CN102121799B

CN102121799B - Double-layer threaded turbulent flow heat exchanger

Info

Publication number: CN102121799B
Application number: CN 201110057631
Authority: CN
Inventors: 刘毅
Original assignee: GUANGDONG MACCOER ADVANCE ENERGY SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: GUANGDONG BAISITE PIPE INDUSTRY TECHNOLOGY CO., LTD.
Priority date: 2011-03-10
Filing date: 2011-03-10
Publication date: 2013-04-10
Anticipated expiration: 2031-03-10
Also published as: CN102121799A

Abstract

The invention discloses a double-layer threaded turbulent flow heat exchanger which comprises a big pipe, a medium pipe and a small pipe, wherein the big, medium and small pipes are coaxial and sleeved with one another; a first cold medium channel is formed between the big pipe and the medium pipe; a hot medium channel is formed between the medium pipe and the small pipe; a second cold medium channel is formed in the small pipe; the medium and small pipes are threaded turbulent flow pipes; and the big pipe is a smooth pipe or threaded turbulent flow pipe. The heat exchanger provided by the invention can resist chloride ion corrosion and ensure the service life of equipment; the structure of a stainless steel three-layer threaded pipe ensures entirely uniform heat exchange and can prevent the formation of cold bridge and dirt in the pipe to ensure the heat exchange efficiency; and moreover, as a strong turbulent flow can be produced, heat exchange between the medium close to the pipe wall and the medium at the pipe center can be accelerated, thereby ensuring thorough heat exchange, improving equipment efficiency and prolonging the service life; and the sleeve structure has strong pressure bearing capacity, prevents influence on the equipment caused by excessively high pressure, pressure leakage failure and other factors during the operation of the equipment, and prolongs the service life.

Description

A kind of Double-layer threaded turbulent flow heat exchanger

Technical field

The present invention relates to a kind of heat-pump hot-water equipment, especially a kind of Double-layer threaded turbulent flow heat exchanger that is applied to heat-pump hot-water equipment.

Background technology

Heat-pump hot-water equipment can obtain higher heat energy by inputting a small amount of electric energy, is the very outstanding hot water supply equipment of a kind of effect, and it utilizes heat absorption working medium absorbing environmental heat, and by heat exchanger with the heat transferred water that absorbs, realize the heating to water.At present, the heat exchanger of common heat-pump hot-water equipment has plate type heat exchanger, Double-layer sleeve-type heat exchanger, tubular heat exchanger, shell-and-tube heat exchanger etc. on the market, the heat exchanger that these are common, structure is all comparatively complicated, use cost and cost of goods manufactured are all higher, heat exchange efficiency is not ideal enough, and the fault rate of equipment is also higher simultaneously; And the bearing capacity of these heat exchangers is all lower, is not suitable for to use at the high pressure heat transmission equipment, on the heat-pump hot-water equipment that uses carbon-dioxide gas compressor; In addition, plate type heat exchanger adopt copper brazing and other heat exchangers in order to improve heat exchange efficiency, copper tube heat exchange is all adopted in the inside, uses like this and keeps away the perforation that unavoidably is corroded, and makes the phenomenon generation of equipment scrapping.

Summary of the invention

The object of the present invention is to provide a kind of heat exchange efficiency high, bear that pressure is high, the Double-layer threaded turbulent flow high-performance heat exchanger of low cost of manufacture, ant-scaling, anticorrosive, long service life.

The present invention is that the technical scheme that its technical problem of solution adopts is:

A kind of Double-layer threaded turbulent flow heat exchanger, comprise large, medium and small pipe coaxial and that mutually be set-located, wherein form the first cold medium channel between the big or middle pipe, in, form hot media channel between the tubule, form the second cold medium channel in the tubule, in described, tubule is threaded disturbed flow pipe, described bassoon is light pipe or threaded disturbed flow pipe.

As the further improvement of such scheme, in, the hand of spiral of tubule is opposite.

As the further improvement of such scheme, large, medium and small pipe is snakelike arranging and forms multi coil road structure, and the large, medium and small pipe between adjacent two discharge pipes connects by large, medium and small tube connector respectively.

