CN209688799U - A kind of system that electric heat storage boiler cooperation Direct Air-cooled Unit participates in depth peak regulation - Google Patents

A kind of system that electric heat storage boiler cooperation Direct Air-cooled Unit participates in depth peak regulation Download PDF

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Publication number
CN209688799U
CN209688799U CN201921402371.7U CN201921402371U CN209688799U CN 209688799 U CN209688799 U CN 209688799U CN 201921402371 U CN201921402371 U CN 201921402371U CN 209688799 U CN209688799 U CN 209688799U
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boiler
heat storage
direct air
output end
peak regulation
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CN201921402371.7U
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姜川
曾晓东
马丽平
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Xinjiang Zhonghaimingda Energy Co Ltd
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Xinjiang Zhonghaimingda Energy Co Ltd
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Abstract

It is disclosed by the utility model to belong to peak regulation system technical field, specially a kind of system that electric heat storage boiler cooperation Direct Air-cooled Unit participates in depth peak regulation, including boiler, steam turbine, direct air cooling system and heat storage boiler, the output end of the boiler is fixedly connected with the steam turbine, the system that this kind of electric heat storage boiler cooperation Direct Air-cooled Unit participates in depth peak regulation, pass through the united application of accessory, using electric heat storage boiler, heat the condensed water of direct air cooling system, it is arranged in condensate system and bypasses, and the heat exchanger with the heat exchange of electric heat storage boiler one cycle water, in the peak regulation period, heat storage boiler starting, the cooling unit condensed water of air cooling system is heated by heat exchanger, instead of the effect of low-pressure heater all or part of in original system, reduce the online generated output of power plant, this system can not only realize that the peak regulation period reduces thermal motor The online load of group promotes clean energy resource consumption, can also reduce steam consumption, reduces power plant's coal consumption total amount.

