CN201138144Y - Low-temperature resistant air pre-heating apparatus - Google Patents
Low-temperature resistant air pre-heating apparatus Download PDFInfo
- Publication number
- CN201138144Y CN201138144Y CNU2007200148269U CN200720014826U CN201138144Y CN 201138144 Y CN201138144 Y CN 201138144Y CN U2007200148269 U CNU2007200148269 U CN U2007200148269U CN 200720014826 U CN200720014826 U CN 200720014826U CN 201138144 Y CN201138144 Y CN 201138144Y
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- pipe
- air
- heat
- shell
- air chamber
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Abstract
The utility model discloses a low temperature corrosion resistant air preheater, is mainly characterized in that a serpentuator heat exchanger is arranged between the heat pipe air preheater and the air chamber; the opening at the interior of the shell is connected with the front end of air chamber of the heat pipe air preheater; the opening at the exterior of the shell is connected with the air inlet pipe; a support plate is fixed inside the shell; a serpentuator group is arranged in the pylome in the support plate; the water inlet of each serpentuator of the serpentuator group extends outside the shell to be communicated with the water-mains. The utility model has simple structure and high thermal efficiency, the use is safe and reliable, and the service life is long; and the utility model reduces the amount of low-temperature corrosion resistant materials, reduces the cost, and the dirt is easily removed.
Description
Technical field:
The novel a kind of heat exchanger, particularly heat pipe-type heat exchanger of relating to of this reality.
Background technology:
At present, heat-pipe air preheater is widely used in the reheating furnace energy-saving equipment of industries such as oil, chemical industry and metallurgy, though heat-pipe air preheater has vertical and horizontal two kinds, but their primary structure is basic identical, be that the sagging plate that is fixed thereon is established at frame bobbin carriage assembly middle part, the heat pipe tube bank middle part of interior dress heat-transfer working medium is fixed on the through hole of this sagging plate, and a part is positioned at smoke-box, and another part is positioned at air chamber.The two ends of this heat pipe tube bank place respectively again on the end tube sheet, and this two ends tube sheet is separately fixed at again on the bobbin carriage plate of two chambers, establish the air ports pipe before and after the air chamber respectively, establish the smoke entrance pipe before and after the smoke-box respectively.Owing to generally all contain sulfur oxide and moisture in the flue gas medium, they can react and generate acid.When heat pipe metallic walls temperature was lower than flue gas acid dew point, flue gas will cause the corrosion of the sulfide opposite heat tube in the flue gas at the heat pipe surface sweating.In order to improve the resistance to corrosion of heat pipe, the someone designs and adopts low temperature resistant corrosion material to heat pipe, and its weak point is that difficulty of processing is big, the cost height; Also the someone designs the raising heat pipe and restrains surperficial wall temperature, promptly improves exhaust gas temperature, and its weak point is not only to waste energy but also increase environmental pollution.
Summary of the invention:
The purpose of this utility model is to provide that a kind of difficulty of processing is little, cost is low, the not only anti-cold end corrosion air preheater of energy-conservation but also environmental protection.The utility model mainly is to establish coupled coil heat exchanger between existing heat-pipe air preheater air intlet pipe and air chamber.This coil heat exchanger mainly includes housing, gripper shoe, coiled pipe group and Inlet and outlet water house steward.Its middle shell is a square tube, and side opening links to each other with the bobbin carriage plate of heat-pipe air preheater air chamber front end in it, and its outer openings links to each other with the air intlet pipe of heat-pipe air preheater.Being provided with two gripper shoes that are fixed thereon in housing, should the gripper shoe parallel with air-flow direction be orifice plate, and its through hole is built-in with the coiled pipe group, i.e. many coiled pipes arranged side by side.Every coiled pipe has many combs arranged side by side again, and they are interconnected to a basic pipe in a plane by the U-shaped ell at two ends, and an end of this pipe is a water inlet, and the other end is a delivery port.The water inlet of every coiled pipe of Guan Zuzhong all reaches outside the shell, is connected with water inlet manifold; The delivery port of same every coiled pipe of Guan Zuzhong also reaches outside the shell, is connected with outfall sewer.Establish the Inlet and outlet water house steward of the through hole that links to each other with each coiled pipe on the wall, be the short tube of end sealing, the water inlet manifold openend links to each other with the hot water water pipe that need cool off from petrochemical industry and metallurgy industry, by this water inlet manifold hot water is distributed to each coiled pipe; The outfall sewer openend links to each other with drainpipe, by this outfall sewer the backwater that each coiled pipe carries out after the heat exchange is compiled, and drains from drainpipe again.Preferably water inlet manifold is located near air intlet pipe one side.For improving heat exchange efficiency, be preferably in the coiled pipe outside and establish fin, to increase heat exchange area.
When cold air when the air intlet pipe enters coil heat exchanger, earlier with coiled pipe in hot water carry out exchange heat, after it is heated intensification, enter again in the heat-pipe air preheater, carry out heat exchange with flue gas.Because the heat-pipe air preheater temperature of inlet air improves, and then the tube wall temperature of heat pipe tube bank is improved, prevent that flue gas from heat pipe metal surface dewfall, causing the corrosion of the sulfide opposite heat tube in the flue gas.
The utility model compared with prior art has following advantage:
1, simple in structure, the thermal efficiency is high.
2, safe and reliable, long service life.
3, reduce the consumption of cold end corrosion material, reduced cost.
4, dirt easy-clear.
Description of drawings
Fig. 1 is that schematic diagram cuts open in the master office of looking of the utility model example 1.
Fig. 2 is that schematic diagram cuts open in the office of overlooking of the utility model example 1.
Fig. 3 is that schematic diagram cuts open in the master office of looking of the utility model example 2.
The specific embodiment:
In the schematic diagram of vertical anti-cold end corrosion air preheater illustrated in figures 1 and 2, the horizontal sagging plate 2 that is fixed thereon is established at frame bobbin carriage assembly 1 middle part, the vertical heat pipe of interior dress heat-transfer working medium peripheral hardware helical fin is restrained 3 middle parts and is fixed on the through hole of this sagging plate, the bottom is positioned at smoke-box 4, and top is positioned at air chamber 5.The two ends of this heat pipe tube bank place respectively again on the end tube sheet, and this two ends tube sheet is separately fixed at again on the bobbin carriage plate of two chambers.Establish air intlet pipe 6 and air outlet slit pipe 7 before and after the air chamber respectively, establish flue gas inlet tube 8 and outlet 9 before and after the smoke-box respectively.Establish coil heat exchanger between air intlet pipe and air chamber, side opening links to each other with heat-pipe air preheater air chamber front end in its housing 10, and the hull outside opening links to each other with the air intlet pipe.Be provided with the vertical gripper shoe 11 that is fixed thereon in housing, its through hole is built-in with the coiled pipe group 12 of peripheral hardware fin, and the water inlet manifold 13 that it is outer and vertical that the water inlet of every coiled pipe of this Guan Zuzhong all reaches shell is connected.This water inlet manifold is located near air intlet pipe one side, and the outfall sewer that it is outer and vertical that the delivery port of every coiled pipe of Guan Zuzhong also all reaches shell is connected 14.In the schematic diagram of horizontal anti-cold end corrosion air preheater shown in Figure 3, establish the vertical sagging plate that is fixed thereon in the frame bobbin carriage assembly, the heat pipe tube bank middle part of interior dress heat-transfer working medium peripheral hardware helical fin is fixed on the through hole of this sagging plate, right part is positioned at smoke-box, and left part is positioned at air chamber.The two ends of this heat pipe tube bank place respectively again on the end tube sheet, and this two ends tube sheet is separately fixed at again on the bobbin carriage plate of two chambers.Air chamber is established air intlet pipe and air outlet slit pipe up and down respectively, and smoke-box is established smoke outlet tube and inlet tube up and down respectively.Establish coil heat exchanger between air intlet pipe and air chamber, side opening links to each other with heat-pipe air preheater air chamber front end in its housing, and the hull outside opening links to each other with the air intlet pipe.Be provided with the vertical gripper shoe that is fixed thereon in housing, its through hole is built-in with the coiled pipe group of peripheral hardware fin, and the water inlet of every coiled pipe of this Guan Zuzhong all reaches outside the housing and is connected with the water inlet manifold of level.This water inlet manifold is located near air intlet pipe one side.The delivery port of every coiled pipe of Guan Zuzhong also all reaches outside the housing and is connected with the outfall sewer of level.
Claims (3)
1 one kinds of anti-cold end corrosion air preheaters, the sagging plate that is fixed thereon is established at its frame bobbin carriage assembly middle part, the heat pipe tube bank middle part of interior dress heat-transfer working medium is fixed on the through hole of this sagging plate, a part is positioned at smoke-box, another one is positioned at air chamber, the two ends of this heat pipe tube bank place respectively again on the end tube sheet, this two ends tube sheet is separately fixed at again on the bobbin carriage plate of two chambers, establish the air ports pipe before and after the air chamber respectively, establish the smoke entrance pipe before and after the smoke-box respectively, it is characterized in that: between air intlet pipe and air chamber, establish coil heat exchanger, side opening links to each other with heat-pipe air preheater air chamber front end in its housing, the hull outside opening links to each other with the air intlet pipe, in housing, be provided with the gripper shoe that is fixed thereon, its through hole is built-in with the coiled pipe group, and the water inlet of every coiled pipe of this Guan Zuzhong all reaches outside the shell and is connected with water inlet manifold, and the delivery port of every coiled pipe of Guan Zuzhong also all reaches outside the shell and is connected with outfall sewer.
2 anti-cold end corrosion air preheaters according to claim 1 is characterized in that: there is fin the coiled pipe outside.
3 anti-cold end corrosion air preheaters according to claim 1 and 2 is characterized in that: water inlet manifold is located near air intlet pipe one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200148269U CN201138144Y (en) | 2007-09-29 | 2007-09-29 | Low-temperature resistant air pre-heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200148269U CN201138144Y (en) | 2007-09-29 | 2007-09-29 | Low-temperature resistant air pre-heating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138144Y true CN201138144Y (en) | 2008-10-22 |
Family
ID=40038829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200148269U Expired - Fee Related CN201138144Y (en) | 2007-09-29 | 2007-09-29 | Low-temperature resistant air pre-heating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138144Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042622A (en) * | 2015-07-31 | 2015-11-11 | 北京建筑大学 | Air preheater based one air-water heat exchange |
-
2007
- 2007-09-29 CN CNU2007200148269U patent/CN201138144Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042622A (en) * | 2015-07-31 | 2015-11-11 | 北京建筑大学 | Air preheater based one air-water heat exchange |
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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: 20081022 Termination date: 20100929 |