Regulating valve with inlet flow limiting and buffering functions

Abstract

The utility model discloses a regulating valve with an inlet flow limiting and buffering function, which comprises a regulating valve main body, one end of the regulating valve main body is fixedly connected with a liquid inlet main body, one end of the regulating valve main body is fixedly connected with a liquid outlet main body, a water passing channel is arranged in the regulating valve main body, and a water inlet channel is arranged in the liquid inlet main body. A water outlet channel is formed in the liquid outlet main body, and the water passing channel, the water inlet channel and the water outlet channel are communicated. The adjusting assembly is arranged and used for adjusting the flow of water flow entering the water outlet channel from the water passing channel, when closing is needed, the threaded rod is rotated by rotating the handle, then the adjusting rubber plug is adjusted to move to the inner bottom end of the vertical communicating groove, and then the water passing channel is blocked; liquid in the water inlet channel is conveyed into the annular sliding groove along the arc-shaped communicating groove and then conveyed into the water passing channel through the vertical communicating groove, multiple times of buffering on the liquid are achieved, and the service life of the adjusting valve is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a regulating valve with an inlet flow limiting buffer function. Background Art

[0002] The existing high-pressure water systems in the domestic power industry all use high-pressure differential control valves. The high-pressure differential control valve includes a valve cage, which is in the shape of multiple sleeves that are connected to each other from the inside to the outside. As the parameters of the unit increase, the pressure at the outlet of the water pump increases accordingly, and the pressure difference before and after the control valve also increases accordingly. During operation, the pressure difference before and after the valve is high and exceeds 30Mpa. When running at low load, it has to withstand the erosion of small flow of water. If the number of pressure reduction stages in the high-pressure differential control valve is small, strong cavitation will often occur at the final stage of the pressure reduction, causing serious damage to the pressure reduction components and valve core components, causing wear marks, deep grooves and pits inside the valve disc and valve seat of the control valve, which will not only reduce the flow of the control valve, but also generate noise, vibration and damage to the equipment, affecting the performance and life of the valve.

[0003] During the use of the existing regulating valve, the pressure of the liquid in the valve is too high, so the liquid in the valve body directly scours the valve body and the valve core. When the liquid pressure is too high, the impact pressure is large, which causes the valve body and the valve core to wear. Severe wear will cause leakage at the seal, which will cause the valve to fail to work normally and have a short service life. Therefore, it is necessary to propose a regulating valve with an inlet flow limiting buffer function. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a regulating valve with an inlet flow limiting buffer function.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A regulating valve with an inlet flow limiting and buffering function comprises a regulating valve body, one end of the regulating valve body is fixedly connected to a liquid inlet body, one end of the regulating valve body is fixedly connected to a liquid outlet body, a water passage is provided in the regulating valve body, a water inlet channel is provided in the liquid inlet body, a water outlet channel is provided in the liquid outlet body, the water passage, the water inlet channel and the water outlet channel are connected, an adjusting component is provided in the regulating valve body, and a buffer component is provided in the liquid inlet body.

[0007] Preferably, the regulating assembly comprises a regulating groove provided in the regulating valve body, the regulating groove being arranged perpendicularly to the water passage, an regulating rubber plug being movably arranged in the regulating groove, a threaded rod being fixedly installed on the top of the regulating rubber plug, the threaded rod being rotatably penetrated to the outside of the regulating valve body, and a rotating handle being fixedly installed on the top of the threaded rod;

[0008] It is used to adjust the flow of water from the water passage into the water outlet passage. When it needs to be closed, the threaded rod is rotated by turning the handle, and then the regulating rubber plug is adjusted to move to the bottom end of the vertical connecting groove, thereby blocking the water passage.

[0009] Preferably, the buffer assembly comprises an annular chute provided at the bottom end of the liquid inlet body, a plurality of arc-shaped connecting grooves are provided in the liquid inlet body, the arc-shaped connecting grooves connect the water inlet channel and the annular chute, an annular block is movably provided in the annular chute, a plurality of vertical connecting grooves are provided in the liquid inlet body, the vertical connecting grooves connect the water inlet channel and the annular chute, and a functional spring is elastically connected between the annular block and the inner side wall of the annular chute;

[0010] It is used to transport the liquid in the water inlet channel along the arc connecting groove to the annular slide groove, and then transport it to the water passage through the vertical connecting groove. When the liquid enters the arc connecting groove, the liquid is buffered for the first time. When the liquid contacts the annular block, the impact force generated causes the annular block to compress the functional spring, thereby achieving a second buffering of the liquid. When the liquid enters the water passage through the vertical connecting groove, the liquid intersects, thereby achieving a third buffering of the liquid.

[0011] Preferably, one end of the liquid inlet body away from the regulating valve body is connected to a water inlet pipe, and one end of the liquid outlet body away from the regulating valve body is connected to a water outlet pipe.

[0012] The utility model has the following beneficial effects:

[0013] 1. By setting an adjustment component, it is used to adjust the flow of water from the water passage into the water outlet passage. When it needs to be closed, the threaded rod is rotated by turning the handle, and then the adjustment rubber plug is adjusted to move to the bottom end of the vertical connecting groove, thereby blocking the water passage.

[0014] 2. By setting up a buffer component, the liquid in the water inlet channel is transported along the arc-shaped connecting groove to the annular chute, and then transported to the water passage through the vertical connecting groove, thereby achieving multiple buffering of the liquid, avoiding excessive pressure of the liquid in the valve, and ensuring the service life of the regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure of a regulating valve with an inlet flow limiting buffer function proposed by the utility model;

[0016] Figure 2 This is a schematic cross-sectional structure diagram of a regulating valve with an inlet flow limiting buffer function proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the main body of the regulating valve of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the buffer component of the utility model.

[0019] In the figure: 1. regulating valve body; 11. water passage; 2. liquid inlet body; 21. water inlet channel; 3. liquid outlet body; 31. water outlet channel; 4. adjusting assembly; 41. adjusting groove; 42. adjusting rubber plug; 43. threaded rod; 44. rotating handle; 5. buffer assembly; 51. annular slide groove; 52. arc-shaped connecting groove; 53. vertical connecting groove; 54. annular block; 55. functional spring; 6. water inlet pipe; 7. water outlet pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Reference Figure 1-4 A regulating valve with an inlet flow limiting and buffering function comprises a regulating valve body 1, one end of the regulating valve body 1 is fixedly connected to a liquid inlet body 2, one end of the regulating valve body 1 is fixedly connected to a liquid outlet body 3, a water passage 11 is provided in the regulating valve body 1, a water inlet channel 21 is provided in the liquid inlet body 2, a water outlet channel 31 is provided in the liquid outlet body 3, the water passage 11, the water inlet channel 21 and the water outlet channel 31 are connected, an adjusting component 4 is provided in the regulating valve body 1, and a buffer component 5 is provided in the liquid inlet body 2.

[0023] The liquid in the water inlet channel 21 is transported to the annular slide groove 51 along the arc-shaped connecting groove 52, and then transported to the water passage 11 through the vertical connecting groove 53. When the liquid enters the arc-shaped connecting groove 52, the liquid is buffered for the first time. When the liquid contacts the annular block 54, the impact force generated causes the annular block 54 to compress the functional spring 55, thereby achieving a second buffering of the liquid. When the liquid enters the water passage 11 through the vertical connecting groove 53, the liquids intersect, thereby achieving a third buffering of the liquid. When it needs to be closed, the threaded rod 43 is rotated by rotating the handle 44, and then the rubber plug 42 is adjusted to move to the bottom end of the vertical connecting groove 53, thereby blocking the water passage 11.

[0024] The regulating assembly 4 includes a regulating groove 41 provided in the regulating valve body 1 . The regulating groove 41 is vertically arranged with respect to the water passage 11 . An regulating rubber plug 42 is movably arranged in the regulating groove 41 .

[0025] A threaded rod 43 is fixedly mounted on the top of the regulating rubber plug 42 . The threaded rod 43 rotates and penetrates outside the regulating valve body 1 . A rotating handle 44 is fixedly mounted on the top of the threaded rod 43 .

[0026] The buffer assembly 5 includes an annular chute 51 provided at the bottom end of the liquid inlet body 2 . A plurality of arcuate connecting grooves 52 are provided in the liquid inlet body 2 . The arcuate connecting grooves 52 connect the water inlet channel 21 and the annular chute 51 . An annular block 54 is movably provided in the annular chute 51 .

[0027] A plurality of vertical connecting grooves 53 are provided in the liquid inlet body 2 , and the vertical connecting grooves 53 connect the water inlet channel 21 and the annular chute 51 . A functional spring 55 is elastically connected between the annular block 54 and the inner side wall of the annular chute 51 .

[0028] One end of the liquid inlet body 2 away from the regulating valve body 1 is connected to a water inlet pipe 6 , and one end of the liquid outlet body 3 away from the regulating valve body 1 is connected to a water outlet pipe 7 .

[0029] In the utility model, the device is installed in the pipeline through the water inlet pipe 6 and the water outlet pipe 7. The liquid in the water inlet channel 21 is transported to the annular slide groove 51 along the arc-shaped connecting groove 52, and then transported to the water passage 11 through the vertical connecting groove 53. When the liquid enters the arc-shaped connecting groove 52, the liquid is buffered for the first time. When the liquid contacts the annular block 54, the impact force generated causes the annular block 54 to compress the functional spring 55, thereby achieving a second buffering of the liquid. When the liquid enters the water passage 11 through the vertical connecting groove 53, the liquid intersects, thereby achieving a third buffering of the liquid, thereby avoiding excessive pressure of the liquid in the valve and ensuring the service life of the regulating valve. When it is necessary to adjust the flow in the pipeline, the rotating handle 44 is rotated to rotate the threaded rod 43, thereby adjusting the position of the regulating rubber plug 42. When it is necessary to close, the adjusting rubber plug 42 is adjusted to move to the bottom end of the vertical connecting groove 53, thereby blocking the water passage 11.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A regulating valve with an inlet flow limiting buffer function, comprising a regulating valve body (1), characterized in that: One end of the regulating valve body (1) is fixedly connected to a liquid inlet body (2), and one end of the regulating valve body (1) is fixedly connected to a liquid outlet body (3). A water passage (11) is provided in the regulating valve body (1), a water inlet channel (21) is provided in the liquid inlet body (2), and a water outlet channel (31) is provided in the liquid outlet body (3). The water passage (11), the water inlet channel (21) and the water outlet channel (31) are connected. A regulating component (4) is provided in the regulating valve body (1), and a buffer component (5) is provided in the liquid inlet body (2).

2. A regulating valve with inlet flow limiting buffer function according to claim 1, characterized in that: The regulating assembly (4) comprises a regulating groove (41) provided in the regulating valve body (1), the regulating groove (41) being arranged vertically with the water passage (11), and a regulating rubber plug (42) being movably arranged in the regulating groove (41).

3. A regulating valve with inlet flow limiting buffer function according to claim 2, characterized in that: A threaded rod (43) is fixedly mounted on the top of the regulating rubber plug (42); the threaded rod (43) is rotatably inserted into the outside of the regulating valve body (1); and a rotating handle (44) is fixedly mounted on the top of the threaded rod (43).

4. The regulating valve with inlet flow limiting buffer function according to claim 1, characterized in that: The buffer assembly (5) comprises an annular chute (51) provided at the bottom end of the liquid inlet body (2), a plurality of arc-shaped connecting grooves (52) are provided in the liquid inlet body (2), the arc-shaped connecting grooves (52) are connected to the water inlet channel (21) and the annular chute (51), and an annular block (54) is movably provided in the annular chute (51).

5. The regulating valve with inlet flow limiting buffer function according to claim 4, characterized in that: A plurality of vertical connecting grooves (53) are provided in the liquid inlet body (2), the vertical connecting grooves (53) connecting the water inlet channel (21) and the annular slide groove (51), and a functional spring (55) is elastically connected between the annular block (54) and the inner side wall of the annular slide groove (51).

6. The regulating valve with inlet flow limiting buffer function according to claim 1, characterized in that: The end of the liquid inlet body (2) away from the regulating valve body (1) is connected to a water inlet pipe (6), and the end of the liquid outlet body (3) away from the regulating valve body (1) is connected to a water outlet pipe (7).

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