CN218376709U - Dual cooling water supply system - Google Patents
Dual cooling water supply system Download PDFInfo
- Publication number
- CN218376709U CN218376709U CN202221202373.3U CN202221202373U CN218376709U CN 218376709 U CN218376709 U CN 218376709U CN 202221202373 U CN202221202373 U CN 202221202373U CN 218376709 U CN218376709 U CN 218376709U
- Authority
- CN
- China
- Prior art keywords
- water
- pipe
- water supply
- branch pipe
- drain
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model provides a dual cooling water supply system, include the drain pipe that links to each other with outlet and draft tube on the hydraulic turbine top cap respectively, its characterized in that: the drain pipe passes through connecting branch and links to each other with drain pipe one end, delivery pipe one end, draft tube respectively, and the drain pipe other end links to each other with the outlet on the hydraulic turbine top cap, and the delivery pipe other end links to each other with cooling system, and connecting branch passes through the water pump and links to each other with the draft tube. Can conveniently follow water turbine top cap water intaking and supply cooling system to use, this water intaking mode need not consume the energy, rely on self pressure just can satisfy cooling system normal operating, restart water pump supplies water when pressure is not enough, and many water pumps supply water in turn, can prolong water pump life, when water pressure is low excessively, can start many water pumps again simultaneously and supply water to cooling system, guarantee that hydroelectric set's cooling system can the safety and stability operation, and then guarantee hydroelectric set normal operating.
Description
Technical Field
The utility model relates to a water supply system, especially a dual cooling water supply system belongs to hydroelectric power generation technical field.
Background
The motor guide bearing and the air cooler in the water turbine generator set need to be cooled by cooling water, and the existing cooling water is obtained by extracting from a tail water pipe through a water pump. The problem that the water supply pressure is too low and the flow that leads to is not enough often appears in the water pump at the water supply in-process, can make the temperature of each water position of hydroelectric set exceed the alarm value like this, brings serious threat for the safe and stable operation of unit. In addition, the existing water pump used for cooling water has great energy consumption during operation, and long-time operation is not beneficial to the emission reduction requirement of energy conservation and consumption reduction. There is therefore a need for improvements in the prior art.
Disclosure of Invention
Adopt the water pump water supply mode for solving the cooling water that current hydroelectric set used, appear easily that water supply pressure crosses lowly and consume energy serious scheduling problem, the utility model provides a dual cooling water supply system.
The utility model discloses a following technical scheme accomplishes: the utility model provides a dual cooling water supply system, includes the drain pipe that links to each other with outlet and draft tube on the hydraulic turbine top cap respectively, its characterized in that: the water outlet pipe is respectively connected with one end of the water outlet branch pipe, one end of the water supply pipe and the tail water pipe through the connecting branch pipe, the other end of the water outlet branch pipe is connected with a water outlet on the top cover of the water turbine, the other end of the water supply pipe is connected with the cooling system, and the connecting branch pipe is connected with the tail water pipe through the water pump, so that the water can be supplied to the cooling system after water is taken from the top cover of the water turbine through the water outlet pipe or the water outlet branch pipe, the three-way valve, the connecting branch pipe and the water supply pipe; when the pressure is insufficient, the water pump is started again to take water from the tail water pipe for the cooling system to use.
One end of the connecting branch pipe is communicated with the drain pipe, the other end of the connecting branch pipe is provided with two water pumps in parallel, and the connecting branch pipe positioned at the outlet end of the water pumps is provided with a control valve, so that water is alternately supplied through the two water pumps, the service life of the water pumps is prolonged, the two water pumps can be started to supply water when the water pressure is too low, the cooling system of the water-turbine generator set can be operated safely and stably, and the normal operation of the water-turbine generator set is further ensured.
The connecting branch pipe is communicated with one end of the water discharge branch pipe and the water discharge pipe through the three-way valve, and the other end of the water discharge branch pipe is communicated with a water outlet of a top cover of the water turbine, so that the connecting branch pipe can directly take water from the water outlet of the top cover of the water turbine and can also take water from the water discharge pipe through the three-way valve, and water is supplied to the cooling system through the water supply pipe.
The three-way valve is a conventional electric control three-way valve and is arranged on the connecting branch pipe, a first passage of the three-way valve is communicated with the front section of the connecting branch pipe, a second passage of the three-way valve is communicated with the rear section of the connecting branch pipe, and a third passage of the three-way valve is communicated with one end of the drainage branch pipe so as to supply water to the water supply pipe and the cooling system through the three-way valve or supply water to the cooling system through the water supply pipe after water is taken from the tail water pipe by using the water pump.
The water supply pipe is provided with a flowmeter and a pressure transmitter and is used for collecting and displaying water supply flow and water supply pressure and transmitting the water supply flow and the water supply pressure to the central control system.
The connecting branch pipe is provided with a flow meter and a pressure transmitter at the position of the drainage pipe section, so that when the water pressure of the water turbine top cover is too high, the first passage of the three-way valve is closed, water supply to the water supply pipe is blocked, drainage and pressure relief are carried out by the drainage pipe, and the flow meter and the pressure transmitter are used for monitoring the flow and the pressure value during pressure relief.
The drainage pipe is provided with a safety valve, a pressure relief opening of the safety valve is communicated with a pressure relief pipeline through a pipeline on which an electric control valve is arranged, so that when the pressure of the drainage pipe is overlarge, the electric control valve controls the pressure relief valve to open, and therefore the pressure water is discharged to the pressure relief pipeline and then is discharged.
The utility model has the advantages of the following and the effect: by adopting the above scheme, can conveniently follow the hydraulic turbine top cap water intaking and supply cooling system to use, this water intaking mode need not consume the energy, rely on self pressure just can satisfy cooling system normal operating, restart water pump supplies water when not enough pressure, and many water pumps supply water in turn, can prolong water pump life, when water pressure is low excessively, can start many water pumps again simultaneously and supply water to cooling system, guarantee that hydroelectric set's cooling system can the safety and stability operation, and then guarantee hydroelectric set normal operating. Is an ideal water supply system.
Drawings
Fig. 1 is a structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The utility model provides a dual cooling water supply system, include the drain pipe 2 that links to each other with outlet and draft tube 1 on the hydraulic turbine top cap 8 respectively, wherein: the water discharging pipe 2 is respectively connected with one end of a water discharging branch pipe 7, one end of a water supplying pipe 11 and the tail water pipe 1 through a connecting branch pipe 3, the other end of the water discharging branch pipe 7 is connected with a water discharging port on a water turbine top cover 8, the other end of the water supplying pipe 11 is connected with a cooling system 9, and the connecting branch pipe 3 is connected with the tail water pipe 1 through a water pump 14, so that the water can be supplied to the cooling system 9 for use after water is taken from the water turbine top cover 8 through the water discharging pipe 2 or the water discharging branch pipe 7, a three-way valve 4, the connecting branch pipe 3 and the water supplying pipe 11, and the water taking mode does not need to consume energy sources and can meet the normal operation of the cooling system 9 by means of self pressure; when the pressure is insufficient, the water pump 14 is started again to take water from the tail water pipe 1 for the cooling system 9 to use;
one end of the connecting branch pipe 3 is communicated with the drain pipe 2, the other end of the connecting branch pipe is provided with two water pumps 14 in parallel, a control valve 13 is arranged on the connecting branch pipe 3 at the outlet end of each water pump 14, so that water can be supplied by the two water pumps 14 alternately, the service life of each water pump 14 is prolonged, the two water pumps 14 can be started to supply water at the same time when the water pressure is too low, the cooling system 9 of the water-turbine generator set can be ensured to run safely and stably, and the normal running of the water-turbine generator set is further ensured;
the connecting branch pipe 3 is communicated with one end of a water discharge branch pipe 7 and the water discharge pipe 2 through a three-way valve 4, and the other end of the water discharge branch pipe 7 is communicated with a water discharge port of a water turbine top cover 8, so that the connecting branch pipe 3 can directly take water from the water discharge port of the water turbine top cover 8 and can also take water from the water discharge pipe 2 through the three-way valve 4, and water is supplied to a cooling system 9 through a water supply pipe 11;
the three-way valve 4 is a conventional electric control three-way valve and is arranged on the connecting branch pipe 3, a first passage of the three-way valve 4 is communicated with the front section of the connecting branch pipe 3, a second passage is communicated with the rear section of the connecting branch pipe 3, and a third passage is communicated with one end of the drainage branch pipe 7 so as to supply water to the water supply pipe 11 and the cooling system 9 through the three-way valve 4, or supply water to the cooling system 9 through the water supply pipe 11 after water is taken from the tail water pipe 1 by using the water pump 14;
the water supply pipe 11 is provided with a flowmeter 12 and a pressure transmitter 10, and is used for collecting and displaying water supply flow and water supply pressure and transmitting the water supply pressure to the central control system, when the water supply pipe is normal, the water supply pipe adopts the water turbine top cover 8 to supply water so as to save energy consumption, and when the pressure or the flow is insufficient, the water supply pipe adopts the water pump 14 to supply water so as to ensure the normal work of the cooling system 9;
the connecting branch pipe 3 is positioned at the section of the water discharge pipe 2, and is provided with a flowmeter and a pressure transmitter, so that when the water pressure of the water turbine top cover 8 is overlarge, the first passage of the three-way valve 4 is closed, water supply to the water supply pipe 11 is blocked, water discharge and pressure relief are performed by the water discharge pipe 2, and the flowmeter and the pressure transmitter are used for monitoring the flow and the pressure value during pressure relief;
be equipped with relief valve 5 on the drain pipe 2, this relief valve 5 pressure release mouth is linked together with the pressure release pipeline through the pipeline that is equipped with electric control valve 6 on it to when drain pipe 2 pressure was too big, open through electric control valve 6 control relief valve 5, thereby discharge pressure water behind the pressure release pipeline.
