CN206889029U - A kind of thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy - Google Patents

A kind of thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy Download PDF

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Publication number
CN206889029U
CN206889029U CN201720775267.7U CN201720775267U CN206889029U CN 206889029 U CN206889029 U CN 206889029U CN 201720775267 U CN201720775267 U CN 201720775267U CN 206889029 U CN206889029 U CN 206889029U
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China
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heat
outlet
cylinder
supply network
electric boiler
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CN201720775267.7U
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居文平
江浩
黄嘉驷
宋文希
雒青
刘永林
谢天
范庆伟
常东锋
王伟
温婷
杨荣祖
马汀山
谷伟伟
王耀文
高登攀
高庆
程东涛
廖高良
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Xian Xire Energy Saving Technology Co Ltd
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Xian Xire Energy Saving Technology Co Ltd
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Abstract

The utility model discloses a kind of thermoelectricity of no cold source energy to decouple fired power generating unit depth peak regulation system, including intermediate pressure cylinder, low pressure (LP) cylinder, heat exchangers for district heating, heat supply network recirculated water return pipe, heat storing type electric boiler, heat supply network recirculated water water return pipeline, generator and power network;The steam (vapor) outlet of intermediate pressure cylinder is connected with the steam side entrance of the steam inlet of low pressure (LP) cylinder and heat exchangers for district heating, the outlet of heat supply network recirculated water return pipe is connected with the entrance of the water side entrance of heat exchangers for district heating and heat storing type electric boiler, the outlet of heat storing type electric boiler and the water side outlet of heat exchangers for district heating are connected with heat supply network recirculated water water return pipeline, intermediate pressure cylinder, low pressure (LP) cylinder and generator coaxle arrangement, the output end of generator is connected with heat storing type electric boiler and power network, and the system disclosure satisfy that stable heating demand and peak regulation demand.

