CN108507238A - evaporator and its application in heat pump unit - Google Patents
evaporator and its application in heat pump unit Download PDFInfo
- Publication number
- CN108507238A CN108507238A CN201810199561.7A CN201810199561A CN108507238A CN 108507238 A CN108507238 A CN 108507238A CN 201810199561 A CN201810199561 A CN 201810199561A CN 108507238 A CN108507238 A CN 108507238A
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- CN
- China
- Prior art keywords
- tube
- heat exchanger
- evaporator
- adapter
- sheet
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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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
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/04—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of rubber; of plastics material; of varnish
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
- F28F9/14—Arrangements for sealing elements into header boxes or end plates by dismountable joints by force-joining
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2230/00—Sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/16—Safety or protection arrangements; Arrangements for preventing malfunction for preventing leakage
Abstract
The invention discloses a kind of evaporator and its applications, for solving the problems, such as that heat exchanger tube welding position is easy leakage.It includes shell side and tube side, wherein be passed through in shell side is working medium I, it is medium II to be passed through in tube side, between heat exchanger tube both ends and tube sheet it was tight fit in the evaporator, and heat exchanger tube both ends end extends respectively on the outside of tube sheet and exposed length is not less than tube plate thickness, it further include adapter, taper seal, locking nut, wherein, the adapter includes flange portion and cylindrical portion, it is cone cylinder shape inside the cylindrical portion and is filled with taper seal, the flange portion and Tube-sheet Welding are fixed, the locking nut is fastened on the cylindrical portion and compresses taper seal.Be not in leakage to be welded to connect between adapter and tube sheet in the present invention, meanwhile, level-one tension fitted seal and secondary seal sleeve seal are existed simultaneously between heat exchanger tube and adapter and tube sheet, ensure that leakage does not occur between tube side and shell side.
Description
Technical field
The invention is related to heat pump vaporizer technology field, in particular by the vaporizer technology of non-solder Technical form.
Background technology
Heat pump is a kind of to make the device that heat flows to from low level heat energy high-order heat source using high potential.Heat pump techniques or one
The power-saving technology of kind low temperature heat.Heat pump unit is usually by compressor, condenser, evaporator, throttling set and automatically controlled system
System composition, the wherein effect of evaporator in the unit is most important, and when principle, refrigerant is converted in evaporator by liquid
Gaseous state, completes heat absorption, and gaseous refrigerant enters condenser after being inhaled into compressor compresses, completes heat release within the condenser, be used for
The normal-temperature waters such as heating, water heating, within the condenser condensing agent liquid is converted to by high-pressure gaseous, liquid using throttling set
Evaporator is entered, the cycle of refrigerant is completed, refrigerant is recycled in the process.
In conventional evaporator, generally use has corrosive refrigerant, for example, sewage, industrial wastewater, brine waste,
Anti-icing fluid etc. may freeze when heat exchanger tube, the tube sheet etc. inside refrigerating medium touches heat exchanger during long-term operation
Agent leaks, refrigerant leakage, and refrigerant is gently then caused to reduce pollution environment, heavy then unit is caused to scrap.
Applicant is by the way that the study found that in conventional evaporator, the position of generation refrigerant leakage, which occurs mainly in, to be changed
Heat pipe and tube sheet contact site, further study show that, heat exchanger tube is usually copper pipe or stainless steel tube, in order to increase heat exchange effect
Stainless steel tube or copper pipe are usually improved total heat transfer coefficient, that is to say, that from design principle by fruit by reducing wall thickness
For, the tube wall of heat exchanger tube gets over Bao Yuehao, currently, can be inquired according to known technology and handbook, evaporator is used not
Rust steel steel pipe is used for the thin-wall pipes of 0.3mm~0.8mm, and the technology that copper pipe tube wall has been realized in 0.8mm~1mm is prominent
It is broken, that is to say, that can effectively improve the overall heat exchange performance of evaporator by using thin-wall tube.
