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Evaporator flow dividing head for improving energy efficiency of air source heat pump

An air source heat pump and evaporator technology, applied in evaporator/condenser, fluid circulation arrangement, lighting and heating equipment, etc., can solve the problem that the evaporation capacity of the evaporator cannot be fully utilized, the refrigerant cannot enter the shunt hole in time, and the refrigerant cannot Evenly push the distribution holes and other problems to achieve the effect of increasing mass flow, easy defrosting, and improving heat exchange capacity

Inactive Publication Date: 2020-09-18
HUNAN EWAVV NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the commonly used split head does not have a guide ring. When the refrigerant enters the split head from the refrigerant inlet, the refrigerant directly enters the liquid collection chamber (such as figure 1 ), and the refrigerant in the middle cannot enter the distribution hole in time. When the distribution head has an inclination angle, the refrigerant cannot be evenly pushed into the distribution hole. The evaporation capacity of the evaporator cannot be fully utilized, the mass flow rate of the refrigerant will be reduced, and the energy efficiency of the unit cannot be fully utilized

Method used

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  • Evaporator flow dividing head for improving energy efficiency of air source heat pump
  • Evaporator flow dividing head for improving energy efficiency of air source heat pump

Examples

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Effect test

Embodiment 1

[0020] see figure 2 , this embodiment provides an evaporator diverter head for improving the energy efficiency of an air source heat pump, including a diverter head body 1, and the diverter head body 1 is provided with a refrigerant circulation channel 101, a liquid collection chamber 102 and a diverter hole 103, wherein the refrigerant The flow channel 101 communicates with the liquid collecting chamber 102 and the distribution hole 103 in sequence. There are multiple distribution holes 103 and are evenly arranged in the distribution head body 1 . The distribution holes 103 are provided with 6 to 12. There is also a guide ring 2 inside, a guide hole 201 is arranged in the middle of the guide ring 2, and a side of the guide ring 2 close to the liquid collecting chamber 102 has a bevel 202, and the bevel 202 is connected to the liquid collecting chamber 102. The inner walls of the cavity 102 are smoothly connected to form a guide slope.

[0021] The working principle of the p...

Embodiment 2

[0024] In this embodiment, on the basis of Embodiment 1, preferably, a conical protrusion 104 is provided in the middle part of the inner wall of the diverter head body 1 above the central axis of the guide ring 2 . The conical protrusions 104 can ensure that when the refrigerant entering from the refrigerant circulation channel 101 flows to the position of the conical protrusions 104, the refrigerant can be evenly divided by the conical protrusions 104, so that the refrigerant can be pushed into the distribution holes 103 evenly and in time. Therefore, it can evenly enter the evaporator for evaporation, further improve the mass flow of the fluid, and thus improve the energy efficiency of the unit.

Embodiment 3

[0026] This embodiment is preferably based on Embodiment 1, and the hypotenuse 202 is an arc hypotenuse 202 . The design of the arc-shaped hypotenuse 202 enables the hypotenuse 202 to be smoothly connected to the inner wall of the liquid collection chamber 102 , thereby forming a flow guide slope, which is more conducive to the even distribution of the refrigerant into the distribution hole 103 .

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Abstract

The invention discloses an evaporator flow dividing head for improving the energy efficiency of an air source heat pump, and relates to the technical field of air source cooling and heating units. Theflow dividing head comprises a flow dividing head body, wherein a refrigerant distribution channel, a liquid collecting cavity and flow dividing holes are formed in the flow dividing head body, the refrigerant distribution channel sequentially communicates with the liquid collecting cavity and the flow dividing holes, a plurality of flow dividing holes are uniformly arranged in the flow dividinghead body, a flow guiding ring is further arranged in the flow dividing head body, flow guiding holes are formed in the middle of the flow guiding ring, a bevel edge is arranged on the side face, close to the liquid collecting cavity, of the flow guiding ring, and the bevel edge is smoothly connected with the inner wall of the liquid collecting cavity to form a diversion bevel. According to the flow dividing head, refrigerants can flow out of the flow dividing holes in time and are not left in the liquid collecting cavity, the mass flow of the refrigerants is increased, the energy efficiency of an air source unit is improved, meanwhile, the heat exchange capacity of a fin heat exchanger is improved, and the fin heat exchanger can be defrosted more easily.

Description

technical field [0001] The invention relates to the technical field of air source cooling and heating units, in particular to an evaporator diverter head for improving the energy efficiency of an air source heat pump. Background technique [0002] At present, the commonly used diverter head does not have a diversion ring. When the refrigerant enters the diverter head from the refrigerant flow inlet, the refrigerant directly enters the liquid collecting cavity (such as figure 1 ), and the refrigerant in the middle cannot enter the shunt hole in time. When the shunt head has an inclined angle, the refrigerant cannot push the shunt hole evenly, and the refrigerant with low liquid level will enter the shunt hole first, so that the refrigerant cannot enter the evaporator evenly to evaporate, so If the evaporation capacity of the evaporator cannot be fully utilized, the mass flow of the refrigerant will be reduced, and the energy efficiency of the unit cannot be fully utilized. ...

Claims

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Application Information

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IPC IPC(8): F25B41/00F25B39/02
CPCF25B39/028F25B2339/02F25B2500/09
Inventor 张亚宁张立辉曹彦雄
Owner HUNAN EWAVV NEW ENERGY TECH