CN201237209Y - Single-cycle energy-saving combustion chain boiler - Google Patents
Single-cycle energy-saving combustion chain boiler Download PDFInfo
- Publication number
- CN201237209Y CN201237209Y CNU2008200295671U CN200820029567U CN201237209Y CN 201237209 Y CN201237209 Y CN 201237209Y CN U2008200295671 U CNU2008200295671 U CN U2008200295671U CN 200820029567 U CN200820029567 U CN 200820029567U CN 201237209 Y CN201237209 Y CN 201237209Y
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- slag
- heat exchange
- heat
- box body
- chain
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Abstract
The utility model relates to a single cycle energy-saving combustion chain-grate boiler. A heat-exchange box body is arranged on a bracket on the side surface of a chain-grate boiler; an insulating layer is installed between an inner heat-exchange partition board arranged inside the heat-exchange box body and the heat-exchange box body; an upper man hole is formed on the upper end surface of the heat-exchange box body, and a lower man hole is formed on the lower side surface thereof; a slag cooler and a screen are arranged on the heat-exchange partition board of the heat-exchange box body; a slag delivery pipe communicated with a slag remover and an air blower, and a hot air pipe communicated with a slag receiving box are arranged on the upper end surface of the heat-exchange box body; a slag cooler water inlet pipe and a slag cooler water outlet pipe communicated with the slag cooler are arranged on the side wall of the heat-exchange box body; a hearth slag delivery pipe and a waste slag discharge pipe which are communicated with each other inside the heat-exchange box body are arranged at the lower end of the heat-exchange box body. The utility model has the advantages of reasonable design, simple structure, simple and convenient operation, high automation degree, high heat efficiency, significant energy saving effect, etc. The utility model can be applied to chain-grate boilers.
Description
Technical field
The utility model belongs to the boiler technology field, is specifically related to chain-grate boiler.
Background technology
Industrial boilers in China is used grate furnace mostly, and grate furnace comprises fixedly grate stove, chain-grate boiler and spreader stoker chain boiler.And chain-grate boiler is that current application is the widest, more perfect mechanization grate furnace on the structure, and the domestic boilers that capacity is 4～65t/h that are used for abroad also have and adopt chain furnace on the boiler of 100t/h more.The chain-grate boiler efficiency of combustion is low, and in the boiler slag removal process, 700 ℃ of left and right sides high temperature furnace slags are drained into the scraper plate slag remover through Martin's slag remover, enter the slag storehouse and drain after water cooling.So not only wasted high temperature heat, and mechanical imperfect combustion heat loss is up to about 7%～15%, the uncombusted composition is more, and the thermal efficiency of boiler is lower, and the boiler BTHE can only maintain about 65%～72%.
In recent years, recently the Small and Medium Circulating Fluidized Bed Boiler that manufactures and designs, its thermal efficiency can reach more than 87%, the main cause that the thermal efficiency improves is to have increased returning charge, and so-called returning charge is exactly that flying dust with unburnt larger particles in the furnace outlet high-temperature flue gas returns the flying dust that rekindles into burner hearth, has reduced unburned carbon loss, improved the thermal efficiency of boiler, the returning charge amount is big more, and boiler efficiency is high more, has designed the secondary returning charge again on a returning charge basis.
The thermal efficiency that improves chain-grate boiler is the current technical problem that presses for solution in boiler technology field.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of above-mentioned chain-grate boiler, and a kind of reasonable in design, simple in structure, easy and simple to handle, automaticity is high, the thermal efficiency is high single cycle energy-saving combustion chain-grate boiler is provided.
Solving the problems of the technologies described above the technical scheme that is adopted is: the support of chain-grate boiler side is provided with the heat exchange casing, be arranged between interior heat exchange internal partition of heat exchange casing and the heat exchange casing heat-insulation layer is installed, the upper surface of heat exchange casing is provided with manhole, downside is provided with down manhole, the heat exchange internal partition of heat exchange casing is provided with slag cooler and screen cloth, heat exchange casing upper surface is provided with Martin's slag remover and air blast link and send the slag pipe, the warm-air pipe that links with slag recovering box, the sidewall of heat exchange casing is provided with slag cooler outlet pipe and the slag cooler water inlet pipe that links with slag cooler, and the lower end of heat exchange casing is provided with the burner hearth that links in the heat exchange casing and send slag pipe and waste residue scum pipe.