Claims (7)
1. The utility model provides a dual cooling water supply system, includes the drain pipe that links to each other with outlet and draft tube on the hydraulic turbine top cap respectively, its characterized in that: the drain pipe passes through connecting branch and links to each other with drain branch one end, delivery pipe one end, draft tube respectively, and the drain branch other end links to each other with the outlet on the hydraulic turbine top cap, and the delivery pipe other end links to each other with cooling system, and connecting branch passes through the water pump and links to each other with the draft tube.
2. The dual cooling water supply system according to claim 1, wherein one end of the connecting branch pipe is communicated with the drain pipe, the other end is provided with two water pumps in parallel, and the connecting branch pipe at the outlet end of the water pumps is provided with a control valve.
3. The dual cooling water supply system according to claim 1, wherein the connection branch pipe is communicated with one end of the drain branch pipe and the drain pipe through a three-way valve, and the other end of the drain branch pipe is communicated with a drain port of a top cover of the water turbine.
4. The dual cooling water supply system according to claim 3, wherein the three-way valve is provided on the connecting branch pipe, a first passage of the three-way valve is communicated with a front section of the connecting branch pipe, a second passage is communicated with a rear section of the connecting branch pipe, and a third passage is communicated with one end of the drain branch pipe.
5. The dual cooling water supply system as claimed in claim 1, wherein a flow meter and a pressure transmitter are provided on the water supply pipe.
6. The dual cooling water supply system according to claim 1, wherein a flow meter and a pressure transmitter are provided on the connecting branch pipe at a position of the drain pipe section.
7. The dual cooling water supply system according to claim 1, wherein the drain pipe is provided with a safety valve, and a pressure relief port of the safety valve is communicated with the pressure relief pipe through a pipe on which an electrically controlled valve is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221202373.3U CN218376709U (en) | 2022-05-19 | 2022-05-19 | Dual cooling water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221202373.3U CN218376709U (en) | 2022-05-19 | 2022-05-19 | Dual cooling water supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218376709U true CN218376709U (en) | 2023-01-24 |
Family
ID=84959832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221202373.3U Active CN218376709U (en) | 2022-05-19 | 2022-05-19 | Dual cooling water supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218376709U (en) |
-
2022
- 2022-05-19 CN CN202221202373.3U patent/CN218376709U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201141358Y (en) | Supercharging high-lift clean water pump of blade self-suction jet pipe | |
| CN218376709U (en) | Dual cooling water supply system | |
| CN110805007B (en) | Whole-plant public water supply method and system | |
| CN201650756U (en) | Centrifugal water pump with automatic water drawing device | |
| CN200968292Y (en) | Energy-saving high efficiency electrically driven pump | |
| CN202811282U (en) | Heat recovery hot water conveying control system for circulating air compressor | |
| CN209724693U (en) | A kind of pipeline pump | |
| CN212106219U (en) | Water suction pump for mine drainage | |
| CN214698379U (en) | Device for switching water supply of water pump under low water level | |
| CN104846937A (en) | Pipe network pressure-superposed water supply equipment with auxiliary energy-saving small-flow pump | |
| CN108194117A (en) | A kind of mine waste heat recovery constant temperature heating system | |
| CN204676643U (en) | A kind of green construction pump energy saving long-distance monitorng device | |
| CN210768771U (en) | Shield system and cooling device for external circulating water thereof | |
| CN210919469U (en) | Priming device of self-priming pump without bottom valve | |
| CN208353801U (en) | Rectification Power Factor water circulating pump emergence compensating water device | |
| CN110966749B (en) | Control method of supercharged gas water heater and gas water heater | |
| CN205475451U (en) | Water supply equipment without negative pressure | |
| CN202853206U (en) | Well water recharge system | |
| CN212250699U (en) | Cooling system for water pump hydraulic motor of cold recycling machine | |
| CN204475437U (en) | One is self-service washes vehicle intelligent water storage device | |
| CN212055075U (en) | Protection system of water supply unit pump body | |
| CN217761099U (en) | Air compressor for fuel cell system and fuel cell system | |
| CN208566666U (en) | A kind of phthalic anhydride production feed water system of boiler | |
| CN218692611U (en) | Energy-saving rolling mill oil pump control system | |
| CN213838741U (en) | Intelligent water path circulation system in mute generator set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |