CN206478721U - A kind of Circulating Cooling Water of Power Plant condensation waste heat utilizes system - Google Patents

A kind of Circulating Cooling Water of Power Plant condensation waste heat utilizes system Download PDF

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Publication number
CN206478721U
CN206478721U CN201720043521.4U CN201720043521U CN206478721U CN 206478721 U CN206478721 U CN 206478721U CN 201720043521 U CN201720043521 U CN 201720043521U CN 206478721 U CN206478721 U CN 206478721U
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water
pipe
heat
branch
outlet
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CN201720043521.4U
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马文涛
聂琨
李永超
王和春
苑飞
朱爱萍
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China Sinogy Electric Engineering Co Ltd
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China Sinogy Electric Engineering Co Ltd
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Abstract

The utility model is related to steam power plant's technical field of heat exchange, and specifically a kind of Circulating Cooling Water of Power Plant condensation waste heat utilizes system, it is characterised in that:Also include absorption heat pump, treat heating plant;The import of recirculated water return branch is connected on recirculated water return pipe, the outlet of recirculated water return branch is connected on the recirculated water feed pipe between the outlet of machine power tower and water circulating pump;Some branch pipes are connected in parallel in recirculated water return branch, each branch pipe is provided with absorption heat pump;The branch road of the steam inlet connection steam power plant jet chimney of described absorption heat pump;The branch road of the solidifying waterpipe of solidifying water out connection of described absorption heat pump;Heat exchange outlet pipe and heat exchange water inlet pipe are additionally provided with described absorption heat pump, heat exchange outlet pipe is also connected with treating heating plant.The utility model compared with prior art, increases the heat capacity of steam power plant, improves heat supply benefit and energy utilization rate.

Description

A kind of Circulating Cooling Water of Power Plant condensation waste heat utilizes system
Technical field
The utility model is related to steam power plant's technical field of heat exchange, and specifically a kind of Circulating Cooling Water of Power Plant condensation is useless Heat utilization system.
Background technology
The indirect cooling circulating water system of steam power plant, conventional solution is cooled down using cooling tower.In steam turbine row Gas is after circulating water condensing, and the elevated recirculated water of temperature is delivered in cooling tower through water circulating pump, in cooling tower more than recirculated water Heat is directly slatterned.The system has drift ice phenomenon, operation noise is big, anti-freeze effect is poor, upper circulation water to a certain degree is suitable It is contaminated.
Fig. 1 is the traditional recirculating cooling water system schematic diagram of steam power plant.Condenser is that turbine discharge is condensed into water A kind of heat exchanger.The condenser of steam power plant typically uses air cooling or water cooling, when using water-cooling pattern, there are about 40% heat with Recirculated water directly to be wasted in cooling tower, energy repeat usage is relatively low.The policy of energy-saving and emission-reduction is widelyd popularize in country Under, the condensation waste heat of circulating-water in thermal power plant should effectively be utilized.
, it is necessary to which fresh demineralized water is heated under relevant temperature in oxygen-eliminating device before boiler feedwater enters boiler, this Process need to consume substantial amounts of extracted steam from turbine.
In addition, the development with city rapidly, the increasingly change of the density of population is big, the thermal source of concentrated supply of heating in the city occurs seriously It is not enough.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, will be needed in the indirect cooling circulating water system of steam power plant The heat energy to be cooled down is applied to the device of heat supply, so as to reduce the heat energy that heating plant is additionally consumed, makes the energy abundant Utilize, be not wasted.
Above-mentioned purpose is realized, a kind of Circulating Cooling Water of Power Plant condensation waste heat is designed and utilizes system, including machine power tower, condensing Supplied water using recirculated water device, filter, recirculated water feed pipe, recirculated water return pipe, water circulating pump, the outlet of described machine power tower Pipe is sequentially connected the water inlet of water circulating pump, filter, condenser, and the delivery port of condenser connects machine using recirculated water return pipe The import of power tower, it is characterised in that:Also include absorption heat pump, treat heating plant;Recirculated water is connected on recirculated water return pipe The import of return branch, the outlet of recirculated water return branch is connected to the circulation between the outlet of machine power tower and water circulating pump On water feed pipe;Some branch pipes are connected in parallel in recirculated water return branch, each branch pipe is provided with absorption heat pump;Described suction The branch road of the steam inlet connection steam power plant jet chimney of receipts formula heat pump;The solidifying water of solidifying water out connection of described absorption heat pump The branch road of pipeline;Heat exchange outlet pipe and heat exchange water inlet pipe are additionally provided with described absorption heat pump, heat exchange outlet pipe is also connected with treating Heating plant;On the recirculated water return pipe of the inlet side of described machine power tower, on the recirculated water feed pipe of machine power tower outlet side, inhale Electric butterfly valve is respectively equipped with the branch pipe at receipts formula heat pump two ends.
Described treats that heating plant includes civil heating equipment, heat-exchange unit;Set absorption heat pump on a piece branch pipe Heat exchange outlet pipe connect the entrance point of the heat-exchange unit, the port of export of heat-exchange unit connects the import of civil heating equipment The heat exchange water inlet pipe of set absorption heat pump on end, a piece branch pipe of heating water return outlet connection for civil heating equipment;It is described The steam inlet end of heat-exchange unit be also connected with another branch road of steam power plant's jet chimney, the solidifying water out of described heat-exchange unit It is also connected with another branch road of solidifying waterpipe.
Described treats that heating plant includes oxygen-eliminating device;The heat exchange outlet pipe of set absorption heat pump connects on another branch pipe Connect the water inlet of oxygen-eliminating device;The heat exchange water inlet pipe connection boiler low-temperature make-up water of set absorption heat pump on another branch pipe.
Described machine power tower is frequency conversion type machine power tower.
The utility model compared with prior art, using the steam of steam power plant as driving heat source, in the work of absorption heat pump Under, to greatest extent using the condensation waste heat in recirculated water backwater, condensation waste heat, which is passed to, needs the device of heat, increases The heat capacity of steam power plant, improves heat supply benefit and energy utilization rate;
Absorption heat pump is in the presence of steam power plant's steam, and the low-temperature heat quantity of recirculated water, which is passed to, to be needed to lift heat Medium;
It under conditions of heating source is not increased newly, can effectively alleviate the growing heat demand in city, drop simultaneously Low burn the consumption of coal, reduces the discharge of the pollutants such as carbon dioxide.
Brief description of the drawings
Fig. 1 is original Circulating Cooling Water of Power Plant system.
Fig. 2 is connection diagram of the utility model in embodiment.
Embodiment
In conjunction with accompanying drawing, the utility model is further described.
Embodiment 1
Referring to Fig. 2, a kind of Circulating Cooling Water of Power Plant condensation waste heat utilizes system, including machine power tower 8, condenser 1, filtering Device 7, recirculated water feed pipe 10, recirculated water return pipe 11, water circulating pump 12, the outlet of described machine power tower 8 are supplied using recirculated water Water pipe 10 is sequentially connected water circulating pump 12, filter 7, the water inlet of condenser 1, and the delivery port of condenser 1 is returned using recirculated water The import of the connection machine power of water pipe 11 tower 8, it is characterised in that:
Also include absorption heat pump 2, treat heating plant;
The import of recirculated water return branch 9, the outlet connection of recirculated water return branch 9 are connected on recirculated water return pipe 11 On recirculated water feed pipe 10 between the outlet positioned at machine power tower 8 and water circulating pump 12;It is in parallel in recirculated water return branch 9 to connect Some branch pipes are connect, each branch pipe is provided with absorption heat pump 2;
The branch road of the steam inlet connection steam power plant jet chimney of described absorption heat pump 2;Described absorption heat pump 2 The solidifying waterpipe of solidifying water out connection branch road;
Heat exchange outlet pipe and heat exchange water inlet pipe are additionally provided with described absorption heat pump 2, heat exchange outlet pipe is also connected with waiting to supply Thermal;
On the recirculated water return pipe 11 of the inlet side of described machine power tower 8, the recirculated water feed pipe 10 of the outlet side of machine power tower 8 Electric butterfly valve 6 is respectively equipped with the upper, branch pipe at the two ends of absorption heat pump 2.
Further, it is described to treat that heating plant includes civil heating equipment 4, heat-exchange unit 5;Set by a piece branch pipe The heat exchange outlet pipe of absorption heat pump 2 connects the entrance point of the heat-exchange unit 5, and the port of export connection of heat-exchange unit 5 is civilian to adopt Set absorption heat pump 2 on the entrance point of heating equipment 4, a piece branch pipe of heating water return outlet connection for civil heating equipment 4 Exchange heat water inlet pipe;The steam inlet end of described heat-exchange unit 5 is also connected with another branch road of steam power plant's jet chimney, and described changes The solidifying water out of heat engine group 5 is also connected with another branch road of solidifying waterpipe.Absorption heat pump is used as driving in power plant steam in this example In the presence of thermal source, the low-temperature heat quantity in the recirculated water backwater that condenser 1 is come out passes to the heating in civil heating equipment 4 Backwater, the heating water return after being heated, into heat-exchange unit 5, when Winter heat supply workload demand is larger, is changed as heating water outlet Heat engine group 5 is re-supplied to civil heating equipment 4 again by the steam of steam power plant by after heating water outlet further heating, civilian to adopt The heating water return that heating equipment 4 comes out is returned again to after absorption heat pump 2 is heated for recycling.And the circulation that temperature is reduced after exchanging heat Water backwater is evacuated to condenser 1 through water circulating pump 12 by recirculated water return branch 9 and re-starts heat exchange.When no longer need heat exchange When, the electric butterfly valve 6 that can be closed on the two ends branch pipe of absorption heat pump 2.
Further, it is described to treat that heating plant includes oxygen-eliminating device 3;Set absorption heat pump 2 on another branch pipe The outlet pipe that exchanges heat connects the water inlet of oxygen-eliminating device 3;The heat exchange water inlet pipe connection pot of set absorption heat pump 2 on another branch pipe Stove low temperature make-up water.The low-temperature heat quantity of recirculated water backwater is passed to by boiler low-temperature make-up water by absorption heat pump 2 in this example In, the recirculated water backwater that temperature is reduced after heat exchange is evacuated to condenser 1 through water circulating pump 12 by recirculated water return branch 9 and entered again Row heat exchange.Boiler high temperature make-up water after being heated, which enters in oxygen-eliminating device 3, carries out deoxygenation, so saves to the water in oxygen-eliminating device This part energy heated.
In the system, absorption heat pump is in the presence of steam is as driving source warm, after can condenser 1 be exchanged heat out 38 degree of recirculated water backwater in heat transfer in heating water return or boiler low-temperature make-up water.In absorption heat pump, heat Exchange is indirect exchange, and the heat transferring medium such as steam, recirculated water backwater, heating water return or low temperature make-up water is separate 's.
Further, described machine power tower 8 is frequency conversion type machine power tower.
In the utility model, using the electric butterfly valve and frequency conversion type machine power tower for stopping function with, pass through required thermic load To adjust the recirculated water circling water flow rate into machine power tower, machine power tower load and thermal pollution can be effectively reduced, also reduces and follows Ring water backwater evaporates in machine power tower, the loss of wind, realizes the saving of the energy and efficiently utilizes.

