CN215719191U - Water turbine technical water supply system - Google Patents
Water turbine technical water supply system Download PDFInfo
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- CN215719191U CN215719191U CN202121946342.4U CN202121946342U CN215719191U CN 215719191 U CN215719191 U CN 215719191U CN 202121946342 U CN202121946342 U CN 202121946342U CN 215719191 U CN215719191 U CN 215719191U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 377
- 238000005516 engineering process Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 4
- 241001247986 Calotropis procera Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 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 discloses a technical water supply system of a water turbine, wherein the water inlet end of a main circulating water path and the water inlet end of a standby circulating water path are both communicated with fire-fighting water supply, the water outlet end of the main circulating water path and the water outlet end of the standby circulating water path are both communicated with the water inlet ends of a unit air cooler and guide bearings, and the water outlet ends of the unit air cooler and the guide bearings are respectively connected with the circulating water inlet end of the main circulating water path and the circulating water inlet end of the standby circulating water path. According to the utility model, the main circulating waterway and the standby circulating waterway are arranged, so that the main circulating waterway can be timely switched to the standby circulating waterway when the main circulating waterway fails, more overhaul time is provided for the main circulating waterway, and the equipment damage and the influence on the economic benefit of a hydraulic power plant are avoided; in addition, the main circulating water path and the standby circulating water path are switched to operate at regular time by adopting two water supply pumps, and when one water supply pump is damaged, the other water supply pump can be switched to work in time, so that the problem is further avoided.
Description
Technical Field
The utility model relates to the technical field of cooling of water turbine generator sets, in particular to a technical water supply system of a water turbine.
Background
In a hydraulic power plant, technical water supply is also called production water supply, and mainly has the main functions of cooling running equipment, lubricating (such as a rubber bush guide bearing of a water turbine) and performing hydraulic operation (such as a main valve of a high-head power plant). Under the normal operation mode, each hydroelectric generating set must be equipped with a technical water supply system to ensure the safe operation of the set, once the technical water supply system of the set has problems, the set must be cleared or shut down in time within a short time (generally no more than 15 minutes), otherwise, the temperature of bearings and stators and rotors of each part of the set can greatly rise, and serious consequences such as machine set bearing burnout and stator and rotor damage can be caused, and once the set is withdrawn from normal standby for a long time, the economic benefit of a hydraulic power plant can be seriously influenced. In the prior art, only one set of main water supply cooling system is adopted, and when the water supply cooling system breaks down, if the system cannot be overhauled in time, serious consequences can be caused.
Therefore, there is a need to develop a water turbine technology water supply system to solve the above problems.
Disclosure of Invention
The utility model aims to solve the problems and designs a technical water supply system of a water turbine.
The utility model realizes the purpose through the following technical scheme:
water turbine technical water supply system includes:
a main circulating water path;
at least one spare circulation water path; the water inlet end of the main circulating water path and the water inlet end of the standby circulating water path are both communicated with fire-fighting water supply, the water outlet end of the main circulating water path and the water outlet end of the standby circulating water path are both communicated with the water inlet ends of the unit air cooler and the guide bearings, and the water outlet ends of the unit air cooler and the guide bearings are respectively connected with the circulating water inlet end of the main circulating water path and the circulating water inlet end of the standby circulating water path.
