CN208139919U - A kind of connection structure of novel heat exchange pipe and tube sheet - Google Patents
A kind of connection structure of novel heat exchange pipe and tube sheet Download PDFInfo
- Publication number
- CN208139919U CN208139919U CN201820451353.7U CN201820451353U CN208139919U CN 208139919 U CN208139919 U CN 208139919U CN 201820451353 U CN201820451353 U CN 201820451353U CN 208139919 U CN208139919 U CN 208139919U
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- tube sheet
- thread plug
- hole
- thread
- heat exchange
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- 238000007789 sealing Methods 0.000 claims abstract description 35
- 239000011148 porous material Substances 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 4
- 238000005304 joining Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the connection structures of a kind of novel heat exchange pipe and tube sheet.Including tube sheet, hole is machined on the tube sheet, tubesheet holes of the hole by being located at the thread plug hole in outside and positioned inside forms, the thread plug bore dia is greater than tube sheet bore dia, the connection structure further includes thread plug, the thread plug is placed in the thread plug hole of tube sheet, thread plug and tube sheet are connected through a screw thread, star sealing ring is equipped between the sealing surface and tube sheet of the thread plug inner end, heat exchange pore identical with tube sheet bore dia is equipped with inside the thread plug, heat exchanger tube is inserted into tubesheet holes and heat exchange pore, tube end and thread plug inner contacts are equipped with star sealing ring.Thread plug, star-like ring structure in the utility model is simple, and dismounting and change is convenient, and maintenance cost is low, and plant maintenance, cleaning are compared to welding and the time saving convenience of expansion-joint structure.
Description
Technical field
The utility model relates to a kind of heat exchange equipment technology, specifically a kind of novel heat exchange pipe and tube sheet
Connection structure.
Background technique
Pipe heat exchanger is the equipment that the industries such as petrochemical industry and heat supply are particularly significant and generally use, in actual production
It can be used as heater, condenser, evaporator and reboiler etc. in journey.Heat exchanger main heat transfer structure be by hundreds of even on
The connection of the tube bank of thousand heat exchanger tubes and tube sheet composition, exchanger tubes and tubesheets becomes essential operative employee in heat exchanger
Highly important structure in sequence and heat exchanger, the bonding strength of exchanger tubes and tubesheets directly influence technological operation
It is normally carried out, therefore the emphasis that the connection of exchanger tubes and tubesheets is become manufacturer and paid close attention to jointly using unit.GB/T151-
2014《Heat exchanger》In, the common connection type of exchanger tubes and tubesheets has expanded joint, welding, expanded and welded tube joint and with three kinds of forms.Three kinds
Connection type respectively has advantage and disadvantage, but common disadvantage is, in industrial processes, fouling of heat exchangers is one very universal
Phenomenon, after heat transfer component fouling, the heat transfer property of heat exchanger declines, and influences normal production efficiency, fouling of heat exchangers（Or heat exchanger tube
Damage）After be not easy to extract disassembly, cleaning, endless tube head need to be broken when replacing heat exchanger tube, taken time and effort, maintenance of equipment cleaning is difficult；To even
Connect place intensity and welding or expanded joint quality requirement it is higher, be easy to when equipment encounters the biggish operating condition of vibration in heat exchanger tube and pipe
The junction of plate occurs vibration failur and causes equipment leakage.
It needs now a kind of suitable for because heat exchanger tube and tube sheet material reason can not be taken and weld or be not easy to take expanded joint side
The new structure of formula connection, when which can be such that heat exchanger tube and tube sheet flexibly dismounts, cleaning replacement facilitates, vibrates larger
It will not make the heat exchanger tube of equipment leakage and the connection structure of tube sheet because of weld cracking etc..
Summary of the invention
The purpose of this utility model is to provide for the connection structure of a kind of novel heat exchange pipe and tube sheet, which makes to change
It will not be because weld cracking etc. makes equipment leakage when heat pipe and tube sheet flexibly dismount, cleaning replacement facilitates, vibrates larger.
