CN220540332U - Detachable anti-vibration high-pressure inlet valve - Google Patents
Detachable anti-vibration high-pressure inlet valve Download PDFInfo
- Publication number
- CN220540332U CN220540332U CN202321989735.2U CN202321989735U CN220540332U CN 220540332 U CN220540332 U CN 220540332U CN 202321989735 U CN202321989735 U CN 202321989735U CN 220540332 U CN220540332 U CN 220540332U
- Authority
- CN
- China
- Prior art keywords
- valve
- vibration
- valve seat
- valve body
- disk seat
- Prior art date
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Links
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Abstract
The utility model relates to a detachable anti-vibration high-inlet valve, belongs to the field of thermal power valves, and is important equipment for protecting a high-pressure heater. At present, the requirements of the automation control level of the unit are higher and higher, and after the high-pressure heater is required to be cracked, the water supply pressure entering the boiler is stable, the pressure almost has no fluctuation, and excessive vibration cannot be caused. And the maintenance cost is required to be low, and the method is convenient and quick. Current high-addition inlet valves also have difficulty meeting the above requirements. This scheme is equipped with detachable disk seat in the valve body, the disk seat outer wall has the screw thread, pass through threaded connection with the valve body, when the disk seat damages and need the maintenance, need not to cut down the valve from the pipeline, but the direct replacement disk seat sets up the choke sleeve of taking the window at the valve clack top, the design has a plurality of windows on choke sleeve drum wall, when the medium switches over the in-process of bypass in the twinkling of an eye, the choke sleeve breaks down the whole impact effort of medium into tiny stranded impact force, reduce the impact force that the medium produced parts such as valve body, play steady voltage effect, reduce valve vibration and noise.
Description
Technical Field
The utility model relates to a detachable anti-vibration high-inlet valve, and belongs to the field of thermal power valves.
Background
The high-pressure inlet valve is arranged on an inlet pipeline of a high-pressure heater of the thermal power generating unit, and is important equipment for protecting the safe operation of the high-pressure heater. When the unit is in normal operation, high-pressure water enters the high-pressure heater through the high-pressure inlet valve and enters the boiler through the outlet valve. When the high-pressure heater fails, the high-pressure inlet valve is required to be quickly closed to open the bypass, so that the high-pressure heater is cracked, and the water supply bypasses the high-pressure heater and enters the boiler through the bypass.
At present, the requirements of the automation control level of the unit are higher and higher, and after the high-pressure heater is required to be cracked, the water supply pressure entering the boiler is stable, the pressure almost has no fluctuation, and excessive vibration cannot be caused. The valve has longer service life, convenient and quick maintenance, low cost, extremely high maintenance cost and extremely high maintenance cost, and the service life of the high-pressure inlet valve is seriously influenced by the valve seat. Current high-addition inlet valves also have difficulty meeting the above requirements.
Disclosure of Invention
In order to solve the defects of the technology, the utility model provides the electric high-inlet valve which has the advantages of detachable valve seat, tight main bypass seal, stable water supply pressure entering the boiler when the main bypass is switched with the bypass and capability of resisting valve vibration and noise.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the original welding type valve seat with the valve body is changed into the threaded connection of the valve seat and the valve body, so that free disassembly and assembly are realized. The top of the valve clack is provided with a throttling sleeve, the cylindrical wall of the throttling sleeve is provided with a plurality of windows, the medium which is instantaneously switched to the bypass system is split through the windows of the throttling sleeve, the integral impact force of the fluid is decomposed into a plurality of tiny impact forces of the fluid, the impact force on the valve body and the valve seat is reduced, and the vibration is reduced. And the fit clearance between the inner diameter of the valve seat and the outer diameter of the throttling sleeve is reduced, and when the valve is opened and closed, the inner diameter of the valve seat can play a guiding role on the throttling sleeve, so that vibration is reduced.
The self-sealing valve comprises a valve body (1), a valve clack (2), a throttling sleeve (3), a valve seat (4), a valve rod (5), a packing chamber seat (6), a self-sealing ring (7), a compression ring (8), a four-closed ring (9), a bracket (10), a transition head (11), an electric device (12) and the like.
Drawings
FIG. 1 is a schematic diagram of a removable anti-vibration high-pressure inlet valve
FIG. 2 is a schematic view of a valve seat
FIG. 3 is a schematic view of a throttle sleeve
In FIG. 1, valve body, valve clack, 3, throttle sleeve, 4, valve seat, 5, valve rod, 6, packing chamber seat, 7, self-sealing ring, 8, clamping ring, 9, four-way ring, 10, bracket, 11, transition head, 12, electric installation.
Detailed Description
The high inlet valve of detachable anti-vibration function: the detachable valve seat is arranged in the valve seat, the outer wall of the valve seat is provided with threads, the valve seat is connected with the valve body through threads, and a notch is formed in the upper end of the valve seat, so that the valve seat is convenient to assemble and disassemble during maintenance. When the valve seat is damaged and needs to be maintained, the valve is not required to be cut off from the pipeline, and the valve seat can be directly replaced. The top of the valve clack is provided with a throttling sleeve with a window, when the medium is instantaneously switched to a bypass, the medium circulates through the window of the throttling sleeve, and after the whole medium is split and stabilized, the medium is converged into a cavity of the valve body and then flows. The throttle sleeve breaks down the whole impact acting force of the medium into tiny multi-strand impact force, reduces the impact force of the medium on the valve body and other parts, plays a role in stabilizing pressure, and reduces valve vibration and noise.
When the unit is in normal operation, the medium enters the high-pressure heater from the inlet of the high-inlet valve and the outlet of the high-pressure heater. When the high-voltage heater fails, the electric device drives the valve clack to descend, the valve clack contacts with the valve body, and the main path is closed; the medium passes through the throttling sleeve and bypasses the boiler.
The utility model has the beneficial effects that: firstly, when the valve seat is damaged and needs to be maintained, the valve is not required to be cut off from the pipeline, the valve seat can be directly replaced, and the maintenance cost and the maintenance time are saved. Secondly, the medium which is instantaneously switched to the bypass system is split through a window on the throttling sleeve, the impact force of the whole fluid is decomposed, the impact force of the medium on the valve body and other parts is reduced, the pressure stabilizing effect is achieved, and the vibration and noise of the valve are reduced.
In the embodiment shown in fig. 2, the outer wall of the valve seat is provided with threads, and can be directly detached and replaced.
In the embodiment shown in fig. 3, a plurality of windows are arranged on the cylindrical wall of the throttling sleeve, and when the high-pressure inlet valve is switched to the bypass, the medium flows out of the middle cavity of the valve body and enters the boiler after being stabilized and equalized through the windows of the throttling sleeve.
Claims (3)
1. A detachable anti-vibration high-adding port valve is characterized in that: the self-sealing valve comprises a valve body (1), a valve clack (2), a throttling sleeve (3), a valve seat (4), a valve rod (5), a packing chamber seat (6), a self-sealing ring (7), a compression ring (8), a tetrad ring (9), a bracket (10), a transition head (11) and an electric device (12); the outer wall of the valve seat is provided with threads, the valve seat is connected with the valve body through threads, and a notch is formed in the upper end of the valve seat, so that the valve seat is convenient to assemble and disassemble during maintenance; the cylinder wall of the throttling sleeve is provided with a plurality of windows, and the medium instantaneously switched to the bypass system is split through the windows to decompose the impact force of the whole fluid into a plurality of tiny fluid impact forces, so that the impact force on the valve body and the upper valve seat is reduced, and the vibration is reduced.
2. The removable anti-vibration high inlet valve of claim 1, wherein: the outer wall of the valve seat is provided with threads, so that the quick disassembly and installation during maintenance can be realized.
3. The removable anti-vibration high inlet valve of claim 1, wherein: the throttle sleeve is provided with a plurality of windows on the cylindrical wall, so that the occurrence of vibration can be effectively reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321989735.2U CN220540332U (en) | 2023-07-26 | 2023-07-26 | Detachable anti-vibration high-pressure inlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321989735.2U CN220540332U (en) | 2023-07-26 | 2023-07-26 | Detachable anti-vibration high-pressure inlet valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220540332U true CN220540332U (en) | 2024-02-27 |
Family
ID=89975196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321989735.2U Active CN220540332U (en) | 2023-07-26 | 2023-07-26 | Detachable anti-vibration high-pressure inlet valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220540332U (en) |
-
2023
- 2023-07-26 CN CN202321989735.2U patent/CN220540332U/en active Active
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