Description

A kind of thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy
Technical field
The utility model belongs to thermal power generating technology field, and the thermoelectricity decoupling fired power generating unit for being related to a kind of no cold source energy is deep Spend peak regulation system.
Background technology
To coordinate the development need of renewable energy power generation online, and the increasingly increase of peak-valley difference, Thermal generation unit Participating in the number of peak regulation and the requirement to its quality greatly improves, grid requirements power plant lifts the peak modulation capacity in heat supply season, when The mode of operation and the control of preceding Thermal generation unit has been difficult meet demand.
In heat supply season, steam power plant carries out the method for operation of electricity determining by heat, because resident's heat supply is related to common people's people's livelihood Major issue, it is necessary to ensured first, so, under the method for operation of traditional electricity determining by heat, the generation load of power plant can not be random Increase and decrease.Therefore, exist between stable heat demand and frequently peak regulation demand and necessarily conflict.
Utility model content
A kind of the shortcomings that the purpose of this utility model is to overcome above-mentioned prior art, there is provided thermoelectricity of no cold source energy Fired power generating unit depth peak regulation system is decoupled, the system disclosure satisfy that stable heating demand and peak regulation demand.
To reach above-mentioned purpose, the thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy described in the utility model System includes intermediate pressure cylinder, low pressure (LP) cylinder, heat exchangers for district heating, heat supply network recirculated water return pipe, heat storing type electric boiler, heat supply network recirculated water return pipe Road, generator and power network;
The steam (vapor) outlet of intermediate pressure cylinder is connected with the steam side entrance of the steam inlet of low pressure (LP) cylinder and heat exchangers for district heating, heat supply network The outlet of recirculated water return pipe is connected with the water side entrance of heat exchangers for district heating and the entrance of heat storing type electric boiler, heat storage type grill pan The outlet of stove and the water side outlet of heat exchangers for district heating are connected with heat supply network recirculated water water return pipeline, intermediate pressure cylinder, low pressure (LP) cylinder and generating Machine is coaxially arranged, and the output end of generator is connected with heat storing type electric boiler and power network.
The steam (vapor) outlet of intermediate pressure cylinder is connected by the first valve with the steam inlet of low pressure (LP) cylinder.
Heat supply network recirculated water return pipe is connected through the second valve with the water side entrance of heat exchangers for district heating.
The steam (vapor) outlet of intermediate pressure cylinder is connected through the 3rd valve with the steam side entrance of heat exchangers for district heating.
The valve of outlet the 4th of heat storing type electric boiler is connected with heat supply network recirculated water water return pipeline.
Heat supply network recirculated water return pipe is connected through the 5th valve with the entrance of heat storing type electric boiler.
The hydrophobic outlet of heat exchangers for district heating is connected with oxygen-eliminating device or condenser.
The utility model has the advantages that:
The thermoelectricity of no cold source energy described in the utility model decouples fired power generating unit depth peak regulation system in specific works, On the basis of unit back pressuce machine mode is run, when heating demand demand continues increase, heat storing type electric boiler puts into operation, heat storage type Electric boiler output is adjustable, wherein, the peak power of heat storing type electric boiler is identical with the generation load of generator, realizes that electricity is above freezing Net, so as to farthest realize energy-conservation, and ensure heat capacity, electricity is surfed the Net less or even the depth of net above freezing is adjusted so as to have Peak energy power.In unit back pressuce machine mode is run, on the premise of no cold source energy, heat storing type electric boiler can be placed in heat user side, It is suitable with the original system energy utilization degree for being placed in Power Plant Side, so as to which the heat supply network efficiently reduced between steam power plant and user side follows Ring water-carrying capacity, the investment of heat-net-pipeline capacity-increasing transformation is reduced, while reduce the power consumption of pumps for hot water supply net.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1 it is intermediate pressure cylinder, 2 be low pressure (LP) cylinder, 3 be generator, 4 be power network, 5 be heat exchangers for district heating, 6 is heat storing type electric Boiler, 7 be the first valve, 8 be the second valve, 9 be the 3rd valve, 10 be the 4th valve, 11 be the 5th valve.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings:
With reference to figure 1, the thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy described in the utility model includes Intermediate pressure cylinder 1, low pressure (LP) cylinder 2, heat exchangers for district heating 5, heat supply network recirculated water return pipe, heat storing type electric boiler 6, heat supply network recirculated water return pipe Road, generator 3 and power network 4;The steam (vapor) outlet of intermediate pressure cylinder 1 enters with the steam inlet of low pressure (LP) cylinder 2 and the steam side of heat exchangers for district heating 5 Mouth is connected, the outlet of heat supply network recirculated water return pipe and the water side entrance of heat exchangers for district heating 5 and the entrance phase of heat storing type electric boiler 6 Connection, the outlet of heat storing type electric boiler 6 and the water side outlet of heat exchangers for district heating 5 are connected with heat supply network recirculated water water return pipeline, in Cylinder pressure 1, low pressure (LP) cylinder 2 and generator 3 are coaxially arranged, and the output end of generator 3 is connected with heat storing type electric boiler 6 and power network 4;Heat The hydrophobic outlet of net heater 5 is connected with oxygen-eliminating device or condenser.
The steam (vapor) outlet of intermediate pressure cylinder 1 is connected by the first valve 7 with the steam inlet of low pressure (LP) cylinder 2;Heat supply network recirculated water returns Water pipe is connected through the second valve 8 with the water side entrance of heat exchangers for district heating 5;The steam (vapor) outlet of intermediate pressure cylinder 1 is through the 3rd valve 9 and heat The steam side entrance of net heater 5 is connected;The valve 10 of outlet the 4th and heat supply network recirculated water return pipe of heat storing type electric boiler 6 Road is connected;Heat supply network recirculated water return pipe is connected through the 5th valve 11 with the entrance of heat storing type electric boiler 6.
Specific work process of the present utility model is:
When the heating demand demand of system, which is less than, presets minimum heating demand demand, intermediate pressure cylinder 1 and low pressure (LP) cylinder 2 are normally transported During row, heat storing type electric boiler 6 is stopped, and the first valve 7, the second valve 8 and the 3rd valve 9 are in opening, the 4th valve The valve 11 of door 10 and the 5th is closed, and intermediate pressure cylinder 1 and low pressure (LP) cylinder 2 drive generator 3 to work, the electricity that generator 3 exports It is delivered in power network 4;
Born when the heating demand demand of system is more than or equal to preset minimum heating demand demand and be less than default medium heat supply During lotus demand, then the aperture of the first valve 7 is gradually reduced, and gradually increase the aperture of the 3rd valve 9, reduce doing for low pressure (LP) cylinder 2 Work(;
Born when the heating demand demand of system is more than or equal to preset medium heating demand demand and be less than default maximum heat supply During lotus demand, then the first valve 7 is closed, and by the aperture regulation of the 3rd valve 9 to maximum, stop doing power low pressure (LP) cylinder 2, generate electricity Machine 3 is run in a manner of back pressure machine, and when generator 3 is run in a manner of back pressure machine, the heating demand demand of system is more than or equal to During default highest heating demand demand, then gradually increase the aperture of the 4th valve 10 and the 5th valve 11, driven by generator 3 Heat storing type electric boiler 6 works, and the peak power of heat storing type electric boiler 6 is equal to the generation load of generator 3.

Claims (7)

1. a kind of no cold source energy thermoelectricity decoupling fired power generating unit depth peak regulation system, it is characterised in that including intermediate pressure cylinder (1), Low pressure (LP) cylinder (2), heat exchangers for district heating (5), heat supply network recirculated water return pipe, heat storing type electric boiler (6), heat supply network recirculated water water return pipeline, Generator (3) and power network (4);
The steam (vapor) outlet of intermediate pressure cylinder (1) is connected with the steam inlet of low pressure (LP) cylinder (2) and the steam side entrance of heat exchangers for district heating (5) Logical, the outlet of heat supply network recirculated water return pipe is connected with the entrance of the water side entrance of heat exchangers for district heating (5) and heat storing type electric boiler (6) Logical, the outlet of heat storing type electric boiler (6) and the water side outlet of heat exchangers for district heating (5) are connected with heat supply network recirculated water water return pipeline, Intermediate pressure cylinder (1), low pressure (LP) cylinder (2) and generator (3) are coaxially arranged, and the output end of generator (3) is connected with power network (4), heat accumulation The input of formula electric boiler (6) is connected with generator (3) output end and power network (4) output end.
2. the thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy according to claim 1, it is characterised in that The steam (vapor) outlet of intermediate pressure cylinder (1) is connected by the first valve (7) with the steam inlet of low pressure (LP) cylinder (2).
3. the thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy according to claim 2, it is characterised in that Heat supply network recirculated water return pipe is connected through the second valve (8) with the water side entrance of heat exchangers for district heating (5).
4. the thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy according to claim 3, it is characterised in that The steam (vapor) outlet of intermediate pressure cylinder (1) is connected through the 3rd valve (9) with the steam side entrance of heat exchangers for district heating (5).
5. the thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy according to claim 4, it is characterised in that The valve (10) of outlet the 4th of heat storing type electric boiler (6) is connected with heat supply network recirculated water water return pipeline.
6. the thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy according to claim 5, it is characterised in that Heat supply network recirculated water return pipe is connected through the 5th valve (11) with the entrance of heat storing type electric boiler (6).
7. the thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy according to claim 6, it is characterised in that The hydrophobic outlet of heat exchangers for district heating (5) is connected with oxygen-eliminating device or condenser.
CN201720775267.7U 2017-06-29 2017-06-29 A kind of thermoelectricity decoupling fired power generating unit depth peak regulation system of no cold source energy Active CN206889029U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107143390A (en) * 2017-06-29 2017-09-08 西安西热节能技术有限公司 A kind of thermoelectricity decoupling fired power generating unit depth peak regulation system and method without cold source energy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107143390A (en) * 2017-06-29 2017-09-08 西安西热节能技术有限公司 A kind of thermoelectricity decoupling fired power generating unit depth peak regulation system and method without cold source energy

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