The utility model has the beneficial effects that:
by arranging the main circulating waterway and the standby circulating waterway, the main circulating waterway can be timely switched to the standby circulating waterway when the main circulating waterway fails, more overhaul time is provided for the main circulating waterway, and equipment damage and influence on economic benefit of a hydraulic power plant are avoided; in addition, the main circulating water path and the standby circulating water path are switched to operate at regular time by adopting two water supply pumps, and when one water supply pump is damaged, the other water supply pump can be switched to work in time, so that the problem is further avoided.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic view of the structure of part A in FIG. 1;
FIG. 3 is a schematic view of the structure of part B in FIG. 1;
reference numbers in the figures: 100. a first circulating water supply tank; 101. a first water supply pump; 102. a second water supply pump; 103. a first water level switching value sensor; 104. a first water level analog sensor; 105. a first galvanometer; 106. a first check valve; 107. a first control valve; 108. a first outlet valve; 109. a second galvanometer; 110. a second check valve; 111. a second control valve; 112. a second outlet valve; 113. a first water inlet valve; 114. a first circulation cooler; 115. a water outlet valve; 116. a first drain valve; 117. a first water replenishing electric valve; 118. a first water-replenishing manual valve; 119. a first bypass water replenishing manual valve; 120. a first water filter; 200. a second circulating water supply tank; 201. a third water supply pump; 202. a fourth water supply pump; 203. a second water level switching value sensor; 204. a second water level analog quantity sensor; 205. a third galvanometer; 206. a third check valve; 207. a third control valve; 208. a third outlet valve; 209. a fourth galvanometer; 210. a fourth check valve; 211. a fourth control valve; 212. a fourth outlet valve; 213. a second water inlet valve; 214. a second circulation cooler; 216. a second drain valve; 217. a second water replenishing electric valve; 218. a second water-replenishing manual valve; 219. a second bypass water replenishing manual valve; 220. a second water filter; 301. a first three-way valve; 302. a third water filter; 303. a water pressure gauge; 304. a first water thermometer; 306. the air cooler of the unit and each guide bearing; 307. a second three-way valve; 308. a second water temperature meter; 309. and a third water inlet valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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 invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the utility model refers to the accompanying drawings.
As shown in fig. 1 to 3, the water turbine technology water supply system includes:
a main circulating water path;
a standby circulating water path; the water inlet end of the main circulating water path and the water inlet end of the standby circulating water path are both communicated with fire-fighting water supply, the water outlet end of the main circulating water path and the water outlet end of the standby circulating water path are both communicated with the water inlet ends of the unit air cooler and the guide bearings 306, and the water outlet ends of the unit air cooler and the guide bearings 306 are respectively connected with the circulating water inlet end of the main circulating water path and the circulating water inlet end of the standby circulating water path.
The water outlet end of the standby circulating waterway is also respectively communicated with the unit air coolers of the multiple units and the water inlet ends of the guide bearings 306 of all parts. One set of standby technical water supply system can be used as a standby for technical water supply systems of a plurality of units in the whole plant, and the technical water supply systems of other units under normal conditions can also be operated in the same way when in failure.
The spare circulation water path comprises a first circulation water supply tank 100, a first water supply pump 101, a second water supply pump 102, a first water level switching amount sensor 103, a first water level analog quantity sensor 104, a first flow meter 105, a first check valve 106, a first control valve 107, a first outlet valve 108, a second flow meter 109, a second check valve 110, a second control valve 111, a second outlet valve 112, a first water inlet valve 113, a first circulation cooler 114, a water outlet valve 115, a first water outlet valve 116, a first water replenishing electric valve 117, a first water replenishing manual valve 118, a first bypass water replenishing manual valve 119 and a first water filter 120; a first water supply pump 101 and a second water supply pump 102 are installed on the first circulating water supply tank 100, and the water inlet end of the water supply pumps is disposed at the bottom of the first circulating water supply tank 100; a first water level switching value sensor 103 and a first water level analog value sensor 104 are installed on the first circulating water supply tank 100, and the action ends are arranged in the first circulating water supply tank 100; the first water level switching value sensor 103 is provided with at least four detection positions, wherein the detection positions comprise a high water level, a water supplementing stopping water level, a water supplementing starting water level and a low water level; a first flow meter 105, a first check valve 106, a first control valve 107 and a first outlet valve 108 are sequentially arranged on a first pipeline of a standby circulating water path at the water outlet end of the first water supply pump 101, a second flow meter 109, a second check valve 110, a second control valve 111 and a second outlet valve 112 are sequentially arranged on a second pipeline of the standby circulating water path at the water outlet end of the second water supply pump 102, the first pipeline and the second pipeline of the standby circulating water path