CN201377784Y - Energy-saving preheater for boiler - Google Patents
Energy-saving preheater for boiler Download PDFInfo
- Publication number
- CN201377784Y CN201377784Y CN200920101645U CN200920101645U CN201377784Y CN 201377784 Y CN201377784 Y CN 201377784Y CN 200920101645 U CN200920101645 U CN 200920101645U CN 200920101645 U CN200920101645 U CN 200920101645U CN 201377784 Y CN201377784 Y CN 201377784Y
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- pipe
- boiler
- economizer bank
- stay pipe
- water
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Abstract
The utility model discloses an energy-saving preheater for a boiler, which comprises a shell body, an air inlet, a water outlet pipe, an air outlet, a water inlet pipe, a preheating pipe and a supporting pipe, wherein the air inlet and the water outlet pipe are arranged on the upper part of the shell body, the air outlet and the water inlet pipe are arranged on the lower part of the shell body, and the preheating pipe and the supporting pipe are arranged in the shell body; both ends of the preheating pipe and the supporting pipe are respectively communicated with the water inlet pipe and the water outlet pipe, and an inner cavity of the shell body is used as a smoke channel. Water with the temperature of 5 to 6 DEG C can be preheated through coal burning waste gas with the temperature of 600 to 700 DEG C by the utility model, the temperature of the water can exceed 90 DEG C, and then the water enters the boiler. Therefore, the temperature of the coal burning waste gas is reduced, coal consumption is decreased, energy sources are saved, air pollution is reduced, and energy saving and emission reduction are realized completely.
Description
Technical field
The utility model relates to a kind of energy-saving device of boiler, particularly a kind of coal-burning boiler energy-saving preheater.
Background technology
The heating surface of coal-fired boiler of using is long-pending little at present, lack the boiler feed water preheating device, therefore, usually 5～6 ℃ water need be burnt 100 ℃, and up to 600 ℃～700 ℃ fire coal tail gas do not add utilization and just is discharged in the air, so not only wasted heat energy, and strengthened coal consumption, aggravated air pollution.
The utility model content
The utility model technical issues that need to address provide a kind of boiler energy-saving preheater that makes full use of boiler exhaust gas, cold water is carried out preheating.
For addressing the above problem, technical solution adopted in the utility model is:
A kind of boiler energy-saving preheater, it is characterized in that: comprise housing, be arranged on the air inlet and the outlet pipe on housing top, the gas outlet that is arranged on lower housing portion and water inlet pipe and be arranged on housing interior economizer bank and stay pipe, the two ends of economizer bank and stay pipe communicate with water inlet pipe and outlet pipe respectively, economizer bank and stay pipe parallel interval are provided with, and the housing inner chamber is an exhaust gases passes.
Described air inlet is connected with boiler chimney with boiler exhaust gas respectively with the gas outlet.
Described economizer bank is coiled pipe or spiral element.
Described stay pipe is a straight tube.
The parallel alternate setting with stay pipe of described economizer bank, 2 or 3 preheating pipes in perhaps every interval are provided with 1 stay pipe.
It is 1～50 group that described economizer bank and stay pipe group are arranged side by side.
Adopt the beneficial effect that technique scheme produced to be: this is novel, and temperature reaches more than 90 ℃ with the fire coal tail gas preheating of 5～6 ℃ of cold water through 600 ℃～700 ℃, and then enters boiler.Reduced the temperature of tail gas like this, temperature drops to below 100 ℃; Reduced the consumption of coal, the 35%-45% that economizes on coal has reduced air pollution, from truly having realized energy-saving and emission-reduction.
Description of drawings
Fig. 1 is that the utility model master looks schematic diagram;
Fig. 2 is that schematic diagram is looked on the utility model left side;
Fig. 3 is that the utility model master looks generalized section;
Fig. 4 is the utility model A-A cross-sectional view.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Shown in Fig. 1,2,3,4, the utility model comprises housing 1, is arranged on the air inlet 5 and the outlet pipe 4 on housing top, the gas outlet 3 that is arranged on lower housing portion and water inlet pipe 2 and is arranged on housing interior economizer bank 6 and stay pipe 7, the two ends of economizer bank 6 and stay pipe 7 communicate with water inlet pipe 2 and outlet pipe 4 respectively, economizer bank 6 and support column 7 parallel alternate settings, the housing inner chamber is an exhaust gases passes 7.
For increasing the preheating area, economizer bank 6 is set to coiled pipe or is spiral element.
Stay pipe 7 is a straight tube, plays supporting and heat conducting effect.
Can be parallel during alternate the setting when economizer bank 6 and stay pipe 7, stay pipe has played support and conduction of heat well; When 2 or 3 economizer banks 6 were provided with 1 stay pipe 7 when every interval, not only stay pipe 7 had played supporting and conduction of heat, and economizer bank 6 numbers that are provided with in the same space increase, and the preheating area increases.
When economizer bank 6 and stay pipe 7 were set to 1 group, the two ends of economizer bank 6 and stay pipe 7 directly were connected with outlet pipe 4 with water inlet pipe 2, and the preheating area is less; When economizer bank 6 and stay pipe 7 were set to 50 groups, the preheating area increased to 50 times, and pre-heat effect is good, the cold water of same traffic, and preheat temperature improves, and stay pipe 7 forms support frames; When economizer bank 6 was set to 25 groups, the preheating area increased to 25 times, and pre-heat effect is good, and stay pipe 7 forms support frame.
Claims (6)
1, a kind of boiler energy-saving preheater, it is characterized in that: comprise housing, be arranged on the air inlet and the outlet pipe on housing top, the gas outlet that is arranged on lower housing portion and water inlet pipe and be arranged on housing interior economizer bank and stay pipe, the two ends of economizer bank and stay pipe communicate with water inlet pipe and outlet pipe respectively, economizer bank and stay pipe parallel interval are provided with, and the housing inner chamber is an exhaust gases passes.
2, boiler energy-saving preheater according to claim 1 is characterized in that described air inlet is connected with boiler chimney with boiler exhaust gas respectively with the gas outlet.
3, boiler energy-saving preheater according to claim 1 is characterized in that described economizer bank is coiled pipe or spiral element.
4, boiler energy-saving preheater according to claim 1 is characterized in that described stay pipe is a straight tube.
5, boiler energy-saving preheater according to claim 1 is characterized in that the parallel alternate setting with stay pipe of described economizer bank, and 2 or 3 preheating pipes in perhaps every interval are provided with 1 stay pipe.
6, boiler energy-saving preheater according to claim 1 is characterized in that it is 1～50 group that described economizer bank and stay pipe group are arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920101645U CN201377784Y (en) | 2009-02-25 | 2009-02-25 | Energy-saving preheater for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920101645U CN201377784Y (en) | 2009-02-25 | 2009-02-25 | Energy-saving preheater for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377784Y true CN201377784Y (en) | 2010-01-06 |
Family
ID=41517895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920101645U Expired - Fee Related CN201377784Y (en) | 2009-02-25 | 2009-02-25 | Energy-saving preheater for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377784Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113786921A (en) * | 2021-08-27 | 2021-12-14 | 中冶南方工程技术有限公司 | Blast furnace pulverized coal preheating system based on raw coal processing technology |
-
2009
- 2009-02-25 CN CN200920101645U patent/CN201377784Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113786921A (en) * | 2021-08-27 | 2021-12-14 | 中冶南方工程技术有限公司 | Blast furnace pulverized coal preheating system based on raw coal processing technology |
| CN113786921B (en) * | 2021-08-27 | 2023-02-24 | 中冶南方工程技术有限公司 | Blast furnace pulverized coal preheating system based on raw coal processing technology |
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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: 20100106 Termination date: 20140225 |