CN2510815Y

CN2510815Y - Multi-layer, high-efficient heat exchanger

Info

Publication number: CN2510815Y
Application number: CN 02225119
Authority: CN
Inventors: 陈树标; 孙应真
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-11
Filing date: 2002-01-11
Publication date: 2002-09-11
Anticipated expiration: 2012-01-11

Abstract

The utility model provides a multi-layer high-efficient heat exchanger, wherein a fundamental heat exchange unit is composed of pipes with three kinds of surfaces. The utility model is characterized in that the pipes with three kinds of surfaces are composed of inner pipes, middle pipes and outer pipes; the shape of the outer surface of the inner pipe forms a double rib multi-hole shape; the inner surface of the inner pipe forms an eddy shape; the outer surface of the middle pipe forms the eddy shape; the inner surface of the middle pipe forms the double rib multi-hole shape; the outer pipe is a smooth surface. The utility model has the characteristics of simple manufacturing process, high heat exchange coefficient, stable operating conditions, difficult clogging, easy cleanness, convenient expansion, simple installation, etc. The utility model is suitable for condensers and evaporators in the technical field of refrigerating air conditioners as well as is taken as heat exchanging apparatus for other industries.

Description

The multi-layer efficient heat exchanger

Technical field

The utility model relates to heat-exchanger rig, particularly a kind of multi-layer efficient heat exchanger.

Background technology

At present, what generally adopt in the refrigeration industry is finned heat exchanger, shell-and-tube heat exchanger and dual-tubes heat exchanger three major types, and there is the manufacturing process complexity in preceding two classes, and labour intensity is big, the low deficiency that waits of the coefficient of heat transfer.Although latter's coefficient of heat transfer improves greatly, dirt is difficult to get rid of in the pipe, after operation a period of time, its coefficient of heat transfer still can reduce, do not tackle the problem at its root, and two kinds of heat transferring mediums only carry out heat exchange at a side heat exchange surface, heat exchanger is not still brought into play its maximum potential.

Summary of the invention

The purpose of this utility model is to overcome above deficiency, provides a kind of manufacturing process simple, coefficient of heat transfer height, and operating condition is stable, is difficult for stopping up, and cleans easily, and it is convenient to expand, easy-to-install multi-layer efficient heat exchanger.

The purpose of this utility model is to be achieved by the following scheme: the pipe by three kinds of different surfaces constitutes basic heat exchange unit, it is characterized in that: the pipe of three kinds of different surfaces is made up of interior pipe, intervalve and outer tube, wherein the external surface shape of interior pipe is two rib porous shapes, and inner surface is a vortex shape; The outer surface of intervalve is a vortex shape, and inner surface is two rib porous shapes, and outer tube is smooth shape surface.

By the basic heat exchange unit that the pipe of above-mentioned three kinds of different surfaces is formed, can produce splice type, serpentine coil type, plate type, " L " type, round, oval type various ways.Basic heat exchange unit carries out series, parallel or the series-parallel connection mode makes up and the individual components of composition moduleization.

Increased by 25.2% by the heat-transfer surface area of heat transferring medium one side than the two sleeve pipes of screw thread on every meter length of the utility model, than increasing by 70.1% with smooth three double-tube heat exchangers of diameter; Heat transferring medium one side heat exchanger face area increases by 43.3% than the two sleeve pipes of screw thread on every meter length, than increasing by 18.2% with smooth three double-tube heat exchangers of diameter.Because the special surface structure of heat exchanger and the guidance function of coupling assembling, heat transferring medium produces violent disturbance in basic heat exchange unit, makes the heat exchange effect improve (coefficient of heat transfer improves 2.2-3 doubly) greatly.The fluid dynamic field of violent disturbance makes the dirt in the heat transferring medium be difficult for sticking to heat exchanger surface.Have novel structure, processing technology is simple, good effect of heat exchange, and operating condition is stable, is difficult in the pipe stopping up, cleaning easily, but advantages such as modularization production.

Description of drawings

Below in conjunction with accompanying drawing the utility model is illustrated:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is another example structure schematic diagram of Fig. 1.

The specific embodiment

Embodiment one:

As shown in Figure 1: be the modular schematic diagram: form by interior pipe 1, intervalve 2, outer tube 3, refrigerant medium input pipe mouth 4, water pipe head 5, water pipe bridge piece 6, refrigerant pipe joint 7, the refrigerant output mouth of pipe 8, water inlet pipe mouth 9, effluent pipe mouth 10, connector 11.The outer surface of interior pipe 1 is made two shape surfaces, rib porous road, and inner surface is made the spiral type surface; The outer surface of intervalve 2 is the spiral type surface, and inner surface is two shape surfaces, rib porous road; Outer tube 3 is smooth shape surface.Heat exchange unit connects and composes one by bend pipe and straight tube by connector 11, wherein connects by refrigerant pipe joint 7 between each basic heat exchange unit.Heat exchange unit can be according to heat exchange amount and technological requirement, and series, parallel or mixed connection are combined into modular individual components arbitrarily, use to satisfy under the different condition.

Embodiment two:

As shown in Figure 2, be another kind of embodiment of the present utility model, be spliced heat exchanger structure schematic diagram.Be on the basis of embodiment one, straight tube, bend pipe, coolant connecting tube be designed to can the basic heat exchange unit of multistage connecting method carry out different modes combination such as series, parallel or series-parallel connection and the individual components of composition moduleization.

Operation principle of the present utility model is: intermediate layer 2 passages that entered basic heat exchange unit by heat transferring medium from refrigerant medium input pipe mouth 4, flow through the straight-through refrigerant pipe joint 7 of enlarging and enter another basic heat exchange unit, behind the heat transferring medium heat-shift, flow out from refrigerant medium efferent duct mouth 8.Interior pipe and outer layer channel reverse flow that heat transferring medium enters basic heat exchange unit from water inlet pipe mouth 9 are flowed out from effluent pipe mouth 10 after another basic heat exchange unit absorbs (or emitting) heat through turning to bridge piece 6 to enter.Water pipe head 5 and turn to bridge piece 6 to be demountable structure is convenient to basic heat exchange unit is cleaned.

Claims

1, a kind of multi-layer efficient heat exchanger, pipe by three kinds of different surfaces constitutes basic heat exchange unit, it is characterized in that: the pipe of three kinds of different surfaces is made up of interior pipe (1), intervalve (2) and outer tube (3), the external surface shape of pipe (1) is two rib porous shapes wherein, and inner surface is a vortex shape; The outer surface of intervalve (2) is a vortex shape, and inner surface is two rib porous shapes; Outer tube (3) is smooth shape surface.

2, multi-layer efficient heat exchanger according to claim 1, it is characterized in that: the basic heat exchange unit that the pipe of three kinds of different surfaces shapes is formed can produce the mode that splice type, serpentine coil type, plate type, L type, the basic heat exchange unit of round, oval type various ways carry out series, parallel or series-parallel connection and make up and the individual components of composition moduleization.