are converged into a third pipeline of the standby circulating water path, a first water inlet valve 113, a first circulating cooler 114 and a water outlet valve 115 are sequentially arranged on the third pipeline of the standby circulating water path, and the third pipeline of the standby circulating water path is connected with a fourth pipeline; the first circulating water supply tank 100 is also connected with fire-fighting water supply through a fifth pipeline of a standby circulating water path, a first water replenishing electric valve 117, a first water replenishing manual valve 118 and a first water filter 120 are sequentially arranged on the fifth pipeline of the standby circulating water path, a bypass pipeline of the standby circulating water path is also connected in parallel on the fifth pipeline of the standby circulating water path, a first bypass water replenishing manual valve 119 is arranged on the bypass pipeline of the standby circulating water path, the first end of the bypass pipeline of the standby circulating water path is connected with a pipeline between the first water replenishing electric valve 117 and the first circulating water supply tank 100, and the second end of the bypass pipeline of the standby circulating water path is connected with a pipeline between the first water replenishing manual valve 118 and the first water filter 120; the both ends of the drainage pipeline of the standby circulating water channel are respectively connected with the first circulating water supply pool 100 and the water collecting well, the first drainage valve 116 is installed on the drainage pipeline of the standby circulating water channel, the first end of the overflow pipeline of the standby circulating water channel is connected with the first circulating water supply pool 100, and the second end of the overflow pipeline of the standby circulating water channel is connected with the drainage pipeline between the first drainage valve 116 and the first circulating water supply pool 100.
The main circulating water path comprises a second circulating water supply tank 200, a third water supply pump 201, a fourth water supply pump 202, a second water level switching value sensor 203, a second water level analog quantity sensor 204, a third flow meter 205, a third check valve 206, a third control valve 207, a third outlet valve 208, a fourth flow meter 209, a fourth check valve 210, a fourth control valve 211, a fourth outlet valve 212, a second water inlet valve 213, a second circulating cooler 214, a second water discharge valve 216, a second water replenishing electric valve, a second water replenishing manual valve 218, a second bypass water replenishing manual valve 219 and a second water filter 220; a third water supply pump 201 and a fourth water supply pump 202 are installed on the second circulating water supply tank 200, and the water inlet end of the water supply pumps is placed at the bottom of the second circulating water supply tank 200; a second water level switching value sensor 203 and a second water level analog value sensor 204 are arranged on the second circulating water supply tank 200, and the action ends are arranged in the second circulating water supply tank 200; the second water level switching value sensor 203 is provided with at least four detection positions, wherein the detection positions comprise a high water level, a water supplementing stopping water level, a water supplementing starting water level and a low water level; a third flow meter 205, a third check valve 206, a third control valve 207 and a third outlet valve 208 are sequentially arranged on a first pipeline of a main circulating water path at the water outlet end of the third water supply pump 201, a fourth flow meter 209, a fourth check valve 210, a fourth control valve 211 and a fourth outlet valve 212 are sequentially arranged on a second pipeline of the main circulating water path at the water outlet end of the fourth water supply pump 202, the first pipeline of the main circulating water path and the second pipeline of the main circulating water path are converged into a third pipeline of the main circulating water path, a second water inlet valve 213 and a second circulating cooler 214 are sequentially arranged on the third pipeline of the main circulating water path, and then the third pipeline of the main circulating water path is connected with the fourth pipeline through a first three-way valve 301; the second circulating water supply tank 200 is also connected with fire water supply through a fifth pipeline of a main circulating water path, a second water replenishing electric valve, a second water replenishing manual valve 218 and a second water filter 220 are sequentially arranged on the fifth pipeline of the main circulating water path, a bypass pipeline of the main circulating water path is also connected in parallel on the fifth pipeline of the main circulating water path, a second bypass water replenishing manual valve 219 is arranged on the bypass pipeline of the main circulating water path, the first end of the bypass pipeline of the main circulating water path is connected with a pipeline between the second water replenishing electric valve and the second circulating water supply tank 200 through a second water replenishing electric valve, and the second end of the bypass pipeline of the main circulating water path is connected with a pipeline between the second water replenishing manual valve 218 and the second water filter 220 through a second water replenishing electric valve; both ends of a drain pipe of the main circulation waterway are respectively connected with the second circulation water supply tank 200 and the water collection well, the second drain valve 216 is installed on the drain pipe of the main circulation waterway, the first end of an overflow pipe of the main circulation waterway is connected with the second circulation water supply tank 200, and the second end of the overflow pipe of the main circulation waterway is connected with the drain pipe between the second drain valve 216 and the second circulation water supply tank 200.
