiting part (34) comprises an inserting rod (22) arranged in a limiting groove (35), a telescopic column (45) is arranged in the limiting groove (35), and a spring (43) is fixed at the bottom of the telescopic column (45).

4. A pressure relief valve apparatus according to claim 3, wherein: the telescopic column is characterized in that a second bump (41) is arranged at the lower end of the telescopic column (45), a convex wall (42) facing the inner side is arranged at the top end of the limiting groove (35), and the outer ring of the convex wall (42) is larger than the diameter of the inner ring of the second bump (41).

5. A pressure relief valve apparatus according to claim 4, wherein: the top end of the telescopic column (45) is provided with a round table (44) fixedly connected with the spring (43).

6. A pressure relief valve apparatus according to claim 5, wherein: the diameter of the circular truncated cone (44) is smaller than that of the limiting groove (35).

7. A pressure relief valve apparatus according to claim 1, characterized in that: a first valve (6) is arranged between the water outlet pipe (9) and the centrifugal water pump (4), and a second valve (7) is arranged between the three-way pressure release valve (8) and the water return pipe (13).

8. A pressure relief valve apparatus according to claim 1, characterized in that: and a pressure gauge (5) is arranged between the water outlet pipe (9) and the centrifugal water pump (4).