CN220523362U - Reverse pressure relief check valve - Google Patents
Reverse pressure relief check valve Download PDFInfo
- Publication number
- CN220523362U CN220523362U CN202321877152.0U CN202321877152U CN220523362U CN 220523362 U CN220523362 U CN 220523362U CN 202321877152 U CN202321877152 U CN 202321877152U CN 220523362 U CN220523362 U CN 220523362U
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- pressure relief
- pipe section
- water inlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 116
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 238000005265 energy consumption Methods 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 20
- 238000013016 damping Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model relates to a reverse pressure relief check valve, which comprises a main valve body, wherein a water passing channel is arranged in the main valve body, one end of the water passing channel is a water inlet end, and the other opposite end is a water outlet end; the valve core is arranged in the water channel and used for blocking fluid from flowing from the water outlet end to the water inlet end; the valve core separates the water channel to form a water inlet section and a water return section; the pressure relief part comprises a pressure relief pipe section communicated with the backwater section, a movable plug which is axially moved along the pressure relief pipe section and is movably connected with the pressure relief pipe section, and an energy consumption part which is connected between the movable plug and the pressure relief pipe section. The utility model has the effects of consuming the energy of the water hammer when forming the water hammer backwater and reducing the long-acting pressure on the valve core.
Description
Technical Field
The utility model relates to the technical field of check valves, in particular to a reverse pressure relief check valve.
Background
The downstream of the water pump needs a check valve to control the backflow of the water column after the water pump, so that the water pump is protected from being damaged by the backflow, and the pipeline water body is preserved so as not to be emptied. Moreover, it is also required to have a certain degree of water hammer prevention function, so that the amplitude of the rise or fall of the water hammer (collectively referred to as pressure fluctuation) after the pump is stopped is controlled to be within a certain degree.
The existing water valve of the waterproof hammer is basically directly impacted by the water pressure by the valve body, so that the valve body is easy to be damaged due to the impact of the water pressure and water leakage and the like along with the increase of the service time.
Disclosure of Invention
In view of the shortcomings of the prior art, one of the purposes of the present utility model is to provide a reverse pressure relief check valve.
The utility model aims at realizing the following technical scheme: the reverse pressure relief check valve comprises a main valve body, wherein a water passing channel is arranged in the main valve body, one end of the water passing channel is a water inlet end, and the other opposite end is a water outlet end; the valve core is arranged in the water channel and used for blocking fluid from flowing from the water outlet end to the water inlet end; the valve core separates the water channel to form a water inlet section and a water return section; the pressure relief part comprises a pressure relief pipe section communicated with the backwater section, a movable plug which is axially moved along the pressure relief pipe section and is movably connected with the pressure relief pipe section, and an energy consumption part which is connected between the movable plug and the pressure relief pipe section.
The present utility model may be further configured in a preferred example to: the energy consumption component comprises an axial compression spring, and the axial compression spring is used for forming acting force for driving the movable plug to move towards the backwater section.
The present utility model may be further configured in a preferred example to: the energy consumption component further comprises a damping ring which is arranged on the peripheral side wall of the movable plug.
The present utility model may be further configured in a preferred example to: one end of the pressure relief pipe section, which is away from the water return section, is communicated with the water inlet section through a connecting pipe section.
The present utility model may be further configured in a preferred example to: the movable plug comprises a plug body and a water baffle plate connected to one side of the plug body, which is away from the backwater section, wherein the water baffle plate can separate the water inlet section from the pressure relief section, and can cancel separation between the water inlet section and the pressure relief section when the plug body moves towards the backwater section.
The present utility model may be further configured in a preferred example to: the connecting pipe section and the pressure relief pipe section are arranged on the upper portion of the main valve body.
The present utility model may be further configured in a preferred example to: one end of the pressure relief pipe section, which is away from the water return section, is provided with an accommodating section, and the accommodating section is used for accommodating and abutting the water baffle when the plug body moves away from the water return section; one end of the axial compression spring is connected with the end part of the containing section, which is far away from the pressure relief pipe section, and the other end of the axial compression spring is connected with the plug
And one side of the body, which is away from the backwater section.
The present utility model may be further configured in a preferred example to: one side of the plug body, which is away from the water return section, is rotationally connected with the axial compression spring.
In summary, the present utility model includes at least one of the following beneficial technical effects: through setting up the pressure release subassembly on the return water section, make the water hammer can get into the pressure release pipeline section and order about movable stopper removal to consume the energy of water hammer through movable stopper. After the water baffle of the movable plug moves to the accommodating section, the connecting pipe section is communicated with the pressure relief pipe section and the water inlet section, so that fluid forming a water hammer can enter the water inlet section to distribute the acting force of the water hammer, and the safety and reliability of the pressure relief piece are ensured. And because the water inlet section is communicated with the water return section, fluid in the water inlet section can also enter the water return section through the pressure relief piece, so that the valve core structure is protected.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present application;
fig. 2 is an enlarged schematic view of the relief piece of fig. 1 at a.
