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High-low temperature changeable graded evaporation air-conditioner heat pump water heater

A technology for heat pump water heaters and evaporative air conditioners, which is applied in the direction of reversible cycle compressors, lighting and heating equipment, fluid circulation arrangements, etc., and can solve problems such as system failure

Inactive Publication Date: 2006-05-24
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the temperature difference between the evaporating temperature and the condensing temperature of the cycle in the above two cases is greater than 80°C, this will cause the system to fail to work normally.

Method used

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  • High-low temperature changeable graded evaporation air-conditioner heat pump water heater
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  • High-low temperature changeable graded evaporation air-conditioner heat pump water heater

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Embodiment Construction

[0022] The structural principle and working principle of the circulation system of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] see figure 1 , the high and low temperature switchable, graded evaporative air conditioner heat pump water heater of the present invention includes a refrigeration compressor 1, an oil-gas separator 2, a first reversing three-way solenoid valve 3, an indoor air-cooled condenser (ie, an air heater) or an indoor air-cooled condenser. Cold evaporator (that is, air cooler) 4, reversing four-way solenoid valve 5, rectification gas-liquid separator 6, first throttle valve 7, second reversing three-way solenoid valve 8, heat exchanger 9, second Throttle valve 10, outdoor air-cooled evaporator or outdoor air-cooled condenser 11, indoor water-cooled condenser (ie water heater) 12, first solenoid valve 13, second solenoid valve 14, third solenoid valve 15, fourth solenoid valve 16. The fifth el...

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Abstract

The disclosed device includes refrigeration compressor, indoor water-cooled condenser (water heater), indoor air-cooling condenser (air heater), indoor air-cooling evaporator (air conditioner), and gas liquid separator etc. Based on different environment temperatures and different usages, setting each solenoid valve at different states realizes following switchable operation modes: heat pump cyclic mode of air heater at winter, heat pump cyclic mode of water heater at winter, refrigeration cycle mode of cold air and water heater at summer, refrigeration cycle mode of cold air at summer, heat pump cyclic mode of water heater at spring and autumn. The invention discloses environmental protection type multifunction equipment integrating air conditioner, heating and hot water.

Description

technical field [0001] The invention belongs to the subject field of engineering thermophysics and energy utilization, and relates to a heat pump water heater, in particular to a high and low temperature switchable staged evaporative air conditioning heat pump water heater. Background technique [0002] Traditional vapor compression heat pumps and refrigeration cycles are both Reversed Rankine cycles. During the cycle, the refrigerant in the evaporator evaporates at low pressure, absorbing heat from a lower temperature heat source. The low-pressure steam flowing out of the evaporator is compressed by the compressor to form a high-pressure (high-temperature) gas, and then the heat is released by the condenser to condense into a high-pressure refrigerant liquid. Then, the high-pressure liquid is throttled and depressurized by a throttle valve to become a low-temperature and low-pressure refrigerant. The refrigerant gas-liquid two-phase fluid, finally, absorbs heat from a low-...

Claims

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Application Information

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IPC IPC(8): F25B13/00F25B41/04
Inventor 陈流芳
Owner XI AN JIAOTONG UNIV
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