CN211203011U - Anti-blocking spring type safety relief valve - Google Patents

Abstract

The utility model discloses a prevent stifled type spring safety relief valve, including lower valve body, first mounting hole has been seted up to valve body top outer wall center department down, and the welding of first mounting hole inner wall has the input tube, the second mounting hole has been seted up to the valve body lateral wall down, and the welding of second mounting hole inner wall has the output tube, first circular slot has been seted up to valve body top outer wall center department down, and first circular slot bottom inner wall center department has seted up the second circular slot. The utility model discloses a water pressure sensor and telescopic cylinder, after the pressure value that reaches water pressure sensor and set for is opened to the pressure relief valve, telescopic cylinder is down, promote the spring compression, realize the first piston of locking, and then increase the valve opening of relief valve, realize that the relief valve prevents stifled performance, improve the security that the relief valve used, avoid because of the potential safety hazard that does not close and bring after opening, lower valve body, the three-layer bolted construction who goes up valve body and mounting panel connect, but convenience and the economic nature that independent split relief valve of being convenient for overhauld and maintain.

Description

Anti-blocking spring type safety relief valve

Technical Field

The utility model relates to a relief valve technical field especially relates to an anti-blocking type spring safety relief valve.

Background

The pressure relief valve (safety valve) can be automatically opened and closed according to the working pressure of the system, and is generally installed on equipment or a pipeline of a closed system to protect the safety of the system. When the pressure in the equipment or the pipeline exceeds the set pressure of the pressure release valve, the pressure release valve is automatically opened, the medium pressure in the equipment or the pipeline is ensured to be below the set pressure, the equipment and the pipeline are protected, and accidents are prevented.

The pressure relief valve belongs to the automatic valve class, mainly used on boiler, pressure vessel and pipeline, and control pressure is no longer than the specified value, plays important guard action to personal safety and equipment operation, and when the relief valve opened the back, as long as the pressure is higher than the setting value, the discharge medium will constantly leak, but the valve can not carry out automatically regulated according to the pressure value, can cause the damage of valve body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an anti-blocking spring type safety relief valve.

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

an anti-blocking spring type safety relief valve comprises a lower valve body, wherein a first mounting hole is formed in the center of the outer wall of the top of the lower valve body, an input pipe is welded on the inner wall of the first mounting hole, a second mounting hole is formed in the side wall of the lower valve body, an output pipe is welded on the inner wall of the second mounting hole, a first circular groove is formed in the center of the outer wall of the top of the lower valve body, a second circular groove is formed in the center of the inner wall of the bottom of the first circular groove, a third mounting hole communicated with the first mounting hole is formed in the center of the inner wall of the bottom of the second circular groove, a valve core pipe is welded on the inner wall of the third mounting hole, a first piston is connected to the side wall of the first circular groove in a sliding mode, a spring is welded at the center of the outer wall of the top of the first piston, a second piston is welded on the outer wall of the top of the spring, an upper, and thread groove inner wall spiro union has the pillar, the pillar top all has same mounting panel through the bolt fastening, and mounting panel top outer wall has the timer through the bolt fastening, mounting panel bottom outer wall center department has telescopic cylinder through the bolt fastening, and telescopic cylinder bottom outer wall welding has the spliced pole, spliced pole bottom outer wall welding has the third piston.

Preferably, the center of the outer wall of the top of the first piston and the center of the outer wall of the bottom of the first piston are provided with the same through hole, the inner wall of the pipe through hole and the outer wall of the valve core pipe form sliding fit, and the positions, close to the center, of the outer wall of the top of the first piston and the outer wall of the bottom of the first piston are provided with the same leakage hole.

Preferably, a clamping groove is formed in the outer wall of the top of the lower valve body, which is close to the circumference of the first circular groove, and a sealing ring is clamped on the inner wall of the clamping groove.

Preferably, the diameter of the second piston is equal to that of the third piston, and the side walls of the second piston and the third piston are in sliding fit with the inner wall of the hollow part of the upper valve body.

Preferably, the side walls of the ends, far away from the lower valve body, of the input pipe and the output pipe are welded with flanges, and the lower valve body, the input pipe, the output pipe, the valve core pipe and the two flanges are of an integrally formed structure.

Preferably, telescopic cylinder is connected with the switch through the wire, and the switch is connected with microprocessor, microprocessor is connected with the power through the wire, and microprocessor installs in mounting panel top outer wall, the timer is connected with microprocessor through the signal line.

The utility model has the advantages that:

1. according to the anti-blocking spring type safety relief valve, through the arrangement of the water pressure sensor and the telescopic cylinder, when the relief valve is opened to reach a pressure value set by the water pressure sensor, the telescopic cylinder moves downwards to push the spring to compress, so that the first piston is locked, a valve hole of the relief valve is enlarged, the anti-blocking performance of the relief valve is realized, the use safety of the relief valve is improved, and potential safety hazards caused by not closing the relief valve after opening are avoided;

2. this prevent stifled type spring safety relief valve passes through the three-layer bolted construction connection of lower valve body, upper valve body and mounting panel, realizes the independent split of above triplex, and each piston and connecting rod device conveniently take out and change after the split, and then improved convenience and the economic nature that the relief valve overhauld and maintained.

Drawings

Fig. 1 is a schematic view of a cross-sectional structure of an anti-blocking spring type safety relief valve provided by the utility model;

fig. 2 is the utility model provides a prevent stifled schematic structure of preventing of stifled type spring safety relief valve.

In the figure: the hydraulic control valve comprises a lower valve body 1, an input pipe 2, an output pipe 3, a valve core pipe 4, a first piston 5, a leak hole 501, a spring 6, a second piston 7, an upper valve body 8, a support 9, a mounting plate 10, a hydraulic pressure sensor 11, a telescopic cylinder 12, a connecting column 13 and a third piston 14.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-2, an anti-blocking spring type safety relief valve comprises a lower valve body 1, a first mounting hole is formed in the center of the outer wall of the top of the lower valve body 1, an input pipe 2 is welded to the inner wall of the first mounting hole, a second mounting hole is formed in the side wall of the lower valve body 1, an output pipe 3 is welded to the inner wall of the second mounting hole, a first circular groove is formed in the center of the outer wall of the top of the lower valve body 1, a second circular groove is formed in the center of the inner wall of the bottom of the first circular groove, a third mounting hole communicated with the first mounting hole is formed in the center of the inner wall of the bottom of the second circular groove, a valve core pipe 4 is welded to the inner wall of the third mounting hole, a first piston 5 is slidably connected to the side wall of the first circular groove, a spring 6 is welded to the center of the outer wall of the top of the first piston 5, a second, and the outer wall of the top of the upper valve body 8 is provided with thread grooves distributed equidistantly, the inner wall of the thread groove is in threaded connection with a strut 9, the top of the strut 9 is fixed with a same mounting plate 10 through bolts, the outer wall of the top of the mounting plate 10 is fixed with a water pressure sensor 11 through bolts, the center of the outer wall of the bottom of the mounting plate 10 is fixed with a telescopic cylinder 12 through bolts, the outer wall of the bottom of the telescopic cylinder 12 is welded with a connecting column 13, the outer wall of the bottom of the connecting column 13 is welded with a third piston 14, the center of the outer wall of the top and the outer wall of the bottom of the first piston 5 is provided with a same through hole, the inner wall of the through hole is in sliding fit with the outer wall of the valve core pipe 4, the outer wall of the top and the outer wall of the bottom of the first piston 5 are both provided with a same leak hole 501 close to the center, and the lateral wall of second piston 7 and third piston 14 all forms sliding fit with the well kenozooecium inner wall of last valve body 8, the flange dish has all been welded to the one end lateral wall that input tube 2 and output tube 3 keep away from lower valve body 1, input tube 2, output tube 3, case pipe 4 and two flange dishes are the integrated into one piece structure, telescopic cylinder 12 is connected with the switch through the wire, and the switch is connected with microprocessor, microprocessor is connected with the power through the wire, and microprocessor installs in mounting panel 10 top outer wall, water pressure sensor 11 is connected with microprocessor through the signal line.

The working principle is as follows: through the setting of water pressure sensor 11 and telescopic cylinder 12, after the time that reaches water pressure sensor and sets for is opened to the pressure release valve, telescopic cylinder 12 descends, promote the compression of spring 6, realize the first piston 5 of locking, and then close the relief valve, realized that the relief valve is opened the back and regularly closed, improve the security that the relief valve used, avoid because of not closing the potential safety hazard that brings after opening, through lower valve body 1, the three-layer bolted construction of going up valve body 8 and mounting panel 10 is connected, realize the independent split of above triplex, each piston and connecting rod device conveniently take out and change after the split, and then improved convenience and the economic nature that the relief valve overhauld and maintained.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. An anti-blocking spring type safety relief valve comprises a lower valve body (1) and is characterized in that a first mounting hole is formed in the center of the outer wall of the top of the lower valve body (1), an input pipe (2) is welded on the inner wall of the first mounting hole, a second mounting hole is formed in the side wall of the lower valve body (1), an output pipe (3) is welded on the inner wall of the second mounting hole, a first circular groove is formed in the center of the outer wall of the top of the lower valve body (1), a second circular groove is formed in the center of the inner wall of the bottom of the first circular groove, a third mounting hole communicated with the first mounting hole is formed in the center of the inner wall of the bottom of the second circular groove, a valve core pipe (4) is welded on the inner wall of the third mounting hole, a first piston (5) is slidably connected to the side wall of the first circular groove, a spring (6) is welded at the center of the outer wall of the top of, lower valve body (1) top outer wall has last valve body (8) of hollow cylinder structure through the bolt fastening, and goes up valve body (8) top outer wall and consider the thread groove that is equipped with the equidistance and distributes, and thread groove inner wall spiro union has pillar (9), pillar (9) top all has same mounting panel (10) through the bolt fastening, and mounting panel (10) top outer wall has water pressure sensor (11) through the bolt fastening, and water pressure sensor (11) passing signal line is connected with microprocessor, mounting panel (10) bottom outer wall center department has telescopic cylinder (12) through the bolt fastening, and telescopic cylinder (12) bottom outer wall welding has spliced pole (13), spliced pole (13) bottom outer wall welding has third piston (14).

2. The anti-blocking spring type safety relief valve according to claim 1, characterized in that the center of the top outer wall and the bottom outer wall of the first piston (5) is provided with a through hole, the inner wall of the pipe with the through hole is in sliding fit with the outer wall of the valve core pipe (4), and the top outer wall and the bottom outer wall of the first piston (5) are provided with a leakage hole (501) near the center.

3. The anti-blocking spring type safety relief valve according to claim 1, characterized in that a clamping groove is formed in the outer wall of the top of the lower valve body (1) and close to the circumference of the first circular groove, and a sealing ring is clamped on the inner wall of the clamping groove.

4. An anti-blocking spring type relief safety valve according to claim 1, characterized in that the diameter of the second piston (7) is equal to the diameter of the third piston (14), and the side walls of the second piston (7) and the third piston (14) are in sliding fit with the inner wall of the hollow part of the upper valve body (8).

5. The anti-blocking spring type safety relief valve according to claim 1, characterized in that flanges are welded to the side walls of the ends, away from the lower valve body (1), of the input pipe (2) and the output pipe (3), and the lower valve body (1), the input pipe (2), the output pipe (3), the valve core pipe (4) and the two flanges are of an integrally formed structure.

6. The anti-blocking spring type safety relief valve according to claim 1, characterized in that the telescopic cylinder (12) is connected with a switch through a wire, the switch is connected with a microprocessor, the microprocessor is connected with a power supply through a wire, and the microprocessor is installed on the outer wall of the top of the installation plate (10).

Images