Claims (4)

1. a kind of Circulating Cooling Water of Power Plant condensation waste heat utilizes system, including machine power tower (8), condenser (1), filter (7), Recirculated water feed pipe (10), recirculated water return pipe (11), water circulating pump (12), the outlet of described machine power tower (8) use circulation Water feed pipe (10) is sequentially connected water circulating pump (12), filter (7), the water inlet of condenser (1), the water outlet of condenser (1) Mouth connects the import of machine power tower (8) using recirculated water return pipe (11), it is characterised in that:
Also include absorption heat pump (2), treat heating plant;
The import of recirculated water return branch (9) is connected on recirculated water return pipe (11), the outlet of recirculated water return branch (9) connects It is connected on the recirculated water feed pipe (10) between the outlet of machine power tower (8) and water circulating pump (12);Recirculated water return branch (9) some branch pipes are connected in parallel on, each branch pipe is provided with absorption heat pump (2);
The branch road of the steam inlet connection steam power plant jet chimney of described absorption heat pump (2);Described absorption heat pump (2) The solidifying waterpipe of solidifying water out connection branch road;
Heat exchange outlet pipe and heat exchange water inlet pipe are additionally provided with described absorption heat pump (2), heat exchange outlet pipe is also connected with treating heat supply Device;
On the recirculated water return pipe (11) of the inlet side of described machine power tower (8), the recirculated water feed pipe of machine power tower (8) outlet side (10) electric butterfly valve (6) is respectively equipped with, on the branch pipe at absorption heat pump (2) two ends.
2. a kind of Circulating Cooling Water of Power Plant condensation waste heat as claimed in claim 1 utilizes system, it is characterised in that:
Described treats that heating plant includes civil heating equipment (4), heat-exchange unit (5);
The heat exchange outlet pipe of set absorption heat pump (2) connects the entrance point of the heat-exchange unit (5), heat exchange on a piece branch pipe The entrance point of the port of export connection civil heating equipment (4) of unit (5), the heating water return outlet connection of civil heating equipment (4) The heat exchange water inlet pipe of set absorption heat pump (2) on a piece branch pipe;
The steam inlet end of described heat-exchange unit (5) is also connected with another branch road of steam power plant's jet chimney, described heat exchanger The solidifying water out of group (5) is also connected with another branch road of solidifying waterpipe.
3. a kind of Circulating Cooling Water of Power Plant condensation waste heat as claimed in claim 1 or 2 utilizes system, it is characterised in that:
Described treats that heating plant includes oxygen-eliminating device (3);
The water inlet of the heat exchange outlet pipe connection oxygen-eliminating device (3) of set absorption heat pump (2) on another branch pipe;
The heat exchange water inlet pipe connection boiler low-temperature make-up water of set absorption heat pump (2) on another branch pipe.
4. a kind of Circulating Cooling Water of Power Plant condensation waste heat as claimed in claim 1 utilizes system, it is characterised in that:Described Machine power tower (8) is frequency conversion type machine power tower.
CN201720043521.4U 2017-01-15 2017-01-15 A kind of Circulating Cooling Water of Power Plant condensation waste heat utilizes system Active CN206478721U (en)

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CN201720043521.4U CN206478721U (en) 2017-01-15 2017-01-15 A kind of Circulating Cooling Water of Power Plant condensation waste heat utilizes system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720043521.4U CN206478721U (en) 2017-01-15 2017-01-15 A kind of Circulating Cooling Water of Power Plant condensation waste heat utilizes system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108050578A (en) * 2017-12-11 2018-05-18 山西省工业设备安装集团有限公司 A kind of heating unit based on relaying energy source station heat transfer technology

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108050578A (en) * 2017-12-11 2018-05-18 山西省工业设备安装集团有限公司 A kind of heating unit based on relaying energy source station heat transfer technology
CN108050578B (en) * 2017-12-11 2019-02-22 山西省工业设备安装集团有限公司 A kind of heating device based on relaying energy source station heat transfer technology

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