CN101000186A

CN101000186A - High efficient small fin case tube heat exchanger

Info

Publication number: CN101000186A
Application number: CN 200610064544
Authority: CN
Inventors: 方沛明
Original assignee: GUANGDA REFRIGERATING CO Ltd DONGGUAN
Current assignee: GUANGDA REFRIGERATING CO Ltd DONGGUAN
Priority date: 2006-12-27
Filing date: 2006-12-27
Publication date: 2007-07-18

Abstract

The invention discloses a high efficiency small fin shell pipe heat exchanger, comprising shell pipe and several copper pipes arranged in the shell pipe along the shell pipe axis, where each copper pipe is separately equipped at intervals with several small fins and inserted into the corresponding through holes on the small fins and fixed with these small fins, the small fin is separated into flat and ripple plates, the small fin is equipped with punch seam, hole flanging, shutter or pits. And it increases heat exchange area, able to effectively raise heat exchange efficiency. The bottom of the shell pipe can be equipped with at least a row of several smooth copper pipes without small fins or outer screw threaded copper pipes so as to increase supercooling of refrigerant.

Description

High efficient small fin case tube heat exchanger

Technical field

The present invention relates to a kind of heat exchanger, more particularly, relate to a kind of high efficient small fin case tube heat exchanger that in refrigeration air-conditioner is used, can be made into condenser.

Background technology

Traditional shell and tube heat exchanger is nested together by the pipe of two kinds of different-diameters and forms, it is applied to refrigeration plant, especially refrigeration air-conditioner unit, but the version of traditional shell and tube heat exchanger is: be with many copper pipes in a package cover, because heat exchange is to carry out between the cold-producing medium in described many copper pipe outer surfaces and package, thereby the area of heat exchange is by the decision of the area of described many copper pipe outer surfaces, have following defective: the heat exchange area of certain copper pipe quantity is less in the package, heat exchanger time is shorter, and heat conduction efficiency is lower.Efficient as needs enhancing heat exchange need be provided with more copper pipe in package, cause the interior copper pipe quantity of package too much, causes the increase of production cost, is unfavorable for reducing cost.

Summary of the invention

The objective of the invention is to overcome above-mentioned defective, a kind of heat exchanger effectiveness height is provided, and can effectively reduce the high efficient small fin case tube heat exchanger of copper pipe quantity in the package.

For achieving the above object, technical scheme provided by the invention is as follows: construct a kind of high efficient small fin case tube heat exchanger, comprise package, be axially disposed within some copper pipes in the package along package, be arranged at intervals with some little fins respectively on each root copper pipe in described housing, the little copper pipe of each root be located in respectively with its corresponding some little fins on through hole in fixedly connected with these some little fins, little fin is divided into plain film and corrugated plate, goes back calking on described little fin, towards the flange hole, towards shutter or towards pit.

Described some little fins that are arranged on each root copper pipe are to be distributed on the lateral wall of this copper pipe and with the lateral wall of this copper pipe to fixedly connected; These some little fins are by the moulding of sheet metal punch process.

The edge shape of described little fin is one of following shape: circular, circle lacks shape, quadrangle or polygon.

The citation form of described little fin can be plain film or corrugated plate.

For further strengthening the effect of heat exchange, described little fin can be processed into the calking sheet.

For further strengthening the effect of heat exchange, described little fin can be processed into flange hole sheet.

For further strengthening the effect of heat exchange, described little fin can be processed into louver.

For further strengthening the effect of heat exchange, described little fin can be processed into the pit sheet.

The beneficial effect of high efficient small fin case tube heat exchanger of the present invention is, by being arranged at intervals with some little fins respectively on each the root copper pipe in housing, the little copper pipe of each root be located in respectively with its corresponding some little fins on through hole in fixedly connected with these some little fins, little fin is divided into plain film and corrugated plate, on described little fin, also be provided with calking, flange hole, shutter or pit, the area of heat exchange can be increased, the efficient of heat exchange can be effectively improved.Can also arrange in described package bottom some of at least one rows not with the smooth copper of little fin or external screw thread copper pipe to increase the degree of supercooling of cold-producing medium.Thereby have a following advantage:

1, little fin is placed on the whole copper pipes outside in the package, forms copper pipe bundle with little fin, more much bigger with the copper pipe bundle heat exchange area of little fin on equal copper pipe length than single copper pipe, increased heat exchange area in other words.

2, little fin is placed on the outside of the copper pipe in the package, forms copper pipe, produce the cold-producing medium turbulent flow, prolonged heat exchanger time, improved heat conduction efficiency with little fin.

3, the heat exchanger of identical heat exchange area, small fin case tube heat exchanger is saved copper pipe than traditional external screw thread case tube heat exchanger.

4, the form of little fin can be plain film or corrugated plate, and the calking that distributes on little fin, flange hole, pit or blind shaped bar seam, can effectively improve heat exchange area.

5, can also arrange some not finned smooth copper of at least one row or external screw thread copper pipe degree of supercooling in described package bottom, thereby improve the refrigeration of whole system with the increase cold-producing medium.

Below in conjunction with drawings and Examples high efficient small fin case tube heat exchanger of the present invention is described further:

Description of drawings

Fig. 1 is a high efficient small fin case tube heat exchanger general structure view of the present invention;

Fig. 2 is the partial sectional view of Fig. 1;

Fig. 3 is the A-A cutaway view of Fig. 1;

Fig. 4 is that the little fin of high efficient small fin case tube heat exchanger of the present invention is when being corrugated plate and calking and the local amplification plan view of little copper pipe syndeton;

Fig. 5 is the partial enlarged view of B among Fig. 4;

Fig. 6 is that the little fin of high efficient small fin case tube heat exchanger of the present invention is a plain film and during towards the flange hole and the local amplification plan view of little copper pipe syndeton;

Fig. 7 is that high efficient small fin case tube heat exchanger of the present invention is furnished with some of rows not with the partial sectional view of the little copper pipe of little fin;

Fig. 8 is the partial enlarged view of C among Fig. 6.

The specific embodiment

Below the most preferred embodiment of high efficient small fin case tube heat exchanger of the present invention, therefore do not limit protection scope of the present invention.

With reference to Fig. 1, Fig. 2, Fig. 3, a kind of high efficient small fin case tube heat exchanger is provided, comprise package 1, along the some little copper pipe 9 of shell 1 tubular axis in being arranged on package 1, the little copper pipe 9 of each root that is provided with at interval in described package 1 is located in respectively with it in through hole on corresponding some little fins and fixes with these some little fins, the edge shape of described winglet sheet 3 is one of row shapes: circle, circle lacks shape, quadrangle or polygon, offer successively respectively on these some winglet sheets 3 and little copper pipe 9 corresponding through holes, the little copper pipe 9 of each root be located in respectively with its corresponding some winglet sheets 3 on through hole in fixedly connected with these some winglet sheets 3, the form of described winglet sheet 3 is plain film or corrugated plate, for further strengthening the effect of heat exchange, on the plain film of described winglet sheet 3 or corrugated plate, calking is set, flange through hole or shutter or pit, make cold-producing medium cause turbulent flow, prolong heat exchanger time, improved heat conduction efficiency.

Described some winglet sheets 3 that are arranged on the little copper pipe 9 are to be distributed on the little copper pipe 9, and fixedly connected with little copper pipe 9, these some winglet sheets 3 are by the moulding of metal aluminium flake punch process.

With reference to Fig. 4, Fig. 5, for further strengthening the effect of heat exchange, the form of described winglet sheet 3 is a corrugated plate, and described winglet sheet 3 is provided with calking 15, and cold-producing medium has caused turbulent flow when flowing through this calking, has improved heat conduction efficiency.

With reference to Fig. 6, Fig. 8, for further strengthening the effect of heat exchange, the form of described winglet sheet 3 is a plain film, and described winglet sheet 3 is provided with flange hole 8, and cold-producing medium has caused turbulent flow when flowing through this flange hole 8, has improved heat conduction efficiency.

Described winglet sheet 3 can be processed into louver.

With reference to Fig. 7, the edge shape of described little fin is that circle lacks shape or polygon, between little fin and package bottom, can also arrange some of at least one rows not with the smooth copper of little fin or external screw thread copper pipe 14 to increase the degree of supercooling of cold-producing medium, thereby improve the refrigeration of whole refrigeration system, described copper pipe 14 can be smooth or the external screw thread copper pipe.

The pit of coming out through punching press also can be set, to increase the area of heat exchange on described winglet sheet 3.

Use high efficient small fin case tube heat exchanger of the present invention, the little copper pipe 9 of each root in the package 1 is provided with winglet sheet 3, water flows in little copper pipe 9, refrigerant flows in package 1, whole heat exchanger is made shell-tube type, water enters from water inlet 10, last delivery port 11 flows out, and cold media gas enters package 1 from import 12, and last refrigerant flows out from exporting 13, according to like this, cold water is gone from bottom to top, refrigerant is gone from the top down, and both form sufficient adverse current, and the efficient of heat exchange is greatly improved.The quantity of the little copper pipe 9 in the package 1 is unrestricted, and the quantity of little copper pipe 9 is to depend on the size of refrigerating capacity and fixed.

Claims

1, a kind of high efficient small fin case tube heat exchanger, comprise package, be axially disposed within some copper pipes in the package along package, it is characterized in that, be arranged at intervals with some little fins respectively on each root copper pipe in described housing, the little copper pipe of each root be located in respectively with its corresponding some little fins on through hole in fixedly connected with these some little fins.

2, high efficient small fin case tube heat exchanger according to claim 1 is characterized in that, described to be arranged on each root copper pipe some little fins be to be distributed on the lateral wall of this copper pipe and with the lateral wall of this copper pipe to fixedly connected.

3, high efficient small fin case tube heat exchanger according to claim 1 is characterized in that, the edge shape of described little fin is one of following shape: circular, circle lacks shape, quadrangle or polygon.

4, high efficient small fin case tube heat exchanger according to claim 3 is characterized in that, the form of described little fin is plain film or corrugated plate.

5, high efficient small fin case tube heat exchanger according to claim 4 is characterized in that: described little fin is the calking sheet.

6, high efficient small fin case tube heat exchanger according to claim 4 is characterized in that: described little fin is a flange hole sheet.

7, high efficient small fin case tube heat exchanger according to claim 4 is characterized in that: described little fin is a louver.

8, high efficient small fin case tube heat exchanger according to claim 4 is characterized in that, also is intervally distributed with the pit that punching press is come out on the described little fin.

9, high efficient small fin case tube heat exchanger according to claim 1 is characterized in that, can also arrange between described little fin and the package bottom that some of at least one rows are not with the smooth copper or the external screw thread copper pipe of little fin.