CN203772105U - Detachable type connection structure between heat exchange pipe and pipe plate - Google Patents
Detachable type connection structure between heat exchange pipe and pipe plate Download PDFInfo
- Publication number
- CN203772105U CN203772105U CN201420127021.5U CN201420127021U CN203772105U CN 203772105 U CN203772105 U CN 203772105U CN 201420127021 U CN201420127021 U CN 201420127021U CN 203772105 U CN203772105 U CN 203772105U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- adpting flange
- exchanger tube
- gland
- tube
- 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.)
- Expired - Lifetime
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 2
- 238000006056 electrooxidation reaction Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000036647 reaction Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005844 autocatalytic reaction Methods 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a detachable type connection structure between a heat exchange pipe and a pipe plate. The connection structure comprises the pipe plate and the heat exchange pipe, wherein the pipe plate is provided with a pipe hole. The connection structure is characterized by comprising a connection flange; the connection flange is fixedly installed inside the pipe hole; the heat exchange pipe penetrates the connection flange; the external wall of the heat exchange pipe and the internal wall of the connection flange are in sealing connection; a heat exchange portion which exposes out of the connection flange is provided with an annular gland in a sleeve mode; a reactive metal ring is arranged between the gland and the connection flange; the gland, the reactive metal ring and the connection flange are fixedly connected through bolts. The connection structure has the advantages of being simple in structure, convenient to install, guaranteeing sealing performance, being convenient to clear and maintain and performing anodic protection on the integral heat exchange pipe to reduce electrochemical corrosion influences to the heat exchange pipe.
Description
Technical field
The utility model relates to chemical industry equipment field, particularly a kind of for the detachable heat exchanger tube in chemical industry for making chlorine and alkali field and tube sheet syndeton.
Background technology
Heat exchanger is chemical industry, oil refining, power, food, light industry, atomic energy, pharmacy, aviation and the widely used a kind of common processing equipment of other many industrial departments, but the industry in exchange heat pipe serious corrosion, for example, in chlor-alkali industry, due to the impact of medium and stray electrical current, the especially severe of the heat exchanger tube of heat exchanger corrosion, if a heat exchanger tube corrosion, occur leaking, whole heat exchanger is just done for, and not only affects the production cycle, and causes the very large wasting of resources.Therefore national chlor-alkali plant is annual according to statistics will expend nearly ten million yuan.
A kind of heat exchanger---the shell-and-tube heat exchanger that we are more common, the connected mode of heat exchanger tube and tube sheet is mainly to adopt the modes such as welding, expanded joint, expanded and welded tube joint, and as shown in Figure 1, it is simple in structure easy to use, and price is also more preferential.But its heat exchanger tube can not be dismantled, and when weld seam appearance is between the two corroded, the liquid of lower end shell side is easy to be left to by gap the tube side of upper end, causes leakage; If wherein have part heat exchanger tube blocked, can affect whole efficiency of heat exchanger.
Summary of the invention
The utility model provides a kind of sealing property better according to the deficiencies in the prior art, syndeton between demountable heat exchanger tube and tube sheet again, this syndeton facilitates regular exchange heat pipe to clean and change, and so not only economizes on resources but also reduces production costs.
The technical scheme that the utility model provides: the syndeton between described a kind of removable heat exchanger tube and tube sheet includes tube sheet and heat exchanger tube, at tube sheet, offer pore, it is characterized in that: this syndeton also comprises adpting flange, adpting flange is fixedly mounted in pore, heat exchanger tube is through adpting flange, between its outer wall and adpting flange inwall, be tightly connected, the part of exposing adpting flange at heat exchanger tube is arranged with annular gland, between gland and adpting flange, be provided with activity becket, and gland, active metal ring and adpting flange are bolted to connection.
The further technical scheme of the utility model: be tightly connected by containment member between the tube wall of described heat exchanger tube and adpting flange, containment member is comprised of sealing ring and airtight and watertight padding layer; Between heat exchanger tube outer wall and adpting flange inwall, form an annular gap, sealing ring is arranged on the bottom of annular gap, described annular gland is the T-shaped lid of hollow, be set on heat exchanger tube, its underpart embeds the top, annular gap between heat exchanger tube and adpting flange, position, annular gap between annular gland bottom surface and sealing ring is filled with airtight and watertight padding layer, and compresses in effect lower seal packing layer and the seal sealing of annular gland.
The utility model is technical scheme preferably: between described adpting flange and tube sheet, be provided with annular backing plate, and adpting flange is connected with tube sheet full weld by annular backing plate.
The utility model is technical scheme preferably: described bolt has two at least, is equally distributed on annular gland.
The active metal that active metal ring in the utility model is used is as long as the metal or its alloy that come in the periodic table of chemical element before Fe element can; The soft graphite that described airtight and watertight padding layer adopts.
Good effect of the present utility model is:
1, the utility model, by the connected mode between traditional heat exchange pipe head and tube sheet, has become bolt connection, can exchange at any time heat pipe and dismantle, and reaches the object of cleaning, maintenance, replacing;
2, the utility model is also increasing gland, filler and sealing ring, plays good sealing effectiveness, better than existing welding, expanded joint sealing effectiveness;
3, the utility model has increased active metal ring, by discharging electronics, suppresses Fe → Fe
z++ 2e
-the forward of electrochemical reaction carries out, and reaches the object of protection heat exchanger tube.
The utility model overall structure is simple, easy for installation, can guarantee sealing property, is convenient to again cleaning and safeguards, whole heat exchanger tube is carried out to anodic protection simultaneously, to reduce the impact of electrochemical corrosion exchange heat pipe.
Accompanying drawing explanation
Fig. 1 is tube sheet and heat exchanger tube syndeton schematic diagram in existing shell-and-tube heat exchanger;
Fig. 2 is structural representation of the present utility model.
In figure: 1-tube sheet, 2-heat exchanger tube, 3-bolt, 4-gland, 5-active metal ring, 6-adpting flange, 7-annular backing plate, 8-airtight and watertight padding layer, 9-sealing ring, 10-pore.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described.In Fig. 2, syndeton between described a kind of removable heat exchanger tube and tube sheet includes tube sheet 1 and heat exchanger tube 2, at tube sheet 1, offer pore 10, it is characterized in that: this syndeton also comprises adpting flange 6, adpting flange 6 is fixedly mounted in pore 10, at adpting flange 6 and tube sheet 1 connecting portion, be provided with annular backing plate 7, and be connected with annular backing plate 7, tube sheet 1 full weld; Heat exchanger tube 2, through adpting flange 6, is tightly connected by containment member between its outer wall and adpting flange 6 inwalls, and sealing member is comprised of sealing ring 9 and airtight and watertight padding layer 8; Between heat exchanger tube 2 outer walls and adpting flange 6 inwalls, form an annular gap, sealing ring 9 is arranged on the bottom of annular gap, then in annular gap, fill airtight and watertight padding and form airtight and watertight padding layer 8, press down in the top an annular gland 4, annular gland 4 is the T-shaped lid of hollow, be set in the part that heat exchanger tube 2 exposes adpting flange 6, its underpart just embeds between heat exchanger tube 2 and adpting flange 6 and by airtight and watertight padding layer 8 and compresses; Between gland 4 and adpting flange 6, be provided with activity becket 5, on gland 4 and active metal ring 5, all offer installing hole, bolt 3 through after gland 4 and active metal ring 5 with adpting flange 6 on bolt hole tighten, just just gland 4, active metal ring 5 are fixedly connected with adpting flange 6, described activity becket 5 aluminium or its alloy, also can be other active metals, described bolt 3 can be symmetrically arranged two bolts, can be also that plural bolt is equally distributed on annular gland 4.
When the utility model is installed, first by adpting flange 6, annular backing plate 7 is connected with tube sheet 1 full weld, adpting flange 6 is fixed in the pore 10 on tube sheet 1, then sealing ring 9 is arranged on to the bottom of adpting flange 6 inwalls, again heat exchanger tube 2 is passed from adpting flange 6 and sealing ring 9, in annular gap between heat exchanger tube 2 outer walls and adpting flange 6 inwalls, fill airtight and watertight padding afterwards, when being filled into certain altitude, just can compress by gland 4, gland 4 was first set in live metal ring 5 lower end of gland 4 before compressing, after gland 4 compresses, just pass through bolt 3 by gland 4, active metal ring 5 is fixedly connected with adpting flange 6, on adpting flange 6, offer bolt hole, position at gland 4 and active metal ring 5 corresponding bolts hole offers respectively installing hole, under gland stationary state, its lower end just compresses airtight and watertight padding, heat exchanger tube 2 and adpting flange 6 are tightly connected, its top also just compresses the close becket 5 of activity and adpting flange 6.
Because Fe is under the condition of medium and stray electrical current, can there is following electrochemical reaction:
In acid medium, can occur
In alkaline medium, can occur
If there is Cl
-exist and can occur
FeCl
2+2H
2O=Fe(OH)↓
2+2HCl
This reaction can make environmental PH decline, and the cell reaction forward migration that Fe dissolves is accelerated, and just there will be obvious corrosion acceleration and autocatalysis phenomenon.
, can near tube head, there is following reaction in active metal ring 5 aluminium in the utility model or its alloy (other active metal principles are similar):
In acid medium, can occur
In alkaline medium, can occur
This reaction can make near electronics heat exchanger tube intensive, suppresses the cell reaction that Fe dissolves, and has played the effect of anodic protection.
The utility model makes the syndeton between heat exchanger tube and tube sheet into bolted form, for convenience detach, and reaches sealing effectiveness by the pressuring action of airtight and watertight padding, sealing ring, bolt.Active metal ring between gland and flange, by discharging electronics, plays the effect of anodic protection.
Claims (4)
1. the syndeton between a removable heat exchanger tube and tube sheet, include tube sheet (1) and heat exchanger tube (2), at tube sheet (1), offer pore (10), it is characterized in that: this syndeton also comprises adpting flange (6), adpting flange (6) is fixedly mounted in pore (10), heat exchanger tube (2) is through adpting flange (6), between its outer wall and adpting flange (6) inwall, be tightly connected, the part of exposing adpting flange (6) at heat exchanger tube (2) is arranged with annular gland (4), between gland (4) and adpting flange (6), be provided with active metal ring (5), and gland (4), active metal ring (5) is fixedly connected with by bolt (3) with adpting flange (6).
2. the syndeton between a kind of removable heat exchanger tube according to claim 1 and tube sheet, it is characterized in that: between the tube wall of described heat exchanger tube (2) and adpting flange (6), by containment member, be tightly connected, containment member is comprised of sealing ring (9) and airtight and watertight padding layer (8); Between heat exchanger tube (2) outer wall and adpting flange (6) inwall, form an annular gap, sealing ring (9) is arranged on the bottom of annular gap, described annular gland (4) is the T-shaped lid of hollow, be set on heat exchanger tube (2), its underpart embeds the top, annular gap between heat exchanger tube (2) and adpting flange (6), position, annular gap between annular gland (4) bottom surface and sealing ring (9) is filled with airtight and watertight padding layer (8), and compresses with sealing ring (9) sealing at the effect lower seal packing layer (8) of annular gland (4).
3. the syndeton between a kind of removable heat exchanger tube according to claim 1 and 2 and tube sheet, it is characterized in that: between described adpting flange (6) and tube sheet (1), be provided with annular backing plate (7), and adpting flange (6) is connected with tube sheet (1) full weld by annular backing plate (7).
4. the syndeton between a kind of removable heat exchanger tube according to claim 1 and 2 and tube sheet, is characterized in that: described bolt (3) has two at least, is equally distributed on annular gland (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127021.5U CN203772105U (en) | 2014-03-20 | 2014-03-20 | Detachable type connection structure between heat exchange pipe and pipe plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127021.5U CN203772105U (en) | 2014-03-20 | 2014-03-20 | Detachable type connection structure between heat exchange pipe and pipe plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772105U true CN203772105U (en) | 2014-08-13 |
Family
ID=51289289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420127021.5U Expired - Lifetime CN203772105U (en) | 2014-03-20 | 2014-03-20 | Detachable type connection structure between heat exchange pipe and pipe plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203772105U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485711A (en) * | 2015-04-28 | 2016-04-13 | 无锡华光锅炉股份有限公司 | Tubular air preheater end connection structure |
| CN106440922A (en) * | 2016-10-25 | 2017-02-22 | 洁华控股股份有限公司 | Sealing and wear-resisting device for heat exchanger |
| CN106641580A (en) * | 2016-12-21 | 2017-05-10 | 浙江大学 | Connection device and method of anti-corrosion tube sheet heat exchanger |
| CN108507238A (en) * | 2018-03-12 | 2018-09-07 | 孔瑞清 | evaporator and its application in heat pump unit |
| CN108759501A (en) * | 2018-06-15 | 2018-11-06 | 孙崇正 | A kind of assembled flue gas condenser |
| CN109482120A (en) * | 2018-12-14 | 2019-03-19 | 南通三圣石墨设备科技股份有限公司 | Graphite heat exchanger and method built in a kind of novel reaction kettle |
-
2014
- 2014-03-20 CN CN201420127021.5U patent/CN203772105U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485711A (en) * | 2015-04-28 | 2016-04-13 | 无锡华光锅炉股份有限公司 | Tubular air preheater end connection structure |
| CN105485711B (en) * | 2015-04-28 | 2018-05-15 | 无锡华光锅炉股份有限公司 | A kind of tubular air preheater end connecting |
| CN106440922A (en) * | 2016-10-25 | 2017-02-22 | 洁华控股股份有限公司 | Sealing and wear-resisting device for heat exchanger |
| CN106641580A (en) * | 2016-12-21 | 2017-05-10 | 浙江大学 | Connection device and method of anti-corrosion tube sheet heat exchanger |
| CN108507238A (en) * | 2018-03-12 | 2018-09-07 | 孔瑞清 | evaporator and its application in heat pump unit |
| CN108507238B (en) * | 2018-03-12 | 2021-06-22 | 云南穗特丰农业科技有限公司 | Evaporator and application thereof in heat pump unit |
| CN108759501A (en) * | 2018-06-15 | 2018-11-06 | 孙崇正 | A kind of assembled flue gas condenser |
| CN109482120A (en) * | 2018-12-14 | 2019-03-19 | 南通三圣石墨设备科技股份有限公司 | Graphite heat exchanger and method built in a kind of novel reaction kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Detachable type connection structure between heat exchange pipe and pipe plate Effective date of registration: 20180119 Granted publication date: 20140813 Pledgee: Wuhan Jiangxia branch of the Wuhan rural commercial bank, Limited by Share Ltd. Pledgor: WUHAN EAST PETROCHEMICAL HEAVY EQUIPMENT Co.,Ltd. Registration number: 2018420000001 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190109 Granted publication date: 20140813 Pledgee: Wuhan Jiangxia branch of the Wuhan rural commercial bank, Limited by Share Ltd. Pledgor: WUHAN EAST PETROCHEMICAL HEAVY EQUIPMENT Co.,Ltd. Registration number: 2018420000001 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Detachable type connection structure between heat exchange pipe and pipe plate Effective date of registration: 20190507 Granted publication date: 20140813 Pledgee: Jiangxia Branch of Hankou Bank Co.,Ltd. Pledgor: WUHAN EAST PETROCHEMICAL HEAVY EQUIPMENT Co.,Ltd. Registration number: 2019420000019 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221103 Granted publication date: 20140813 Pledgee: Jiangxia Branch of Hankou Bank Co.,Ltd. Pledgor: WUHAN EAST PETROCHEMICAL HEAVY EQUIPMENT Co.,Ltd. Registration number: 2019420000019 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| CX01 | Expiry of patent term |