Further improvement as such scheme, one end end of large and small pipe connects cold medium channel entrance by a cold medium shunt pipe, the other end connects cold medium channel outlet by a cold medium shunt pipe, described one end of the central tube connects the hot media channel entrance, and the other end connects the hot media channel entrance; Hot media channel entrance and the outlet of cold medium channel are positioned at the same side; The hot media channel outlet is positioned at the same side with cold medium channel entrance.

Above-mentioned large, medium and small pipe is stainless steel tube.

Above-mentioned large, medium and small pipe connects by conduit coupling, and conduit coupling and large, medium and small pipe are by argon arc welding or Welding together.

Above-mentioned large, medium and small pipe and large, medium and small tube connector are by argon arc welding or Welding together.

The invention has the beneficial effects as follows:

Efficient is high: compare that two traditional pipelines are walked respectively, the structure of thermal medium, the present invention adopts three layers of unique pipe heat exchange structure, according to the cold side medium folder of bilayer one deck thermal medium, cold medium can fully be heated, the heating efficiency of thermal medium improves greatly simultaneously; And tubule and middle pipe are screwed pipe, can increase the turbulent flow of thermal medium, and have improved the convection velocity of cold medium, have also improved heat exchange efficiency simultaneously, make heat exchange more thorough;

Cost is low: the present invention adopts stainless steel material, satisfy the heat exchanger of same heat exchange requirement, material usage of the present invention only has the 40%(weight ratio copper pipe of copper pipe consumption light, the cost ratio copper pipe is low), therefore total price is generally low than copper pipe, and the service life of stainless steel enhanced tube be 3 times of copper pipe, it is also low that expense is reprocessed in operation maintenance;

Ant-scaling: the calmness of dirt is relevant with the tube wall boundary-layer, and the present invention adopts the screwed pipe turbulence structure can thoroughly destroy boundary-layer, thereby dirt is difficult for adhering to; The shape of threads turbulence structure makes the dirt that adheres to be discrete flakey to distribute in addition, is easy to come off under the impact of and current poor in heat expansion, has self-cleaning action;

Anticorrosive: the corrosion of heat exchanger mainly is the underdeposit corrosion that produces because of incrustation, and the anti-tartar characteristic is so that underdeposit corrosion alleviates or do not existed, and stainless steel material has good corrosion resistance and erosion resistance ability in addition, thereby resistance to corrosion promotes greatly;

Life-span is long: the present invention is in using stainless steel tube special equipment manufacturing, the pipe shaft no-welding-spot, and argon arc welding and soldering are adopted in the junction, and sound construction to the stainless steel tube not damaged, has prolonged service life greatly.

Description of drawings

Be further described below in conjunction with the drawings and specific embodiments:

Fig. 1 is vertical section structure schematic diagram of the present invention;

Fig. 2 is the cross-sectional structure schematic diagram of pipeline of the present invention.

The specific embodiment

As shown in Figure 1, a kind of Double-layer threaded turbulent flow heat exchanger provided by the present invention, comprise bassoon 1, middle pipe 2 and tubule 3 coaxial and that mutually be set-located, bassoon 1, middle pipe 2 and tubule 3 adopt stainless steel structure, can be connected and fixed by conduit coupling 7, conduit coupling 7 can adopt argon arc welding or soldering to weld with each pipeline.

Among the present invention, form the first cold medium channel 41 between bassoon 1 and the middle pipe 2, form hot media channel 5, tubule 3 interior formation the second cold medium channels 42 between middle pipe 2 and the tubule 3; Thus, three passages have just been formed, wherein hot media channel 5 passages are used for the circulation thermal medium, the first cold medium channel 41 and the second cold medium channel 42 are used for circulating cold medium, and hot media channel 5 is between the first cold medium channel 41 and the second cold medium channel 42, in the process of circulation, get final product transferring heat by middle pipe 2 and tubule 3, reach heat transfer effect; Usually, one end of bassoon 1, tubule 3 can be connected cold medium channel entrance 62 by a cold medium shunt pipe 61, the other end connects cold medium channel outlet 63 by another cold medium shunt pipe 61, and middle pipe 2 one ends are connected hot media channel entrance 64, and the other end connects hot media channel entrance 65; And for reaching preferably heat transfer effect, usually hot media channel entrance 64 is positioned at the same side with cold medium channel outlet 63, and hot media channel outlet 65 is positioned at the same side with cold medium channel entrance 62, namely as the represented media flow direction of arrow among the figure, realize that in heat exchanger hot and cold medium direction is relatively mobile.

In addition as shown in Figure 2, among the present invention, middle pipe 2 and tubule 3 are threaded disturbed flow pipe, and 1 of bassoon can be designed to light pipe or disturbed flow pipe; When medium passed through, helicitic texture can play the flow-disturbing effect, so that medium is towards a direction rotation, or produce turbulent, reach the stirring medium, be beneficial to the purpose that heat is transmitted, and as preferred scheme, the hand of spiral of middle pipe 2, tubule 3 is opposite, like this in the tubule 3 the second cold medium channels 42 by the time, the motion with a direction, and the thermal medium by hot media channel 5, then can produce the motion of opposite direction, be beneficial to the abundant heat exchange between the cold and hot medium.

As shown in FIG., as preferred version, bassoon 1, middle pipe 2, tubule 3 can be snakelike arranging and form multi coil road structure, be beneficial to and save the space, wherein the bassoon between adjacent two discharge pipes 1 connects by large tube connector 11, and middle pipe 2 connects by middle tube connector 21, and tubule 3 connects by little tube connector 31, and can adopt argon arc welding or Welding each other, reach preferably sealing effectiveness.

Heat exchanger provided by the present invention can resisting corrosion of chlorine ion, guarantees service life of equipment; The structure of three layers of screwed pipe of stainless steel is guaranteed whole uniform heat exchange, and can stop cold bridge and dirt formation in the pipe, guarantees heat exchange efficiency; And owing to can produce powerful turbulent flow, can accelerate the exchange heat between near the medium of tube wall and the tube hub medium, guarantee that heat exchange is thorough, improve device efficiency, increase the service life; The sleeve structure bearing capacity is strong, guarantees owing to hypertonia, pressure release fault and other factors in the equipment running process increase the service life on the impact that equipment produces.

Claims

1. Double-layer threaded turbulent flow heat exchanger, it is characterized in that: comprise large, medium and small pipe coaxial and that mutually be set-located, wherein form the first cold medium channel between the big or middle pipe, in, form hot media channel between the tubule, form the second cold medium channel in the tubule, in described, tubule is threaded disturbed flow pipe, described bassoon is light pipe or threaded disturbed flow pipe; In described, the hand of spiral of tubule is opposite, described large, medium and small pipe is snakelike arranging and forms multi coil road structure, the large, medium and small pipe between adjacent two discharge pipes connects by large, medium and small tube connector respectively.

2. a kind of Double-layer threaded turbulent flow heat exchanger according to claim 1, it is characterized in that: an end end of described large and small pipe connects cold medium channel entrance by a cold medium shunt pipe, the other end connects cold medium channel outlet by another cold medium shunt pipe, described one end of the central tube connects the hot media channel entrance, and the other end connects the hot media channel outlet; Hot media channel entrance and the outlet of cold medium channel are positioned at the same side; The hot media channel outlet is positioned at the same side with cold medium channel entrance.

3. a kind of Double-layer threaded turbulent flow heat exchanger according to claim 2, it is characterized in that: described large, medium and small pipe is stainless steel tube.

4. a kind of Double-layer threaded turbulent flow heat exchanger according to claim 2, it is characterized in that: described large, medium and small pipe connects by conduit coupling, and conduit coupling and large, medium and small pipe are by argon arc welding or Welding together.

5. a kind of Double-layer threaded turbulent flow heat exchanger according to claim 1 is characterized in that: large, medium and small pipe and large, medium and small tube connector are by argon arc welding or Welding together.