Compensation structure of high-pressure flow control valve body

Abstract

The utility model provides a high-pressure flow control valve body compensation structure which comprises a valve body assembly, an adjusting pipe used for installing a pressure adjusting assembly is arranged in the valve body assembly, and the pressure adjusting assembly used for auxiliary adjustment according to flow pressure is installed on the inner side of the adjusting pipe. Compared with the prior art, the pressure regulating valve has the advantages that the valve body assembly, the pressure regulating assembly and the energy accumulator are additionally arranged, the connecting portion of the energy accumulator is connected with the tail end of the front side of the first pressure regulating pipe, the pressure change of fluid conveyed by the valve body acts on the sealing plate, the pressure regulating spring is compressed or rebounded, the regulating pipe is communicated with the first pressure regulating pipe and the second pressure regulating pipe, and the pressure regulating effect is achieved. The pressure compensation effect can be improved by adjusting the sealing plate to be at different positions in the natural state according to the actual fluid pressure, the valve body assembly and the pressure adjusting assembly are additionally arranged, and the upper end base is of a detachable structure, so that the pressure adjusting assembly can be conveniently disassembled and assembled.

Description

Technical Field

[0001] This utility model belongs to the field of flow control valve technology, and specifically relates to a compensation structure for a high-pressure flow control valve body. Background Technology

[0002] A flow control valve is a device used to regulate and control the flow rate of fluids (such as liquids or gases) through pipelines or other transport systems. It adjusts the fluid flow velocity by changing the cross-sectional area of ​​the valve's internal passage, thereby achieving precise flow control. Flow control valves are used to transport various fluids, and in some cases, high-pressure fluids. The flow rate of high-pressure fluids changes due to pressure during transport, leading to flow deviations in high-pressure flow control valves and making precise flow control impossible. While some high-pressure flow control valves incorporate a single backflow pressure regulating structure, such as a pressure regulating pipe connected to the fluid tank, this single pressure regulating pipe structure may still exhibit insufficient pressure regulation responsiveness when fluid pressure changes significantly.

[0003] In summary, the insufficient compensation of the high-pressure flow control valve body causes some problems in its use. Therefore, it is hoped that a new structure can be proposed to solve the above-mentioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-pressure flow control valve body compensation structure to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: a high-pressure flow control valve body compensation structure, comprising: a valve body assembly, wherein the valve body assembly is provided with a regulating pipe for installing a pressure regulating component, a pressure regulating component for auxiliary adjustment according to flow pressure is installed inside the regulating pipe, a pressure regulating pipe one for pressure regulation and guiding fluid is fixedly connected to the lower left of the regulating pipe, a pressure regulating pipe two is fixedly connected to the front side of the regulating pipe, an accumulator is connected to the front end of the pressure regulating pipe one, and a pressure regulating spring for adjusting the extension and contraction according to fluid pressure is provided in the pressure regulating component.

[0006] In a preferred embodiment, a sealing plate for sealing is fixedly connected below the pressure regulating spring. The sealing plate is a movable structure placed inside the regulating tube and sealed against the inner wall of the regulating tube. A pressure regulating seat is fixedly connected above the pressure regulating spring. Changes in fluid pressure cause the pressure regulating spring to compress or rebound, which drives the sealing plate to move up and down, thus completing the auxiliary function of pressure regulation.

[0007] In a preferred embodiment, an adjusting stud for adjusting the position of the sealing plate in its natural state is fixedly connected above the pressure adjusting seat, and an upper end seat is provided above the adjusting tube, with an adjusting threaded hole opened on the upper surface of the upper end seat.

[0008] In a preferred embodiment, the adjusting stud is threadedly connected to the adjusting threaded hole, and the first and second pressure regulating pipes are all interconnected with the adjusting pipe, with the second pressure regulating pipe located above the first pressure regulating pipe. The adjusting stud rotates within the adjusting threaded hole to complete the position of the sealing plate in its natural state.

[0009] In a preferred embodiment, a connecting screw is provided at one front end of the pressure regulating pipe, the connecting screw is threadedly sealed to the upper part of the accumulator, and a positioning tooth is fixedly connected to the outer side of the upper part of the adjusting stud.

[0010] In a preferred embodiment, a valve body is fixedly connected to the lower part of the regulating pipe, and a positioning seat is fixedly connected to the upper right end of the upper seat. An inner hole is opened on the inner side of the positioning seat, and a positioning spring is provided inside the inner hole.

[0011] In a preferred embodiment, a positioning post passes through the center of the positioning spring, and a positioning tooth is fixedly connected to the left side of the positioning post. After the positioning tooth is rotated and adjusted, it meshes with the positioning tooth. After the positioning tooth is rotated and adjusted following the adjusting screw, the external force applied to the positioning post is removed, causing the positioning spring to rebound and drive the positioning tooth to mesh with the positioning tooth.

