CN201993012U

CN201993012U - Double-layer threaded turbulent flow heat exchanger

Info

Publication number: CN201993012U
Application number: CN2011200617501U
Authority: CN
Inventors: 刘毅
Original assignee: ZHONGSHAN MAIKEER THERMAL ENERGY TECHNOLOGY CO LTD
Current assignee: Guangdong Maccoer Advance Energy Science and Technology Co., Ltd.
Priority date: 2011-03-10
Filing date: 2011-03-10
Publication date: 2011-09-28
Anticipated expiration: 2021-03-10

Abstract

The utility model relates to a double-layer threaded turbulent flow heat exchanger, which comprises a large tube, an intermediate tube and a small tube. The large tube, the intermediate tube and the small tube are arranged coaxially and sleeved sequentially, wherein a first cooling medium channel is formed between the large tube and the intermediate tube, a hot medium channel is formed between the intermediate tube and the small tube, a second cooling medium channel is formed in the small tube, the intermediate tube and the small tube adopt turbulent flow tubes with threads, and the large tube adopts an optical tube or a turbulent flow tube with threads. The heat exchanger has resistance against chloride ion corrosion, and the service life of the heat exchanger can be guaranteed; since the three stainless steel tubes with the threads are adopted, the overall uniform heat exchange can be guaranteed, cold bridges or dirt can be avoided in the tubes, and the heat exchange efficiency can be guaranteed; since the strong turbulent flow can be produced, the heat exchange between mediums near the tube walls and mediums at the tube centers can be accelerated, the thorough heat exchange can be guaranteed, the efficiency of the equipment can be increased, and the service life of the equipment can be prolonged; and the structure with the sleeved tubes has high bearing capacity, the effects of ultra-high pressure, pressure relief and other factors on the equipment can be eliminated, and the service life of the equipment can be prolonged.

Description

A kind of double-deck screw thread flow-disturbing heat exchanger

Technical field

The utility model relates to a kind of heat-pump hot-water equipment, especially a kind of double-deck screw thread flow-disturbing heat exchanger that is applied to heat-pump hot-water equipment.

Background technology

Heat-pump hot-water equipment can obtain higher heat energy by the input small amount of electrical 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 is absorbed, realize heating to water.At present, the heat exchanger of common on the market heat-pump hot-water equipment has plate type heat exchanger, double braid covering tubular type heat exchanger, tubular heat exchanger, shell-and-tube heat exchanger etc., the heat exchanger that these are common, structure is all comparatively complicated, use cost and cost of goods manufactured are all than higher, heat exchange efficiency is not ideal enough, and breakdown rate is also higher simultaneously; And the bearing capacity of these heat exchangers is all lower, is not suitable for 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, the copper pipe 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.

The utility model content

The purpose of this utility model is to provide a kind of heat exchange efficiency height, bears the pressure height, the double-deck screw thread flow high efficiency heat exchanger of low cost of manufacture, resistive connection dirt, anticorrosive, long service life.

The utility model is that the technical scheme that its technical problem of solution is adopted is:

A kind of double-deck screw thread flow-disturbing heat exchanger, comprise large, medium and small pipe coaxial and that be set-located mutually, form the first cold medium channel between the wherein 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 flow-disturbing pipe, described bassoon is light pipe or threaded flow-disturbing 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 inlet 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 inlet, and the other end connects the hot media channel outlet; The hot media channel inlet is positioned at the same side with cold medium channel outlet; The hot media channel outlet is positioned at the same side with cold medium channel inlet.

