CN101776405A - Double-pipe heat exchanger - Google Patents
Double-pipe heat exchanger Download PDFInfo
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- CN101776405A CN101776405A CN 201010103648 CN201010103648A CN101776405A CN 101776405 A CN101776405 A CN 101776405A CN 201010103648 CN201010103648 CN 201010103648 CN 201010103648 A CN201010103648 A CN 201010103648A CN 101776405 A CN101776405 A CN 101776405A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
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- Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a double-pipe heat exchanger which is characterized in that an outer pipe is a plastic pipe and an inner pipe is a metal pipe; the two pipes are spliced through a U-shaped pipe with movable adapters, a rubber sealing ring and a plastic H-shaped four-way joint; and the two ports of the heat exchanger are separated and led out through a plastic T-shaped tee joint, an annular rubber sealing ring and a metal straight-through joint. Both the plastic T-shaped tee joint and the plastic H-shaped four-way joint are provided with ports which are provided with metal inserts, and round holes just for the inner pipe to pass through are arranged at the bottoms of the inserts. Two parallel straight pipe sections with equal length are respectively arranged at the two ends of the U-shaped pipe, two tubular threaded moveable adapters are respectively sleeved at the outsides of the two ends of the U-shaped pipe, and trumpet-shaped flarings are arranged at the ports of the two ends of the U-shape pipe. The heat exchanger is convenient to install, can be dismantled for cleaning and is low in cost.
Description
Technical field
The present invention relates to a kind of heat exchanger, furtherly, the present invention is a kind of double pipe heat exchanger that adopts plastic tube as outer tube.
Background technology
Double pipe heat exchanger is a kind of common heat exchanger, its essential structure is the pipe of two different-diameters, (being commonly referred to as outer tube) that diameter is big is enclosed within little (the being commonly referred to as interior pipe) outside of diameter, the exchange of heat is carried out in the reverse flow in the crack between interior pipe the inside and inner and outer pipes respectively of the different fluid (being commonly referred to as cold fluid and hot fluid) of two kinds of temperature by the tube wall of interior pipe.
At present common double pipe heat exchanger is based on metal sleeve, and promptly interior pipe and outer tube are metal tube, as copper tube, stainless steel tube, titanium pipe etc.The shape of heat exchanger is according to the difference of sleeve pipe, has a variety ofly, wherein is that the spiral plate-like that mostly is of sleeve pipe is main with the copper tube, and this is because copper tube is softer, is processed into the spirality plate-like easily.With stainless steel tube, titanium pipe is the heat exchanger of sleeve pipe, generally all is to adopt straight tube to add U-bend to combine by modes such as flange or welding.Why adopting metal tube commonplace, mainly is that metal tube is convenient to welding, and inner and outer pipes is isolated easily, and bearing capacity is also bigger simultaneously.
But, adopting the all-metal sleeve pipe, the metal of consumption is many, and the quality of complete equipment is also bigger, and manufacturing, installation and cost of transportation are all than higher.Simultaneously, because metallic sheath tubular type heat exchanger adopts welding to connect more, detachability is very poor, and therefore, the pipeline the inside is not easy to clean.Impure when the fluid of heat exchange, perhaps easily produce dirt, the pipeline blocking problem takes place easily.Simultaneously, owing to all adopt metallic conduit, when outer tube was not done the insulation processing, heat externally scattered and disappeared by outer tube easily, if increase the insulation measure of outer tube, can increase some costs again, and simultaneously, maintaining is also complicated more.
Along with succeeding in developing of plastic pipe, some good characteristics of plastic pipe,, low price little, corrosion-resistant as in light weight, easy for installation, non-scaling, resistance to water-flow etc. progressively replaced metal pipe material in some field.But utilizing plastic pipe to make double pipe heat exchanger, still have many problems at present, at first is that the plastic pipe voltage endurance capability is not as metal pipe material; Secondly, the plastic pipe poor toughness can not that works that bending is handled as metal pipe material, generally can not do machinings such as cutting, welding as metal pipe material; Secondly, plastic pipe can only be used for narrow temperature range again, and linear expansion rate is also than metal pipe material height; Again secondly, if make outer tube, need specific pipe fitting support, and lack relevant pipe fitting at present on the market, need the die sinking customization, and the injection mold cost is far above the sand casting mould of metal with plastic pipe; At last, the capacity of heat transmission of plastic pipe is very poor, has only 1/200 of stainless-steel pipe as the thermal conductivity factor of PP-R tubing, and 1/1600 of copper tube can not be used as interior pipe.
Why general present metallic sheath tubular type heat exchanger is, mainly be because they are used for application scenarios such as high temperature, high pressure, high corrosion more, and applied fluid is general purer, and heat exchanger need not frequent disassembly, cleaning.And in fact, handle if exist the fluid of certain impurity to carry out heat exchange some low pressure (being no more than 1.2MPa), low temperature (in 5 ~ 90 ℃), low burn into, particularly be applied to the occasion of Waste Heat Recovery in the daily life, as waste water energy recovery after the bathing etc., then use all-metal double pipe heat exchanger and have a lot of shortcomings, not only heavy as all-metal double pipe heat exchanger, volume is also big, with high costs, the cost of maintenance is also very high.If in above-mentioned application, use plastic pipe as the heat exchanger outer tube, then can bring a lot of benefits,, reduce manufacturing cost as reducing the weight of equipment greatly, simultaneously, plastic pipe non-scaling, resistance to water-flow be little, corrosion-resistant etc., and good characteristic can reduce the maintenance cost of heat exchanger greatly.But still not having at present practically in the double pipe heat exchanger of plastics as outer tube on the market, mainly is that lack can the actual production manufacturing and the scheme of application, and proposition of the present invention has solved an above-mentioned difficult problem.
Summary of the invention
For achieving the above object, technical scheme of the present invention is as follows:
According to the difference of the pressure and temperature of fluid, the outer tube of heat exchanger can adopt ripe water pipe such as PP-R (atactic copolymerized polypropene), ABS (acrylonitrile-butadiene-styrene copolymer), PE (polyethylene) or PVC (polyvinyl chloride).Wherein, the fluid temperature (F.T.) that PP-R, ABS, PE class tubing can transmit can reach 90 ℃, and PVC class tubing can reach 40 ℃, can be respectively applied for different occasions.Because the thermal conductivity of plastic pipe is low, can play the effect of insulation just, reduced the heat radiation loss of outer tube.Interior pipe then can not be used plastic tube as heat exchanger tube, according to the corrosivity of fluid, the difference of pressure, can adopt copper tube, stainless steel tube etc.
Because of the casing section of heat exchanger is subjected to the restriction of installing space, can not endless, in order to improve heat exchange area, strengthen the heat exchange effect, a plurality of casing sections need be coupled together.Therefore, outer tube and interior pipe all need some special parts to finish linking and isolation.This programme adopts the plastic H shape four-way of containing metal inserts to finish in conjunction with the metal U-shaped pipe of ring-type rubber seal, band metal active joint.Wherein H shape four-way has two isometric parallel leading directly to, and the centre has a side logical, and logical with side is the boundary, and the straight-through port of both sides is concordant, and two straight-through ports of a side all contain tapped metal insert, and opposite side is a plastic port.U-shaped Guan Weiyi metal tube double flat forms, and two ends have one section isometric parallel straight length, the external diameter of pipe in internal diameter is a bit larger tham, and the outside respectively is with a tubulose active joint.There is horn-like enlarging port, U-shaped pipe two ends, and port is concordant, and the external diameter of enlarging is greater than the internal diameter of active joint.Active joint has external screw thread, and mates with H shape four-way internal thread.Near enlarging place of U-shaped pipe the chamfering that matches is arranged, so that contact, transmit extruding force and give rubber ring, and reduce wearing and tearing enlarging with enlarging.Side ports near the U-shaped tube hub has polygonal head (as common turret head), instruments such as spanner easy to use.The centre-to-centre spacing of the two ends port of H shape four-way equates with the centre-to-centre spacing of U-shaped pipe two ends port, so that U-shaped pipe two ends straight length can overlap on inner pipe.Outer tube is connected to the plastic port of H shape four-way, according to the difference of plastics, adopts the method for gluing (ABS, PVC etc.) or hot melt (PP-R, PE etc.).Interior Guan Ze passes through the circular hole at H shape four-way inserts port bottom center, puts the annular rubber sealing circle, and inserts the certain degree of depth of straight length at U-shaped pipe two ends, tightens the active joint of U-shaped pipe, makes rubber seal closely compress interior pipe and metal insert, forms sealing.
