CN205642116U - Fluoroplastics pipe heat exchanger tube and tube plate's connection, seal structure - Google Patents
Fluoroplastics pipe heat exchanger tube and tube plate's connection, seal structure Download PDFInfo
- Publication number
- CN205642116U CN205642116U CN201620096212.9U CN201620096212U CN205642116U CN 205642116 U CN205642116 U CN 205642116U CN 201620096212 U CN201620096212 U CN 201620096212U CN 205642116 U CN205642116 U CN 205642116U
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- Prior art keywords
- tube
- fluorine plastic
- heat exchanger
- tube sheet
- plastic tube
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Abstract
The utility model provides a fluoroplastics heat exchanger tube and tube plate's connection, seal structure, belongs to energy -conservation, environmental protection and heat exchange field. At present, existing fluoroplastics pipe heat exchanger's current manufacturing technology has certain limitation, and most of heat exchanger troubles are because fluoroplastics pipe heat exchanger tube and tube plate's connection takes place not hard up, fracture with sealed department, and the dielectric leakage phenomenon that causes. The utility model discloses a fluoroplastics heat exchanger fluoroplastics tube and tube plate's connection, seal structure, including tube sheet, fluoroplastics pipe, O shape sealing washer and cylindrical tube expander. Through the annular seal groove of concave type that sets up in the tube sheet through -hole and anti -skidding groove, sealing washer, the outside annular non -skid band of protruding type that sets up of fluoroplastics pipe end mouth to and the interact of cylindrical tube expander, realized finally that tube and tube plate's firm connection is sealed with reliably, solved fluoroplastics heat exchanger and leaded to fluoroplastics heat exchanger tube and tube plate's connection, the problem of a sealed dielectric leakage because of vibration, extrusion, fatigue and ambient temperature cataclysm etc. In long -term the use.
Description
One, technical field
This utility model belongs to energy-saving and environmental protection and field of heat exchange, particularly to fluorine plastic tube heat exchanger tube and the connection of tube sheet, seals structure.
Two, background technology
For solving flue gas heat-exchange unit etching problem under cryogenic, China market occurred fluorine plastic tube heat exchanger from 2000.It is the thing just occurred for nearly 3 or four years that fluorine plastic tube heat exchanger is used in the environment such as large thermal power plant smoke gas treatment, waste heat recovery.At present, the existing manufacturing technology of fluorine plastic tube heat exchanger has certain limitation, and great majority are owing to loosening, cracking occurring at fluorine plastic tube heat exchanger tube and the connection of tube sheet and sealing, causing dielectric leakage phenomenon.
One of prior art that representative fluorine plastic tube heat exchanger tube is tightly connected with tube sheet is: " the sealing expanded joint method of fluorine plastic tube exchanger tubes and tubesheets ".It is characterized in that: be provided with one group of annular seal groove and several annular expanded joint tension grooves at the tube sheet through-hole wall being connected with fluorine plastic tube heat exchanger tube；Heat exchanger tube diameter is slightly less than tube sheet through-hole diameter and inserts in through hole, then is pressed into by tube expander in fluoroplastics heat exchanger tube, and the pressure utilizing tube expander outwards to dilate reaches the purpose that exchanger tubes and tubesheets connects and seals.Its shortcoming is: do not possess necessary to sealing member elastic due to fluorine plastic tube, after long-time use, deforms because reasons such as extruding, vibrate, be tired causes, occur at exchanger tubes and tubesheets connection, sealing loosening, and cause dielectric leakage at fluorine plastic tube stress.
The two of the prior art that known fluorine plastic tube heat exchanger tube is tightly connected with tube sheet are: employing politef realizes tube sheet and the connection of heat exchanger tube and sealing as heat exchanger tube sheet, recycling " fluoroplastics heat exchanger F-4 tube sheet limits swollen pressure heating welding ".Its shortcoming is: (one) equipment local environment temperature be below the freezing point equipment midway disable time, it is possible that in fluorine plastic tube medium freeze.Expansion and contraction that icing produces can cause fluoroplastics tube to tube sheet welding position to ftracture, and cause system leak；(2) being limited by strength of materials feature, politef is not suitable for manufacturing Large-scale High-Pressure heat exchanger tube sheet；(3) being limited by material characteristics and existing manufacturing technology, " fluorine plastic tube heat exchanger F-4 tube sheet limit is swollen, and pressure heats welding " is not suitable for manufacturing rectangle tube sheet；(4) this complex process, production efficiency is low, and manufacturing cost is high.
Three, utility model content
A kind of reliable and stable fluorine plastic tube heat exchanger tube and the sealing of tube sheet, attachment structure are proposed.Fluorine plastic tube heat exchanger tube is made to be improved with connectivity robustness and the tightness of tube sheet, it is ensured that the operation safety of fluorine plastic tube heat exchanger.Technical scheme is as follows:
Each through-hole wall being connected with fluorine plastic tube of tube sheet is provided with the ring-type anti-slip tank of spill and the ring-type seal groove of spill；nullThe position that fluorine plastic tube port outer wall is connected with tube sheet is provided with the non-skid band that convex is ring-type，During assembling, O-ring seals is inserted in the ring-type anti-slip tank of spill of tube sheet through-hole wall，Fluorine plastic tube is penetrated in the through hole of tube sheet from the side of tube sheet，The ring-type non-skid band of the convex anti-slip tank ring-type with the spill on tube sheet through-hole wall making Buddhist plastic tube aligns，By cylindrical tube expander from the port of tube sheet opposite side press-in fluorine plastic tube，Fluorine plastic tube is expanded outwardly by cylindrical tube expander and transmits pressure，Make the ring-type non-skid band of convex of fluorine plastic tube port be formed with the ring-type anti-slip tank of spill within tube sheet through hole to coordinate closely，Make fluorine plastic tube be formed with tube sheet to be firmly connected，Simultaneously，The fluorine plastic tube extruding to O-ring seals，O-ring seals is made to be deformed，Fill up the space between fluorine plastic tube and tube sheet densely，Make between fluorine plastic tube and tube sheet, to form tight sealing.
Significantly improve the sealing property that fluorine plastic tube heat exchanger tube is connected with tube sheet, surface pressing at fluorine plastic tube and the connection of tube sheet, sealing will be caused to decline due to factors such as long-time vibrations, extruding, fatigue and the ambient temperature cataclysms using and occurring, medium is revealed；Significantly improve the connection tensile strength of fluorine plastic tube and tube sheet；Breach the restriction of existing manufacturing technology, make high pressure, efficient manufacturing and designing of fluorine plastic tube heat exchanger become possibility；It is greatly prolonged heat exchanger failure-free operation cycle and service life, loss that user because of heat exchanger fails stopping production cause is reduced or eliminated, improve equipment service efficiency, more economical, efficient.
Four, accompanying drawing explanation
Fig. 1 is this utility model front view
Fig. 2 be in Fig. 1 A to sectional view
Fig. 3 is tube plate structure sectional view
Fig. 4 is fluorine plastic tube structural representation
Fig. 5 is O RunddichtringO structural representation
Fig. 6 is that O RunddichtringO puts into metal tube sheets structural representation
Fig. 7 is the schematic diagram that fluorine plastic tube inserts metal tube sheets through hole
Fig. 8 is the structural representation of tube expander
Fig. 9 is the schematic diagram that tube expander inserts in fluorine plastic tube
In figure: 1 is tube sheet；2 is tube sheet through hole；3 is female seat ring recess；4 is spill anti-slip tank；5 is fluorine plastic tube；6 is convex non-skid band；7 is O RunddichtringO；8 is tube expander.
Five, detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described further:
Tube sheet (1) is provided with some tube sheet through holes (2)；Inwall at tube sheet through hole (2) is provided with female seat ring recess (3) and spill anti-slip tank (4)；Two ends mouth of pipe outer wall at fluorine plastic tube (5) is provided with convex non-skid band (6), and makes the position of convex non-skid band (6), shape, size, the position of quantity and spill anti-slip tank (4), shape, size, quantity one_to_one corresponding coordinate；O RunddichtringO (7) is put in female seat ring recess (3)；Fluorine plastic tube (5) is inserted in tube sheet through hole (2), making convex non-skid band (6) be positioned at the position corresponding with spill anti-slip tank (4), at this moment O RunddichtringO (7) is still in female seat ring recess (3) and be enclosed within the outer wall of fluorine plastic tube (5)；By in the port of tube expander (3) press-in fluorine plastic tube (2).Owing to design makes the external diameter internal diameter slightly larger than fluorine plastic tube (2) of tube expander (3), after tube expander (3) is pressed into fluorine plastic tube (2), fluorine plastic tube (2) occurs interior swollen and extends out；Again because tube sheet through hole (2) is to fluorine plastic tube (5) and the limited swollen effect of O RunddichtringO (7), O RunddichtringO (7) and convex non-skid band (6) are compressed in female seat ring recess (3) and spill anti-slip tank (4) respectively, define the connection of firm stable between fluorine plastic tube and tube sheet and seal structural relation.
Claims (8)
- null1. a fluorine plastic tube heat exchanger tube and the connection of tube sheet、Seal structure，Mainly include tube sheet、Fluorine plastic tube、O-ring seals and cylindrical tube expander,It is characterized in that: on each through-hole wall of tube sheet, be provided with the ring-type anti-slip tank of spill and the ring-type seal groove of spill，The position that fluorine plastic tube port outer wall is connected with tube sheet is provided with the non-skid band that convex is ring-type，The ring-type anti-slip tank of spill at tube sheet through-hole wall is built with O-ring seals，After fluorine plastic tube penetrates in the through hole of tube sheet，The ring-type non-skid band of the convex anti-slip tank ring-type with the spill on tube sheet through-hole wall of Buddhist plastic tube aligns，Cylindrical tube expander is from the port of tube sheet opposite side press-in fluorine plastic tube，Fluorine plastic tube is made to be expanded outwardly by cylindrical tube expander and transmit pressure，Make the ring-type non-skid band of convex of fluorine plastic tube port be formed with the ring-type anti-slip tank of spill within tube sheet through hole to coordinate closely，Form fluorine plastic tube to be connected with the firm of tube sheet，The fluorine plastic tube extruding to O-ring seals，O-ring seals is made to be deformed，Fill up the space between fluorine plastic tube and tube sheet densely，Make between fluorine plastic tube and tube sheet, to form tight sealing.
- A kind of fluorine plastic tube heat exchanger tube the most according to claim 1 and the connection of tube sheet, sealing structure, it is characterised in that: being provided with several through holes on tube sheet, through-hole wall is provided with the ring-type anti-slip tank of spill and spill annular seal ring recess.
- A kind of fluorine plastic tube heat exchanger tube the most according to claim 1 and the connection of tube sheet, sealing structure, it is characterised in that: it is provided with the ring-type non-skid band of convex, and the position one_to_one corresponding of draw-in groove ring-type with tube sheet spill at fluorine plastic tube port outer wall.
- A kind of fluorine plastic tube heat exchanger tube the most according to claim 1 and the connection of tube sheet, sealing structure, it is characterized in that: the position of the ring-type non-skid band of fluorine plastic tube convex, shape, size, the position of spill draw-in groove of quantity and heat exchanger tube sheet through-hole wall, shape, size, quantity one_to_one corresponding coordinate, it is achieved fluorine plastic tube locks, with tube sheet, the purpose being connected.
- A kind of fluorine plastic tube heat exchanger tube the most according to claim 1 and the connection of tube sheet, sealing structure, it is characterized in that: in using O-ring seals and being placed on the spill annular seal ring recess of tube sheet through-hole wall, when fluorine plastic tube is inserted into tube sheet through hole, O-ring seals is also enclosed within fluorine plastic tube outer wall, define the sealing matching relationship between O-ring seals and tube sheet female seat ring recess and fluorine plastic tube, it is achieved fluorine plastic tube and the purpose of tube sheet high pressure sealing.
- A kind of fluorine plastic tube heat exchanger tube the most according to claim 1 and the connection of tube sheet, sealing structure, it is characterized in that: be provided with cylindrical tube expander and fluorine plastic tube minor diameter fit, and be pressed in the fluorine plastic tube mouth of pipe after fluorine plastic tube inserts tube sheet through hole and O-ring seals, utilize the swollen function of limit of its outside expansionary force and tube sheet through-hole wall, form concavo-convex locking and connect and tight sealing.
- The connection of a kind of fluorine plastic tube heat exchanger tube the most according to claim 1 and tube sheet, seal structure, it is characterised in that: the heat exchanger tube material of indication fluoroplastics heat exchanger is politef and other are material modified.
- A kind of fluorine plastic tube heat exchanger tube the most according to claim 1 and the connection of tube sheet, sealing structure, it is characterised in that: the tube sheet material of indication fluorine plastic tube heat exchanger can be metal material, it is also possible to be the nonmetallic materials including politef.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620096212.9U CN205642116U (en) | 2016-01-29 | 2016-01-29 | Fluoroplastics pipe heat exchanger tube and tube plate's connection, seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620096212.9U CN205642116U (en) | 2016-01-29 | 2016-01-29 | Fluoroplastics pipe heat exchanger tube and tube plate's connection, seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205642116U true CN205642116U (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620096212.9U Expired - Fee Related CN205642116U (en) | 2016-01-29 | 2016-01-29 | Fluoroplastics pipe heat exchanger tube and tube plate's connection, seal structure |
Country Status (1)
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| CN (1) | CN205642116U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403697A (en) * | 2016-11-16 | 2017-02-15 | 北京淘氪科技有限公司 | Heat exchanger and connecting method thereof |
| CN107062980A (en) * | 2016-12-30 | 2017-08-18 | 湖州鼎诚环保科技有限公司 | A kind of heat exchange tube seal structure of liquid-gas type heat exchanger |
| CN107702085A (en) * | 2017-11-03 | 2018-02-16 | 青岛达能环保设备股份有限公司 | Low-level (stack-gas) economizer tube sheet system |
| CN108601293A (en) * | 2018-04-17 | 2018-09-28 | 南昌黑鲨科技有限公司 | A kind of manufacturing method of radiating component and radiating component |
| CN110450424A (en) * | 2019-08-28 | 2019-11-15 | 河北远征环保科技有限公司 | Plastics tube sheet connects the method and gas-gas heat exchanger of sealing tool, tube sheet connection |
| CN111692901A (en) * | 2019-03-14 | 2020-09-22 | 开利公司 | Heat exchanger and associated tube sheet |
-
2016
- 2016-01-29 CN CN201620096212.9U patent/CN205642116U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403697A (en) * | 2016-11-16 | 2017-02-15 | 北京淘氪科技有限公司 | Heat exchanger and connecting method thereof |
| CN107062980A (en) * | 2016-12-30 | 2017-08-18 | 湖州鼎诚环保科技有限公司 | A kind of heat exchange tube seal structure of liquid-gas type heat exchanger |
| CN107702085A (en) * | 2017-11-03 | 2018-02-16 | 青岛达能环保设备股份有限公司 | Low-level (stack-gas) economizer tube sheet system |
| CN107702085B (en) * | 2017-11-03 | 2023-01-06 | 青岛达能环保设备股份有限公司 | Low-temperature economizer tube plate system |
| CN108601293A (en) * | 2018-04-17 | 2018-09-28 | 南昌黑鲨科技有限公司 | A kind of manufacturing method of radiating component and radiating component |
| CN108601293B (en) * | 2018-04-17 | 2020-09-15 | 南昌黑鲨科技有限公司 | Heat radiation component and manufacturing method thereof |
| CN111692901A (en) * | 2019-03-14 | 2020-09-22 | 开利公司 | Heat exchanger and associated tube sheet |
| CN110450424A (en) * | 2019-08-28 | 2019-11-15 | 河北远征环保科技有限公司 | Plastics tube sheet connects the method and gas-gas heat exchanger of sealing tool, tube sheet connection |
| CN110450424B (en) * | 2019-08-28 | 2024-02-23 | 河北远征环保科技有限公司 | Tool for connecting and sealing plastic tube plates, tube plate connecting method and gas-gas heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20210129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |