CN2636084Y - Double-grate vertical counter-combustion boiler - Google Patents
Double-grate vertical counter-combustion boiler Download PDFInfo
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- CN2636084Y CN2636084Y CN 03259735 CN03259735U CN2636084Y CN 2636084 Y CN2636084 Y CN 2636084Y CN 03259735 CN03259735 CN 03259735 CN 03259735 U CN03259735 U CN 03259735U CN 2636084 Y CN2636084 Y CN 2636084Y
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 239000003245 coal Substances 0.000 claims abstract description 43
- 239000002893 slag Substances 0.000 claims abstract description 7
- 239000000779 smoke Substances 0.000 claims description 25
- 210000000481 breast Anatomy 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008021 deposition Effects 0.000 abstract 1
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 238000010304 firing Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009102 absorption Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
A dual-grate vertical reverse firing boiler is provided, which comprises a water jacket structure composed of an inner shell [4] and an outer shell [1]. A seal cavity formed by the inner shell [4] and the outer shell [1] is a hot water cavity [3]. The inner cavity of the inner shell [4] is a furnace hearth. A water pipe [5] communicated with the hot water cavity [3] is arranged in the upper space of the furnace hearth and the top of the furnace hearth is provided with a cupola pipe [2]. The utility model is characterized in that: a combustion chamber is separated at the lower section of the furnace hearth and is divided by upper and lower furnace grates into upper, middle and lower areas communicated with each other; wherein, the upper area is a coal filling cavity [11] with a coal filling mouth and a furnace gate [12] on one side; the middle area acts as a high temperature flame combustion cavity [14] enclosed by a fire resistance layer [21] around and provided with a coal filling mouth and a furnace gate [15] on one side and a flame outlet on anther side; the lower area is defined as a slag deposition cavity with a slag elimination mouth and a furnace gate [17] arranged on one side. By adopting the double grates structure, the utility model further enhances the performance and the efficiency of the boiler and lowers the pollution to environment when the boiler operates.
Description
Technical field
The utility model relates to a kind of vertical fire coal steam boiler, particularly to the coal chamber in this class boiler construction and the improvement of combustion chamber.
Background technology
The application of vertical fire coal boiler in industry and people's daily life is very general.In the prior art, this boiler body constitutes the water leg structure by inner bag and outer courage, and the inner chamber of inner bag is pyrotechnics chamber (burner hearth), and outer courage and inner bag shell surround the annular seal space of (comprising the water pipe that runs through inside of boiler) for adding hot-water cavity.The pyrotechnics top of chamber is provided with flue, and this flue is upward through from the inner bag top and adds the hot-water cavity upper chamber and stretched out outside the stove by outer courage shell top.The coal-fired high temperature pyrotechnics that produces transmits heat in the mode of radiation and convection current to adding hot-water cavity by pyrotechnics chamber-heat-exchanging chamber during boiler operatiopn, and the pyrotechnics air-flow rises and outwards discharges by the boiler impact tube simultaneously.Only establish a fire grate in the burner hearth of traditional vertical coal-fired steam boiler, fire coal is added on the fire grate and burns, and the flame forward is seen shown in the accompanying drawing 1 up, although this structure is simple in structure, easily manufactured, but have the following disadvantages in the practice: 1, owing to the unidirectional forward combustion of flame, when disclosing fire grate in the firepower deficiency, many not burning out small-particle coals leak to the slag thorax by the fire grate gap, it is unclean to cause boiler fired coal to burn, and so not only coal consumption is big, and has wasted valuable coal resource.2, because a large amount of heat absorptions of furnace wall cause the temperature of boiler flame combustion zone not high, the higher ature of coal ash of many burning-points in the flue dust can't fully be burnt, thereby the blackness of exhaustion that boiler is discharged is big, dust is many, major polluting atmosphere environment.In a word, the boiler coal consumption of this structure is big, and the thermal efficiency is low, and is seriously polluted.
Summary of the invention
The utility model purpose is by improving coal chamber and the chamber structure in the conventional boiler structure, a kind of sufficient combustion is provided, pollutes for a short time, and the high double grate vertical counter-burning boiler of energy utilization rate is to overcome above-mentioned deficiency.
For achieving the above object, the technical solution adopted in the utility model is: a kind of double grate vertical counter-burning boiler, constitute the water leg structure by inner casing and shell, the annular seal space that inner casing and shell form is a hot-water cavity, the inner chamber of inner casing is a burner hearth, be laid with the water pipe that is communicated with hot-water cavity in the upper furnace space, roof of the furnace is provided with impact tube, its innovation is: lower furnace portion is separated out a combustion chamber, this combustion chamber is separated into the district of three connections in upper, middle and lower with upper and lower two groups of fire grates, wherein, last district is the coal chamber, and the one side is provided with coal filling hole and fire door; Middle district is the high-temperature flame chamber, is surrounded by the insulating refractory layer around it, and high-temperature flame chamber one side is provided with coal filling hole and fire door, and opposite side is provided with the flame export that is communicated with burner hearth; Inferior segment is a slag accumulated chamber, and the one side is provided with breast hole and fire door.
Related content and change interpretation in the technique scheme are as follows:
1, in the such scheme, relevant combustion chamber have two kinds every the form of establishing, first kind is built-in entirely, second kind is half built-in.
So-called complete built-in combustion chamber is seen shown in Figure 2ly, and its structure is: the combustion chamber is every in lower furnace portion one side, and opposite side leaves the space, and the combustion chamber communicates with the upper furnace space through this space by the set flame export of high-temperature flame chamber side direction.
So-called half built-in combustion chamber is seen shown in Figure 3ly, and its structure is: the combustion chamber is every the lower semisection at burner hearth, and boiler is provided with the side smoke box outward, and this side smoke box is communicated with the combustion chamber with the upper furnace space.
2, in complete built-in combustion chamber structure, in order to improve heat exchanger effectiveness, upper fire-grating can be water pipe furnace grate, this water pipe furnace grate runs through inner casing by thick horizontal water tube two ends and communicates with hot-water cavity, some thin conduit parallel interval are provided with formation, one end of thin conduit communicates with thick horizontal water tube one side, and the other end runs through inner casing and communicates with hot-water cavity.
In addition, coal top of chamber and sidepiece are formed by " " type smoke baffle plate, should be embedded with some water pipes as iliacus in " " type smoke baffle plate, and water pipe communicates with hot-water cavity.
For the ease of clear dirt deashing, end face one side in combustion chamber is provided with dedust port and fire door, and other furnace cavity bottom one side in combustion chamber is provided with down shoot door.
3, in half built-in combustion chamber structure, in order to improve heat exchanger effectiveness, upper fire-grating is a water pipe furnace grate, and this water pipe furnace grate is provided with by some thin conduit parallel interval and forms, one end of thin conduit runs through inner casing one side and communicates with hot-water cavity, and the other end runs through the inner casing opposite side and communicates with hot-water cavity.
In addition, be provided with curved water pipe in the side smoke box, this curved water pipe is communicated with hot-water cavity.
For the ease of clear dirt deashing, end face one side in combustion chamber is provided with dedust port and fire door, and side smoke box bottom one side is provided with down shoot door.
The utility model operation principle is: fire coal mainly is added on the upper fire-grating from the upper coal feeding mouth and (also can be added on the lower fire grating from following coal filling hole on a small quantity), the coal filling hole that burns is at present closed, upper coal feeding mouth and slag notch have a certain amount of air intake, coal-fired flame on the upper fire-grating is downward like this, coal-fired flame on the lower fire grating upwards, send the heat-exchanging chamber of upper furnace by flame export with heat, and from impact tube, discharge.In combustion process, the not burning-out ut that is fallen down on the upper fire-grating falls and burns away on lower fire grating, plays the effect of economizing on coal to a great extent, has improved the coal utilization rate.Owing to surround by fireclay insulating refractory around the high-temperature flame district, there is not the direct heat absorption of boiler inner wall, can further improve flame ignition temperature in this zone, impel some not have the higher ature of coal burning of burning-point in burning or the flue dust, so both dust emissions can be further reduced, and the utilization rate of coal can be improved again.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, because the utility model coal is added in upper fire-grating, and flame is downward, has increased flame travel and burning time, the big slightly coal ash of a part of particle falls below simultaneously, has played certain dedusting effect.
2, owing to not dryouting the little duff that falls down only on the upper fire-grating, on lower fire grating, burn away, played tangible effect of coal saving.
3, because the boiler inner wall in flame combustion district covers the last layer fire-resistant heat insulating material, reduced the heat-absorbing action of boiler to the high-temp combustion chamber, improved the temperature of combustion chamber greatly, made higher coal-based part blaze up of some burning-points, played and certain economized on coal and subtract the dirt effect.
In a word, the utility model improves, and boiler performance and efficient are further enhanced, and to the pollution of environment, therefore has tangible technological progress when further having reduced boiler operatiopn simultaneously.
Description of drawings
Accompanying drawing 1 is existing vertical single fire grate coal-burning boiler structural representation.
Accompanying drawing 2 is the utility model embodiment one structural representation.
Accompanying drawing 3 is the utility model embodiment two structural representations.