[0012] In a preferred embodiment, the upper outer end of the regulating tube and the lower outer end of the upper end seat are both fixedly connected to a connecting plate. The two sets of connecting plates are attached to each other and fixed by bolts. A sealing gasket is installed between the two sets of connecting plates. The upper end seat is a detachable structure, which facilitates the disassembly and assembly of the pressure regulating component.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are:

[0014] 1. By adding a valve body assembly, a pressure regulating assembly, and an accumulator, the accumulator connection is connected to the front end of the pressure regulating pipe. The valve body conveys the force of fluid pressure changes on the sealing plate, and causes the pressure regulating spring to compress or rebound, so that the regulating pipe is connected to the pressure regulating pipe and the pressure regulating pipe 1 and the pressure regulating pipe 2, completing the connection with the accumulator or the fluid tank. Moreover, the pressure compensation effect can be improved by adjusting the sealing plate to different positions in its natural state according to the actual fluid pressure.

[0015] 2. By adding valve body components and pressure regulating components, and with the upper end seat being a detachable structure, the pressure regulating components can be easily disassembled and installed. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-pressure flow control valve body compensation structure according to the present invention.

[0018] Figure 2 This is a schematic diagram of the valve body assembly in a high-pressure flow control valve body compensation structure according to this utility model.

[0019] Figure 3 This is a partial cross-sectional schematic diagram of the valve body assembly in the high-pressure flow control valve body compensation structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the pressure regulating component in a high-pressure flow control valve body compensation structure according to this utility model.

[0021] In the diagram, 100-valve body assembly, 101-valve body body, 102-adjusting pipe, 103-connecting plate, 104-upper end seat, 105-adjusting threaded hole, 106-positioning seat, 107-positioning spring, 108-positioning pin, 109-positioning tooth, 110-pressure regulating pipe one, 111-connecting screw head, 112-pressure regulating pipe two;

[0022] 200-Pressure regulating assembly, 201-Pressure regulating seat, 202-Pressure regulating spring, 203-Sealing plate, 204-Adjusting stud, 205-Positioning gear;

[0023] 300-Accumulator. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 4This utility model provides a technical solution: a high-pressure flow control valve body compensation structure, including: a valve body assembly 100, wherein the valve body assembly 100 is provided with an adjustment pipe 102 for installing a pressure adjustment assembly 200, and a pressure adjustment assembly 200 for auxiliary adjustment according to flow pressure is installed inside the adjustment pipe 102.

[0026] A pressure regulating pipe 110 for guiding fluid pressure regulation is fixedly connected to the lower left of the regulating pipe 102. A pressure regulating pipe 212 is fixedly connected to the front side of the regulating pipe 102. An accumulator 300 is connected to the front end of the pressure regulating pipe 110. A pressure regulating spring 202 for adjusting the extension and retraction according to the fluid pressure is provided in the pressure regulating assembly 200.

[0027] A sealing plate 203 for sealing is fixedly connected below the pressure regulating spring 202. The sealing plate 203 is a movable structure placed inside the regulating tube 102 and sealed against the inner wall of the regulating tube 102. A pressure regulating seat 201 is fixedly connected above the pressure regulating spring 202. Changes in fluid pressure cause the pressure regulating spring 202 to compress or rebound, which drives the sealing plate 203 to move up and down, thus completing the auxiliary function of pressure regulation.

[0028] An adjusting stud 204 for adjusting the position of the sealing plate 203 in its natural state is fixedly connected above the pressure regulating seat 201. An upper end seat 104 is provided above the regulating tube 102, and an adjusting threaded hole 105 is provided on the upper surface of the upper end seat 104.

[0029] The adjusting stud 204 is threadedly connected to the adjusting threaded hole 105. The first pressure regulating pipe 110, the second pressure regulating pipe 112 and the adjusting pipe 102 are all interconnected, and the second pressure regulating pipe 112 is located above the first pressure regulating pipe 110. The adjusting stud 204 rotates within the adjusting threaded hole 105 to complete the natural position of the sealing plate 203.

[0030] The front end of the pressure regulating pipe 110 is provided with a connecting screw head 111, which is connected to the accumulator 300 with a threaded seal. The outer side of the adjusting stud 204 is fixedly connected with a positioning tooth 205.

[0031] A valve body 101 is fixedly connected to the lower part of the regulating pipe 102, and a positioning seat 106 is fixedly connected to the upper right end of the upper seat 104. An inner hole is opened on the inner side of the positioning seat 106, and a positioning spring 107 is provided on the inner side of the inner hole.

[0032] A positioning spring 107 has a positioning post 108 passing through its center. A positioning tooth 109 is fixedly connected to the left side of the positioning post 108. After the positioning tooth 205 is rotated and adjusted, it engages with the positioning tooth 109. After the positioning tooth 205 is rotated and adjusted with the adjusting screw 204, the external force applied to the positioning post 108 is removed, causing the positioning spring 107 to rebound and drive the positioning tooth 109 to engage with the positioning tooth 205.

[0033] Please see Figures 1-4 As the first embodiment of this utility model: First, the user can seal the connection of a set of accumulators 300 to the front end of the pressure regulating pipe 110. During the transportation of fluid, the pressure change will squeeze the sealing plate 203 upward, or after the pressure is balanced, the sealing plate 203 will be driven downward by the rebound force of the pressure regulating spring 202, and the regulating pipe 102 will be connected to the pressure regulating pipe 110 and the pressure regulating pipe 212. The fluid will first be transferred to the accumulator 300 through the pressure regulating pipe 110, and when the pressure increases further, the fluid will be returned through the pressure regulating pipe 212. Second, according to the different fluid pressure, the adjusting stud 204 will be rotated in the adjusting threaded hole 105 to adjust the position of the sealing plate 203 in its natural state, thereby improving the pressure compensation effect.

[0034] A connecting plate 103 is fixedly connected to the upper outer end of the regulating pipe 102 and the lower outer end of the upper end seat 104. The two sets of connecting plates 103 are attached to each other and fixed with bolts. A sealing gasket is installed between the two sets of connecting plates 103. The upper end seat 104 is a detachable structure and is fixed with the connecting plate 103.

[0035] Please see Figures 1-3 As a second embodiment of this utility model: Based on the first embodiment above, in the use of pressure regulation and compensation, the pressure regulating spring 202 is used under the reciprocating action of compression and rebound. The upper end seat 104 is a detachable structure installed above the regulating tube 102, and the two sets of connecting plates 103 are fixed by bolts after the sealing gaskets are installed between them, so as to facilitate the disassembly and assembly of the pressure regulating component 200.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-pressure flow control valve body compensation structure, comprising: A valve body assembly (100) is characterized in that: the valve body assembly (100) is provided with a regulating pipe (102) for installing a pressure regulating assembly (200), and a pressure regulating assembly (200) for auxiliary adjustment according to flow pressure is installed inside the regulating pipe (102). The regulating pipe (102) is fixedly connected to the lower left of the regulating pipe (102) to a pressure regulating pipe one (110) for guiding fluid pressure regulation. The regulating pipe two (112) is fixedly connected to the front side of the regulating pipe (102). The accumulator (300) is connected to the front end of the pressure regulating pipe one (110). The pressure regulating assembly (200) is provided with a pressure regulating spring (202) for adjusting the extension and contraction according to the fluid pressure.

2. The high-pressure flow control valve body compensation structure as described in claim 1, characterized in that: A sealing plate (203) for sealing is fixedly connected below the pressure regulating spring (202). The sealing plate (203) is in a movable structure and is placed inside the regulating tube (102) and is sealed and fitted to the inner wall of the regulating tube (102). A pressure regulating seat (201) is fixedly connected above the pressure regulating spring (202).

3. The high-pressure flow control valve body compensation structure as described in claim 2, characterized in that: An adjusting stud (204) for adjusting the position of the sealing plate (203) in the natural state is fixedly connected above the pressure regulating seat (201). An upper end seat (104) is provided above the regulating tube (102), and an adjusting threaded hole (105) is opened on the upper surface of the upper end seat (104).

4. The high-pressure flow control valve body compensation structure as described in claim 3, characterized in that: The adjusting stud (204) is threadedly connected to the adjusting threaded hole (105). The first pressure regulating pipe (110), the second pressure regulating pipe (112), and the adjusting pipe (102) are all interconnected, and the second pressure regulating pipe (112) is located above the first pressure regulating pipe (110).

5. The high-pressure flow control valve body compensation structure as described in claim 4, characterized in that: The front end of the pressure regulating pipe (110) is provided with a connecting screw (111), which is threadedly sealed to the upper part of the accumulator (300), and a positioning tooth (205) is fixedly connected to the upper outer side of the adjusting stud (204).

6. The high-pressure flow control valve body compensation structure as described in claim 5, characterized in that: The valve body (101) is fixedly connected below the regulating pipe (102), and the positioning seat (106) is fixedly connected above the right end of the upper end seat (104). The positioning seat (106) has an inner hole on its inner side, and a positioning spring (107) is provided inside the inner hole.

7. The high-pressure flow control valve body compensation structure as described in claim 6, characterized in that: The positioning spring (107) has a positioning post (108) passing through its center. The positioning post (108) has a positioning tooth (109) fixedly connected to its left side. The positioning tooth (205) engages with the positioning tooth (109) after rotation adjustment.

8. The high-pressure flow control valve body compensation structure as described in claim 2, characterized in that: The upper outer end of the regulating tube (102) and the lower outer end of the upper seat (104) are both fixedly connected to a connecting plate (103). The two sets of connecting plates (103) are attached to each other and fixed by bolts. A sealing gasket is installed between the two sets of connecting plates (103).

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