CN106197126B - A kind of top plate of tubular type gas-gas heat exchanger - Google Patents
A kind of top plate of tubular type gas-gas heat exchanger Download PDFInfo
- Publication number
- CN106197126B CN106197126B CN201610775723.8A CN201610775723A CN106197126B CN 106197126 B CN106197126 B CN 106197126B CN 201610775723 A CN201610775723 A CN 201610775723A CN 106197126 B CN106197126 B CN 106197126B
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- Prior art keywords
- plate
- heat exchanger
- gas
- tubular type
- exchanger tube
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Classifications
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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
- 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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0229—Double end plates; Single end plates with hollow spaces
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a kind of top plates of tubular type gas-gas heat exchanger, belong to gas-gas heat exchange technical field.A kind of top plate of tubular type gas-gas heat exchanger, the double-layer structure constituted including upper head plate and bottom plate, and the perforation double-layer structure and several through-holes for passing through heat exchanger tube, ventilation casing is provided on the through-hole, at least one casing stomata of ventilating is offered on the ventilation casing；The double-layer structure surrounding is provided with sealing plate, and the sealing plate offers sealing plate stomata between the upper head plate and the bottom plate on the sealing plate；It is equipped with upper plate on the upper head plate, upper connecting hole compatible with the lead to the hole site is offered on the upper plate, the internal diameter of the upper connecting hole is 0.1-1 millimeters bigger than the outer diameter of the heat exchanger tube.The strength of roof and rigidity are greater than the steel plate of 60mm thickness, while weight only has the one third of 60mm steel plate, considerably reduces the weight of overall heat exchange device, also reduces the installation of heat exchanger and the project amount of civil engineering.
Description
Technical field
The present invention relates to gas-gas heat exchange technical fields, and in particular to a kind of top plate of tubular type gas-gas heat exchanger.
Background technique
Tubular type gas-gas heat exchanger (GGH) is a kind of cooled using high temperature fluid, the heat exchange equipment that cryogen is heated,
Usual high temperature fluid is the gas (being properly termed as former flue gas) containing pollutant, and cryogen is the gas after purified treatment
(being properly termed as neat stress)；Tubular type GGH mainly (is changed by top plate and bottom plate, intermediate bulkhead, side wall and hundreds and thousands of heat-pipe elements
Heat pipe bundle) composition, for tubular type GGH using being arranged vertically, feature is vertical (vertical, along the gravity direction) arrangement of heat exchanger tube, heat exchanger tube
Interior fluid is to flow from bottom to top or from top to bottom.The space of top plate and bottom plate and heat exchange pipe outer wall composition is shell side；In heat exchanger tube
The space of composition is tube side.According to the needs of heat exchange, one of gas walks shell side, another gas walks tube side.Heat exchanger
Top plate bear the weight of all heat exchanger tubes, and change top plate and play the role of completely cutting off former flue gas and neat stress, former flue gas and
The neat stress temperature difference is big, and top plate bears the influence of uneven warm varying stress, so there is technology using 30-60mm(majority using 60mm
Steel plate) steel plate to bear above-mentioned stress, the waste of material and weight for greatly having aggravated heat exchanger body makes heat exchanger
Subsidiary installation and civilwork engineering quantity increase.Top plate needs reliable Corrosion prevention scheme simultaneously.
Authorization Notice No. is that the Chinese utility model patent of 202853459 U of CN discloses a kind of tubular type gas-gas heat exchanger
Top plate, with the mode of the upper and lower surface of carbon steel sheet cladding polyfluortetraethylene plate to realize anti-corrosion, but answered to resist temperature
The thickness of power, carbon steel sheet is thicker, and waste of material is more serious, and polyfluortetraethylene plate and heat exchange are coated below carbon steel sheet
Exist always between pipe and have the gap, gas can corrode carbon steel sheet by slot leakage.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems, to provide a kind of top plate of tubular type gas-gas heat exchanger.
Technical proposal that the invention solves the above-mentioned problems is as follows:
A kind of top plate of tubular type gas-gas heat exchanger, including the double-layer structure that upper head plate and bottom plate are constituted, and perforation institute
Several through-holes stated double-layer structure and pass through heat exchanger tube, are provided with ventilation casing on the through-hole, on the ventilation casing
Offer at least one ventilation casing stomata；The double-layer structure surrounding is provided with sealing plate, and the sealing plate is located on described
Between end plate and the bottom plate, sealing plate stomata is offered on the sealing plate；Upper plate is equipped on the upper head plate, it is described
Upper connecting hole compatible with the lead to the hole site is offered on upper plate, the internal diameter of the upper connecting hole is outer than the heat exchanger tube
Diameter is 0.1-1 millimeters big.
Typically, upper head plate steel plate thickness 6mm, lower end plate thickness 8-10mm, ventilation casing height are not less than 80mm.It is logical
Air-casing tube hub spacing 60-200mm, multiple ventilation casings play the role of structural column in structure, greatly strengthen
The strength and stiffness of bottom plate.Upper head plate, bottom plate and ventilation casing weld the structure to be formed, and it is thick that strength and stiffness are greater than 60mm
Steel plate, while weight only has the one third of 60mm steel plate, considerably reduces the weight of overall heat exchange device, also reduces and change
The installation of hot device and the project amount of civil engineering.
Application scheme sealing plate, upper and lower end plate and ventilation casing form a chamber, are sent into from the air hole of sealing plate
Relatively high pressure (pressure be higher than Tube Sheet of Heat Exchanger inside and outside maximum pressure 500Pa or more) clean non-corrosive gas (usually plus
The air of heat, is also possible to purified gas), which enters the cavity that sealing plate, upper and lower end plate and ventilation casing are formed,
Entered in the gap that ventilation casing and heat exchanger tube are formed by the stomata for casing of ventilating, forms air curtain and avoid corrosive gas logical
The metal for crossing crevice corrosion end plate is played and is fully sealed and etch-proof effect.Typically air curtain gas enter sealing plate, on
80 DEG C are heated to before the chamber that bottom plate and ventilation casing are formed, can not also be heated, for concrete condition.
If heat exchange tube material is PTFE, the top surface of the top plate upper head plate is laid with PTFE upper plate, plate thickness 1-6mm, PTFE
Upper plate is that rectangle is consistent with upper end plate top surface size, is equally provided with bolt hole, bolt hole position size is consistent with upper head plate.
As a preferred embodiment of the above technical solution, the outer diameter of the heat exchanger tube after the internal diameter specific thermic dilatation of the ventilation casing is big
0.2-2 millimeters.
As a preferred embodiment of the above technical solution, the face of the sum of area of the sealing plate stomata and the ventilation casing stomata
The sum of product difference is less than 1 square decimeter.
As a preferred embodiment of the above technical solution, the contact site of the sealing plate and the upper head plate, the bottom plate is logical
Welding is crossed mutually to seal.
As a preferred embodiment of the above technical solution, the ventilation casing passes through welding phase with the upper head plate, the bottom plate
Sealing.
As a preferred embodiment of the above technical solution, the upper surface of the ventilation casing is concordant with the upper surface of the upper head plate,
The lower end surface of the ventilation casing is concordant with the lower end surface of the bottom plate.
As a preferred embodiment of the above technical solution, the upper plate is stretched out in the upper end of the heat exchanger tube, and the length of stretching is equal to institute
The thickness of upper plate is stated, the heat exchanger tube, which stretches out between the part of the upper plate and the upper plate, is welded with right angle welding seam.
Heat exchanger tube passes through ventilation casing and is higher than PTFE upper plate, and the height being higher by is exactly equal to the wall thickness of PTFE upper plate, is formed
Heat exchanger tube and the PTFE flat-face fillet weld formed are expired using PFA welding rod in equilateral right angle, and heat exchanger tube is hung on PTFE plate, is formed simultaneously
Sealing, has completely cut off top plate tube side flue gas and shell side flue gas, avoids the corrosion of upper head plate.
As a preferred embodiment of the above technical solution, lower plate is equipped under the bottom plate, offered in the lower plate with it is described
The internal diameter of the compatible lower connecting hole of lead to the hole site, the lower connecting hole is 0.1-0.3 millimeters bigger than the outer diameter of the heat exchanger tube.
As a preferred embodiment of the above technical solution, the lower plate is mutually be bonded with the bottom plate or passes through fixing piece Joint.
As a preferred embodiment of the above technical solution, the same material of outsourcing object of the upper plate and the heat exchanger tube or the heat exchanger tube
Matter.
If heat exchange tube material is other nonmetallic materials, PTFE upper plate is changed to nonmetallic materials of the same race, and welding rod is changed to phase
The welding rod of adaptation.
If heat exchange tube material is metal material, PTFE upper plate is changed to same metal material, and welding rod is changed to adaptable weldering
Item.
In conclusion the invention has the following advantages:
1. a kind of top plate of tubular type gas-gas heat exchanger of the present invention passes through upper head plate, bottom plate and ventilation sleeve
At the structure of front spring that replaces of bilayer+fixation rod structure, strength and stiffness are greater than the steel plate of 60mm thickness, while weight only has
The one third of 60mm steel plate considerably reduces the weight of overall heat exchange device, also reduces the installation and civil engineering of heat exchanger
Project amount；
2. a kind of top plate of tubular type gas-gas heat exchanger of the present invention to sealing plate, upper and lower end plate and ventilation by covering
Pipe forms a chamber and is blown into high pressure gas formation air curtain to realize that sealing cooperation above structure has prevented hot and cold air well
Mixing, while the corrosion for avoiding metal parts improves service life and operational reliability.
Detailed description of the invention
Fig. 1 is a kind of structural diagram of base plate of tubular type gas-gas heat exchanger；
In figure, 1- upper head plate, 2- bottom plate, 3- through-hole, 4- ventilation casing, 41- ventilation casing stomata, 5- sealing plate, 51-
Connecting hole under sealing plate stomata, 6- upper plate, the upper connecting hole of 61-, 7- lower plate, 71-.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Embodiment in the present invention, ordinary skill
Personnel's all other embodiment obtained under the premise of not doing creative work, shall fall within the protection scope of the present invention.
With embodiment, the present invention is described in detail with reference to the accompanying drawing.
Embodiment 1: a kind of top plate of tubular type gas-gas heat exchanger, the double-layer structure including upper head plate 1 and the composition of bottom plate 2,
And the perforation double-layer structure and several through-holes 3 for passing through heat exchanger tube, ventilation casing 4, institute are provided on the through-hole 3
It states and offers ventilation casing stomata 41 on ventilation casing 4, the internal diameter of the ventilation casing 4 is greater than the outer of the heat exchanger tube after thermal expansion
Diameter, it is described ventilation casing 4 upper surface it is concordant with the upper surface of the upper head plate 1, it is described ventilate casing 4 lower end surface with it is described
The lower end surface of bottom plate 2 is concordant；The double-layer structure surrounding is provided with sealing plate 5, and the sealing plate 5 is located at the upper head plate 1
Between the bottom plate 2, sealing plate stomata 51 is offered on the sealing plate 5；Upper plate 6, institute are equipped on the upper head plate 1
It states and offers upper connecting hole 61 compatible with 3 position of through-hole on upper plate 6, the internal diameter of the upper connecting hole 61 is greater than described
The outer diameter of heat exchanger tube.
The sum of area of the sealing plate stomata 51 is differed with the sum of the area of the ventilation casing stomata 41 less than 1 square
Decimetre.
The contact site of the sealing plate 5 and the upper head plate 1, the bottom plate 2 is mutually sealed by welding.
The ventilation casing 4 is mutually sealed with the upper head plate 1, the bottom plate 2 by welding.
The upper plate 6 is stretched out in the upper end of the heat exchanger tube, and the length of stretching is equal to the thickness of the upper plate 6, the heat exchange
Pipe, which stretches out between the part and the upper plate 6 of the upper plate 6, is welded with right angle welding seam.Here the outside of heat exchanger tube is polytetrafluoroethyl-ne
Alkene material, the material of upper plate 6 are also polytetrafluoroethylene material, are welded together with PFA welding rod.
Lower plate 7 is bonded under the bottom plate 2, the lower plate 7 is ceramic wafer, is offered thereon and 3 position of through-hole
Compatible lower connecting hole 71, the internal diameter of the lower connecting hole 71 are greater than the outer diameter of the heat exchanger tube.
Embodiment 2: a kind of top plate of tubular type gas-gas heat exchanger, the double-layer structure including upper head plate 1 and the composition of bottom plate 2,
And the perforation double-layer structure and several through-holes 3 for passing through heat exchanger tube, ventilation casing 4, institute are provided on the through-hole 3
It states and offers ventilation casing stomata 41 on ventilation casing 4, the internal diameter of the ventilation casing 4 is greater than the outer of the heat exchanger tube after thermal expansion
Diameter, it is described ventilation casing 4 upper surface it is concordant with the upper surface of the upper head plate 1, it is described ventilate casing 4 lower end surface with it is described
The lower end surface of bottom plate 2 is concordant；The double-layer structure surrounding is provided with sealing plate 5, and the sealing plate 5 is located at the upper head plate 1
Between the bottom plate 2, sealing plate stomata 51 is offered on the sealing plate 5；Upper plate 6, institute are equipped on the upper head plate 1
It states and offers upper connecting hole 61 compatible with 3 position of through-hole on upper plate 6, the internal diameter of the upper connecting hole 61 is greater than described
The outer diameter of heat exchanger tube.
