CN219119950U

CN219119950U - High-pressure squirrel-cage type multilayer pressure-reducing and noise-reducing regulating valve

Info

Publication number: CN219119950U
Application number: CN202223471543.0U
Authority: CN
Inventors: 程路; 李庆; 张宏; 王持
Original assignee: Xuzhou Arca Control Valve Co ltd
Current assignee: Xuzhou Arca Control Valve Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-02
Anticipated expiration: 2032-12-26

Abstract

The utility model relates to a high-pressure squirrel-cage type multilayer pressure-reducing and noise-reducing regulating valve which comprises a valve body, a winding gasket I, a valve seat assembly, a lower valve cage assembly, a sealing ring, a valve core, an upper valve cage, a winding gasket II, a valve cover, a valve rod and a lower travel indicator, wherein the valve body is provided with a valve seat; the valve body one end is equipped with the medium import, the other end is equipped with the medium export, the valve gap is through linking to each other with the valve body, valve seat subassembly, lower valve cage subassembly, sealing washer and last valve cage set up between medium import and medium export, lower valve cage subassembly, sealing washer and last valve cage are located the above of valve seat subassembly, the sealing washer is located between lower valve cage subassembly and the last valve cage, the valve rod is connected at the case top, the case sets up in the inside at last valve cage, the sealing washer, lower valve cage subassembly and valve seat subassembly, the case can utilize the sealing washer, go up valve cage and lower valve cage subassembly and lead and go up straight reciprocating motion about sealing washer, the internal surface of going up valve cage and lower valve cage subassembly and in the valve seat subassembly. The utility model has small volume, light weight, good interchangeability and convenient processing and manufacturing.

Description

High-pressure squirrel-cage type multilayer pressure-reducing and noise-reducing regulating valve

Technical Field

The utility model relates to a high-pressure squirrel-cage type multilayer pressure-reducing and noise-reducing regulating valve, and belongs to the technical field of fluid control.

Background

The traditional pressure-reducing noise-reducing regulating valve mainly comprises a valve body, a valve cover, a valve core, a valve rod, a valve cage, a filler, a gasket and other parts. One end of the valve body is provided with an inlet, and the other end is provided with an outlet. The small holes with different diameters are processed on the periphery of the valve cage, and the number of the small holes on the valve cage can be tens to hundreds according to the requirement of the flowing capacity. The valve core can move up and down in the valve cage by utilizing the guide of the valve cage. The valve has a older structure, when fluid medium in the valve passes through, the pressure reduction and noise reduction effects are not ideal, under the severe working conditions of high pressure difference and high flow velocity, the valve internal parts are extremely easy to produce erosion damage, the produced noise is large, the leakage quantity is large, and the service life is short.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the high-pressure squirrel-cage type multi-layer pressure-reducing noise-reducing regulating valve, which overcomes the defects of high noise, short service life and the like of the existing regulating valve under the severe working conditions of high pressure difference and high flow rate.

The utility model is realized by the following technical scheme: a high-pressure squirrel-cage type multilayer pressure-reducing noise-reducing regulating valve is characterized in that: the valve comprises a valve body, a winding gasket I, a valve seat assembly, a lower valve cage assembly, a sealing ring, a valve core, an upper valve cage, a winding gasket II, a valve cover, a valve rod and a lower travel indicator.

One end of the valve body is provided with a medium inlet, the other end of the valve body is provided with a medium outlet, the valve cover is connected with the valve body, the valve seat assembly, the lower valve cage assembly, the sealing ring and the upper valve cage are arranged between the medium inlet and the medium outlet, the lower valve cage assembly, the sealing ring and the upper valve cage are positioned above the valve seat assembly, the sealing ring is positioned between the lower valve cage assembly and the upper valve cage, the top of the valve core is connected with the valve rod, the valve core is arranged inside the upper valve cage, the sealing ring, the lower valve cage assembly and the valve seat assembly, and the valve core can guide by utilizing the sealing ring, the upper valve cage and the lower valve cage assembly and can linearly reciprocate up and down in the inner surfaces of the sealing ring, the upper valve cage and the lower valve cage assembly and the valve seat assembly.

The valve rod and the valve cover are sealed by adopting a packing, a packing cushion is arranged at the bottom of the packing, a cushion block is arranged in the packing, a packing gland is arranged at the top of the packing, and a disc spring and a packing gland nut are arranged at the top of the packing gland.

The uppermost end of the valve rod is connected with a lower travel indicator, and the lower travel indicator is matched and connected with the executing mechanism.

The valve seat assembly on be equipped with the cage of making an uproar of two-layer, be equipped with the cage of making an uproar of six layers on the lower valve cage assembly, be equipped with the cage of making an uproar of one layer on the case, the cage of making an uproar of two-layer, six layers fall and make an uproar of making an uproar all are equipped with a lot of symmetrical apertures on cage of making an uproar of two-layer, six layers fall and the cage of making an uproar of one layer fall, the aperture is arranged and is separated and set up on the cage of making an uproar of every layer.

The channel from the medium inlet to the medium outlet of the valve body is S streamline.

The sealing ring is assembled between the lower valve cage assembly and the upper valve cage, and is a special low-leakage sealing ring with high temperature resistance, high pressure resistance and small expansion.

The beneficial effects of the utility model are as follows: the utility model has small volume, light weight, good interchangeability and convenient processing and manufacturing. The regulating valve with the same caliber specification is provided with valve internals with various rated flow, and can meet various process operation requirements only by replacing part of parts. The structure is advanced and reasonable, and the fluid pump has unique symmetrical small-hole fluid channels, so that the fluid is depressurized layer by layer for multiple times, the flow speed is controlled, the noise is reduced, the scouring resistance is realized, the cavitation is prevented, and the vibration is prevented. Good regulation performance and tight closing. The installation and the disassembly are convenient, the number of vulnerable parts is small, and the maintenance is simple.

Drawings

The utility model is further described below with reference to the drawings and examples.

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

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1;

FIG. 4 is a schematic structural view of a valve seat assembly of the present utility model;

FIG. 5 is a cross-sectional view of C-C of FIG. 4;

FIG. 6 is a diagram of the external configuration of the valve seat;

FIG. 7 is a layout development of the valve seat orifice K of FIG. 6;

FIG. 8 is a schematic illustration of the structure of the outer cage of the two-layer noise reduction cage of the valve seat assembly;

FIG. 9 is an expanded view of the aperture K of the outer cage of the two-layer noise reduction cage of FIG. 8 in a layout;

FIG. 10 is a schematic illustration of the structure of the lower cage assembly of the present utility model;

FIG. 11 is a D-D sectional view of FIG. 10;

FIG. 12 is a schematic illustration of the structure of the valve cartridge and valve stem of the present utility model;

FIG. 13 is a schematic view of the valve cartridge of the present utility model;

fig. 14 is an expanded view of the E-directional layout of the spool apertures of fig. 13.

In the figure: 1. a valve body; 2. winding a gasket I; 3. a valve seat assembly; 4. a lower cage assembly; 5. a seal ring; 6. a valve core; 7. an upper cage; 8. winding a gasket II; 9. a valve cover; 10. a valve stem; 11. a downstroke indicator; 12. a medium inlet; 13. a medium outlet; 14. a filler; 15. a filler pad; 16. a cushion block; 17. a packing gland; 18. a disc spring; 19. a gland nut; 20. a two-layer noise reduction cage; 21. six layers of noise reduction cages; 22. a layer of noise reduction cage; 23. and (3) small holes.

Detailed Description

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.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The high-pressure squirrel-cage type multi-layer pressure-reducing and noise-reducing regulating valve as shown in fig. 1 to 14 is characterized in that: the valve comprises a valve body 1, a winding gasket I2, a valve seat assembly 3, a lower valve cage assembly 4, a sealing ring 5, a valve core 6, an upper valve cage 7, a winding gasket II 8, a valve cover 9, a valve rod 10 and a lower travel indicator 11.

One end of the valve body 1 is provided with a medium inlet 12, the other end of the valve body 1 is provided with a medium outlet 13, the valve cover 9 is connected with the valve body 1, the valve seat assembly 3, the lower valve cage assembly 4, the sealing ring 5 and the upper valve cage 7 are arranged between the medium inlet 12 and the medium outlet 13, the lower valve cage assembly 4, the sealing ring 5 and the upper valve cage 7 are positioned above the valve seat assembly 3, the sealing ring 5 is positioned between the lower valve cage assembly 4 and the upper valve cage 7, the top of the valve core 6 is connected with the valve rod 10, the valve core 6 is arranged inside the upper valve cage 7, the sealing ring 5, the lower valve cage assembly 4 and the valve seat assembly 3, and the valve core 6 can guide by utilizing the sealing ring 5, the upper valve cage 7 and the lower valve cage assembly 4 and linearly reciprocate up and down in the inner surfaces of the sealing ring 5, the upper valve cage 7 and the lower valve cage assembly 4 and the valve seat assembly 3.

The valve rod 10 and the valve cover 9 are sealed by adopting a packing 14, a packing pad 15 is arranged at the bottom of the packing 14, a cushion block 16 is arranged in the packing 14, a packing gland 17 is arranged at the top of the packing 14, and a disc spring 18 and a packing gland nut 19 are arranged at the top of the packing gland 17.

The uppermost end of the valve rod 10 is connected with a downstroke indicator 11, and the downstroke indicator 11 is matched and connected with an executing mechanism.

