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CN201876166U - Heat exchange tube with hole - Google Patents

Heat exchange tube with hole Download PDF

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Publication number
CN201876166U
CN201876166U CN2010206338767U CN201020633876U CN201876166U CN 201876166 U CN201876166 U CN 201876166U CN 2010206338767 U CN2010206338767 U CN 2010206338767U CN 201020633876 U CN201020633876 U CN 201020633876U CN 201876166 U CN201876166 U CN 201876166U
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CN
China
Prior art keywords
heat exchanger
tube
heat exchange
heat
holes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010206338767U
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Chinese (zh)
Inventor
孔祥锋
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SHANGHAI KEMI STEEL TUBE CO Ltd
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SHANGHAI KEMI STEEL TUBE CO Ltd
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Priority to CN2010206338767U priority Critical patent/CN201876166U/en
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Publication of CN201876166U publication Critical patent/CN201876166U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

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  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The utility model discloses a heat exchange tube with a hole. The heat exchange tube at least comprises an outer tube, wherein a medium channel is formed inside the outer tube; a heat exchange component is arranged in the medium channel and is provided with at least one through hole; the heat exchange component partitions the medium channel into a direct heat exchange area for exchanging heat with the outer tube and an indirect heat exchange area for exchanging heat with the heat exchange component; and a heat exchange medium in the indirect heat exchange area exchanges heat energy with a heat exchange medium in the direct heat exchange area through the heat exchange component. In the heat exchange tube with the hole, the heat exchange component is provided with the through hole, and a part of the heat exchange medium of the indirect heat exchange area can enter the direct heat exchange area, so that the heat exchanging efficiency of the indirect heat exchange area is greatly improved, and the overall heat exchanging efficiency of the heat exchange tube is much higher than that of the conventional heat exchange tube. The heat exchange tube with the hole has the advantages of low cost, convenience in manufacturing and the like, and is suitable to be taken as a tube of an efficient heat exchanger or heat exchange equipment in various industries such as petroleum, chemical industry, chemical fertilizers, boilers, pharmaceutical industry, foods, electric power, nuclear energy, environmental protection, heat supply and the like.

Description

Heat exchanger tube with holes
Technical field
The utility model relates to the metal tube processing technique field, relates in particular to a kind of heat exchanger tube that is used for heat transmission equipments such as heat exchanger.
Background technology
Press GB/T24590-2009 " high-performance heat exchanger heat exchanger tube " standard, the existing high-efficiency heat exchange tube for heat exchanger of China is divided into and is four major types, is respectively T type barrel, bellows, interior ripple male-pipe, interior barrel.The common ground of their maximums is: all be to go up at metal parent tube (straight collimator) by cold machining process to make the heat exchanger tube that processes.
As shown in Figure 1, T type barrel of the prior art forms intensive helical form T type groove 11 by cold working on the outer wall of metal parent tube 1.T type barrel can be divided into by version: the I type, and the pipe outer wall is T type conduit, inside pipe wall smooth surface; The II type, the pipe outer wall is T type conduit, and the inside pipe wall surface is corrugated.
As shown in Figure 2, bellows of the prior art forms the heat exchanger tube that the inside and outside surface of pipe all is corrugated 11 by cold working on metal parent tube 1.
As shown in Figure 3, of the prior art in the ripple male-pipe, on metal parent tube 1, form the pipe outer wall and be the heat exchanger tube that screw thread 11, inside pipe wall are corrugated 12 by cold working.
As shown in Figure 4, of the prior art in barrel, form the heat exchanger tube of groove 11 by cold working at the inwall of metal parent tube 1.Interior barrel can be divided into by version: I type, axial notch; The II type, helical groove.
Above-mentioned four big class heat exchanger tubes are compared with the metal straight collimator that directly is used as heat exchanger tube without cold working, because on the metal parent tube, have the formed flute profile of cold working, waveform etc., strengthened heat-transfer effect, therefore the heat exchange area and the heat exchange efficiency of heat exchanger tube have been improved effectively, so be called as heat exchanger " efficiently " heat exchanger tube.
Above-mentioned this four big class heat exchanger tube all passes through cold-formed as parent tube with the seamless metal straight collimator, its cold machining process mainly is the variation of the seamless metal straight collimator being done shape.Further, this four big class heat exchanger tube all is to carry out cold working on the inside and outside wall of seamless metal straight collimator, and the processing amplitude is limit by pipe thickness, therefore is difficult to improve significantly heat exchange area again.
Heat exchanger tube of the prior art is when doing heat exchange, and heat transferring mediums such as water, oil, gas circulate in heat exchanger tube, by means of the technical purpose of heat-shift between other media that the heat exchange tube wall is realized and heat exchanger tube is outer.In heat exchanging process, more abundant near the heat exchange that heat transferring medium carried out in heat exchanger tube tube wall zone, heat exchange efficiency is higher; And away from the heat exchanger tube tube wall, be positioned at the heat exchange of heat transferring medium of heat exchanger tube central area and insufficient, though above-mentioned heat exchanger tube therefore of the prior art improves through certain, whole heat exchange efficiency is still lower.
And, some tangible deficiency below heat exchanger tube of the prior art also exists in production, use:
1, be limited by the specification limits of cold working equipment, the heat exchanger tube finished product all is subjected to great limitation at aspects such as specification, length;
2, because the cold working step is arranged, raw-material loss is bigger;
3, because cold working process complexity causes the machining accuracy of product uneven;
4, the method for inspection of cold machining process and measuring means are difficult to guarantee end product quality;
5, limited by processing technology, tubulation efficient is not high;
6, this four big class heat exchanger tube has special external form mostly, and the making of giving heat exchange equipment brings many inconvenience such as the disposal to the deflection plate of bellows, outer barrel;
7, this four big class heat exchanger tube all passes through cold working, has residual stress on the body, medium by the time can form turbulent flow, strengthened the local corrosion of heat exchanger tube, so caused certain negative effect the service life of heat exchanging device equipment.
Heat exchanger tube of the prior art has entered a technical bottleneck for above-mentioned reasons, and heat exchange area, heat exchange efficiency are difficult to increase substantially again, have restricted the development of heat exchanger, are difficult to satisfy the demand in market.
Therefore, those skilled in the art is devoted to develop the high heat exchanger tube of a kind of heat exchange efficiency always.
The utility model content
Because the above-mentioned defective of prior art, technical problem to be solved in the utility model provides the high heat exchanger tube with holes of a kind of heat exchange efficiency.
For achieving the above object, the utility model provides a kind of heat exchanger tube with holes, comprises outer tube at least, and the inside of described outer tube is medium channel; Be provided with heat exchanger components in the described medium channel, described heat exchanger components is provided with at least one through hole; Described heat exchanger components with described medium channel be divided into the direct heat transfer district of described outer tube heat exchange and with the indirect heat exchange district of described heat exchanger components heat exchange; Be positioned at the heat transferring medium exchange heat energy of the heat transferring medium in described indirect heat exchange district by described heat exchanger components and described direct heat transfer district.
Preferably, described heat exchanger components is a pipe in, and described interior pipe is fixedly installed in the described outer tube.
Preferably, described interior pipe is connected to form by a plurality of curved surfaces.Further, described a plurality of curved surfaces is the continuous cold rolling machined surface that described interior pipe obtains through press process.
Preferably, the cross section of described interior pipe is a polygon.
Preferably, also comprise the joint portion that fits tightly with described outer tube on the described heat exchanger components.
Preferably, described outer tube and/or described heat exchanger components are the metal welded tube.Further, described outer tube and described in pipe be the metal welded tube and when the state of coaxial inside and outside fit, the longitudinal seam of described outer tube shifts to install in a circumferential direction with the longitudinal seam of described interior pipe.
Preferably, described through hole has a plurality of, be array be arranged on described on the tube wall of pipe.Further, described through hole is O shape hole, or star-shaped aperture, or polygonal hole.
Heat exchanger tube with holes of the present utility model is compared with the heat exchanger tube of equivalent diameter in the prior art owing to be provided with heat exchanger components in outer tube, and heat exchange area has increased several times.
Further, above-mentioned heat exchanger components also is divided into the medium channel in the outer tube near the direct heat transfer district of outer tube wall and the indirect heat exchange district of close outer tube hub.Heat exchanger tube with holes of the present utility model is in heat exchanging process, when heat transferring medium passes through in medium channel, near the heat transferring medium in the direct heat transfer district of outer tube wall by outer tube wall directly with outer tube another medium heat exchange outward, heat exchange efficiency and prior art that should the zone in the medium channel be basic identical.The utility model is owing to be provided with heat exchanger components in outer tube, can also form heat exchange by the heat transferring medium in heat exchanger components and the direct heat transfer district near the heat transferring medium in the indirect heat exchange district of outer tube hub, again by this another medium heat exchange that this portion of energy and outer tube is outer of the heat transferring medium in the direct heat transfer district, so improved greatly in the medium channel should the zone heat exchange efficiency.
Especially, heat exchanger with holes of the present utility model is because heat exchanger components is provided with through hole, and the part heat transferring medium in indirect exchange district can enter direct exchange area, has improved heat exchange efficiency greatly.Therefore heat exchanger tube with holes of the present utility model is roughly the several times of existing heat exchanger tube on whole heat exchange efficiency, be much higher than existing heat exchanger tube.
It is raw material that the utility model also adopts welded tube first, and the cost of welded tube is lower at least by about 20% than the cost that is used as the raw-material seamless pipe of heat exchanger tube in the prior art, thereby the utility model has reduced the manufacturing cost of heat exchanger tube significantly.
And, heat exchanger tube with holes of the present utility model has smooth outer surface owing to outer tube, when making heat exchange equipment, and the good sealing effect of heat exchanger tube with holes and section of jurisdiction, be more suitable for the manufacturing technology of existing heat exchange equipment, be much higher than existing four big class heat exchanger tubes in its projected life and service life.
Heat exchanger tube with holes of the present utility model, have simple in structure, cost is low, makes beneficial effects such as facility, is applicable to the pipe of using that is used as high-performance heat exchanger or heat transmission equipment in the multiple industries such as oil, chemical industry, chemical fertilizer, boiler, pharmacy, food, electric power, nuclear energy, environmental protection, heat supply.
Description of drawings
Fig. 1 is the structural representation of a kind of T type barrel in the prior art;
Fig. 2 is the structural representation of a kind of bellows in the prior art;
Fig. 3 is the structural representation of a kind of interior ripple male-pipe in the prior art;
Fig. 4 is the structural representation of a kind of interior barrel in the prior art;
Fig. 5 is the cross-sectional structure schematic diagram of the embodiment 1 of heat exchanger tube with holes of the present utility model;
Fig. 6 is the side-looking structural representation of the interior pipe in embodiment illustrated in fig. 5;
Fig. 7 is the cross-sectional structure schematic diagram of the embodiment 2 of heat exchanger tube with holes of the present utility model;
Fig. 8 A is the cross-sectional structure schematic diagram of heat exchanger tube with holes one embodiment of the present utility model;
Fig. 8 B is the cross-sectional structure schematic diagram of heat exchanger tube with holes one embodiment of the present utility model;
Fig. 8 C is the cross-sectional structure schematic diagram of heat exchanger tube with holes one embodiment of the present utility model;
Fig. 8 D is the cross-sectional structure schematic diagram of heat exchanger tube with holes one embodiment of the present utility model;
Fig. 8 E is the cross-sectional structure schematic diagram of heat exchanger tube with holes one embodiment of the present utility model;
Fig. 8 F is the cross-sectional structure schematic diagram of heat exchanger tube with holes one embodiment of the present utility model;
Fig. 8 G is the cross-sectional structure schematic diagram of heat exchanger tube with holes one embodiment of the present utility model;
Fig. 8 H is the cross-sectional structure schematic diagram of heat exchanger tube with holes one embodiment of the present utility model;
Fig. 8 I is the cross-sectional structure schematic diagram of heat exchanger tube with holes one embodiment of the present utility model;
Fig. 8 G is the cross-sectional structure schematic diagram of heat exchanger tube with holes one embodiment of the present utility model;
Fig. 8 K is the cross-sectional structure schematic diagram of heat exchanger tube with holes one embodiment of the present utility model.
The specific embodiment
Be described further below with reference to the technique effect of accompanying drawing, to understand the purpose of this utility model, feature and effect fully design of the present utility model, concrete structure and generation.
Embodiment 1:
Heat exchanger tube with holes of the present utility model is one to have the metal tube of certain-length, mainly comprises the outer tube 1 of metal and is arranged on the interior pipe 2 of outer tube 1 inside, and both closely cooperate, and fixedly install together.
As shown in Figure 5, in the present embodiment, outer tube 1 is a metal welded tube, as austenitic stainless steel welded tube, carbon steel welded tube, titanium or titanium alloy welded tube, nickel and nickel alloy welded tube, or austenite-ferrite dual phase steel welded tube etc.The inside and outside surface of outer tube 1 is smooth surface.
The inside of outer tube 1 forms the medium channel of heat transferring medium circulation, pipe 2 in also being provided with.Interior pipe 2 is as the heat exchanger components in the outer tube 1, with outer tube 1 common formation heat exchanger tube with holes of the present utility model.In the present embodiment, interior pipe 2 also is a metal welded tube.
Particularly, the interior pipe 2 in the present embodiment is to be adopted between continuous 21,4 curved surfaces 21 of 4 curved surfaces that press process technology forms by corner 22 connections of 4 circular arcs by the metal welded tube of a circle, and each curved surfaces is a cold rolling machined surface.
The heat exchange area of above-mentioned heat exchanger tube with holes has increased about 5 times than the heat exchanger tube of equivalent diameter in the prior art.
The corner 22 of circular arc will have certain radian, and according to the difference of outer tube 1 diameter, preferably adopting knuckle radius is the 2-10 millimeter.Guaranteed that so promptly inner and outer pipe has enough fit contacts area, guaranteed the friction tight firm and integraty of inner and outer pipe again; Also avoided because the existence of sharp comer adds the inwall that scratches outer tube 1 man-hour at hot jacket.
Further, outer tube 1 and interior pipe 2 are when the state of coaxial setting and inside and outside fit, and the longitudinal seam on longitudinal seam on the outer tube 1 and the interior pipe 2 shifts to install (not shown among Fig. 5) in a circumferential direction.
Preferably, the angle of dislocation is 90 °.Certainly, in other embodiments, also can select for example 30 °, 60 °, 150 °, 180 ° equal angles.
In addition, also be provided with at least one through hole on the heat exchanger components.Preferably, as shown in Figure 6, also be provided with a plurality of through holes 23 that are array on the interior pipe 2.Further, through hole is O shape hole, or star-shaped aperture, or polygonal hole.
Interior pipe 2 as heat exchanger components is divided into several zones with the medium channel in the outer tube 1.From cross section, in the present embodiment in pipe 2 be connected to form by four curved surfaces 21, outer tube 1 in, formed direct heat transfer district 31 and indirect heat exchange districts 32 that are positioned at outer tube 1 center of four close outer tubes 1 so altogether.When heat transferring medium is done heat exchange in above-mentioned heat exchanger tube with holes, can identical heat transferring medium be arranged equidirectional circulation in four direct heat transfer districts 31 and the indirect heat exchange district 32, with another outer Medium Exchange heat of outer tube 1.
The heat transferring medium in the direct heat transfer district 31 and the direct heat-shift of tube wall of outer tube 1, its heat exchange is more abundant, and therefore the heat exchange efficiency and the prior art in four direct heat transfer districts 31 are basic identical.
But above-mentioned heat exchanger tube with holes of the present utility model has also formed an indirect heat exchange district 32 owing to be provided with heat exchanger components in outer tube 1.Heat transferring mediums in the indirect heat exchange district 32 do not have directly with the tube wall of outer tube 1 and contact, but with four curved surfaces 21 heat-shifts as the interior pipe 2 of heat exchanger components.
The heat of the heat transferring medium in the indirect heat exchange district 32 exchanges on the heat transferring medium in four direct heat transfer districts 31 that are arranged in the outside by four curved surfaces 21, exchanges on another medium outside the outer tube 1 again.Like this, the utility model is by means of heat exchanger components, makes to be positioned at outer tube 1 center, also to participate in fully in the heat transfer process with heat transferring medium that outer tube 1 does not have the indirect heat exchange district 32 that directly contacts, improved the heat exchange efficiency of heat exchanger tube widely.
Further, owing to also offer through hole on the heat exchanger components in the utility model, the part heat transferring medium in indirect exchange district can flow into direct exchange area, has further improved the heat exchange effect of heat exchanger components.
As the interior pipe 2 in the present embodiment, the beneficial effect of concaved circular cambered surface is in adopting, and not only can improve the heat exchange area of heat exchanger tube significantly, has improved the heat exchange efficiency of heat exchanger tube; Can also strengthen the flow and the flow velocity of heat transferring medium in the indirect heat exchange district 32, also improve the heat exchange efficiency of heat exchanger tube.Further, also improve the stress of heat exchanger tube under the heat transferring medium effect, strengthened the rigidity of interior pipe 2.
In corner 22 places of pipe on 2 form the joint portion, fit tightly with the inwall of outer tube 1, form the relation that fixedly installs.In theory, the gap that requires to fit tightly is zero.Certainly, in the practical operation, can set the actual detection data.
Heat exchanger tube with holes of the present utility model is not also owing to have cold working substantially, so internal structure stress eliminates substantially, and anti-fouling tendency, corrosion resistance are better.
The utility model also has simple in structure, and cost is low, makes more beneficial effect such as facility.
Heat exchanger tube of the prior art has particular external surface shape (such as spiral, T groove, ripple) mostly, and when making heat exchange equipment, being connected of heat exchanger tube of the prior art and tube sheet must the increase linkage section; The gap is bigger between heat exchanger tube and the deflection plate, and stationarity is poor.And heat exchanger tube with holes of the present utility model is more suitable for the manufacturing technology of traditional heat exchangers because outer tube has smooth outer surface, is much higher than existing four big class heat exchanger tubes in its projected life and service life.
Consider the needs in the technology of follow-up making heat exchange equipment, with the condition of tube sheet welding under, the outer tube 1 of heat exchanger tube with holes of the present utility model can be at 0.5-3mm than interior pipe 2 extension elongations, and heat exchanger tube with holes and tube sheet combine together or guarantee enough leg size height when guaranteeing welding.With tube sheet be under the condition of expand tube, outer tube 1 of the present utility model can be controlled at about 40mm than interior pipe 2 extension elongations, is beneficial to the reliability of expand tube operation.
According to client's needs, the entire length of heat exchanger tube of the present utility model can be chosen between tens of rice at 0 meter.Certainly, if the reasonable disposition heat-treatment furnace, the entire length of heat exchanger tube of the present utility model can also be in random length, and is not subject to the specification of cold working equipment.
If adopt online tube-making process, the limitation of heat exchanger tube with holes of the present utility model aspect length is very little, as long as attached with the cutting work step, substantially can be fully realizes its length requirement according to client's demand.
In other embodiments, also only one of outer tube or interior pipe adopt welded tube, and another adopts seamless metal straight collimator or other common metal pipes.
Embodiment 2:
The structure of present embodiment and embodiment 1 is basic identical, comprises outer tube 1, interior pipe 2, and institute's difference is that as shown in Figure 7, the shape of cross section of interior pipe 2 is a triangle, has formed three direct heat transfer districts 31 and an indirect heat exchange district 32 in outer tube 1.
In other embodiments, the cross section of interior pipe 2 can have various ways.The outer tube 1 shown in Fig. 8 A, Fig. 8 B, Fig. 8 C, Fig. 8 D, Fig. 8 E, Fig. 8 F, Fig. 8 G, Fig. 8 H, Fig. 8 I, Fig. 8 G, Fig. 8 K and the various versions of interior pipe 2 are the embodiment of heat exchanger tube with holes of the present utility model.
In the above-mentioned various embodiment, through hole can be on heat exchanger components, offered, essentially identical technique effect can be realized.
Heat exchanger tube with holes of the present utility model is not owing to there is a large amount of cold working operations, thereby reduced the production cost of heat exchanger tube significantly, improved manufacturing efficient, has stable crudy.Owing to do not have cold working substantially on the tube wall, so inwall do not have residual stress, and its anti-fouling tendency, corrosion resistance are better.
From the tubulation apparatus cost relatively, must have special machined, cold working equipment of existing heat exchanger tube production.And heat exchanger tube with holes of the present utility model only need be done simple transformations such as mould on existing tubulation apparatus, just can produce the interior pipe that heat exchanger tube with holes of the present utility model adopts.Therefore, heat exchanger tube with holes of the present utility model has reduced the investment in factory building and place, has reduced investment, the place area occupied need not enlarge, instant effect, beneficial effects such as production efficiency height, its production efficiency are approximately the several times of existing technology, are much higher than the processing technology of existing heat exchanger tube.
In sum, described in this specification is several preferred embodiment of the present utility model, and above embodiment is only unrestricted in order to the explanation the technical solution of the utility model.All technical staff in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be within claim protection domain of the present utility model.

Claims (10)

1. a heat exchanger tube with holes comprises outer tube at least, and the inside of described outer tube is medium channel; It is characterized in that: be provided with heat exchanger components in the described medium channel, described heat exchanger components is provided with at least one through hole; Described heat exchanger components with described medium channel be divided into the direct heat transfer district of described outer tube heat exchange and with the indirect heat exchange district of described heat exchanger components heat exchange; Be positioned at the heat transferring medium exchange heat energy of the heat transferring medium in described indirect heat exchange district by described heat exchanger components and described direct heat transfer district.
2. heat exchanger tube with holes as claimed in claim 1 is characterized in that: described heat exchanger components is a pipe in, and described interior pipe is fixedly installed in the described outer tube.
3. heat exchanger tube with holes as claimed in claim 2 is characterized in that: pipe is connected to form by a plurality of curved surfaces in described.
4. heat exchanger tube with holes as claimed in claim 3 is characterized in that: described a plurality of curved surfaces are the continuous cold rolling machined surface that described interior pipe obtains through press process.
5. heat exchanger tube with holes as claimed in claim 2 is characterized in that: the cross section of pipe is a polygon in described.
6. as the arbitrary described heat exchanger tube with holes of claim 1 to 5, it is characterized in that: also comprise the joint portion that fits tightly with described outer tube on the described heat exchanger components.
7. as the arbitrary described heat exchanger tube with holes of claim 1 to 5, it is characterized in that: described outer tube and/or described heat exchanger components are the metal welded tube.
8. as the arbitrary described heat exchanger tube with holes of claim 2 to 5, it is characterized in that: described outer tube and described interior pipe are the metal welded tube and when the state of coaxial inside and outside fit, the longitudinal seam of the longitudinal seam of described outer tube and described interior pipe shifts to install in a circumferential direction.
9. as the arbitrary described heat exchanger tube with holes of claim 2 to 5, it is characterized in that: described through hole has a plurality of, be array be arranged on described on the tube wall of pipe.
10. heat exchanger tube with holes as claimed in claim 9 is characterized in that: described through hole is O shape hole, or star-shaped aperture, or polygonal hole.
CN2010206338767U 2010-11-30 2010-11-30 Heat exchange tube with hole Expired - Fee Related CN201876166U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206338767U CN201876166U (en) 2010-11-30 2010-11-30 Heat exchange tube with hole

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Application Number Priority Date Filing Date Title
CN2010206338767U CN201876166U (en) 2010-11-30 2010-11-30 Heat exchange tube with hole

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CN201876166U true CN201876166U (en) 2011-06-22

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105953458A (en) * 2016-05-18 2016-09-21 山东阿尔普尔节能装备有限公司 Air source absorption type heat pump device combining fuel gas
CN112815744A (en) * 2021-01-13 2021-05-18 瀚润联合高科技发展(北京)有限公司 Three-dimensional cooling evaporation condensation heat exchanger
CN112944971A (en) * 2021-03-14 2021-06-11 北京高鑫伟业科技有限公司 Heat exchange unit and application thereof
JP2023111599A (en) * 2022-01-31 2023-08-10 株式会社ノーリツ heat pump system
JP2023137377A (en) * 2022-03-18 2023-09-29 セイコーエプソン株式会社 Passage unit and liquid discharge device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105953458A (en) * 2016-05-18 2016-09-21 山东阿尔普尔节能装备有限公司 Air source absorption type heat pump device combining fuel gas
CN112815744A (en) * 2021-01-13 2021-05-18 瀚润联合高科技发展(北京)有限公司 Three-dimensional cooling evaporation condensation heat exchanger
CN112944971A (en) * 2021-03-14 2021-06-11 北京高鑫伟业科技有限公司 Heat exchange unit and application thereof
JP2023111599A (en) * 2022-01-31 2023-08-10 株式会社ノーリツ heat pump system
JP2023137377A (en) * 2022-03-18 2023-09-29 セイコーエプソン株式会社 Passage unit and liquid discharge device

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C17 Cessation of patent right
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Granted publication date: 20110622

Termination date: 20121130