The sum of area of the sealing plate stomata 51 is differed with the sum of the area of the ventilation casing stomata 41 less than 1 square
Decimetre.
The contact site of the sealing plate 5 and the upper head plate 1, the bottom plate 2 is mutually sealed by welding.
The ventilation casing 4 is mutually sealed with the upper head plate 1, the bottom plate 2 by welding.
The upper plate 6 is stretched out in the upper end of the heat exchanger tube, and the length of stretching is equal to the thickness of the upper plate 6, the heat exchange
Pipe, which stretches out between the part and the upper plate 6 of the upper plate 6, is welded with right angle welding seam.Here the outside of heat exchanger tube is polytetrafluoroethyl-ne
Alkene material, the material of upper plate 6 are also polytetrafluoroethylene material, are welded together with PFA welding rod；The heat exchanger tube also can be used
Other corrosion-resistant and high temperature materials are made, for example silicon rubber, stainless steel and a variety of materials with corrosion-inhibiting coating etc., accordingly
, the upper plate 6 changes same material into, and welding rod and 6 material of upper plate are adapted.
The bottom plate 2 is lower to have lower plate 7 by rivet interlacement, and the lower plate 7 is plate made of polytetrafluoroethylene (PTFE), thereon
Lower connecting hole 71 compatible with 3 position of through-hole is offered, the internal diameter of the lower connecting hole 71 is greater than the heat exchanger tube
Outer diameter.
Claims (8)
1. a kind of top plate of tubular type gas-gas heat exchanger, it is characterised in that: the bilayer constituted including upper head plate (1) and bottom plate (2)
Structure, and the perforation double-layer structure and several through-holes (3) for passing through heat exchanger tube are provided on the through-hole (3) logical
Gas bushing (4) offers at least one ventilation casing stomata (41) on the ventilation casing (4)；The double-layer structure surrounding is set
It is equipped with sealing plate (5), the sealing plate (5) is between the upper head plate (1) and the bottom plate (2), the sealing plate (5)
On offer sealing plate stomata (51)；Be equipped with upper plate (6) on the upper head plate (1), offered on the upper plate (6) with it is described
The compatible upper connecting hole (61) in through-hole (3) position, the internal diameter of the upper connecting hole (61) are bigger than the outer diameter of the heat exchanger tube
0.1-1 millimeters；The sealing plate (5) and the contact site of the upper head plate (1), the bottom plate (2) are mutually sealed by welding；
The ventilation casing (4) is mutually sealed with the upper head plate (1), the bottom plate (2) by welding.
2. a kind of top plate of tubular type gas-gas heat exchanger according to claim 1, it is characterised in that: the ventilation casing (4)
Internal diameter specific thermic dilatation after heat exchanger tube outer diameter it is 0.2-2 millimeters big.
3. a kind of top plate of tubular type gas-gas heat exchanger according to claim 1, it is characterised in that: the sealing plate stomata
(51) the sum of area is differed with the sum of the area of ventilation casing stomata (41) less than 1 square decimeter.
4. a kind of top plate of tubular type gas-gas heat exchanger according to claim 1, it is characterised in that: the ventilation casing (4)
Upper surface it is concordant with the upper surface of the upper head plate (1), the lower end surface and the bottom plate (2) of ventilation casing (4)
Lower end surface is concordant.
5. a kind of top plate of tubular type gas-gas heat exchanger according to claim 1, it is characterised in that: the upper end of the heat exchanger tube
It stretches out the upper plate (6), the length of stretching is equal to the thickness of the upper plate (6), and the heat exchanger tube stretches out the portion of the upper plate (6)
Divide and is welded with right angle welding seam between the upper plate (6).
6. a kind of top plate of tubular type gas-gas heat exchanger described in any one in -5 according to claim 1, it is characterised in that: described
It is equipped under bottom plate (2) lower plate (7), offers lower connecting hole compatible with the through-hole (3) position on the lower plate (7)
(71), the internal diameter of the lower connecting hole (71) is 0.1-0.3 millimeters bigger than the outer diameter of the heat exchanger tube.
7. a kind of top plate of tubular type gas-gas heat exchanger according to claim 6, it is characterised in that: the lower plate (7) and institute
Bottom plate (2) is stated mutually to be bonded or by fixing piece Joint.
8. a kind of top plate of tubular type gas-gas heat exchanger described in any one in -5 according to claim 1, it is characterised in that: described
The outsourcing object same material of upper plate (6) and the heat exchanger tube or the heat exchanger tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610775723.8A CN106197126B (en) | 2016-08-31 | 2016-08-31 | A kind of top plate of tubular type gas-gas heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610775723.8A CN106197126B (en) | 2016-08-31 | 2016-08-31 | A kind of top plate of tubular type gas-gas heat exchanger |
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| CN106197126A CN106197126A (en) | 2016-12-07 |
| CN106197126B true CN106197126B (en) | 2019-03-15 |
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| CN201610775723.8A Active CN106197126B (en) | 2016-08-31 | 2016-08-31 | A kind of top plate of tubular type gas-gas heat exchanger |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106610249A (en) * | 2016-12-29 | 2017-05-03 | 湖州鼎诚环保科技有限公司 | An upper plate sealing structure for a gas-gas type heat exchanger |
| CN106610238A (en) * | 2016-12-29 | 2017-05-03 | 湖州鼎诚环保科技有限公司 | Gas-gas type heat exchanger |
| CN107448964A (en) * | 2016-12-29 | 2017-12-08 | 湖州鼎诚环保科技有限公司 | A kind of smoke processing system for waste gas generated by burning garbage processing |
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| US4182407A (en) * | 1976-10-21 | 1980-01-08 | B. V. Neratoom | Tube sheet comprising two interspaced sheet members and heat exchanger comprising at least one such tube sheet |
| CN2044712U (en) * | 1988-11-02 | 1989-09-20 | 姜树忠 | Condenser haveing row lined glass-tube with swelling lining |
| JPH09257381A (en) * | 1995-11-13 | 1997-10-03 | Mitsubishi Heavy Ind Ltd | Tube plate assembly for double tube of heat exchanger and its manufacture |
| CN1258346A (en) * | 1997-05-28 | 2000-06-28 | 桑德维克公司 | Heat exchanger with tubes suspended into lower end plate allowing thermal movement, and end plate therefor |
| CN206037809U (en) * | 2016-08-31 | 2017-03-22 | 浙江格尔泰斯环保特材科技股份有限公司 | Top plate of tubular gas -to -gas heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3715712C1 (en) * | 1987-05-12 | 1988-07-21 | Borsig Gmbh | Heat exchanger especially for cooling cracked gas |
| CN2906526Y (en) * | 2006-03-24 | 2007-05-30 | 中橡集团炭黑工业研究设计院 | Sealing device on the end of shell-and-tube air preheater heat exchange tube |
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2016
- 2016-08-31 CN CN201610775723.8A patent/CN106197126B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4182407A (en) * | 1976-10-21 | 1980-01-08 | B. V. Neratoom | Tube sheet comprising two interspaced sheet members and heat exchanger comprising at least one such tube sheet |
| CN2044712U (en) * | 1988-11-02 | 1989-09-20 | 姜树忠 | Condenser haveing row lined glass-tube with swelling lining |
| JPH09257381A (en) * | 1995-11-13 | 1997-10-03 | Mitsubishi Heavy Ind Ltd | Tube plate assembly for double tube of heat exchanger and its manufacture |
| CN1258346A (en) * | 1997-05-28 | 2000-06-28 | 桑德维克公司 | Heat exchanger with tubes suspended into lower end plate allowing thermal movement, and end plate therefor |
| CN206037809U (en) * | 2016-08-31 | 2017-03-22 | 浙江格尔泰斯环保特材科技股份有限公司 | Top plate of tubular gas -to -gas heat exchanger |
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| CN106197126A (en) | 2016-12-07 |
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Effective date of registration: 20201030 Address after: No.377, Shanyou Road, Huzhou City, Zhejiang Province, 313000 Patentee after: ZHEJIANG DINGCHENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 313000, No. 501, West Yang Road, Huzhou economic and Technological Development Zone, Zhejiang, Huzhou Patentee before: ZHEJIANG KERTICE HI-TECH FLUOR-MATERIAL Co.,Ltd. |
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Denomination of invention: A top plate of a tubular gas-to-air heat exchanger Effective date of registration: 20220801 Granted publication date: 20190315 Pledgee: South Taihu New Area sub branch of Huzhou Wuxing Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG DINGCHENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2022980011679 |