The valve seat assembly 3 on be equipped with the cage of making an uproar 20 of two-layer, be equipped with six layers of cage 21 of making an uproar on the lower valve cage assembly 4, be equipped with one deck cage of making an uproar 22 of making an uproar on case 6, two-layer cage 20 of making an uproar, six layers of cage 21 and one deck cage 22 of making an uproar fall all are equipped with a lot of symmetrical aperture 23, aperture 23 arranges the separation and sets up on the cage of making an uproar of each layer. The holes 23 are properly spaced and arranged to effectively control the flow rate of the medium, so that the sound waves collide with each other before entering the holes 23, thereby consuming energy and reducing the fluid pressure, and further achieving the purposes of pressure reduction, noise reduction and vibration resistance.

The passage from the medium inlet 12 to the medium outlet 13 of the valve body 1 is S-streamline.

The sealing ring 5 is assembled between the lower valve cage assembly 4 and the upper valve cage 7, and the sealing ring 5 is a special low-leakage sealing ring with high temperature resistance, high pressure resistance and small expansion.

Fluid medium enters from a medium inlet 12 of the valve body 1, passes through a first layer of small Kong Jiangzao cage from the side surface of the lower valve cage assembly 4 to be throttled, and then sequentially enters into a second layer, a third layer, a fourth layer, a fifth layer and a sixth layer of small Kong Jiangzao cage to be throttled; after changing the direction, the small Kong Jiangzao cage entering the valve core 6 is throttled in a layer; finally, the two-layer throttling is carried out through the two-layer noise reduction cage of the valve seat assembly 3, and then the two-layer throttling flows out of the medium outlet of the valve body.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A high-pressure squirrel-cage type multilayer pressure-reducing noise-reducing regulating valve is characterized in that: the valve comprises a valve body (1), a winding gasket I (2), a valve seat assembly (3), a lower valve cage assembly (4), a sealing ring (5), a valve core (6), an upper valve cage (7), a winding gasket II (8), a valve cover (9), a valve rod (10) and a lower travel indicator (11);

one end of valve body (1) is equipped with medium import (12), the other end is equipped with medium export (13), valve gap (9) link to each other through with valve body (1), disk seat subassembly (3), lower valve cage subassembly (4), sealing washer (5) and go up valve cage (7) and set up between medium import (12) and medium export (13), lower valve cage subassembly (4), sealing washer (5) and go up valve cage (7) and lie in the top of disk seat subassembly (3), sealing washer (5) lie in down between valve cage subassembly (4) and last valve cage (7), valve rod (10) are connected at the top of case (6), case (6) set up in last valve cage (7), sealing washer (5), the inside of lower valve cage subassembly (4) and disk seat subassembly (3), case (6) can utilize sealing washer (5), go up valve cage (7) and lower valve cage subassembly (4) to lead and go up and reciprocate in the internal surface of sealing washer (5), upper valve cage subassembly (7) and lower valve cage subassembly (4) and straight line.

2. The high-pressure squirrel-cage multi-layer pressure reducing and noise reducing regulating valve according to claim 1, wherein: the valve rod (10) and the valve cover (9) are sealed by adopting a packing (14), a packing pad (15) is arranged at the bottom of the packing (14), a cushion block (16) is arranged in the packing (14), a packing gland (17) is arranged at the top of the packing (14), and a disc spring (18) and a packing gland nut (19) are arranged at the top of the packing gland (17).

3. The high-pressure squirrel-cage multi-layer pressure reducing and noise reducing regulating valve according to claim 1, wherein: the uppermost end of the valve rod (10) is connected with a downstroke indicator (11), and the downstroke indicator (11) is matched and connected with the executing mechanism.

4. The high-pressure squirrel-cage multi-layer pressure reducing and noise reducing regulating valve according to claim 1, wherein: the valve seat assembly (3) is provided with two layers of noise reduction cages (20), the lower valve cage assembly (4) is provided with six layers of noise reduction cages (21), the valve core (6) is provided with one layer of noise reduction cage (22), the two-layer noise reduction cage (20), the six-layer noise reduction cage (21) and the one-layer noise reduction cage (22) are all provided with a plurality of symmetrical small holes (23), and the small holes (23) are arranged and separated on the noise reduction cage of each layer.

5. The high-pressure squirrel-cage multi-layer pressure reducing and noise reducing regulating valve according to claim 1, wherein: the channel from the medium inlet (12) to the medium outlet (13) of the valve body (1) is S streamline.

6. The high-pressure squirrel-cage multi-layer pressure reducing and noise reducing regulating valve according to claim 1, wherein: the sealing ring (5) is assembled between the lower valve cage assembly (4) and the upper valve cage (7), and the sealing ring (5) is a special low-leakage sealing ring with high temperature resistance, high pressure resistance and small expansion.