CN107726913A - Tube sheet, shell-and-tube heat exchanger and air conditioner - Google Patents
Tube sheet, shell-and-tube heat exchanger and air conditioner Download PDFInfo
- Publication number
- CN107726913A CN107726913A CN201711039868.2A CN201711039868A CN107726913A CN 107726913 A CN107726913 A CN 107726913A CN 201711039868 A CN201711039868 A CN 201711039868A CN 107726913 A CN107726913 A CN 107726913A
- Authority
- CN
- China
- Prior art keywords
- tube sheet
- seal groove
- tube
- predeformation
- curved surface
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 claims abstract description 24
- 238000004378 air conditioning Methods 0.000 claims description 14
- 230000000630 rising effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
-
- 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
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/06—Fastening; Joining by welding
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides a tube plate, a shell-and-tube heat exchanger and an air conditioner, wherein the tube plate comprises a first side surface and a second side surface which are opposite, the first side surface of the tube plate is used for being welded with a cylindrical shell, a partition plate sealing groove is formed in the second side surface of the tube plate, a pre-deformation structure is arranged on a groove body structure forming the partition plate sealing groove, and the pre-deformation structure is used for offsetting deformation of the tube plate caused by welding. This application sets up predeformation structure on the tube sheet, predeformation structure can offset because of the evagination volume that produces when tube sheet and casing welding are in the same place for the bottom surface that forms the groove structure of seal groove on the tube sheet after the welding still keeps straight, effectively improves the sealed effect between tube sheet and the end cover.
Description
Technical field
The present invention relates to air-conditioning adjusting means field, and in particular to a kind of tube sheet applied in air-conditioning, has the tube sheet
Shell-and-tube heat exchanger and air-conditioning.
Background technology
The heat-exchanging component of existing central air-conditioning includes housing, heat exchanger tube and tube sheet, leakes water in heat exchanger tube, is walked in housing cold
Matchmaker.The side of tube sheet is fixed together with case weld, is connected on tube sheet away from the side of housing with end cap, and with end cap it
Between formed sealing coordinate.The pore that passes through for heat exchanger tube is offered on tube sheet so that heat exchanger tube to be fixed in the housing.
After housing is together with Tube-sheet Welding, under the influence of welding stress, tube sheet produces deformation, influences tube sheet and end cap
Between sealing effectiveness, cause housing because can not effectively seal and leak or string water.
The content of the invention
In view of this, an object of the present invention is that providing one kind can effectively prevent from producing deformation because welding and operating
Tube sheet and with the tube sheet shell-and-tube heat exchanger and air-conditioning.
To reach above-mentioned purpose, on the one hand, the present invention uses following technical scheme：
A kind of tube sheet, the tube sheet include opposite first side and second side, and the first side of the tube sheet is used for
Together with the case weld of tubular, bulkhead seal groove is offered in the second side of the tube sheet, the dividing plate is close being formed
Predeformation structure is provided with the trough body structure of sealing groove, the predeformation structure is used to offset the tube sheet as caused by welding
Deformation.
Preferably, the bottom surface of the trough body structure is predeformation bottom surface, and the predeformation bottom surface forms the predeformation knot
Structure, the predeformation bottom surface are configured to, after the tube sheet is together with the case weld so that form the bulkhead seal groove
The bottom surface of trough body structure be plane.
Preferably, the predeformation bottom surface is curved surface, and the curved surface protrudes towards the housing side.
Preferably, the curved surface is the part on the face of cylinder, and the axis on the face of cylinder is vertical with the axis of the housing.
Preferably, radial direction or tangential extension of the bulkhead seal groove along the housing.
Preferably, the curved surface is to extend along the length in direction as the face of cylinder of chord length using the bulkhead seal groove
A part；And/or
The radius of the curved surface and the curved surface are along the relation between the axial largest deformation amount of the housingWherein R is the radius of the curved surface, and L extends along the length in direction, institute for the bulkhead seal groove
It is largest deformation amount of the curved surface along housing axial direction to state H.