A third water filter 302, a water pressure gauge 303, a first water thermometer 304, unit air coolers, guide bearings 306 of each unit, a second water thermometer 308 and a second three-way valve 307 are sequentially arranged on a fourth pipeline which is respectively connected with the main circulating water path and the standby circulating water path, then the first end of the fourth pipeline is connected with the second circulating water supply tank 200, the second end of the fourth pipeline is also connected with the unit air coolers of a plurality of other units and the guide bearings 306 of each unit, in addition, the fourth pipeline is also connected with the first end of a fifth pipeline through the second three-way valve 307, and the second end of the fifth pipeline is connected with the first circulating water supply tank 100.
Under normal conditions, the unit technology water supply system alternately pumps cooling water in the second circulating water supply tank 200 through the third water supply pump 201 and the fourth water supply pump 202, the cooling water is cooled through the second circulating cooler 214 and then is sent to each part of the unit such as a bearing bush and an air cooler to absorb heat, and then the cooling water returns to the second circulating water supply tank 200 again to complete the circulating cooling process. Taking the third water supply pump 201 as an example, when the third water supply pump 201 is operated, the cooling water is pumped out from the second circulating water tank, when the pressure at the outlet of the water pump reaches a set value, the third control valve 207 is automatically opened, and the cooling water is sent to each unit (an upper guide, a thrust bearing, an air cooler, a lower guide bearing, a water guide bearing and the like) through the normally open third outlet valve 208, the second water inlet valve 213, the first three-way valve 301 and the water supply pipeline, and is returned to the second circulating water supply tank 200 through each unit water discharge pipeline and the second three-way valve 307 arranged at the position of the "circulating water tank" after heat exchange.
When the third water supply pump 201, the fourth water supply pump 202 or the second circulation cooler 214 is seriously failed and can not normally operate, the first outlet valve 108, the first water inlet valve 113 and the water outlet valve 115 are opened, the first three-way valve 301 is switched to the position of the 'standby technical water supply pump', the second three-way valve 307 is switched to the position of the 'standby circulating water tank', meanwhile, the third water inlet valve 309 of the first circulation water supply tank 100 is fully opened, and then the first water supply pump 101 or the second water supply pump 102 can restore the normal operation of the unit technical water supply system.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (8)
1. Water turbine technology water supply system, its characterized in that includes:
a main circulating water path;
at least one spare circulation water path; the water inlet end of the main circulating water path and the water inlet end of the standby circulating water path are both communicated with fire-fighting water supply, the water outlet end of the main circulating water path and the water outlet end of the standby circulating water path are both communicated with the water inlet ends of the unit air cooler and the guide bearings, and the water outlet ends of the unit air cooler and the guide bearings are respectively connected with the circulating water inlet end of the main circulating water path and the circulating water inlet end of the standby circulating water path.
2. The water turbine technical water supply system as claimed in claim 1, wherein the water outlet end of the spare circulation water path is further communicated with the water inlet ends of the unit air coolers and the guide bearings of the plurality of units, respectively.
3. The hydraulic turbine technical water supply system according to claim 1, wherein the main circulation waterway and the standby circulation waterway each include:
a circulating water supply tank;
a first water supply pump;
a second water supply pump; the water inlet end of the first water supply pump and the water inlet end of the second water supply pump are both arranged in the circulating water supply pool;
a circulation cooler; the water outlet end of the first water supply pump and the water outlet end of the second water supply pump are respectively connected with the water inlet end of the circulating cooler, and the water outlet end of the circulating cooler is communicated with the water inlet ends of the unit air cooler and the guide bearings of each part.
