CN210662323U - Drainage bypass system of large valve - Google Patents
Drainage bypass system of large valve Download PDFInfo
- Publication number
- CN210662323U CN210662323U CN201921309655.1U CN201921309655U CN210662323U CN 210662323 U CN210662323 U CN 210662323U CN 201921309655 U CN201921309655 U CN 201921309655U CN 210662323 U CN210662323 U CN 210662323U
- Authority
- CN
- China
- Prior art keywords
- drain
- valve
- bypass
- drainage
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Multiple-Way Valves (AREA)
Abstract
The utility model provides a large-scale valve drainage bypass system, including large-scale valve and the inlet tube and the outlet pipe that communicate the import and the export of large-scale valve respectively, a apopore has all been seted up on inlet tube and the outlet pipe, two the apopore communicates big valve bypass, big valve bypass communicates drainage system; the utility model combines the bypass and the drainage system of the large valve, which is characterized in that on one hand, the bypass drainage system of the large valve is optimized, the number of the valve and the pipeline is reduced, the operation is clear, and the misoperation is avoided; on the other hand, the requirements of bypass and drainage can be met only by opening two holes on the large pipe; the safe and stable operation of the equipment is guaranteed.
Description
Technical Field
The utility model belongs to pipeline, valve installation, design field, the hydrophobic bypass system of concretely relates to large-scale valve.
Background
A bypass system must be installed when the large-scale valve is installed so as to reduce the pressure difference between the front and the back of the valve during operation, and a set of drainage system is respectively installed on the front and the back of the valve so as to drain the stored steam and water. The traditional design system is complex and is easy to cause misoperation. Especially, the drainage and bypass design of the high-temperature and high-pressure valve needs two holes on the large pipe, the reliability of the pipeline is reduced, and the safety cannot be guaranteed. The problems of leakage of a large pipe and a drainage bypass system and the like often occur in the operation.
According to the traditional drainage bypass design scheme, four holes need to be formed in a large pipe, and a bypass and drainage system is independent, so that the system is complex, and poor in safety and operability.
Disclosure of Invention
In view of this, the utility model provides a large-scale valve drainage bypass system only need open two holes on the big pipe, is in the same place bypass, drainage system combination, aims at solving current pipeline reliability and descends, and the security can't be ensured, and big pipe and drainage bypass system leakage scheduling problem often appear in the operation.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the large valve drainage bypass system comprises a large valve, and a water inlet pipe and a water outlet pipe which are respectively communicated with an inlet and an outlet of the large valve, wherein the water inlet pipe and the water outlet pipe are respectively provided with a water outlet hole, the two water outlet holes are communicated with a large valve bypass, and the large valve bypass is communicated with the drainage system;
the big valve bypass comprises a bypass pipeline communicated with the two water outlet holes and an inlet drain valve and an outlet drain valve which are arranged on the bypass pipeline, the drainage system comprises a drainage header pipe, a drainage control valve and a drainage assembly, one end of the drainage header pipe is communicated with the bypass pipeline between the inlet drain valve and the outlet drain valve, the other end of the drainage header pipe is communicated with a drainage main pipe, the drainage main pipe is used for recovering drainage, and the drainage control valve and the drainage assembly are sequentially arranged on the drainage header pipe; opening the inlet drain valve, closing the outlet drain valve, and opening the drain control valve and the drain assembly to drain the drain water at the inlet of the large valve; opening the outlet drain valve, closing the inlet drain valve, and opening the drain control valve and the drain assembly to drain the drain water at the outlet of the large valve; and opening the inlet drain valve, opening the outlet drain valve and closing the drainage control valve can reduce the pressure difference between the inlet and the outlet of the large valve to play a role of a bypass.
Preferably, the drain assembly comprises an emptying pipe, a drain main bypass pipe, a drain inlet valve, a drain outlet valve, an emptying valve and a bypass drain valve, the drain inlet valve, the drain and the drain outlet valve are sequentially arranged on the drain main after the drain control valve, one end of the emptying pipe is communicated with the drain main between the drain control valve and the drain inlet valve, the other end of the emptying pipe is communicated with the atmosphere, and the emptying valve is arranged on the emptying pipe; the drain main bypass pipe is communicated with the drain main pipe between the drain control valve and the drain inlet valve and the drain main pipe behind the drain outlet valve, and the bypass drain valve is arranged on the drain main bypass pipe.
