CN202581946U

CN202581946U - Uniform liquid distribution evaporator

Info

Publication number: CN202581946U
Application number: CN 201220176295
Authority: CN
Inventors: 顾有三; 洪忠
Original assignee: Jiangsu Yang'an Group Yangzhou Even Refrigeration Co Ltd
Current assignee: Jiangsu Ten Thousand Energy Saving Polytron Technologies Inc
Priority date: 2012-04-24
Filing date: 2012-04-24
Publication date: 2012-12-05
Anticipated expiration: 2022-04-24

Abstract

The utility model relates to a uniform liquid distribution evaporator, which aims to solve the problems of insufficient refrigerant vaporization, poor heat transfer performance and low working efficiency due to non-uniform liquid distribution in the evaporator in the prior art. The evaporator comprises a shell; a pipe plate is arranged at each of two ends of the shell; the pipe plates are connected through a plurality of evaporation pipes; an end cover is arranged at each of two ends of the shell; a liquid inlet pipe is connected to the end cover at one end; a distribution plate is arranged in the end cover at the end corresponding to the liquid inlet pipe; the distribution plate is provided with a plurality of through holes in the radial direction; distribution pipes are expanded and fixed in through holes in a one-to-one correspondence mode; and the distribution pipes correspond to the evaporation pipes one by one and are extended and inserted into the evaporation pipes. Through the evaporator, uniform distribution of a gas-liquid refrigerant mixture can be realized; and by fully using the evaporation pipes on the upper part of the evaporator, the refrigerant vaporization process is sufficient, the heat transfer performance and the working efficiency of the evaporator are effectively improved, and the energy-saving effect can be improved by 5 to 15 percent compared with the conventional evaporator.

Description

A kind of evaporimeter of even separatory

Technical field

The utility model relates to a kind of heat exchanger, particularly a kind of evaporimeter of even separatory.

Background technology

Critical piece in the refrigerated air-conditioning system comprises: compressor, oil eliminator, condenser, reservoir, expansion valve, pipeline and control panels such as evaporimeter.Its kind of refrigeration cycle process is that cold-producing medium and the refrigeration oil gas phase mixture of high pressure superheater that compressor is discharged passes through oil eliminator and carry out after gas-liquid two-phase separates; Cold-producing medium gets in the condenser again and is condensed into high-pressure sub-cooled liquid through the heat absorption of normal temperature refrigerating medium; Suck through in evaporimeter, being vaporized into the low area overheat steam machine that is compressed through the heat release of normal temperature refrigerating medium again after the expansion valve throttling, so reciprocation cycle realizes process of refrigerastion.Wherein evaporimeter is to the energy-saving and cost-reducing central role that plays key of whole refrigeration air-conditioner.

A kind of evaporimeter is arranged in the prior art; Comprise housing, offer the outlet of refrigerating medium import and refrigerating medium on the sidewall of housing, the housing two ends are respectively arranged with tube sheet; Link to each other through some evaporation tubes between the tube sheet; The housing two ends are equipped with end cap, wherein are connected with the cold-producing medium feed tube on the end cap of an end, and cold-producing medium is in feed tube injects evaporation tube.Because cold-producing medium is a liquid-vapor mixture, be prone to the evaporation tube inner refrigerant and distribute uneven problem, gas-phase space occupies the top evaporation tube, causes the top evaporation tube not make full use of, and heat transfer property descends, and influences evaporator operation efficient.

The utility model content

In order to overcome deficiency of the prior art, the utility model provides a kind of evaporimeter of even separatory, and it is not only simple in structure, and is easy to make, and can realize the even separatory of cold-producing medium, effectively improves evaporimeter heat exchange property and operating efficiency.

The purpose of the utility model is achieved in that a kind of evaporimeter of even separatory; Comprise housing, the housing two ends are respectively arranged with tube sheet, link to each other through some evaporation tubes between the tube sheet; The housing two ends are equipped with end cap; Wherein be connected with feed tube on the end cap of an end, be provided with distribution plate in the end cap of the corresponding end of feed tube, radially offer some through holes on the said distribution plate; Corresponding one by one expanded joint is fixed with distributing pipe in the said through hole, and said distributing pipe inserts in the evaporation tube with corresponding one by one also extension of evaporation tube.

During the utility model work, cold-producing medium injects in the end cap cavity through outside feed tube, evenly mixes after high-pressure injection gets in each distributing pipe; In the inflow evaporation tube, simultaneously, the refrigerating medium of high temperature is in the refrigerating medium import gets into evaporator shell; After heat exchange took place cold-producing medium and refrigerating medium heat, the cold-producing medium heat absorption of fully vaporizing made the refrigerant temperature reduction; The refrigerating medium that temperature is lower pumps from the refrigerating medium outlet, realizes the cold conveying through the outer loop passage, and so reciprocation cycle realizes process of refrigerastion.Compared with prior art; The utility model has been installed distributing pipe at the inlet place of evaporation tube, and the bore of distributing pipe is less than the heat exchanger tube bore, and the flow error that therefore injects the cold-producing medium of every distributing pipe reduces relatively; Thereby realize the uniform distribution of cold-producing medium; Fully use the top evaporation tube, compare with conventional evaporator and can improve energy-saving effect 5-15%, effectively improved evaporimeter heat exchange property and operating efficiency; In addition, the utlity model has advantage simple in structure, easy to make, with low cost, have market development prospect preferably and dissemination.

Further improvement as the utility model; Be provided with sealing joint strip between said distribution plate periphery and the end cap; Because spraying through external high pressure, cold-producing medium gets in each distributing pipe; Install the air-tightness that sealing joint strip can fully guarantee evaporimeter additional,, increase work efficiency to realize good homogeneous separatory effect.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the structural representation of distribution plate among Fig. 1.

Wherein, 1 housing; 2 tube sheets; 3 evaporation tubes; 4 end caps; 5 feed tubes; 6 distribution plates; 7 distributing pipes; 8 sealing joint strips; 9 through holes.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

As shown in Figure 1, a kind of evaporimeter of even separatory comprises housing 1; Housing 1 two ends are respectively arranged with tube sheet 2, link to each other through some evaporation tubes 3 between the tube sheet 2, and housing 1 two ends are equipped with end cap 4; Wherein be connected with feed tube 5 on the end cap 4 of an end; Be provided with distribution plate 6 in the end cap 4 of feed tube 5 corresponding ends, radially offer some through holes 9 on the distribution plate 6, corresponding one by one expanded joint is fixed with distributing pipe 7 in the through hole 9; Distributing pipe 7 inserts in the evaporation tube 3 with corresponding one by one also extension of evaporation tube 3, is provided with sealing joint strip 8 between distribution plate 6 peripheries and the end cap 4.As shown in Figure 2, be the structural representation of the utility model distribution plate.

The utility model is not limited to the foregoing description; On the basis of the disclosed technical scheme of the utility model; Those skilled in the art is according to disclosed technology contents; Do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in the protection domain of the utility model.

Claims

1. the evaporimeter of an even separatory comprises housing, and the housing two ends are respectively arranged with tube sheet; Link to each other through some evaporation tubes between the tube sheet, the housing two ends are equipped with end cap, wherein are connected with feed tube on the end cap of an end; It is characterized in that, be provided with distribution plate in the end cap of the corresponding end of feed tube, radially offer some through holes on the said distribution plate; Corresponding one by one expanded joint is fixed with distributing pipe in the said through hole, and said distributing pipe inserts in the evaporation tube with corresponding one by one also extension of evaporation tube.

2. the evaporimeter of a kind of even separatory according to claim 1 is characterized in that, is provided with sealing joint strip between said distribution plate periphery and the end cap.