CN203534244U - Power station circulating water system based on artesian water diversion technology - Google Patents

Power station circulating water system based on artesian water diversion technology Download PDF

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Publication number
CN203534244U
CN203534244U CN201320500783.0U CN201320500783U CN203534244U CN 203534244 U CN203534244 U CN 203534244U CN 201320500783 U CN201320500783 U CN 201320500783U CN 203534244 U CN203534244 U CN 203534244U
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China
Prior art keywords
water
circulating water
pipe
power station
pipeline
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Expired - Fee Related
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CN201320500783.0U
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Chinese (zh)
Inventor
郭研
刘志宏
陈保同
刘翠英
刘现星
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719th Research Institute of CSIC
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719th Research Institute of CSIC
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Abstract

The utility model relates to a power station circulating water system, and provides a power station circulating water system based on the artesian water diversion technology. The power station circulating water system comprises a high-position water source arranged at the high position, a water inlet is formed inside the high-position water source, a filtering device is arranged at the position of the water inlet, a preprocessing device is arranged on a water inlet pipe connected with the water inlet, an artesian pipe is connected with an outlet of the preprocessing device, a first regulating valve and a first check valve are arranged on the artesian pipe, a pumping flowing pipe is connected with the artesian pipe in parallel, a second regulating valve, a second check valve and a circulating water pump are arranged on the pumping flowing pipe, a circulating water pipe is formed after the artesian pipe and the pumping flowing pipe are converged, and a condenser is arranged on the circulating water pipe and connected with a water outlet located in the low position through a water outlet pipe. According to the power station circulating water system, energy consumption of an existing power station circulating water system with a pressure head provided by a circulating water pump can be effectively reduced, the size, the power, the guarantee cost and the maintenance cost of the circulating water pump can be effectively reduced, the dependency of the power station circulating water system on the circulating water pump is reduced, and the economical efficiency and the safety performance of the power station circulating water system are improved.

Description

Circulating-Water System in Power Station based on artesian diversion technology
Technical field
The utility model relates to a kind of Circulating-Water System in Power Station, particularly relates to the formed gravity flow process of the heavy position pressure head effect of a kind of utilization, spontaneously from being arranged in the high-level water source of eminence, obtains the Circulating-Water System in Power Station based on artesian diversion technology of cooling water.
Background technology
Circulating-Water System in Power Station adopts water circulating pump to provide system required pressure head more, for condenser or other heat exchange equipment are supplied with enough cooling waters.Yet it is very large that water circulating pump moves required energy consumption.The expenses such as the guarantee that in addition, water circulating pump operation brings, maintenance also can not be ignored.The more important thing is, once water circulating pump, break down for various reasons, the cooling water that circulation provides will interrupt, and some need cooling water to carry out cooling system also can not normally to move, thereby cause chain reaction.In order to guarantee the normal operation of system, standby water circulating pump is set conventionally, and has strengthened like this expense of the investment of equipment and guarantee, maintenance.So no matter from the viewpoint of economy or security, the Circulating-Water System in Power Station that relies on water circulating pump all has a lot of problems.
Summary of the invention
The purpose of this utility model is exactly in order to overcome above-mentioned weak point of the prior art, a kind of Circulating-Water System in Power Station based on artesian diversion technology is provided, can effectively reduce existing dependence water circulating pump the energy consumption of Circulating-Water System in Power Station of pressure head and the size of water circulating pump, power, guarantee, maintenance cost are provided, reduce the dependence of circulation to water circulating pump, improve system economy and security.
The purpose of this utility model is achieved by the following technical measures: the Circulating-Water System in Power Station based on artesian diversion technology, comprise pinnacled high-level water source is set, in high-level water source, be provided with water inlet, water inlet place arranges filter, the inlet channel being connected with water inlet is provided with pretreatment unit, pipe gravity flow pipeline is connected with pretreatment unit outlet, pipe gravity flow pipeline is provided with 1# control valve and 1# check-valves, pump stream pipeline is in parallel with pipe gravity flow pipeline, pump stream pipeline is provided with 2# control valve, 2# check-valves and water circulating pump, behind pipe gravity flow pipeline and pump stream pipeline interflow, form circulating water pipeline, circulating water pipeline is provided with condenser, condenser is connected with the delivery port that is positioned at lower through drainage pipeline.The cooling water that pinnacled high-level water source provides is set, after filter, from water inlet, flow into, by inlet channel, pretreatment unit, pipe gravity flow pipeline in parallel and pump stream pipeline, circulating water pipeline, condenser in parallel and other heat exchanger, drainage pipeline, finally from being positioned at the delivery port of lower, flow out successively.
Water quality situation for system operation to the requirement of water quality and water inlet high-level water source of living in itself, pretreatment unit is set, the cooling water of the system of entering is carried out to necessary processing, and the technology such as coagulation, clarification, media filtration or membrane filtration that comprise are processed cooling water.
Described system water inlet arranges in pinnacled high-level water source, and described delivery port is arranged on lower, and water inlet and delivery port in the vertical direction exist difference in height.
The difference in height that described water inlet and delivery port in the vertical direction exist is determined according to the required pressure head of circulation and the geographical conditions that choose a site for building a factory.The heavy position pressure head that difference in height produces is in principle greater than the required pressure head of circulation; If can not meet, water circulating pump back work all the time is in operation.
The described cooling water after filter and pretreatment unit processing can reach the required water quality requirement of system.
Condenser on described circulating water pipeline can use in parallel with other heat exchanger.
The utility model utilizes artesian diversion technology system water inlet to be arranged on to the high-level water source that is arranged in eminence, delivery port is arranged on lower, the formed heavy position pressure head effect of difference in height that utilizes water inlet and delivery port in the vertical direction to exist, spontaneously from high-level water source, obtain a large amount of cooling waters, flow in circulation, to condenser and other heat exchanger, provide cooling water, system just starts water circulating pump when just and cooling water flow demand initial in operation is excessive, dependence to water circulating pump is very little, even recirculated water air pump inoperative, system only also can maintain certain flow by gravity flow process, allow staff have time enough to make reply.System energy consumption is few, and water circulating pump size and power are little, ensures, maintenance cost is few, and the economy of system and security are all improved greatly.In addition, pipe gravity flow pipeline and in parallel use of pump stream pipeline, in gravity flow process, pump stream closedown of pipeline, cooling water only flows pipeline by pump, and the resistance to system while having avoided water circulating pump not move, makes system gravity flow ability reach optimum state.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Circulating-Water System in Power Station of the utility model based on artesian diversion technology.
Wherein: 1. high-level water source, 2. water inlet, 3. filter, 4. inlet channel, 5. pretreatment unit, 6. pipe gravity flow pipeline, 7.1# control valve, 8.1# check-valves, 9. pump stream pipeline, 10.2# control valve, 11. water circulating pumps, 12.2# check-valves, 13. circulating water pipelines, 14. condensers, 15. other heat exchangers, 16. drainage pipelines, 17. delivery ports.
The specific embodiment
Below in conjunction with accompanying drawing, the technical scheme in the utility model is clearly and completely described.
Circulating-Water System in Power Station based on artesian diversion technology of the present utility model, adopts coagulation, clarification, media filtration or membrane filtration technique as pretreating process, makes the cooling water of the system of entering after pretreatment unit, can reach the required water quality requirement of system.
Circulating-Water System in Power Station based on artesian diversion technology of the present utility model, the formed heavy position pressure head effect of difference in height that utilizes system water inlet and delivery port in the vertical direction to exist, spontaneously from high-level water source, obtain a large amount of cooling waters, flow in circulation, to condenser or other heat exchanger, provide cooling water, system just starts water circulating pump when just and cooling water flow demand initial in operation is excessive, very little to the dependence of water circulating pump.
As shown in Figure 1, Circulating-Water System in Power Station based on artesian diversion technology of the present utility model, comprise pinnacled high-level water source 1 is set, be arranged in the water inlet 2 of high-level water source 1, the outer filter 3 arranging of water inlet, the inlet channel 4 being connected with water inlet 2, be arranged on the pretreatment unit 5 on inlet channel 4, the pipe gravity flow pipeline 6 being connected with pretreatment unit 5 outlets, be arranged on 1# control valve 7 and 1# check-valves 8 on pipe gravity flow pipeline 6, the pump stream pipeline 9 in parallel with pipe gravity flow pipeline 6, be arranged on the 2# control valve 10 on pump stream pipeline 9, 2# check-valves 12 and water circulating pump 11, the circulating water pipeline 13 forming behind pipe gravity flow pipeline 6 and pump stream pipeline 9 interflow, be arranged on the condenser 14 on circulating water pipeline 13, other heat exchanger 15 in parallel with condenser 14, the drainage pipeline 16 forming behind condenser 14 place pipelines and other heat exchanger 15 pipeline interflow, place, be arranged on the delivery port that is positioned at lower 17 of drainage pipeline 16 ends, the cooling water that pinnacled high-level water source 1 provides is set, after filter 3, from water inlet 2, flow into, by inlet channel 4, pretreatment unit 5, pipe gravity flow pipeline 6 in parallel and pump stream pipeline 9, circulating water pipeline 13, condenser 14 in parallel and other heat exchanger 15, drainage pipeline 16, finally from being positioned at the delivery port 17 of lower, flow out successively.
In order to produce enough heavy positions pressure head between system water inlet 2 and delivery port 17, take and overcome the resistance pressure head of system and provide cooling water endlessly as system, described system water inlet 2 is arranged on the high-level water source 1 that is arranged in eminence, described cooling water outlet 17 is arranged on lower, there is difference in height in water inlet 2 and delivery port 17 in the vertical directions, height difference can be determined according to the required pressure head of concrete system and the geographical conditions that choose a site for building a factory.The heavy position pressure head that difference in height produces is in principle greater than the required pressure head of circulation; If can not meet, water circulating pump back work all the time is in operation.
In order to meet the requirement of system to cooling water quality, can screen pack be set in filter and process roughly, then in pretreatment unit 5, adopt coagulation, clarification, media filtration or membrane filtration technique to carry out pretreatment to the cooling water of the system of entering.
For the ease of flow system flow and pressure head are regulated, on pipe gravity flow pipeline 6, parallel-connected pumps stream pipeline 9, is provided with 1# control valve 7 and 1# check-valves 8 on pipe gravity flow pipeline 6, on pump stream pipeline 9,2# control valve 10,2# check-valves 12 and water circulating pump 11 is installed; 1# check- valves 8 and 2# check-valves 12 are used for preventing that cooling water from refluxing, and 1# control valve 7,2# control valve 10 and water circulating pump 11 are used in conjunction with, regulating system flow.In addition, pipe gravity flow pipeline and in parallel use of pump stream pipeline, in gravity flow process, pump stream closedown of pipeline, cooling water only flows pipeline by pump, and the resistance to system while having avoided water circulating pump not move, makes system gravity flow ability reach optimum state.
In order to meet the needs of a plurality of heat transmission equipments, the condenser 14 on circulating water pipeline 13 can use with other heat exchanger 15 parallel connections, if needed, also can need watering equipment by parallel other.Described other heat exchanger can be the heat transmission equipments such as unit cooler, oil cooler.
The operation principle of the Circulating-Water System in Power Station based on artesian diversion technology of the present utility model is to utilize the formed heavy position pressure head effect of difference in height of water inlet 2 and delivery port 17 in the vertical directions existence, thereby produce gravity flow process.In gravity flow process, the cooling water that is arranged in the high-level water source 1 of eminence is weighing under the effect of position pressure head, flows into, through filter 3 from water inlet 2 after pretreatment unit 5 is processed, enter in circulation, to condenser 14 or other heat exchanger 15, provide cooling water.Initial in operation, 1# control valve 7 and 2# control valve 10 all keep full-gear, start water circulating pump 11, and cooling water is flowed in circulation.When cooling water is full of whole circulation, between the water inlet 2 in eminence and the delivery port 17 at lower, form heavy position pressure head, set up after gravity flow process, if formed heavy position pressure head can provide system required pressure head between water inlet 2 and delivery port 17, can successively close water circulating pump 11 and 2# control valve 10, it is required with other heat exchanger 15 that system only can meet condenser 14 by pipe gravity flow pipeline, and when heavy position pressure head is greater than the required pressure head of system, need to regulate 1# control valve 7 to appropriate location, make the total pressure head of system and required pressure head coupling; If formed heavy position pressure head is not enough to provide system required pressure head between water inlet 2 and delivery port 17,1# control valve 7 and 2# control valve 10 still keep full-gear, regulate water circulating pump 11 to suitable speed, to make up residual head, make the total pressure head of system and required pressure head coupling.In running, 1# check- valves 8 and 2# check-valves 12 work to prevent that cooling water from refluxing, and system is by regulating 1# control valve 7,2# control valve 10 and water circulating pump 11 to meet the requirement of system to flow and pressure head.