The technical solution of the utility model is：
The new Joining Structure of exchanger tubes and tubesheets, including tube sheet, hole is machined on the tube sheet, and the hole is outer by being located at
The thread plug hole of side and positioned inside tubesheet holes form, the thread plug bore dia be greater than tube sheet bore dia, the company
Binding structure further includes thread plug, and the thread plug is placed in the thread plug hole of tube sheet, and thread plug and tube sheet pass through
It is threadedly coupled, star sealing ring is equipped between the sealing surface and tube sheet of the thread plug inner end, inside the thread plug
Equipped with heat exchange pore identical with tube sheet bore dia, heat exchanger tube is inserted into tubesheet holes and heat exchange pore, tube end and screw thread
Silk plug inner contacts are equipped with star sealing ring.
The utility model has the beneficial effects that：
1, the thread plug in the utility model, star-like ring structure are simple, and dismounting and change is convenient, and maintenance cost is low,
Plant maintenance, cleaning are compared to welding and the time saving convenience of expansion-joint structure.
2, the connection structure of the utility model passes through tube sheet screw thread, thread plug, the star-like sealing ring of two kinds of specifications, heat exchanger tube
The thread seal mode of component come realize exchange heat pipe it is flexible dismounting, periodic maintenance cleaning and replace, not only economize on resources, and
And reduce maintenance cost.In equipment cleaning, the thread plug at heat exchanger tube both ends is backed out（Can bilateral extraction, space for maintenance spirit
It is living）, heat exchanger tube can be extracted out（When heat exchanger tube damage needs replacing, method is consistent）, chemical immersion cleaning both can be used can also
Using physical cleaning method.
3, the utility model sealing structure is the flexible sealing structure that screw thread adds seal rubber, is vibrated when operating condition
When, it can effectively avoid the leakage of exchanger tubes and tubesheets junction.
4, the utility model is because adding star-like ring structure using screw thread, and exchanger tubes and tubesheets are without gun iron link, therefore
The feelings of heat exchanger tube damage are easily caused because cannot achieve welding and expanded joint caused by material difference for exchanger tubes and tubesheets material
Condition provides new sealing structure.
5, for the utility model because using star-like rubber sealing ring as sealing element, the material of rubber can be according to different medium
Corrosive nature and operating pressure, operating temperature flexibly selects, and pressure-bearing is high, and applicable working condition range is wide.
6, the utility model is because using star-like rubber sealing ring as sealing element, and hub-and-spoke configuration is compared to O-ring seal
Structure precommpression is smaller, reduces frictional force, wears small, longer life expectancy, due to its special section design, improves on section
Pressure distribution, can obtain good sealing effect, there are two sealing lips for hub-and-spoke configuration sealing ring, enhance sealing performance,
Different from O-ring seal, the mold parting surface of star-like sealing ring is in the recess in section, and the position far from sealing lip.
Detailed description of the invention
Fig. 1 is the sectional arrangement drawing of the utility model sealing structure.
Fig. 2 is the partial enlarged view of the sealing structure in sectional arrangement drawing at I.
Fig. 3 is the utility model tube plate structure cross-sectional view.
Fig. 4 is the cross-sectional view of the utility model thread plug.
Fig. 5 is the shaft side figure of the utility model thread plug.
Fig. 6 is the half-sectional shaft side figure of the utility model thread plug.
Fig. 7 is the cross-sectional view of the star-like sealing ring of the utility model.
Specific embodiment
In order to solve drawbacks described above, applicants have invented the new Joining Structures of herein described heat exchanger tube and tube sheet.
The application is described in detail with reference to the accompanying drawing,
The new Joining Structure of exchanger tubes and tubesheets, including tube sheet 1 are machined with hole on the tube sheet 1, and the hole is by being located at
The thread plug hole 6 in outside and positioned inside tubesheet holes 7 form, 6 diameter of thread plug hole be greater than 7 diameter of tubesheet holes.
Internal screw thread 8 is machined on thread plug hole 6, the connection structure further includes thread plug 3, and thread plug 3 is machined with external screw thread
9, the thread plug 3 is placed in the thread plug hole 6 of tube sheet 1, and thread plug 3 and tube sheet 1 are connected through a screw thread, the spiral shell
Star sealing ring A is housed between the sealing surface 10 and tube sheet 1 of 3 medial end of line silk plug.It is through-hole among the thread plug 3
Structure, the through-hole of 3 centre of thread plug is by being located at the connecting hole 11 of outer end and the heat exchange pore 12 of inner end, the heat exchange pore 12
Diameter is identical as 7 diameter of tubesheet holes of tube sheet, and heat exchanger tube 2 is inserted into tubesheet holes 7 and heat exchange pore 12,2 end of heat exchanger tube and spiral shell
3 inner contacts of line silk plug are equipped with star sealing ring B.3 outer end of thread plug is machined with two pairs of symmetrical square grooves 13,
Thread plug can be tightened and be removed by specific purpose tool.
The application connection structure is suitble to the equipment that connect with heat exchanger tube of related to tube sheet, such as pipe heat exchanger, air-cooled
Device, air heater etc..
Installation process：
Heat exchanger tube 2 is penetrated into heat exchange pore 12 after heat exchanger tube sheet 1 fixes and in tubesheet holes 7, both ends are pacified simultaneously
Star-like sealing ring A4, star-like sealing ring B5 are filled, and thread plug 3 is screwed into pore with specific purpose tool simultaneously, guarantees both ends speed
Essentially identical with tightness, star-like sealing ring A 4 is extruded in sealing surface, the pipe of thread plug by the sealing surface of thread plug 3
Between plate and heat exchanger tube, a band is formed.Star-like sealing ring B 5 is extruded in heat exchanger tube 2 and screw thread by the end of heat exchanger tube 2
The inside of silk plug, forms another band, and two above band is completed at the same time the medium of 1 two sides of sealed pipe plate.
Claims (2)
1. the connection structure of a kind of novel heat exchange pipe and tube sheet, including tube sheet, it is characterised in that：It further include thread plug, it is described
Hole is machined on tube sheet, tubesheet holes of the hole by being located at the thread plug hole of outer end and positioned at inner end forms, the screw thread silk
Plug-hole diameter is greater than tube sheet bore dia, is machined with internal screw thread on the thread plug hole, the thread plug is placed on tube sheet
In thread plug hole, thread plug and tube sheet are connected through a screw thread, the sealing surface of the thread plug medial end and tube sheet it
Between star sealing ring is housed, be through-hole structure among the thread plug, the through-hole among thread plug is by being located at the company of outer end
The heat exchange pore of hole and inner end is connect, the heat exchange pore diameter is identical as the tube sheet bore dia of tube sheet, and heat exchanger tube is inserted into tubesheet holes
In heat exchange pore, tube end and thread plug inner contacts are equipped with star sealing ring.
2. the connection structure of a kind of novel heat exchange pipe and tube sheet according to claim 1, the thread plug outer end adds
Work has two pairs of symmetrical square grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820451353.7U CN208139919U (en) | 2018-04-02 | 2018-04-02 | A kind of connection structure of novel heat exchange pipe and tube sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820451353.7U CN208139919U (en) | 2018-04-02 | 2018-04-02 | A kind of connection structure of novel heat exchange pipe and tube sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208139919U true CN208139919U (en) | 2018-11-23 |
Family
ID=64290691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820451353.7U Active CN208139919U (en) | 2018-04-02 | 2018-04-02 | A kind of connection structure of novel heat exchange pipe and tube sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208139919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396770A (en) * | 2018-12-20 | 2019-03-01 | 东方电气集团东方锅炉股份有限公司 | A kind of replacing options and special right angle boring cutter of expanded joint bulge U-shaped heat exchanger tube |
-
2018
- 2018-04-02 CN CN201820451353.7U patent/CN208139919U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396770A (en) * | 2018-12-20 | 2019-03-01 | 东方电气集团东方锅炉股份有限公司 | A kind of replacing options and special right angle boring cutter of expanded joint bulge U-shaped heat exchanger tube |
| CN109396770B (en) * | 2018-12-20 | 2023-10-20 | 东方电气集团东方锅炉股份有限公司 | Replacement method of expansion-connection bulge U-shaped heat exchange tube and special right-angle boring cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201130 Address after: 136000 Siping City of Jilin province Tiexi District South Road No. 5 Patentee after: Jilin Tongda Heat Transfer Engineering Technology Co.,Ltd. Address before: 136000 Siping City of Jilin province Tiexi District South Road No. 5 Patentee before: Siping Juyuan Hanyang Plate Heat Exchanger Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231206 Address after: 136000 101, 1st floor, No.5, South Ring West Road, Zhanqian street, Tiexi District, Siping City, Jilin Province Patentee after: Siping Juyuan welding plate heat exchanger Co.,Ltd. Address before: 136000 Siping City of Jilin province Tiexi District South Road No. 5 Patentee before: Jilin Tongda Heat Transfer Engineering Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |