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Flow equalizing structure of distributor of refrigerating device and distributor

A refrigeration device and distributor technology, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc. It can solve the problems of decreased distribution uniformity, difference in gas-liquid two-phase distribution uniformity, and high installation requirements for distributors, so as to achieve uniform distribution. , Eliminate the effect of refrigerant drift

Pending Publication Date: 2017-06-23
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, distributors mainly have several structural forms such as socket type, conical type and reflective type. These structural forms generally have problems, that is, affected by the inlet gas-liquid two-phase flow pattern, the distribution uniformity of the gas-liquid two-phase is relatively poor. big difference
[0004] Specifically, when the inlet is a mist flow with a relatively uniform gas-liquid two-phase distribution or a centrally symmetrical annular flow, the split flow is relatively uniform; however, when the inlet is a stratified flow with a biased gas-liquid two-phase distribution, the split flow is uniform The temperature drops significantly, seriously affecting the energy efficiency of the air conditioning system
In addition, since the flow pattern of the gas-liquid two-phase flow is significantly affected by gravity, the diversion performance of the distributor is greatly affected by the inclination angle of the distributor, resulting in higher installation requirements for the distributor

Method used

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  • Flow equalizing structure of distributor of refrigerating device and distributor
  • Flow equalizing structure of distributor of refrigerating device and distributor
  • Flow equalizing structure of distributor of refrigerating device and distributor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] like figure 1 As shown, the distributor 100 is a conical distributor, and a part of the inlet portion 1 of the distributor 100 is formed as a constricted section whose cross-section decreases toward the diverging port 13 . The flow equalizing structure 3 includes a first bobbin 31, the first bobbin 31 is arranged on the stepped surface parallel to the inlet 12 of the necking section, the first bobbin 31 and the peripheral wall of the inlet lumen 11 define a circumferential channel 4. In this embodiment, the first bobbin 31 is formed as a round straight pipe, and the center of the first bobbin 31 forms a main flow opening 35, and the diameter of the main flow opening 35 is consistent with the maximum diameter of the constricted section, the first The height of the bobbin 31 is not particularly limited. This current equalizing structure 3 has the simplest structure and low processing cost.

[0043] It should be noted that when there is no flow equalization structure 3 o...

Embodiment 2

[0045] like Figure 4 As shown, the dispenser 100 is also a conical dispenser, and the structure of the dispenser body is the same as that of Embodiment 1, and will not be repeated here. The difference is that in the second embodiment, the installation position of the current equalizing structure 3 is changed.

[0046] In this embodiment, the flow equalizing structure 3 includes an annular baffle 32 , which is arranged on the peripheral wall of the inlet lumen 11 below the constricted section, and defines a circumferential channel 4 with the peripheral wall of the inlet lumen 11 . The axial cross-section of the annular stopper 32 is formed in a right-angle shape. Under this structure, the splitting process and results of the gas-liquid two-phase flow flowing through the flow equalizing structure 3 are the same as those in Embodiment 1, and will not be repeated here.

[0047] In the description of the present invention, it should be understood that the orientation or position...

Embodiment 3

[0049] like Figure 5 As shown, the dispenser 100 is also a conical dispenser, and the structure of the dispenser body is the same as that of Embodiment 1, and will not be repeated here. The difference is that in the third embodiment, the installation position of the current equalizing structure 3 is changed.

[0050] In this embodiment, the flow equalizing structure 3 includes an annular baffle 32, the annular baffle 32 is arranged on the peripheral wall of the inlet lumen 11 above the necking section, and defines a circumferential channel 4 with the peripheral wall of the inlet lumen 11, The axial cross-section of the annular blocking piece 32 is formed in a quarter arc shape.

[0051] It should be noted that, in this case, the splitting process and results of the gas-liquid two-phase flow flowing through the flow equalizing structure 3 are the same as those in Embodiment 1, and will not be repeated here.

[0052] From the description of Embodiment 1 to Embodiment 3, it ca...

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PUM

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Abstract

The invention discloses a flow equalizing structure of a distributor of a refrigerating device and the distributor. The flow equalizing structure is suitable for being arranged in an inlet tube cavity of the distributor, a peripheral channel which plays a guiding role on a liquid phase refrigerant is formed on the flow equalizing structure, the peripheral channel is arranged along the central axis of the peripherally surrounding distributor, and the liquid phase refrigerant flows out from the peripheral channel in the 360 degree direction of the central axis after filling the peripheral channel and flows to the outlet tube cavities of the distributor. The flow equalizing structure disclosed by the invention can effectively eliminate influence of bias currents of gas and liquid phase refrigerants at the inlet of the distributor, so that the distributor can more uniformly divide the gas and liquid phase refrigerants.

Description

technical field [0001] The invention relates to the field of refrigeration technical equipment, in particular to a flow equalizing structure and a distributor of a distributor of a refrigeration device. Background technique [0002] Air-conditioning heat exchangers are generally composed of multiple sets of pipelines. If the gas-liquid flow of each pipeline is not uniform enough, the heat exchange area of ​​the pipeline with a small flow rate cannot be fully utilized, which will lead to a decrease in heat exchange efficiency and affect the energy efficiency of the entire refrigeration system. . [0003] The distributor is a common gas-liquid diversion component connecting the upstream refrigerant pipeline and the heat exchanger. Its function is to stably and evenly divide the gas-liquid two-phase flow. The distributor is an important part to ensure the efficient operation of the refrigeration system. At present, distributors mainly have several structural forms such as sock...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/00F25B41/42
CPCF25B41/00
Inventor 韩朋飞邱金波黄志橙颜利波刘志伟魏富党陈裕强
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD