CN103806502B - Pipe network for communicated operation of cooling water filling system and production water supply system in low-temperature season - Google Patents
Pipe network for communicated operation of cooling water filling system and production water supply system in low-temperature season Download PDFInfo
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- CN103806502B CN103806502B CN201410090162.9A CN201410090162A CN103806502B CN 103806502 B CN103806502 B CN 103806502B CN 201410090162 A CN201410090162 A CN 201410090162A CN 103806502 B CN103806502 B CN 103806502B
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Abstract
The invention discloses a pipe network suitable for communicated operation of a cooling water filling system and a production water supply system in the low-temperature season in the hydropower station construction. A cooling water supply main pipe and a cooling water return main pipe which are respectively communicated with a water inlet and a water outlet of a cooling water filling pipe buried in concrete are arranged in the cooling water filling system; the cooling water supply main pipe is provided with a first electromagnetic flowmeter, a first electric butterfly valve and a first gate valve; the cooling water return main pipe is provided with a second electromagnetic flowmeter, a second electric butterfly valve and a second gate valve; a production water supply pipe with a third electromagnetic flowmeter, a third electric butterfly valve and a third gate valve is arranged in the production water supply system; the cooling water supply main pipe and the cooling water return main pipe are respectively communicated with a water chilling unit; a first communication pipe of which both ends are respectively communicated with the cooling water return main pipe and the production water supply pipe is arranged in the pipe network; the first communication pipe is provided with a fourth gate valve. The pipe network can reduce cost of cooling water filling and production water supply, reduce operation and maintenance investment and ensure the construction progress, quality and cost of the large-volume concrete.
Description
technical field:
The present invention relates in a kind of construction of hydropower stations the pipe network being applicable to cooling water passage system in low temperature time Temperature Controlling of Mass Concrete process and production water supply system connectivity and running.
background technology:
At present, traditional cooling water system and production water supply system is adopted to carry out temperature control and supply industrial water to concrete in mass in the construction of hydropower stations respectively.Traditional cooling water system of use is two large independently systems with producing water system, cooling water supply or production water all separately.During the low temperature time, river temperature meets cooling water flowing inflow temperature, cooling water can be directly used in, generally there are two kinds of ways in the water flowing of low temperature time: a kind of way does not open handpiece Water Chilling Units, river is after cooling tube group temperature raises, directly emit, do not stop supply river, ceaselessly " discard ", form open type cooling water passage system; Another kind of way continues to open cooling unit, river by cooling water system group through concrete internal temperature raise after, handpiece Water Chilling Units is returned by return pipe, freezed by handpiece Water Chilling Units, cooling water supply again, the water yield of loss carries out supply by filling pipe, forms closed cycle cooling water passage system.
System, in running, there will be output large, and general employing is from different ponds difference cooling water supply and produce water, sends someone respectively to carry out operation maintenance to two cover systems.Along with the rising pressure of supply water of concrete height is not enough, the pond supply of more high position is taked to produce water, reinstall a feed pipe to meet the requirement of production water supply, and the pipeline installed in this context, there will be Pipe installing circuit oversize, uneconomic situation, or along with construction constantly propelling, need to move tubulature road to eliminate irrational situations such as the impacts of constructing.Thus affect the aspect such as construction speed, construction quality, construction cost of concrete in mass.
summary of the invention:
The object of the invention is in order to energy-conservation when providing a kind of low temperature reduction cooling water flowing and production water supply cost, reduce operation maintenance and drop into, effectively solve the production water supply water yield and insufficient pressure, the pipe network that the low temperature time cooling water passage system of the construction speed, construction quality, construction cost etc. of guarantee concrete in mass and production water supply system connectivity are run.
The object of the present invention is achieved like this:
The pipe network that low temperature time cooling water passage system of the present invention and production water supply system connectivity are run, have in cooling water passage system respectively with the entering of the cooling water service pipe be embedded in concrete, the cooling vibration means for main pipe for supplying water that delivery port is communicated with, cooling backwater is responsible for, cooling vibration means for main pipe for supplying water is equipped with the first electromagnetic flowmeter, first electric butterfly valve, first gate valve, cooling backwater supervisor is equipped with the second electromagnetic flowmeter, second electric butterfly valve, second gate valve, band the 3rd electromagnetic flowmeter is had in production water supply system, 3rd electric butterfly valve, the production water supply pipe of the 3rd gate valve, cooling vibration means for main pipe for supplying water, cooling backwater supervisor be communicated with handpiece Water Chilling Units respectively, two ends are had to be responsible for the first communicating pipe be communicated with production water supply pipe respectively with cooling backwater in pipe network, the 4th gate valve is equipped with the first communicating pipe, first flap valve.