The final gateway of two kinds of fluids of heat exchanger, plastic T shape threeway, annular rubber sealing circle, the metal straight coupling of employing containing metal inserts are finished to separate and are drawn.The threeway of T shape has one leads directly to, and the centre has a side logical.Side go side mouth can be plastic port, also can be the port that has the metal insert that contains screw thread, decides according to concrete application.The straight-through end of T shape threeway contains tapped metal insert, and another port is a plastic port.Metal straight coupling one headband has the external screw thread with T shape threeway inserts port internal thread coupling, and this internal diameter be a bit larger tham in the external diameter of pipe so that insert certain degree of depth with interior pipe.The centre of straight coupling has polygonal head (as common turret head), instruments such as spanner easy to use.The other end of straight coupling according to circumstances has external screw thread or internal thread, connects for outside.Its method of attachment is similar to being connected of casing section and H shape four-way, and promptly outer tube is connected with the plastic port of T shape threeway, according to the difference of plastics, adopts the method for gluing (ABS, PVC etc.) or hot melt (PP-R, PE etc.).Interior Guan Ze passes through the circular hole at T shape threeway inserts port bottom center, puts the annular rubber sealing circle, and inserts the certain degree of depth of metal straight coupling, tightens the metal straight coupling, makes rubber seal closely compress interior pipe and metal insert, forms sealing.
The material of above-mentioned H shape four-way and the threeway of T shape should be consistent with the material of outer tube, and adopt the method for injection mo(u)lding to make.H shape four-way is as if adopting one-time formed mould, the centre-to-centre spacing that then can effectively dwindle the two ends port, the packing density of raising sleeve pipe.But the unconventional mould of side in the middle of the H shape four-way has certain degree of difficulty, the mould more complicated, cost is than higher, therefore can use the threeway of two T shapes to synthesize, be spliced as the logical waney T shape threeway offside of two sides is led to, two the T shapes threeway that also can adopt the side passband to contain the threaded metal inserts is put together.The metal insert of H shape four-way and the threeway of T shape generally adopts brass or stainless steel to make.Embedding metal tube in plastic pipe is a kind of technology of maturation, and why the applied metal inserts mainly is because the hickey intensity of directly making on the plastics is very poor, damages easily, embeds the metal insert that contains screw thread and then can address this problem.The design of metal insert and manufacturing also are ripe at present technology, belong to known technology.
Above-mentioned U-shaped pipe can adopt to bend as mother tube with copper tube or stainless steel tube and form, if mother tube internal diameter originally just is a bit larger tham pipe in the heat exchanger, then the straight length at U-shaped pipe two ends just only need put and do enlarging behind the active joint and handle and get final product, and the angle of general enlarging is 45 to spend.If the internal diameter of mother tube is the same or approaching with pipe in the heat exchanger, then can carry out extrusion process to straight length earlier, forms the bellmouth that one section internal diameter is a bit larger tham the interior pipe of heat exchanger, do the enlarging processing again after putting active joint then.Above-mentioned bellmouth and enlarging technology all are the conventional process of metal pipe material processing, belong to the known technology in the industry.Active joint on the U-shaped pipe generally adopts brass or stainless steel to make.
Above-mentioned metal straight coupling generally adopts brass or stainless steel to make.
Above-mentioned annular rubber sealing circle generally adopts materials such as silicon rubber, ethylene propylene diene rubber or acrylonitrile-butadiene rubber to make, and decides according to temperature, the pressure of fluid.Its cross section can be to be shaped as circle, trapezoidal or rectangle, and is general as long as guarantee certain sectional area, can both meet the demands basically.
In order to strengthen the heat exchange effect of single sleeve pipe, metal inner pipe can adopt bellows or have the screwed pipe of spiral lines, and its two has smooth section, so that sealing.
Reasonable use H shape four-way can be realized the multi-level installation of sleeve pipe, as H shape four-way is vertically installed, just can realize that the layer of striding of sleeve pipe connects, and can effectively increase the packing density of sleeve pipe like this.
The present invention has following advantage with respect to existing metallic sheath tubular type heat exchanger scheme:
1, the heat insulation effect of plastic outer tube outclass metal outer pipe, has only stainlessly 1/200 approximately as the thermal conductivity factor of PP-R pipe, so outer tube needs to be incubated processing hardly, can effectively reduce the thermal loss that the outer tube heat radiation brings, and has improved the heat exchange effect.
2, with respect to metal pipe material and pipe fitting, the very light weight of plastic pipe and pipe fitting, the quality of entire equipment alleviates a lot, has reduced manufacturing, installation and cost of transportation.
3, with respect to metal outer pipe and pipe fitting, plastic outer tube and pipe fitting are more cheap, and the material cost of entire equipment can effectively reduce.
4, plastic outer tube and pipe fitting corrosion resistance are very strong, can not get rusty, and the life-span is very long, and maintenance cost is lower.
5, plastic outer tube and pipe fitting non-scaling, inner wall smooth, resistance to water-flow is little, has reduced the power consumption of heat exchanger self-contained fluid driving arrangement.
6, owing to adopted detachable design, interior pipe can take apart, so no matter be interior pipe and outer tube, can effectively clean, and can prevent effectively that the situation that stopping up appears in heat exchanger from taking place.
7, owing to adopted detachable design, after the metal inner pipe generation corrosion and damage, can carry out local replacing, the overall system life-span can effectively be increased.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the schematic perspective view of individual layer assembling example of the present invention;
Fig. 2 is the plane schematic top view of individual layer assembling example of the present invention;
Fig. 3 is the schematic perspective view of H shape four-way assembled portion part;
Fig. 4 is the schematic perspective view of T shape threeway assembled portion part;
Fig. 5 is the section plan of H shape four-way assembled portion (details I among Fig. 1);
Fig. 6 is a U-shaped pipe section plan;
Fig. 7 is second kind of form of U-shaped pipe;
Fig. 8 is the section plan of T shape threeway assembled portion (details II among Fig. 1);
Fig. 9 is second kind of form of metal straight coupling;
Figure 10 is second kind of form of T shape threeway;
Figure 11 is the third form of T shape threeway;
Figure 12 is several forms of rubber seal;
Figure 13 is the schematic perspective view of double-deck assembling example of the present invention;
Figure 14 is the plane schematic top view of double-deck assembling example of the present invention.
Mark among the figure is as follows:
1, H shape four-way, 2, rubber seal, 3, the U-shaped pipe, 4, active joint, 5, the threeway of T shape, 6, straight coupling, 7, metal insert, 8, outer tube, 9, interior pipe, 10, turret head, 11, chamfering, 12, enlarging, 13, socket section; I, II are details area; Filled arrows, hollow arrow are represented the flow direction of two kinds of fluids respectively.
In the accompanying drawing, watch in order not influence, the cut-away section line does not show.
The specific embodiment
Fig. 1 is the schematic perspective view of individual layer assembling example of the present invention, and Fig. 2 is the plane schematic top view of individual layer assembling example, and both can vivid explanation general configuration of the present invention.Fig. 3, Fig. 4 have showed the schematic perspective view of the part that H shape four-way and the threeway of T shape are supporting respectively, can understand the principle and the process of H shape four-way and T shape threeway kit assembling easily.
In this example, the metal insert of H shape four-way and the threeway of T shape adopts the inserts with a kind of internal thread, and the side of T shape threeway is logical also to have adopted identical internal thread metal insert, and rubber seal also adopts same specification, can effectively reduce the kind of material like this, reduce and make and management cost.In this example, H shape four-way and the threeway of T shape adopt PP-R injection molded, and outer tube adopts common on the market PP-R pipe, and interior pipe and U-shaped pipe adopt the copper tube manufacturing to form, and the metal insert of active joint, straight coupling, H shape four-way and the threeway of T shape adopts brass to make.
Fig. 5 is the section plan of H shape four-way and kit thereof assembling in this example, the details I in the corresponding diagram 2.As shown in Figure 5, H shape four-way 1 at first links into an integrated entity by hot melt with outer tube 8, pipe 9 in putting then, pass the bottom circular aperture of H shape four-way metal insert 7 ports, with rubber seal 2 covers on inner pipe, then the two ends of U-shaped pipe 3 are overlapped on inner pipe, screwed in active joint 4.Tighten,, reach sealing effectiveness until the rubber seal compressive deformation.Fig. 6 has showed the details of U-shaped pipe 3, and wherein active joint 4 has a turret head 10, instruments such as spanner easy to use.Active joint also has a big chamfering 11 near the place of U-shaped pipe enlarging 12, and is consistent with the angle of enlarging 12, and when pushing rubber seal like this, they can play closely and cooperate.U-shaped bore among Fig. 6 is even, and all is a bit larger tham the external diameter of interior pipe, and Fig. 7 has showed the U-shaped pipe of another kind of form, be that pipe is approaching in its caliber and the heat exchanger,, therefore add man-hour for pipe in making inserts certain degree of depth, it need be squeezed out a socket section 13, and then do enlarging.
Fig. 8 is the section plan of the threeway of T shape and kit thereof assembling in this example, the details II in the corresponding diagram 2.As shown in Figure 8, T shape threeway 5 at first links into an integrated entity by hot melt with outer tube 8, pipe 9 in putting then, pass the bottom circular aperture of T shape threeway metal insert 7 ports, with rubber seal 2 covers on inner pipe, then metal straight coupling 6 is had an end that mates with T shape threeway metal insert internal thread and overlap on inner pipe, tighten, until the rubber seal compressive deformation, reach sealing effectiveness.All there is external screw thread at straight coupling 6 two ends, and there is turret head the centre, instruments such as spanner easy to use.Fig. 9 has showed the straight coupling of another kind of form, compares with the straight coupling among Fig. 8, and difference is that the hickey in its left side is an internal thread, can be applicable to the occasion that some need internal thread.The side passband of the T shape threeway among Fig. 8 has the internal thread inserts, according to concrete applicable cases, also can select to use the T shape threeway of Figure 10, Figure 11, and both variations of back are that the side of Figure 10 is logical to contain the external screw thread inserts, and the side general rule of Figure 11 is a plastic port.
In this example, the form of rubber seal 2 does not have big restriction, and material can be selected silicon rubber, ethylene propylene diene rubber or the acrylonitrile-butadiene rubber etc. used always, and its cross sectional shape is circular, trapezoidal or rectangle etc., and Figure 12 has showed several frequently seen cross sectional shape.
Figure 13, Figure 14 have showed a kind of example of double-deck assembling, and the former is a schematic perspective view, and the latter is the plane schematic top view.In order to realize double-deck assembling, a H shape four-way that keeps to the side needs vertical the placement, and corresponding U-shaped pipe is vertically assembling also, and like this, sleeve pipe just can be realized the connection of levels.Adopt similar gimmick, the multilayer assembling just can easily realize.
Above embodiment only partly is illustrated technical essential, as for some known technologies that relates to, if there is omission, does not cause the infringement to practicality of the present invention in the foregoing description.In addition, the foregoing description only is used to illustrate technical scheme of the present invention, but not limit it, still can basic principle according to the present invention technical scheme is made amendment or be equal to replacement, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.
Claims (8)
1. double pipe heat exchanger is characterized in that:
This heat exchanger is made up of metal U-shaped pipe, the metal straight coupling of the plastic T shape threeway of the plastic H shape four-way of plastic outer tube, metal inner pipe, containing metal inserts, containing metal inserts, annular rubber sealing circle, band metal active joint;
H shape four-way has two isometric parallel leading directly to, and the centre has a side logical, and logical with side is the boundary, and the straight-through port of both sides is concordant, and two straight-through ports of a side all contain tapped metal insert, and opposite side is a plastic port;
The threeway of T shape has one leads directly to, and the centre has a side logical, and side go side mouth can be plastic port, also can be the port that has the metal insert that contains screw thread, and a straight-through end contains tapped metal insert, and another port is a plastic port;
All there is a circular hole in the bottom centre of H shape four-way and T shape threeway containing metal inserts port, and pipe passed through in its size was just allowed;
U-shaped Guan Weiyi metal tube double flat forms, and two ends have one section isometric parallel straight length, the external diameter of pipe in internal diameter is a bit larger tham, and the outside respectively is with a tubulose active joint;
There is horn-like enlarging port, U-shaped pipe two ends, and port is concordant, and the external diameter of enlarging is greater than the internal diameter of active joint;
Active joint has the external screw thread with H shape four-way inserts port internal thread coupling, near enlarging place of U-shaped pipe the chamfering that matches is arranged, and a side ports of close U-shaped tube hub has polygonal head;
The centre-to-centre spacing of the two ends port of H shape four-way equates with the centre-to-centre spacing of U-shaped pipe two ends port;
The external diameter of pipe in the internal diameter that the metal straight coupling is is a bit larger tham, and have the external screw thread that mates with T shape threeway inserts port internal thread, the centre of straight coupling has polygonal head, and the other end has external screw thread or internal thread;
Its annexation is, H shape four-way is adopted in splicing between the sleeve pipe, the annular rubber sealing circle, the U-shaped pipe of band active joint is finished, form array structure, two final ports of heat exchanger adopt the threeway of T shape, the annular rubber sealing circle, the metal straight coupling is finished to separate and is drawn, outer tube is with H shape four-way, the plastic port of T shape threeway connects, interior pipe passes through H shape four-way, the circular hole of T shape threeway inserts port, two all puts rubber seal then, insert the straight length or the certain degree of depth of metal straight coupling at U-shaped pipe two ends, tighten with the active joint or the metal straight coupling of U-shaped pipe.
2. double pipe heat exchanger according to claim 1, it is characterized in that: the plastic material of the outer tube of being addressed, H shape four-way, the threeway of T shape is PP-R (atactic copolymerized polypropene) or PE (polyethylene), and outer tube is that hot melt is connected with the method for attachment of the plastic port of H shape four-way, the threeway of T shape.
3. double pipe heat exchanger according to claim 1, it is characterized in that: the plastic material of the outer tube of being addressed, H shape four-way, the threeway of T shape is PVC (polyvinyl chloride) or ABS (acrylonitrile-butadiene-styrene copolymer), and the method for attachment of the plastic port of outer tube and H shape four-way, the threeway of T shape is gluing.
4. double pipe heat exchanger according to claim 1 is characterized in that: the H shape four-way of being addressed can be one-time formed through injection moulding, also can be to be spliced by two T shape threeway offsides are logical in advance.
5. double pipe heat exchanger according to claim 1 is characterized in that: the interior pipe of being addressed, the material of U-shaped pipe are red copper or stainless steel, and the material of the inserts of H shape four-way and the threeway of T shape, the active joint of U-shaped pipe, straight coupling is brass or stainless steel.
6. double pipe heat exchanger according to claim 1 is characterized in that: the interior pipe of being addressed has the metal bellows of smooth section for two.
7. double pipe heat exchanger according to claim 1 is characterized in that: two of the interior pipe of being addressed is a smooth section, and the surfaces externally and internally of interlude has the helical lines.
8. double pipe heat exchanger according to claim 1 is characterized in that: the material of the rubber seal of being addressed is silicon rubber, ethylene propylene diene rubber or acrylonitrile-butadiene rubber, and its cross sectional shape is circular, trapezoidal or rectangle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010103648 CN101776405B (en) | 2010-02-01 | 2010-02-01 | Double-pipe heat exchanger |
| PCT/CN2011/070410 WO2011091732A1 (en) | 2010-02-01 | 2011-01-20 | Double-pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010103648 CN101776405B (en) | 2010-02-01 | 2010-02-01 | Double-pipe heat exchanger |
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| CN101776405A true CN101776405A (en) | 2010-07-14 |
| CN101776405B CN101776405B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010103648 Expired - Fee Related CN101776405B (en) | 2010-02-01 | 2010-02-01 | Double-pipe heat exchanger |
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| CN101949660A (en) * | 2010-09-17 | 2011-01-19 | 北京华创瑞风空调科技有限公司 | Coaxial double-pipe heat exchanger with corrosion-resistant plastic outer pipe |
| WO2011091732A1 (en) * | 2010-02-01 | 2011-08-04 | 上海醇华电子有限公司 | Double-pipe heat exchanger |
| EP2443984A3 (en) * | 2012-01-27 | 2012-08-22 | V-Zug AG | Coaxial heat exchanger for a domestic appliance |
| CN102853711A (en) * | 2012-08-17 | 2013-01-02 | 贝恩医疗设备(广州)有限公司 | Heat exchange joint and heat exchange device |
| CN104613580A (en) * | 2015-01-30 | 2015-05-13 | 郑州轻工业学院 | Air-conditioning unit used for machine room refrigeration |
| CN104930878A (en) * | 2015-05-20 | 2015-09-23 | 苏州锦珂塑胶科技有限公司 | Heat exchanger and heat energy recovery device |
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| CN110726315A (en) * | 2018-07-16 | 2020-01-24 | 苏州能讯高能半导体有限公司 | Sleeve type heat exchanger |
| CN110822949A (en) * | 2019-10-12 | 2020-02-21 | 西安交通大学 | Column-plate heat exchanger and using method and cleaning and maintaining method thereof |
| CN112194902A (en) * | 2020-09-26 | 2021-01-08 | 追信数字科技有限公司 | Double-layer heat exchange tube for ice melting structure for vehicle and manufacturing method thereof |
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| CN2605536Y (en) * | 2003-03-19 | 2004-03-03 | 成都希望电子研究所 | Water-source heat-pump air conditioner |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011091732A1 (en) * | 2010-02-01 | 2011-08-04 | 上海醇华电子有限公司 | Double-pipe heat exchanger |
| CN101949660A (en) * | 2010-09-17 | 2011-01-19 | 北京华创瑞风空调科技有限公司 | Coaxial double-pipe heat exchanger with corrosion-resistant plastic outer pipe |
| EP2443984A3 (en) * | 2012-01-27 | 2012-08-22 | V-Zug AG | Coaxial heat exchanger for a domestic appliance |
| CN102853711A (en) * | 2012-08-17 | 2013-01-02 | 贝恩医疗设备(广州)有限公司 | Heat exchange joint and heat exchange device |
| CN104613580A (en) * | 2015-01-30 | 2015-05-13 | 郑州轻工业学院 | Air-conditioning unit used for machine room refrigeration |
| CN104930878A (en) * | 2015-05-20 | 2015-09-23 | 苏州锦珂塑胶科技有限公司 | Heat exchanger and heat energy recovery device |
| CN107525417A (en) * | 2017-09-29 | 2017-12-29 | 张跃 | A kind of body of heater with exhaust gas heat exchanger |
| CN107612485A (en) * | 2017-10-19 | 2018-01-19 | 镇江市鑫汉太阳能电力有限公司 | A kind of multicoat silicon crystal cell |
| CN107859861A (en) * | 2017-12-27 | 2018-03-30 | 刘星海 | Lubricating-oil Station for high oil field water injection pump shaft watt lubrication |
| CN110726315A (en) * | 2018-07-16 | 2020-01-24 | 苏州能讯高能半导体有限公司 | Sleeve type heat exchanger |
| CN110822949A (en) * | 2019-10-12 | 2020-02-21 | 西安交通大学 | Column-plate heat exchanger and using method and cleaning and maintaining method thereof |
| CN112194902A (en) * | 2020-09-26 | 2021-01-08 | 追信数字科技有限公司 | Double-layer heat exchange tube for ice melting structure for vehicle and manufacturing method thereof |
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| CN101776405B (en) | 2012-10-03 |
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