CN211233362U - Double-drum double-hearth composite combustion settling chamber corner tube boiler - Google Patents

Double-drum double-hearth composite combustion settling chamber corner tube boiler Download PDF

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Publication number
CN211233362U
CN211233362U CN201920290360.8U CN201920290360U CN211233362U CN 211233362 U CN211233362 U CN 211233362U CN 201920290360 U CN201920290360 U CN 201920290360U CN 211233362 U CN211233362 U CN 211233362U
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water
wall
boiler
cooled
hearth
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宫明月
孙宇鹏
孙伟东
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Harbin Sifang Boiler Co ltd
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Harbin Sifang Boiler Co ltd
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Abstract

The utility model discloses a two boiler barrels, two furnace composite combustion settling chamber corner tube boiler, including boiler furnace body part, combustion system part. A supporting structure and a double-hearth structure are arranged in the boiler body, and the supporting structure comprises a front side support, a middle support and a rear side support downcomer which are vertically arranged; the two ends of the front side support, the middle support and the rear side support downcomer are respectively connected with an upper header and a lower header of a side water-cooling wall which are horizontally arranged, one side of the boiler body is provided with an upper boiler barrel and a lower boiler barrel which are connected by a convection tube bundle, the upper end of the upper boiler barrel is connected with a water inlet pipe, and the bottom of the upper boiler barrel is connected with a downcomer I, a downcomer II and a downcomer III which are communicated with the front side support, the middle support and the rear side support downcomer; the double-hearth structure consists of a hearth I and a hearth II; the biomass fuel drying device has the characteristics of high supporting strength, stable structure, energy conservation, environmental protection and the like, and can dry the biomass fuel in a hearth, realize that the fuel can be directly bundled and fully combusted, and reduce the emission of nitrogen oxides.

