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Water and refrigerant heat exchanger with evaporative heat exchange and condensing heat exchange functions

A technology of condensation heat exchange and evaporation heat exchange, which is applied in the direction of evaporator/condenser, refrigerator, refrigeration components, etc. Poor effect and other problems, to achieve the effect of solving the low utilization rate of heat exchange area, high utilization rate of cylinder space, and reducing the impact

Active Publication Date: 2013-01-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low utilization rate of heat exchange area, poor heat exchange effect, and large difference in heat exchange between evaporation and condensation during the operation of the evaporation-condensation dual-purpose heat exchanger in the existing heat pump system. problem, and then provide a water and refrigerant high-efficiency heat exchanger with both evaporation heat exchange and condensation heat exchange functions

Method used

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  • Water and refrigerant heat exchanger with evaporative heat exchange and condensing heat exchange functions
  • Water and refrigerant heat exchanger with evaporative heat exchange and condensing heat exchange functions
  • Water and refrigerant heat exchanger with evaporative heat exchange and condensing heat exchange functions

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specific Embodiment approach 1

[0008] Specific implementation mode one: combine figure 1 Describe this embodiment, a water-refrigerant heat exchanger with both evaporation heat exchange and condensation heat exchange functions in this embodiment includes a cylinder 1, a first tube cavity 2-1, a second tube cavity 2- 2 and a plurality of heat exchange tubes 8, the first tube cavity body 2-1 and the second tube cavity body 2-2 are fixedly connected to the left and right ends of the cylinder body 1 respectively, and the medium water inlet 3 and the medium water outlet 4 are arranged at the On the first tube cavity 2-1 or the second tube cavity 2-2, the refrigerant inlet 5 and the first gaseous refrigerant nozzle 6 are arranged on the upper end of the cylinder 1, and the liquid refrigerant nozzle 10 is arranged on the cylinder 1 At the lower end of the lower end, a plurality of heat exchange tubes 8 are arranged in parallel in the cylinder 1 from top to bottom, and communicate with the first tube cavity 2-1 and...

specific Embodiment approach 2

[0015] Specific implementation mode two: combination figure 2 To illustrate this embodiment, the water-refrigerant heat exchanger of this embodiment also includes a plurality of baffles 11, and the plurality of baffles 11 are respectively fixed on the upper end of the inner wall of the cylinder 1 and the first partition 9, and more The baffles 11 are interlaced with each other. With such arrangement, when the present invention is used as a condenser, the flow rate and disturbance of the refrigerant gas entering through the first gas refrigerant nozzle 6 are effectively improved, and the effect of heat exchange is enhanced. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0016] Specific implementation mode three: combination image 3 To illustrate this embodiment, the water and refrigerant heat exchanger of this embodiment also includes a second falling film device 12, a second separator 13 and a tube body 14, and the second falling film device 12 is arranged on the first falling film device 12 through the tube body 14. Below the film device 7, and the second falling film device 12 is located in the upper chamber, the lower end of the second falling film device 12 has a plurality of second through holes 12-1, and the second partition 13 is arranged on the first falling film device Between 7 and the second falling film device 12, a second gaseous refrigerant nozzle 20 is opened on the cylinder 1 above the second separator 13. Such setting can effectively increase the amount of falling film evaporation refrigerant and improve the effect of heat exchange. At the same time, during the condensation process, the flow channel size of the refrigerant ...

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Abstract

The invention relates to a water and refrigerant heat exchanger with evaporative heat exchange and condensing heat exchange functions, which relates to a water and refrigerant heat exchanger. The water and refrigerant heat exchanger with evaporative heat exchange and condensing heat exchange functions provided by the invention solves the problem that the heat exchange area utilization ratio in an operating process of an evaporative-condensing dual purpose heat exchanger in current heat pump system is low, the heat exchange effect is poorer, and the heat exchange amounts in evaporative and condensing work conditions differ greatly. A first tube cavity and a second tube cavity are arranged at the left and right ends of a tube body. A medium water inlet and a medium water outlet are arranged in the first tube cavity or the second tube cavity. A refrigerant inlet and a first gas refrigerant orifice are arranged at the upper end of the tube body. A liquid refrigerant orifice is arranged at the lower end of the tube body. A plurality of heat exchange tubes are arranged in the tube body in parallel from top to bottom. A first falling film absorber is arranged on a lower end opening of the refrigerant inlet in the tube body. A first separator is arranged in the middle of the tube body to divide the inner part of the tube body into upper and lower cavities. When the heat exchanger is used as an evaporator, the upper cavity is evaporated by a falling film and the lower cavity is evaporated by hydraulic filling. The water and refrigerant heat exchanger with the evaporative heat exchange and condensing heat exchange functions provided by the invention is used as an evaporative-condensing dual purpose heat exchanger in a heat pump system.

Description

technical field [0001] The invention relates to a water-refrigerant heat exchanger, in particular to a water-refrigerant high-efficiency heat exchanger with both evaporation heat exchange and condensation heat exchange functions. Background technique [0002] The winter and summer operating mode switching methods of the water source heat pump system include two types: one is to use the opening and closing combination of the valve group on the medium water pipeline to change the flow direction of the medium water to realize the switching of working conditions; the other is to use the four-way reversing valve to change The flow direction of the refrigerant realizes the switching of working conditions. In a water-source heat pump system that uses a four-way reversing valve to change the flow direction of the refrigerant to switch operating conditions, the water-refrigerant heat exchanger must have the dual functions of an evaporator and a condenser, that is, as a heat exchanger...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B39/00
Inventor 张承虎李亚平
Owner HARBIN INST OF TECH
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