CN214745663U - System for adopting electric boiler to cooperate with indirect air cooling unit to participate in deep peak shaving - Google Patents
System for adopting electric boiler to cooperate with indirect air cooling unit to participate in deep peak shaving Download PDFInfo
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- CN214745663U CN214745663U CN202022441451.2U CN202022441451U CN214745663U CN 214745663 U CN214745663 U CN 214745663U CN 202022441451 U CN202022441451 U CN 202022441451U CN 214745663 U CN214745663 U CN 214745663U
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Abstract
The invention relates to the technical field of power equipment, in particular to a system for participating in deep peak shaving by matching an electric heating boiler with an indirect air cooling unit. The low-pressure electric heating boiler comprises an air cooler, a condensed water pipe of the air cooler is respectively communicated into a low-pressure heater and a heat exchanger through a shunt three-way valve, the outlet end of a heating water outlet pipe of the low-pressure heater is communicated into the heat exchanger through a confluence three-way valve, the outlet end of the confluence three-way valve is connected with a water replenishing pipe, and one side of the heat exchanger is connected with an electric heating boiler. The system can replace part or all of the low-pressure heaters during peak regulation, can realize that the load of the boiler is in the lowest stable combustion load state, can further reduce the load of a power generation system when the generator set can not further reduce the load to participate in deep peak regulation, improves the peak regulation effect, reduces the internet load of the generator set, promotes the consumption of clean energy, reduces the steam consumption, reduces the total coal consumption of a power plant, and reduces the energy waste.
Description
Technical Field
The utility model relates to a power equipment technical field, specifically speaking relates to an adopt indirect air cooling unit of electric heat boiler cooperation to participate in system of degree of depth peak regulation.
Background
Because the electricity consumption of China is greatly increased, the original electric power operation mode is no longer suitable, and various new energy sources are continuously supplemented into power generation energy sources. The peak shaving is that the main power grid runs in a reasonable interval by timely regulating and controlling the generator set (mainly a thermal power generating set), and the energy consumption is controlled within a reasonable amount. In order to improve the consumption capacity of new energy in a Xinjiang province, particularly relieve the peak regulation difficulty, the utilization hours of units of domestic thermal power plants are reduced year by year, the load is reduced year by year, and most of the units reach the lower limit of the unit load in the peak regulation period, and the peak regulation capacity needs to be improved through modification. In the prior art, the deep peak shaving method mainly comprises the steps of reducing load of a machine set, introducing bypass peak shaving, putting into a boiler for peak shaving and the like, wherein the putting into the boiler for peak shaving has higher practical benefit. However, the simple peak regulation technology of the boiler has limited effect in the using process, can not well reduce the internet load of the generator set, has effective capability of absorbing clean energy, and causes energy waste.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an adopt indirect air cooling unit of electric boiler cooperation to participate in system of degree of depth peak regulation to solve the problem that proposes among the above-mentioned background art.
For realizing the solution of above-mentioned technical problem, the utility model aims to provide an adopt indirect air cooling unit of electric heat boiler cooperation to participate in system of degree of depth peak regulation, including the air-cooled machine, the condensate pipe exit end of air-cooled machine is equipped with the reposition of redundant personnel three-way valve, one of them exit end of reposition of redundant personnel three-way valve feeds through in the low pressure feed water pipe feeds through low pressure feed water heater, low pressure feed water heater's heating outlet pipe exit end is equipped with the confluence three-way valve, the exit end of confluence three-way valve is connected with the moisturizing pipe, another exit end of reposition of redundant personnel three-way valve feeds through in the heat exchanger through the heat transfer inlet tube, the heat transfer outlet pipe exit end of heat exchanger feeds through in one of them entrance point of confluence three-way valve, one side of heat exchanger is connected with electric heat boiler.
As a further improvement of the technical scheme, a first flowmeter and a first temperature sensor are arranged at one end of the condensate pipe close to the flow dividing three-way valve side by side.
As a further improvement of the technical scheme, a second flowmeter is arranged on the heating water inlet pipe.
As a further improvement of the technical scheme, a third flow meter and a second temperature sensor are arranged at one end of the heating water outlet pipe close to the confluence three-way valve side by side.
As a further improvement of the technical scheme, a fourth flowmeter and a third temperature sensor are arranged at one end of the water replenishing pipe close to the confluence three-way valve side by side.
As a further improvement of the technical scheme, a fifth flowmeter is arranged on the heat exchange water inlet pipe.
As a further improvement of the technical scheme, a sixth flowmeter and a fourth temperature sensor are arranged at one end of the heat exchange water outlet pipe close to the confluence three-way valve side by side.
As a further improvement of the technical scheme, an industrial personal computer of the electric boiler is arranged on the electric boiler.
Compared with the prior art, the beneficial effects of the utility model are that: in this system that adopts electric boiler cooperation indirect air cooling unit to participate in degree of depth peak regulation, through set up the heating bypass of constituteing by electric boiler and heat exchanger at the air cooling condensate system, can replace part or whole low pressure feed water heater's work at the peak regulation period, can realize that the boiler load is in minimum steady burning load state, can further reduce power generation system's load when generating set self can not further reduce the load and participate in degree of depth peak regulation, the effect of improving the peak regulation, reduce the online load of generating set, promote clean energy and consume, reduce the steam quantity, and reduce the coal consumption total amount of power plant, reduce the energy waste.
Drawings
FIG. 1 is a diagram of the overall architecture of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
fig. 3 is a partial structure diagram of the control system of the present invention.
The various reference numbers in the figures mean:
1. an air cooler; 11. a condensate pipe; 111. a first flow meter; 112. a first temperature sensor; 12. a shunt three-way valve;
2. a low pressure heater; 21. heating the water inlet pipe; 211. a second flow meter; 22. heating the water outlet pipe; 221. a third flow meter; 222. a second temperature sensor; 23. a confluence three-way valve; 24. a water replenishing pipe; 241. a fourth flow meter; 242. a third temperature sensor;
3. a heat exchanger; 31. a heat exchange water inlet pipe; 311. a fifth flow meter; 32. a heat exchange water outlet pipe; 321. a sixth flow meter; 322. a fourth temperature sensor;
4. an electric boiler; 41. an industrial personal computer of an electric boiler.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-2, the present embodiment provides a system using an electric boiler to cooperate with an indirect air cooling unit to participate in deep peak shaving, which includes an air cooling machine 1, a diversion three-way valve 12 is disposed at an outlet end of a condensed water pipe 11 of the air cooling machine 1, one of outlet ends of the diversion three-way valve 12 is communicated with a low-pressure heater 2 through a heating water inlet pipe 21, a confluence three-way valve 23 is disposed at an outlet end of a heating water outlet pipe 22 of the low-pressure heater 2, an outlet end of the confluence three-way valve 23 is connected with a water replenishing pipe 24, another outlet end of the diversion three-way valve 12 is communicated with a heat exchanger 3 through a heat exchange water inlet pipe 31, an outlet end of a heat exchange water outlet pipe 32 of the heat exchanger 3 is communicated with one of inlet ends of the confluence three-way valve 23, and one side of the heat exchanger 3 is connected with the electric boiler 4.
In this embodiment, a first flowmeter 111 and a first temperature sensor 112 are arranged in parallel at one end of the condensate pipe 11 close to the three-way valve 12, and are used for measuring the total flow and temperature of the condensate discharged from the air cooler 1.
In this embodiment, the heating water inlet pipe 21 is provided with a second flow meter 211 for measuring the water inlet flow of the low pressure heater 2.
Further, a third flow meter 221 and a second temperature sensor 222 are arranged in parallel at one end of the heating water outlet pipe 22 close to the confluence three-way valve 23, and are used for measuring the flow rate and the temperature of the preheated water heated by the low-pressure heater 2.
In this embodiment, a fourth flowmeter 241 and a third temperature sensor 242 are arranged side by side at one end of the water supply pipe 24 close to the confluence three-way valve 23, and are used for measuring the total flow and temperature of the preheated water after the circulation from the low-pressure heater 2 and the heat exchanger 3.
In this embodiment, the fifth flowmeter 311 is disposed on the heat exchange water inlet pipe 31 and is configured to measure the water inlet flow of the heat exchanger 3.
Further, a sixth flowmeter 321 and a fourth temperature sensor 322 are arranged in parallel at one end of the heat exchange water outlet pipe 32 close to the confluence three-way valve 23, and are used for measuring the flow rate and temperature of the preheated water heated by the heat exchanger 3.
In this embodiment, the electric boiler 4 is provided with the electric boiler industrial personal computer 41, which is convenient for monitoring and controlling the operation process of the electric boiler 4.
In addition, in this embodiment, the electric boiler 4 uses the electric energy generated by the power plant generator to achieve the purpose of peak shaving, and in the specific implementation process, the power supply mode includes, but is not limited to, expanding the interval and building a transformer in the booster station, directly leading the power supply from the service power, or leading the power supply from the generator outlet bus according to the actual situation.
Specifically, the electric boiler 4 may select various mature products of currently common solid heat storage, phase change heat storage, molten salt heat storage, and the like, or may be a resistance boiler and an electrode boiler without a heat storage function, including a boiler body and a matched primary circulating water system, or may be an electric boiler without a heat storage function, which is matched with a heat storage water tank, a phase change heat storage, a molten salt heat storage, and the like to form an electric boiler system.
Further, the electric boiler 4 may optionally have a function of storing heat energy during peak shaving periods, so as to release heat energy during non-peak shaving periods; or the electric boiler 4 can be started or stopped synchronously with peak regulation without heat storage equipment.
In addition, in the specific operation process, according to the condition of a power plant unit, the operation of the electric heating boiler 4 and the heat exchanger 3 in the peak shaving period can be selected to replace part or all of the low-pressure heater 2 to heat the air condensation water discharged by the air cooler 1.
Specifically, in the condensate bypass heating system, the high-pressure heater and the low-pressure heater 2 can be heating systems composed of electric valves and plate heat exchangers, and the flow of the condensate bypass is controlled by the shunt three-way valve 12 in the peak shaving period so as to keep thermodynamic balance.
As shown in fig. 3, in this embodiment, a control system is further provided, which includes a state sensing unit, an operation analysis unit, and an intelligent control unit, where the state sensing unit, the operation analysis unit, and the intelligent control unit are sequentially connected through digital signal communication, and the state sensing unit is configured to collect and upload state data and remotely monitor an operation site; the operation analysis unit is used for calculating and analyzing peak regulation values according to the collected data, uploading calculation results and displaying peak regulation effects; and the intelligent regulation and control unit is used for regulating and controlling the operation process of peak shaving and carrying out safety management according to the calculation result.
Further, through the system, the intelligent regulation and control of the system adopting the electric boiler to cooperate with the indirect air cooling unit to participate in deep peak regulation can be realized, the workload of workers is reduced, and the peak regulation effect and efficiency are improved.
When the system adopting the electric boiler to cooperate with the indirect air cooling unit to participate in the deep peak shaving is used, firstly, the power generation operation is carried out according to a normal flow, when the generator set cannot participate in the peak shaving by further reducing the load, the electric boiler 4 is started, meanwhile, part of condensed water is shunted to the heat exchanger 3 through the shunt three-way valve 12, the heat exchanger 3 is communicated with the water replenishing pipe 24 through the confluence three-way valve 23, the water flow of each measuring point is measured, the water temperature of each measuring point is measured, and in the process, the shunt three-way valve 12 and the confluence three-way valve 23 are respectively adjusted according to the results of measurement and comparative analysis, so that the boiler load is in the lowest stable combustion load state.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an adopt electric heat boiler cooperation indirect air cooling unit to participate in system of degree of depth peak regulation which characterized in that: including air-cooled machine (1), condensate pipe (11) exit end of air-cooled machine (1) is equipped with reposition of redundant personnel three-way valve (12), one of them exit end of reposition of redundant personnel three-way valve (12) communicates low pressure feed water pipe (21) in low pressure feed water heater (2), heating outlet pipe (22) exit end of low pressure feed water heater (2) is equipped with confluence three-way valve (23), the exit end of confluence three-way valve (23) is connected with moisturizing pipe (24), another exit end of reposition of redundant personnel three-way valve (12) communicates in heat exchanger (3) through heat transfer inlet tube (31), heat transfer outlet pipe (32) exit end of heat exchanger (3) communicates in one of them entrance point of confluence three-way valve (23), one side of heat exchanger (3) is connected with electric heat boiler (4).
2. The system of claim 1, wherein the electric boiler is used in conjunction with an indirect air cooling unit to participate in deep peak shaving, and the system comprises: and a first flowmeter (111) and a first temperature sensor (112) are arranged at one end of the condensate pipe (11) close to the flow dividing three-way valve (12) side by side.
3. The system of claim 1, wherein the electric boiler is used in conjunction with an indirect air cooling unit to participate in deep peak shaving, and the system comprises: and a second flowmeter (211) is arranged on the heating water inlet pipe (21).
4. The system of claim 1, wherein the electric boiler is used in conjunction with an indirect air cooling unit to participate in deep peak shaving, and the system comprises: and a third flow meter (221) and a second temperature sensor (222) are arranged at one end of the heating water outlet pipe (22) close to the confluence three-way valve (23) in parallel.
5. The system of claim 1, wherein the electric boiler is used in conjunction with an indirect air cooling unit to participate in deep peak shaving, and the system comprises: and a fourth flowmeter (241) and a third temperature sensor (242) are arranged at one end of the water supplementing pipe (24) close to the confluence three-way valve (23) side by side.
6. The system of claim 1, wherein the electric boiler is used in conjunction with an indirect air cooling unit to participate in deep peak shaving, and the system comprises: and a fifth flowmeter (311) is arranged on the heat exchange water inlet pipe (31).
7. The system of claim 1, wherein the electric boiler is used in conjunction with an indirect air cooling unit to participate in deep peak shaving, and the system comprises: and a sixth flowmeter (321) and a fourth temperature sensor (322) are arranged at one end of the heat exchange water outlet pipe (32) close to the confluence three-way valve (23) in parallel.
8. The system of claim 1, wherein the electric boiler is used in conjunction with an indirect air cooling unit to participate in deep peak shaving, and the system comprises: and an electric boiler industrial personal computer (41) is arranged on the electric boiler (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022441451.2U CN214745663U (en) | 2020-10-28 | 2020-10-28 | System for adopting electric boiler to cooperate with indirect air cooling unit to participate in deep peak shaving |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022441451.2U CN214745663U (en) | 2020-10-28 | 2020-10-28 | System for adopting electric boiler to cooperate with indirect air cooling unit to participate in deep peak shaving |
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| CN214745663U true CN214745663U (en) | 2021-11-16 |
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| CN202022441451.2U Active CN214745663U (en) | 2020-10-28 | 2020-10-28 | System for adopting electric boiler to cooperate with indirect air cooling unit to participate in deep peak shaving |
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