CN216242557U

CN216242557U - Pressure reducing valve with pressure regulation and control and pressure limiting setting functions

Info

Publication number: CN216242557U
Application number: CN202122657433.2U
Authority: CN
Inventors: 张宗锋
Original assignee: Exxon Industries Huizhou Co ltd
Current assignee: Exxon Industries Huizhou Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-04-08
Anticipated expiration: 2031-11-02

Abstract

The utility model relates to the technical field of pressure reducing valves, in particular to a pressure reducing valve with pressure regulation and pressure limiting settings, which comprises a pressure reducing valve body, wherein the pressure reducing valve body is fixedly connected with a filter box through an inflow pipe, the right end face of the filter box is provided with a flushing hole, and the flushing box is arranged in the flushing hole.

Description

Pressure reducing valve with pressure regulation and control and pressure limiting setting functions

Technical Field

The utility model relates to the technical field of pressure reducing valves, in particular to a pressure reducing valve with pressure regulation and pressure limiting setting functions.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure through regulation and leads the outlet pressure to be automatically kept stable by relying on the energy of the medium. The conventional pressure reducing valve is lack of pressure regulation and control, pressure limiting setting and normal work influence caused by impurities, and the pressure reducing requirements of different devices cannot be met. A pressure reducing valve with pressure regulation and pressure limiting setting of the prior patent No. CN211474983U has the functions of pressure relief amount control, pressure limiting setting and filtering sundries. However, when the filter screen is cleaned regularly to prevent blockage, the whole valve body needs to be detached, and the filter screen is not easy to clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that a filter screen is inconvenient to clean in the prior art, and provides a pressure reducing valve with pressure regulation and control and pressure limiting setting.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the pressure reducing valve with the pressure regulation and control and the pressure limiting setting comprises a pressure reducing valve body, wherein the pressure reducing valve body is fixedly connected with a filter box through a flow inlet pipe, a flushing hole is formed in the right end face of the filter box, the flushing box is arranged inside the flushing hole, the right end of the flushing box is connected with the flow inlet pipe through a return pipe, a valve is arranged on the middle section of the return pipe, a conversion disc is rotatably arranged inside the filter box, the left end face of the conversion disc is rotatably connected with a filter box cover, the outer wall of the filter box cover is hermetically connected with the filter box, a flow inlet which is positioned right left of the flow inlet pipe is formed in the left end face of the filter box cover, a connecting flange is arranged at the left end of the flow inlet, a sewage discharge outlet is formed in the left end face of the filter box cover, a rotating device is arranged on the left end face of the conversion disc, and three mounting holes are formed in the circumference of the front end face of the conversion disc in an integral row, and the inside of three mounting holes all is fixed and is provided with the filter screen, practises wantonly the filter screen is located the flow inlet and the drain right-hand side respectively.

Preferably, rotating device is including being located the pivot on the change-over dish left end face, the left end of pivot runs through the filter box lid and extends to the left side of filter box lid, the left end outer wall fixedly connected with knob of pivot.

Preferably, the inside of drain is equipped with dustproof stopper, the right-hand member embedding of dustproof stopper is in the mounting hole of conversion dish, the left end face fixedly connected with elastic webbing of dustproof stopper, the lower extreme fixed connection of elastic webbing filters the lid.

The pressure reducing valve with the pressure regulation and control function and the pressure limiting setting function has the advantages that: this kind of relief pressure valve that possesses pressure regulation and control and pressure limiting and set for can carry out periodic cleaning to the filter screen and avoid blockking up, and need not stop work and pull down whole relief pressure valve when wasing the filter screen, does not influence this kind of normal work that possesses the relief pressure valve that pressure regulation and control and pressure limiting set for, takes off 120 degrees rotation pivots after the dust plug and opens the valve again and can accomplish the washing, washs convenient and fast more.

Drawings

FIG. 1 is a schematic structural diagram of a pressure reducing valve with pressure regulation and control and pressure limit setting according to the present invention;

fig. 2 is an exploded view of a pressure relief valve with pressure regulation and control and pressure limit setting according to the present invention.

In the figure: 1. a rotating shaft; 2. a knob; 3. connecting flanges; 4. a flow inlet; 5. a filter cartridge; 6. an inlet pipe; 7. a pressure reducing valve body; 8. a valve; 9. a return pipe; 10. flushing the box; 11. a dust plug; 12. an elastic band; 13. a sewage draining outlet; 14. a filter box cover; 15. a switching disk; 16. and (4) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, a pressure reducing valve with pressure regulation and pressure limiting setting comprises a pressure reducing valve body 7, the pressure reducing valve body 7 is fixedly connected with a filter box 5 through a flow inlet pipe 6, a flushing hole is arranged on the right end face of the filter box 5, a flushing box 10 is arranged inside the flushing hole, the right end of the flushing box 10 is connected with the flow inlet pipe 6 through a return pipe 9, a valve 8 is arranged on the middle section of the return pipe 9, a conversion disc 15 is rotatably arranged inside the filter box 5, a filter box cover 14 is rotatably connected to the left end face of the conversion disc 15, the outer wall of the filter box cover 14 is hermetically connected with the filter box 5, a flow inlet 4 positioned right left of the flow inlet pipe 6 is arranged on the left end face of the filter box cover 14, a connecting flange 3 is arranged on the left end face of the filter box cover 14, a drain 13 is arranged on the left end face of the conversion disc 15, three mounting holes are arranged on the circumference of the front end face of the conversion disc 15 in an array, and the inside of three mounting hole all is fixed and is provided with filter screen 16, it is right-hand right that arbitrary exercise a plurality of filter screens 16 is located influent stream mouth 4 and drain 13 respectively, rotating device is including being located pivot 1 on the 15 left end face of switching disk, the left end of pivot 1 runs through filtration lid 14 and extends to the left side of filtering lid 14, the left end outer wall fixedly connected with knob 2 of pivot 1, the inside of drain 13 is equipped with dustproof stopper 11, the right-hand member embedding of dustproof stopper 11 is in the mounting hole of switching disk 15, the left end face fixed connection elastic webbing 12 of dustproof stopper 11, the lower extreme fixed connection of elastic webbing 12 filters lid 14.

The working principle is as follows: the fluid flowing through the inlet 4, the filter box 5 and the inlet pipe 6 is filtered by a filter screen 16 right at the inlet 4; when the filter screen 16 is cleaned, the dustproof plug 11 is taken down, the rotating shaft 1 and the conversion disc 15 are rotated by 120 degrees through the knob 2, the filter screen 16 right above the sewage inlet 4 is rotated to right of the sewage outlet 13, and the clean filter screen 16 cleaned last time is rotated to right of the sewage inlet 4 for continuous filtration; and opening the valve 8, allowing the fluid to enter the return pipe 9 and the flushing box 10 to backflush the filter screen 16 which is just right above the sewage outlet 13, removing impurities under filtering to be replaced next time, and discharging the sewage through the sewage outlet 13.

This kind of relief pressure valve that possesses pressure regulation and control and pressure limiting and set for can wash regularly to filter screen 16 and avoid blockking up, and need not stop work and pull down whole relief pressure valve when wasing filter screen 16, does not influence the normal work of this kind of relief pressure valve that possesses pressure regulation and control and pressure limiting and set for, 120 degrees rotation pivot 1 after taking off dustproof stopper 11 opens valve 8 again and can accomplish the washing, washs convenient and fast more.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The pressure reducing valve with the pressure regulation and control and the pressure limiting setting comprises a pressure reducing valve body (7) and is characterized in that the pressure reducing valve body (7) is fixedly connected with a filter box (5) through a flow inlet pipe (6), a flushing hole is formed in the right end face of the filter box (5), a flushing box (10) is arranged inside the flushing hole, the right end of the flushing box (10) is connected with the flow inlet pipe (6) through a return pipe (9), a valve (8) is arranged on the middle section of the return pipe (9), a conversion disc (15) is rotatably arranged inside the filter box (5), the left end face of the conversion disc (15) is rotatably connected with a filter box cover (14), the outer wall of the filter box cover (14) is hermetically connected with the filter box (5), a flow inlet (4) which is positioned right to the left side of the flow inlet pipe (6) is formed in the left end face of the filter box cover (14), and a connecting flange (3) is arranged at the left end of the flow inlet (4), the left end face of filter box cover (14) has been seted up drain (13), the left end face of change-over dish (15) is equipped with rotating device, three mounting hole has been seted up to the whole row of preceding terminal surface circumference of change-over dish (15), and the inside of three mounting hole all is fixed filter screen (16) of being provided with, practises wantonly filter screen (16) are located the right-hand side of influent stream mouth (4) and drain (13) respectively.

2. The pressure reducing valve with pressure regulation and control and pressure limiting setting of claim 1, characterized in that the rotating device comprises a rotating shaft (1) located on the left end face of the switching disc (15), the left end of the rotating shaft (1) penetrates through the filter box cover (14) and extends to the left side of the filter box cover (14), and the outer wall of the left end of the rotating shaft (1) is fixedly connected with a knob (2).

3. The pressure reducing valve with pressure regulation and control and pressure limiting setting of claim 1 is characterized in that a dustproof plug (11) is arranged inside the sewage draining outlet (13), the right end of the dustproof plug (11) is embedded into a mounting hole of a conversion disc (15), an elastic belt (12) is fixedly connected to the left end face of the dustproof plug (11), and the lower end of the elastic belt (12) is fixedly connected with a filter box cover (14).