CN203549982U - Circulating water system of thermal power plant - Google Patents
Circulating water system of thermal power plant Download PDFInfo
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- CN203549982U CN203549982U CN201320740806.5U CN201320740806U CN203549982U CN 203549982 U CN203549982 U CN 203549982U CN 201320740806 U CN201320740806 U CN 201320740806U CN 203549982 U CN203549982 U CN 203549982U
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- recirculated water
- backwater
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 267
- 238000001816 cooling Methods 0.000 claims abstract description 86
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 38
- 238000004140 cleaning Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 3
- 239000002918 waste heat Substances 0.000 description 15
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a circulating water system of a thermal power plant. The circulating water system is composed of a first unit and a second unit. The first unit is composed of a first cooling tower 1, a first circulating water pump 4, a first condenser 8, an ice breaking pipeline valve 2, a circulating water return water female pipe valve 3 and a circulating water pipeline valve 25. The second unit is composed of a second cooling tower 11, a second circulating water pump 14, a second condenser 18, a second ice breaking pipeline valve 12 and a second circulating water return water female pipe first valve 13. The circulating water system of the thermal power plant is simple in structure, flexible, convenient to adjust and suitable for various environment temperatures and working conditions, energy and electricity are saved, and the problems that an existing circulating water system of the thermal power plant cannot operate safely or stably and a cooling tower and a water pool are frozen are thoroughly solved.
Description
[technical field]
The utility model belongs to generating equipment cooling technology field.More specifically, the utility model relates to the Circulated water system of thermal power plant with function of recovering waste heat.
[background technology]
Along with country is about the enforcement of " energy-saving and emission-reduction " and fired power generating unit " upper large press little " policy, take the steam power plant that is equipped with good economy performance, large capacity steam extraction and condensing formula unit that load performance is strong as the concentrated supply of heating in the city system of thermal source more general in China " three Norths " area.And in recent years, steam power plant is aided with that absorption heat pump reclaims circulating water afterheat, the transformation that realizes energy efficiency has become irreversible gesture.But the cooling tower bringing thus freezes, heat pump performance guarantees and the problem such as recirculated water optimization operation is also more outstanding.
The steam power plant that adopts extraction condensing type unit, ubiquity waste heat amount is with the problem of environmental temperature fluctuation.Supplying the warm season initial stage, environment temperature is higher, and waste heat amount exceeds the recoverable ability of absorption heat pump greatly, and now recirculated water still needs tower cooler, the safe operation of guarantee steam turbine; For warm season mid-term, environment temperature reduces, but still above freezing, now waste heat amount also can be higher than the recoverable ability of absorption heat pump, and now recirculated water needs above tower cooler of part; In the high and cold phase, environment temperature is down to below freezing, and heat pump is recovery waste heat completely, but cooling tower basin still has water, needs to solve the antifreeze problem of cooling tower basin.
Therefore how to design that a kind of can meet under various operating modes can safe operation and can effectively reclaim residual neat recovering system and the operation control method thereof of recirculated water backwater, tool is of great significance.
[utility model content]
[technical problem that will solve]
The purpose of this utility model is to provide a kind of Circulated water system of thermal power plant.
[technical scheme]
The utility model is achieved through the following technical solutions.
For realizing described object, the technical solution of the utility model is to provide the solution that a kind of residual heat of electric power plant amount with more than two unit effectively reclaims.
The utility model relates to a kind of Circulated water system of thermal power plant, and this system is comprised of First unit and second unit.
First unit is comprised of open ice pipeline valve 2, the female tube valve 3 of the first recirculated water backwater of the first cooling tower 1, the first recirculated water water main pipe 5, the first water circulating pump 4, the first condenser 8, first, the first cooling tower 1 is connected with the first condenser 8 by the first water circulating pump 4, the first recirculated water water main pipe 5, the first condenser 8 is connected with the first cooling tower 1 with the female tube valve 3 of the first recirculated water backwater by the female pipe 6 of recirculated water backwater again, and the female pipe 6 of recirculated water backwater is also connected with the first cooling tower 1 by the pipeline 7 that opens ice, the pipeline valve 2 that opens ice simultaneously;
Second unit is comprised of open ice pipeline valve 12 and the female pipe of the second recirculated water backwater the first valve 13 of the second cooling tower 11, the second recirculated water water main pipe 15, the second water circulating pump 14, the second condenser 18, second, the second cooling tower 11 is connected with the second condenser 18 with the second recirculated water water main pipe 15 by the second water circulating pump 14, and the second condenser 18 is connected with the second cooling tower 11 by female pipe the first valve 13 of the second recirculated water backwater, the female pipe 16 of the second recirculated water backwater again; The female pipe 16 of the second recirculated water backwater after the female pipe of the second recirculated water backwater the first valve 13 is connected with the second cooling tower 11 by second pipeline 17, second pipeline valve 12 that opens ice that opens ice;
The first cooling tower 1 is connected with the second cooling tower 11 by cooling tower connecting pipe 19;
Recirculated water water main pipe 5 at the first water circulating pump 4 outlet sides is communicated with valve 9 and is connected in the second recirculated water water main pipe 15 of the second water circulating pump 14 outlet sides by water main pipe; The female pipe 6 of recirculated water backwater is communicated with valve 10 by the female pipe of backwater and is connected with the female pipe 16 of the second recirculated water backwater before the female pipe of the second recirculated water backwater the first valve 13;
The female pipe 6 of recirculated water backwater between the first condenser 8 and the female tube valve 3 of the first recirculated water backwater, by source heat pump heat water inlet valve 30, enter heat pump 22, after the heat source water outlet of heat pump 22, pipeline is divided into two-way, and the heat pump cycle water backwater direct-through valve 24 of leading up to is connected with the first cooling tower 1 with after heat pump cycle water backwater direct piping 28; The main booster 20 of the recirculated water of separately leading up to is divided into two-way again, and the overheated pump discharge valve 21 of a road device for cleaning pipeline is connected with the recirculated water water main pipe 5 between the first circulating pump and the first condenser 8; Another road device for cleaning pipeline is crossed the second heat pump outlet valve 23 and is connected with the female pipe 6 of the first recirculated water backwater of the female tube valve 3 of the first recirculated water backwater at the first condenser 8;
According to a kind of preferred embodiment of the present utility model, after the heat source water outlet of described heat pump 22, pipeline is divided into after two-way, and a road is connected with the first cooling tower 1; The main booster 20 of the recirculated water of separately leading up to is divided into two-way again, and the overheated pump discharge valve 21 of a road device for cleaning pipeline is connected with the recirculated water water main pipe 5 between the first circulating pump 4 and the first condenser 8; Another road device for cleaning pipeline is crossed the second heat pump outlet valve 23 and is connected with the female pipe 16 of the second recirculated water backwater of the female tube valve 13 of the second recirculated water backwater at the second condenser 18.
According to another kind of preferred embodiment of the present utility model, described the first water circulating pump 4 and the second water circulating pump 14 are comprised of one or more parallel connection of pumps.
According to another kind of preferred embodiment of the present utility model, the main booster 20 of described recirculated water is composed in parallel by one or more compression pump.
According to another kind of preferred embodiment of the present utility model, described water main pipe connection valve 9, the female pipe connection of backwater valve 10, heat pump outlet valve 21, the second heat pump outlet valve 23, heat pump cycle water backwater direct-through valve 24 are composed in parallel by one or more valves.
According to another kind of preferred embodiment of the present utility model, when this system is comprised of many units, wherein any two units can both connect according to above-mentioned Circulated water system of thermal power plant connected mode.
Concrete technical scheme of the present utility model be by unit condenser exit portion wherein or all recirculated water after recirculated water booster boosts, enter heat pump and be recovered waste heat, heat pump outlet side circulation moisture two-way: this unit condenser water main pipe is accessed on a road after valve, access point is two unit recirculated water water main pipe communication valve passage downstream; Another road is incorporated to this unit condenser recirculated water water return pipeline after control valve.The pond of cooling tower of two units is by the mutual UNICOM of pipeline.
