CN102374799A - Shell and tube heat exchanger - Google Patents
Shell and tube heat exchanger Download PDFInfo
- Publication number
- CN102374799A CN102374799A CN2010102596514A CN201010259651A CN102374799A CN 102374799 A CN102374799 A CN 102374799A CN 2010102596514 A CN2010102596514 A CN 2010102596514A CN 201010259651 A CN201010259651 A CN 201010259651A CN 102374799 A CN102374799 A CN 102374799A
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Abstract
The invention discloses a shell and tube heat exchanger, which comprises an end plate, a channel and a core group, wherein the core group comprises a tube plate and a plurality of U-shaped internal-thread heat exchange tubes; the lower half part of the channel is provided with a liquid division plate; the liquid division plate, the channel and the end plate form a sealed space; the liquid division plate is provided with a plurality of liquid division tubes; and the first ends of the liquid division tubes and the U-shaped internal-thread heat exchange tubes are in tight coupling. In the shell and tube heat exchanger, the liquid division tubes and the liquid division plates are combined to evenly divide a refrigerating fluid, and the heat exchange area of each heat exchange tube is fully utilized. The spiral traverse baffle structure is used so as to increase the turbulence performance, a heat transfer coefficient is improved, and a heat exchange effect is greatly improved.
Description
Technical field
The present invention relates to the heat exchanger that a kind of air-conditioning system is used, particularly relate to a kind of shell and tube exchanger.
Background technology
Shell and tube exchanger is made up of parts such as housing, heat exchanger tube tube bank, tube sheet, deflection plate (baffle plate) and bobbin carriages.Mostly housing is cylindrical shape, and tube bank is equipped with in inside, and the tube bank two ends are fixed on the tube sheet.Carry out cold and hot two kinds of fluids of heat exchange, a kind of mobile in pipe, another kind of mobile outside pipe.The heat transfer coefficient that some deflection plates can improve extratubal fluid usually is installed, and deflection plate can also improve the speed of tube fluid in housing, force fluid by the regulation distance repeatedly laterally through tube bank, enhance fluid turbulent extent.
Fig. 1 is the traditional shell pipe heat exchanger that present central air conditioner system is used.Cold and hot two kinds of fluids are respectively cold-producing medium and refrigerating medium.At refrigerant side, cold-producing medium is directly flowed in the bobbin carriage 1 with liquid form by import 11, gets into heat exchanger tube 2 then.After heat absorption, cold-producing medium is discharged from exporting 12.In practical operation, often owing to receive gravity effect, what the heat exchanger tube of bottom was imported is sufficient liquid, and top then is gas.Thereby will cause the liquid maldistribution to reduce heat exchange efficiency like this.And in the refrigerating medium side, refrigerating medium is got in the packages 4 by import 41, through overbump deflection plate 3 with up and down or about pass heat exchanger tube 2 and realize heat exchange, discharge by refrigerating medium outlet 42 again.The deflection plate 3 of traditional shell-and-tube heat exchanger is " arc ", and such structure makes refrigerating medium many places " dead band " in housing, can occur.Because refrigerating medium causes the increase of water resistance with 90 ° switching-over angle frontal impact deflection plate 3, the refrigerating medium turbulent condition is unstable, and is prone to cause the deposition of impurity in the refrigerating medium, and these factors all can reduce the heat exchange efficiency of shell and tube exchanger greatly.
Traditional shell-and-tube heat exchanger cold-producing medium separatory is uneven, and the refrigerating medium flow regime is unstable, makes that the heat transfer area of unit volume is less, and heat transfer efficiency is lower, is difficult to satisfy production requirement.The heat exchange efficiency that improves heat exchanger is energy savings, the key that reduces construction investment, and the structure of therefore improving shell and tube exchanger has great significance.
Summary of the invention
The technical problem that the present invention will solve is in order to overcome the low defective of prior art heating surface heat transfer property, a kind of shell and tube exchanger to be provided.
The present invention solves above-mentioned technical problem through following technical proposals:
A kind of shell and tube exchanger; Comprise an end plate, a bobbin carriage and a core body group, said core body group comprises a tube sheet and some U type internal thread heat exchanger tubes, and its characteristics are; Be provided with a liquid separatnig plate in the latter half of said bobbin carriage; Said liquid separatnig plate, said bobbin carriage and said end plate form an enclosure space, and some separating tubes are set on this liquid separatnig plate, and first end of said separating tube and said U type internal thread heat exchanger tube are for being tightly connected.
Preferably, the diameter of said separating tube is less than the diameter of said U type internal thread heat exchanger tube, and first end of said separating tube inserts said U type internal thread heat exchanger tube.