In the above accompanying drawing: 1, shell; 2, impact tube; 3, hot-water cavity; 4, inner casing; 5, water pipe; 6, coal filling hole and fire door; 7, boiler grate; 8, heat-exchanging chamber; 9, go up dedust port and fire door; 10, " " type smoke baffle plate; 11, coal chamber; 12, coal filling hole and fire door; 13, water pipe furnace grate; 14, high-temperature flame chamber; 15, coal filling hole and fire door; 16, lower fire grating; 17, breast hole and fire door; 18, following shoot door; 19, flame export; 20, smoke baffle plate; 21, insulating refractory layer; 22, side smoke box; 23, curved water pipe; 24, following shoot door.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 2, a kind of double grate vertical counter-burning boiler, constitute the water leg structure by inner casing 4 and shell 1, inner casing 4 is a hot-water cavity 3 with the annular seal space that shell 1 forms, the inner chamber of inner casing 4 is a burner hearth, be laid with the water pipe 5 that is communicated with hot-water cavity 3 in the upper furnace space, roof of the furnace is provided with impact tube 2, lower furnace portion is separated out a complete built-in combustion chamber, this combustion chamber is separated into the district of three connections in upper, middle and lower with upper and lower two groups of fire grates, wherein, last district is coal chamber 11, and the one side is provided with coal filling hole and fire door 12; Middle district is high-temperature flame chamber 14, is surrounded by insulating refractory layer 21 around it, and high-temperature flame chamber 14 1 sides are provided with coal filling hole and fire door 15, and opposite side is provided with the flame export 19 that is communicated with burner hearth; Inferior segment is a slag accumulated chamber, and the one side is provided with breast hole and fire door 17.
Described complete built-in combustion chamber is every in lower furnace portion one side, and opposite side leaves the space, and the combustion chamber communicates with upper furnace heat-exchanging chamber 8 through this space by the set flame export 19 of high-temperature flame chamber 14 side direction.In order to improve heat exchanger effectiveness, upper fire-grating is designed to water pipe furnace grate 13, this water pipe furnace grate 13 runs through inner casing 4 by thick horizontal water tube two ends and communicates with hot-water cavity 3, some thin conduit parallel interval are provided with formation, one end of thin conduit communicates with thick horizontal water tube one side, and the other end runs through inner casing 4 and communicates with hot-water cavity 3.Water pipe furnace grate 13 is more than half garden shape.11 tops, coal chamber and sidepiece are formed by " " type smoke baffle plate 10, should be embedded with some water pipes as iliacus in " " type smoke baffle plate 10, and water pipe communicates with hot-water cavity 3.For the ease of clear dirt deashing, end face one side in combustion chamber is provided with dedust port and fire door 9, and other furnace cavity bottom one side in combustion chamber is provided with down shoot door 18.
During operation, coal is added on the water pipe furnace grate 13, lights the back because the air draught effect of flue, the flame on the water pipe furnace grate 13 down, and in high-temperature flame chamber 14 internal combustion, some uts fall on lower fire grating 16 to burn away in the burning.Flame on the lower fire grating 16 up burns, and high-temperature flame chamber 14 is sent the heat-exchanging chamber 8 of upper furnace by flame export with heat, and the water in the heating boiler forms hot water or steam, and flue gas discharges out of the furnace through impact tube 2.Contained dust the high-temperature flue gas that comes out from flame export 19 flows simultaneously, because the variation of the speed and the direction of motion, the barrier effect that adds the top horizontal water tube, most of dust will be deposited in heat exchange 8 bottoms and " on type smoke baffle plate 10 end faces, can be by last dedust port and fire door 9 and 18 removings of following shoot door.
Embodiment two: referring to shown in Figure 3, and a kind of double grate vertical counter-burning boiler, principle is identical with embodiment one, and this structure be fit to be made some evaporation capacity less than 0.2T/ hour boiler.Furnace binding and embodiment one are basic identical, difference is: lower furnace portion is provided with half built-in combustion chamber, specifically be configured to the combustion chamber every the lower semisection at burner hearth, boiler is provided with side smoke box 22 outward, and this side smoke box 22 is communicated with the combustion chamber with the upper furnace space.Upper fire-grating is a water pipe furnace grate 13, and this water pipe furnace grate 13 is provided with by some thin conduit parallel interval and forms, and an end of thin conduit runs through inner casing 4 one sides and communicates with hot-water cavity [3], and the other end runs through inner casing 4 opposite sides and communicates with hot-water cavity 3.Be provided with curved water pipe 23 in the side smoke box 22, this curved water pipe 23 is communicated with hot-water cavity 3.End face one side in combustion chamber is provided with dedust port and fire door 9, removes the dust on the smoke baffle plate 20, and side smoke box 22 bottoms one side is provided with down shoot door 24, can remove the dust in the side smoke box 22.
The main method of operation is as follows: the coal flame on the water pipe furnace grate 13 of top is down burnt, little duff falls on lower fire grating 16 to burn away, flue gas and heat energy upwards enter heat-exchanging chamber 8 again by flame export 19 approaching side smoke boxes 22, upwards discharge out of the furnace by impact tube 2 at last.
Claims (10)
1, a kind of double grate vertical counter-burning boiler, constitute the water leg structure by inner casing [4] and shell [1], inner casing [4] is hot-water cavity [3] with the annular seal space that shell [1] forms, the inner chamber of inner casing [4] is a burner hearth, be laid with the water pipe [5] that is communicated with hot-water cavity [3] in the upper furnace space, roof of the furnace is provided with impact tube [2], it is characterized in that: lower furnace portion is separated out a combustion chamber, this combustion chamber is separated into the district of three connections in upper, middle and lower with upper and lower two groups of fire grates, wherein, last district is coal chamber [11], and the one side is provided with coal filling hole and fire door [12]; Middle district is high-temperature flame chamber [14], is surrounded by insulating refractory layer [21] around it, and high-temperature flame chamber [14] one sides are provided with coal filling hole and fire door [15], and opposite side is provided with the flame export [19] that is communicated with burner hearth; Inferior segment is a slag accumulated chamber, and the one side is provided with breast hole and fire door [17].
2, double grate vertical counter-burning boiler according to claim 1, it is characterized in that: described combustion chamber is every in lower furnace portion one side, opposite side leaves the space, and the combustion chamber communicates with the upper furnace space through this space by the set flame export [19] of high-temperature flame chamber [14] side direction.
3, double grate vertical counter-burning boiler according to claim 2, it is characterized in that: upper fire-grating is water pipe furnace grate [13], this water pipe furnace grate [13] runs through inner casing [4] by thick horizontal water tube two ends and communicates with hot-water cavity [3], some thin conduit parallel interval are provided with formation, one end of thin conduit communicates with thick horizontal water tube one side, and the other end runs through inner casing [4] and communicates with hot-water cavity [3].
4, double grate vertical counter-burning boiler according to claim 3 is characterized in that: described water pipe furnace grate [13] is a large semi-circular.
5, double grate vertical counter-burning boiler according to claim 2, it is characterized in that: [11] top, described coal chamber and sidepiece are formed by " " type smoke baffle plate [10], should be embedded with some water pipes as iliacus in " " type smoke baffle plate [10], water pipe communicates with hot-water cavity [3].
6, double grate vertical counter-burning boiler according to claim 2 is characterized in that: described combustion chamber end face one side is provided with dedust port and fire door [9], and other furnace cavity bottom one side in combustion chamber is provided with down shoot door [18].
7, double grate vertical counter-burning boiler according to claim 1 is characterized in that: described combustion chamber is every the lower semisection at burner hearth, and boiler is provided with side smoke box [22] outward, and this side smoke box [22] is communicated with the combustion chamber with the upper furnace space.
8, double grate vertical counter-burning boiler according to claim 7, it is characterized in that: upper fire-grating is water pipe furnace grate [13], this water pipe furnace grate [13] is provided with by some thin conduit parallel interval and forms, one end of thin conduit runs through inner casing [4] one sides and communicates with hot-water cavity [3], and the other end runs through inner casing [4] opposite side and communicates with hot-water cavity [3].
9, double grate vertical counter-burning boiler according to claim 7 is characterized in that: be provided with curved water pipe [23] in the side smoke box [22], this curved water pipe [23] is communicated with hot-water cavity [3].
10, double grate vertical counter-burning boiler according to claim 7 is characterized in that: described combustion chamber end face one side is provided with dedust port and fire door [9], and side smoke box [22] bottom one side is provided with down shoot door [24].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259735 CN2636084Y (en) | 2003-07-20 | 2003-07-20 | Double-grate vertical counter-combustion boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259735 CN2636084Y (en) | 2003-07-20 | 2003-07-20 | Double-grate vertical counter-combustion boiler |
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| Publication Number | Publication Date |
|---|---|
| CN2636084Y true CN2636084Y (en) | 2004-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03259735 Expired - Fee Related CN2636084Y (en) | 2003-07-20 | 2003-07-20 | Double-grate vertical counter-combustion boiler |
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| CN (1) | CN2636084Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313270A (en) * | 2011-09-05 | 2012-01-11 | 潘志明 | Vertical type inner container-free double grate boiler |
| CN104832926A (en) * | 2015-05-25 | 2015-08-12 | 河北工程大学 | Coal mine waste moving processing device |
-
2003
- 2003-07-20 CN CN 03259735 patent/CN2636084Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313270A (en) * | 2011-09-05 | 2012-01-11 | 潘志明 | Vertical type inner container-free double grate boiler |
| CN102313270B (en) * | 2011-09-05 | 2013-04-17 | 潘志明 | Vertical type inner container-free double grate boiler |
| CN104832926A (en) * | 2015-05-25 | 2015-08-12 | 河北工程大学 | Coal mine waste moving processing device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |