CN203772065U - Casing pipe type heat exchanger - Google Patents

Casing pipe type heat exchanger Download PDF

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Publication number
CN203772065U
CN203772065U CN201420095458.5U CN201420095458U CN203772065U CN 203772065 U CN203772065 U CN 203772065U CN 201420095458 U CN201420095458 U CN 201420095458U CN 203772065 U CN203772065 U CN 203772065U
Authority
CN
China
Prior art keywords
pipe
thread copper
heat exchanger
multiple thread
copper pipes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420095458.5U
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Chinese (zh)
Inventor
李波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Ao Taihua Refrigerating Equipment Corp Ltd
Original Assignee
Beijing Ao Taihua Refrigerating Equipment Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Ao Taihua Refrigerating Equipment Corp Ltd filed Critical Beijing Ao Taihua Refrigerating Equipment Corp Ltd
Priority to CN201420095458.5U priority Critical patent/CN203772065U/en
Application granted granted Critical
Publication of CN203772065U publication Critical patent/CN203772065U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a casing pipe type heat exchanger. The casing pipe type heat exchanger consists of an outer-layer steel pipe and a plurality of inner-layermultiple-thread copper pipes, wherein the plurality of multiple-thread copper pipes for delivering fluids aresleeved on the inner layer, all the multiple-thread copper pipes inside are closely attached to one another in a sleeved manner, threads arranged all over pipe walls are engraved on inner and outer walls of each multiple-thread copper pipe, a spiralrefrigerant delivery passage is formed between the outer-layer steel pipe and each inner-layer thread copper pipe, and a spiral water path delivery passage is formed in each multiple-thread copper pipe. According to the heat exchanger, the multiple-thread copper pipes are integrated, swirling airflows are used for enhancing heat transfer, the space is used, and the plurality of multiple-thread copper pipes are connected in parallel, so that a water path and a refrigerant are fully contacted, the heat exchange coefficient is increased, and the heat exchange area is increased; in addition, when the refrigerant flows reversely, the heat exchange coefficient and the heat exchange area per unit volume are increased, so that the heat exchanger is excellent in heat exchange performance no matter whether the heat exchanger is used as a condenser or an evaporator.

Description

Double pipe heat exchanger
Technical field
The present invention relates to technical field of heat exchangers, particularly a kind of double pipe heat exchanger.
Background technology
At present, for heat exchanger, people more pay close attention to heat exchange efficiency, Master Cost, processing difficulty, service life etc.In order to consider the performance of heat exchanger, for the conventional at present heat exchange equipment that is applicable to cold-producing medium heating water or other liquid, known coaxial sleeve heat exchanger is to have outer steel pipe, and inner tube adopts multiple thread pipe, inner tube and outer tube are closely set with, and coaxial double-tube heat exchanger.In heat transfer process, this heat exchanger structure decision, cold-producing medium flows between outer tube and inner tube, and water flows in opposite directions with cold-producing medium in inner tube.Although heat exchange property increases,, this heat exchanger is still not so good as other heat exchangers high (such as plate type heat exchanger) on heat exchange efficiency, in addition, and this type of heat exchanger, in the time using as evaporimeter, heat exchange efficiency is lower.
Utility model content
For the lower heat exchange efficiency of existing coaxial sleeve heat exchanger, the object of the utility model embodiment is to provide the double pipe heat exchanger that a kind of heat exchange efficiency is higher.
For achieving the above object, the utility model embodiment provides following technical scheme:
A kind of double pipe heat exchanger, by outer layer pipe, many multiple thread copper pipes of inner sleeve form, it is characterized in that, the outer layer pipe of carrying for fluid, internal layer cover has many fluids conveying multiple thread copper pipes, between inner each multiple thread copper pipe, all fit tightly suit, and every multiple thread copper pipe outer wall, on inwall, be all carved with the screw thread that is covered with whole tube wall, and the depth of thread is not less than 1/5 of pipe thickness, the overall overall diameter parameter of many multiple thread copper pipes of internal layer, match with the interior diameter of outer layer pipe, between each screw thread copper pipe of outer layer pipe and internal layer, form spiral cold-producing medium transfer passage, the inner spiral water route transfer passage that forms of each multiple thread copper pipe.
As technique scheme preferably, many multiple thread copper pipes of internal layer and outer layer pipe have formed the two-way spirality channel of convection current in opposite directions, water route and cold-producing medium transfer passage circulate with spiral convection current in opposite directions respectively.
As technique scheme preferably, another kind of mode is between each screw thread copper pipe of outer layer pipe and internal layer, to form spiral water route transfer passage, the inner employing of each multiple thread copper pipe cold-producing medium transfer passage.
As technique scheme preferably, outer layer pipe inner sleeve has 3 or 4 multiple thread copper pipes.
The double pipe heat exchanger that the utility model embodiment provides, the spiral water flow augmentation of heat transfer that utilizes many multiple thread copper pipes to form, and utilize space, adopt the parallel connection of many multiple thread pipes, make water route divide and contact with refrigerant charging, both strengthened the coefficient of heat transfer, increased again heat exchange area.In addition, because in the time of cold-producing medium reverse flow, the heat exchange area of the coefficient of heat transfer and unit volume increases, so no matter this heat exchanger is as condenser or as evaporimeter, heat exchange property is outstanding equally.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the overall structure schematic diagram of a kind of double pipe heat exchanger of the utility model embodiment.
Fig. 2 is the cross-sectional view of a kind of double pipe heat exchanger of the utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1-2, a kind of double pipe heat exchanger that the utility model embodiment provides, outer layer pipe 1 is set with many multiple thread copper pipes 2, outer layer pipe 1 is fluid conveying seamless steel pipe, internal layer cover has many multiple thread fluids to carry copper pipe 2, between inner each screw thread copper pipe 2, all fit tightly suit, the overall overall diameter parameter of many multiple thread copper pipes of internal layer 2, matches with the interior diameter of outer layer pipe 1.Between each screw thread copper pipe 2 of outer layer pipe 1 and internal layer, form thread-shaped cold-producing medium transfer passage 11, each multiple thread copper pipe of internal layer adopts reverse water route 22 to carry.
As technique scheme preferably, after this heat exchanger suit, many multiple thread copper pipes of internal layer 2 have formed convection current Er road spirality channel in opposite directions with outer layer pipe 2, water route 22 and refrigerant flow path 11 are respectively with the spiral circulation of convection current in opposite directions.
As technique scheme preferably, another kind of mode is between each screw thread copper pipe 2 of outer layer pipe 1 and internal layer, to form thread-shaped water route transfer passage 11, the reverse conveying of each multiple thread copper pipe employing cold-producing medium 22 of internal layer.
When use, according to the internal diameter of steel pipe 1, selected many multiple thread copper pipe 2 external diameters of internal layer and quantity, confirm location dimension, is closely set in outer layer pipe 1, located.Carry out bend pipe according to different physical dimensions again, be made into arbitrary shape.Import and export attaching parts according to the external water route of different demands and cold-producing medium again, the spiral water flow augmentation of heat transfer that utilizes many multiple thread copper pipes 2 to form, adopts many multiple thread pipe 2 parallel connections, makes water route divide and contact with refrigerant charging, both strengthen the coefficient of heat transfer, increased again heat exchange area.In addition, because in the time of cold-producing medium reverse flow, the heat exchange area of the coefficient of heat transfer and unit volume increases, so heat exchange efficiency is very high, under the condition of changing on an equal basis heat demand, save material, its service life and other reliabilities are also very guaranteed, and overall price/performance ratio significantly improves.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with the protection domain of claim.

Claims (4)

1. a double pipe heat exchanger, by outer layer pipe, many multiple thread copper pipes of inner sleeve form, it is characterized in that, internal layer cover has many fluids conveying multiple thread copper pipes, between inner each multiple thread copper pipe, all fit tightly suit, and every multiple thread copper pipe outer wall, on inwall, be all carved with the screw thread that is covered with whole tube wall, and the depth of thread is not less than 1/5 of pipe thickness, the overall overall diameter parameter of many multiple thread copper pipes of internal layer, match with the interior diameter of outer layer pipe, between each screw thread copper pipe of outer layer pipe and internal layer, form spiral cold-producing medium transfer passage, the inner spiral water route transfer passage that forms of each multiple thread copper pipe.
2. double pipe heat exchanger according to claim 1, is characterized in that, many multiple thread copper pipes of described internal layer and outer layer pipe form the two-way spirality channel of convection current in opposite directions, and water route and cold-producing medium transfer passage are respectively with the spiral circulation of convection current in opposite directions.
3. double pipe heat exchanger according to claim 1, is characterized in that, between each screw thread copper pipe of outer layer pipe and internal layer, forms spiral water route transfer passage, the inner cold-producing medium transfer passage that forms of each multiple thread copper pipe.
4. double pipe heat exchanger according to claim 1, is characterized in that, outer layer pipe inner sleeve has 3 or 4 multiple thread copper pipes.
CN201420095458.5U 2014-03-04 2014-03-04 Casing pipe type heat exchanger Expired - Fee Related CN203772065U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420095458.5U CN203772065U (en) 2014-03-04 2014-03-04 Casing pipe type heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420095458.5U CN203772065U (en) 2014-03-04 2014-03-04 Casing pipe type heat exchanger

Publications (1)

Publication Number Publication Date
CN203772065U true CN203772065U (en) 2014-08-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420095458.5U Expired - Fee Related CN203772065U (en) 2014-03-04 2014-03-04 Casing pipe type heat exchanger

Country Status (1)

Country Link
CN (1) CN203772065U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110431371A (en) * 2017-06-07 2019-11-08 南京工业大学 A kind of tube mixer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110431371A (en) * 2017-06-07 2019-11-08 南京工业大学 A kind of tube mixer
CN110431371B (en) * 2017-06-07 2024-05-07 南京工业大学 Tubular mixer

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140813

Termination date: 20150304

EXPY Termination of patent right or utility model