CN203083405U - Efficient tubular heat exchanger - Google Patents
Efficient tubular heat exchanger Download PDFInfo
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- CN203083405U CN203083405U CN 201220683105 CN201220683105U CN203083405U CN 203083405 U CN203083405 U CN 203083405U CN 201220683105 CN201220683105 CN 201220683105 CN 201220683105 U CN201220683105 U CN 201220683105U CN 203083405 U CN203083405 U CN 203083405U
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Abstract
The utility model provides an efficient tubular heat exchanger. A heat exchanging surface area is enlarged by adopting a mode of arranging heat exchanging fin plates connected with each heat exchange tube in a shell tube, and heat exchanging efficiency is improved. According to a detail scheme, the efficient tubular heat exchanger comprises the shell tube and the heat exchange tubes parallel to the axial direction of the shell tube and arranged in the shell tube, the fin plates are arranged in the shell tube at intervals, each fin plate is arranged to be perpendicular to a shell tube straight line, the fin plates are provided with through holes in sequence, the diameters of the through holes are roughly equal to the outer diameter of each heat exchanging tube, and the heat exchanging tubes penetrate through the through holes in sequence and are fixedly connected with the fin plates.
Description
Technical field
The utility model is a kind of efficient pipe heat exchanger, can be applied to the large-size air conditioning system, factory's energy conserving system, and fields such as heat circulating system belong to the pipe heat exchanger in the technical field of heat exchangers.
Background technology
Well-known, heat exchanger application surface in current society is very wide, and pipe heat exchanger purposes wherein is also a lot.For example, in refrigerated air-conditioning system, must adopt heat exchanger as condensing plant, and pipe heat exchanger is wherein often use a kind of.When the cooled water heat energy of factory reclaims, also usually adopt pipe heat exchanger to carry out recuperation of heat.Existing pipe heat exchanger commonly used is to be made of the different body of a plurality of radiuses, and the body that radius is little is contained in the big body of radius, in the big body (being called package again) refrigerant is housed.Anticipate promptly, the structure of common pipe heat exchanger is to manage the embedded many heat exchanger tubes that are with at one, and these heat exchanger tubes are soaked among the refrigerant.Carry out between because heat exchange is a cold-producing medium in these many heat exchanger tubes, thereby the area that can carry out heat exchange is that the gross area by these many heat exchange pipe external surfaces is determined by the refrigerant in heat exchange pipe external surface and the package.This heat exchanger structure is more succinct, and operation is reliable, available various structural material manufacturings, and metal material for example, ceramic materials etc. can use under high temperature, high pressure, are most widely used types at present.
Such structure is no doubt succinct, and manufacturing process is simple, but also has some defectives in actual use: for example, speed is very fast when passing through heat exchanger tube owing to the cold-producing medium in the heat exchanger tube, so heat-exchange time is short, causes overall heat exchanger effectiveness not high; Therefore the quantity of heat exchanger tube is handed over after a little while in package, and then must heat exchange area little, the heat exchange effect be just not very good.And if employing increases the mode of heat exchanger tube, so whole heat transmission equipment must have bigger volume, makes floor space increase thus, and brings the whole production cost significantly to improve, and is very uneconomical.In the prior art, set up the way that little fin enlarges cooling surface area though also have on the heat exchanger tube surface, effect is still undesirable.And subsidiary fin on the every pipe, also inconvenient when heat exchanger tube is installed.
The utility model content
In order to improve heat exchange efficiency, the most effective way is exactly the heat transfer sheet area that increases every heat exchanger tube.The utility model adopts the mode that the heat exchange wing plate that is connected with each heat exchanger tube is set in package to increase the heat transfer sheet area, improves heat exchange efficiency.Concrete scheme is: a kind of pipe heat exchanger efficiently is provided, comprise package, be arranged at heat exchanger tube in the package with the package axially parallel, it is characterized in that: in package, be arranged at intervals with the wing plate, each wing plate all is provided with perpendicular to the package straight line, be provided with through hole successively on the above-mentioned wing plate, above-mentioned each through-hole diameter is roughly suitable with each heat exchanger tube external diameter, and above-mentioned each heat exchanger tube passes above-mentioned each through hole successively and fixedlys connected with above-mentioned wing plate.
Further, the utility model below also providing on the basis of such scheme additional scheme to strengthen the heat exchange effect:
Above-mentioned each piece wing panel edges radially approaches the madial wall of package.
One of following shape of edge shape of described wing plate: circular, circle lacks shape, quadrangle or polygon.
Described wing plate adopts plate shaped or waveform.
For further strengthening the effect of heat exchange, on the described wing plate calking or flange are set.
Above-mentioned each heat exchange tube inwall is provided with retention device.
Above-mentioned each heat exchanger tube inwall is provided with the flow-disturbing coating.
Pipe heat exchanger of the present utility model has increased the area of heat exchange by calking or flange hole are set on the wing plate, can effectively improve the efficient of heat exchange.Simultaneously, by at the heat exchanger tube inwall thread protrusion structure being set, sluggish cold-producing medium flowing in heat exchanger tube increased the heat exchanger time of the interior refrigerant of system of unit cryogen and package, makes the heat exchange between the two more abundant.Further,, strengthened the flow-disturbing that forms when cold-producing medium flows in heat exchanger tube, more helped sufficient heat exchange by the flow-disturbing coating being set at the heat exchanger tube inwall.Can also arrange in package bottom some of at least one rows not with the heat exchanger tube of wing plate to increase the degree of supercooling of cold-producing medium.Thereby have a following advantage:
1, the wing plate is arranged at outside whole heat exchanger tubes, forms the heat-exchanging tube bundle of band wing plate, effectively increased heat exchange area.
2, pass through the shape of wing slab integral, and the structure setting on wing panel edges and surface, form flow-disturbing when making refrigerant through the wing plate, improved heat exchange efficiency.
3, for the heat exchanger of identical heat exchange area, fin heater exchanger is more saved heat exchanger tube than the pipe heat exchanger that heat exchange pipe external surface in the prior art is provided with little fin, makes also more convenient.
4, the thread protrusion structure of heat exchanger tube inwall has increased the time of system of unit cryogen by heat exchanger tube, and meaning has promptly increased the time of carrying out heat exchange, makes heat exchange more abundant.
5, by the flow-disturbing coating being set at the heat exchanger tube inwall, make to form flow-disturbing when cold-producing medium flows through, help the increase of heat exchange efficiency.
6, do not carry out the cold excessively of cold-producing medium by setting, improved the degree of supercooling of cold-producing medium, and then improve the refrigeration of whole system with the heat exchanger tube of wing plate.
Description of drawings
Fig. 1 is the schematic diagram of the pipe heat exchanger of the utility model embodiment 1
Fig. 2 is the schematic diagram that embodiment 1 heat exchanger tube and wing harden and close
Fig. 3 is the partial enlarged view of B part among Fig. 2
Fig. 4 is the pipe heat exchanger schematic diagram of embodiment 2
The specific embodiment
A kind of pipe heat exchanger as shown in Figure 1 comprises package 1, refrigerant inlet tube 10, and refrigerant exit pipe 11 is arranged on the some heat exchanger tubes 9 in the package 1, is arranged at intervals with some wing plates 3 that radially approach package 1 madial wall in described package 1.The edge shape of described wing plate 3 can lack shape, quadrangle or polygon for circular, circle, is preferably circle, and is close to package 1 inwall.
Be disposed with each the root heat exchanger tube 9 corresponding through hole with heat-exchanging tube bundle on every wing plate 3, the diameter of above-mentioned through hole is about the external diameter of heat exchanger tube.Every heat exchanger tube 9 is located in respectively with it in through hole on corresponding some wing plates 3, and is connected with above-mentioned some wing plates 3, and connected mode can be for fixedly connected, as welding; Perhaps on-fixed connects, and for example the mode with interference fit connects.Above-mentioned wing plate 3 is to be distributed in the package 1, radially being close in the inwall with package 1 of this wing plate 3.Above-mentioned wing plate 3 can be set to plate shaped or waveform.
Shown in Fig. 2,3,, above-mentioned wing plate 3 can be set to wave-like for further strengthening the heat exchange effect.And, further, flange or calking 15 can be set on these wing plates 3.When refrigerant flows through wing plate 3 surfaces, during especially by above-mentioned flange or calking 15,, can form flow-disturbing because the surface is irregular, well-known, flow-disturbing can obviously improve heat exchange efficiency.
When wing plate 3 was shaped as waveform, can all being provided with in the both sides of each crest of calking 15 also can the side setting that flow through in face of refrigerant.What be provided with like this gets well the situation that reduces heat exchange efficiency not significantly that is in, and has significantly reduced manufacturing cost and has saved manufacturing time.
When the pipe heat exchanger operation of present embodiment, cold-producing medium enters in the heat exchanger tube 9 from import, goes out from outlet, and refrigerant enters package 1 in refrigerant inlet tube 10, flow through outside heat exchanger tube 9, and wash away wing plate 3.When refrigerant washes away wing plate 3, playing the surface, especially form flow-disturbing near the calking 15.In said process, heat is transferred in the refrigerant by heat exchanger tube 9 outer walls and wing plate 3 surfaces from cold-producing medium, and refrigerant finally flows out from refrigerant exit pipe 11, finishes exchange heat.Because the pipe heat exchanger of present embodiment is provided with wing plate 3, calking 15, makes heat exchange efficiency significantly improve than existing heat exchanger, and makes simple and reliable.
Embodiment 2
When pipe heat exchanger during, need carry out to a certain degree cold excessively usually to the cold-producing medium that enters condenser as the condenser of air-conditioning.Consider this demand, as shown in Figure 4, between wing plate 3 and package 1 bottom surface inwall, be provided with a supercooling tube 14(and also can design needs and be provided with many according to system), increasing the degree of supercooling of cold-producing medium, thereby improve the coefficient of refrigerating performance of whole refrigeration system.
Well-known, the time of carrying out heat exchange when two media is long more, and then the heat exchange between the two is just more abundant.In pipe heat exchanger, the time that cold-producing medium flows through heat exchanger tube is constant substantially, therefore determines the key factor of cold-producing medium and refrigerant heat exchange duration just to be the speed of cold-producing medium by heat exchanger tube.In the present embodiment, adopt the method that retention device is set at the refrigerator pipes inwall.For example, adopt the mode that thread protrusion (not shown) is set flowing of sluggish cold-producing medium,, make that the heat transmission of cold-producing medium and refrigerant and exchange are more abundant, to improve heat exchange efficiency to prolong the time of cold-producing medium by heat exchanger tube.
Concrete, the setting of thread protrusion is that 0.5-1.5mm is advisable with the protrusion height.The DeGrain of the words sluggishness that height of projection is too small.Height of projection is too high, and on the one hand, the cold-producing medium flow velocity will be received undue sluggishness, influences the operation of whole system; On the other hand, can cause impurity or moisture in the cold-producing medium to gather easily, form ice stifled or " dirty stifled " at heat exchanger tube internal projection place.
Further, the pitch setting of thread protrusion is advisable with 4.5-20mm.It is undesirable that pitch is provided with excessive then sluggish effect, and pitch is provided with the too small difficulty of then making.
Further, the tooth form in thread protrusion cross section can be the triangular-section of routine, perhaps trapezoid cross section, and width is advisable with 0.5-2mm.
Because be provided with thread protrusion with the flowing of sluggish cold-producing medium in heat exchanger tube, cold-producing medium can improve heat exchanger effectiveness than by common heat exchanger tube prolongation 10-20% greatly by the time of unit length heat exchanger tube.
In addition, the shape of retention device can also adopt the annulus convex shaped, zigzag, and perhaps other can effectively stop the shape of flow of refrigerant.
Embodiment 4
Technical scheme exchange heat pipe 9 inwalls in adopting embodiment 3 are handled to improve the thermal efficiency, can also adopt the mode that applies the flow-disturbing layer at heat exchanger tube 9 inwalls so that the cold-producing medium in the heat exchanger tube 9 forms flow-disturbing on internal face, reach the purpose that improves heat exchange efficiency.The mode that applies the flow-disturbing layer can be used separately, also can mix use with technological means such as thread protrusion in the embodiment 3, annulus projectioies.
Usually the flow-disturbing layer material that adopts can be by diamond dust, PAE(phthalic acid ester), material such as dialkyl polydimethylsiloxane constitutes.The flow-disturbing layer is made in the following way: get 325-500 purpose diamond dust 15-20 weight portion, and the PAE37-85 weight portion, dialkyl polydimethylsiloxane 65-85 weight portion after stirring, left standstill 5-8 minute.Evenly be coated in the heat exchanger tube inwall then, coating layer thickness is advisable with 0.3mm-1mm.After coating finished, it was following more than 15 minutes to make heat exchanger tube remain on the temperature of 65-75 degree, so that flow-disturbing layer curing molding.
In order better to guarantee the quality of heat exchanger tube, behind flow-disturbing layer curing molding, can dry with high pressure (more than the 3Bar) compressed air exchange heat pipe, to blow down the not perfect diamond dust that solidifies attached to the flow-disturbing laminar surface, avoid that these diamond dust come off when heat exchanger tube moves, equipment is caused damage or stop up.
In above-mentioned flow-disturbing layer, the diamond dust that mixes makes that flow-disturbing laminar surface roughness is bigger, makes cold-producing medium through the trickle turbulent flow of out-of-date generation easily.And dialkyl polydimethylsiloxane has certain sucking action for alkane halide commonly used, and has significant proportion to be made of alkane halide in the cold-producing medium commonly used, and perhaps part is an alkane halide.Therefore when above-mentioned cold-producing medium flow through the flow-disturbing laminar surface, alkane halide matter wherein can be subjected to the effect of dialkyl polydimethylsiloxane attraction, slows down the flow velocity of cold-producing medium, cooperated the trickle turbulent flow that causes owing to rough surface, and heat exchange effect is more obvious.And adopt PAE, help flow-disturbing layer raw material better to merge.
Embodiment 5
The flow-disturbing layer can also adopt diamond dust, chlorinated paraffin wax, dialkyl polydimethylsiloxane and small amount of ethylene base triamine to constitute, and vinyl triamine wherein can be so that the solidification effect of whole mixture be better faster.The manufacture craft of this kind flow-disturbing layer is as follows:
Get 325-500 purpose diamond dust 15-20 weight portion, chlorinated paraffin wax 30-45 weight portion, dialkyl polydimethylsiloxane 70-90 weight portion, vinyl triamine 3-8 weight portion, be coated on the heat exchanger tube inwall after stirring immediately, and slowly be heated to the 60-65 degree with the firing rate about per minute intensification 7-8 degree, kept about 5 minutes, then flow-disturbing layer curing molding.Same, the thickness that the flow-disturbing layer material applies during making should remain on 0.3-1mm and be advisable.Adopt this technical method to make heat exchanger tube flow-disturbing layer, faster more efficient than the method in the embodiment 4, and the flow-disturbing effect is unaffected.
Because the utility model has adopted above-mentioned each technological means, makes pipe heat exchanger heat transfer efficiency of the present utility model significantly improve than conventional tubular heat exchanger.At room temperature 15 degree, adopt 15 degree water as refrigerant, R134a is as cold-producing medium, and pressure is to do confirmatory experiment under the situation about 25 crust, the size of package wherein, length, the quantity of heat exchanger tube are in full accord, and it is as follows to obtain the result:
| ? | Traditional | Embodiment | 1 | |
|
|
|
| The delivery port temperature | 21.1 | 25.2 | 27.4 | 27.2 | 26.9 | 29.1 |
This shows, adopt pipe heat exchanger of the present utility model, can obviously improve heat exchanger effectiveness than traditional pipe heat exchanger.Pipe heat exchanger disclosed in the utility model is more efficient, and is more economical.In addition, it should be noted that conspicuously, the technological means that adopts among each embodiment of the utility model can be used separately on pipe heat exchanger, and use also capable of being combined is on pipe heat exchanger.Those skilled in the art replace the simple customary means that the utility model is done under the instruction of this specification, should be considered to fall among the protection domain of the present utility model.
Claims (8)
1. efficient pipe heat exchanger, comprise package, be arranged at heat exchanger tube in the package with the package axially parallel, it is characterized in that: in package, be arranged at intervals with the wing plate, each wing plate all is provided with perpendicular to the package straight line, be provided with through hole successively on the above-mentioned wing plate, above-mentioned each through-hole diameter is roughly suitable with each heat exchanger tube external diameter, and above-mentioned each heat exchanger tube passes above-mentioned each through hole successively and fixedlys connected with above-mentioned wing plate.
2. efficient pipe heat exchanger as claimed in claim 1 is characterized in that: above-mentioned each piece wing panel edges radially approaches the madial wall of package.
3. efficient pipe heat exchanger as claimed in claim 2 is characterized in that the edge shape of described wing plate lacks shape or polygon for circular, circle.
4. as claim 2 or 3 described efficient pipe heat exchangers, it is characterized in that described wing plate adopts plate shaped or waveform.
5. efficient pipe heat exchanger as claimed in claim 4 is characterized in that on the described wing plate calking or flange being set.
6. efficient pipe heat exchanger as claimed in claim 5 is characterized in that also comprising the retention device that is arranged at above-mentioned each heat exchange tube inwall.
7. efficient pipe heat exchanger as claimed in claim 1 is characterized in that also comprising the flow-disturbing coating that is arranged at above-mentioned each heat exchanger tube inwall.
8. efficient pipe heat exchanger as claimed in claim 1 is characterized in that, is provided with supercooling tube in the package bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683105 CN203083405U (en) | 2012-12-12 | 2012-12-12 | Efficient tubular heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683105 CN203083405U (en) | 2012-12-12 | 2012-12-12 | Efficient tubular heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203083405U true CN203083405U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220683105 Expired - Fee Related CN203083405U (en) | 2012-12-12 | 2012-12-12 | Efficient tubular heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203083405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743268A (en) * | 2012-12-12 | 2014-04-23 | 绵阳快典科技有限公司 | Tubular heat exchanger provided with blocking devices |
-
2012
- 2012-12-12 CN CN 201220683105 patent/CN203083405U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743268A (en) * | 2012-12-12 | 2014-04-23 | 绵阳快典科技有限公司 | Tubular heat exchanger provided with blocking devices |
| CN103743268B (en) * | 2012-12-12 | 2016-08-17 | 绵阳快典科技有限公司 | Pipe heat exchanger with retention device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20131212 |