CN201449185U - Spiral baffle plate heat exchanger of aluminized carbon steel and aluminum - Google Patents
Spiral baffle plate heat exchanger of aluminized carbon steel and aluminum Download PDFInfo
- Publication number
- CN201449185U CN201449185U CN2009200293435U CN200920029343U CN201449185U CN 201449185 U CN201449185 U CN 201449185U CN 2009200293435 U CN2009200293435 U CN 2009200293435U CN 200920029343 U CN200920029343 U CN 200920029343U CN 201449185 U CN201449185 U CN 201449185U
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- carbon steel
- tube
- protective layer
- alloying
- heat exchanger
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Abstract
The utility model is a spiral baffle plate heat exchanger of aluminized carbon steel and aluminum, wherein a heat exchange tube bundle thereof is configured to be a carbon steel base material having a surface compounded with an alloy protective layer of aluminized aluminum and carbon steel in which delta is equal to 0.1-0.5 mm; and the alloy protective layer is integrated with the carbon steel base material. A tube plate thereof is a compound structure of a floating tube plate and a fixed tube plate; one end of the heat exchange tube bundle passing through baffle plates is positioned on the fixed tube plate, and the other end thereof is positioned on the floating tube plate; the spiral baffle plates thereof are in a sector shape, adjacent spiral baffle plates are in related joint alternately, and an approximate circle is formed by arcs of a plurality of baffle plates in one pitch on the cross section of the tube bundle alternately. By stable spiral flow, the heat exchanger improves the disadvantages of the traditional vertical arc plates such as triangle dead area behind the baffle plates due to transverse baffling, thereby being capable of increasing effective heat exchange areas and improving the effect of integral heat exchange. In addition, the alloy protective layer of aluminized aluminum and carbon steel can be compounded on the surface of the carbon steel on tube plate, spiral baffles, tension rod, spacer tube, end cover and housing, thereby having excellent anti-corrosion performance and long service life.
Description
Technical field
The utility model belongs to the shell-and-tube heat exchanger category, is specifically related to a kind of carbon steel tube spiral baffle heat exchanger.Be applicable to very reliable in the industries such as oil, chemical industry, boats and ships, metallurgy, naval vessels, electric power
Background technology
At present China's oil, chemical industry, etc. the cold exchange device used in the industry technological process be shell-and-tube heat exchanger in a large number.So it is occupied an leading position in the numerous kinds heat transmission equipment is because shell-and-tube heat exchanger is applicable to stringent process conditions such as various high temperature, high pressure, complex dielectrics.The shell-and-tube heat exchanger of now being on active service in device mostly is traditional vertical bow sheet heat exchanger greatly, and heat exchange efficiency is lower, falls and becomes the subject matter that the cold exchange device technological progress faces so improve heat exchange efficiency, the reduction pressure of equipment.
Simultaneously, development along with the China's oil chemical engineering industry, the needed equipment supporting with it and the specific (special) requirements of parts are also got more and more, corrosion resistance promptly is one of topmost specific (special) requirements of each petrochemical equipment, the shell-and-tube heat exchanger of the prior art heat exchanger tubes that adopt expensive high alloy resistant material to make more, and heat exchanger tube is one of critical piece in the heat transmission equipment, so not only the cost height of heat exchanger tube, machined difficulty are big, increase manufacturing, the use cost of equipment, also strengthened the cost of final products heat exchangers virtually.
The utility model content
Goal of the invention of the present utility model, it is generally on the low side to be to improve the shell side film heat transfer coefficient, influences the situation of entire equipment heat exchange efficiency, and we do spiral baffle heat exchanger test and research and development.Provide a kind of low cost of manufacture simultaneously, the carbon steel tube spiral baffle heat exchanger that corrosion resistance is good.
The utility model is implemented by the following technical programs: design a kind of carbon steel tube spiral baffle heat exchanger, and whole by heat-exchanging tube bundle, tube sheet, helical baffles, pull bar, distance sink tube, end cap and housing constitute; It is characterized in that:
The heat-exchanging tube bundle surface recombination that described heat-exchanging tube bundle is set to carbon steel base material has aluminium-carbon steel alloying protective layer altogether, alloying protective layer thickness δ=0.1～0.5mm altogether; Aluminium-carbon steel is total to the alloying protective layer and carbon steel base material is combined as a whole.