Preferably, opening the trap assembly is closing the drain valve and the bypass trap, opening the trap inlet valve, the trap and the trap outlet valve.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model combines the bypass and the drainage system of the large valve, which is characterized in that on one hand, the bypass drainage system of the large valve is optimized, the number of the valve and the pipeline is reduced, the operation is clear, and the misoperation is avoided; on the other hand, the requirements of bypass and drainage can be met only by opening two holes on the large pipe; the safe and stable operation of the equipment is guaranteed;
2. the utility model can be applied to all valve bypasses and drainage systems; the number of holes on the large pipe is reduced, and the number of valves and pipelines of a drainage and bypass system is reduced; the safety of the equipment is improved, the enterprise cost is reduced, the system is optimized, misoperation is avoided, and the safe and stable operation of the enterprise can be guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, the large valve drainage bypass system includes a large valve 1, and a water inlet pipe 2 and a water outlet pipe 3 respectively communicating an inlet and an outlet of the large valve 1, wherein the water inlet pipe 2 and the water outlet pipe 3 are both provided with a water outlet hole, the two water outlet holes are communicated with a large valve bypass, and the large valve bypass is communicated with the drainage system; the big valve bypass is including two of intercommunication the bypass pipeline 4 of apopore with import trap 5 and the export trap 6 that set up on the bypass pipeline 4, drainage system includes drain manifold 7, drainage control valve 8 and hydrophobic subassembly, the one end intercommunication of drain manifold 7 import trap 5 with between the export trap 6 bypass pipeline 4, drain manifold 7's the hydrophobic female pipe of other end intercommunication, the hydrophobic female pipe is used for retrieving hydrophobic, drainage control valve 8 with hydrophobic subassembly set gradually in on the drain manifold 7.
The specific point is that the drain control valve 8 is arranged on the drain header pipe 7 and close to the junction of the drain header pipe 7 and the bypass pipeline 4, and the drain assembly is arranged on the drain header pipe 7 and far away from the junction of the drain header pipe 7 and the bypass pipeline 4.
The drainage assembly comprises an emptying pipe 9, a drainage main bypass pipe 10, a drainage inlet valve 11, a steam trap 12, a drainage outlet valve 13, an emptying valve 14 and a bypass drainage valve 15, the drainage inlet valve 11, the steam trap 12 and the drainage outlet valve 13 are sequentially arranged on the drainage main 7 behind the drainage control valve 8, one end of the emptying pipe 9 is communicated with the drainage main 7 between the drainage control valve 8 and the drainage inlet valve 11, the other end of the emptying pipe 9 is communicated with the atmosphere, and the emptying valve 14 is arranged on the emptying pipe 9; the drain main bypass pipe 10 is communicated with the drain main 7 between the drain control valve 8 and the drain inlet valve 11 and the drain main 7 behind the drain outlet valve 13, and the bypass drain valve 15 is arranged on the drain main bypass pipe 10.
Opening the trap assembly closes the drain valve 14 and the bypass trap 15, and opens the trap inlet valve 11, the trap 12 and the trap outlet valve 13.
The utility model discloses an use:
1. drainage of the inlet of the large valve 1: opening the inlet drain valve 5, closing the outlet drain valve 6, and opening the drain control valve 8 and the drain assembly to drain the drain water at the inlet of the large valve 1;
2. drainage of the outlet of the large valve 1: opening the outlet drain valve 6, closing the inlet drain valve 5, and opening the drain control valve 8 and the drain assembly to drain the drain water at the outlet of the large valve 1;
3. the bypass function of the big valve is as follows: the inlet drain valve 5 is opened, the outlet drain valve 6 is opened, and the drain control valve 8 is closed, so that the pressure difference between the inlet and the outlet of the large valve 1 can be reduced, and the bypass effect is achieved.
When the steam trap 12 is serviced, the drain inlet valve 11 and the drain outlet valve 13 are closed, and the drain control valve 8 and the bypass drain valve 15 are opened.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement, component separation or combination made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The large valve drainage bypass system comprises a large valve, and a water inlet pipe and a water outlet pipe which are respectively communicated with an inlet and an outlet of the large valve, and is characterized in that the water inlet pipe and the water outlet pipe are both provided with a water outlet hole, the two water outlet holes are communicated with a large valve bypass, and the large valve bypass is communicated with the drainage system;
the big valve bypass comprises a bypass pipeline communicated with the two water outlet holes and an inlet drain valve and an outlet drain valve which are arranged on the bypass pipeline, the drainage system comprises a drainage header pipe, a drainage control valve and a drainage assembly, one end of the drainage header pipe is communicated with the bypass pipeline between the inlet drain valve and the outlet drain valve, the other end of the drainage header pipe is communicated with a drainage main pipe, the drainage main pipe is used for recovering drainage, and the drainage control valve and the drainage assembly are sequentially arranged on the drainage header pipe; opening the inlet drain valve, closing the outlet drain valve, and opening the drain control valve and the drain assembly to drain the drain water at the inlet of the large valve; opening the outlet drain valve, closing the inlet drain valve, and opening the drain control valve and the drain assembly to drain the drain water at the outlet of the large valve; and opening the inlet drain valve, opening the outlet drain valve and closing the drainage control valve can reduce the pressure difference between the inlet and the outlet of the large valve to play a role of a bypass.
2. The large valve drain bypass system according to claim 1, wherein the drain assembly comprises an emptying pipe, a drain main bypass pipe, a drain inlet valve, a drain outlet valve, an emptying valve and a bypass drain valve, the drain inlet valve, the drain and the drain outlet valve are arranged on the drain main in sequence after the drain control valve, one end of the emptying pipe is communicated with the drain main between the drain control valve and the drain inlet valve, the other end of the emptying pipe is communicated with the atmosphere, and the emptying valve is arranged on the emptying pipe; the drain main bypass pipe is communicated with the drain main pipe between the drain control valve and the drain inlet valve and the drain main pipe behind the drain outlet valve, and the bypass drain valve is arranged on the drain main bypass pipe.
3. The large valve drain bypass system according to claim 2, wherein opening the drain assembly is closing the drain valve and the bypass drain valve, opening the drain inlet valve, the drain and the drain outlet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921309655.1U CN210662323U (en) | 2019-08-13 | 2019-08-13 | Drainage bypass system of large valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921309655.1U CN210662323U (en) | 2019-08-13 | 2019-08-13 | Drainage bypass system of large valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210662323U true CN210662323U (en) | 2020-06-02 |
Family
ID=70838916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921309655.1U Active CN210662323U (en) | 2019-08-13 | 2019-08-13 | Drainage bypass system of large valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210662323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188181A (en) * | 2021-03-29 | 2021-07-30 | 大唐七台河发电有限责任公司 | Heating drainage recovery device |
-
2019
- 2019-08-13 CN CN201921309655.1U patent/CN210662323U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188181A (en) * | 2021-03-29 | 2021-07-30 | 大唐七台河发电有限责任公司 | Heating drainage recovery device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210662323U (en) | Drainage bypass system of large valve | |
| CN203169886U (en) | Hydraulic pressure reset diaphragm type deluge valve | |
| CN205956483U (en) | Prevent high back pressure and vacuous guide's formula relief valve | |
| CN204781251U (en) | Vacuum drainage system | |
| CN102661411A (en) | Bidirectional ventilation device of solar water heater | |
| CN203757260U (en) | Modular water collection and separation device | |
| CN216114320U (en) | Heating system based on direct connection-separation mode switching | |
| CN102777647A (en) | Self-operated temperature control valve | |
| CN212616564U (en) | Air control type blower decompression valve | |
| CN101852202A (en) | Double-aperture adjustable slow-closure control valve for water pump | |
| CN202900621U (en) | Intelligent pump control valve | |
| CN210372243U (en) | Pneumatic control system for automatic valve resetting in fault state | |
| CN203926967U (en) | A kind of hydraulic control valve door | |
| CN203926946U (en) | A kind of novel slow-closing check valve | |
| CN202300654U (en) | State switching valve and system | |
| CN201787134U (en) | Safety double-eye intelligent kitchen pre-stage air inlet electromagnetic valve assembly | |
| CN201269332Y (en) | Anti-dirt check valve | |
| CN218719043U (en) | Bypass pressure relief device is opened to valve | |
| CN211715434U (en) | Novel plug-in mounting structure water inlet valve hydraulic control system with bypass closing valve | |
| CN206112197U (en) | Electric valve convenient to installation | |
| CN204851346U (en) | Steam pipe drainage system is led to reliable steam turbine high pressure | |
| CN203784429U (en) | Remote control valve | |
| CN204787365U (en) | Solar water heater pipeline evacuation system | |
| CN218961801U (en) | Condensate recovery pipeline structure of hydrogenation reactor | |
| CN210562406U (en) | Device convenient to pipeline quality of water is maintained and large-scale valve is opened |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201228 Address after: No.33, Beibinhe West Road, Anning District, Lanzhou City, Gansu Province Patentee after: Huaneng Gansu Energy Development Co.,Ltd. Patentee after: XIGU THERMAL POWER PLANT OF DATANG GANSU POWER GENERATION Co.,Ltd. Address before: 730060 No.78 Gulang Road, Xigu District, Lanzhou City, Gansu Province Patentee before: XIGU THERMAL POWER PLANT OF DATANG GANSU POWER GENERATION Co.,Ltd. |
|
| TR01 | Transfer of patent right |