The tabular casing that is shaped as S shape pipe or mutual UNICOM of slag cooler of the present utility model.
The cone that is shaped as that is shaped as cone, right side in the left side, lower end of heat exchange casing of the present utility model.
Being shaped as of the vertical section of slag recovering box of the present utility model is trapezoidal.
The utility model has adopted and screen cloth has been set in the heat exchange casing broken little slag is filtered, entering scum pipe after slag cooler heat exchange cooling discharges, the unburnt slag of bulky grain is sent into burner hearth and is carried out second-time burning after the slag cooler cooling, slag after the burning is sent in the heat exchange casing by air blast again, circulating combustion repeatedly, improved burn-off rate, reduced mechanical imperfect combustion heat loss, can make mechanical imperfect combustion heat loss reduce to 2%～6% by 7%～15%.Slag cooler can be reduced to 700 ℃ of left and right sides high temperature furnace slags about 100 ℃, cold water in the slag cooler becomes hot water as boiler feedwater after heat exchange, directly heat energy is brought into boiler, air blast is sent into air and is carried out heat exchange in the heat exchange casing and become high temperature air and send in the burner hearth, for sufficient oxygen is provided in the burner hearth, reduced the heat loss due to incomplete combustion, make full use of effective heat energy, improve the thermal efficiency of boiler, make the BTHE of boiler reach 75%～82%.The utlity model has advantages such as reasonable in design, simple in structure, easy and simple to handle, that automaticity is high, the thermal efficiency is high, energy-saving effect is remarkable, can on chain-grate boiler, promote the use of.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described, but the utility model is not limited to these embodiment.
In Fig. 1, the single cycle energy-saving combustion chain-grate boiler of present embodiment by chain-grate boiler 1, warm-air pipe 2, slag cooler outlet pipe 3, slag cooler water inlet pipe 4, heat exchange casing 5, heat-insulation layer 6, go up manhole 7, send slag pipe 8, slag cooler 9, heat exchange internal partition 10, screen cloth 11, manhole 12, waste residue scum pipe 13, burner hearth send slag pipe 14, slag recovering box 15, support 16, Martin's slag remover 17, air blast 18 to connect to constitute down.
On the support 16 of chain-grate boiler 1 side,, heat exchange internal partition 10 is installed in the heat exchange casing 5, between heat exchange internal partition 10 and the heat exchange casing 5 heat-insulation layer 6 is installed with the screw threads for fastening connector heat exchange casing 5 that has been fixedly connected.Welding is connected with manhole 7 on the upper surface of heat exchange casing 5, and welding is connected with down manhole 12 on the downside of heat exchange casing 5, and last manhole 7 and following manhole 12 are used for operating personnel and enter heat exchange casing 5 interior heat exchanging casings 5 interior parts and overhaul.Welding is connected with slag cooler 9 and screen cloth 11 on the heat exchange internal partition 10 in heat exchange casing 5, and the S shape that is shaped as of slag cooler 9 is managed, and screen cloth 11 tilts with the upper surface of heat exchange casing 5.Right side, the upper surface welding of heat exchange casing 5 is connected with send slag pipe 8, send in the upper end of slag pipe 8 and the heat exchange casing 5 link, lower end and Martin's slag remover 17 and air blast 18 link, it is that high temperature furnace slag about 700 ℃ blows in the heat exchange casing 5 through sending slag pipe 8 that air blast 18 is discharged to temperature in Martin's slag remover 17 with chain-grate boiler 1.Left side, the upper surface welding of heat exchange casing 5 is connected with warm-air pipe 2, link in one end of warm-air pipe 2 and the heat exchange casing 5, link in the other end and the slag recovering box 15, be equipped with on heat exchange casing 5 left sides slag cooler water inlet pipe 4 is installed under slag cooler outlet pipe 3, the left side, slag cooler outlet pipe 3, slag cooler water inlet pipe 4 link with slag cooler 9, cold water enters from slag cooler water inlet pipe 4 and flows to slag cooler 9, flow out from slag cooler outlet pipe 3 through slag cooler 9, by slag cooler 9, carry out heat exchange and become hot water as boiler feedwater.The cone that is shaped as that is shaped as cone, right side in the left side, lower end of heat exchange casing 5, left side, the lower end welding of heat exchange casing 5 is connected with burner hearth and send slag pipe 14, burner hearth send in the lower end of the upper end of slag pipe 14 and heat exchange casing 5 and links, link in lower end and the slag recovering box 15, being shaped as of the vertical section of slag recovering box 15 is trapezoidal, links in the burner hearth of the lower end of slag recovering box 15 by pipeline and chain-grate boiler 1.Right side, the lower end welding of heat exchange casing 5 is connected with waste residue scum pipe 13, links in waste residue scum pipe 13 and the heat exchange casing 5.In heat exchange casing 5, temperature is the high temperature furnace slag about 700 ℃, and a part of heat is passed to air in the heat exchange casing 5, and heated hot-air enters in the burner hearth of chain-grate boiler 1 by warm-air pipe 2, the slag recovering box 15 of flowing through; High temperature furnace slag about 700 ℃, the cold water of another part heat being passed to the slag cooler 9 of flowing through heats cold water, and heated hot water is sent into the feed-tank of chain-grate boiler 1.The slag that enters in the heat exchange casing 5 sieves through screen cloth 11, ashes after sieving are discharged from waste residue scum pipe 13, the slag that contains coke burns in the burner hearth that burner hearth send slag pipe 14, slag recovering box 15 to flow into chain-grate boiler 1 again, circulating combustion repeatedly will be till will being contained in coke in the slag and all burning down into ashes and discharge.The single cycle energy-saving combustion chain-grate boiler of this structure, because heat energy is fully used, the thermal efficiency can reach 75%～80%.
In the present embodiment, the tabular casing that is shaped as mutual UNICOM of slag cooler 9.The connecting relation of other parts and parts is identical with embodiment 1.
Claims (4)
1, a kind of single cycle energy-saving combustion chain-grate boiler, it is characterized in that: the support (16) of chain-grate boiler (1) side is provided with heat exchange casing (5), be arranged between interior heat exchange internal partition (10) of heat exchange casing (5) and the heat exchange casing (5) heat-insulation layer (6) is installed, the upper surface of heat exchange casing (5) is provided with manhole (7), downside is provided with down manhole (12), the heat exchange internal partition (10) of heat exchange casing (5) is provided with slag cooler (9) and screen cloth (11), heat exchange casing (5) upper surface is provided with Martin's slag remover (17) and air blast (18) link and send slag pipe (8), the warm-air pipe (2) that links with slag recovering box (15), the sidewall of heat exchange casing (5) is provided with slag cooler outlet pipe (3) and the slag cooler water inlet pipe (4) that links with slag cooler (9), and the lower end of heat exchange casing (5) is provided with the burner hearth that links in the heat exchange casing (5) and send slag pipe (14) and waste residue scum pipe (13).
2, according to the described single cycle energy-saving combustion of claim 1 chain-grate boiler, it is characterized in that: the tabular casing that is shaped as S shape pipe or mutual UNICOM of said slag cooler (9).
3, according to the described single cycle energy-saving combustion of claim 1 chain-grate boiler, it is characterized in that: the cone that is shaped as that is shaped as cone, right side in the left side, lower end of said heat exchange casing (5).
4, according to the described single cycle energy-saving combustion of claim 1 chain-grate boiler, it is characterized in that: being shaped as of the vertical section of said slag recovering box (15) is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200295671U CN201237209Y (en) | 2008-07-07 | 2008-07-07 | Single-cycle energy-saving combustion chain boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200295671U CN201237209Y (en) | 2008-07-07 | 2008-07-07 | Single-cycle energy-saving combustion chain boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201237209Y true CN201237209Y (en) | 2009-05-13 |
Family
ID=40649940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200295671U Expired - Fee Related CN201237209Y (en) | 2008-07-07 | 2008-07-07 | Single-cycle energy-saving combustion chain boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201237209Y (en) |
-
2008
- 2008-07-07 CN CNU2008200295671U patent/CN201237209Y/en not_active Expired - Fee Related
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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: 20090513 Termination date: 20100707 |