Description

A kind of system that electric heat storage boiler cooperation Direct Air-cooled Unit participates in depth peak regulation
Technical field
The utility model relates to peak regulation system technical field, specially a kind of electric heat storage boiler cooperation Direct Air-cooled Unit ginseng With the system of depth peak regulation.
Background technique
Due to power load be it is non-uniform, in peak of power consumption, power grid often excess load needs to be dropped at this time normal For generating set other than operation with meet demand, these generating sets claim regulating units, and the requirement of regulating units is starting and stops Only convenient and efficient, synchronous adjustment when grid-connected is easy.General regulating units have gas turbine unit and pump-storage generator etc..
And electric heat storage boiler is to encourage according to power department in low-valley interval electric heating, and efficiently, energy-efficient electric heating Product, doses corresponding auxiliary device, hot water storage tank on the basis of heat storage electric boiler, just constitutes heat storage electric boiler system System, the equipment make full use of trough-electricity to store energy storage capacity, and peak load shifting saves electric energy.
To improve new energy digestion capability in boundary, especially alleviation peak regulation is difficult, and the unit of domestic thermal power plant utilizes hour Number declines year by year, and load reduces year by year, and most units have reached unit load lower limit, conventional Direct Air-Cooled fire in the peak regulation period The method of operation of power power plant therrmodynamic system are as follows: boiler feedwater is heated by boiler, is become steam and is entered steam turbine power generation, is generated electricity Steam exhaust afterwards is condensed into condensed water by direct air cooling system, enters back into boiler after high pressure, low-pressure heater heating, so Circulation, can heater use, improve the generated output of power plant and the load of fired power generating unit, make power plant's coal consumption total amount rise.
Utility model content
The purpose of this utility model is to provide a kind of electric heat storage boiler cooperation Direct Air-cooled Units to participate in depth peak regulation System, to solve the method for operation of existing conventional Direct Air-Cooled firepower plant heating system mentioned above in the background art Are as follows: boiler feedwater is heated by boiler, is become steam and is entered steam turbine power generation, and the steam exhaust after power generation is solidifying by direct air cooling system Become condensed water, by high pressure, low-pressure heater heating after enter back into boiler, so recycle, can heater use, improve The generated output of power plant and the load of fired power generating unit, make power plant's coal consumption total amount rise the problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of electric heat storage boiler cooperation Direct Air-Cooled The system that unit participates in depth peak regulation, including boiler, steam turbine, direct air cooling system and heat storage boiler, the output of the boiler End is fixedly connected with the steam turbine, and the output end of the steam turbine is fixedly connected with the direct air cooling system, the Direct Air-Cooled The output end of system is fixedly connected with the heat storage boiler, and the input terminal of the boiler has boiler feed water pipe, institute by flanged joint The outer circumferential walls for stating boiler feed water pipe have low-pressure heater, oxygen-eliminating device and high-pressure heater by flanged joint, the boiler Output end has an overheated steam pipe by flanged joint, and the output end of the overheated steam pipe is defeated by flange and the steam turbine Enter end to be fixedly connected, the output end of the steam turbine has pipeline, high-voltage tube and a weary cold pipe by flanged joint, the pipeline it is defeated Outlet has generator by flanged joint, and the output end of the high-voltage tube is solid by the input terminal of flange and the high-pressure heater Fixed connection, the output end of the weary cold pipe are fixedly connected by flange with the input terminal of the direct air cooling system, described direct The output end of air cooling system has condensate pipe by flanged joint, and the output end of the condensate pipe has condensation by flanged joint The input/output terminal of water pump, the heat storage boiler is connected with heat exchanger, the outer circumferential walls peace of the boiler feed water pipe by adapter tube Equipped with main changeover valve and secondary changeover valve, the output end of the main changeover valve has heat exchanger tube by flanged joint, and the heat exchanger tube passes through The heat exchanger is worn, the output end of the heat exchanger tube is fixedly connected by flange with the input terminal of the secondary changeover valve.
Preferably, there is boiler replenishing water pipe at the top of the oxygen-eliminating device by flanged joint.
Preferably, the outer circumferential walls of pipeline have water supply by flanged joint between the high-pressure heater and the oxygen-eliminating device Pump.
Preferably, the outer circumferential walls of the high-voltage tube have pressure gauge by flanged joint.
Compared with prior art, the utility model has the beneficial effects that this kind of electric heat storage boiler cooperates Direct Air-cooled Unit The system for participating in depth peak regulation, heats the condensation of direct air cooling system using electric heat storage boiler by the united application of accessory Water is arranged in condensate system and bypasses, and the heat exchanger with the heat exchange of electric heat storage boiler one cycle water is stored in the peak regulation period Heat boiler starting heats the cooling unit condensed water of air cooling system by heat exchanger, instead of low pressure all or part of in original system The effect of heater, reduces the online generated output of power plant, and this system can not only realize that the peak regulation period reduces fired power generating unit Online load promotes clean energy resource consumption, can also reduce steam consumption, reduces power plant's coal consumption total amount.
Detailed description of the invention
Fig. 1 is the utility model prototype structure schematic diagram;
Fig. 2 is the utility model overall structure diagram.