The 5th gate valve second flap valve is equipped with the second communicating pipe having two ends to be communicated with cooling vibration means for main pipe for supplying water, production water supply pipe respectively in above-mentioned pipe network, the second communicating pipe.
The handpiece Water Chilling Units filling pipe of band the 6th gate valve be communicated with handpiece Water Chilling Units above-mentioned production water supply pipe is equipped with.
The low temperature time, during pipe network work of the present invention, open the 4th gate valve on the first communicating pipe, river supplies industrial water by the production water supply pipe entered the first communicating pipe in production water supply system after the cooling vibration means for main pipe for supplying water in cooling water passage system with the cooling water service pipe be embedded in concrete; Open the 5th gate valve on the second communicating pipe, cooling vibration means for main pipe for supplying water supplies water directly to production water supply pipe.And run by cooling water passage system and production water supply system grid connection, cooling water, by after cooling pipe network, all supplies concrete production water, therefore, when the low temperature time, the cooling water that " discarding " temperature raises can be reached neither, do not open again the object of handpiece Water Chilling Units, save a large sum of construction cost.
The applicant has made lot of experiments, for left bank, kwan-yin rock power station dam concrete construction, the concrete moon intensity be 23.9 ten thousand m
3, cooling water pipe amounts to 354 groups, according to water flowing 21 days meters, has the cooling water pipe of 2/3 in water flowing, i.e. 236 groups of water pipes, according to water flowing flow 1.2m simultaneously
3/ h, amounts to 255m
3/ h, considers the loss of 10%, and cooling water needs to supply 280m
3/ h; Concrete moon intensity 23.9 ten thousand m
3, i.e. 330m
3/ h, every cube of concrete and other about need 1m
3production water supply, the level of production all need supply 330m
3/ h.
Be communicated with by cooling water system be incorporated into the power networks with production water system, production water in head-tank completes concrete in mass cooling supply water and production water supply respectively through cooling water system, production water system, from above-mentioned calculating, cooling water expense is less than produces water expense, and the water of head-tank can only supply about 270m after supercooling water system
3the water yield of about/h, remains about 60m
3the water yield of/h by producing water system supply voluntarily, after the stage supplied water, two cover systems all carry out removing and on move on to next elevation.
Cooling water passage system of the present invention and production water supply system connectivity are incorporated into the power networks to invent in cooling water supply in the dam concrete construction of left bank, kwan-yin rock power station and production water supply and obtain effective enforcement, respond well.
Cooling water passage system of the present invention and production water supply system connectivity be incorporated into the power networks solve cool that concrete water flowing cost is high, operation maintenance has high input, the problem of the production water supply water yield and insufficient pressure.In the practice of construction process in low temperature time, cooling water passage system and production water supply system are built simultaneously, are come into operation simultaneously, and the water in production pond enters production grid again after cooling water passage system, supply concrete in mass industrial water.
By being incorporated into the power networks of two Iarge-scale system, supply industrial water by cooling water pipe network, form cooling system water and be supplied to concrete construction water after concrete temperature rise, avoid the cooling water after temperature rise to pass back into handpiece Water Chilling Units, reduce cooling water producing cost.
When this two Iarge-scale system is built, cooling feed pipe and production water supply pipe are built simultaneously, adjacent installation, during two Iarge-scale system maintenance operations, only need a class to be responsible for, decrease operation maintenance Meteorological.
Because production water supply is supplied by cooling water flowing substantially, avoid production pond cooling water supply and production water supply simultaneously, its pressure can be regulated by the water pump in cold water station, to reach the problem overcoming the production water supply water yield and hydraulic pressure deficiency simultaneously.
Be incorporated into the power networks simplicity of design, principle of cooling water passage system of the present invention and production water supply system connectivity is directly perceived, easy to use, and be applicable to the cooling water flowing in mass concrete construction and production water supply, this two cover system can reuse substantially.After this system comes into operation, overcome the series of problems such as cooling water flowing and production water supply cost is high, operation maintenance has high input, the production water supply water yield and insufficient pressure.
