CN205447268U - Steam jet air ejector temperature and pressure reduction system - Google Patents
Steam jet air ejector temperature and pressure reduction system Download PDFInfo
- Publication number
- CN205447268U CN205447268U CN201620201990.XU CN201620201990U CN205447268U CN 205447268 U CN205447268 U CN 205447268U CN 201620201990 U CN201620201990 U CN 201620201990U CN 205447268 U CN205447268 U CN 205447268U
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- regulating valve
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Abstract
The utility model relates to a steam jet air ejector temperature and pressure reduction system, belong to steam turbine technical field, the utility model provides an effectively reduce the first parameter that the temperature and pressure reduction ware starts, it extracts the vacuum to start steam jet air ejector in advance, shorten the steam jet air ejector temperature and pressure reduction system of activation time, the technical scheme who adopts is for being provided with the main control valve on the live steam piping, meet pressure regulating valve behind the main control valve, connect behind the pressure regulating valve and subtract the warm water governing valve, it sets up the relief valve to subtract between warm water governing valve and the steam jet air ejector, pressure regulating valve and subtract and be provided with the restricting orifice between the warm water governing valve, be provided with the bypass between main control valve and the pressure regulating valve, the export of bypass is connected with the live steam piping, and the tie point is located and subtracts between warm water governing valve and the relief valve, be provided with valve of bypass and bypass secondary valve in the bypass, be provided with hydrophobic pipeline between valve of bypass and the bypass secondary valve, water control valve is dredged to last being provided with of hydrophobic pipeline, the utility model discloses extensively be used for the steam turbine.
Description
Technical field
This utility model relates to a kind of stream-jet ejector temperature reducing and pressure reducing system, belongs to steam turbine technology field.
Background technology
At present, before existing stream-jet ejector, the initial conditions of the import adjustable pressure of temperature-decreased pressure reducer design is too high, and stream-jet ejector starts overlong time；Thus cause whole unit heating coil, start on-load time lengthening.
Utility model content
For solving the technical problem that prior art exists, this utility model provides the initial conditions that a kind of effective reduction temperature-decreased pressure reducer starts, and pre-cooling stream-jet ejector carries out extracting vacuum, shortens the stream-jet ejector temperature reducing and pressure reducing system of startup time.
For achieving the above object, the technical scheme that this utility model is used is stream-jet ejector temperature reducing and pressure reducing system, including the live steam piping being connected with stream-jet ejector, it is provided with main control valve on described live steam piping, described main control valve is followed by pressure-regulating valve, described pressure-regulating valve is followed by Desuperheating water regulating valve, relief valve is set between Desuperheating water regulating valve and stream-jet ejector, it is provided with restricting orifice between described pressure-regulating valve and Desuperheating water regulating valve, it is provided with bypass between described main control valve and pressure-regulating valve, the outlet of described bypass is connected with live steam piping, and junction point is between Desuperheating water regulating valve and relief valve, valve of bypass and bypass secondary valve it is provided with in described bypass, it is provided with hydrophobic pipeline between valve of described bypass and bypass secondary valve, hydrophobic control valve it is provided with on described hydrophobic pipeline.
Preferably, the front end of described main control valve is provided with the first Pressure gauge, being provided with the second Pressure gauge between Desuperheating water regulating valve and relief valve, described main control valve, pressure-regulating valve, Desuperheating water regulating valve, relief valve, valve of bypass, bypass secondary valve, hydrophobic control valve, the first Pressure gauge and the second Pressure gauge are all connected with main control unit.
Compared with prior art, this utility model has following technical effect that this utility model will arrange bypass duct at live steam piping, increases startup caliber, it is possible to decrease the initial conditions that temperature-decreased pressure reducer starts, pre-cooling stream-jet ejector extracting vacuum, after vacuum is set up as early as possible, main control valve can be opened, carry out live steam piping heating coil work, reduce the start-up parameter of Steam Turbine, shorten the heating coil of steam turbine, on-load warm-up period, thus improve the economy of unit starting, reduce energy consumption.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
As shown in Figure 1, stream-jet ejector temperature reducing and pressure reducing system, including the live steam piping 1 being connected with stream-jet ejector, main control valve 2 it is provided with on live steam piping 1, main control valve 2 is followed by pressure-regulating valve 3, pressure-regulating valve 3 is followed by Desuperheating water regulating valve 4, relief valve 5 is set between Desuperheating water regulating valve 4 and stream-jet ejector, restricting orifice 6 it is provided with between pressure-regulating valve 3 and Desuperheating water regulating valve 4, bypass 7 it is provided with between main control valve 2 and pressure-regulating valve 3, the outlet of bypass 7 is connected with live steam piping 1, and junction point is between Desuperheating water regulating valve 4 and relief valve 5, valve of bypass 8 and bypass secondary valve 9 it is provided with in bypass 7, bypass and be provided with hydrophobic pipeline 10 between a valve 8 and bypass secondary valve 9, hydrophobic control valve 11 it is provided with on hydrophobic pipeline 10.
The front end of main control valve 2 is provided with the first Pressure gauge 12, being provided with the second Pressure gauge 13 between Desuperheating water regulating valve 4 and relief valve 5, main control valve 2, pressure-regulating valve 3, Desuperheating water regulating valve 4, relief valve 5, valve 8 of bypass, bypass secondary valve 9, hydrophobic control valve the 11, first Pressure gauge 12 are all connected with main control unit with the second Pressure gauge 13.
