CN201503231U

CN201503231U - Compact separation type heat pipe exchanger

Info

Publication number: CN201503231U
Application number: CN2009201105132U
Authority: CN
Inventors: 侯增祺; 侯*祺; 侯锡祺
Original assignee: SUZHOU CANGLANG ENERGY EQUIPMENT CO Ltd
Current assignee: SUZHOU CANGLANG ENERGY EQUIPMENT CO Ltd
Priority date: 2009-07-31
Filing date: 2009-07-31
Publication date: 2010-06-09
Anticipated expiration: 2019-07-31

Abstract

The utility model relates to a compact separation type heat pipe exchanger belonging to the technical field of radiation cooling equipment. The heat pipe exchanger comprises an evaporator and a condenser. The evaporator is arranged at the lower part, and the condenser is arranged at the upper part. The evaporator and the condenser respectively consists of a plurality of flat pipes, a plurality of fins, an upper connecting box and a lower connecting box. The upper and lower ends of the plurality of flat pipes are respectively communicated with the upper and lower connecting boxes. The fins are fixed on the flat pipes to form a plate fin type structure. The upper connecting boxes of the evaporator and the condenser are mutually communicated by a steam ascending pipe, and the lower connecting boxes of the evaporator and the condenser are mutually communicated by a liquid return pipe. The radiating capability of the heat exchanger is improved, and the heat efficiency is high. The arrangement of the entire heat exchanger is convenient, and the evaporator and the condenser can be easily sealed.

Description

A kind of close-coupled separate heat pipe heat exchanger

Technical field

The utility model relates to a kind of close-coupled separate heat pipe heat exchanger, belongs to heat radiation cooling device technical field.

Background technology

Along with the high speed development of electronic technology, the heat dissipation problem of various sealing cabinets, machine room is more and more outstanding, and inner on the one hand caloric value is increasing, and the dimensional requirement of rack is as best one can little on the other hand.What the heat dissipation equipment that uses was more at present is common heat exchange of heat pipe or plate type heat exchanger, and the use air-conditioning unit more at machine room dispels the heat.Common heat exchange of heat pipe mainly adopts the fin-tube type structure, and as the structure at heat pipe overcoat fin, plate type heat exchanger then is a kind of heat exchanger of routine.Along with the raising that heat radiation requires, these two kinds of heat exchangers expose its size and weight bigger, and shortcoming such as cost up presses for the little new type heat exchanger of development dimensional weight.And the air-conditioning unit of machine room heat radiation needs consumed power, as under the certain environment temperature, uses the heat exchanger of high-efficiency compact to dispel the heat, and then can reach the purpose of energy-saving and emission-reduction, has important economic and social benefit.

Summary of the invention

The purpose of this utility model is to propose a kind of close-coupled separate heat pipe heat exchanger, to overcome the above-mentioned shortcoming of existing heat exchanger, makes heat dispersion height, the size of heat exchanger compacter, enlarges the application of heat exchanger at industrial circle.

The close-coupled separate heat pipe heat exchanger that the utility model proposes comprises evaporimeter and condenser, and described evaporimeter is in the bottom, and described condenser is in top; Each is made up of described evaporimeter and condenser many flat tubes, a plurality of fin, upper header and lower collecting box, the upper/lower terminal of a plurality of flat tubes is communicated with upper header and lower collecting box respectively, a plurality of fins are fixed on the flat tube, form the fin type structure, the upper header of evaporimeter and the upper header of condenser are interconnected by vapor uptake, and the lower collecting box of evaporimeter and the lower collecting box of condenser are interconnected by liquid return tube.

The close-coupled separate heat pipe heat exchanger that the utility model proposes, its advantage is:

1, because the spacing between fin is very little, fin is thin again, therefore, in same volume, can arrange more area of dissipation, and the heat-sinking capability of heat exchanger is improved;

2, the fin height of plate-fin structure is lower, and fin and flat tube soldering are integral, so its fin efficiency height, fin and flat tube soldering do not have thermal contact resistance, make heat exchanger have the higher thermal efficiency;

3, compare with common plate-fin heat exchanger, the close-coupled separate heat pipe heat exchanger that the utility model proposes, it is a hot-pipe system, inside is evaporation and condensation heat transfer process, its evaporation and the single-phase coefficient of heat transfer of condensing heat-exchange coefficient ratio are high a lot, add the coefficient of heat transfer height between fin and the air, make whole heat exchanger heat-transfer performance higher;

4, in the close-coupled separate heat pipe heat exchanger that the utility model proposes, evaporimeter separates with condenser, has only a steam pipe to link to each other with a liquid line between them, so arrangement convenience, is easy to sealing between evaporimeter and the condenser.

Description of drawings

Fig. 1 is the structural representation of close-coupled separate heat pipe heat exchanger.

Fig. 2 is the structural representation of the evaporimeter in the heat exchanger.

Fig. 3 is the side view of Fig. 2.

Fig. 4 is the structure of condenser schematic diagram in the heat exchanger.

Among Fig. 1-Fig. 4, the 1st, evaporimeter, 1-1 are flat tubes, and 1-2 is a fin, and 1-3 is a upper header, and 1-4 is a lower collecting box; The 2nd, condenser, 2-1 are flat tubes, and 2-2 is a fin, and 2-3 is a upper header, and 2-4 is a lower collecting box, the 3rd, and vapor uptake, the 4th, liquid return tube.

The specific embodiment

The close-coupled separate heat pipe heat exchanger that the utility model proposes, its structure comprise evaporimeter 1 and condenser 2 as shown in Figure 1.Evaporimeter 1 is in the bottom, and condenser 2 is in top.Evaporimeter is identical with structure of condenser, respectively as Fig. 2 and shown in Figure 4, each is made up of many flat tube 1-1, a plurality of fin 1-2, upper header 1-3 and lower collecting box 1-4, the upper/lower terminal of many flat tubes is communicated with upper header 1-3 and lower collecting box 1-4 respectively, a plurality of fin 1-2 are fixed on the flat tube 1-1, form the fin type structure, the upper header 1-3 of evaporimeter and the upper header 2-3 of condenser are interconnected by vapor uptake 3, and the lower collecting box 1-4 of evaporimeter and the lower collecting box 2-4 of condenser are interconnected by liquid return tube 4.

The close-coupled separate heat pipe heat exchanger that the utility model proposes, its operation principle is: the evaporimeter that the fin type structure is formed and the vapor uptake of condenser, connection evaporimeter and condenser and liquid down-comer are formed a sealing system, after inside vacuumizes, be filled with a certain amount of working medium such as ammonia, freon or acetone etc., again with its sealing.The evaporimeter 1 of fin type structure or condenser 2 are formed in parallel by a lot of slim flat tubes, have header that flat tube is joined together the upper and lower of flat tube in parallel, become a sealing device, in soldering between the flat tube, arrange very compact thin fin.When the hot-air in rack or the machine room being passed through evaporimeter 1 with certain wind speed with fan or blower fan, heat will be passed to flat tube 1-1 by fin 1-2, the liquid working substance heat absorption evaporation of flat tube inside, steam enters the top header 2-3 of condenser by vapor uptake 3, and evenly enter each flat tube 2-1 of condenser, steam is condensation heat in flat tube, heat is passed to fin 2-2, and the cold wind that the certain wind speed of quilt passes through is taken away, the liquid that condenses in condenser flat tube 2-1 is by liquid down-comer 4, to evaporimeter 1, continue the heat absorption circulation by gravity reflux.

Evaporimeter 1 shown in Figure 2 and condenser 2 shown in Figure 4 are vitals of this heat exchange of heat pipe, their version is identical, but size can be different, mainly flat tube 1-1 and last lower collecting box 1-3, the 1-4 by parallel connection is welded (as shown in Figure 2), 2-1 is welded (as shown in Figure 4) with 2-3,2-4, forms seal chamber respectively.Between the flat tube soldering the very little thin fin of spacing, adopted different augmentation of heat transfer technology on these fins.Be welded with a vapor uptake 3 between the upper header of evaporimeter and the upper header of condenser, be welded with a liquid return tube 4 between the lower collecting box of evaporimeter and the lower collecting box of condenser, make each parts of heat exchanger be unified into the seal of an integral body.After whole system vacuumizes, fill, behind system sealing, constitute close-coupled separate heat pipe heat exchanger with certain liquid refrigerant such as ammonia.

Close-coupled separate heat pipe heat exchanger can be made up of plurality of rows of flat pipes and fin, also belongs to scope of the present utility model.

Claims

1. a close-coupled separate heat pipe heat exchanger is characterized in that this heat exchange of heat pipe comprises evaporimeter and condenser, and described evaporimeter is in the bottom, and described condenser is in top; Each is made up of described evaporimeter and condenser many flat tubes, a plurality of fin, upper header and lower collecting box, the upper/lower terminal of many flat tubes is communicated with upper header and lower collecting box respectively, a plurality of fins are fixed on the flat tube, form the fin type structure, the upper header of evaporimeter and the upper header of condenser are interconnected by vapor uptake, and the lower collecting box of evaporimeter and the lower collecting box of condenser are interconnected by liquid return tube.