In figure: 100 boilers, 110 boiler feed water pipes, 120 overheated steam pipes, 200 steam turbines, 210 generators, 220 high pressures Pipe, 230 weary cold pipes, 300 direct air cooling systems, 310 condensate pipes, 320 condensate pumps, 330 low-pressure heaters, 340 oxygen-eliminating devices, 350 feed pumps, 360 high-pressure heaters, 400 heat storage boilers, 410 heat exchangers, 420 heat exchanger tubes.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of system that electric heat storage boiler cooperation Direct Air-cooled Unit participates in depth peak regulation, by matching , it can be achieved that boiler load fires load in minimum steady, power plant itself can not further decrease load and participate in deeply the united application of part When spending peak regulation, load can be further decreased by this system and participate in peak regulation, referring to FIG. 1-2, include boiler 100, steam turbine 200, direct air cooling system 300 and heat storage boiler 400;
Referring to Fig. 2, the input terminal of boiler 100 has boiler feed water pipe 110, specifically, the input terminal of boiler 100 There is boiler feed water pipe 110 by flanged joint, the output end of boiler 100 has overheated steam pipe 120, boiler by flanged joint 100 electric energy generated using power generator, thus achieve the purpose that peak regulation, it can according to the actual situation, by expanding in booster stations It builds to be spaced and create transformer, directly draw to connect power supply or connect the modes such as power supply from generator outlet bus leading from station service and is Boiler 100 is powered, and the production of a variety of maturations such as common at present solid heat storage, phase-transition heat-storage, fused salt accumulation of heat may be selected in boiler 100 Product, including ontology and matched one cycle water system;
Referring to Fig. 2, the input terminal of steam turbine 200 is fixedly connected with boiler 100, specifically, the output of boiler 100 End is fixedly connected with steam turbine 200, and the output end of overheated steam pipe 120 is fixedly connected by flange with the input terminal of steam turbine 200, The output end of steam turbine 200 has pipeline, high-voltage tube 220 and weary cold pipe 230, the output end of pipeline to pass through flange by flanged joint It is connected with generator 210;
Referring to Fig. 2, the input terminal of direct air cooling system 300 is fixedly connected with weary cold pipe 230, specifically, steamer The output end of machine 200 is fixedly connected with direct air cooling system 300, and the output end of high-voltage tube 220 passes through flange and high-pressure heater 360 Input terminal be fixedly connected, the output end of weary cold pipe 230 is fixedly connected by flange with the input terminal of direct air cooling system 300, The output end of direct air cooling system 300 has condensate pipe 310 by flanged joint, and the output end of condensate pipe 310 passes through flange It is connected with condensate pump 320, the bypass heating system of condensate pipe 310 includes electrically operated valve and plate heat exchanger, in peak regulation Section controls condensed water bypass flow by valve, keeps thermodynamic equilibrium;
Referring to Fig. 2, the output end and heat exchanger 410 of heat storage boiler 400 are fixedly mounted, specifically, Direct Air-Cooled The output end of system 300 is fixedly connected with heat storage boiler 400, and the outer circumferential walls of boiler feed water pipe 110 have low pressure by flanged joint The input/output terminal of heater 330, oxygen-eliminating device 340 and high-pressure heater 360, heat storage boiler 400 is connected with heat exchange by adapter tube Device 410, the outer circumferential walls of boiler feed water pipe 110 are equipped with main changeover valve and secondary changeover valve, and the output end of main changeover valve passes through method Orchid is connected with heat exchanger tube 420, and heat exchanger tube 420 runs through heat exchanger 410, and the output end of heat exchanger tube 420 passes through flange and secondary changeover valve Input terminal be fixedly connected, can be selected according to Power Plant situation in peak regulation period substitution part or whole low when implementation Pressure heater 330 heats air-cooled condensed water, and heat storage boiler 400 is in peak regulation period storage thermal energy as much as possible, non- The peak regulation period discharges thermal energy, and cooperation reaches the maximization of peak regulation power;
Specific in use, carrying out tandem compound, 110 water supply of boiler feed water pipe to being related to system various components first Become steam by boiler 100, then after being heated, steam turbine 200 is entered by overheated steam pipe 120 and is generated electricity, power generation process In high pressure gas passed to by high-voltage tube 220 by high-pressure heater 360, steam exhaust is passed to by weary cold pipe 230 by direct sky Cooling system 300 is condensed into condensed water by direct air cooling system 300, secondly cooperates the condensate pipe containing condensate pump 320 310 are transmitted, and can be selected according to Power Plant situation in peak regulation period substitution part or whole low-pressure heatings when implementation Device 330 heats air-cooled condensed water, and heat storage boiler 400 cooperates heat exchanger 410 to play heating effect, low-pressure heater 330 burden reduces, and after high-pressure heater 360 and low-pressure heater 330 heat, then cooperates boiler feed water pipe 110 again It into boiler 100, so recycles, realizes the system for participating in depth peak regulation, transformation improves peak modulation capacity.
Referring to Fig. 2, in order to carry out moisturizing, guarantee the validity of circulation, specifically, the top of oxygen-eliminating device 340 is logical Crossing flanged joint has boiler replenishing water pipe.
Guarantee the stabilization of transmitting, specifically, high-pressure heater to improve the pressure of water source transmitting referring to Fig. 2 The outer circumferential walls of pipeline have feed pump 350 by flanged joint between 360 and oxygen-eliminating device 340.
Referring to Fig. 2, in order to carry out pressure monitoring to high-voltage tube 220, specifically, the outer circumferential walls of high-voltage tube 220 There is pressure gauge by flanged joint.
It is practical new not departing from this although hereinbefore the utility model is described by reference to embodiment In the case where the range of type, various improvement can be carried out to it and can replace component therein with equivalent.Especially, only Otherwise there are structural conflict, the various features in the utility model disclosed embodiment can be combined with each other by any way Get up to use, the description of exhaustive is not carried out merely for the sake of omission length and section to the case where these combinations in the present specification About resource the considerations of.Therefore, the utility model is not limited to specific embodiment disclosed herein, but wants including falling into right All technical solutions in the range of asking.

Claims (4)

1. a kind of system that electric heat storage boiler cooperation Direct Air-cooled Unit participates in depth peak regulation, it is characterised in that: including boiler (100), the output end of steam turbine (200), direct air cooling system (300) and heat storage boiler (400), the boiler (100) is fixed It connects the steam turbine (200), the output end of the steam turbine (200) is fixedly connected the direct air cooling system (300), described The output end of direct air cooling system (300) is fixedly connected the heat storage boiler (400), and the input terminal of the boiler (100) passes through Flanged joint has boiler feed water pipe (110), and the outer circumferential walls of the boiler feed water pipe (110) have low-pressure heating by flanged joint The output end of device (330), oxygen-eliminating device (340) and high-pressure heater (360), the boiler (100) has overheat by flanged joint The output end of steam pipe (120), the overheated steam pipe (120) is fixed by the input terminal of flange and the steam turbine (200) Connection, the output end of the steam turbine (200) has pipeline, high-voltage tube (220) and weary cold pipe (230) by flanged joint, described The output end of pipeline has generator (210) by flanged joint, and the output end of the high-voltage tube (220) passes through flange and the height The input terminal of pressure heater (360) is fixedly connected, and the output end of the weary cold pipe (230) passes through flange and the direct air cooled system The input terminal of system (300) is fixedly connected, and the output end of the direct air cooling system (300) has condensate pipe by flanged joint (310), the output end of the condensate pipe (310) has condensate pump (320) by flanged joint, the heat storage boiler (400) Input/output terminal be connected with heat exchanger (410) by adapter tube, the outer circumferential walls of the boiler feed water pipe (110) are equipped with main turn Valve and secondary changeover valve are connect, the output end of the main changeover valve has heat exchanger tube (420) by flanged joint, the heat exchanger tube (420) Through the heat exchanger (410), the output end of the heat exchanger tube (420) is fixed by flange and the input terminal of the secondary changeover valve Connection.
2. the system that a kind of electric heat storage boiler cooperation Direct Air-cooled Unit according to claim 1 participates in depth peak regulation, Be characterized in that: there is boiler replenishing water pipe at the top of the oxygen-eliminating device (340) by flanged joint.
3. the system that a kind of electric heat storage boiler cooperation Direct Air-cooled Unit according to claim 1 participates in depth peak regulation, Being characterized in that: there is the outer circumferential walls of pipeline by flanged joint between the high-pressure heater (360) and the oxygen-eliminating device (340) Feed pump (350).
4. the system that a kind of electric heat storage boiler cooperation Direct Air-cooled Unit according to claim 1 participates in depth peak regulation, Be characterized in that: the outer circumferential walls of the high-voltage tube (220) have pressure gauge by flanged joint.
CN201921402371.7U 2019-08-27 2019-08-27 A kind of system that electric heat storage boiler cooperation Direct Air-cooled Unit participates in depth peak regulation Active CN209688799U (en)

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CN201921402371.7U CN209688799U (en) 2019-08-27 2019-08-27 A kind of system that electric heat storage boiler cooperation Direct Air-cooled Unit participates in depth peak regulation

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Application Number Priority Date Filing Date Title
CN201921402371.7U CN209688799U (en) 2019-08-27 2019-08-27 A kind of system that electric heat storage boiler cooperation Direct Air-cooled Unit participates in depth peak regulation

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111810261A (en) * 2020-06-30 2020-10-23 上海电力大学 Condensing unit peak regulation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111810261A (en) * 2020-06-30 2020-10-23 上海电力大学 Condensing unit peak regulation system

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