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Gas-supplying enthalpy-increasing type heat pump circulating system with ejector for heat pump device

A technology of supplementing air to increase enthalpy and heat pump device, which is applied in the direction of fluid circulation arrangement, lighting and heating equipment, refrigeration components, etc., to reduce energy consumption, promote development, and solve the effect of heating capacity attenuation

Active Publication Date: 2014-05-07
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, there is still a gap in the technical measures of applying ejectors in the heat pump cycle system of supplementary air and enthalpy increase

Method used

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  • Gas-supplying enthalpy-increasing type heat pump circulating system with ejector for heat pump device
  • Gas-supplying enthalpy-increasing type heat pump circulating system with ejector for heat pump device

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Such as figure 1 As shown, the present invention is a heat pump circulation system with an ejector for supplementing air and increasing enthalpy, including a compressor 101, the outlet of the compressor 101 is connected to the inlet of the condenser 102, and the outlet of the condenser 102 is connected to the inlet of the condenser 102. The nozzle inlets of the ejector 103 are connected, the injected refrigerant inlet of the ejector 103 is connected with the gas phase outlet of the second-stage flash evaporator 106, and the outlet of the ejector 103 is connected with the inlet of the first-stage flash evaporator 104; The outlet of the first-stage flash evaporator 104 is divided into two routes, one outlet of saturated gaseous refrigerant is connected to the supplementary suction port in the middle of compressor 101, and the oth...

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Abstract

The invention relates to a gas-supplying enthalpy-increasing type heat pump circulating system with an ejector for a heat pump device. An outlet of a compressor is connected with an inlet of a condenser, an outlet of the condenser is connected with a nozzle inlet of the ejector, an injected refrigerating agent inlet of the ejector is connected with a gas phase outlet of a second-stage flash evaporator, and an outlet of the ejector is connected with an inlet of a first-stage flash evaporator; a saturated gaseous refrigerating agent outlet of the first-stage flash evaporator is connected with an intermediate gas-supplying port of the compressor, and a saturated liquid refrigerating agent outlet of the first-stage flash evaporator is connected with an inlet of the second-stage flash evaporator after passing through a first-stage expansion valve or a capillary tube; a saturated gaseous refrigerating agent outlet of the second-stage flash evaporator is connected with the injected refrigerating agent inlet of the ejector, and a saturated liquid refrigerating agent outlet of the second-stage flash evaporator is connected with an inlet of an evaporator after passing through a second-stage expansion valve or a capillary tube; an outlet of the evaporator is connected with an air suction port of the compressor. Through the adoption of the ejector and the auxiliary flash evaporators, the recycling of expansion work during the throttling process is realized, and meanwhile the intermediate-stage gas-supplying amount of the compressor is increased, thus the heating performance of the heat pump system is improved.

Description

technical field [0001] The invention belongs to the technical field of heat pumps, and in particular relates to a heat pump cycle system with an injector for supplementing air and increasing enthalpy. Background technique [0002] As an energy-saving and environmentally friendly heating technology, vapor compression air source heat pump technology is increasingly being used in commercial buildings and residential heating, such as heat pump air conditioners and heat pump water heaters. With the development of the economy and the improvement of people's living standards, the development of air source heat pumps in my country is very rapid, and the research on related technologies is also constantly innovating. However, when the vapor compression air source heat pump is used at a lower ambient temperature of the outdoor air, the pressure difference between the suction and discharge of the compressor increases, the density of the refrigerant sucked by the compressor decreases, a...

Claims

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Application Information

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IPC IPC(8): F25B9/08F25B41/06F25B41/325F25B41/37
Inventor 鱼剑琳王骁邢美波
Owner XI AN JIAOTONG UNIV
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