Tube sheet is the plank for fixing heat exchanger tube, is usually located at the both ends of shell, according to the material selection of heat exchanger tube, is led to
The material of normal tube sheet is identical as the material of heat exchanger tube, to ensure that overall stability (avoids out after heat exchanger tube and Tube-sheet Welding
Phenomena such as existing electrochemical corrosion).
Heat exchanger tube and the mode of tube sheet generally use welding are attached, for example, being connected using brazing between copper pipe and copper coin
It connects, is connected using stainless steel tube between stainless steel tube and stainless steel tube.
But welding point position herein is connect different from common copper-brazing or stainless steel-is stainless steel welded, has
The welder of experience knows that welding node position herein is easiest to leak, and traditional analysis result is：Pad
Other than poor by the tube side of evaporator and shell side pressure, also tube plate deformation (expanding with heat and contract with cold), heat exchanger tube deform (expanding with heat and contract with cold),
Additionally, due to having stress concentration inside fillet-welded joint itself, that is, there is welded stress.
It is applicant's understanding that having gone out except above-mentioned reason, there are one important reasons by long-standing neglect：That is, tube wall
The difference in thickness of wall thickness and tube sheet is big, and applicant draws the following conclusions after analyzing tens of evaporator failure causes：
The position for being easiest to leak is the welding position of heat exchanger tube, and the tube wall of usual heat exchanger tube itself is very thin,
During welding, be easy to causeing heat exchanger tube perforation, (overvoltage test can detected leakage and remedy accordingly and arrange
Apply), pad tube wall it is thinning (being not easy to detect), during long service, born tube side and shell side and rise the pressure such as release
Fluctuation and temperature change weld the stomata, slag inclusion, micro-crack of generation under similar fatigue load effect, can extend rapidly, cause
Leakage, especially when throat depth is thin, ability to bear is more insufficient, causes to perforate, therefore, it is necessary to pair with pad position, especially
It is that the heat exchanger tube at pad position is protected, and can just effectively reduce the risk of leakage during heat exchanger is on active service.
The technology of the present invention leakage problem caused by for solving above-mentioned welding, specific implementation will be subsequent
Give detailed introduction in embodiment part.
Invention content
In order to solve the deficiencies in the prior art, the present invention provides a kind of evaporator of heat pump unit, existing for solving
The problem of pad is easy to happen dielectric leakage between exchanger tubes and tubesheets in evaporator, heat exchanger.
The technical solution adopted by the present invention to solve the technical problems is：
Evaporator, including shell side and tube side, it is working medium I to be wherein passed through in shell side, and it is medium II to be passed through in tube side,
It is characterized in that,
It was tight fit between heat exchanger tube both ends and tube sheet in the evaporator, and heat exchanger tube both ends end is prolonged respectively
It extends on the outside of tube sheet and exposed length is not less than tube plate thickness,
Further include adapter, taper seal, locking nut, wherein the adapter includes flange portion and cylindrical portion, institute
It states inside cylindrical portion and is cone cylinder shape and is filled with taper seal, the flange portion and Tube-sheet Welding are fixed, the locking nut
It is fastened on the cylindrical portion and compresses taper seal.
Further, the adapter is concentric corresponding with heat exchanger tube.
Further, the heat exchanger tube is stainless steel tube or copper pipe of the thickness at 0.2 millimeter~0.8 millimeter.
Further, heat exchange the ratio between the thickness of pipe wall and tube plate thickness are 1:60~1:30.
Further, the thickness of the adapter is equal to the thickness of tube sheet.
Further, the assembly between the exchanger tubes and tubesheets uses cold and hot assembling method.
Further, the fastening nut, adapter, the metal that exchanger tubes and tubesheets are same material.
Further, it is import, outlet and the sewage draining exit of medium II in tube side lower part, is isolated by a partition board, the pipe
Gas vent is arranged in the top of journey；Refrigerant inlet, refrigerant outlet, safety relief valve and heat are provided on the box hat of the shell side
Galvanic couple.
