A kind of thermoelectric decoupling system and operation method

A technology of reheating steam and absorption heat pump, which is applied in steam engine installations, machines/engines, mechanical equipment, etc., can solve problems such as difficulty in meeting user needs, and achieve the effect of high energy utilization efficiency

Active Publication Date: 2020-04-21
HUANENG POWER INT INC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Limited by the constraints of thermal and electrical loads, when the electrical load rate of cogeneration units is too low, the thermal load is difficult to meet user needs

Method used

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  • A kind of thermoelectric decoupling system and operation method
  • A kind of thermoelectric decoupling system and operation method

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 As shown, a thermoelectric decoupling system of the present invention includes a boiler 1, a steam turbine high pressure cylinder 2, a steam turbine medium and low pressure cylinder 3, a condenser 4, a condensate pump 5 and a heat recovery system 6 connected in sequence, and a generator 703 , condenser 704, evaporator 706 and absorber 708 are connected in sequence to form a circulation loop to form an absorption heat pump; the main steam outlet of the boiler 1 is connected to the generator 703 of the absorption heat pump through the main steam ejector 701, and the boiler 1 The reheat steam outlet is connected to the generator 703 of the absorption heat pump through the reheat steam ejector 702. The main steam ejector 701 inlet is equipped with a main steam ejector high-pressure steam regulating valve 713, and t...

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Abstract

The invention discloses a thermoelectric decoupling system and an operating method thereof. The system comprises a boiler, a steam turbine high-pressure cylinder, a steam turbine middle-low-pressure cylinder, a steam condenser, a condensate pump and a heat regenerative system which communicate with one another in sequence, and further comprises a generator, a condenser, an evaporator and an absorber which communicate with one another in sequence to form a circulating loop to form an absorption type heat pump. Flow of main stream which enters the generator is regulated by a main steam ejector high-pressure steam regulating valve which is connected with a main steam ejector inlet, and a main steam ejector by-pass regulating valve; flow of reheated steam which enters the generator is regulated by a reheated steam ejector high-pressure steam regulating valve which is connected with a reheated steam ejector inlet, and a reheated steam ejector by-pass regulating valve; and the regulating target is that a proportion of main steam flow to reheated steam flow, which enters the generator, is equal to a proportion of main stream flow, which enters the steam turbine high-pressure cylinder fromthe boiler, to reheated steam flow which enters the steam turbine middle-low-pressure cylinder. The thermoelectric decoupling system is small in system investment and is high in energy utilization efficiency.

Description

technical field [0001] The invention relates to the technical field of cogeneration of heat and power, in particular to a thermoelectric decoupling system and an operation method. Background technique [0002] Combined heat and power generation is the joint production of heat and electricity by generating units, and using combined heat and power units to supply external heat is an effective means to improve fuel utilization efficiency. However, with the growth of my country's power generation installed capacity, especially the growth of renewable energy power generation installed capacity, the utilization hours and load rate of combined heat and power units are generally low. Limited by the constraints of thermal and electrical loads, when the electrical load rate of cogeneration units is too low, it is difficult for the thermal load to meet user needs. Therefore, it is an urgent problem to be solved in my country's thermal power industry to realize thermoelectric decouplin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D15/10F01D25/00F01K13/00F01K17/02F01K21/00
CPCF01D15/10F01D25/00F01K13/00F01K17/02F01K21/00
Inventor 常仁杰朱庆玉段锡军尤景刚刘明严俊杰
Owner HUANENG POWER INT INC
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