Preferably, it is additionally provided with the second side of the tube sheet for the annular with the flange fitted seal on end cap
Seal groove；
After the tube sheet is together with the case weld, the bottom surface of the annular seal groove and the bulkhead seal groove
Bottom surface is generally aligned in the same plane.
Preferably, the depth capacity of the bulkhead seal groove and the difference of minimum-depth are more than or equal to 0.5mm.
For the above-mentioned purpose, on the other hand, the present invention uses following technical scheme：
A kind of shell-and-tube heat exchanger, tube sheet as described above is provided with the shell-and-tube heat exchanger.
For the above-mentioned purpose, another further aspect, the present invention use following technical scheme：
A kind of air-conditioning, shell-and-tube heat exchanger as described above is provided with the air-conditioning.
The application sets predeformation structure on tube sheet, and predeformation structure can be offset because together with tube sheet and case weld
Caused deformation so that the bottom surface of the trough body structure of formation bulkhead seal groove remains in that straight on the tube sheet after welding, has
Effect improves the sealing effectiveness between tube sheet and end cap.
Brief description of the drawings
By the description to the embodiment of the present invention referring to the drawings, above-mentioned and other purpose of the invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 is shown without setting the front view of the tube sheet of predeformation structure；
Fig. 2 is shown without the sectional view splitted before the Tube-sheet Welding of setting predeformation structure along bulkhead seal groove；
Fig. 3 splits along bulkhead seal groove after being shown without setting the tube sheet of predeformation structure together with case weld
Sectional view；
Fig. 4 shows the front view for the tube sheet that the specific embodiment of the invention provides；
Fig. 5 shows the sectional view splitted before the welding that the specific embodiment of the invention provides along bulkhead seal groove；
Fig. 6 show the specific embodiment of the invention provide tube sheet together with case weld after cutd open along bulkhead seal groove
The sectional view opened.
In figure：
1 ', housing；2 ', tube sheet；3 ', first side；4 ', second side；5 ', annular seal groove；6 ', bulkhead seal groove；
7 ', bottom surface；8 ', bottom surface；
1st, housing；2nd, tube sheet；3rd, first side；4th, second side；5th, annular seal groove；6th, bulkhead seal groove；7th, it is pre- to become
Shape bottom surface；8th, bottom surface；9th, bottom surface.
Embodiment
Below based on embodiment, present invention is described, it should be understood by one skilled in the art that provided herein
Accompanying drawing is provided to the purpose of explanation, and accompanying drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with the " comprising " in claims, "comprising" etc.
Word should be construed to the implication included rather than exclusive or exhaustive implication；That is, it is containing for " including but is not limited to "
Justice.
As shown in Figures 1 to 3, the first side 3 ' of tube sheet 2 ' of the prior art welds together with housing 1 ', tube sheet 2 '
Annular seal groove 5 ' is offered in upper and relative first side 3 ' second side 4 ', annular seal groove 5 ' and end cap are (in figure not
Show) on the flange (not shown) that sets form sealing and coordinate.Along the radial direction of housing 1 ' in the second side 4 ' of tube sheet 2 '
Direction is provided with the bulkhead seal groove 6 ' being connected with annular seal groove 5 ', bulkhead seal groove 6 ' and the dividing plate being arranged on end cap
(not shown) forms sealing structure.It has been found that before welding, form the bottom of the trough body structure of bulkhead seal groove 6 '
Face 7 ' is straight.After being welded, the stress distribution on tube sheet 2 ' is changed due to welding, results in bulkhead seal groove 6 '
The bottom surface 8 ' of trough body structure be changed into the curved surface protruded along the axis direction of housing 1 ' towards second side 4 ', and the size of middle part protrusion
It is maximum.After the completion of the housing 1 ' of different radii size welds with tube sheet 2 ', cause to form the trough body structure of bulkhead seal groove 6 '
The deformation quantity of bottom surface 8 ' reaches 0.5mm to 6mm, and the diameter of housing 1 ' is bigger, welds the formation bulkhead seal groove on back tube sheet 2 '
The deformation of the bottom surface 8 ' of 6 ' trough body structure is bigger.The bottom surface deformation of trough body structure causes the unevenness of bottom surface 8 ' beyond technique
Regulation, has a strong impact on the sealing effectiveness between tube sheet 2 ' and end cap.The part protruded can be with after the completion of bulkhead seal groove 6 ' welds
The dividing plate set on end cap is withstood on together, and then easily crushes sealing gasket, is reduced sealing effectiveness, is caused the sealing of housing hydroecium to close
Lattice rate only has 40% or so.If be processed again to bulkhead seal groove 6 ' after welding, one side difficulty of processing is big, processing cost
It is high；On the other hand, add man-hour requirement to prune the part that the bottom surface 8 ' of the trough body structure of bulkhead seal groove 6 ' is protruded, cause pipe
The thickness of plate 2 ' reduces, and reduces the bearing strength of tube sheet 2 ', influences the structural strength of pressure vessel, reduces reliability.
As shown in Figs. 4-6, the tube sheet 2 in the application includes relative first side 3 and second side 4, first side 3
Weld together with the housing 1 of tubular, being recessed in the second side 4 of tube sheet 2 forms bulkhead seal groove 6, also recessed in second side 4
Fall into and form annular seal groove 5, annular seal groove 5 is connected with bulkhead seal groove 6, radial direction or string of the bulkhead seal groove 6 along housing
To extension, preferably along radially extending.The second side 4 of tube sheet 2 coordinates with end cap (not shown) to be installed, with tube sheet 2
Sealing structure is formed between end cap.
In order to strengthen the sealing effectiveness between tube sheet 2 and end cap, offset what is be welded together to form by tube sheet 2 with housing 1
The deformation of tube sheet 2, predeformation structure is provided with the trough body structure for forming bulkhead seal groove 6.Specifically, predeformation structure bag
The predeformation bottom surface 7 set on the trough body structure for forming bulkhead seal groove 6 is included, according to the deformation feelings of tube sheet 2 in the prior art
Condition, predeformation bottom surface 7 is arranged to curved surface, preferably large radius arc-shaped curved surface, it is further preferred that it is with bulkhead seal that curved surface, which is,
The length that groove 6 extends along direction is the part in the circumference on the face of cylinder of chord length, the axis on the face of cylinder and the axis of housing 1
Vertically, the side of curved surface towards housing 1 is axially projecting, i.e., is protruded towards the first side 3 of tube sheet 2, specifically, bulkhead seal groove
6 depth capacity and the difference of minimum-depth are more than or equal to 0.5mm, preferably 0.5mm to 6mm.It is it is, of course, understood that pre-
Distressed structure is not limited to set on the bottom surface for forming bulkhead seal groove 6, is also not limited to bottom surface being arranged to curved surface,
It is any can offset because tube sheet 2 and housing 1 weld caused by the predeformation structure of deformation of tube sheet 2 be all contained in the application
In predeformation structure.
Different according to the deflection as caused by welding operation, the radius of curved surface is different, it is preferable that the radius and curved surface of curved surface
It is along the relation between the largest deformation amount of the axis direction of housing 1Wherein R is the half of the curved surface
Footpath, L are the length that the bulkhead seal groove extends along direction, and the H is maximum shape of the curved surface along housing axial direction
Variable., preferably to offset the deformation of the tube sheet 2 as caused by welding.Preferably, the center of circle of curved surface is located on the axis of housing 1
Or with the straight line of diameter parallel, to ensure that predeformation structure can preferably offset deformation caused by welding process, being provided with
After the tube sheet 2 of predeformation bottom surface 7 welds together with housing 1, the bottom surface for forming bulkhead seal groove 6 is plane, to ensure dividing plate
The dividing plate of seal groove 6 and end cap can form good sealing effectiveness.