Described tube sheet is set to a floating tubesheet and the composite construction that fixed tube sheet constitutes; Heat-exchanging tube bundle passes deflection plate, and an end is positioned on the fixed tube sheet, and the other end is positioned on the floating tubesheet;
Described helical baffles is set to fan-shaped, adjacent helical baffles dislocation lap joint, and the arc of polylith deflection plate on the tube bank cross section that pitch is interior, dislocation constitutes sub-circular.
Be with distance sink tube on the described pull bar, pull bar passes deflection plate, and distance sink tube is arranged between corresponding two bafflings are pulled in the pitch.
Above-mentioned a kind of carbon steel tube spiral baffle heat exchanger is characterized in that the tube sheet of described carbon steel base material, helical baffles, and the surface of pull bar and distance sink tube is compounded with aluminium-carbon steel alloying protective layer altogether, altogether alloying protective layer thickness δ=0.1～0.5mm; Aluminium-carbon steel is total to the alloying protective layer and carbon steel base material is combined as a whole.
Above-mentioned a kind of carbon steel tube spiral baffle heat exchanger is characterized in that the end cap of described carbon steel base material and the inner surface of housing, is compounded with aluminium-carbon steel alloying protective layer altogether, altogether alloying protective layer thickness δ=0.1～0.5mm; Aluminium-carbon steel is total to the alloying protective layer and carbon steel base material is combined as a whole.
Compared with the prior art, the utility model has the advantages that:
1. the baffling passage in the spiral baffle heat exchanger shell side has been broken through the mobile formula of touching that cross-current is repeatedly turned back in traditional vertical bow plate baffled heat exchanger shell side, has therefore improved heat transfer, pressure drop, resistive connection dirt and the vibrating effect of heat exchanger significantly.
Spiral baffle heat exchanger becomes the repeatedly 180 degree cross-current type of flow of turning back of the vertical bow of tradition plate, has reduced the loss in head that window region fluid wide-angle is turned back, for medium improves that flow velocity provides may.Improve flow velocity and just improved the Re number, therefore can increase substantially film heat transfer coefficient.
Spiral baffle heat exchanger has improved the triangle dead band drawback that accounts for heat exchange area about 2/5ths behind the deflection plate that the stream of laterally turning back of traditional vertical bow plate causes in helical flow mode stably, and therefore can increase effective heat exchange area improves whole heat exchange effect.
2. heat-exchanging tube bundle is compounded with aluminium-carbon steel alloying protective layer altogether, further tube sheet, helical baffles, the surface of pull bar and distance sink tube all is compounded with aluminium-carbon steel alloying protective layer altogether, corrosion resistance and good, at 430 ℃, in the 6% hydrogen sulfide atmosphere, aluminium-carbon steel alloying protective layer equipment surface altogether generates stable pellumina, improves 2～3 times than 1Cr18Ni9Ti stainless steel decay resistance commonly used; At 350 ℃, in the 100% hydrogen sulfide atmosphere, good anti-corrosion is arranged also; When 200 ℃ and 400 ℃, improve 5～10 times than simple base material carbon steel high-temperature resistant epoxy alkanoic acid corrosive nature; Excellent anti-corrosion performance, long service life.
3. processing, good welding performance, the alfer protective layer of carbon steel base material surface recombination, smooth, fine and close, even, there is not the brittle zone, constantly do not split during bending; Welding can not influence alfer protective layer performance.
4. adopted on the carbon steel base material surface; process low-cost carbon steel tube alloy protecting layer; layer has and the same resistance to corrosion of expensive high alloy resistant material; but the manufacturing of heat exchanger tube and machined are realized easily; the cost of same units heat exchanger tube reduces significantly, thereby has reduced manufacturing, the use cost of equipment greatly.
Can be widely used in fixing, the occasion of various ways shell-and-tube heat exchanger such as floating head, multipass, shell, as efficient, inexpensive, the corrosion resistant regeneration product of carbon steel, steel alloy heat exchanger tube.
Description of drawings
Fig. 1 is an overall structure form schematic diagram of the present utility model;
Fig. 2 is from the local cross-sectional schematic of amplifying of the cross section of heat exchanger tube end;
Fig. 3 is that cross-sectional schematic is amplified in the part at A place among Fig. 1 (being with distance sink tube on the pull bar).
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further elaborated.
Among Fig. 1, the 1st, heat-exchanging tube bundle; The 2nd, fixed tube sheet; The 3rd, floating tubesheet; The 4th, helical baffles; The 5th, pull bar; The 6th, distance sink tube; The 7th, end cap; The 8th, housing.
Among Fig. 2,1-1 is the heat exchanger tube inner chamber; 1-2 is the carbon steel base material portion of heat exchanger tube; 9-1 is that the aluminium-carbon steel of heat exchanger tube inwall is total to the alloying protective layer; 9-2 is that the aluminium-carbon steel of heat exchanger tube outer wall is total to the alloying protective layer.
Among Fig. 3, the 6th, distance sink tube, the same Fig. 1 of all the other labels.
Make for example:
On the inside and outside surface of wall thickness 2～2.5mm carbon steel base material heat exchanger tube, adopt filled type pack aluminizing device to handle the alfer composite protection layer that obtains in the whole complete cladding in inside and outside surface of carbon steel base material; Smooth, fine and close, infiltration aluminium-carbon steel alloying protective layer altogether of spreading layer thickness δ=a 0.1～0.5mm equably; If processing, manufacturing, installation and ordinary carbon steel goods are basic identical. arts demand, also can be at tube sheet, helical baffles, pull bar, positions such as distance sink tube and end cap the surface altogether cemented alloy layer of aluminium-carbon steel is set.
No longer carry out mach parts after all aluminisings, all be suitable for composite cementation constructed of aluminium of the present utility model.
The assembly operation of all the other the same class of operation shell-and-tube heat exchangers gets final product.
Claims (3)
1. a carbon steel tube spiral baffle heat exchanger is whole by heat-exchanging tube bundle, tube sheet, and helical baffles, pull bar, distance sink tube, end cap and housing constitute; It is characterized in that:
The heat-exchanging tube bundle surface recombination that described heat-exchanging tube bundle is set to carbon steel base material has aluminium-carbon steel alloying protective layer altogether, alloying protective layer thickness δ=0.1～0.5mm altogether; Aluminium-carbon steel is total to the alloying protective layer and carbon steel base material is combined as a whole.
Described tube sheet is set to a floating tubesheet and the composite construction that fixed tube sheet constitutes; Heat-exchanging tube bundle passes deflection plate, and an end is positioned on the fixed tube sheet, and the other end is positioned on the floating tubesheet;
Described helical baffles is set to fan-shaped, adjacent helical baffles dislocation lap joint, and the arc of polylith deflection plate on the tube bank cross section that pitch is interior, dislocation constitutes sub-circular.
Be with distance sink tube on the described pull bar, pull bar passes deflection plate, and distance sink tube is arranged between corresponding two bafflings are pulled in the pitch.
2. according to the described a kind of carbon steel tube spiral baffle heat exchanger of claim 1, the tube sheet that it is characterized in that described carbon steel base material, helical baffles, the surface of pull bar and distance sink tube, be compounded with aluminium-carbon steel alloying protective layer altogether, altogether alloying protective layer thickness δ=0.1～0.5mm; Aluminium-carbon steel is total to the alloying protective layer and carbon steel base material is combined as a whole.
3. according to the described a kind of carbon steel tube spiral baffle heat exchanger of claim 1, it is characterized in that the end cap of described carbon steel base material and the inner surface of housing, be compounded with aluminium-carbon steel alloying protective layer altogether, altogether alloying protective layer thickness δ=0.1～0.5mm; Aluminium-carbon steel is total to the alloying protective layer and carbon steel base material is combined as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200293435U CN201449185U (en) | 2009-07-07 | 2009-07-07 | Spiral baffle plate heat exchanger of aluminized carbon steel and aluminum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200293435U CN201449185U (en) | 2009-07-07 | 2009-07-07 | Spiral baffle plate heat exchanger of aluminized carbon steel and aluminum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449185U true CN201449185U (en) | 2010-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200293435U Expired - Fee Related CN201449185U (en) | 2009-07-07 | 2009-07-07 | Spiral baffle plate heat exchanger of aluminized carbon steel and aluminum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305480A (en) * | 2011-07-14 | 2012-01-04 | 中国科学院电工研究所 | Thermocline solar thermal storage system with baffles |
| CN105300139A (en) * | 2015-06-10 | 2016-02-03 | 大连东方亿鹏设备制造有限公司 | Hypercritical oxidation sludge heat exchanger |
-
2009
- 2009-07-07 CN CN2009200293435U patent/CN201449185U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305480A (en) * | 2011-07-14 | 2012-01-04 | 中国科学院电工研究所 | Thermocline solar thermal storage system with baffles |
| CN105300139A (en) * | 2015-06-10 | 2016-02-03 | 大连东方亿鹏设备制造有限公司 | Hypercritical oxidation sludge 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: 20100505 Termination date: 20180707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |