Distributor internally provided with jet flow hole plate

Abstract

The invention relates to the technical field of distributors for cooling and air conditioners, in particular to a distributor internally provided with a jet flow hole plate. A center jet flow hole plate and a Venturi distributor are adopted for an existing distributor for cooling and air conditioners for jet distribution. According to the center jet flow hole plate, equalization of the refrigerant flow distributed to each branch is poor; in a non-vertical installation state, heat exchange efficiency becomes poorer; and the flowing speed of a refrigerant is sharply increased, and the distributor generates high liquid impact noise. According to the Venturi distributor, the molded line processing cost of an internal flowing channel is high; in a non-vertical installation state, the refrigerant deviated flow influence caused by refrigerant gravity also exists; and the axial size is large. A main body of the distributor internally provided with the jet flow hole plate is provided with an inlet end and an outlet end, an inner cavity in the outlet end of the main body is provided with the jet flow hole plate, and the jet flow hole plate is provided with a plurality of punching narrow seams and flow guide blades. By means of the distributor, the heat exchange effect of a whole air conditioner system is obviously improved, noise is greatly lowered, the production cost is lowered, and the distributor can be installed in any direction.

Description

technical field [0001] The invention relates to the technical field of distributors for refrigeration and air conditioning, in particular to a distributor with a built-in jet orifice. Background technique [0002] Distributors used in refrigeration and air-conditioning pipeline systems should achieve a uniform and equal amount of liquid supply to the evaporator after the gas-liquid two-phase refrigerant is fully mixed, but in actual operation, gas-liquid two-phase mixing often occurs. Uniform and unequal flow of refrigerant entering each branch, both of which cause the difference in the liquid supply of each branch, which affects the heat transfer performance of the evaporator, and then affects the working performance of the entire refrigeration system. Therefore, the performance of the distributor is mainly reflected in two aspects: distribution uniformity and noise. [0003] Distributors for refrigeration and air conditioning currently on the market generally use center j...

AI Technical Summary

Problems solved by technology

[0004] like Image 6 The distributor shown uses a central jet orifice for spray and agitation distribution. The main disadvantages of this method are: (1) Since the gas-liquid two-phase refrigerant mixed fluid has not been effectively sorted out, the distribution of each branch The refrigerant flow uniformity is not good, which affects the heat exchange effect of the entire air conditioning system; (2) When the distributor is installed in a non-vertical state, it is difficult to achieve multi-channel distribution due to the gravity of the liquid refrigerant. Each branch is evenly distributed or distributed according to the debugging state, so that some heat exchange tubes do not match the refrigerant flow rate, and the heat transfer efficiency becomes worse; (3) The gas-liquid two-phase refrigerant entering the distributor at high pressure and high speed first passes through throttling Due to the sudden shrinkage of the small hole, the flow rate of the refrigerant increases sharply, and the high-pressure and high-speed refrigerant liquid column directly impacts the cavity, causing the distributor to generate a large liquid impact noise

But the main disadvantages of this method are: (1) It is difficult to process the profile of the internal flow channel, and the cost is high; (2) When the distributor is installed in a non-vertical state, there is also the influence of the refrigerant bias flow caused by the gravity of the refrigerant ; (3) Limited by the structure, the axial size of the Venturi distributor is relatively large

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