CN101865616B - Shell and tube type heat exchanger - Google Patents
Shell and tube type heat exchanger Download PDFInfo
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- CN101865616B CN101865616B CN2010102073831A CN201010207383A CN101865616B CN 101865616 B CN101865616 B CN 101865616B CN 2010102073831 A CN2010102073831 A CN 2010102073831A CN 201010207383 A CN201010207383 A CN 201010207383A CN 101865616 B CN101865616 B CN 101865616B
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Abstract
The invention relates to a shell and tube type heat exchanger. A heat exchanger tube consists of an inner tube and an outer tube, wherein the inner tube is sleeved inside the outer tube, and the length of the inner tube is greater than that of the outer tube. One end of the outer tube is closed, and the closed end of the outer tube is provided with through holes on the tube wall, and two through holes of the outer tube are communicated through a connecting tube. The inner tube is a low finned tube, the outer tube is a finned tube, and a partition board for dividing a plurality of heat exchanger tubes into two parts and is arranged in a shell body. The invention provides the shell and tube type heat exchanger which can solve the problem that a cold or heat source is not available on a vehicle at the same time and has compact structure and good heat exchange effect.
Description
Technical field
The present invention relates to a kind of technical field of heat exchangers, be specifically related to a kind of shell and tube exchanger as the absorbing refrigeration system adsorbent bed.
Background technology
Be used for the most shell and tube exchangers that adopt of adsorbent bed of adsorption refrigeration system at present, adsorbent places shell, walks heat exchanging fluid in the pipe, is generally hot and cold gas or hot and cold liquid.The heat exchange property of liquid is better than gas usually, but does not have too many liquid on the car, and its loading capacity is limited again.If all carry out heating and cooling with gas, effect is bad on the one hand, and the switching of supplying with the cold and hot gas of two adsorbent beds on the other hand also is a problem.If the vehicle exhaust temperature is too high in addition, some working medium is as active carbon-methyl alcohol, and desorption temperature can not surpass 120 ℃, surpasses this temperature and then can not use.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, designed and developed out a kind ofly can solve the problem that no Cooling and Heat Source can be utilized simultaneously on the car, its compact conformation, the shell and tube exchanger of good effect of heat exchange.
The present invention is achieved by the following technical solutions:
A kind of shell and tube exchanger includes housing, is provided with heat-transfer pipe in the housing, and described heat-transfer pipe is made of interior pipe and outer tube; Interior pipe box is located in the outer tube, and interior length of tube is longer than outer tube; The sealing of outer tube one end, an end of outer duct occlusion offers through hole on tube wall, be communicated with by tube connector between two outer pipe through-holes.
A kind of shell and tube exchanger, described outer tube one end sealing, the other end does not seal; Interior pipe two ends are not all sealed.
A kind of shell and tube exchanger, described interior pipe is low finned tube.
A kind of shell and tube exchanger, described outer tube are finned tube.
A kind of shell and tube exchanger is provided with in the described housing a plurality of heat-transfer pipes is divided into two-part dividing plate.
A kind of shell and tube exchanger, described dividing plate are installed in the end that outer tube does not seal.
Modified shell and tube exchanger of the present invention, the sleeve pipe of forming by two efficient heat-exchanging pipes.An end that does not seal at outer tube has a dividing plate, and heat-transfer pipe is divided into two parts, and for the fluid of the part of flowing through between inside and outside two pipes, end portion is the import of fluid, and the upper part is its outlet.The shell-side sealing two ends, the interior pipe of sleeve pipe all stretches out outside the sealing two ends, and the heat exchanger remainder is all within sealing.Interior pipe adopts the low finned tube of efficient heat-exchanging pipe, and the external screw thread design outside the pipe can strengthen the coefficient of heat transfer, and the tenterloin internal thread in the pipe not only can increase heat exchange area, can also cause the secondary turbulent flow, improves the heat exchange efficiency in managing.Outer tube adopts finned tube, the outside fin that is with suitable dimension of pipe, and inside is riffled tube, augmentation of heat transfer.This overall structure of sleeve pipe can improve the heat exchange efficiency of entire system on the one hand, the flow resistance of outer fluid in effectively controlling again on the other hand.
Shell and tube exchanger is used for adsorption refrigeration system, generally is that active carbon places shell, is close to tube wall, walks cold water or hot water in the pipe.But if vehicle-mounted adsorption refrigeration system, space and vehicle load are limited on the car, can not additionally wear hot and cold water.If employing gas-gas heat exchange, possible effect are not fine, two switching also is a problem.Too high in addition vehicle exhaust has limited the right use of some working medium.Adopt this modified shell and tube exchanger to make adsorbent bed, shell is walked adsorbent, is close to tube wall, and during heating, conduction oil is walked in the sleeve pipe intermediate layer, and adsorbent is heated; The sleeve pipe innermost layer walks to cool off air during cooling, and adsorbent is cooled off.Can effectively solve the above-mentioned problem, system is also fairly simple, realizes easily.
Beneficial effect of the present invention is embodied in:
1) adopts modified shell and tube exchanger of the present invention to make adsorbent bed, can solve the problem that no Cooling and Heat Source can be utilized simultaneously on the car, need not carry too much cold and hot liquids, minimizing equipment and loading capacity with car.
2) the present invention adopts heat-conducting oil heating, and is more effective than the gas heating, also unlike utilizing the tail gas heating, the right use of restriction working medium.Adopt air to cool off, do not need to increase extra equipment, the air when directly utilizing car to travel flows or the typhoon machine that adds gets final product.
3) heat exchanger tube of the present invention's employing is efficient heat-exchanging pipe, and interior pipe hangs down the wing internal whorl, and outer tube overcoat fin internal whorl had both had the higher coefficient of heat transfer, did not have too big flow resistance again.Its compact conformation, good effect of heat exchange.
Description of drawings
Fig. 1 is a heat exchanger overall structure schematic diagram.
Fig. 2 is that Figure 1A is to structural representation.
Fig. 3 is that Figure 1B is to structural representation.
Fig. 4 is combination heat-transfer pipe vertical profile structural representation.
The specific embodiment
Shown in accompanying drawing 1,2,3 and 4.
Modified shell and tube exchanger of the present invention, mainly as the adsorbent bed in the absorption refrigeration, different with general shell and tube exchanger, placing pipe in the shell is not one by one single tube, but one group of sleeve pipe that group is made up of two efficient heat-exchanging pipes.Outer tube 1 is than interior pipe 2 weak points, and outer tube 1 one ends seal, and outer tube 1 has a little opening near the closed port place, and laterally zygomorphic two outer tube 1 opening parts are connected by a pipe 3; Outer tube 1 other end does not seal, as the import and export that add hot fluid.In pipe 2 two ends all do not seal, sectional areas want big than the annulus area between the inner and outer pipes 1 in the interior pipe 2, are guaranteeing under the not too big situation of flow resistance, this ratio big more helping more, conduct heat.An end that does not seal at outer tube 1 has a dividing plate 4, and heat-transfer pipe is divided into two parts, and for the fluid of the part of flowing through between inside and outside two pipes, end portion is the import of fluid, and the upper part is its outlet.The shell-side sealing two ends, the interior pipe 2 of sleeve pipe all stretches out outside the sealing two ends, and the heat exchanger remainder is all within sealing.Interior pipe 2 adopts the low finned tube of efficient heat-exchanging pipes, and the external screw thread design outside the pipe can strengthen the coefficient of heat transfer, and the tenterloin internal thread in the pipe not only can increase heat exchange area, can also cause the secondary turbulent flow, improves the heat exchange efficiency in managing.Outer tube 1 adopts finned tube, the outside fin that is with suitable dimension of pipe, and inside is riffled tube, augmentation of heat transfer.This overall structure of sleeve pipe can improve the heat exchange efficiency of entire system on the one hand, the flow resistance of outer fluid in effectively controlling again on the other hand.
Operation principle of the present invention and process are as described below: active carbon is injected by the geat flange, is filled in shell-side, is close to the heat-transfer pipe tube wall, to improve heat exchange efficiency; When adsorbent bed is heated, walk heating liquid in the middle of the sleeve pipe, adsorbent is heated, separate the sucking-off cold-producing medium, its steam is discharged by pick-up nozzle; During cooling, conduction oil stops circulation, still rests in the middle of the sleeve pipe, and air passes through in the middle of interior pipe 2, and it is lowered the temperature, and refrigerant vapour is entered the adsorbent of adsorbent bed shell by pick-up nozzle.But pressure tap placement force sensor is to detect the adsorbent bed pressure inside.The interior pipe 2 of heat-transfer pipe is low finned tube, screw thread design in the pipe can be strengthened the air heat exchange of flowing through, the outer low wing of pipe can be strengthened the heat exchange of the conduction oil of flowing through, and the internal thread of outer tube 1 also has same function, and the fin of outer tube 1 has further strengthened the heat exchange of internal flow and adsorbent.
Claims (5)
1. a shell and tube exchanger includes housing, is provided with heat-transfer pipe in the housing, it is characterized in that described heat-transfer pipe is made of interior pipe and outer tube; Interior pipe box is located in the outer tube, and interior length of tube is longer than outer tube; The sealing of outer tube one end, an end of outer duct occlusion offers through hole on tube wall, be communicated with by tube connector between two outer pipe through-holes; The sealing of outer tube one end, the other end does not seal; Interior pipe two ends are not all sealed.
2. a kind of shell and tube exchanger according to claim 1 is characterized in that described interior pipe is low finned tube.
3. a kind of shell and tube exchanger according to claim 1 is characterized in that described outer tube is a finned tube.
4. a kind of shell and tube exchanger according to claim 1 is characterized in that being provided with in the described housing a plurality of heat-transfer pipes is divided into two-part dividing plate.
5. a kind of shell and tube exchanger according to claim 4 is characterized in that described dividing plate is installed in the end that outer tube does not seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102073831A CN101865616B (en) | 2010-06-22 | 2010-06-22 | Shell and tube type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102073831A CN101865616B (en) | 2010-06-22 | 2010-06-22 | Shell and tube type heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101865616A CN101865616A (en) | 2010-10-20 |
| CN101865616B true CN101865616B (en) | 2011-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102073831A Active CN101865616B (en) | 2010-06-22 | 2010-06-22 | Shell and tube type heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN101865616B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940209B (en) * | 2019-12-10 | 2021-06-11 | 无锡市锡惠化工节能设备有限公司 | Large-scale three-dimensional heat exchange plate type heat exchanger |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4317268A (en) * | 1979-08-08 | 1982-03-02 | Solar Limited, Inc. | Process for making a heater exchanger |
| CN200947001Y (en) * | 2006-04-30 | 2007-09-12 | 华南理工大学 | Sleeve-type heat exchanger |
| AT504794B1 (en) * | 2007-02-23 | 2008-08-15 | Hefter Arnold | HEAT STORAGE |
| US20090008074A1 (en) * | 2007-07-02 | 2009-01-08 | Vamvakitis Dimitri L | Tubular heat exchanger |
| CN101226033A (en) * | 2008-02-18 | 2008-07-23 | 中原工学院 | Shell-sleeve type three-medium composite heat exchanger |
| CN201754042U (en) * | 2010-06-22 | 2011-03-02 | 合肥天鹅制冷科技有限公司 | Shell and tube type heat exchanger |
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2010
- 2010-06-22 CN CN2010102073831A patent/CN101865616B/en active Active
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| CN101865616A (en) | 2010-10-20 |
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