CN201621844U - Horizontal pipe frame forced circulation coal powder burning hot water boiler - Google Patents
Horizontal pipe frame forced circulation coal powder burning hot water boiler Download PDFInfo
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- CN201621844U CN201621844U CN2010201526079U CN201020152607U CN201621844U CN 201621844 U CN201621844 U CN 201621844U CN 2010201526079 U CN2010201526079 U CN 2010201526079U CN 201020152607 U CN201020152607 U CN 201020152607U CN 201621844 U CN201621844 U CN 201621844U
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Abstract
The utility model relates to a horizontal pipe frame forced circulation coal powder burning hot water boiler which uses coal powder as fuels and includes a left hearth and a right hearth, a burner, a flag pattern convection heating surface and a flame folding wall; the left heart, the right hearth, a front wall, a partition and a back wall all adopt a membrane type water cooling wall structure. In the utility model, the water cooling flame folding wall is arranged in the left hearth and the right hearth, and the compulsive water circulation way is adopted to lead the furnace to have compact structure, occupy small land and space, and be safe and reliable, thus having excellent economic performances under the premise of meeting the high effective burning of the coal powder.
Description
Technical field
The utility model relates to a kind of horizontal pipe-support type forced circulation coal dust firing hot-water boiler, belongs to the coal-burned industrial boiler field.
Background technology
Present known coal-burned industrial boiler mainly comprises grate firing boiler and fluidized-bed combustion boiler, and the small-sized pulverized-coal fired boiler (capacity that refers generally to below 29MW be the Industrial Boiler of fuel with the coal dust) that coal dust firing is applied to the Industrial Boiler field is arranged in recent years.
Wherein, grate firing boiler is meant that fuel (raw coal) at the boiler that grate (fire grate) upward burns, is also referred to as the grate stove.Fluidized-bed combustion boiler is to utilize air to carry out fluidisation after the raw coal fragmentation is become a certain size particle, makes coal produce motion of class pseudo boiling shape and burning in burner hearth, and fluidized-bed combustion boiler is also referred to as fluidized bed furnace.Grate firing boiler technology maturation, shortcoming are that efficiency of combustion is low, and be seriously polluted; The fluidized-bed combustion boiler efficiency of combustion is higher, but at present technology is ripe not enough, and is especially not too successful on the small-sized Industrial Boiler of application study, and flue gas after-treatment system complexity, and cost is higher.The pollutant emission of these two big class boilers all is difficult to satisfy big and medium-sized cities (one, two class areas) governance for reaching standard requirement under present condition.Therefore, the inaccurate coal-burning boiler that uses in urban district is all stipulated in domestic many big and medium-sized cities, only accurately uses fuel oil, gas fired-boiler, and fuel oil, gas fired-boiler be because fuel cost is several times as much as fire coal, and limited to by fuel source, is difficult to large tracts of land and promotes the use of.
Coal dust firing is one of high performance clean burning mode of the coal of generally acknowledging, and its efficiency of combustion can reach more than 95% usually, is that other combustion system institute is unapproachable.Pulverized coal combustion also is the combustion technology of a maturation, on large-sized station boiler, use quite general, and long-term history arranged, just because the limitation of economic development and science and technology, be subjected to cost height, uncontrollable atmosphere pollution initial ejection concentration and pollute the restriction of aspects such as the thing discharging is serious, make this clean burning technology on small-sized industrial boiler, not obtain good application for a long time.In order on miniature boiler, to use pulverized coal combustion, realize low energy consumption, low emission, researched and developed horizontal pulverized-coal fired boiler in recent years.The burner hearth of horizontal pulverized-coal fired boiler adopts horizontal layout, for the vertical furnace chamber of the employing of generating plant pulverized coal boiler, reduced the manufacturing cost of boiler body and the investment that the boiler room is built significantly, thereby created advantage for applying of small-sized efficient pulverized-coal fired boiler.But still there is system complex in pulverized coal firing boiler than the right boiler of traditional layer, and corollary equipment is more, cost high shortcoming.
Summary of the invention
The purpose of this utility model is in order to address the above problem, a kind of horizontal pipe-support type forced circulation coal dust hot-water boiler is proposed, adopt horizontal twin furnace to add the arrangement form and the pressure water endless form of flag formula convection heating surface, satisfying under the prerequisite of boiler performance, greatly reduce the height and the steel consumption of boiler, reduced boiler manufacturing cost and boiler room manufacturing cost.
A kind of horizontal pipe-support type forced circulation coal dust firing hot-water boiler is characterized in that, comprises left hearth, right bearth, burner, foldede flame wall and flag formula convection heating surface;
Left hearth and right bearth are horizontal type structure, be arranged in the left and right sides, boiler front, left hearth and right bearth front end are provided with burner respectively, left hearth and right bearth rear end are respectively equipped with furnace outlet, left hearth and right bearth middle part are respectively equipped with foldede flame wall, coal dust by burner spray into left hearth, right bearth burns, small part slag after the burning is discharged through the slag bucket below left hearth and the right bearth, major part enters flag formula convection heating surface with flue gas by furnace outlet with the flying dust form, discharges boiler then.
Advantage of the present utility model is:
The utility model is provided with the water-cooled foldede flame wall, adopts flag formula convection heating surface, adopts and force the water endless form in left hearth and right bearth, make the boiler structure compactness, take up an area of, the duty area is little, safe and reliable, on the basis of satisfying the coal dust efficient burning, greatly reduce the height and the steel consumption of boiler, reduce boiler manufacturing cost and boiler room manufacturing cost, had good and economic.Left hearth, right bearth, front wall, partition wall and back wall all adopt film water cold wall structure, make the interior sealing of boiler good, and can adopt light boiler setting, have also reduced the appearance and size of boiler simultaneously.
Description of drawings
Fig. 1 is the horizontal pipe-support type forced circulation of a utility model coal dust firing hot-water boiler side view;
Fig. 2 cuts open figure structure schematic representation for horizontal pipe-support type forced circulation coal dust firing hot-water boiler burner hearth of the present utility model.
Among the figure:
1-left hearth 2-right bearth 3-burner 4-foldede flame wall
5-flag formula convection heating surface 6-furnace outlet 7-front wall 8-partition wall
Wall 10-slag bucket behind the 9-
Second backhaul of the 501-flag formula convection heating surface first backhaul 502-flag formula convection heating surface
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Horizontal pipe-support type forced circulation coal dust firing hot-water boiler of the present utility model, side-looking such as Fig. 1, section on the architecture basics of existing coal-powder boiler, comprise left hearth 1, right bearth 2, burner 3, foldede flame wall 4, flag formula convection heating surface 5 as shown in Figure 2.
Described flag formula convection heating surface 5 comprises first backhaul 501 of flag formula convection heating surface and second backhaul 502 of flag formula convection heating surface, first backhaul 501 of flag formula convection heating surface is between front wall 7 and partition wall 8, second backhaul 502 of flag formula convection heating surface is between partition wall 8 and back wall 9, first backhaul 501 of flag formula convection heating surface and flag formula convection heating surface second backhaul 502 upper ends are not communicated with, the lower end is communicated with, front wall 7 is communicated with furnace outlet 6, flue gas enters by furnace outlet 6, wash away first backhaul 501 of flag formula convection heating surface downwards, turn afterwards 180 ° and upwards wash away second backhaul 502 of flag formula convection heating surface, boiler is discharged in the combustion back from both sides, flag formula convection heating surface second backhaul, 502 top.
Film water cold wall structure is adopted in described foldede flame wall 4 upper ends, and the light pipe of lower end is had loose bowels becomes exhaust gases passes, makes flue gas to pass through from foldede flame wall 4.
Described left hearth 1, right bearth 2, front wall 7, partition wall 8 and back wall 9 all adopt film water cold wall structure, make that so the interior sealing of boiler is good, and can adopt light boiler setting, have also reduced the appearance and size of boiler simultaneously.
The forced circulation mode is adopted in the water circulation of boiler described in the utility model, adopts the hot-water boiler of pipe-support type boiler body forced circulation mode, has saved the bigger drum of volume, effectively reduces the steel consumption of boiler.
Hot-water boiler of the present utility model is fuel with the coal dust, and the coal dust firing controllability is strong, and boiler start-stop facility does not have thermal inertia, is adapted to the above coal dust firing hot-water boiler of 14MW.
The compact conformation of boiler described in the utility model, rationally, steel consumption reduces significantly than vertical furnace chamber boiler, and the boiler body height reduces (reducing by 1/2～2/3) significantly simultaneously, has reduced the cost and the boiler room one-time investment of pulverized-coal fired boiler effectively.
Claims (6)
1. a horizontal pipe-support type forced circulation coal dust firing hot-water boiler is characterized in that, comprises left hearth, right bearth, burner, foldede flame wall and flag formula convection heating surface;
Left hearth and right bearth are horizontal type structure, be arranged in the left and right sides, boiler front, left hearth and right bearth front end are provided with burner respectively, left hearth and right bearth rear end are respectively equipped with furnace outlet, left hearth and right bearth middle part are respectively equipped with foldede flame wall, coal dust by burner spray into left hearth, right bearth burns, small part slag after the burning is discharged through the slag bucket below left hearth and the right bearth, major part enters flag formula convection heating surface with flue gas by furnace outlet with the flying dust form, discharges boiler then.
2. horizontal pipe-support type forced circulation coal dust firing hot-water boiler according to claim 1 and 2 is characterized in that, described left hearth, right bearth, front wall, partition wall and back wall all adopt film water cold wall structure.
3. horizontal pipe-support type forced circulation coal dust firing hot-water boiler according to claim 1 is characterized in that, the forced circulation mode is adopted in the water circulation of boiler.
4. horizontal pipe-support type forced circulation coal dust firing hot-water boiler according to claim 1 is characterized in that left hearth and right bearth front end are provided with two burners respectively.
5. horizontal pipe-support type forced circulation coal dust firing hot-water boiler according to claim 1 is characterized in that, film water cold wall structure is adopted in described foldede flame wall upper end, and the light pipe of lower end is had loose bowels becomes exhaust gases passes, makes flue gas to pass through from foldede flame wall.
6. horizontal pipe-support type forced circulation coal dust firing hot-water boiler according to claim 1, it is characterized in that, described flag formula convection heating surface comprises first backhaul of flag formula convection heating surface and second backhaul of flag formula convection heating surface, first backhaul of flag formula convection heating surface is between front wall and partition wall, second backhaul of flag formula convection heating surface is between partition wall and back wall, first backhaul of flag formula convection heating surface and flag formula convection heating surface second backhaul upper end are not communicated with, the lower end is communicated with, front wall is communicated with furnace outlet, flue gas enters by furnace outlet, wash away first backhaul of flag formula convection heating surface downwards, turn afterwards 180 ° and upwards wash away second backhaul of flag formula convection heating surface, boiler is discharged in the combustion back from both sides, the flag formula convection heating surface second backhaul top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201526079U CN201621844U (en) | 2010-04-06 | 2010-04-06 | Horizontal pipe frame forced circulation coal powder burning hot water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201526079U CN201621844U (en) | 2010-04-06 | 2010-04-06 | Horizontal pipe frame forced circulation coal powder burning hot water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621844U true CN201621844U (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201526079U Expired - Fee Related CN201621844U (en) | 2010-04-06 | 2010-04-06 | Horizontal pipe frame forced circulation coal powder burning hot water boiler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901213A (en) * | 2012-10-31 | 2013-01-30 | 山西蓝天环保设备有限公司 | Superfine pulverized-coal combustion hot water boiler |
| CN109210779A (en) * | 2018-10-11 | 2019-01-15 | 营口绿源锅炉有限责任公司 | A kind of large capacity horizontal water pipe burner hearth fire tube convection heating surface room-fired boiler |
| CN109210792A (en) * | 2018-10-11 | 2019-01-15 | 营口绿源锅炉有限责任公司 | A kind of integrated room combustion hot-water boiler of horizontal condensation |
-
2010
- 2010-04-06 CN CN2010201526079U patent/CN201621844U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901213A (en) * | 2012-10-31 | 2013-01-30 | 山西蓝天环保设备有限公司 | Superfine pulverized-coal combustion hot water boiler |
| CN109210779A (en) * | 2018-10-11 | 2019-01-15 | 营口绿源锅炉有限责任公司 | A kind of large capacity horizontal water pipe burner hearth fire tube convection heating surface room-fired boiler |
| CN109210792A (en) * | 2018-10-11 | 2019-01-15 | 营口绿源锅炉有限责任公司 | A kind of integrated room combustion hot-water boiler of horizontal condensation |
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| 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: 20101103 Termination date: 20150406 |
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| EXPY | Termination of patent right or utility model |