CN203744605U

CN203744605U - Air conditioner heat exchanger with foam metal fins

Info

Publication number: CN203744605U
Application number: CN201420036440.8U
Authority: CN
Inventors: 万忠民; 郑祖义; 王义得; 许文明; 曾健文
Original assignee: Guangdong Chigo Air Conditioning Co Ltd
Current assignee: Guangdong Chigo Air Conditioning Co Ltd
Priority date: 2014-01-21
Filing date: 2014-01-21
Publication date: 2014-07-30
Anticipated expiration: 2024-01-21

Abstract

The utility model relates to an air conditioner heat exchanger with foam metal fins. The air conditioner heat exchanger comprises the fins and at least four U-shaped elbows inserted into the fins in parallel, wherein the fins are made of foam metal, each U-shaped elbow comprises two free ends and a curve portion located between the two corresponding free ends, the free ends extend in parallel in the same direction, the end ports of the free ends of every two adjacent U-shaped elbows are connected through bends, the end ports of one free ends of two adjacent U-shaped elbows in the middle are connected with a U-shaped pipe at one end of the heat exchanger through first spanning pipes, the end ports of the other free ends are connected with a bend between a U-shaped pipe, connected with the exhaust port of a compressor, at the other end in the heat exchanger and the end ports of the free ends through second spanning pipes; the end of a bend between the first spanning pipes is provided with an outlet. According to the air conditioner heat exchanger, by means of the spanning pipe structures and the fin structures distributed at intervals in the U-shaped elbows, heat exchange efficiency of the heat exchanger can be effectively improved.

Description

A kind of air-condition heat exchanger of foam metal fin

Technical field

The utility model relates to air-conditioning technical field, refers more particularly to a kind of air-condition heat exchanger of foam metal fin.

Background technology

Fin-tube heat exchanger is a kind of heat exchanger form extensively adopting at industrial circles such as refrigeration, air-conditioning, chemical industry.The traditional heat exchangers that existing domestic air conditioning adopts is generally shutter, and heat exchanger is comprised of metal fin and metal tube, the parallel distribution of metal fin that multi-disc is identical, and a plurality of metal tubes are parallel through all metal fins.During work, cold-producing medium flows in metal tube, and cold-producing medium evaporates therein and becomes gas, and the air that is flowing in metal fin transfers heat to cold-producing medium, and air themperature reduces, thus the refrigeration of realization.

But its metal fin heat exchange area of traditional venetian blind type air-condition heat exchanger is effective, and power density is less than normal, and air turbulence effect is bad, and the coefficient of heat transfer is not high, cause the coefficient of heat transfer of whole air-condition heat exchanger not reach desirable requirement.

Foam metal is as the very large porous material of a kind of specific area (surface area in unit volume), can effectively strengthen heat transfer effect, and due to foam metal complex structure, when cross-ventilation, can effectively utilize the 3 D complex of air-flow to flow, increase the disturbance of air current flow, increase turbulent flow, improve the coefficient of heat transfer.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of foam metal that adopts as the air-condition heat exchanger of fin, the U-shaped pipe port in heat exchanger arranges that by adopting across pipe connected mode and fin class interval realization improves the coefficient of heat transfer of heat exchanger and the heat exchange efficiency of heat exchanger fin.

For achieving the above object, technical scheme provided by the utility model is: a kind of air-condition heat exchanger of foam metal fin, comprise the fin made by foam metal and the U-shaped bend pipe at least four described fins of parallel insertion, described U-shaped bend pipe comprises two free ends and the bend between this two free end that cocurrent and parallel extends, between this adjacent U-shaped pipe free end port, by elbow, be connected, in the middle of being wherein positioned at, two adjacent U-shaped pipe one free end ports are connected with the U-shaped pipe in heat exchanger one end across pipe by first, another free end port is connected with the elbow between the U-shaped pipe of the other end being connected with exhaust outlet of compressor in heat exchanger and described free end port across pipe by second, first across pipe between in elbow ends on be also provided with outlet.