In the utility model, when the main booster 20 of recirculated water moves, the state of the first circulating pump 4 can or be stopped using for operation.
The use step of described Circulated water system of thermal power plant is as follows:
It is heated that the recirculated water of First unit enters the water side space of the first condenser 8 along recirculated water water main pipe 5 from the first cooling tower 1 out boosts by the first water circulating pump 4, then along the female pipe 6 of recirculated water backwater, through the female tube valve 3 of recirculated water backwater, rise to the packing layer of the first cooling tower 1, its recirculated water is cooling by surrounding air in the process that naturally falls to entering tank, and then enter the first water circulating pump 4, so move in circles;
It is heated that the recirculated water of second unit enters the water side space of the second condenser 18 along recirculated water water main pipe 5 from the second cooling tower 11 out boosts by the second water circulating pump 14, then along the female pipe 16 of the second recirculated water backwater, through the female pipe of the second recirculated water backwater the first valve 13, rise to the packing layer of the second cooling tower 11, its recirculated water is cooling by surrounding air in the process that naturally falls to entering tank, and then enter the second water circulating pump 14, so move in circles;
In normal circumstances, water main pipe is communicated with valve 9,10 and closes, open ice pipeline valve 2 and second on the pipeline 17 that open ice at the second cooling tower 11 second opening ice on pipeline 7 at the first cooling tower 1 pipeline valve valve 12 that opens ice is closed, and the circulation of two units is separate operations.
The circulating water afterheat recovery scheme that the utility model adopts is to formulate for different operating modes, different bad borders temperature.
Operating mode one, environment temperature are higher, and waste heat amount is very large
While dropping into heat pump recovery circulating water afterheat, open source heat pump heat water inlet valve 30, heat pump cycle water backwater direct-through valve 24, close heat pump outlet valve 21, the second heat pump outlet valve 23 simultaneously; Allow and enter heat pump 22 at the first condenser 8 and the female recirculated water of managing the female pipe 6 of recirculated water backwater being communicated with between valve 10 of backwater, reclaim the waste heat of First unit recirculated water; Because waste heat amount is larger, heat pump can not reclaim completely, and because now environment temperature is higher, heat source water can not freeze again, can allow heat source water continue upper tower heat radiation; Therefore the heat source water of heat pump outlet enters the first cooling tower 1 after by heat pump cycle water backwater direct-through valve 24 and heat pump cycle water backwater direct piping 28, enters the first water circulating pump 4 again, then send into the first condenser 8 after cooling tower heat radiation, so moves in circles.Under this operating mode, the main booster 20 of recirculated water is stopped transport with the auxiliary booster 25 of recirculated water.
Operating mode two, environment temperature is higher, waste heat amount is larger
When waste heat amount is large and heat pump can not reclaim whole waste heat, it is cooling that now heat source water still needs the upper cooling tower of part, but can not all go up tower, to avoid heat source water temperature too low.Now open source heat pump heat water inlet valve 30, start the main booster 20 of recirculated water, open heat pump outlet valve 21, the second heat pump outlet valve 23; Aperture by adjusting heat pump outlet valve 21 and the second heat pump outlet valve 23 goes to regulate the heat source water flow that encircles the female pipe 6 of water backwater, the auxiliary booster 25 of ON cycle water and the auxiliary booster outlet valve 26 of recirculated water simultaneously, in order to supplement the thermal source water yield of going to the first cooling tower 1 by the second heat pump outlet valve 23.The first cooling tower 1 is connected with the second cooling tower 11 by cooling tower connecting pipe 19, to guarantee that the water of the first cooling tower 1 can go to the second cooling tower 11 and the second water circulating pump 14; Under this operating mode, the first water circulating pump 4 is stopped transport, heat pump cycle water backwater direct-through valve 24 is closed.
Operating mode three, environment temperature is lower, waste heat amount is less, needs to consider that tower basin is antifreeze
When waste heat amount less, during the whole circulating water afterheat of recyclable the first unit of heat pump 22, heat pump outlet valve 21 standard-sized sheets, the second heat pump outlet valve 23 complete shut-downs, the heat source water of heat pump outlet enters the first condenser 8 by heat pump outlet valve 21; The auxiliary booster outlet valve 26 of recirculated water is closed, the auxiliary booster 25 of recirculated water is stopped transport, and the female pipe of open ice pipeline valve 2 and backwater is communicated with valve 10 and opens a little, it is antifreeze that the recirculated water that is communicated with second unit of valve 10 by the female pipe of backwater both can enter the first cooling tower 1 pond by the pipeline valve 2 that opens ice, and can enter again source heat pump heat water system.
[beneficial effect]
The beneficial effects of the utility model: native system have simple in structure, flexible adjustment convenient, applicable to various environment temperatures and working condition and have the feature of economizing on energy and electricity function concurrently, thoroughly solved at present with the safe and stable operation of the Circulated water system of thermal power plant of function of recovering waste heat and cooling tower and the pond problem that freezes, by system optimized operation, regulate simultaneously, generated energy and amount of electricity saving that Power Plant increases are enough to overcome the power consumption increasing because heat pump is set, and the economy of whole power plant improves.
[accompanying drawing explanation]
Fig. 1 is a kind of Circulated water system of thermal power plant of the present utility model.
Fig. 2 is another kind of Circulated water system of thermal power plant of the present utility model.
1, the first cooling tower; 2, first pipeline valve that opens ice; 3, the female tube valve of the first recirculated water backwater; 4, the first water circulating pump; 5, the first recirculated water water main pipe; 6, the female pipe of recirculated water backwater; 7, first pipeline that opens ice; 8, the first condenser; 9, water main pipe is communicated with valve; 10, the female pipe of backwater is communicated with valve; 11, the second cooling tower; 12, second pipeline valve that opens ice; 13, the female pipe of the second recirculated water backwater the first valve; 14, the second water circulating pump; 15, the second recirculated water water main pipe; 16, the female pipe of the second recirculated water backwater; 17, second pipeline that opens ice; 18, the second condenser; 19, cooling tower connecting pipe; 20, the main booster of recirculated water; 21, heat pump outlet valve; 22, heat pump; 23, the second heat pump outlet valve; 24, heat pump cycle water backwater direct-through valve; 25, the auxiliary booster of recirculated water; 26, recirculated water auxiliary boost pump discharge valve; 28, recirculated water water main pipe valve; 29, heat pump cycle water out pipeline; 30, source heat pump heat water inlet valve.
[specific embodiment]
By following embodiment, can understand better spirit of the present utility model.
Embodiment 1: Circulated water system of thermal power plant
This Circulated water system of thermal power plant is comprised of First unit and second unit.
This Circulated water system of thermal power plant is composed as follows:
First unit is comprised of the first cooling tower 1, the first water circulating pump 4, the first condenser 8, the pipeline valve 2 that opens ice, the female tube valve 3 of recirculated water backwater, the first cooling tower 1 is connected with the first condenser 8 by the first water circulating pump 4, recirculated water water main pipe 5, and the first condenser 8 is connected with the first cooling tower 1 by the female pipe 6 of recirculated water backwater, the female tube valve 3 of recirculated water backwater again; The female pipe 6 of recirculated water backwater before the female tube valve 3 of recirculated water backwater is connected with the first cooling tower 1 by the pipeline 7 that opens ice, the pipeline valve 2 that opens ice;
Second unit is comprised of open ice pipeline valve 12, the female pipe of the second recirculated water backwater the first valve 13 of the second cooling tower 11, the second water circulating pump 14, the second condenser 18, second, the second cooling tower 11 is connected with the second condenser 18 with the second recirculated water water main pipe 15 by the second water circulating pump 14, and the second condenser 18 is connected with the second cooling tower 11 by female pipe the first valve 13 of the second recirculated water backwater, the female pipe 16 of the second recirculated water backwater again; The female pipe 16 of the second recirculated water backwater before the female pipe of the second recirculated water backwater the first valve 13 is connected with the second cooling tower 11 by second pipeline 17, second pipeline valve 12 that opens ice that opens ice;
The first cooling tower 1 is connected with the second cooling tower 11 by cooling tower connecting pipe 19;
Recirculated water water main pipe 5 at the first water circulating pump 4 outlet sides is communicated with valve 9 and is connected in the second recirculated water water main pipe 15 of the second water circulating pump 14 outlet sides by water main pipe; The female pipe 6 of recirculated water backwater is communicated with valve 10 by the female pipe of backwater and is connected with the female pipe 16 of the second recirculated water backwater;
The female pipe 6 of recirculated water backwater between the first condenser 8 and the female tube valve of the first recirculated water backwater (3), by source heat pump heat water inlet valve 30, enter heat pump 22, after the heat source water outlet of heat pump 22, pipeline is divided into two-way, and the heat pump cycle water backwater direct-through valve 24 of leading up to is connected with the first cooling tower 1 with after heat pump cycle water backwater direct piping 28; The main booster 20 of the recirculated water of separately leading up to is divided into two-way again, and the overheated pump discharge valve 21 of a road device for cleaning pipeline is connected with the recirculated water water main pipe 5 between the first circulating pump and the first condenser 8; Another road device for cleaning pipeline is crossed the second heat pump outlet valve 23 and is connected with the female pipe 6 of the first recirculated water backwater of the female tube valve 3 of the first recirculated water backwater at the first condenser 8.Auxiliary booster 25 entrances of recirculated water are connected in the second recirculated water water main pipe 15 between the second water circulating pump 14 and the second cooling tower 11, and outlet is connected between the main booster 20 of recirculated water and heat pump outlet valve 21 on heat pump cycle water out pipeline 29 by recirculated water auxiliary boost pump discharge valve 26.
Embodiment 2: Circulated water system of thermal power plant
This Circulated water system of thermal power plant is comprised of First unit and second unit.
This Circulated water system of thermal power plant is composed as follows:
First unit is comprised of the first cooling tower 1, the first water circulating pump 4, the first condenser 8, the pipeline valve 2 that opens ice, the female tube valve 3 of recirculated water backwater, the first cooling tower 1 is connected with the first condenser 8 by the first water circulating pump 4, recirculated water water main pipe 5, and the first condenser 8 is connected with the first cooling tower 1 by the female pipe 6 of recirculated water backwater, the female tube valve 3 of recirculated water backwater again; The female pipe 6 of recirculated water backwater before the female tube valve 3 of recirculated water backwater is connected with the first cooling tower 1 by the pipeline 7 that opens ice, the pipeline valve 2 that opens ice;
Second unit is comprised of open ice pipeline valve 12, the female pipe of the second recirculated water backwater the first valve 13 of the second cooling tower 11, the second water circulating pump 14, the second condenser 18, second, the second cooling tower 11 is connected with the second condenser 18 with the second recirculated water water main pipe 15 by the second water circulating pump 14, and the second condenser 18 is connected with the second cooling tower 11 by female pipe the first valve 13 of the second recirculated water backwater, the female pipe 16 of the second recirculated water backwater again; The female pipe 16 of the second recirculated water backwater before the female pipe of the second recirculated water backwater the first valve 13 is connected with the second cooling tower 11 by second pipeline 17, second pipeline valve 12 that opens ice that opens ice;
The first cooling tower 1 is connected with the second cooling tower 11 by cooling tower connecting pipe 19;
Recirculated water water main pipe 5 at the first water circulating pump 4 outlet sides is communicated with valve 9 and is connected in the second recirculated water water main pipe 15 of the second water circulating pump 14 outlet sides by water main pipe; The female pipe 6 of recirculated water backwater is communicated with valve 10 by the female pipe of backwater and is connected with the female pipe 16 of the second recirculated water backwater;
At the female pipe 6 of recirculated water backwater of the first condenser 8 and the female tube valve of the first recirculated water backwater (3), by source heat pump heat water inlet valve 30, enter heat pump 22, after the heat source water outlet of heat pump 22, pipeline is divided into two-way, and the heat pump cycle water backwater direct-through valve 24 of leading up to is connected with the first cooling tower 1 with after heat pump cycle water backwater direct piping 28; The main booster 20 of the recirculated water of separately leading up to is divided into two-way again, and the overheated pump discharge valve 21 of a road device for cleaning pipeline is connected with the recirculated water water main pipe 5 between the first circulating pump 4 and the first condenser 8; Another road device for cleaning pipeline is crossed the second heat pump outlet valve 23 and is connected with the female pipe 16 of the second recirculated water backwater of the female tube valve 13 of the second recirculated water backwater at the second condenser 18.Auxiliary booster 25 entrances of recirculated water are connected in the second recirculated water water main pipe between the second water circulating pump 14 and the second cooling tower 11 15, and outlet is connected between the main booster 20 of recirculated water and heat pump outlet valve 21 on heat pump cycle water out pipeline 29 by recirculated water auxiliary boost pump discharge valve 26.