4. The hydraulic turbine technical water supply system according to claim 3, wherein each of the main circulation waterway and the standby circulation waterway further comprises:
a first check valve;
a first control valve;
a first outlet valve; the first check valve, the first control valve and the first outlet valve are sequentially arranged on a first pipeline connected with the water outlet end of the first water supply pump;
a second check valve;
a second control valve;
a second outlet valve; the second check valve, the second control valve and the second outlet valve are sequentially arranged on a second pipeline connected with the water outlet end of the second water supply pump; the first pipeline is connected with the second pipeline and then connected with the first end of a third pipeline, and the second end of the third pipeline is connected with a fourth pipeline leading to the unit air cooler and each guide bearing;
a first water inlet valve;
a water outlet valve; the first water inlet valve, the circulating cooler and the water outlet valve are sequentially arranged on the third pipeline.
5. The hydraulic turbine technical water supply system according to claim 4, wherein each of the main circulation waterway and the standby circulation waterway further comprises:
a first water level switching value sensor;
a first water level analog sensor; the first water level switching value sensor and the first water level analog value sensor are both arranged on the circulating water supply tank, and the action ends of the first water level switching value sensor and the first water level analog value sensor are arranged in the circulating water supply tank;
a first galvanometer; a first flow indicator is installed on a first pipeline between the first water supply pump and the first check valve;
a second galvanometer; the second flow indicator is installed on the first pipe between the second water supply pump and the second check valve.
6. The technical water supply system of the water turbine as claimed in claim 3, wherein the main circulation waterway and the spare circulation waterway each further comprise a water outlet valve, an overflow pipe, and a water discharge pipe, a first end of the water discharge pipe is connected to a bottom of the circulation water supply tank, a second end of the water discharge pipe is connected to the sump, the water outlet valve is installed on the water discharge pipe, a first end of the overflow pipe is connected to a side wall of the circulation water supply tank at an overflow water level, and a second end of the overflow pipe is connected to the water discharge pipe between the water outlet valve and the sump.
7. The hydraulic turbine technical water supply system according to claim 3, wherein each of the main circulation waterway and the standby circulation waterway further comprises:
a first water replenishing electric valve;
a first water-replenishing manual valve;
a first bypass water replenishing manual valve;
a first water filter;
a water inlet pipe; the first end of the water inlet pipeline is connected with the circulating water supply tank, and the second end of the water inlet pipeline is connected with the fire-fighting water supply; the first water replenishing electric valve, the first water replenishing manual valve and the first water filter are sequentially arranged on the water inlet pipeline;
a bypass water inlet pipe; the first bypass water replenishing manual valve is arranged on the bypass water inlet pipeline, the first end of the bypass water inlet pipeline is connected with a water inlet pipeline between the circulating water supply pool and the first water replenishing electric valve, and the second end of the bypass water inlet pipeline is connected with a water inlet pipeline between the first water replenishing manual valve and the first water filter.
8. The water turbine technical water supply system as claimed in claim 4, wherein a water filter, a water pressure gauge and a first water temperature gauge are further arranged on the fourth pipeline; and a second water temperature meter is arranged on the water outlet pipeline of the air cooler of the unit and each guide bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121946342.4U CN215719191U (en) | 2021-08-18 | 2021-08-18 | Water turbine technical water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121946342.4U CN215719191U (en) | 2021-08-18 | 2021-08-18 | Water turbine technical water supply system |
Publications (1)
| Publication Number | Publication Date |
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| CN215719191U true CN215719191U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121946342.4U Withdrawn - After Issue CN215719191U (en) | 2021-08-18 | 2021-08-18 | Water turbine technical water supply system |
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| CN (1) | CN215719191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542356A (en) * | 2022-02-10 | 2022-05-27 | 中国长江电力股份有限公司 | Water supply throttling system based on temperature control and control method |
-
2021
- 2021-08-18 CN CN202121946342.4U patent/CN215719191U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542356A (en) * | 2022-02-10 | 2022-05-27 | 中国长江电力股份有限公司 | Water supply throttling system based on temperature control and control method |
| CN114542356B (en) * | 2022-02-10 | 2023-06-13 | 中国长江电力股份有限公司 | Water supply throttling system based on temperature control and control method |
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