CN203445751U - Generator stator cooling water system - Google Patents
Generator stator cooling water system Download PDFInfo
- Publication number
- CN203445751U CN203445751U CN201320534062.1U CN201320534062U CN203445751U CN 203445751 U CN203445751 U CN 203445751U CN 201320534062 U CN201320534062 U CN 201320534062U CN 203445751 U CN203445751 U CN 203445751U
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- CN
- China
- Prior art keywords
- water
- generator
- stator coil
- cooling
- coil cooling
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a generator stator cooling water system. The system comprises a stator cooling water tank, a water pump, a cooler, a filter, and a generator stator coil cooling water channel. The water outlet of the generator stator coil cooling water channel is connected with the stator cooling water tank through a pipeline, the stator cooling water tank is connected with the water pump, the water pump is connected with the cooler, the cooler is connected with the filer, the filter is connected with the water inlet of the generator stator coil cooling water channel through the pipeline, a differential pressure switch is connected between the water outlet of the generator stator coil cooling water channel and the water outlet of the water pump, and the differential pressure switch is arranged between the water inlet of the water pump and the water outlet of the water pump through a signal bypass. According to the generator stator cooling water system, the differential pressure switch, through comparing the pressure between the water inlet of the water pump and the water outlet of the water pump, and the pressure between the water outlet of the water pump and the water outlet of the generator stator coil cooling water channel, detects whether generator stator coil cooling water is blocked from flowing.
Description
Technical field
The utility model relates to a kind of water system, and especially a kind of generator stator cooling water system, belongs to field of generating equipment.
Background technology
Electricity generator stator coil produces heat when work, the cooling water stator coil inside of flowing through incessantly, thereby by stator coil because the heat that loss produces is taken away, to guarantee that temperature rise meets the designing requirement of generator, therefore it is carried out to cooling cooling water for determining cold water by electricity generator stator coil.
When stator coil is cooling, need to monitor and prevent that it from cutting off the water supply determining cold water, the water cut-off protection of determining cold water at current stator coil cooling water adopts traffic protection, but because flowed fluctuation is large, causes monitoring inaccurate, needs monitoring and protecting more accurately.
In view of this spy proposes the utility model.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of generator stator cooling water system is provided, and can detect and determine cold water cutout, prevents that electricity generator stator coil from damaging because lacking cooling water.
For solving the problems of the technologies described above, the utility model adopts the basic conception of technical scheme to be:
Generator stator cooling water system, comprises the stator coil cooling-water duct of determining cold water storage cistern, water pump, cooler, filter, generator.
The stator coil cooling-water duct delivery port of generator is connected and is determined cold water storage cistern by pipeline, determine cold water storage cistern and connect water pump, water pump connects cooler, cooler connects filter, filter is connected to the stator coil cooling-water duct water inlet of generator by pipeline, between the stator coil cooling-water duct delivery port of generator and pump outlet, be connected with differential pressure switch, between the water inlet of water pump and delivery port, by signal bypass, be provided with differential pressure switch.
Adopt after technique scheme, the utility model compared with prior art has following beneficial effect.
The utility model generator stator cooling water system, between the stator coil cooling-water duct delivery port of generator and pump outlet, be connected with differential pressure switch, by comparing the pressure between pump intake and delivery port, whether the pressure of the stator coil cooling-water duct delivery port of the pressure of pump outlet and generator detects electricity generator stator coil cooling water and stops.Avoid larger owing to determining cold water flow fluctuation, the indeterminable situation of prison causing.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model generator stator cooling water system.
Wherein, 1, determine cold water storage cistern, 2, water pump, 3, cooler, 4, cooling water tank, 5, filter, 6, Pressure gauge, 7, generator, 8, differential pressure switch, 9, flowmeter.
Embodiment
As shown in Figure 1, the utility model generator stator cooling water system, comprises the stator coil cooling-water duct of determining cold water storage cistern 1, water pump 2, cooler 3, filter 5 and generator.
In generator 7, the water inlet of the stator coil cooling-water duct of generator is positioned at encourages end, and the delivery port of the stator coil cooling-water duct of generator is positioned at vapour end.The stator coil cooling-water duct delivery port of generator is connected and is determined cold water storage cistern 4 by pipeline, determine cold water storage cistern 4 and connect water pump 2, water pump 2 connects cooler 3, cooler 3 connects filter 5, filter 5 is connected to the stator coil cooling-water duct water inlet of generator by pipeline, between the stator coil cooling-water duct delivery port of generator and water pump 2 delivery ports, be connected with differential pressure switch 8.Between the water inlet of water pump 2 and delivery port, by signal bypass, be provided with differential pressure switch 8.Differential pressure switch 8 is electrically connected to control device, and control device is electrically connected to generator.
Determining cold water flows through water pump 2 from determining cold water storage cistern 1, after filtering, cooler 3 heat exchange coolings, filter 5 from the stator coil cooling-water duct of the water inlet inflow generator of the stator coil cooling-water duct of generator, determine after heat that cold water absorption stator coil produces again to flow out to and to determine cold water storage cistern 1 from the delivery port of the stator coil cooling-water duct of generator.The heat that circulation said process produces stator coil dispels the heat.
On the connecting tube between the water inlet of the stator coil cooling-water duct of filter 5 and generator, vent valve is installed, vent valve is connected to determines cold water storage cistern 1.
Cooler 3 comprises two coolers in parallel, and cooler 3 connects cooling water tank 4.Cooling water tank 4 adopts enclosed water to carry out cooling to cooler.Two coolers can exchange work, are switched to another cooler when a cooler breaks down, and ensure determining the normally cooling of cold water.
Between the water inlet of water pump 2 and delivery port, be provided with differential pressure switch 8, on the delivery port one side pipe road of water pump 2, Pressure gauge 6 be installed simultaneously.At the delivery port of water pump 2, during without water outlet, Pressure gauge 6 shows hydraulic pressure, and differential pressure switch 8 detects the water inlet of water pumps 2 and the pressure reduction between delivery port trigger control device and gives the alarm, and prevents that generator from damaging.
Normal at pump working, its delivery port has water outlet, when cooler 3 or filter 5 break down, the cold water of determining that enters the stator coil cooling-water duct of generator stops, the Pressure gauge 6 that install stator coil cooling-water duct water inlet by generator carries out hydraulic pressure detection, and utilizes the differential pressure switch 8 being connected between the stator coil cooling-water duct delivery port of generator and water pump 2 delivery ports to carry out determining cold water pressure differential detection.Owing to determining cold water for water cut, cause pump outlet to determine cold water hydraulic pressure too high, and the stator coil cooling-water duct delivery port hydraulic pressure of generator is too low, pressure reduction between the two surpasses set point, differential pressure switch 8 action triggers control device, control device action gives the alarm or makes generator chaser prevent that generator from damaging.At the water inlet of the stator coil cooling-water duct of generator and water outlet, 6 pairs, Pressure gauge is all installed and determines cold water and carry out pressure detecting, 9 pairs of flowmeters are installed in its water inlet and determine cold water flow and detect.
By the work of differential pressure switch 8 and Pressure gauge 6, make to determine cold water and can be found in time when cutout, avoid the damage of the stator coil of generator.
The utility model generator stator cooling water system, between the water inlet of water pump and delivery port, by signal bypass, differential pressure switch is set, between the stator coil cooling-water duct delivery port of generator and pump outlet, be connected with differential pressure switch, by comparing the pressure between pump intake and delivery port, whether the pressure of the stator coil cooling-water duct delivery port of the pressure of pump outlet and generator detects electricity generator stator coil cooling water and stops.Avoid larger owing to determining cold water flow fluctuation, the indeterminable situation of prison causing.
Embodiment in above-described embodiment can further combine or replace; and embodiment is described preferred embodiment of the present utility model; not design of the present utility model and scope are limited; do not departing under the prerequisite of the utility model design philosophy; the various changes and modifications that in this area, professional and technical personnel makes the technical solution of the utility model, all belong to protection range of the present utility model.
Claims (8)
1. generator stator cooling water system, is characterized in that: comprise the stator coil cooling-water duct of determining cold water storage cistern, water pump, cooler, filter, generator,
The stator coil cooling-water duct delivery port of generator is connected and is determined cold water storage cistern by pipeline, determine cold water storage cistern and connect water pump, water pump connects cooler, cooler connects filter, filter is connected to the stator coil cooling-water duct water inlet of generator by pipeline, between the stator coil cooling-water duct delivery port of generator and pump outlet, be connected with differential pressure switch, between the water inlet of water pump and delivery port, by signal bypass, be provided with differential pressure switch.
2. generator stator cooling water system according to claim 1, is characterized in that: differential pressure switch is electrically connected to control device, and control device is electrically connected to generator.
3. generator stator cooling water system according to claim 2, it is characterized in that: the stator coil cooling-water duct water inlet at generator is provided with pressure-detecting device and flow detector, at the stator coil cooling-water duct water outlet of generator, pressure-detecting device is installed.
4. generator stator cooling water system according to claim 1, is characterized in that: the water inlet of the stator coil cooling-water duct of generator is positioned at encourages end, and the delivery port of the stator coil cooling-water duct of generator is positioned at vapour end.
5. generator stator cooling water system according to claim 1, is characterized in that: on the connecting tube between the water inlet of the stator coil cooling-water duct of filter and generator, vent valve is installed, vent valve is connected to determines cold water storage cistern.
6. generator stator cooling water system according to claim 1, is characterized in that: cooler comprises two coolers in parallel.
7. generator stator cooling water system according to claim 1, is characterized in that: filter comprises two filters in parallel.
8. generator stator cooling water system according to claim 1, is characterized in that: water pump comprises two water pumps in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534062.1U CN203445751U (en) | 2013-08-29 | 2013-08-29 | Generator stator cooling water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534062.1U CN203445751U (en) | 2013-08-29 | 2013-08-29 | Generator stator cooling water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203445751U true CN203445751U (en) | 2014-02-19 |
Family
ID=50096767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320534062.1U Expired - Fee Related CN203445751U (en) | 2013-08-29 | 2013-08-29 | Generator stator cooling water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203445751U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305731A (en) * | 2015-12-02 | 2016-02-03 | 国网上海市电力公司 | Inner water-cooled generator stator anti-vapor blocking device and method |
| CN108141110A (en) * | 2015-10-02 | 2018-06-08 | 罗伯特·博世有限公司 | Driving unit and the unit with cooler |
| CN109120105A (en) * | 2018-09-29 | 2019-01-01 | 东方电机控制设备有限公司 | A kind of Generator Stator Cooling water system anti-siphon means |
| CN111431347A (en) * | 2020-02-20 | 2020-07-17 | 华电电力科学研究院有限公司 | Rotor cooling water system and start-stop control method thereof |
-
2013
- 2013-08-29 CN CN201320534062.1U patent/CN203445751U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108141110A (en) * | 2015-10-02 | 2018-06-08 | 罗伯特·博世有限公司 | Driving unit and the unit with cooler |
| CN105305731A (en) * | 2015-12-02 | 2016-02-03 | 国网上海市电力公司 | Inner water-cooled generator stator anti-vapor blocking device and method |
| CN109120105A (en) * | 2018-09-29 | 2019-01-01 | 东方电机控制设备有限公司 | A kind of Generator Stator Cooling water system anti-siphon means |
| CN109120105B (en) * | 2018-09-29 | 2024-02-20 | 东方电气自动控制工程有限公司 | Anti-siphon device of generator stator cooling water system |
| CN111431347A (en) * | 2020-02-20 | 2020-07-17 | 华电电力科学研究院有限公司 | Rotor cooling water system and start-stop control method thereof |
| CN111431347B (en) * | 2020-02-20 | 2021-11-16 | 华电电力科学研究院有限公司 | Rotor cooling water system and start-stop control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20180829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |