CN217604076U - Adjustable arch structure for double-drum transverse reciprocating grate boiler - Google Patents
Adjustable arch structure for double-drum transverse reciprocating grate boiler Download PDFInfo
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- CN217604076U CN217604076U CN202221792295.7U CN202221792295U CN217604076U CN 217604076 U CN217604076 U CN 217604076U CN 202221792295 U CN202221792295 U CN 202221792295U CN 217604076 U CN217604076 U CN 217604076U
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Abstract
An adjustable arch structure for a double-drum transverse reciprocating grate boiler relates to the technical field of boilers. The utility model discloses a solve the fixed domes of the horizontal reciprocal grate boiler of current double-drum and little to the coal kind accommodation, lead to using the problem that receives the restriction. The utility model discloses an encircle before the boiler, the firebrick layer, hang the mechanism, the supporting layer, concrete layer, back water-cooling wall and back header, the upper end of water-cooling wall pipe is connected with the lower extreme of water-cooling wall arch curve pipe behind the middle part and the straight spool of water-cooling wall behind the middle part respectively behind the lower part, the upper end of water-cooling wall arch curve pipe behind middle part and the straight spool of water-cooling wall is connected with the lower extreme of water-cooling wall pipe behind the upper portion respectively, be connected with the firebrick layer on the inside wall of the middle part of bending of water-cooling wall arch curve pipe behind the middle part, and detachable the connection between the firebrick layer and the middle part back water-cooling wall arch curve pipe. The utility model is used for two boiler section of thick bamboo horizontal reciprocating grate boilers.
Description
Technical Field
The utility model relates to a boiler technical field, concretely relates to an adjustable domes that is used for two horizontal reciprocating grate boilers of boiler section of thick bamboo.
Background
The double-drum horizontal reciprocating grate boiler (SHW boiler) has the advantages of large boiler water capacity, strong capability of adapting to load change, quick temperature rise, high heat efficiency and small occupied area, and is widely applied to the fields of industrial and mining enterprises and centralized heat supply of people's life. In order to achieve the national 'double-carbon' goal, a clean and efficient industrial boiler strategic layout is actively implemented around the 'fourteen-five' strategy, however, due to the fixed arched structure of the existing double-drum transverse reciprocating grate boiler, the application range of the existing double-drum transverse reciprocating grate boiler is small, and the application is limited. In order to better adapt to the needs of different coal quality combustion, ensure the output of the boiler, improve the boiler efficiency, reduce the energy consumption and the discharge of pollutants, a double-drum transverse reciprocating grate boiler with an adjustable arch structure is urgently needed to meet the market demand.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the fixed domes of the horizontal reciprocal grate boiler of current two drums little to the coal kind accommodation, lead to using the problem that receives the restriction, and then provide an adjustable domes that is used for the horizontal reciprocal grate boiler of two drums.
The utility model discloses a solve the technical scheme that above-mentioned technical problem took and be:
an adjustable arch structure for a double-drum horizontal reciprocating grate boiler comprises a boiler front arch, a refractory brick layer, a hanging mechanism, a supporting layer, a concrete layer, a rear water wall and a rear header, wherein the boiler front arch is arranged on the front side of a grate, the rear water wall is arranged on the rear side of the grate, the rear water wall comprises an upper rear water wall tube, a middle rear water wall arch curve tube, a middle rear water wall straight tube and a lower rear water wall tube, the lower end of the lower rear water wall tube is connected with the rear header, the upper end of the lower rear water wall tube is respectively connected with the lower ends of the middle rear water wall arch curve tube and the middle rear water wall straight tube, the upper ends of the middle rear water wall arch curve tube and the middle rear water wall straight tube are respectively connected with the lower end of the upper rear water wall tube, the outer sides of the lower ends of the middle rear water wall arch curve tube and the middle rear water wall straight tube are fixedly connected with the concrete layer, the inner side wall of the middle rear water wall arch curve tube is connected with the refractory brick layer, the outer side wall of the middle rear water wall curve tube is detachably connected with the outer side wall of the middle rear water wall of the middle water wall curve tube, the outer side wall of the middle rear water wall curve tube, the middle rear water wall is connected with the outer side wall of the supporting layer, the outer side wall of the upper and lower side wall of the middle rear water wall of the middle water wall of the supporting layer, and the middle water wall of the middle rear water wall of the supporting layer.
Furthermore, the firebrick layer comprises a plurality of layers of firebricks which are sequentially arranged from bottom to top.
Furthermore, the firebricks are connected with the arched curve tube of the middle rear water-cooled wall in a hanging way.
Furthermore, the shape of the refractory bricks is rectangular, the middle parts of the two sides of the refractory bricks are symmetrically provided with U-shaped grooves, each refractory brick is respectively arranged between two adjacent pipe walls of the arched curve pipe of the middle rear water-cooled wall, and the pipe walls are clamped in the U-shaped grooves.
Furthermore, the middle part rear water-cooling wall arch curve pipe is arranged on the inner side of the middle part rear water-cooling wall straight pipe, and the supporting layer and the hanging mechanism are arranged between the middle part rear water-cooling wall arch curve pipe and the middle part rear water-cooling wall straight pipe.
Furthermore, the lower rear water-cooled wall tube is obliquely arranged from bottom to top to the front side of the fire grate, and the upper rear water-cooled wall tube is arranged along the vertical direction.
Furthermore, the lower part of the middle rear water-cooled wall arch curve pipe is obliquely arranged from bottom to top to the front side of the fire grate, the middle bending part of the middle rear water-cooled wall arch curve pipe is arranged at the position where the inferior coal is burnt, and the upper part of the middle rear water-cooled wall arch curve pipe is arranged by extending from bottom to top to the rear upper part.
Furthermore, the hanging mechanism comprises a hanging beam, a hanging rod, a connecting bolt and a hanging lug, the hanging lug is vertically and fixedly connected to the outer side wall of the lower portion of the middle rear water-cooled wall arch-shaped curved pipe, the hanging beam is fixedly connected to the position right above the hanging lug, the upper end of the hanging rod is fixedly connected with the hanging beam, and the lower end of the hanging beam is hinged to the upper portion of the hanging lug through the connecting bolt.
Furthermore, the supporting layer is a supporting layer built by refractory bricks.
Further, the middle part of the front arch of the boiler is bent towards the rear side of the fire grate.
Compared with the prior art, the utility model the beneficial effect who contains is:
1. the utility model discloses an adjustable domes that SHW boiler was used, it has proposed a fire-new usable mode of installing the resistant firebrick of different quantity on the water wall pipe, reaches to change the back and encircles the coverage to the grate, encircles the needs that the cooperation satisfied different coal quality burning with the front.
2. The utility model discloses can be according to the characteristic (calorific value, volatile matter, ash fusion point etc.) of burning coal, the burning characteristics adjust the resistant firebrick quantity on the back water wall pipe, make the stove after the adjustment encircle can adapt to the needs that different coal quality burnt, guarantee the boiler and export, improve boiler efficiency, reduce the emission of energy consumption and pollutant, be the adjustable back of very good SHW boiler and encircle.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a front view of the hanging mechanism 4 of the present invention;
FIG. 3 is a front view of a refractory brick 3-1 according to the present invention.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 3, and the adjustable arch structure for a double-drum horizontally-arranged reciprocating grate boiler comprises a boiler front arch 1, a firebrick layer 3, a hanging mechanism 4, a supporting layer 5, a concrete layer 6, a rear water wall and a rear header 8, wherein the boiler front arch 1 is arranged at the front side of the grate, the rear water wall is arranged at the rear side of the grate, the rear water wall comprises an upper rear water wall tube 2, a middle rear water wall arch curve tube 9, a middle rear water wall straight tube 10 and a lower rear water wall tube 7, the lower end of the lower rear water wall tube 7 is connected with the rear header 8, the upper end of the lower rear water wall tube 7 is respectively connected with the lower ends of the middle rear water wall arch curve tube 9 and the middle rear water wall straight tube 10, the upper end of water-cooled wall arch bent pipe 9 behind middle part and water-cooled wall straight line pipe 10 behind middle part are connected with the lower extreme of water-cooled wall pipe 7 behind upper portion respectively, the outside rigid coupling of the lower extreme of water-cooled wall arch bent pipe 9 behind middle part and water-cooled wall straight line pipe 10 behind middle part has concrete layer 6, be connected with firebrick layer 3 on the inside wall of the portion of bending in the middle of water-cooled wall arch bent pipe 9 behind the middle part, and detachable connection between firebrick layer 3 and the water-cooled wall arch bent pipe 9 behind the middle part, vertical rigid coupling has supporting layer 5 between the upper and lower both sides of the lateral wall of the portion of bending in the middle of water-cooled wall arch bent pipe 9 behind the middle part, be connected with on the lateral wall of water-cooled wall arch bent pipe 9 lower part behind the middle part and hang mechanism 4.
The front arch 1 and the rear water-cooled wall of the boiler form an arch structure of the boiler. The boiler front arch 1 comprises a front water-cooled wall and a concrete layer wrapped outside the front water-cooled wall, the front water-cooled wall is integrally hung through a front hanging mechanism, and the structure and the composition of the front hanging mechanism are the same as those of a hanging mechanism 4.
In the embodiment, the detachable refractory brick layer 3 is arranged on the rear water-cooling wall, part or all of the refractory brick layer 3 can be installed or removed according to the requirements of different coal quality combustion in the using process, the coverage rate of the rear arch to the fire grate is changed, so that the distance between the front arch and the rear arch is changed, the furnace arch can adapt to the requirements of different coal quality combustion, the output of a boiler is ensured, the boiler efficiency is improved, and the energy consumption and the pollutant emission are reduced.
The hanging mechanism 4 is used for hanging the whole rear water-cooled wall, and the supporting layer 5 is used for placing the rear water-cooled wall to deform.
The second embodiment is as follows: in the present embodiment, the firebrick layer 3 includes a plurality of firebricks 3-1 arranged in this order from bottom to top, as described with reference to fig. 1 to 3. Other components and connection modes are the same as those of the first embodiment.
The multilayer refractory bricks 3-1 are arranged in a mode of stacking layer by layer from bottom to top, and the number of stacked layers is adjusted according to the use requirements of different coal combustion.
The third concrete implementation mode: referring to FIGS. 1 to 3, the embodiment will be described, in which the refractory bricks 3-1 are connected to the arched curved line 9 of the middle rear water wall in a hanging manner. Other components and connection modes are the same as those of the second embodiment.
The fourth concrete implementation mode is as follows: referring to the embodiment described with reference to fig. 1 to 3, the firebricks 3-1 of the embodiment are rectangular, the middles of both sides of the firebricks 3-1 are symmetrically provided with U-shaped grooves 3-2, each firebrick 3-1 is respectively arranged between two adjacent tube walls of an arched curve tube 9 of a middle rear water wall, and the tube walls are clamped in the U-shaped grooves 3-2. Other components and connection modes are the same as those of the third embodiment.
The fifth concrete implementation mode: referring to fig. 1 to 3, the present embodiment will be described, in which the middle rear water-cooling wall arched curved line tube 9 is disposed inside the middle rear water-cooling wall straight line tube 10, and the support layer 5 and the hanging mechanism 4 are disposed between the middle rear water-cooling wall arched curved line tube 9 and the middle rear water-cooling wall straight line tube 10. Other components and connection modes are the same as those of the first embodiment, the second embodiment, the third embodiment or the fourth embodiment.
The sixth specific implementation mode is as follows: referring to fig. 1 to 3, the present embodiment is described, in which the lower rear water wall tubes 7 are inclined from bottom to top toward the front side of the grate, and the upper rear water wall tubes 2 are arranged in the vertical direction. The other components and the connection mode are the same as the fifth embodiment mode.
The seventh embodiment: the present embodiment is described with reference to fig. 1 to 3, in the present embodiment, the lower portion of the middle rear water-cooling wall arched curved line pipe 9 is inclined from bottom to top toward the front side of the fire grate, the middle bent portion of the middle rear water-cooling wall arched curved line pipe 9 is disposed at the position where the low-quality coal is burned, and the upper portion of the middle rear water-cooling wall arched curved line pipe 9 is extended from bottom to top toward the rear. Other components and connection modes are the same as those of the sixth embodiment.
The specific implementation mode is eight: the embodiment is described with reference to fig. 1 to 3, the hanging mechanism 4 of the embodiment includes a hanging beam 4-1, a hanging rod 4-2, a connecting bolt 4-3 and a hanging lug 4-4, the hanging lug 4-4 is vertically and fixedly connected to the outer side wall of the lower portion of the middle rear water wall arch-shaped curved pipe 9, the hanging beam 4-1 is fixedly connected to the position right above the hanging lug 4-4, the upper end of the hanging rod 4-2 is fixedly connected to the hanging beam 4-1, and the lower end of the hanging beam 4-1 is hinged to the upper portion of the hanging lug 4-4 through the connecting bolt 4-3. Other components and connection modes are the same as those of the first embodiment.
The upper end of the suspender 4-2 is fixedly connected with the hanging beam 4-1 through a group of fastening bolts 4-5, after the upper end of the suspender 4-2 vertically passes through the hanging beam 4-1, a group of fastening bolts 4-5 are screwed at the tail end of the suspender 4-2, and a gasket is arranged between the lower end of the fastening bolt 4-5 and the upper end surface of the hanging beam 4-1.
The lower end of the suspender 4-2 is fixedly connected with a connector 4-6, the connector 4-6 is U-shaped, the upper part of the lifting lug 4-4 is inserted between two side walls of the connector 4-6 and is hinged through a connecting bolt 4-3, the tail end of the connecting bolt 4-3 is screwed with a nut 4-7, the nut 4-7 is arranged at the outer side of the side wall of the connector 4-6, and a spring washer 4-8 is arranged between the nut 4-7 and the side wall of the connector 4-6.
The specific implementation method nine: in the present embodiment, the supporting layer 5 is a supporting layer for laying refractory bricks, and is described with reference to fig. 1 to 3. Other components and connection modes are the same as those of the first embodiment.
The detailed implementation mode is ten: the present embodiment will be described with reference to fig. 1 to 3, in which the middle of the front arch 1 of the boiler is curved toward the rear side of the grate. Other components and connection modes are the same as those of the first embodiment.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An adjustable arch structure for a double-drum transverse reciprocating grate boiler is characterized in that: the boiler comprises a boiler front arch (1), a refractory brick layer (3), a hanging mechanism (4), a supporting layer (5), a concrete layer (6), a rear water-cooling wall and a rear header (8), wherein the boiler front arch (1) is arranged on the front side of a fire grate, the rear water-cooling wall is arranged on the rear side of the fire grate, the rear water-cooling wall comprises an upper rear water-cooling wall tube (2), a middle rear water-cooling wall arch curve tube (9), a middle rear water-cooling wall straight tube (10) and a lower rear water-cooling wall tube (7), the lower end of the lower rear water-cooling wall tube (7) is connected with the rear header (8), the upper end of the lower rear water-cooling wall tube (7) is respectively connected with the lower ends of the middle rear water-cooling wall arch curve tube (9) and the middle rear water-cooling wall straight tube (10), the upper ends of the middle rear water-cooling wall arch curve tube (9) and the middle rear water-cooling wall straight tube (10) are respectively connected with the lower end of the upper rear water-cooling wall tube (2), the middle rear water-cooling wall arc curve tube (9) is detachably connected with the upper side wall (9) and the lower end of the middle rear water-cooling wall (9) respectively, the middle water-cooling wall straight tube (9) is connected with the middle rear water-cooling wall straight tube (10), the middle rear water-cooling wall straight tube (9), the middle water-cooling wall straight tube (3), the middle water-cooling wall is connected with the upper side wall (9) and the middle rear water-cooling wall (3), the middle water-cooling wall straight tube (9) and the middle rear water-cooling wall straight tube (3), the outer side wall of the lower part of the middle rear water-cooled wall arch-shaped curve pipe (9) is connected with a hanging mechanism (4).
2. The adjustable arch structure for a double-drum, transversely reciprocating grate boiler of claim 1, wherein: the refractory brick layer (3) comprises a plurality of layers of refractory bricks (3-1) which are sequentially arranged from bottom to top.
3. An adjustable arch structure for a double-drum transversely reciprocating grate boiler as defined in claim 2 wherein: the refractory bricks (3-1) are connected with the middle rear water-cooled wall arch-shaped curve pipe (9) in a hanging manner.
4. An adjustable arch structure for a double-drum horizontally-arranged reciprocating grate boiler according to claim 3, wherein: the shape of the refractory bricks (3-1) is rectangular, U-shaped grooves (3-2) are symmetrically formed in the middles of the two sides of the refractory bricks (3-1), each refractory brick (3-1) is arranged between two adjacent pipe walls of the middle rear water-cooled wall arched curve pipe (9), and the pipe walls are clamped in the U-shaped grooves (3-2).
5. An adjustable arch structure for a double drum, transversely reciprocating grate boiler according to claim 1, 2, 3 or 4 wherein: the middle rear water-cooled wall arch-shaped curve pipe (9) is arranged on the inner side of the middle rear water-cooled wall straight pipe (10), and the supporting layer (5) and the hanging mechanism (4) are arranged between the middle rear water-cooled wall arch-shaped curve pipe (9) and the middle rear water-cooled wall straight pipe (10).
6. An adjustable arch structure for a double-drum horizontally-arranged reciprocating grate boiler according to claim 5, wherein: the lower rear water wall tube (7) is obliquely arranged from bottom to top to the front side of the fire grate, and the upper rear water wall tube (2) is arranged along the vertical direction.
7. An adjustable arch structure for a double-drum transversely reciprocating grate boiler as defined in claim 6 wherein: the lower part of the middle rear water-cooled wall arch-shaped curved line pipe (9) is obliquely arranged from bottom to top to the front side of the fire grate, the middle bending part of the middle rear water-cooled wall arch-shaped curved line pipe (9) is arranged at the position where the inferior coal is burnt, and the upper part of the middle rear water-cooled wall arch-shaped curved line pipe (9) is arranged by extending from bottom to top to the rear upper part.
8. The adjustable arch structure for a double-drum horizontally-arranged reciprocating grate boiler according to claim 1, wherein: the hanging mechanism (4) comprises a hanging beam (4-1), a hanging rod (4-2), a connecting bolt (4-3) and a hanging lug (4-4), the hanging lug (4-4) is vertically and fixedly connected to the outer side wall of the lower portion of the middle rear water-cooled wall arch-shaped curve pipe (9), the hanging beam (4-1) is fixedly connected to the position right above the hanging lug (4-4), the upper end of the hanging rod (4-2) is fixedly connected with the hanging beam (4-1), and the lower end of the hanging beam (4-1) is hinged to the upper portion of the hanging lug (4-4) through the connecting bolt (4-3).
9. The adjustable arch structure for a double-drum horizontally-arranged reciprocating grate boiler according to claim 1, wherein: the supporting layer (5) is a supporting layer for building refractory bricks.
10. The adjustable arch structure for a double-drum, transversely reciprocating grate boiler of claim 1, wherein: the middle part of the boiler front arch (1) is arranged in a bending way towards the rear side of the fire grate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221792295.7U CN217604076U (en) | 2022-07-11 | 2022-07-11 | Adjustable arch structure for double-drum transverse reciprocating grate boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221792295.7U CN217604076U (en) | 2022-07-11 | 2022-07-11 | Adjustable arch structure for double-drum transverse reciprocating grate boiler |
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| Publication Number | Publication Date |
|---|---|
| CN217604076U true CN217604076U (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221792295.7U Active CN217604076U (en) | 2022-07-11 | 2022-07-11 | Adjustable arch structure for double-drum transverse reciprocating grate boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217604076U (en) |
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2022
- 2022-07-11 CN CN202221792295.7U patent/CN217604076U/en active Active
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