In the figure, 1, a main valve body; 2. a valve core; 3. a pressure release member; 4. energy consumption components; 5. a pressure relief pipe section; 6. a movable plug; 7. a damping ring; 8. connecting pipe sections; 9. a water baffle; 10. a receiving section; 11. abutting the step; 12. a first turntable; 13. a second turntable; 14. a plug body; 15. and (5) axially pressing the spring.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
The utility model is described in further detail below with reference to fig. 1-2.
Referring to fig. 1 and 2, a method of
The valve comprises a main valve body 1, wherein a water passing channel is arranged in the main valve body 1, one end of the water passing channel is a water inlet end, and the other opposite end is a water outlet end;
the valve core 2 is arranged in the water channel and used for blocking fluid from flowing from the water outlet end to the water inlet end; the valve core 2 separates a water channel to form a water inlet section and a water return section;
the pressure release part 3 comprises a pressure release pipe section 5 communicated with the backwater section, a movable plug 6 which is movably connected with the pressure release pipe section 5 along the axial direction of the pressure release pipe section 5, and an energy consumption part 4 connected between the movable plug 6 and the pressure release pipe section 5.
The valve core 2 is of a conventional non-return structure and will not be described in detail herein.
The water passage is used for fluid to flow through, and when the fluid flows from the water inlet end to the water outlet end, the valve core 2 is opened. After closing the fluid, the valve core 2 separates the water channel under pressure, at which point a water hammer will be formed.
When the water hammer enters the main valve body 1, the movable plug 6 in the pressure relief piece 3 is subjected to the action force of the water hammer so as to axially move along the pressure relief pipe section 5, and the action force of the water hammer is consumed through the energy consumption component 4 when the water hammer impacts the valve core 2, so that the energy of the water hammer is consumed by driving the movable plug 6 of the pressure relief piece 3 to move, the damage of the valve core 2 caused by the excessive pressure of the valve core 2 due to the impact of the water hammer formed by blocking backwater is reduced, and the service life of the check valve is prolonged.
The energy consumption component 4 comprises an axial compression spring 15 which is arranged on the movable plug 6 and is away from the water return section. The axial compression spring 15 is connected between the movable plug 6 and the pressure relief pipe section 5, and when the movable plug 6 moves away from the backwater section, the axial compression spring 15 compresses and generates a force towards the backwater section on the movable plug 6, thereby consuming the acting load of the water hammer. After the water hammer action is finished, the axial compression spring 15 drives the movable plug 6 to reset so as to cope with the subsequent water hammer action.
Further, the energy dissipation component 4 may further include a damping ring 7 disposed on a side wall of the movable plug 6 and abutting against a side wall of the pressure relief pipe section 5 to generate a certain friction force. In particular, the damping ring 7 may be a rubber washer. The damping piece can also be arranged on the inner side wall of the pressure relief pipeline, and the damping piece is always positioned in the travel range of the movable plug 6 along the pressure relief pipeline section 5.
One end of the pressure relief pipe section 5 is arranged on the upper part of the edge of the main valve body 1, and one end of the pressure relief pipe section 5 connected with the backwater section is provided with a flaring. The side wall of one end of the pressure relief pipe section 5, which is far away from the water return section, is connected with the water inlet section by a connecting pipe section 8. Is arranged in a flaring so that the fluid forming the water hammer enters the connecting pipe section 8
The movable plug 6 comprises a plug body 14 and a water baffle 9 connected to one side of the plug body 14 deviating from the backwater section, wherein the water baffle 9 can separate the water inlet section from the pressure relief section 5, and can cancel separation between the water inlet section and the pressure relief section 5 when the plug body 14 moves towards the backwater section deviating from the backwater section.
One end of the pressure relief pipe section 5, which is far away from the backwater section, is provided with a containing section 10, and the containing section 10 protrudes to form the pressure relief pipe section 5 and is coaxially communicated with the pressure relief pipe section 5.
The receiving section 10 is used for receiving the abutment water deflector 9 when the plug body 14 is moved away from the return water section.
One end of the axial compression spring 15 is connected to the end of the containing section 10, which is far away from the pressure relief pipe section 5, and the other end of the axial compression spring 15 is connected to one side of the plug body 14, which is far away from the backwater section.
And be located the pressure release pipeline section 5 and be close to the one side of return water section and be provided with butt step 11, butt step 11 is used for with activity stopper 6 butt, butt step 11 restraint activity stopper 6 to reduce activity stopper 6 along pressure release pipeline section 5 towards the return water section removal and drop, ensure the safe and reliable of pressure release piece 3 structure.
Further, the side of the plug body 14 facing away from the water return section is rotatably connected with an axial compression spring 15.
Specifically, the movable plug 6 is connected with a first rotary disc 12 coaxially on one side deviating from the backwater section, and the first rotary disc 12 can rotate along the axis of the pressure relief pipe section 5 relative to the movable plug 6.
The accommodating section 10 is provided with a second turntable 13, the second turntable 13 coaxially corresponds to the first turntable 12, and the second turntable 13 can rotate along the axis of the accommodating section 10 relative to the accommodating section 10.
The axial compression spring 15 is fixedly connected to one of the first rotary disk 12 or the second rotary disk 13 along at least one of the two ends of the axis of the accommodation section 10. Therefore, when the movable plug 6 moves back and forth, the torsion effect of the rotation of the movable plug 6 on the axial compression spring 15 is reduced, so that the axial compression spring 15 can rotate relative to the movable plug 6.
In summary, by arranging the pressure release member 3 on the water return section, the water hammer can enter the pressure release pipe section 5 to drive the movable plug 6 to move, so that the energy of the water hammer is consumed through the movable plug 6.
After the water baffle 9 of the movable plug 6 moves to the accommodating section 10, the connecting pipe section 8 is communicated with the pressure relief pipe section 5 and the water inlet section, so that fluid forming a water hammer can enter the water inlet section to distribute the acting force of the water hammer, and the safety and reliability of the pressure relief piece 3 are ensured.
And because the water inlet section is communicated with the water return section, fluid in the water inlet section can also enter the water return section through the pressure release part 3, so that the valve core 2 structure is protected. The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. The reverse pressure relief check valve is characterized by comprising a main valve body (1), wherein a water passing channel is arranged in the main valve body (1), one end of the water passing channel is a water inlet end, and the other opposite end is a water outlet end;
the valve core (2) is arranged in the water channel and used for blocking fluid from flowing from the water outlet end to the water inlet end; the valve core (2) separates the water channel to form a water inlet section and a water return section;
the pressure release piece (3) comprises a pressure release pipe section (5) communicated with the backwater section, a movable plug (6) which is axially moved along the pressure release pipe section (5) and is movably connected with the pressure release pipe section (5), and an energy consumption component (4) which is connected between the movable plug (6) and the pressure release pipe section (5); the energy consumption component (4) comprises an axial compression spring (15), and the axial compression spring (15) is used for forming acting force for driving the movable plug (6) to move towards the water return section; the energy consumption component (4) further comprises a damping ring (7) which is arranged on the peripheral side wall of the movable plug (6).
2. The reverse pressure relief check valve of claim 1, wherein: one end of the pressure relief pipe section (5) deviating from the water return section is communicated with the water inlet section through a connecting pipe section (8).
3. The reverse pressure relief check valve of claim 2, wherein: the movable plug (6) comprises a plug body (14) and a water baffle (9) connected to one side of the plug body (14) away from the backwater section, wherein the water baffle (9) can separate the water inlet section from the pressure relief pipe section (5), and the separation between the water inlet section and the pressure relief pipe section (5) can be canceled when the plug body (14) moves towards the backwater section.
4. The reverse pressure relief check valve according to claim 3, wherein: the connecting pipe section (8) and the pressure relief pipe section (5) are arranged on the upper part of the main valve body (1).
5. The reverse pressure relief check valve according to claim 3, wherein: one end of the pressure relief pipe section (5) deviating from the backwater section is provided with a containing section (10), and the containing section (10) is used for containing and abutting the water baffle (9) when the plug body (14) moves deviating from the backwater section; one end of the axial compression spring (15) is connected to the end part of the containing section (10) deviating from the pressure relief pipe section (5), and the other end of the axial compression spring (15) is connected to one side of the plug body (14) deviating from the water return section.
6. The reverse pressure relief check valve according to claim 3, wherein: one side of the plug body (14) deviating from the water return section is rotationally connected with the axial compression spring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321877152.0U CN220523362U (en) | 2023-07-17 | 2023-07-17 | Reverse pressure relief check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321877152.0U CN220523362U (en) | 2023-07-17 | 2023-07-17 | Reverse pressure relief check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220523362U true CN220523362U (en) | 2024-02-23 |
Family
ID=89927903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321877152.0U Active CN220523362U (en) | 2023-07-17 | 2023-07-17 | Reverse pressure relief check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220523362U (en) |
-
2023
- 2023-07-17 CN CN202321877152.0U patent/CN220523362U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |