CN205425939U

CN205425939U - Novel finned heat exchanger

Info

Publication number: CN205425939U
Application number: CN201620204606.1U
Authority: CN
Inventors: 邰红迎; 张长民; 李文旭
Original assignee: Shandong Modern Lai En Air Conditioner Equipment Co Ltd
Current assignee: Shandong Modern Lai En Air Conditioner Equipment Co Ltd
Priority date: 2016-03-17
Filing date: 2016-03-17
Publication date: 2016-08-03
Anticipated expiration: 2026-03-17

Abstract

The utility model discloses a novel fin heat exchanger, which comprises a tube plate, an air collecting pipe, a fin, a heat exchange tube, and a liquid collecting pipe. The upper and lower heat exchange tubes are arranged side by side to form a parallel heat exchange tube assembly. The two outlets of the heat exchange tubes on each layer are respectively connected with the gas collection pipe and the liquid collection pipe to form a heat exchange circuit. A row of tubes does not connect heat exchange tubes, and increases the heat exchange area of the middle part of the fins by reducing the number of heat exchange tubes on the fins. The utility model only needs to strengthen the heat transfer coefficients of the gas liquefaction two-phase area and the liquid evaporation two-phase area, that is It can greatly increase the heat transfer capacity. By simply increasing the fin area in the middle part, that is, increasing the heat transfer area in the two-phase area, the heat transfer capacity of the entire fin heat exchanger can be increased by 8-10%, and the heat transfer performance is enhanced. , and the structure is simple and practical.

Description

A kind of Novel fin heat exchanger

Technical field

This utility model relates to technical field of heat exchangers, a kind of Novel fin heat exchanger.

Background technology

nullAt present in HVAC Project Engineer system，The Main Function of finned heat exchanger is in refrigeration、In the case of heating，By the positive action of blower fan，Natural wind is allowed to pass through fin，And carry out heat exchange with heat transferring medium，The heat making heat transferring medium shifts，Finally realize the transfer of energy in system，When fin is as condenser，Cold-producing medium is when copper Bottomhole pressure，Part I is aerofluxus sensible heat transfer district，Part II is gas liquefaction two-phase section，Part III crosses cold-zone，Heat exchange is mainly reflected in the heat exchange of two-phase section，The two-phase section of fin is concentrated mainly on the mid portion of refrigerant flow circuit，When fin is as vaporizer，Cold-producing medium is when copper Bottomhole pressure，Part I is liquid sensible heat transfer district，Part II is that liquid evaporates two-phase section，Part III is gas superheat district，Heat exchange is mainly reflected in the heat exchange of two-phase section，The two-phase section of fin is concentrated mainly on the mid portion of refrigerant flow circuit，General air-conditioning is the most all by changing flap-type configuration increasing air disturbance，Strengthen heat exchanger performance，But often increase production cost，Heat exchange amount efficiency also ratio is relatively low.

Therefore, design a enhancing heat exchanger performance for overcoming the deficiency of above-mentioned technology, a kind of Novel fin heat exchanger that heat exchange efficiency is high, inventor's problem to be solved just.

Utility model content

For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of Novel fin heat exchanger, its simple in construction, is improved the heat exchange area of two-phase section by the simple fin area increasing mid portion, improves heat exchange amount, strengthens heat exchanger performance.

This utility model solves its technical problem and be the technical scheme is that a kind of Novel fin heat exchanger, it includes tube sheet, discharge, fin, heat exchanger tube, collector tube, equipped with discharge, collector tube on described tube sheet, multiple described heat exchanger tubes are upper and lower is arranged side by side formation parallel heat exchanging pipe assembly, two of the heat exchanger tube of every layer export the composition heat-exchanging loop that is connected respectively with described discharge and collector tube, in the middle of in described fin, a comb is not exchanged heat pipe, increases the heat exchange area of fin mid portion by reducing the heat exchanger tube of string on fin.

The beneficial effects of the utility model are:

1, this utility model simple in construction, improves the heat exchange area of two-phase section by the simple fin area increasing mid portion, improves heat exchange amount, strengthens heat exchanger performance.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation.

Fig. 2 is Fig. 1 left view.

Fig. 3 is Fig. 1 right view.

Description of reference numerals: 1-tube sheet；2-discharge；3-fin；4-collector tube；5-heat exchanger tube.

Detailed description of the invention

Below in conjunction with specific embodiment, this utility model is expanded on further, it should be appreciated that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model.In addition, it is to be understood that after having read the content that this utility model is lectured, this utility model can be made various changes or modifications by those skilled in the art, these equivalent form of values also fall within application appended claims limited range.

Seeing Fig. 1 is this utility model structural representation, seeing Fig. 2 is Fig. 1 left view, seeing Fig. 3 is Fig. 1 right view, this structure one Novel fin heat exchanger, it includes tube sheet 1, discharge 2, fin 3, collector tube 4, heat exchanger tube 5, equipped with discharge 2 on described tube sheet 1, collector tube 4, on multiple described heat exchanger tubes 5, under be arranged side by side formation parallel heat exchanging pipe assembly, two of the heat exchanger tube 5 of every layer export the composition heat-exchanging loop that is connected respectively with described discharge 2 and collector tube 4, in the middle of in fin 3, a comb is not exchanged heat pipe 5, the heat exchange area of fin 3 mid portion is increased by reducing the heat exchanger tube 5 of string on fin 3.

Finned heat exchanger heat exchange is concentrated mainly on two-phase section, this utility model only need to strengthen gas liquefaction two-phase section and the coefficient of heat transfer of liquid evaporation two-phase section, heat exchange amount can be greatly improved, by simple fin 3 area increasing mid portion, i.e. increase the heat exchange area of two-phase section, the fin of such as five combs 3 string four row's heat exchanger tubes 5, a middle comb is not exchanged heat pipe 5, reach to improve the heat exchange area of two-phase section, improve heat exchange amount, fin cost accounts for the 15% of totle drilling cost, the fin cost of increase part accounts for less than the 4% of whole finned heat exchanger, this mode can improve the heat exchange amount 8～10% of whole finned heat exchanger, substantially increase heat exchange amount, enhance heat exchange property, and simple in construction, there is practicality.

Claims

1. a Novel fin heat exchanger, it includes tube sheet, discharge, fin, heat exchanger tube, collector tube, equipped with discharge, collector tube on described tube sheet, multiple described heat exchanger tubes are upper and lower is arranged side by side formation parallel heat exchanging pipe assembly, two of the heat exchanger tube of every layer export the composition heat-exchanging loop that is connected respectively with described discharge and collector tube, it is characterized in that: in the middle of in described fin, a comb is not exchanged heat pipe, increase the heat exchange area of fin mid portion by reducing the heat exchanger tube of string on fin.