Preferably, arrange some diameters and said separating tube diameter corresponding opening on the said liquid separatnig plate, second end of said separating tube is fastenedly connected with said liquid separatnig plate after inserting said opening.
Preferably, it is characterized in that said separating tube and said liquid separatnig plate are for being welded to connect, said liquid separatnig plate and said bobbin carriage are for being welded to connect.
Preferably, said core body group also comprises a guide rod, a helical baffles, and said guide rod is arranged in the middle of the said tube sheet, an end of said helical baffles and this tube sheet be fastenedly connected the back along this guide rod helical form around.
Preferably, every helical layer face of said helical baffles is provided with some diameter corresponding opening to diameter and said U type internal thread heat exchanger tube, and the said opening on the corresponding said helical baffles is inserted at the two ends of said U type internal thread heat exchanger tube successively.
Preferably, the material of said separating tube and said U type internal thread heat exchanger tube is copper, stainless steel or aluminium alloy.
Positive progressive effect of the present invention is: the present invention has adopted the combination of liquid separatnig plate and separating tube, makes that the cold-producing medium separatory is even, makes full use of every heat exchanger tube, makes full use of the heat exchange area of every heat exchanger tube.Thereby through using the helical baffles structure to increase the turbulent flow property of refrigerating medium, improved heat transfer coefficient, improved the heat exchange effect greatly.
Description of drawings
Fig. 1 is the general assembly structural representation of traditional shell pipe heat exchanger.
Fig. 2 is the general assembly structural representation of the embodiment of the invention.
Fig. 3 is the left view of the embodiment of the invention.
Fig. 3 a is along the profile of A-A among Fig. 3.
Fig. 4 is a B enlarged drawing among Fig. 3 a.
Fig. 5 is the liquid separatnig plate of the embodiment of the invention and the combination sketch map of separating tube.
Fig. 6 is the core sketch map of the embodiment of the invention.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.
Present embodiment is example with the present invention as " dry type single cold evaporimeter " in the refrigeration, and is as shown in Figure 2, and whole shell and tube exchanger system is divided into two kinds of working medium strokes: cold-producing medium stroke and refrigerating medium stroke.
In the cold-producing medium stroke: the latter half that the refrigerant liquid of low-temp low-pressure gets into bobbin carriage 2 by the refrigerant inlet that is arranged in an end plate 1 bottom 11; Be provided with a liquid separatnig plate 3 in these bobbin carriage 2 the latter halfs; This liquid separatnig plate 3, these bobbin carriage 2 the latter halfs and this end plate 1 form one than narrow space 21, this space 21 in the liquid uniform distribution to being arranged at the some separating tubes 4 (like Fig. 5) on the liquid separatnig plate.Like Fig. 3 and shown in Figure 4, the corresponding one by one every U type internal thread heat exchanger tube 6 of first end of every separating tube 4, and be tightly connected.Preferably, the diameter of every separating tube 4 is less than the diameter of every U type internal thread heat exchanger tube 6 of correspondence, in the every U type internal thread heat exchanger tube 6 that first end insertion of every separating tube 4 is corresponding.Second end of said some separating tubes 4 inserts in some openings 31 of the diameter correspondence that is arranged on this liquid separatnig plate 3, and is fastenedly connected.Preferably, said some separating tubes 4 and this liquid separatnig plate 3 are for being welded to connect, and this liquid separatnig plate 3 and this bobbin carriage 2 are for being welded to connect, and it is made simply, cost is low, practicality is big.Cold-producing medium flows into said one to one some U type internal thread heat exchanger tubes 6 through said some separating tubes 4.The refrigerant liquid of low-temp low-pressure absorbs fully evaporation behind the heat of the object that is cooled in said some U type internal thread heat exchanger tubes 6, discharge from the refrigerant outlet 12 on this end plate 1 top through the first half of this bobbin carriage 2 then.Whole process makes the heat exchange of said every U type internal thread heat exchanger tube 6 reach optimum state.
In the refrigerating medium stroke: refrigerating medium gets into housing by the refrigerating medium import that is arranged in housing 9 front ends 91; Under the water conservancy diversion of a helical baffles 7; Flowing and heat release staggered interting of space between refrigerating medium turbulent in the shape of a spiral form and said U type internal thread heat exchanger tube 6 in housing is adjacent discharged through the refrigerating medium outlet 92 of housing 9 rear ends then.As shown in Figure 6, an end of this helical baffles 7 and a tube sheet 5 be fastenedly connected the back along be arranged in the middle of this tube sheet 5 a guide rod 8 helical forms around.Adopt the Edge Distance of fixing this helical baffles 7 of distance sink tube, its length depends on evaporator water flow, cylinder internal diameter, heat exchanger tube size and density.The distance sink tube outside is a plastic housing, and inside is the steel wire pull bar in the screwed hole of vertical fixing on tube sheet, thus fixedly distance sink tube position and strengthening core body structure.This compact conformation can separate with housing, is convenient to clean and safeguard.Preferably; Every helical layer face of this helical baffles 7 is provided with some diameter corresponding opening 71 to diameter and said some U type internal thread heat exchanger tubes 6, and insert in the said some pairs of openings 71 on this corresponding helical baffles 7 successively at the two ends of said some U type internal thread heat exchanger tubes 6.The revolving flow shape turbulent flow that forms thus is continual and steady, and dirt is difficult for deposition, and the reduction of sealing factor has improved heat exchange efficiency.Can accomplish two kinds of exchange heat between the working medium through above-mentioned two strokes.Present embodiment is applicable to that also the present invention uses as heat pump.
Certainly, except that the foregoing description, the present invention can also be provided with a plurality of helical baffles on guide rod, or the spread geometry of design U type internal thread heat exchanger tube, like triangle or square, thereby reaches the different heat exchange effect.In addition, separating tube and U type internal thread heat exchanger tube can be selected the good material of heat exchange property, like copper, stainless steel and aluminium alloy etc., thereby improve the heat exchange effect.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited appended claims.Those skilled in the art can make numerous variations or modification to these embodiments under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (7)
1. shell and tube exchanger; Comprise an end plate, a bobbin carriage and a core body group, said core body group comprises a tube sheet and some U type internal thread heat exchanger tubes, it is characterized in that; Be provided with a liquid separatnig plate in the latter half of said bobbin carriage; Said liquid separatnig plate, said bobbin carriage and said end plate form an enclosure space, and some separating tubes are set on this liquid separatnig plate, and first end of said separating tube and said U type internal thread heat exchanger tube are for being tightly connected.
2. shell and tube exchanger as claimed in claim 1 is characterized in that, the diameter of said separating tube is less than the diameter of said U type internal thread heat exchanger tube, and first end of said separating tube inserts said U type internal thread heat exchanger tube.
3. shell and tube exchanger as claimed in claim 1 is characterized in that, arranges some diameters and said separating tube diameter corresponding opening on the said liquid separatnig plate, and second end of said separating tube is fastenedly connected with said liquid separatnig plate after inserting said opening.
4. shell and tube exchanger as claimed in claim 1 is characterized in that, said separating tube and said liquid separatnig plate are for being welded to connect, and said liquid separatnig plate and said bobbin carriage are for being welded to connect.
5. shell and tube exchanger as claimed in claim 1; It is characterized in that; Said core body group also comprises a guide rod, a helical baffles, and said guide rod is arranged in the middle of the said tube sheet, an end of said helical baffles and this tube sheet be fastenedly connected the back along this guide rod helical form around.
6. shell and tube exchanger as claimed in claim 5; It is characterized in that; Every helical layer face of said helical baffles is provided with some diameter corresponding opening to diameter and said U type internal thread heat exchanger tube, and the said opening on the corresponding said helical baffles is inserted at the two ends of said U type internal thread heat exchanger tube successively.
7. like any described shell and tube exchanger of claim 1-6, it is characterized in that the material of said separating tube and said U type internal thread heat exchanger tube is copper, stainless steel or aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102596514A CN102374799A (en) | 2010-08-20 | 2010-08-20 | Shell and tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102596514A CN102374799A (en) | 2010-08-20 | 2010-08-20 | Shell and tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102374799A true CN102374799A (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102596514A Pending CN102374799A (en) | 2010-08-20 | 2010-08-20 | Shell and tube heat exchanger |
Country Status (1)
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| CN (1) | CN102374799A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063060A (en) * | 2013-01-16 | 2013-04-24 | 英特换热设备(浙江)有限公司 | Novel casing type heat exchanger |
| CN104748582A (en) * | 2013-12-25 | 2015-07-01 | 株式会社能率 | Heat exchanger and production method thereof |
| CN105890409A (en) * | 2016-06-01 | 2016-08-24 | 珠海格力电器股份有限公司 | Shell and tube heat exchanger and liquid distribution device thereof |
| CN106940102A (en) * | 2016-01-04 | 2017-07-11 | 珠海格力电器股份有限公司 | Shell and tube exchanger and the air-conditioning equipment with it |
| CN109458764A (en) * | 2018-12-17 | 2019-03-12 | 江苏世林博尔制冷设备有限公司 | A kind of good antiscale property vertical bar type evaporator |
| CN109780894A (en) * | 2018-12-27 | 2019-05-21 | 中国寰球工程有限公司 | Vertical shell-and-tube flexible tubesheet heat exchanger |
| CN110514032A (en) * | 2019-09-19 | 2019-11-29 | 杭州沈氏节能科技股份有限公司 | A kind of shell and tube exchanger |
| US10941988B2 (en) | 2017-08-28 | 2021-03-09 | Watlow Electric Manufacturing Company | Continuous helical baffle heat exchanger |
| CN113551443A (en) * | 2021-08-25 | 2021-10-26 | 沈阳宏程世纪制冷设备有限公司 | Ring heat exchanger for water source heat pump and use method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2454757A1 (en) * | 1974-11-19 | 1976-05-20 | Peter Schmidt | Shell-and-tube heat exchanger - can be switched from condensing to vaporising duty or vice-versa |
| US4083707A (en) * | 1976-04-12 | 1978-04-11 | Bivins Jr Henry W | Flow stabilizer for tube and shell vaporizer |
| CN200952857Y (en) * | 2006-09-08 | 2007-09-26 | 刘世贵 | Screw type evaporator |
| CN200968787Y (en) * | 2006-11-17 | 2007-10-31 | 上海动力设备有限公司 | Pipe shell type heat-exchanger |
| CN201003918Y (en) * | 2007-02-06 | 2008-01-09 | 辽宁工程技术大学 | Shell heat exchanger of full reverse stroke spiral flow pipe of spiral pipe |
| CN201748826U (en) * | 2010-08-20 | 2011-02-16 | 上海瀚艺冷冻机械有限公司 | Shell and tube heat exchanger |
-
2010
- 2010-08-20 CN CN2010102596514A patent/CN102374799A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2454757A1 (en) * | 1974-11-19 | 1976-05-20 | Peter Schmidt | Shell-and-tube heat exchanger - can be switched from condensing to vaporising duty or vice-versa |
| US4083707A (en) * | 1976-04-12 | 1978-04-11 | Bivins Jr Henry W | Flow stabilizer for tube and shell vaporizer |
| CN200952857Y (en) * | 2006-09-08 | 2007-09-26 | 刘世贵 | Screw type evaporator |
| CN200968787Y (en) * | 2006-11-17 | 2007-10-31 | 上海动力设备有限公司 | Pipe shell type heat-exchanger |
| CN201003918Y (en) * | 2007-02-06 | 2008-01-09 | 辽宁工程技术大学 | Shell heat exchanger of full reverse stroke spiral flow pipe of spiral pipe |
| CN201748826U (en) * | 2010-08-20 | 2011-02-16 | 上海瀚艺冷冻机械有限公司 | Shell and tube heat exchanger |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063060A (en) * | 2013-01-16 | 2013-04-24 | 英特换热设备(浙江)有限公司 | Novel casing type heat exchanger |
| WO2014111015A1 (en) * | 2013-01-16 | 2014-07-24 | 英特换热设备(浙江)有限公司 | Novel shell and tube heat exchanger |
| CN104748582A (en) * | 2013-12-25 | 2015-07-01 | 株式会社能率 | Heat exchanger and production method thereof |
| CN104748582B (en) * | 2013-12-25 | 2018-11-09 | 株式会社能率 | Heat exchanger and its manufacturing method |
| CN106940102A (en) * | 2016-01-04 | 2017-07-11 | 珠海格力电器股份有限公司 | Shell and tube exchanger and the air-conditioning equipment with it |
| CN105890409A (en) * | 2016-06-01 | 2016-08-24 | 珠海格力电器股份有限公司 | Shell and tube heat exchanger and liquid distribution device thereof |
| US10941988B2 (en) | 2017-08-28 | 2021-03-09 | Watlow Electric Manufacturing Company | Continuous helical baffle heat exchanger |
| CN109458764A (en) * | 2018-12-17 | 2019-03-12 | 江苏世林博尔制冷设备有限公司 | A kind of good antiscale property vertical bar type evaporator |
| CN109780894A (en) * | 2018-12-27 | 2019-05-21 | 中国寰球工程有限公司 | Vertical shell-and-tube flexible tubesheet heat exchanger |
| CN110514032A (en) * | 2019-09-19 | 2019-11-29 | 杭州沈氏节能科技股份有限公司 | A kind of shell and tube exchanger |
| CN113551443A (en) * | 2021-08-25 | 2021-10-26 | 沈阳宏程世纪制冷设备有限公司 | Ring heat exchanger for water source heat pump and use method |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120314 |