CN201373388Y - Carbon element waste heat boiler with thermal storage island - Google Patents
Carbon element waste heat boiler with thermal storage island Download PDFInfo
- Publication number
- CN201373388Y CN201373388Y CN200920010030U CN200920010030U CN201373388Y CN 201373388 Y CN201373388 Y CN 201373388Y CN 200920010030 U CN200920010030 U CN 200920010030U CN 200920010030 U CN200920010030 U CN 200920010030U CN 201373388 Y CN201373388 Y CN 201373388Y
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- boiler
- waste heat
- carbon element
- convection bank
- drum
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Abstract
The utility model relates to an energy-saving environmental protection facility, in particular to a carbon element waste heat boiler with a thermal storage island. The utility model is characterized in that in the chamber of a D type arranged boiler, diaphragm type water cooling heating surfaces are arranged on both the left and the right sides of the boiler chamber, a fire-proof thermal storage island is arranged in the middle of the boiler chamber, an upper boiler drum and a lower boiler drum are arranged at the back part of the boiler chamber, a high temperature convection bank and a low temperature convection bank are arranged between the upper boiler drum and the lower boiler drum, economizers are arranged on the outlets of the convection banks, boiler walls are arranged on the periphery of the boiler, protecting sheets are arranged on the exterior of the boiler walls, and a superheater outlet header is arranged on the ceiling of the boiler. The carbon element waste heat boiler can reduce the flue gas temperature from 1000 degrees to the level lower than 200 degrees, thereby meeting the temperature requirement of the induced draft fan; the superheated steam produced during the heat-recovering can be used to drive the electric generating set to generate. The utility model not only can recover effectively the waste heat, but also meet the requirement of energy saving and emission reduction by purifying the exhaust gas.
Description
Technical field
The utility model relates to a kind of energy-conserving and environment-protective facility, particularly a kind of carbon element waste heat boiler with the accumulation of heat island.
Background technology
Carbon element is the main production raw material of electrode.The annual carbon element output of China is more than 2,600 ten thousand tons, more than 130 families of the above carbon element of China's medium-scale manufacturing enterprise, and manufacturer mainly is distributed in the area, southwest in Shandong Province.Carbon element production can produce 850-950 ℃ waste heat flue gas.Carbon element is produced when being social create beneficial result, also severe contamination human lives's environment.In China, the carbon element waste heat only reclaims with heat exchanger in a few family units in the northern territory of southwest in Shandong Province, and all the other all arrange into atmosphere.With original heat exchanger recovery waste heat, only can produce on the one hand hot water or saturated vapor and be used for civilianly, can not produce superheated steam generation, utilization rate is very low, and the boiler operatiopn effect is very bad.Smoke characteristic in view of the carbon element flue gas, cause the heat exchanger of operation now to expose a lot of problems: 1, heat exchanger heating surface area is arranged wretched insufficiency, causes the heat exchanger heat absorption capacity on the low side, and heat exchanger exhanst gas outlet temperature is still up to 500-600 ℃, utilization rate of waste heat is very low, causes energy waste.2, the structural configuration of heat exchanger is unreasonable, and space for maintenance is narrow and small, a lot of positions even do not reserve space for maintenance, the repair and maintenance difficulty.3, the heat exchanger steel construction does not have the thermal stress compensation means, and the easy burning cracking of the heating surface of heat exchanger causes heat exchanger to leak during the heat exchanger operation, and the wall construction of heat exchanger is unreasonable simultaneously, causes the heat exchanger radiation loss higher.
Summary of the invention
The utility model has overcome the defective of above-mentioned existence, and purpose provides a kind of carbon element waste heat boiler that can adapt to the band accumulation of heat island of carbon element production, and effectively recovery waste heat generating can purify flue gas again, satisfies current energy-saving and emission-reduction requirement.
The carbon element waste heat boiler content Description on the utility model band accumulation of heat island:
The carbon element waste heat boiler on the utility model band accumulation of heat island, be by the film-type water-cooling heating surface, the accumulation of heat island, superheat section, the high temperature section convection bank, the low temperature convection bank, lower drum, furnace wall, backplate, upper drum, super-heater exit case and economizer constitute, it is characterized in that: in the D type is arranged the burner hearth of boiler, the film-type water-cooling heating surface is arranged in the furnace chamber left and right sides, a fire-resistant accumulation of heat of furnace chamber intermediate arrangement island, upper drum and lower drum are arranged in the burner hearth rear portion, arrange high temperature convection bank and low temperature convection bank between upper drum and the lower drum, arrange economizer in the convection bank outlet, arrange furnace wall around the boiler, the disposed outside backplate of furnace wall, super-heater exit case is arranged on the boiler ceiling.
The carbon element waste heat boiler on the utility model band accumulation of heat island can drop to flue-gas temperature below 200 ℃ by 1000 ℃, satisfies the requirement of air-introduced machine to temperature; The superheated steam that waste heat recovery can also be produced drives the generating set generating.Effectively recovery waste heat can purify the requirement that flue gas satisfies energy-saving and emission-reduction again.
Description of drawings
Fig. 1 is the carbon element waste heat boiler structural representation on band accumulation of heat island
Fig. 2 is the carbon element waste heat boiler structure A-A cutaway view on band accumulation of heat island
Among the figure: the 1st, film-type water-cooling heating surface, the 2nd, fire-resistant accumulation of heat island, the 3rd, superheat section, the 4th, high temperature section convection bank, the 5th, low temperature convection bank, the 6th, lower drum, the 7th, furnace wall, the 8th, backplate, the 9th, upper drum, the 10th, super-heater exit case, the 11st, economizer.
The specific embodiment
A kind of carbon element waste heat boiler with the accumulation of heat island of the utility model is achieved in that to do below in conjunction with accompanying drawing and specifies.See Fig. 1, the carbon element waste heat boiler on a kind of accumulation of heat island, be to constitute by: film-type water-cooling heating surface 1, accumulation of heat island 2, superheat section 3, high temperature section convection bank 4, low temperature convection bank 5, lower drum 6, furnace wall 7, backplate 8, upper drum 9, super-heater exit case 10 and economizer 11, in the D type is arranged the burner hearth of boiler, film-type water-cooling heating surface 1 is arranged in the furnace chamber left and right sides, on a fire-resistant accumulation of heat of furnace chamber intermediate arrangement island 2.Upper drum 9 and lower drum 6 are arranged in the burner hearth rear portion, arrange high temperature convection bank 4 and low temperature convection bank 5 between upper drum 9 and the lower drum 6, arrange economizer 11 in the convection bank outlet.Arrange furnace wall 7 around the boiler, furnace wall 7 disposed outside backplates 8, super-heater exit case 11 is arranged on the boiler ceiling.
The carbon element exhaust-heat boiler flue gas flow process on band accumulation of heat island is: flue gas enters burner hearth from the boiler front side, after stream is scratched on accumulation of heat island 2 successively through superheater 3, high temperature section convection bank 4, low-temperature zone convection bank 5, after economizer 11 backs discharge.
The carbon element waste heat boiler carbonated drink flow process on band accumulation of heat island is: enter upper drum 9 after feedwater at first enters economizer 11 preheatings, get back to upper drum 9 again after carbonated drink is separated through low-temperature zone convection bank 5, high temperature section convection bank 4, it is overheated to enter superheat section 3 continuation, and last superheated steam is drawn by super-heater exit case 10.
Characteristics are as follows:
1, deploy thermal storage island in the burner hearth, the gases such as unburnt CO that are beneficial in the waste heat flue gas reach In time, burn, and reduces gas uncombusted chemical loss, improves boiler thermal output;
2, arrange thermal storage island in the burner hearth, can when the fluctuation of waste heat flue-gas temperature is big, regulate The flue-gas temperature fluctuating range guarantees that boiler parameter is relatively stable;
3, arrange thermal storage island in the burner hearth, can be also with the property that changes thermal storage island shape adjustment superheater Can, adapt to different operating mode and user;
4, D type arrangement makes the boiler compactness attractive in appearance, and cost is low;
5, the boiler heating surface area is enough, and waste heat can reclaim to greatest extent, satisfies the requirement of air-introduced machine to temperature simultaneously;
6, the each several part heating surface adopts along row and arranges, avoids dust stratification;
7, furnace wall structure reasonable in design reduces the boiler radiation loss, improves boiler efficiency.
Claims (1)
1, a kind of carbon element waste heat boiler with the accumulation of heat island, be by film-type water-cooling heating surface (1), accumulation of heat island (2), superheat section (3), high temperature section convection bank (4), low temperature convection bank (5), lower drum (6), furnace wall (7), backplate (8), upper drum (9), super-heater exit case (10) and economizer (11) constitute, it is characterized in that: in the D type is arranged the burner hearth of boiler, film-type water-cooling heating surface (1) is arranged in the furnace chamber left and right sides, a fire-resistant accumulation of heat of furnace chamber intermediate arrangement island (2), upper drum (9) and lower drum (6) are arranged in the burner hearth rear portion, arrange high temperature convection bank (4) and low temperature convection bank (5) between upper drum (9) and the lower drum (6), arrange economizer (11) in the convection bank outlet, arrange furnace wall (7) around the boiler, the disposed outside backplate (8) of furnace wall (7), super-heater exit case (11) is arranged on the boiler ceiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920010030U CN201373388Y (en) | 2009-01-06 | 2009-01-06 | Carbon element waste heat boiler with thermal storage island |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920010030U CN201373388Y (en) | 2009-01-06 | 2009-01-06 | Carbon element waste heat boiler with thermal storage island |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373388Y true CN201373388Y (en) | 2009-12-30 |
Family
ID=41499474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920010030U Expired - Lifetime CN201373388Y (en) | 2009-01-06 | 2009-01-06 | Carbon element waste heat boiler with thermal storage island |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373388Y (en) |
-
2009
- 2009-01-06 CN CN200920010030U patent/CN201373388Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091230 |