Claims (8)
1. a Circulated water system of thermal power plant, this system is comprised of First unit and second unit, it is characterized in that this system is composed as follows:
First unit is by the first cooling tower (1), the first recirculated water water main pipe (5), the first water circulating pump (4), the first condenser (8), first pipeline valve (2) that opens ice, the female tube valve of the first recirculated water backwater (3) composition, the first cooling tower (1) is by the first water circulating pump (4), the first recirculated water water main pipe (5) is connected with the first condenser (8), the first condenser (8) is connected with the first cooling tower (1) with the female tube valve of the first recirculated water backwater (3) by the female pipe of recirculated water backwater (6) again, the female pipe of recirculated water backwater (6) is also by the pipeline that opens ice (7) simultaneously, the pipeline valve (2) that opens ice is connected with the first cooling tower (1),
Second unit is by the second cooling tower (11), the second recirculated water water main pipe (15), the second water circulating pump (14), the second condenser (18), the second open ice pipeline valve (12) and second recirculated water backwater female pipe the first valve (13) composition, the second cooling tower (11) is connected with the second condenser (18) with the second recirculated water water main pipe (15) by the second water circulating pump (14), the second condenser (18) is again by the second recirculated water backwater female pipe the first valve (13), the female pipe of the second recirculated water backwater (16) is connected with the second cooling tower (11), the female pipe of the second recirculated water backwater (16) after second recirculated water backwater female pipe the first valve (13) is connected with the second cooling tower (11) by second pipeline (17), second pipeline valve (12) that opens ice that opens ice,
The first cooling tower (1) is connected with the second cooling tower (11) by cooling tower connecting pipe (19);
In the recirculated water water main pipe (5) of the first water circulating pump (4) outlet side, by water main pipe, being communicated with valve (9) is connected with the second recirculated water water main pipe (15) at the second water circulating pump (14) outlet side; The female pipe of recirculated water backwater (6) is communicated with valve (10) and is connected at the front female pipe of the second recirculated water backwater (16) of the second recirculated water backwater female pipe the first valve (13) by the female pipe of backwater;
The female pipe of recirculated water backwater (6) between the first condenser (8) and the female tube valve of the first recirculated water backwater (3), by source heat pump heat water inlet valve (30), enter heat pump (22), after the heat source water outlet of heat pump (22), pipeline is divided into two-way, and the heat pump cycle water backwater direct-through valve (24) of leading up to is connected with the first cooling tower (1) with after heat pump cycle water backwater direct piping (28); The main booster of recirculated water (20) of separately leading up to is divided into two-way again, and an overheated pump discharge valve of road device for cleaning pipeline (21) is connected with the recirculated water water main pipe (5) between the first circulating pump (4) and the first condenser (8); Another road device for cleaning pipeline is crossed the second heat pump outlet valve (23) and is connected with the female pipe of the first recirculated water backwater (6) of the female tube valve of the first recirculated water backwater (3) at the first condenser (8);
It is upper that the auxiliary booster of recirculated water (25) entrance is connected to the second recirculated water water main pipe (15) between the second water circulating pump (14) and the second cooling tower (11), and outlet is connected between the main booster of recirculated water (20) and heat pump outlet valve (21) on heat pump cycle water out pipeline (29) by recirculated water auxiliary boost pump discharge valve (26).
2. Circulated water system of thermal power plant according to claim 1, is characterized in that the rear pipeline of heat source water outlet of heat pump (22) is divided into after two-way, and a road is connected with the first cooling tower (1); The main booster of recirculated water (20) of separately leading up to is divided into two-way again, and an overheated pump discharge valve of road device for cleaning pipeline (21) is connected with the recirculated water water main pipe (5) between the first circulating pump (4) and the first condenser (8); Another road device for cleaning pipeline is crossed the second heat pump outlet valve (23) and is connected with the female pipe of the second recirculated water backwater (16) of the female tube valve of the second recirculated water backwater (13) at the second condenser (18).
3. Circulated water system of thermal power plant according to claim 1 and 2, is characterized in that the auxiliary booster of described recirculated water (25) is comprised of 1～4 parallel connection of pumps.
4. Circulated water system of thermal power plant according to claim 1, is characterized in that what described the first water circulating pump (4) and the second water circulating pump (14) were comprised of one or more parallel connection of pumps respectively.
5. Circulated water system of thermal power plant according to claim 1 and 2, is characterized in that the described main booster of recirculated water (20) is composed in parallel by one or more compression pump.
6. Circulated water system of thermal power plant according to claim 1 and 2, is characterized in that described water main pipe connection valve (9), the female pipe connection of backwater valve (10), heat pump outlet valve (21), the second heat pump outlet valve (23), heat pump cycle water backwater direct-through valve (24) are composed in parallel by one or more valves respectively.
7. Circulated water system of thermal power plant according to claim 1 and 2, while it is characterized in that this system is comprised of many units, all connects according to Circulated water system of thermal power plant claimed in claim 1 between any two units.
8. Circulated water system of thermal power plant according to claim 1 and 2, is characterized in that when the main booster of recirculated water (20) moves, and the state of the first circulating pump (4) is operation or inactive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740806.5U CN203549982U (en) | 2013-11-21 | 2013-11-21 | Circulating water system of thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740806.5U CN203549982U (en) | 2013-11-21 | 2013-11-21 | Circulating water system of thermal power plant |
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| CN203549982U true CN203549982U (en) | 2014-04-16 |
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| CN201320740806.5U Expired - Lifetime CN203549982U (en) | 2013-11-21 | 2013-11-21 | Circulating water system of thermal power plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020773A (en) * | 2015-07-01 | 2015-11-04 | 国网天津市电力公司 | Online monitoring method for performance coefficients of warming type heat pump for recycling residual heat of circulating water |
| CN105806012A (en) * | 2014-12-31 | 2016-07-27 | 国家电网公司 | Circulating cooling water system for gas-fired thermal power plant and start and stop control method of circulating cooling water system |
| CN113883748A (en) * | 2021-11-11 | 2022-01-04 | 国能龙源蓝天节能技术有限公司上海分公司 | Pipeline arrangement system for extracting circulating water waste heat of power plant |
-
2013
- 2013-11-21 CN CN201320740806.5U patent/CN203549982U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806012A (en) * | 2014-12-31 | 2016-07-27 | 国家电网公司 | Circulating cooling water system for gas-fired thermal power plant and start and stop control method of circulating cooling water system |
| CN105806012B (en) * | 2014-12-31 | 2018-09-07 | 国家电网公司 | Gas power station recirculating cooling water system and its start-up and shut-down control method |
| CN105020773A (en) * | 2015-07-01 | 2015-11-04 | 国网天津市电力公司 | Online monitoring method for performance coefficients of warming type heat pump for recycling residual heat of circulating water |
| CN113883748A (en) * | 2021-11-11 | 2022-01-04 | 国能龙源蓝天节能技术有限公司上海分公司 | Pipeline arrangement system for extracting circulating water waste heat of power plant |
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