During the low temperature time, river temperature all meets cooling water flowing inflow temperature, cooling water can be directly used in, generally there are two kinds of ways in the water flowing of low temperature time: a kind of way does not open handpiece Water Chilling Units, river is after cooling tube group temperature raises, directly emit, do not stop supply river, ceaselessly " discard ", form open type cooling water passage system; Another kind of way continues to open cooling unit, and river, after cooling tube group temperature raises, returns handpiece Water Chilling Units by return pipe, freezed by handpiece Water Chilling Units, cooling water supply again, the water yield of loss carries out supply by filling pipe, forms closed cycle cooling water passage system.Because cooling water passage system and production water supply system grid connection are run, and cooling water is by after cooling pipe network, all supply concrete construction industrial water, therefore, when the low temperature time, the cooling water that " discarding " temperature raises can be reached neither, do not open again the object of handpiece Water Chilling Units.
Its diseconomy of cooling water mode " discarding " temperature rising is mainly reflected in the waste of the water yield, the water yield 280m of waste
3/ h, for left bank, kwan-yin rock power station dam, in the February of annual November to next year, tank water temperature all meets cooling water flowing inflow temperature, and do not need to freeze, in whole engineering construction, this type of month has 4 months.The water yield of waste amounts to: 280 × 4 × 30 × 24=806400m
3, produce the unit price 1.16 yuan/m of water
3, water rate amounts to: 806400 × 1.16=935424 unit.The cooling water " discarded " flows into dam foundation ditch and also needs to discharge, and effluent cost is 0.6 yuan/m
3, then need to increase effluent cost: 806400*0.6=483840 unit.The method cost 141.92 ten thousand yuan.
Open this cost of handpiece Water Chilling Units, mainly handpiece Water Chilling Units refrigeration, calculated by this project data, cooling water outlet and inlet average temperature rising gets 10.0 DEG C, then what cooling water entered dam body is 10 DEG C, is 20 DEG C after circulation out.Water is cooled to 10 DEG C by 20 DEG C, supply 280m
3the cooling water of/h, in the February of annual November to next year, needs 10 DEG C of cooling water 280 × 24 × 30 × 4=806400m altogether
3, consider the natural moisturizing of 20%, then reality needs 10 DEG C of cooling water 806400 × 0.8=645120m
3.Making 10 DEG C of cooling water unit prices is 4.09 yuan/m3, then cooling water flowing expense is 645120*4.09=263.85 ten thousand yuan.
Employing cooling water passage system and production water supply system connectivity are incorporated into the power networks after scheme, and increase DN200 pipeline 6m, DN200 gate valve (Pn=1.6MPa) 2,2, DN200 flap valve (Pn=1.6MPa), the pipeline member such as threeway, elbow 0.5t, invests about 1.5 ten thousand yuan.Visible: to adopt this cooling water passage system and production water supply system connectivity to be incorporated into the power networks, the cooling water that temperature raises neither " can be discarded ", do not open handpiece Water Chilling Units again, the cost of saving at least 140.42 ten thousand yuan.
Pipe network of the present invention makes the personnel of two Iarge-scale system operation maintenance reduce, and decreases the personnel amount of construction plant, reduces occurrence probability of safety accidents; Two is when the production water supply water yield and hydraulic pressure deficiency, can open the supply-water pump in handpiece Water Chilling Units, carry out the increase of pressure of supply water, and avoiding occurs supplying water the appearance of phenomenon such as to cut off the water supply, and ensures normally carrying out of concrete construction.
accompanying drawing illustrates:
Fig. 1 is pipe network operation figure of the present invention.
Fig. 2 is cooling water system and production water system independent operating schematic diagram.
detailed description of the invention:
See Fig. 1, the pipe network that the present embodiment low temperature time cooling water passage system and production water supply system connectivity are run, has the cooling vibration means for main pipe for supplying water 4 of the water bag 3 having belt controling valve 2 respectively, cooling backwater to be responsible for 5 in cooling water passage system 1.Cooling vibration means for main pipe for supplying water, cooling backwater supervisor are communicated with respectively by the entery and delivery port of water bag with the cooling water service pipe be embedded in concrete.Cooling vibration means for main pipe for supplying water is equipped with the first electromagnetic flowmeter 6, first electric butterfly valve 7, first gate valve 8.Cooling backwater supervisor is equipped with the second electromagnetic flowmeter 9, second electric butterfly valve 10, second gate valve 11.The production water supply pipe 15 of band the 3rd electromagnetic flowmeter 12, the 3rd electric butterfly valve 13, the 3rd gate valve 14 is had in production water supply system.Cooling vibration means for main pipe for supplying water, cooling backwater supervisor are communicated with handpiece Water Chilling Units 16 respectively.Two ends are had to be responsible for the first communicating pipe 17 be communicated with production water supply pipe respectively with cooling backwater in pipe network.The 4th gate valve 18, first flap valve 19 is equipped with first communicating pipe.The second communicating pipe 20 that two ends are communicated with cooling vibration means for main pipe for supplying water, production water supply pipe is respectively had in pipe network.The 5th gate valve 21, second flap valve 22 is equipped with second communicating pipe.The handpiece Water Chilling Units filling pipe 24 of band the 6th gate valve 23 be communicated with handpiece Water Chilling Units production water supply pipe is equipped with.
In the present embodiment, each parameter is according to cooling water flowing 280m
3/ h, production water supply 330m
3/ h considers, handpiece Water Chilling Units adopts WSC087/C3612 type Mobile cold water station, according to its parameter request, the caliber cooling vibration means for main pipe for supplying water, cooling backwater is responsible for is selected to be DN200, production water supply pipe caliber is also chosen as DN200, the annexes such as all electric butterfly valves, electromagnetic flowmeter are all located in Mobile cold water station, facilitate unified management, electric butterfly valve all adopts DN200 electric butterfly valve, it controls power supply and all draws from the switchgear house of handpiece Water Chilling Units and connect, and operation control room is located in handpiece Water Chilling Units janitor's room.
During work, the tank water meeting cooling water flowing requirement enters cold water station through pond outlet pipe, when not opening handpiece Water Chilling Units, flows into cooling water supply network, cool water service pipe by the Φ 32HDPE be embedded in concrete, after reducing concrete internal temperature, flow into cooling backwater supervisor.Enter cooling backwater supervisor, temperature raise cooling water by the first communicating pipe, enter the production water supply pipe in production water supply system.Enter cooling water in production water supply pipe by each water spot on concrete storehouse surface, supply concrete construction water, meanwhile, the part of insufficient water carries out supply by tank water by the second communicating pipe and production water supply system.
See Fig. 1, except closing on cooling unit filling pipe except the 6th gate valve, open all gate valves, by the open degree of the first electric butterfly valve on the main vibration means for main pipe for supplying water of controlled cooling model, the reading arranging the first electromagnetic flowmeter on cooling vibration means for main pipe for supplying water is 280m
3/ h, when large leakage loss does not appear in cooling water system, the reading of the second electromagnetic flowmeter on cooling backwater supervisor should be 270m
3/ h, closes the second electric butterfly valve on cooling backwater supervisor completely, regulates the 3rd electric butterfly valve on production water supply pipe, arrange the reading 60m of the electromagnetic flowmeter on production water supply pipe
3/ h, in running, regulates the open degree of electrically operated valve at any time, adjusts above-mentioned data according to cooling water expense and the expense of producing water.
Fig. 2 is traditional cooling water passage system and production water supply system independent operating schematic diagram.
Above-described embodiment is further described foregoing of the present invention, but this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to above-described embodiment.All technology realized based on foregoing all belong to scope of the present invention.
Claims (3)
1. the pipe network that runs of low temperature time cooling water passage system and production water supply system connectivity, have in cooling water passage system respectively with the entering of the cooling water service pipe be embedded in concrete, the cooling vibration means for main pipe for supplying water that delivery port is communicated with, cooling backwater is responsible for, cooling vibration means for main pipe for supplying water is equipped with the first electromagnetic flowmeter, first electric butterfly valve, first gate valve, cooling backwater supervisor is equipped with the second electromagnetic flowmeter, second electric butterfly valve, second gate valve, band the 3rd electromagnetic flowmeter is had in production water supply system, 3rd electric butterfly valve, the production water supply pipe of the 3rd gate valve, cooling vibration means for main pipe for supplying water, cooling backwater supervisor be communicated with handpiece Water Chilling Units respectively, it is characterized in that in pipe network, having two ends to be responsible for the first communicating pipe be communicated with production water supply pipe respectively with cooling backwater, the 4th gate valve is equipped with the first communicating pipe, first flap valve.
