CN202582354U - Corrosion protective shell-and-tube heat exchanger - Google Patents
Corrosion protective shell-and-tube heat exchanger Download PDFInfo
- Publication number
- CN202582354U CN202582354U CN 201220190429 CN201220190429U CN202582354U CN 202582354 U CN202582354 U CN 202582354U CN 201220190429 CN201220190429 CN 201220190429 CN 201220190429 U CN201220190429 U CN 201220190429U CN 202582354 U CN202582354 U CN 202582354U
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- tube
- heat exchanger
- shell
- heat exchanging
- exchanging tube
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a corrosion protective shell-and-tube heat exchanger. Two fixed plates and a heat exchanging tube are arranged in a shell; the heat exchanging tube is fixed between the two fixed plates and coaxial with the shell; a deflector baffle for supporting the heat exchanging tube is arranged on the inner wall of the shell; the deflector baffle is connected with another deflector baffle by a distance tube; the deflector baffles are made of conductive materials; and the deflector baffles and the distance tube form a circuit path. With zinc or aluminum-magnesium and aluminum-magnesium-zinc as anodes, the deflector baffles for supporting the heat exchanging tube form the circuit path together with the distance tube, the anodes are electrolyzed from anode metal atoms into metal ions in a shell side liquid so as to provide electrons to the heat exchanging tube, so that the corrosion process of an external pipeline of the heat exchanging tube from the atoms to the irons is slowed or eliminated, corrosion of the heat exchanging tube is avoided and a purpose of protecting the heat exchanging tube is achieved; meanwhile, the corrosion protective shell-and-tube heat exchanger provided by the utility model has the advantages of reasonable design, simple structure, long service life and low product cost and can be promoted and used among various shell-and-tube heat exchangers.
Description
Technical field
The utility model relates to a kind of shell-and-tube heat exchanger that can etch-proof anti-corrosion protection.
Background technology
In commercial production,, be referred to as heat exchanger for realizing a kind equipment of heat transfer process between the material.It is a kind of common apparatus of chemical industry, oil refining, power, the energy, atomic energy and other many industrial department extensive uses.For industry such as the chemical industry that develops rapidly, oil refining, heat exchanger is particularly important.Usually in the construction in chemical plant, heat exchanger accounts for 10～20% of gross investment.In oil plant, heat exchanger accounts for 35～40% of whole technological equipment investment.
In heat transmission equipment, most widely used is shell-and-tube heat exchanger.It is wide that it has selection range, the heat exchange surface convenience for washing, and adaptability is strong, and treating capacity is big, can bear characteristics such as high temperature and high pressure.To such an extent as to heat exchanger technology is the achievement that combines each side such as thermal conduction study, applied mechanics, material science, metallurgical technology, manufacturing technology technical physics, simultaneously, because the anxiety of the energy has been alleviated in the development of heat exchanger technology greatly.
Carrying out shell-and-tube heat exchanger when design, the heat exchanging device is various zero, the material of parts, should choose according to the corrosive nature of operation of equipment pressure, operating temperature, fluid and to the requirement of the manufacturing process performance of material etc.Generally in order to satisfy operation of equipment pressure and operating temperature, both considering from the intensity or the rigidity of equipment, is the comparison easy to reach, but to the decay resistance of material, often becomes a complicated problems sometimes.As inconsiderate in this respect, selection is improper, not only can influence the life-span of heat exchanger, and improves the cost of equipment greatly.General heat exchanger mainly is that the temperature through different medium in tube side and the shell side realizes heat transfer.In oil refinery process, because of the oil of refining contains H
2S, CO
2Deng corrosive gas,, mainly occur on the heat exchanger tube owing to reasons such as burn into impact, vibration, stress can cause damage by the heat exchanging device; Because of reasons such as burn into foulings; Heat exchanger tube is extracted relatively difficulty out, and it is bigger to change work difficulty, and tube-to-tube sheet connection mainly adopts Type of Welding to realize; In case replace tubes will influence normal production.
The utility model content
In order to solve shell-and-tube heat exchanger easy scale formation of the prior art and the hurtful problem of corrosion exchange heat pipe, the utility model provides a kind of shell-and-tube heat exchanger that utilizes the novel anti-corrosion protection of electrochemical anti-corrosive principle protection Tube Sheet of Heat Exchanger protect it from corrosion.
The technical scheme that solves the problems of the technologies described above is: in housing, be provided with two fixed heads and be fixed between two fixed heads and the heat exchanger tube coaxial with housing; Inner walls is provided with the deflection plate that supports heat exchanger tube; Connect through distance sink tube between deflection plate and another deflection plate; Said deflection plate is a conductive metal sheet, and deflection plate and distance sink tube form circuit pathways.
Above-mentioned conducting metal is zinc or magnalium or magnalium kirsite.
The outer wall of above-mentioned heat exchanger tube is provided with insulation tube.
Above-mentioned insulation tube is the composite steel wire rubber sleeve.
The utility model adopts zinc or magnalium, magnalium zinc as anode through the deflection plate that will support heat exchanger; Form circuit pathways with distance sink tube; Anode is electrolyzed to produce metal ion by the anode metal atom in shell side liquid, for heat exchanger tube provides electronics, the corrosion process that makes the heat exchanger tube Outer Tube become ion by atom is slowed down or eliminated; Avoid the corrosion of heat exchanger tube, realized the purpose of protection heat exchanger tube; Simultaneously reasonable in design, simple in structure, the long service life of the utility model, product cost are low, can in various shell-and-tube heat exchangers, promote the use of.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is deflection plate of the utility model and the electrochemical protection loop sketch map that heat exchanger tube is formed.