Further, plastic lining layer or polytetrafluorethylecoatings coatings are sprayed on the inner wall of the shell side and tube side.
The evaporator is applied to the evaporation link in heat pump unit.
The beneficial effects of the invention are as follows：
1, readily replaceable, in the present invention, without direct welding node between heat exchanger tube and tube sheet, but pad is shifted
To adapter and tube sheet peripheral region, when needing replacing heat exchanger tube, it is thus only necessary to by the bridgeware and tube sheet of fixed heat exchanger tube
Between solder joint polishing eliminate, then, heat exchanger tube is taken out, after taking-up, the heat exchanger tube more renewed, bridgeware can weigh
It is multiple to utilize.When traditional replacing heat-exchange tube, the hole shape of tube sheet can be destroyed, the breakage of tube sheet is caused.
2, be not in leakage between adapter and tube sheet to be welded to connect, meanwhile, heat exchanger tube and adapter and tube sheet it
Between exist simultaneously level-one tension fitted seal and secondary seal sleeve seal, be sealed, it is ensured that between tube side and shell side not
Leakage occurs.
3, tube end is subjected to expansion tube process processing, after processing, end Strength Changes are little, but are used in inside
After cold setting method is packed into a stainless steel sleeve, the locking nut in outside can be coordinated to carrying out local enhancing intensity at tube expansion
The clamping action under greater strength may be implemented with taper seal.
4, welding requirements is reduced, the welding quality requirement between traditional exchanger tubes and tubesheets is high, by that will weld
Point is transferred between bridgeware and tube sheet, reduces the quality requirement of welding, that is, common welding can meet technology requirement.
5, pass through the use of stainless steel sleeve so that the pipe thickness of heat exchanger tube is obtained further reducing and is possibly realized, and is managed
By upper, the pipe thickness of stainless steel can be reduced to 0.2 millimeter or so in the present invention, also just say, 0.2 millimeter of stainless steel tube
It can smoothly be used in this evaporator.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of original condenser.
Fig. 2 is the welding connection node figure (upper end) between heat exchanger tube and tube sheet in original condenser.
Fig. 3 is the welding connection node figure (lower end) between heat exchanger tube and tube sheet in original condenser.
Fig. 4 is the welding connection node figure (upper end) between heat exchanger tube and tube sheet in embodiment one.
Fig. 5 is the welding connection node figure (lower end) between heat exchanger tube and tube sheet in embodiment one.
Fig. 6 is the welding connection node figure between heat exchanger tube and tube sheet in embodiment two.
Fig. 7 is the welding connection node figure between heat exchanger tube and tube sheet in embodiment three.
Fig. 8 is the stereogram (part) of heat exchanger tube in example IV.
In figure：100 shell sides, 110 box hats, 111 refrigerant inlets, 112 refrigerant outlets, 113 thermocouples,
200 tube sides, gas vent 210,
300 heat exchanger tubes, 310 Peng's big ends, 320 helix tubes, 330 straight tubes,
400 tube sheets,
510 adapters, 511 flange portions, 512 cylindrical portions, 513 threaded portions, 520 taper seals, 530 locking nuts,
600 stainless steel sleeves.
Specific implementation mode
The design principle and operational effect of the present invention are explained in detail below by the present embodiment：
With reference to figure 1, in this evaporator, including shell side 100 and tube side 200, the working medium being wherein passed through in shell side are refrigeration
Agent, the medium being passed through in tube side are heating return water, wherein be provided on the box hat 110 of shell side 100 refrigerant inlet 111,
Refrigerant outlet 112, safety relief valve and thermocouple 113, wherein refrigerant inlet 111 is located at top, refrigerant outlet 112
Positioned at lower part, spoiler (being to show in Fig. 1) can also be increased in shell side so that during refrigerant is that flows from above to below
Path extends, and increases transfer path.
In tube side 200, lower part is the inlet and outlet of aqueous medium, is isolated by a partition board, and the first chamber is labeled as
The top of A1 and third chamber A3, tube side 200 are the second chamber A2, realize the commutation of aqueous medium, and set on the shell of the second chamber A2
It puts gas port 210 and is provided with sewage draining exit on the shell of the first chamber and third chamber for gas extra in aqueous medium to be discharged
(not indicated in Fig. 1), for impurity extra in aqueous medium to be discharged.
Plastic lining layer or polytetrafluorethylecoatings coatings can be sprayed on the inner wall of shell side 100 and tube side 200 as needed, are increased
Strong resistance to corrosion.
In traditional evaporator, being welded to connect referring to figs. 2 and 3 between heat exchanger tube 300 and tube sheet 400, that is, exchanging heat
The both ends of pipe are welded to connect with tube sheet by welding.
The present invention's thes improvement is that：
With reference to figure 4 and Fig. 5, by taking the heat exchanger tube 300 of stainless steel as an example (hereinafter referred to as stainless steel tube), the stainless steel tube
Wall thickness be 0.5 millimeter, be in light wall pipe scope, tube sheet use 30 millimeters of stainless steel plates, wherein heat exchange thickness of pipe wall and tube sheet wall thickness it
Than being 1:60, when using conventional bonding technique connection, heat exchanger tube is susceptible to solder joint perforation, deformation, thinning problem.The present invention
In tube sheet flange arrangement is formed by mach form, tube sheet is connected as one with shell side box hat by welding,
It is evenly provided on tube sheet 400：Circular hole, the existing effect of the circular hole are to provide installation perforation for the installation of heat exchanger tube.Into
One step, in tube sheet outer fix, chamfering is carried out to circular hole.
Heat exchanger tube 300：Its length is more slightly longer than traditional length, that is, after heat exchanger tube penetrates into the perforation at both ends, heat exchanger tube
Expose 3-5 centimetres of length respectively in 300 both ends, that is to say, that reserve enough fixation ends.
The packaging technology of heat exchanger tube and tube sheet is as follows：
First, the assembly between exchanger tubes and tubesheets use cold and hot assembling method, that is, by tube sheet be heated to 100 degrees Celsius-
Between 150 degrees Celsius, while tube end is refrigerated to subzero 20 degrees centigrade, is then rapidly inserted into tube end
In corresponding circular hole, the length in reserve of heat exchanger tube is positioned by locating piece, wait changing with after tube sheet natural cooling, that is, is completed
Mistake tight fit between the two forms machinery and crosses tight fit, has certain anti-permeability performance.
Then, prepare adapter 510, taper seal 520, locking nut 530, wherein adapter 510 uses stainless steel
Bar mechanical processing molding, including flange portion 511 and cylindrical portion 512, in cylindrical portion, inside is cone cylinder shape, that is, from distal end to method
Blue portion one end taper hole is gradually reduced, and is threaded portion 513 in cylindrical portion outer surface, wherein cylindrical portion 512 is nested on the outside of tube sheet
In tube end, and it is concentric corresponding with circular hole, it can be positioned, be ensured between adapter and heat exchanger tube by positioning mold
It is arranged concentrically, and flange portion 511 and tube sheet 400 is welded, with reference to figure 4 and Fig. 5, the thickness of above-mentioned adapter is much big
In the thickness of stainless steel tube, and, the thickness of the thickness of adapter 510 closer to tube sheet, that is, 30 millimeters or so, 510 He of adapter
The welding of tube sheet 400 being welded as between thick stainless steel, circular hole of the welding position on tube sheet is appropriate, by welding stress pair
The adverse effect of circular hole is reduced to zero, after welding, even if there is small weld defect, will not cause wearing for adapter or tube sheet
Hole, it is only necessary to the continuity for ensureing weld, due to not welded directly to stainless steel tube, so reducing weldering
Quality is connect, can be completed without special welding skill.By by the welding of stainless steel tube 300 and tube sheet be transformed to tube sheet 400 with
The welding of adapter 510, welding position be non-thin-wall construction position, even if desoldering will not cause to leak, avoid welding and
The problem of stainless steel tube solder joint position is easy to happen leakage during later stage runs.