Further, because the dividing plate (not shown) set on end cap and the end face of flange (not shown) are located at
On same plane, therefore, in order to obtain sealing effectiveness good between end cap and tube sheet 2, tube sheet 2 welds together with housing 1
Afterwards, the bottom surface 9 for forming trough body structure of the bottom surface 8 of annular seal groove 5 with forming bulkhead seal groove is generally aligned in the same plane, to ensure
Bulkhead seal groove 6 and annular seal pocket 7 can reach planarity requirements simultaneously.
Preferably, the predeformation structure in the application processes acquisition using machining modes such as such as Digit Control Machine Tools, with
Machining accuracy is improved, and then improves sealing effectiveness when tube sheet 2 coordinates with end cap.
Predeformation structure is provided with tube sheet in the application, predeformation structure makes the bottom surface of bulkhead seal groove 6 by facing directly
It is changed into producing the change of physical dimension towards the axially projecting large radius curved surface in housing side, the i.e. bottom surface of bulkhead seal groove, on
The welding deformation amount of tube sheet can be overcome by stating the change of physical dimension, be made on the bulkhead seal groove and end cap on the tube sheet after welding
Dividing plate between sealing effectiveness it is more preferable.
Present invention also provides a kind of shell-and-tube heat exchanger, the shell-and-tube heat exchanger has housing 1, is provided with housing 1
Heat exchanger tube (not shown), heat exchanger tube are fixedly installed within the case 1 by tube sheet 2, wherein, tube sheet is using pipe as described above
Plate 2.Solve in the prior art because of the trough body structure deformation for forming bulkhead seal groove 6, crushed element and the dividing plate top on end cap
Together, the problem of end cap is with 2 sealing effectiveness difference of tube sheet is caused.Tube sheet 2 can be improved using above-mentioned tube sheet 2 to weld with housing 1
The flatness of the bottom surface 9 of the trough body structure of bulkhead seal groove 6 is formed afterwards, and then improves the flat of sealing surface between tube sheet 2 and end cap
Face degree, sealability is improved, the sealing qualification rate of the housing hydroecium of shell-and-tube heat exchanger can be brought up to 100% by 40%.
Disclosed herein as well is a kind of air-conditioning, above-mentioned shell-and-tube heat exchanger is provided with the air-conditioning, effectively improving air-conditioning makes
With reliability, air-conditioning fault rate is reduced, lifts Consumer's Experience.
It should be noted that the predeformation structure set on tube sheet in the application is different from welding anti-distortion, the application
In predeformation structure be welding process progress before be just applied on tube sheet.Welding anti-distortion refers in welding process
In, in position application and the deformation direction opposite effect power that will be deformed, prevent welding stress from causing weldment
Deformation.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each preferred scheme can be free
Ground combination, superposition.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For, the present invention can have various changes and change.All any modifications made within spirit and principles of the present invention, it is equal
Replace, improve etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of tube sheet, the tube sheet includes opposite first side and second side, the first side of the tube sheet be used for
The case weld of tubular together, offers bulkhead seal groove in the second side of the tube sheet, it is characterised in that forming institute
State and predeformation structure is provided with the trough body structure of bulkhead seal groove, the predeformation structure is used to offset the institute as caused by welding
State the deformation of tube sheet.
2. tube sheet according to claim 1, it is characterised in that the bottom surface of the trough body structure is predeformation bottom surface, described
Predeformation bottom surface forms the predeformation structure, and the predeformation bottom surface is configured to, and the tube sheet is with the case weld one
After rising so that the bottom surface for forming the trough body structure of the bulkhead seal groove is plane.
3. tube sheet according to claim 2, it is characterised in that the predeformation bottom surface is curved surface, and the curved surface is towards institute
State housing side protrusion.
4. tube sheet according to claim 3, it is characterised in that the curved surface be the face of cylinder a part, the face of cylinder
Axis it is vertical with the axis of the housing.
5. tube sheet according to claim 4, it is characterised in that radial direction or tangential of the bulkhead seal groove along the housing
Extension.
6. tube sheet according to claim 5, it is characterised in that the curved surface is with the bulkhead seal groove side of extending along
To a part of the length as the face of cylinder of chord length；And/or
The radius of the curved surface and the curved surface are along the relation between the axial largest deformation amount of the housingWherein R is the radius of the curved surface, and L extends along the length in direction, institute for the bulkhead seal groove
It is largest deformation amount of the curved surface along housing axial direction to state H.
7. tube sheet according to claim 1, it is characterised in that be additionally provided with the second side of the tube sheet for
The annular seal groove of flange fitted seal on end cap；
After the tube sheet is together with the case weld, the bottom surface of the annular seal groove and the bottom surface of the bulkhead seal groove
It is generally aligned in the same plane.
8. according to the tube sheet described in any one of claim 1 to 7, it is characterised in that the depth capacity of the bulkhead seal groove with
The difference of minimum-depth is more than or equal to 0.5mm.
9. a kind of shell-and-tube heat exchanger, it is characterised in that set on the shell-and-tube heat exchanger any just like claim 1 to 8
Tube sheet described in.
10. a kind of air-conditioning, it is characterised in that shell-and-tube heat exchanger as claimed in claim 9 is provided with the air-conditioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711039868.2A CN107726913A (en) | 2017-10-31 | 2017-10-31 | Tube sheet, shell-and-tube heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711039868.2A CN107726913A (en) | 2017-10-31 | 2017-10-31 | Tube sheet, shell-and-tube heat exchanger and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107726913A true CN107726913A (en) | 2018-02-23 |
Family
ID=61203299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711039868.2A Pending CN107726913A (en) | 2017-10-31 | 2017-10-31 | Tube sheet, shell-and-tube heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107726913A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696947A (en) * | 2021-01-19 | 2021-04-23 | 格力电器（合肥）有限公司 | Tube plate for shell-and-tube heat exchanger and shell-and-tube heat exchanger |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262423A (en) * | 2000-01-21 | 2000-08-09 | 华南理工大学 | Prestressed shell-and-tube heat exchanger and its manufacture method |
| KR100968114B1 (en) * | 2009-09-16 | 2010-07-06 | (주)플루엔 | Multi plater heating exchanger |
| CN102350568A (en) * | 2011-09-26 | 2012-02-15 | 张家港化工机械股份有限公司 | Method for preventing tube sheets from deforming during overlaying process |
| CN203949545U (en) * | 2014-06-23 | 2014-11-19 | 中国石化工程建设有限公司 | A kind of shell-and-tube exchanger channel structure |
| CN204757795U (en) * | 2015-02-05 | 2015-11-11 | 格力电器（合肥）有限公司 | Sealing structure of shell-and-tube heat exchanger |
| CN207515607U (en) * | 2017-10-31 | 2018-06-19 | 珠海格力电器股份有限公司 | Tube sheet, shell-and-tube heat exchanger and air conditioner |
-
2017
- 2017-10-31 CN CN201711039868.2A patent/CN107726913A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262423A (en) * | 2000-01-21 | 2000-08-09 | 华南理工大学 | Prestressed shell-and-tube heat exchanger and its manufacture method |
| KR100968114B1 (en) * | 2009-09-16 | 2010-07-06 | (주)플루엔 | Multi plater heating exchanger |
| CN102350568A (en) * | 2011-09-26 | 2012-02-15 | 张家港化工机械股份有限公司 | Method for preventing tube sheets from deforming during overlaying process |
| CN203949545U (en) * | 2014-06-23 | 2014-11-19 | 中国石化工程建设有限公司 | A kind of shell-and-tube exchanger channel structure |
| CN204757795U (en) * | 2015-02-05 | 2015-11-11 | 格力电器（合肥）有限公司 | Sealing structure of shell-and-tube heat exchanger |
| CN207515607U (en) * | 2017-10-31 | 2018-06-19 | 珠海格力电器股份有限公司 | Tube sheet, shell-and-tube heat exchanger and air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696947A (en) * | 2021-01-19 | 2021-04-23 | 格力电器（合肥）有限公司 | Tube plate for shell-and-tube heat exchanger and shell-and-tube heat exchanger |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180223 |
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| RJ01 | Rejection of invention patent application after publication |