In use, main control valve, valve of bypass and bypass secondary valve are opened.Live steam piping pressure monitored in real time by first Pressure gauge, when main vapour pressure reaches 0.5MPa, slightly opens the manual secondary valve of bypass, carries out heating coil；When main vapour pressure reaches 2.5MPa, progressively open and bypass greatly secondary valve, and suitably open pressure-regulating valve.After packing function group puts into normally, standard-sized sheet bypass secondary valve, and check that temperature-decreased pressure reducer outlet pressure, when more than 2.5MPa, puts into starting pump operation, closes hydrophobic control valve by the second Pressure gauge；When temperature-decreased pressure reducer outlet pressure reaches 3.6MPa, should gradually turn down bypass secondary valve, and gradually drive big pressure-regulating valve.Note: during adjusting at this, should ensure that the outlet pressure of temperature-decreased pressure reducer is between 3.0 ~ 3.6MPa；When main vapour pressure reaches more than 7.6MPa, and temperature-decreased pressure reducer pressure-regulating valve puts into normal, and when can maintain temperature-decreased pressure reducer outlet pressure between 3.0 ~ 3.6MPa, close bypass secondary valve and valve of bypass.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, in the range of all should wrapping in this utility model.
Claims (2)
1. stream-jet ejector temperature reducing and pressure reducing system, including the live steam piping being connected with stream-jet ejector, it is characterized in that: on described live steam piping, be provided with main control valve, described main control valve is followed by pressure-regulating valve, described pressure-regulating valve is followed by Desuperheating water regulating valve, relief valve is set between Desuperheating water regulating valve and stream-jet ejector, it is provided with restricting orifice between described pressure-regulating valve and Desuperheating water regulating valve, it is provided with bypass between described main control valve and pressure-regulating valve, the outlet of described bypass is connected with live steam piping, and junction point is between Desuperheating water regulating valve and relief valve, valve of bypass and bypass secondary valve it is provided with in described bypass, it is provided with hydrophobic pipeline between valve of described bypass and bypass secondary valve, hydrophobic control valve it is provided with on described hydrophobic pipeline.
Stream-jet ejector temperature reducing and pressure reducing system the most according to claim 1, it is characterized in that: the front end of described main control valve is provided with the first Pressure gauge, being provided with the second Pressure gauge between Desuperheating water regulating valve and relief valve, described main control valve, pressure-regulating valve, Desuperheating water regulating valve, relief valve, valve of bypass, bypass secondary valve, hydrophobic control valve, the first Pressure gauge and the second Pressure gauge are all connected with main control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620201990.XU CN205447268U (en) | 2016-03-16 | 2016-03-16 | Steam jet air ejector temperature and pressure reduction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620201990.XU CN205447268U (en) | 2016-03-16 | 2016-03-16 | Steam jet air ejector temperature and pressure reduction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205447268U true CN205447268U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620201990.XU Expired - Fee Related CN205447268U (en) | 2016-03-16 | 2016-03-16 | Steam jet air ejector temperature and pressure reduction system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205447268U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102443A (en) * | 2019-06-25 | 2019-08-09 | 常州铭赛机器人科技股份有限公司 | Decompressor and dispensing controller with it |
| CN111911909A (en) * | 2020-06-29 | 2020-11-10 | 太原理工大学 | Pressure-reducing heat-preserving system for high-parameter superheated steam and control method thereof |
| CN114216059A (en) * | 2021-12-27 | 2022-03-22 | 上海康措流体控制有限公司 | Automatic pump room pressure flow water hammer control system and control method |
| CN114646020A (en) * | 2022-03-31 | 2022-06-21 | 华能营口热电有限责任公司 | Power grid steam temperature and pressure reduction device, thermoelectric peak regulation system and pressure reduction regulation method |
-
2016
- 2016-03-16 CN CN201620201990.XU patent/CN205447268U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102443A (en) * | 2019-06-25 | 2019-08-09 | 常州铭赛机器人科技股份有限公司 | Decompressor and dispensing controller with it |
| CN110102443B (en) * | 2019-06-25 | 2024-05-17 | 常州铭赛机器人科技股份有限公司 | Pressure reducing device and dispensing controller with same |
| CN111911909A (en) * | 2020-06-29 | 2020-11-10 | 太原理工大学 | Pressure-reducing heat-preserving system for high-parameter superheated steam and control method thereof |
| CN111911909B (en) * | 2020-06-29 | 2022-03-11 | 太原理工大学 | Pressure-reducing heat-preserving system for high-parameter superheated steam and control method thereof |
| CN114216059A (en) * | 2021-12-27 | 2022-03-22 | 上海康措流体控制有限公司 | Automatic pump room pressure flow water hammer control system and control method |
| CN114216059B (en) * | 2021-12-27 | 2024-04-19 | 上海康措流体控制有限公司 | Pump room pressure flow water hammer automatic control system and control method |
| CN114646020A (en) * | 2022-03-31 | 2022-06-21 | 华能营口热电有限责任公司 | Power grid steam temperature and pressure reduction device, thermoelectric peak regulation system and pressure reduction regulation method |
| CN114646020B (en) * | 2022-03-31 | 2024-05-31 | 华能营口热电有限责任公司 | Power grid steam temperature and pressure reducing device, thermoelectric peak regulating system and pressure reducing and regulating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180312 Address after: Jinhui Wealth Center No. 22 North Lianhu District Tang Yan Road 710000 Shaanxi province Xi'an city 15 floor room 1501 Patentee after: Xi'an ecological Polytron Technologies Inc Address before: 030000 Pingyang Road, Taiyuan City, Shanxi Province, No. 374 Sixian sock factory Patentee before: Shanxi Zhongke Guotong New Energy Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20190316 |