Claims (2)

1. the Circulating-Water System in Power Station based on artesian diversion technology, it is characterized in that: comprise pinnacled high-level water source is set, in high-level water source, be provided with water inlet, water inlet place arranges filter, the inlet channel being connected with water inlet is provided with pretreatment unit, pipe gravity flow pipeline is connected with pretreatment unit outlet, pipe gravity flow pipeline is provided with 1# control valve and 1# check-valves, pump stream pipeline is in parallel with pipe gravity flow pipeline, pump stream pipeline is provided with 2# control valve, 2# check-valves and water circulating pump, behind pipe gravity flow pipeline and pump stream pipeline interflow, form circulating water pipeline, circulating water pipeline is provided with condenser, condenser is connected with the delivery port that is positioned at lower through drainage pipeline.
2. the Circulating-Water System in Power Station based on artesian diversion technology according to claim 1, is characterized in that: described water inlet and delivery port in the vertical direction exist difference in height.
CN201320500783.0U 2013-08-16 2013-08-16 Power station circulating water system based on artesian water diversion technology Expired - Fee Related CN203534244U (en)

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CN201320500783.0U CN203534244U (en) 2013-08-16 2013-08-16 Power station circulating water system based on artesian water diversion technology

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Application Number Priority Date Filing Date Title
CN201320500783.0U CN203534244U (en) 2013-08-16 2013-08-16 Power station circulating water system based on artesian water diversion technology

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110525624A (en) * 2019-09-25 2019-12-03 中国船舶重工集团公司第七一九研究所 It is a kind of parallel from flow cooling system and ship

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110525624A (en) * 2019-09-25 2019-12-03 中国船舶重工集团公司第七一九研究所 It is a kind of parallel from flow cooling system and ship

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140409

Termination date: 20150816

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