Further, described fin is many groups interval to be arranged, and by brace, is fixedly connected with between adjacent fins group.

Further, described fins set is that interval is vertically arranged or a kind of in horizontally disposed of interval.

Further, the elbow that described end is provided with outlet is two, and this two elbow lays respectively at described first across two ends in the interior elbow between pipe.

Further, on described fin, offer for reducing the regular through hole of air flow resistance.

The utility model is after having adopted such scheme, its great advantage is by adopting foam metal as the fin of heat exchanger, can improve the coefficient of heat transfer of heat exchanger, utilize in U-shaped pipe across tubular construction, organize the heat exchange efficiency that fin structure spaced apart can effectively improve heat exchanger more, the flow resistance simultaneously meeting with when the metal fin internal flow in order to reduce fluid, the utility model also by offering the regular through hole of accelerating fluid-flow rate on metal fin, thereby the flowing velocity of fluid is accelerated, improved the heat exchange efficiency of heat exchanger.

Accompanying drawing explanation

Fig. 1 is metal fin broken section structural representation of the present utility model.

Fig. 2 is the sectional structure schematic diagram of example one of the present utility model.

Fig. 3 is the sectional structure schematic diagram of example two of the present utility model.

The specific embodiment

Below in conjunction with specific embodiment, the utility model is described in further detail:

Embodiment mono-:

Referring to accompanying drawing 1 to shown in accompanying drawing 2, the air-condition heat exchanger of this foam metal fin comprises that in fin 1 that the foam metal that consists of copper or aluminium is made and the U-shaped bend pipe 2(figure at least four described fins 1 of parallel insertion be ten), this U-shaped bend pipe 2 comprises two free end 2-1 and the bend 2-2 between this two free end 2-1 that cocurrent and parallel extends, U-shaped pipe two free end 2-1 are through described fin 1, and adjacent U-shaped pipe two free end 2-1 ports are connected by elbow 3, the two adjacent U-shaped pipe one free end ports 4 that are wherein positioned at centre position are connected with the U-shaped pipe 7 in heat exchanger one end across pipe 6 by first, another free end port 5 is connected with the elbow between the U-shaped pipe 8 of the other end being connected with exhaust outlet of compressor in heat exchanger and described free end port 4 across pipe 9 by second, first across pipe 6 between in elbow ends on be also provided with two outlets 10-1,10-2, two elbows that this top is provided with two outlet 10-1,10-2 be respectively first across pipe 6 between in elbow at a distance of two elbow 3-1,3-2 farthest.

In this embodiment, fin 1 is divided into five groups of vertical equi-spaced apart distributions, between each adjacent set, by one section of aluminium brace 11, is welded and fixed.

When air conditioner refrigerating, the refrigerant gas of discharging from compressor exhaust pipe enters into heat exchanger through U-shaped pipe 8 ports of heat exchanger, is connected and is arranged in two of centre position U-shaped pipe two free ends 4,5 that are connected by first, across pipe 6, second, across managing 9, to be connected respectively with port 7, the elbow 13 of heat exchanger respectively between adjacent U-shaped pipe two free end 2-1 ports by elbow.Therefore it forms head and the tail and communicates like the passage of serpentine coil formula.Cold-producing medium is entered by U-shaped pipe 8 ports of heat exchanger, and when it arrives at the second junction across pipe 9 and elbow 13, cold-producing medium is just divided into two strands, respectively referred to as first strand of cold-producing medium and second strand of cold-producing medium.Wherein first strand of cold-producing medium continues upwards to flow along U-shaped bend pipe, through free end port 4, enter first across pipe 6 afterwards, subsequently along first across pipe the 6 U-shaped pipes 7 in inflow heat exchanger one end, this first strand of cold-producing medium flows and flows out from outlet 10-1 along U-shaped bend pipe, wherein in the U-shaped pipe flow process of this first strand of cold-producing medium in heat exchanger, the air in first strand of cold-producing medium and heat exchanger carries out heat exchange; Second another strand across pipe 9 and the junction of elbow 13 second strand of cold-producing medium along second across pipe 9, free end 5 ports enter into heat exchanger, this second strand of cold-producing medium carries out heat exchange with the first strand of cold-producing medium of part that flow to elbow 3-2 through elbow 3-1, from outlet 10-2, flow out afterwards, this kind of flow of refrigerant mode makes cold-producing medium more abundant in the process with air heat exchange.

Air in this heat exchanger is in the process of heat exchange, scrambling due to foam metal structure, air is not only two-dimensional flow therein, also has the cross flow one between foam metal micropore, this increases the disturbance of gas, be conducive to fully contacting of air and foam metal fin, strengthen heat exchange efficiency.But the while is due to the structure irregularity of foam metal fin, air flow resistance therein also can increase, this has also affected heat exchange efficiency simultaneously, the form that in this heat exchanger, foam metal fin 1 adopts five groups of equi-spaced apart to arrange for this reason, by the gap between fin 1 each group, can effectively alleviate the defect that this body structure of foam metal fin produces, the heat exchange efficiency of heat exchanger is improved, simultaneously, in order further to improve the heat exchange efficiency of heat exchanger, accelerate the mobility of fluid in foam metal fin, on each fin 1, also offer the regular through hole 1-1 of the flow resistance of fluid when reducing its inner fluid heat exchange, in the present embodiment, this rule through hole 1-1 is circular hole, certainly can also be the through hole of other shape, not to be limited.

Embodiment bis-:

Shown in accompanying drawing 3, the difference of the present embodiment and embodiment mono-is that the foam metal fin 1 of heat exchanger in this embodiment is that four groups and arrangement form are that horizontal interval is arranged.

The examples of implementation of the above are only the preferred embodiment of the utility model, not with this, limit practical range of the present utility model, therefore the variation that all shapes according to the utility model, principle are done all should be encompassed in protection domain of the present utility model.

Claims

1. the air-condition heat exchanger of a foam metal fin, it is characterized in that: comprise the fin (1) made by foam metal and the U-shaped bend pipe (2) at least four described fins of parallel insertion (1), described U-shaped bend pipe (2) comprises two free ends (2-1) that cocurrent and parallel extends and is positioned at the bend (2-2) between this two free end (2-1), between adjacent U-shaped pipe free end (2-1) port, by elbow (3), be connected, in the middle of being wherein positioned at, two adjacent U-shaped pipe one free end ports (4) are connected with the U-shaped pipe in heat exchanger one end (7) across pipe (6) by first, another free end port (5) by second across pipe (9) with to be arranged in the U-shaped pipe of the other end (8) and the elbow between described free end port (4) that heat exchanger is connected with exhaust outlet of compressor connected, be positioned at first across being also provided with outlet on the elbow ends between pipe (6).

2. the air-condition heat exchanger of a kind of foam metal fin according to claim 1, is characterized in that: described fin (1) is many groups interval to be arranged, and by brace (11), is fixedly connected with between adjacent fins group.

3. the air-condition heat exchanger of a kind of foam metal fin according to claim 2, is characterized in that: described fins set is that interval is vertically arranged or a kind of in horizontally disposed of interval.

4. according to the air-condition heat exchanger of a kind of foam metal fin described in claim 1 or 2 or 3, it is characterized in that: the elbow that described end is provided with outlet is two (3-1,3-2), and this two elbow (3-1,3-2) lay respectively at described first across pipe two ends in the interior elbow between (6).

5. according to the air-condition heat exchanger of any foam metal fin described in claims 1 to 3, it is characterized in that: on described fin (1), offer for reducing the regular through hole (1-1) of its inner fluid flow resistance.

6. the air-condition heat exchanger of a kind of foam metal fin according to claim 4, is characterized in that: on described fin (1), offer for reducing the regular through hole (1-1) of its inner fluid flow resistance.