2. the pipe network that runs of low temperature time cooling water passage system as claimed in claim 1 and production water supply system connectivity, it is characterized in that the second communicating pipe having two ends to be communicated with cooling vibration means for main pipe for supplying water, production water supply pipe respectively in pipe network, be equipped with the 5th gate valve, the second flap valve the second communicating pipe.
3. the pipe network that runs of low temperature time cooling water passage system as claimed in claim 1 or 2 and production water supply system connectivity, is characterized in that handpiece Water Chilling Units filling pipe production water supply pipe being equipped with band the 6th gate valve be communicated with handpiece Water Chilling Units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410090162.9A CN103806502B (en) | 2014-03-13 | 2014-03-13 | Pipe network for communicated operation of cooling water filling system and production water supply system in low-temperature season |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410090162.9A CN103806502B (en) | 2014-03-13 | 2014-03-13 | Pipe network for communicated operation of cooling water filling system and production water supply system in low-temperature season |
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| Publication Number | Publication Date |
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| CN103806502A CN103806502A (en) | 2014-05-21 |
| CN103806502B true CN103806502B (en) | 2015-01-21 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104047290B (en) * | 2014-06-16 | 2016-06-22 | 中国葛洲坝集团第六工程有限公司 | Dam cooling water reversing and water distributing device |
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| JP2003222346A (en) * | 2002-01-30 | 2003-08-08 | Asahi Kasei Corp | Heat accumulation type cooling and heating device |
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| CN101921134A (en) * | 2010-07-16 | 2010-12-22 | 葛洲坝集团试验检测有限公司 | Intelligent cooling water passage system for concrete |
| CN201713817U (en) * | 2010-05-06 | 2011-01-19 | 葛洲坝集团第二工程有限公司 | Concrete temperature control cooling water bidirectional return device |
| CN202000313U (en) * | 2011-04-14 | 2011-10-05 | 中国葛洲坝集团股份有限公司 | Dam concrete cooling water recycling device |
| CN103225405A (en) * | 2013-04-08 | 2013-07-31 | 中国葛洲坝集团股份有限公司 | Mass-concrete cooling water recycling device and method |
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2014
- 2014-03-13 CN CN201410090162.9A patent/CN103806502B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818979A (en) * | 1971-12-09 | 1974-06-25 | Tour Agenturer Ab | Heat exchange system |
| JP2003145576A (en) * | 2001-11-12 | 2003-05-20 | Kanto Auto Works Ltd | Molding processing method for thermoplastic resin and molding apparatus therefor |
| JP2003222346A (en) * | 2002-01-30 | 2003-08-08 | Asahi Kasei Corp | Heat accumulation type cooling and heating device |
| CN101672106A (en) * | 2009-08-11 | 2010-03-17 | 中国建筑第五工程局有限公司东莞分公司 | Construction method of temperature decrease and crack prevention of mass concrete by utilizing thin-walled corrugated pipe circulating water system |
| CN201713817U (en) * | 2010-05-06 | 2011-01-19 | 葛洲坝集团第二工程有限公司 | Concrete temperature control cooling water bidirectional return device |
| CN101921134A (en) * | 2010-07-16 | 2010-12-22 | 葛洲坝集团试验检测有限公司 | Intelligent cooling water passage system for concrete |
| CN202000313U (en) * | 2011-04-14 | 2011-10-05 | 中国葛洲坝集团股份有限公司 | Dam concrete cooling water recycling device |
| CN103225405A (en) * | 2013-04-08 | 2013-07-31 | 中国葛洲坝集团股份有限公司 | Mass-concrete cooling water recycling device and method |
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Free format text: FORMER OWNER: ZHANG JUNLAI HE CHANGMING Effective date: 20150424 Owner name: GEZHOUBA GROUP NO.1 ENGINEERING CO., LTD. Free format text: FORMER OWNER: GUO XIAOYONG Effective date: 20150424 |
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Free format text: CORRECT: ADDRESS; FROM: 617000 PANZHIHUA, SICHUAN PROVINCE TO: 443002 YICHANG, HUBEI PROVINCE |
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Effective date of registration: 20150424 Address after: 443002 Dongshan Avenue, Hubei, Yichang, No. 54 Patentee after: Gezhouba Group No.1 Engineering Co., Ltd. Address before: 617000, Sichuan City, Panzhihua Province, West Ping Town Postal Bureau to turn Guanyin hydropower station on the right bank water supply system construction project department Patentee before: Guo Xiaoyong Patentee before: Zhang Junlai Patentee before: He Changming |