CN204268931U - Corrugated-tube type heat exchanger - Google Patents
Corrugated-tube type heat exchanger Download PDFInfo
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- CN204268931U CN204268931U CN201420689761.8U CN201420689761U CN204268931U CN 204268931 U CN204268931 U CN 204268931U CN 201420689761 U CN201420689761 U CN 201420689761U CN 204268931 U CN204268931 U CN 204268931U
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Abstract
The utility model discloses a kind of corrugated-tube type heat exchanger, it comprises diffluence room, cylindrical shell, deflection plate, heat exchanger tube, screw rod and return passage.Described cylindrical shell two ends nozzle is sealed joint pipe seat board respectively, and run through base plate respectively along the axially oriented heat exchanger tube two ends of cylindrical shell, the mouth of pipe and the base plate of heat exchanger tube are tightly connected.On heat exchanger tube outer wall, equidistantly the deflection plate screw rod of suit is concatenated into one.Described diffluence room and return passage are connected respectively to the two ends of cylindrical shell, form shunting fluidal texture after working media and heat transferring medium heat exchange.Heat exchanger tube in the utility model is a kind of straight pipeline of bellows structure, the architectural feature of this pipe is that surface area is large, heat exchange efficiency is high, and it is long-pending not etc. often to save ripple axial cross section, the medium flowed through constantly is changed flow to and form turbulent flow, the medium of turbulent flow has the effect of washing away tube wall, consequently less scaling in tube side.Turbulation medium side interlayer, reduces wall resistance, improves heat transfer boundary condition on the other hand.
Description
Technical field
The utility model relates to a kind of heat-exchange device, and specifically, the utility model relates to the heat-exchange device that a kind of heat exchange element adopts bellows to make, and this device belongs to the product of shell-and-tube heat exchanger technical field.
Background technology
Shell-and-tube heat exchanger is a kind of traditional heat-exchange device, and this apparatus structure is simple, sturdy and durable, safe and reliable, applied widely.Just due to the existence of these distinguishing features, the heat-exchange device overwhelming majority of contemporary manufacturing industry application is being shell-and-tube heat exchanger.The built-in heat exchanger tube of commercially available shell-and-tube heat exchanger is all light wall straight tube, although the heat exchanger tube structure of light wall simple, make easily, heat exchange area is only own surface area, causes heat exchange efficiency limited, and easily fouling in tube side.The problem of these objective realities must affect user and support the use benefit, and particularly tube side fouling causes heat exchanger effectiveness straight line to decline, and this situation, except increasing energy consumption, also reduces production work efficiency.Heat exchanger tube latus rectum is less under normal circumstances, and inner snaking difficulty is large, and make snaking cost high, these problems are all that the shell-and-tube heat exchanger of prior art has problem to be solved.In recent years, the industry, in order to overcome the susceptible to plugging problem of the built-in heat exchanger tube of shell-and-tube heat exchanger, develops screwed pipe, ribbed pipe, and in pipe, adds flow-disturbing component to change the medium flow direction, facilitate medium stream to become turbulence-like, thus reach the object reducing fouling in tube side.These research and development achievements all achieve effect in various degree, seek effective solution for subtracting dirt.But these achievements are not approved so far widely, market application quantity is few, and its one of the main reasons is that screwed pipe, ribbed pipe and other special pipe difficulty of processing are large, and production cost is high, and after application, snaking is more difficult.The realistic problems such as second reason is that the special pipe such as screwed pipe, ribbed pipe inwall has inner matter, causes conduit running resistance large, folding dress difficulty.
Utility model content
The utility model is not high mainly for the shell-and-tube heat exchanger heat exchange efficiency of prior art, easily fouling and the problem of difficult snaking in tube side, propose a kind of structure simple, make easily, heat exchange efficiency is high, unit volume is little, tube side is less scaling corrugated-tube type heat exchanger.
The utility model is achieved through the following technical solutions technical goal.
Corrugated-tube type heat exchanger, it comprises diffluence room, cylindrical shell, deflection plate, heat exchanger tube, screw rod and return passage.Described cylindrical shell is prone position formula cylinder, two ends nozzle is sealed joint pipe seat board respectively, along drum shaft to arrangement gang heat exchanger tube, the two ends of every root heat exchanger tube are run through supporting base plate respectively and are tightly connected, and on heat exchanger tube outer wall, axially equidistantly the deflection plate screw rod of suit is concatenated into one; Described diffluence room and return passage are connected respectively to the two ends of cylindrical shell, form shunting fluidal texture after working media and heat transferring medium heat exchange.Its improvements are: described heat exchanger tube is a kind of straight pipeline of bellows structure.
As further improvement project, the ripple of described heat exchanger tube is evagination arc-shaped, and the pitch of waves of bellows segment is 15mm ~ 30mm.
As further improvement project, the ripple of described heat exchanger tube is sequential like.
As further improvement project, the ripple of described heat exchanger tube is interrupted shape.
As further improvement project, described heat exchanger tube two ends are provided with the pipe joint be tightly connected, the thick 1mm ~ 3mm of wall thickness of the wall ratio bellows segment of pipe joint.
As further improvement project, described heat exchanger tube stainless steel thin-wall pipe manufacturer.
The utility model compared with prior art, has following good effect:
1, under bore and length the same terms, bellows is larger than light wall straight tube heat exchange area, therefore heat exchange efficiency is high;
2, the often joint ripple axial cross section of the heat exchanger tube of bellows structure is long-pending not etc., the medium flowed through constantly is changed flow to and form turbulent flow, the medium of turbulent flow constantly washes away tube wall, this effect makes in tube side less scaling on the one hand, turbulent flow stirs medium side interlayer on the other hand, reduce wall resistance, improve heat transfer boundary condition;
3, the heat exchanger tube liquid resistance of bellows structure is little, and medium clear is good.
Accompanying drawing explanation
Fig. 1 is the utility model structural profile schematic diagram.
Fig. 2 is Fig. 1 left view.
Fig. 3 is A place partial structurtes enlarged diagram in Fig. 1, shows that the ripple of heat exchanger tube is sequential like in figure.
Fig. 4 is heat exchange tube structure enlarged diagram in Fig. 1, shows that the ripple of heat exchanger tube is interrupted shape in figure.
Fig. 5 is heat exchange tube structure enlarged diagram in Fig. 1, shows that the ripple of heat exchanger tube is the light wall straight tube that merogenesis connects in figure.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in further detail.
Corrugated tube heat exchanger shown in Fig. 1, it comprises diffluence room 1, cylindrical shell 2, deflection plate 3, heat exchanger tube 4, screw rod 5 and return passage 6.Described cylindrical shell 2 is main components, and it is a kind of prone position formula cylinder, and two ends nozzle is sealed joint pipe seat board 2.1 respectively, and base plate 2.1 end face is provided with through hole by heat exchanger tube 4 distributing position.Lay gang's heat exchanger tube 4 at cylindrical shell 2 inner chamber, as shown in Fig. 3, Fig. 4 or Fig. 5, supporting base plate 2.1 is run through at the two ends of every root heat exchanger tube 4 respectively, and base plate 2.1 outer face is tightly connected respectively heat exchanger tube 4.Described heat exchanger tube 4 two ends are provided with the pipe joint 4.1 be tightly connected, and in order to improve quality of connection, the wall thickness of the wall ratio bellows segment of pipe joint 4.1 is thicker, the present embodiment pipe joint 4.1 wall thickness 2.5mm, bellows segment wall thickness 1.2mm.In order to improve the heat exchange efficiency of heat exchanger tube 4 outer wall, on heat exchanger tube 4 outer wall, the deflection plate 3 of interval suit links into an integrated entity with screw rod 5 string.Described diffluence room 1 and return passage 6 are connected respectively to the two ends of cylindrical shell 2, form shunting fluidal texture after working media and heat transferring medium heat exchange.Described heat exchanger tube 4 is the core components in heat exchanger, its heat exchange property quality directly affects the heat exchange efficiency of heat exchanger, heat exchanger tube 4 in the utility model is straight pipelines of a kind of bellows structure, ripple on this tube wall is illustrated in figure 3 sequential like, also can make the interrupted shape of ripple as shown in Fig. 4 or Fig. 5.This kind of structure makes full use of the feature that bellows axial cross section amasss non-equivalence, the medium circulated is made constantly to change the flow direction, medium is facilitated to be turbulence-like, the medium of turbulent flow constantly washes away tube wall, this effect makes in tube side less scaling on the one hand, and the opposing party stirs medium side interlayer, effectively reduces wall resistance, directly improve heat transfer boundary condition, its result is conducive to improving heat exchange efficiency.Under bore and length the same terms, the heat exchanger tube of bellows structure is compared with the light wall straight tube of prior art, and because of ripple convex or concave, whole tube wall surface is long-pending to be enlarged markedly, and namely heat exchange area is large, is equally also conducive to improving heat exchange efficiency.In the utility model, the heat exchanger tube 4 of bellows structure remains straight tube, and tube cavity does not have foreign matter, and tube wall is smooth, and clog-free pipeline liquid resistance is little, is conducive to medium clear.Add in tube side less scaling, reduce snaking operation, heat exchanger use cost can be reduced.
The utility model is furtherly carried out below by embodiment.
The present embodiment is corrugated-tube type heat exchanger, it does feedstock oil heat exchange process for petroleum chemical enterprise, comparative example selects the built in light wall straight pipe heat exchanger of prior art, both test in making comparisons property of same production scene, although the heat exchanger that the present embodiment and comparative example are selected belongs to shell-and-tube heat exchanger together, both result of the test differences are very large.
Contrast test primary condition:
1, the built-in feedstock oil temperature of tube side is 60 DEG C ~ 100 DEG C, qualitative temperature 80 DEG C, tube side flow 5kg/s.
2, the built-in saturated vapor of shell side, the present embodiment requires that saturated vapor temperature is 120 DEG C, and comparative example requires that saturated vapor temperature is 140 DEG C.
3, the present embodiment uses the corrugated-tube type heat exchanger of 1 65 ㎡, and comparative example uses the light wall straight pipe heat exchanger of 2 65 ㎡.
Comparative test result is as shown in the table.
Comparative test result table
From above-mentioned contrast test data, the utility model embodiment is compared with comparative example, and under identical working condition, heat exchanger uses 1 less, and the light half of gross weight, can reduce the equipment investment of user 50%.Consuming quantity of steam when the heat exchanger of this specification uses is 700kg/h, then it is low 20 DEG C to add vapor (steam) temperature, and the every workday calculated by 8 hours, and the whole year can save steam 1478400kg, is converted to standard coal and is about 30T.Although the utility model embodiment is than the tube side pressure drop height 0.4MPa of comparative example, because tube side flow only has 5kg/s, former power many power consumptions 200w per hour, annual increase power consumption 1500 degree.Save steam compared with many power consumptions, the value of many power consumptions only accounts for decimal.Generally speaking, the utility model is higher than the heat exchange efficiency of prior art, obviously energy-conservation, and the tube wall of adding heat exchanger tube is less scaling, does not have possibility blocked, and does not need regular dismounting to remove contamination dirty removing processing, can save use cost thus, and raising work efficiency.
Claims (6)
1. a corrugated-tube type heat exchanger, it comprises diffluence room (1), cylindrical shell (2), deflection plate (3), heat exchanger tube (4), screw rod (5) and return passage (6); Described cylindrical shell (2) is prone position cylinder, two ends nozzle is sealed joint pipe seat board (2.1) respectively, axially gang's heat exchanger tube (4) is settled along cylindrical shell (2), the two ends of every root heat exchanger tube (4) are run through supporting base plate (2.1) respectively and are tightly connected, and on heat exchanger tube (4) outer wall, axially equidistantly the deflection plate (3) of suit is concatenated into one with screw rod (5); Described diffluence room (1) and return passage (6) are connected respectively to the two ends of cylindrical shell (2), form shunting fluidal texture after working media and heat transferring medium heat exchange; It is characterized in that: described heat exchanger tube (4) is a kind of straight pipeline of bellows structure.
2. corrugated-tube type heat exchanger according to claim 1, it is characterized in that: the ripple of described heat exchanger tube (4) is evagination arc-shaped, the pitch of waves of bellows segment is 15mm ~ 30mm.
3. corrugated-tube type heat exchanger according to claim 1, is characterized in that: the ripple of described heat exchanger tube (4) is sequential like.
4. corrugated-tube type heat exchanger according to claim 1, is characterized in that: the ripple of described heat exchanger tube (4) is interrupted shape.
5. corrugated-tube type heat exchanger according to claim 1, is characterized in that: described heat exchanger tube (4) two ends are provided with the pipe joint (4.1) be tightly connected, the thick 1mm ~ 3mm of wall thickness of the wall ratio bellows segment of pipe joint (4.1).
6. corrugated-tube type heat exchanger according to claim 1, is characterized in that: stainless steel thin-wall pipe manufacturer used by described heat exchanger tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420689761.8U CN204268931U (en) | 2014-11-18 | 2014-11-18 | Corrugated-tube type heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420689761.8U CN204268931U (en) | 2014-11-18 | 2014-11-18 | Corrugated-tube type heat exchanger |
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| CN204268931U true CN204268931U (en) | 2015-04-15 |
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| CN201420689761.8U Active CN204268931U (en) | 2014-11-18 | 2014-11-18 | Corrugated-tube type heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374220A (en) * | 2014-11-18 | 2015-02-25 | 江苏曙光压力容器有限公司 | Corrugated pipe type heat exchanger |
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- 2014-11-18 CN CN201420689761.8U patent/CN204268931U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374220A (en) * | 2014-11-18 | 2015-02-25 | 江苏曙光压力容器有限公司 | Corrugated pipe type heat exchanger |
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