Medium-low-temperature hot source heat pump steam system

A low-temperature heat source and steam system technology, applied in heat pumps, steam generation, steam generation methods, etc., can solve problems such as low energy saving effect and complex structure, and achieve the effects of avoiding wet compression, expanding application range, and saving resources

Inactive Publication Date: 2015-11-11
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if only ordinary heat pumps are used to generate steam higher than 100°C, there are also high-temperature steam heat pump systems that use low-grade waste heat (ie, medium and low temperature heat sources) to generate steam higher than

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  • Medium-low-temperature hot source heat pump steam system

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Embodiment Construction

[0017] Such as figure 1 As shown, a medium and low temperature heat source heat pump steam system includes a heat pump circulation loop through which refrigerant passes and a flash evaporation circulation loop through which flash water passes, wherein the heat pump circulation loop is provided with an evaporator 1, a high temperature machine 3, oil separator 4, condenser 5, economizer 8, subcooler 9 and electronic expansion valve F7, the evaporator 1 is connected with a medium and low temperature heat source pipeline, and the oil return pipe of the oil separator 4 is connected to The oil pool of the high-temperature compressor 3, the flash circulation circuit is provided with a flash evaporator 6 and a pressurized water pump 7, the flash circulation circuit passes through the condenser 5, and the condenser 5 is located at the outlet of the pressurized water pump 7 Between the inlet of the flash evaporator 6 , the refrigerant outlet pipeline of the evaporator 1 is bypassed with...

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Abstract

A medium-low-temperature hot source heat pump steam system comprises a heat pump circulating loop allowing a refrigerant to pass and a flash evaporation circulating loop allowing flash evaporation water to pass, wherein an evaporator, a high-temperature compressor, an oil separator, a condenser, an economizer, a subcooler and an electronic expansion valve are sequentially arranged on the heat pump circulating loop, a medium-low-temperature hot source pipeline is communicated to the evaporator, an oil return pipe of the oil separator is communicated to an oil bath of the high-temperature compressor, a flash evaporator and a pressurizing water pump are arranged on the flash evaporation circulating loop, the flash evaporation circulating loop passes the condenser, the condenser is positioned between an outlet of the pressurizing water pump and an inlet of the flash evaporator, a first bypass pipeline is bypassed on a refrigerant outlet pipeline of the evaporator, and the first bypass pipeline passes the subcooler and serves as the cold source of the subcooler. The system can utilize low-grade residual heat to produce steam higher than 100 DEG C, is simple in structure, and can fully recycle waste heat and fully utilize resources.

Description

technical field [0001] The invention mainly relates to the technical field of high-temperature heat pumps, in particular to a medium-low temperature heat source heat pump steam system which utilizes medium-low temperature heat sources to generate steam. Background technique [0002] With the increasingly prominent international energy problems, how to efficiently use energy, recover various waste heat and reduce the environmental pollution of heat discharge has become the focus of attention. A heat pump is a device that transfers heat energy from a low-level heat source to a high-level heat source. Usually, low-grade heat energy is first obtained from natural air, water or soil, and then electricity is used to do work, and then high-grade heat energy that can be used is provided to people. However, if only ordinary heat pumps are used to generate steam higher than 100°C, there are also high-temperature steam heat pump systems that use low-grade waste heat (ie, medium and low...

Claims

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Application Information

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IPC IPC(8): F25B30/06F22B1/00
Inventor 龚宇烈曲勇陆振能姚远高一峰刘炳伸马伟斌
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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