Fig. 3 is the deflection plate of the utility model and the loop current figure of heat exchanger tube.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified, but the utility model is not limited only to following embodiment.
Embodiment 1
In Fig. 1～3, the shell-and-tube heat exchanger of the anti-corrosion protection of present embodiment is made up of housing 1, fixed head 2, distance sink tube 3, deflection plate 4, heat exchanger tube 5 and insulation tube 6 connections.
Radially fixing two fixed heads 2 in two ends in housing 1; Between two fixed heads 2, axially be provided with heat exchanger tube 5 along housing 1; Heat exchanger tube 5 passes the deflection plate 4 that radially is provided with along housing 1 from a fixed head 2 and extends to fixed head 2; Through deflection plate 4 support fixation, the sheathed insulation tube of being processed by the composite steel wire rubber sleeve 6 on the outer wall of heat exchanger tube 5 is because deflection plate 4 directly contacts with heat exchanger tube 5; Can make the protective current short circuit, behind the sheathed insulation tube 6 of the outer wall of heat exchanger tube 5, can make and insulate between deflection plate 4 and the heat exchanger tube 5.A deflection plate 4 connects through distance sink tube 3 with another deflection plate 4, controls the distance between the deflection plate 4 through distance sink tube 3, and deflection plate 4 adopts zine plate to process, and can form turning circuit with distance sink tube 3.
During use, fill fluid in the cavity between the outer wall of housing 1 inwall and heat exchanger tube 5, constitute shell-side fluid; Deflection plate 4 is immersed in the shell-side fluid, as anode, in shell-side fluid, is electrolyzed to produce metal ion by metallic atom; Metal ion is the electrochemical protection loop that shell-side fluid constitutes sacrificial anode through distance sink tube 3 forming circuit paths and conducting solution, and the electronics that the anode ionization produces flows to heat exchanger tube 5 through the loop; For heat exchanger tube 5 provides electronics; Changed the current potential of heat exchanger tube 5, the corrosion process that makes heat exchanger tube 5 become ion by atom is slowed down or is eliminated, and has avoided the corrosion of heat exchanger tube 5.
In the present embodiment, deflection plate 4 adopts the magnalium material to process, and other parts and connecting relation thereof and operation principle are identical with embodiment 1.
Embodiment 3
In the present embodiment, deflection plate 4 adopts the magnalium Zinc material to process, and other parts and connecting relation thereof and operation principle are identical with embodiment 1.
Claims (4)
1. the shell-and-tube heat exchanger of an anti-corrosion protection; In housing (1), be provided with two fixed heads (2) and be fixed between two fixed heads (2) and the heat exchanger tube (5) coaxial with housing (1); Housing (1) inwall is provided with the deflection plate (4) that supports heat exchanger tube (5); Connect through distance sink tube (3) between a deflection plate (4) and another deflection plate (4), it is characterized in that: said deflection plate (4) is a conductive metal sheet, and deflection plate (4) forms circuit pathways with distance sink tube (3).
2. the shell-and-tube heat exchanger of anti-corrosion protection according to claim 1, it is characterized in that: said conducting metal is zinc or magnalium or magnalium kirsite.
3. the shell-and-tube heat exchanger of anti-corrosion protection according to claim 1, it is characterized in that: the outer wall at heat exchanger tube (5) is provided with insulation tube (6).
4. the shell-and-tube heat exchanger of anti-corrosion protection according to claim 3, it is characterized in that: said insulation tube (6) is the composite steel wire rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220190429 CN202582354U (en) | 2012-04-28 | 2012-04-28 | Corrosion protective shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220190429 CN202582354U (en) | 2012-04-28 | 2012-04-28 | Corrosion protective shell-and-tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202582354U true CN202582354U (en) | 2012-12-05 |
Family
ID=47251757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220190429 Expired - Fee Related CN202582354U (en) | 2012-04-28 | 2012-04-28 | Corrosion protective shell-and-tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202582354U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637784A (en) * | 2020-06-16 | 2020-09-08 | 英特换热设备(浙江)有限公司 | Protection structure for preventing corrosion of copper pipe in heat exchanger |
| CN114392707A (en) * | 2022-02-25 | 2022-04-26 | 山东大明精细化工有限公司 | Reactor heat exchange system for producing sulfonic acid surfactant |
| CN115092987A (en) * | 2022-06-13 | 2022-09-23 | 厦门绿信环保科技股份有限公司 | Corrosion prevention device of heat exchanger and application method |
-
2012
- 2012-04-28 CN CN 201220190429 patent/CN202582354U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637784A (en) * | 2020-06-16 | 2020-09-08 | 英特换热设备(浙江)有限公司 | Protection structure for preventing corrosion of copper pipe in heat exchanger |
| CN114392707A (en) * | 2022-02-25 | 2022-04-26 | 山东大明精细化工有限公司 | Reactor heat exchange system for producing sulfonic acid surfactant |
| CN114392707B (en) * | 2022-02-25 | 2023-09-22 | 山东大明精细化工有限公司 | Reactor heat exchange system for producing sulfonic acid surfactant |
| CN115092987A (en) * | 2022-06-13 | 2022-09-23 | 厦门绿信环保科技股份有限公司 | Corrosion prevention device of heat exchanger and application method |
| CN115092987B (en) * | 2022-06-13 | 2024-05-03 | 厦门绿信环保科技股份有限公司 | Corrosion prevention device of heat exchanger and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20140428 |