CN219317718U

CN219317718U - Adjustable safety valve

Info

Publication number: CN219317718U
Application number: CN202320304707.6U
Authority: CN
Inventors: 李亚军
Original assignee: Henan Huanuo Testing Co ltd
Current assignee: Henan Huanuo Testing Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-07-07
Anticipated expiration: 2033-02-24

Abstract

The utility model discloses an adjustable safety valve, which comprises a valve housing and an adjusting unit; a valve housing: the lower end of the valve casing is provided with a valve seat, the middle part of the valve casing is provided with a guide ring, the middle part of the guide ring is connected with a valve core in a sliding way, the upper surface of the valve core is provided with a sealing gasket, the valve core is positioned above the sealing gasket, the upper end of the valve core is provided with a baffle ring, and a pressure relief pipe is arranged at a pressure relief hole of the outer cambered surface of the valve casing; an adjusting unit: the upper end inside the valve casing is set up, the regulating unit lower extreme sets up with the fender ring cooperation, the regulating unit is including pressing seat, the spring, nut board and screw rod, press the inside upper end of seat sliding connection valve casing, the lower extreme activity of pressing the seat has cup jointed the spring, the spring is located the top of fender ring, the nut board sets up in the top of valve casing, the middle part threaded connection of nut board has the screw rod, this adjustable relief valve has two bleeder, can avoid blockking up, the safety in utilization is high, it is directly perceived convenient to open and close pressure regulation simultaneously.

Description

Adjustable safety valve

Technical Field

The utility model relates to the technical field of safety valves, in particular to an adjustable safety valve.

Background

Along with the rapid development of Chinese economic construction, more and more projects are operated in equipment with pressure control, the safety valve is used in view of the requirement of equipment pressure relief, the safety valve plays a vital role in the process of protecting equipment, the safety valve is in a normally closed state under the action of external force, when the pressure of medium in equipment or a pipeline rises to exceed a specified value, the medium in the pipeline or the equipment is prevented from exceeding a specified value by discharging the medium outside a system, the existing safety valve can generally regulate the opening and closing pressure, the compression degree of the internal spring is regulated by a rotating screw rod during regulation, but the deformation of the spring cannot be intuitively displayed, so that the regulation convenience is influenced, meanwhile, the safety valve generally only has one leakage port and lacks protection, and foreign matters outside the use process are easy to enter to block, so that the use safety is influenced.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides an adjustable safety valve which is provided with two leakage ports, can avoid blockage, has high use safety, is intuitive and convenient to open and close pressure regulation, and can effectively solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an adjustable safety valve comprising a valve housing and an adjustment unit;

a valve housing: the lower end of the valve casing is provided with a valve seat, the middle part of the valve casing is provided with a guide ring, the middle part of the guide ring is connected with a valve core in a sliding way, the upper surface of the valve core is provided with a sealing gasket, the valve core is positioned above the sealing gasket, the upper end of the valve core is provided with a baffle ring, and a pressure relief pipe is arranged at a pressure relief hole of the outer cambered surface of the valve casing;

an adjusting unit: the valve is characterized in that the valve is arranged at the upper end of the valve casing, the lower end of the regulating unit is matched with the baffle ring, when the valve is used, the pressure can be automatically released when the internal pressure of the container is too high, meanwhile, two leakage ports are used for collecting solution conveniently, blocking can be avoided, smooth outflow of the solution is guaranteed, the use safety is high, the nut can be rotated to regulate the length of the spring in the use process, the valve core opening and closing pressure is regulated, the use of different pressures is met, the compression state of the spring can be accurately displayed by the graduated scale, and the regulation is convenient.

Further, the adjusting unit comprises a pressing seat, a spring, a nut plate and a screw rod, wherein the pressing seat is connected with the upper end of the inside of the valve casing in a sliding mode, the spring is movably sleeved at the lower end of the pressing seat and located above the baffle ring, the nut plate is arranged above the valve casing, the screw rod is connected with the middle of the nut plate in a threaded mode, the lower end of the screw rod extends to the inside of the pressing seat, and pressure can be applied to the baffle ring.

Further, the adjusting unit further comprises a hand wheel, and the hand wheel is arranged at the upper end of the screw rod, so that the screw rod can be conveniently controlled to rotate.

Further, the adjusting unit further comprises a graduated scale, the graduated scale is arranged on the upper surface of the pressing seat, and the upper end of the graduated scale extends out of the upper surface of the nut plate, so that the state of the spring can be conveniently determined.

Further, the upper end threaded connection of valve casing has the protective housing, and the upper surface of protective housing is equipped with the hexagonal cover, protects inside double-screw bolt.

Further, the pressure release pipe is tee bend pressure release pipe, and the upper end of pressure release pipe is equipped with the U type pipe, and the right-hand member of U type pipe is equipped with the support cover, and the inside lower extreme of support cover is equipped with the protection network, improves the security when using.

Further, the right end threaded connection of pressure release pipe has the shield, prevents the entering of foreign matter.

Compared with the prior art, the utility model has the beneficial effects that: the adjustable safety valve has the following advantages:

1. when the pressure of pipeline or jar internal pressure is higher than the spring, the high-pressure solution will promote the case and upwards slide along the guide ring, the case drives the baffle ring and upwards moves extrusion spring, the case will separate with sealed pad, the high-pressure solution will flow into the decompression pipe through the disk seat and discharge, and then guarantee the security of high-pressure container, the solution will be discharged to outside recovery pipe in, when outside recovery pipe blocks up, the solution can upwards flow into U type pipe and discharge from supporting cover in, the protection network prevents that the toy from entering into the inside of U type pipe, can automatic pressure release when container internal pressure is too high during the use, can avoid blockking up simultaneously when having two bleeder openings to be convenient for the collection of solution, guarantee the smooth outflow of solution, the safety in utilization of relief valve is high.

2. When pressure of pressure release needs to be adjusted, the hexagonal sleeve can be used, the hexagonal sleeve drives the protective shell to rotate and take down the protective shell, then the hand wheel can be rotated, the hand wheel drives the screw rod to rotate, the screw rod moves vertically, the pressing seat can generate vertical displacement, the compression state of the spring changes, the acting force of the spring changes, the pressure pushing the valve core to move also changes along with the change, the pressure of pressure release can be adjusted, the pressing seat can drive the graduated scale to move synchronously, the distance of extension or contraction of the spring can be clearly known, the nut can be rotated to adjust the length of the spring in the using process, the adjustment of the opening and closing pressure of the valve core is realized, the use of different pressures of the safety valve is met, meanwhile, the graduated scale can accurately display the compression state of the spring, and the adjustment of the safety valve is convenient.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

figure 2 is a schematic cross-sectional view of the valve housing of the present utility model.

In the figure: 1 valve casing, 2 disk seat, 3 guide ring, 4 case, 5 keep off the ring, 6 adjusting unit, 61 press seat, 62 spring, 63 nut board, 64 screw rod, 65 hand wheel, 66 scale, 7 pressure release pipe, 8 sealing gasket, 9U formula pipe, 10 shield, 11 supporting cover, 12 protection network, 13 protective housing, 14 hexagonal cover.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, 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.

Referring to fig. 1-2, the present embodiment provides a technical solution: an adjustable safety valve comprises a valve housing 1 and an adjusting unit 6;

valve housing 1: the lower end of the inside of the valve casing is provided with a valve seat 2, the middle part of the valve casing 1 is provided with a guide ring 3, the middle part of the guide ring 3 is slidably connected with a valve core 4, the upper surface of the valve core 4 is provided with a sealing gasket 8, the valve core 4 is positioned above the sealing gasket 8, the upper end of the valve core 4 is provided with a baffle ring 5, the pressure release hole of the outer cambered surface of the valve casing 1 is provided with a pressure release pipe 7, the valve casing 1 is installed on a high-pressure pipeline or a high-pressure tank body in use, high-pressure solution pushes the valve core 4 to slide upwards along the guide ring 3, the valve core 4 drives the baffle ring 5 to move upwards to squeeze a spring 62, the valve core 4 is separated from the sealing gasket 8, the high-pressure solution flows into the pressure release pipe 7 through the valve seat 2 to be discharged, the safety of a high-pressure container is further ensured, the right end of the pressure release pipe 7 is connected with an external recovery pipe, the pressure release pipe 7 is a three-way pressure release pipe, the upper end of the pressure release pipe 7 is provided with a U-shaped pipe 9,U type pipe 9, the lower end of the inside of the support cover 11 is provided with a protective screen 12, the solution is discharged into the external recovery pipe, when the external pipe is blocked, the high-pressure solution flows into the U-shaped pipe 9 and then flows into the support pipe 9 and is required to be discharged into the U-shaped pipe 10 through the support pipe 9, and is required to be discharged from the pressure release pipe 10 when the pressure pipe 9;

an adjusting unit 6: the upper end in valve casing 1 is set up, the regulating unit 6 lower extreme and the cooperation of keeping off ring 5 set up, regulating unit 6 includes presses seat 61, spring 62, nut plate 63 and screw rod 64, press seat 61 sliding connection valve casing 1 inside upper end, the lower extreme activity of pressing seat 61 has cup jointed spring 62, spring 62 is located the top of keeping off ring 5, nut plate 63 sets up in valve casing 1's top, the middle part threaded connection of nut plate 63 has screw rod 64, the lower extreme of screw rod 64 extends to the inside of pressing seat 61, regulating unit 6 still includes hand wheel 65, hand wheel 65 sets up in the upper end of screw rod 64, regulating unit 6 still includes scale 66, then can rotate hand wheel 65, hand wheel 65 drives screw rod 64 rotation, screw rod 64 produces vertical removal, and then press seat 61 can produce vertical displacement, the compression state of spring 62 changes, and then the effort of spring 62 changes, then the pressure that promotes the case 4 removal also can change thereupon, and then can adjust the pressure release, scale 66 sets up in the upper surface of pressing seat 61, the upper end of scale 66 extends the upper surface of scale 63, simultaneously, can drive the pressure of the hexagonal and can be rotated by the protective housing 14 when the pressure that can be rotated by the synchronous, and the protective housing 13 is connected to the side of the protective housing is rotated, and the protective housing is rotated by the side of the protective housing 13, when the protective housing is rotated by the side of the protective housing is 13.

The working principle of the adjustable safety valve provided by the utility model is as follows: when in use, the valve shell 1 is arranged on a high-pressure pipeline or a high-pressure tank body, when the discharged solution needs to be recovered, the dust cover 10 is removed, the right end of the pressure relief pipe 7 is connected with an external recovery pipe, when the pressure in the pipeline or the tank body is higher than the pressure of the spring 62, the high-pressure solution pushes the valve core 4 to slide upwards along the guide ring 3, the valve core 4 drives the baffle ring 5 to move upwards to squeeze the spring 62, the valve core 4 is separated from the sealing gasket 8, the high-pressure solution flows into the pressure relief pipe 7 through the valve seat 2 and is discharged, the safety of a high-pressure container is further ensured, the solution is discharged into the external recovery pipe, when the external recovery pipe is blocked, the solution flows upwards into the U-shaped pipe 9 and is discharged from the support cover 11, the protection network 12 prevents that the toy from entering into the inside of U type pipe 9, when need adjust the pressure of pressure release, can use the spanner to rotate hexagonal cover 14, hexagonal cover 14 drives protective housing 13 rotation and takes off it, then can rotate hand wheel 65, hand wheel 65 drives screw rod 64 rotation, screw rod 64 produces vertical removal, and then press seat 61 can produce vertical displacement, spring 62's compression state changes, and then spring 62's effort changes, then the pressure that promotes case 4 to remove also can change thereupon, and then can adjust the pressure of pressure release, simultaneously press seat 61 can drive scale 66 synchronous movement, and then can know that spring 62 extends or contracts the distance clearly, the regulation is just good.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. An adjustable safety valve, characterized by: comprises a valve housing (1) and an adjusting unit (6);

valve casing (1): the lower end of the valve casing (1) is provided with a valve seat (2), the middle part of the valve casing (1) is provided with a guide ring (3), the middle part of the guide ring (3) is connected with a valve core (4) in a sliding manner, the upper surface of the valve core (4) is provided with a sealing gasket (8), the valve core (4) is positioned above the sealing gasket (8), the upper end of the valve core (4) is provided with a baffle ring (5), and a pressure relief pipe (7) is arranged at a pressure relief hole of the outer cambered surface of the valve casing (1);

an adjusting unit (6): the adjusting unit is arranged at the upper end of the inside of the valve casing (1), and the lower end of the adjusting unit (6) is matched with the baffle ring (5).

2. An adjustable safety valve according to claim 1, wherein: the adjusting unit (6) comprises a pressing seat (61), a spring (62), a nut plate (63) and a screw rod (64), wherein the pressing seat (61) is connected with the upper end of the inside of the valve casing (1) in a sliding mode, the lower end of the pressing seat (61) is movably sleeved with the spring (62), the spring (62) is located above the baffle ring (5), the nut plate (63) is arranged above the valve casing (1), the screw rod (64) is connected with the middle thread of the nut plate (63), and the lower end of the screw rod (64) extends to the inside of the pressing seat (61).

3. An adjustable safety valve according to claim 2, wherein: the adjusting unit (6) further comprises a hand wheel (65), and the hand wheel (65) is arranged at the upper end of the screw rod (64).

4. An adjustable safety valve according to claim 2, wherein: the adjusting unit (6) further comprises a graduated scale (66), the graduated scale (66) is arranged on the upper surface of the pressing seat (61), and the upper end of the graduated scale (66) extends out of the upper surface of the nut plate (63).

5. An adjustable safety valve according to claim 1, wherein: the upper end threaded connection of valve casing (1) has protective housing (13), and the upper surface of protective housing (13) is equipped with hexagonal cover (14).

6. An adjustable safety valve according to claim 1, wherein: the pressure relief pipe (7) is a tee joint pressure relief pipe, the upper end of the pressure relief pipe (7) is provided with a U-shaped pipe (9), the right end of the U-shaped pipe (9) is provided with a supporting cover (11), and the lower end inside the supporting cover (11) is provided with a protective net (12).

7. An adjustable safety valve according to claim 1, wherein: the right end of the pressure relief pipe (7) is connected with a dust cover (10) through threads.