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

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

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

The beneficial effects of the utility model are:

Efficient height: compare that two traditional pipelines are walked respectively, the structure of thermal medium, the utility model 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 Btu utilization efficient 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 utility model adopts stainless steel material, satisfy the heat exchanger of same heat exchange requirement, material usage of the present utility model has only the 40%(weight ratio copper pipe of copper pipe consumption light, price is lower than copper pipe), 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;

The resistive connection dirt: the calmness of dirt is relevant with the tube wall boundary-layer, and the utility model adopts the screwed pipe turbulence structure can thoroughly destroy boundary-layer, thereby dirt is difficult for adhering to; The screw-like turbulence structure makes the dirt that adheres to be discrete flakey distribution in addition, is easy to come off under the impact of heat expansion difference and current, 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 makes underdeposit corrosion alleviate or do not existed that stainless steel material has good corrosion resistance and erosion resistance ability in addition, thereby resistance to corrosion promotes greatly;

Life-span is long: the utility model is in using stainless steel tube special equipment manufacturing, and pipe shaft does not have solder joint, 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 a vertical section structure schematic diagram of the present utility model;

Fig. 2 is the cross-sectional structure schematic diagram of the utility model pipeline.

The specific embodiment

As shown in Figure 1, a kind of double-deck screw thread flow-disturbing heat exchanger provided by the utility model, comprise bassoon 1, middle pipe 2 and tubule 3 coaxial and that be set-located mutually, 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.

In the utility model, form the first cold medium channel 41 between bassoon 1 and the middle pipe 2, form hot media channel 5 between middle pipe 2 and the tubule 3, form the second cold medium channel 42 in the tubule 3; Thus, three passages have just been formed, wherein hot media channel 5 passages are used to the thermal medium that circulates, the first cold medium channel 41 and the second cold medium channel 42 cold medium that is used to circulate, 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, can transmit heat by middle pipe 2 and tubule 3, reach the heat exchange effect; Usually, one end of bassoon 1, tubule 3 can be connected cold medium channel inlet 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 inlet 64, and the other end connects hot media channel outlet 65; And for reaching heat exchange effect preferably, usually hot media channel inlet 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 inlet 62, promptly as the represented media flow direction of arrow among the figure, realize that in heat exchanger hot and cold medium direction is mobile relatively.

In addition as shown in Figure 2, in the utility model, middle pipe 2 and tubule 3 are threaded flow-disturbing pipe, and 1 of bassoon can be designed to light pipe or flow-disturbing pipe; When medium passed through, helicitic texture can play the flow-disturbing effect, makes medium rotate towards a direction, 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 opposite motion of 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, bassoon 1 between wherein adjacent two discharge pipes connects by big 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 soldering welding each other, reach the better seal effect.

Heat exchanger provided by the utility model 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 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 to the influence that equipment produced.

Claims

1. double-deck screw thread flow-disturbing heat exchanger, it is characterized in that: comprise large, medium and small pipe coaxial and that be set-located mutually, form the first cold medium channel between the wherein 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 flow-disturbing pipe, described bassoon is light pipe or threaded flow-disturbing pipe.

2. a kind of double-deck screw thread flow-disturbing heat exchanger according to claim 1 is characterized in that: in described, the hand of spiral of tubule is opposite.

3. a kind of double-deck screw thread flow-disturbing heat exchanger according to claim 1 is characterized in that: described 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.

4. according to claim 1 or 2 or 3 described a kind of double-deck screw thread flow-disturbing heat exchangers, it is characterized in that: an end end of described large and small pipe connects cold medium channel inlet 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 inlet, and the other end connects the hot media channel outlet; The hot media channel inlet is positioned at the same side with cold medium channel outlet; The hot media channel outlet is positioned at the same side with cold medium channel inlet.

5. a kind of double-deck screw thread flow-disturbing heat exchanger according to claim 4, it is characterized in that: described large, medium and small pipe is a stainless steel tube.

6. a kind of double-deck screw thread flow-disturbing heat exchanger according to claim 4, it is characterized in that: described large, medium and small pipe connects by conduit coupling, and conduit coupling and large, medium and small pipe weld together by argon arc welding or soldering.

7. a kind of double-deck screw thread flow-disturbing heat exchanger according to claim 3, it is characterized in that: large, medium and small pipe and large, medium and small tube connector weld together by argon arc welding or soldering.