Then taper seal is placed in the cone cylinder of adapter, and is pressed taper seal using fastening nut
Tightly, make its deformation, and then realize the sealing of heat exchanger tube and adapter.After taper seal is compressed by fastening nut, to adapter
Gap between heat exchanger tube carries out secondary seal, has good leak preventing effect, belongs to washer sealing.
Above-mentioned material selection, fastening nut 530, adapter 510 select the material of same material with tube sheet 400, such as stainless
Steel.
Embodiment two
With reference to figure 6, swollen hole carried out to the end of stainless steel tube 300, behind swollen hole, is in the both ends formation length of stainless steel tube
Slightly larger than the Peng great Duan 310 of 2 times of tube plate thicknesses, the corresponding size for behind swollen hole of circular hole on tube sheet 400, remaining installation steps
Substantially as in the first embodiment, before the outer fastening nut of fastening, increase a step, that is, by the stainless steel sleeve 600 of a subzero tens of degree
It is tucked into bulb, is sleeve identical with stainless steel tube specification to stainless steel sleeve, after filling in, fastening nut is fastened,
After fastening, stainless steel sleeve 600 heats up, you can and the Peng great Duan that heat pipe is exchanged from inside carries out swelling, meanwhile, it can effectively avoid
The bulb of thin-walled is locally deformed under the locking effect of fastening nut, and then during increase operation, the anti-loading at this
Ability.During carrying out long service, bulb position herein does not deform.
Embodiment three
With reference to figure 7, on the basis of embodiment one, it is that the deformation of embodiment two and technology extend, increases a stainless steel
Set 600, there are one disks for stainless steel sleeve end tool, after fastening nut fastening, are carried out to stainless steel sleeve using welding manner
Welding, that is, be welded to connect between stainless steel sleeve 600 and fastening nut 530, putting for fastening nut can be increased after welding
Loose energy endurance.Meanwhile the end for exchanging heat pipe is limited, and axial motion is prevented.
Example IV
In above three embodiments, above-mentioned stainless steel tube is straight tube, that is to say, that is straight up and down pipeline.This
In embodiment, in order to increase heat transfer effect, by the intermediate position spiral winding of heat exchanger tube 300, formed middle part be helix tube 320,
Both ends are the pattern of straight tube 330, and with reference to figure 8, wherein straight-tube portion may be and be formed behind swollen hole to expand end.During operation,
Heat exchanger tube expands with heat and contract with cold under effect, by the self-deformation of helix tube, can be produced to avoid between heat exchanger tube and taper seal
The stress of raw opposite sliding, ensures that sealing is in optimum state.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the model of the present invention
It encloses and is defined, under the premise of not departing from design spirit of the present invention, various changes of the relevant technical staff in the field to the present invention
Shape and improvement should all expand in the protection domain as determined by claims of the present invention.
Claims (10)
1. evaporator, including shell side and tube side, it is working medium I to be wherein passed through in shell side, and it is medium II to be passed through in tube side, special
Sign is,
It was tight fit between heat exchanger tube both ends and tube sheet in the evaporator, and heat exchanger tube both ends end extends respectively to
On the outside of tube sheet and exposed length is not less than tube plate thickness,
Further include adapter, taper seal, locking nut, wherein the adapter includes flange portion and cylindrical portion, the circle
It is cone cylinder shape inside canister portion and is filled with taper seal, the flange portion and Tube-sheet Welding is fixed, the locking nut fastening
In the cylindrical portion and taper seal is compressed.
2. evaporator according to claim 1, which is characterized in that the adapter is concentric corresponding with heat exchanger tube.
3. evaporator according to claim 1, which is characterized in that the heat exchanger tube is thickness at 0.2 millimeter~0.8 millimeter
Stainless steel tube or copper pipe.
4. evaporator according to claim 3, which is characterized in that heat exchange the ratio between the thickness of pipe wall and tube plate thickness are 1:60
~1:30.
5. evaporator according to claim 4, which is characterized in that the thickness of the adapter is equal to the thickness of tube sheet.
6. evaporator according to claim 1, which is characterized in that the assembly between the exchanger tubes and tubesheets is using cold and hot
Assembling method.
7. evaporator according to claim 1, which is characterized in that the fastening nut, adapter, exchanger tubes and tubesheets are
The metal of same material.
8. evaporator according to claim 1, which is characterized in that be import, outlet and the row of medium II in tube side lower part
Dirty mouth is isolated by a partition board, and gas vent is arranged in the top of the tube side；Be provided on the box hat of the shell side refrigerant into
Mouth, refrigerant outlet, safety relief valve and thermocouple.
9. evaporator according to claim 1, which is characterized in that on the inner wall of the shell side and tube side spray plastic lining layer or
Person's polytetrafluorethylecoatings coatings.
10. according to the evaporator described in claim 1 to 9, which is characterized in that the evaporator is applied in heat pump unit
Evaporate link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810199561.7A CN108507238B (en) | 2018-03-12 | 2018-03-12 | Evaporator and application thereof in heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810199561.7A CN108507238B (en) | 2018-03-12 | 2018-03-12 | Evaporator and application thereof in heat pump unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108507238A true CN108507238A (en) | 2018-09-07 |
| CN108507238B CN108507238B (en) | 2021-06-22 |
Family
ID=63376405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810199561.7A Active CN108507238B (en) | 2018-03-12 | 2018-03-12 | Evaporator and application thereof in heat pump unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN108507238B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486741A (en) * | 2020-04-22 | 2020-08-04 | 御隆膜科技南通有限公司 | Connecting structure of prefabricated joint type fluoroplastic heat exchange tube and tube plate and installation method thereof |
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| JP2002048489A (en) * | 2000-08-02 | 2002-02-15 | Inax Corp | Seal structure of pipe and tube plate |
| CN103217053A (en) * | 2012-01-18 | 2013-07-24 | 金沙 | Single pipe free telescopic structure of high-temperature air preheater |
| CN203772105U (en) * | 2014-03-20 | 2014-08-13 | 武汉东海石化重型装备有限公司 | Detachable type connection structure between heat exchange pipe and pipe plate |
| CN105202963A (en) * | 2015-09-29 | 2015-12-30 | 茂名重力石化机械制造有限公司 | Non-welding forced sealing structure for heat exchange tube and tube plate |
| CN205860851U (en) * | 2016-07-28 | 2017-01-04 | 珠海昊森万荣水处理科技有限公司 | The heat exchanger tube pipe bundle mounting structure of fast demountable |
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2018
- 2018-03-12 CN CN201810199561.7A patent/CN108507238B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002048489A (en) * | 2000-08-02 | 2002-02-15 | Inax Corp | Seal structure of pipe and tube plate |
| CN103217053A (en) * | 2012-01-18 | 2013-07-24 | 金沙 | Single pipe free telescopic structure of high-temperature air preheater |
| CN203772105U (en) * | 2014-03-20 | 2014-08-13 | 武汉东海石化重型装备有限公司 | Detachable type connection structure between heat exchange pipe and pipe plate |
| CN105202963A (en) * | 2015-09-29 | 2015-12-30 | 茂名重力石化机械制造有限公司 | Non-welding forced sealing structure for heat exchange tube and tube plate |
| CN205860851U (en) * | 2016-07-28 | 2017-01-04 | 珠海昊森万荣水处理科技有限公司 | The heat exchanger tube pipe bundle mounting structure of fast demountable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486741A (en) * | 2020-04-22 | 2020-08-04 | 御隆膜科技南通有限公司 | Connecting structure of prefabricated joint type fluoroplastic heat exchange tube and tube plate and installation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108507238B (en) | 2021-06-22 |
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