Dual-operation compression-ejection heat pump air conditioner system

A technology of heat pump air conditioning and dual working conditions, which is applied to compressors, compressors with reversible cycles, lighting and heating equipment, etc., which can solve the problems of ineffective recovery of expansion work and energy waste, and reduce the pressure ratio , Improve the utilization rate and improve the cooling efficiency

Inactive Publication Date: 2016-07-27
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the current air source heat pump refrigeration system, the throttling device generally adopts the expansion valve, but the expansion valve throttling will not effectively recover the expansion work, resulting i

Method used

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  • Dual-operation compression-ejection heat pump air conditioner system
  • Dual-operation compression-ejection heat pump air conditioner system
  • Dual-operation compression-ejection heat pump air conditioner system

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings, but the embodiments do not constitute any limitation to the present invention.

[0016] see figure 1 , figure 2 , double working condition compression-ejector heat pump air conditioning system, composed of compressor 1, gas-liquid separator 2, throttle valve 3, indoor heat exchanger 4, ejector 5, first four-way reversing valve 6, outdoor heat exchanger The heater 7 and the second four-way reversing valve 8 are composed. The ejector 5 has a spray needle 51, a working nozzle 52, a suction chamber 53, a mixing chamber 54, and a diffusion chamber 55. The working nozzle 52 is installed inside the suction chamber 53. , the suction chamber 53, the mixing chamber 54 and the diffuser chamber 55 are sequentially connected to form a two-phase working fluid processing chamber, and the outlet of the working nozzle 52 communicates with the two-phase working ...

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Abstract

The invention relates to a dual-operation compression-ejection heat pump air conditioner system. The dual-operation compression-ejection heat pump air conditioner system comprises an ejector and two four-way reversing valves. An exhaust port of a compressor is connected with an inlet of an outdoor heat exchanger and an inlet of an indoor heat exchanger through the first four-way reversing valve. An outlet of the outdoor heat exchanger is connected with a work nozzle inlet and a suction chamber inlet of the ejector through the second four-way reversing valve. An outlet of the ejector is connected with an inlet of a gas-liquid separator through a pipeline. A gas outlet of the gas-liquid separator is connected with a gas inlet of the compressor through a pipeline. A liquid outlet of the gas-liquid separator is connected with an inlet of a throttle valve through a pipeline. An outlet of the throttle valve is connected with the inlet of the indoor heat exchanger and the inlet of the outdoor heat exchanger through the first four-way reversing valve. An outlet of the indoor heat exchanger is connected with the work nozzle inlet and the suction chamber inlet of the ejector through the second four-way reversing valve. The ejector is used for replacing an expansion valve to recycle expansion work, so that the refrigeration efficiency is improved, and the two four-way reversing valves are used for switching to achieve the refrigeration and heating dual-operation function.

Description

technical field [0001] The invention relates to a heat pump air-conditioning system, in particular to a dual-working-condition compression-injection heat pump air-conditioning system. Background technique [0002] With the increasing shortage of energy, the air source heat pump air conditioning system has attracted more and more attention from all over the world. The air source heat pump air-conditioning system refers to a new energy system that obtains low-grade heat energy from natural air and converts it into high-grade heat energy by using electric energy. Its existence effectively alleviates the problem of the shortage of available energy. The working principle of the air source heat pump air conditioning system is the same as that of the vapor compression refrigeration system, which is the reverse Carnot cycle principle, and all components have throttling devices. The throttling device in the current air source heat pump refrigeration system generally adopts the expan...

Claims

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Application Information

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IPC IPC(8): F25B25/00F25B13/00F25B41/04F25B9/08F25B41/20
CPCF25B9/08F25B13/00F25B25/00F25B2341/001F25B2313/02742F25B41/20
Inventor 张振迎房朝龙王洪利黄春松
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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