Description

Double-drum double-hearth composite combustion settling chamber corner tube boiler
Technical Field
The utility model relates to a boiler technical field especially can satisfy national boiler atmospheric pollutants emission standard's emission requirement, and it is high to solve the moisture that the living beings were beaten after the bundle, and the calorific value is low, can not the direct combustion, and the burning is insufficient, and the slagging scorification is serious, and nitrogen oxide emission concentration is high, polluted environment's a two boiler section of thick bamboo double-furnace composite combustion settling chamber angle pipe boiler.
Background
It is well known that as society's demand for energy increases, fossil fuels, which are the main source of energy, are rapidly decreasing. Therefore, the search for a renewable alternative energy source becomes a focus of general social attention. The biomass energy is important renewable energy and has the characteristics of greenness, low carbon, cleanness, renewability and the like. Accelerating the development and utilization of biomass energy becomes important. However, the biomass fuel of the existing biomass boiler has high water content and low heat value in the aspects of use of the biomass fuel and boiler structure, but the existing biomass fuel with high water content can not be directly bundled and combusted, and the biomass fuel can be combusted only after the moisture is dried, so that the use cost is increased, the combustion is insufficient, and the slag bonding is serious; the boiler has low strength and is not firmly supported, so that safety accidents are easily caused; without a settling chamber, dust cannot settle, the emission concentration of nitrogen oxides is high, and the thermal efficiency of the boiler is low. Therefore, the boiler provided with the settling chamber and the stable supporting structure can dry the biomass fuel in the boiler, so that the biomass fuel can be directly bundled and fully combusted, the emission of nitrogen oxides is reduced, the slagging problem is solved, and the thermal efficiency of the boiler is improved, and the problem which needs to be solved at present is provided.
Disclosure of Invention
The utility model aims at: improve to the ubiquitous problem of prior art, overcome prior art not enough and defect, provide one kind and have the deposit room, the high strength supports, and structure safety and stability makes biomass fuel can be dry in furnace, and then realizes that fuel can directly beat the bundle and fully burn, reduces nitrogen oxide and discharges to improve boiler thermal efficiency's a two boiler section of thick bamboo two furnace composite combustion deposit room angle pipe boiler.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a double-drum double-hearth composite combustion settling chamber corner tube boiler, which comprises a boiler body part and a combustion system part. A supporting structure and a double-hearth structure are arranged in the boiler body, and the supporting structure comprises a front-side supporting downcomer, a middle supporting downcomer and a rear-side supporting downcomer which are vertically arranged; front side supports downtake, intermediate strut downtake, back side support downtake both ends and equally divide collection box and collection box under the side water-cooling wall that the difference is connected with the level and sets up, boiler body one side is provided with upper and lower drum by convection bank connection, it is connected with the inlet tube to go up the drum upper end, go up the drum bottom be connected with downtake I, downtake II, the downtake III of downtake of front side support downtake, intermediate strut, back side support downtake intercommunication, it is connected with the wet return to go up the drum, go up the wet return respectively with collection box intercommunication.
Optionally, the double-hearth structure comprises a hearth I and a hearth II, wherein the hearth I is formed by a space surrounded by the upper part of a front arch water-cooled wall, a water-cooled plenum membrane wall, a sealing plate, the upper part of a side water-cooled wall and the upper part of a rear arch water-cooled wall; the hearth II is formed by a space surrounded by the whole front arch water-cooled wall, the rear arch water-cooled wall and the side water-cooled wall; the upper end of the front arch water-cooled wall is connected with the front arch upper header, the lower end of the front arch water-cooled wall is connected with the front arch lower header, the upper end of the side water-cooled wall is connected with the side water-cooled wall upper header, the lower end of the side water-cooled wall is connected with the side water-cooled wall lower header, the upper end of the water-cooled chamber membrane wall is connected with the water-cooled chamber membrane wall upper header, and the lower end of the water-cooled chamber membrane wall is connected with the water-cooled chamber membrane wall lower header; the rear arch water-cooled wall upper end is connected with the rear arch upper header, the lower end of the rear arch water-cooled wall is connected with the rear arch and the channel rear wall lower header, the channel rear wall water-cooled wall is arranged on the outer side of the rear arch water-cooled wall, the upper end of the channel rear wall water-cooled wall is connected with the channel rear wall upper header, the lower end of the channel rear wall water-cooled wall is connected with the rear arch and the channel rear wall lower header, the convection tube bundle is arranged on the outer side of the channel rear wall water-cooled wall, the upper end and the lower end of the convection tube bundle are respectively connected with the upper boiler barrel and the lower boiler barrel, a flue gas flow opening is formed above the rear arch water-cooled wall, and a flue gas outlet.
Optionally, the biomass combustion chamber is designed to be a U-shaped structure, and is formed by a staggered lean-burn tube structure bent from the lower part of a front arch water-cooled wall with an inward-convex lower part, a staggered lean-burn tube structure bent from the upper part of a water-cooled plenum membrane wall, and a space enclosed by a sealing plate, wherein the lean-burn tube at the lower part of the front arch can enable flame at the lower part of the hearth to directly heat the biomass fuel in the biomass combustion chamber to achieve the effect of dry combustion, and further the problems that the biomass fuel cannot be directly bundled and combusted and cannot be sufficiently combusted are solved.
Optionally, the water-cooling plenum is designed into a U-shaped structure and is formed by a space enclosed by a lower water-cooling plenum membrane wall header, an upper water-cooling plenum membrane wall header, a water-cooling plenum membrane wall and a hood, the upper portion of the U-shaped structure is bent into a staggered dilution pipe structure, one part of the U-shaped structure plays a supporting role, and the hood is fully distributed on the upper surface of the other part of the water-cooling plenum membrane wall to play a role in supplying air.
Optionally, the sealing plates are arranged in two parallel rows, wherein one sealing plate is opened and the other sealing plate is closed, so that a tight sealing effect is achieved.
Optionally, the settling chamber comprises an upper settling chamber and a lower settling chamber, and the upper settling chamber is formed by a space surrounded by a rear arch water-cooled wall, a channel rear wall water-cooled wall and a side water-cooled wall; the lower settling chamber is formed by a space enclosed by a channel rear wall water-cooled wall, a convection bank and a side water-cooled wall. The structure not only increases the heating area, but also plays a role in settling the smoke dust.
Optionally, the front-side supporting downcomer, the middle supporting downcomer and the rear-side supporting downcomer are provided with a throttling ring.
Optionally, the bottom of the collector below the side water-cooling wall is provided with symmetrically arranged supports.
Optionally, the grate portion is designed to adopt a reciprocating grate structure, as shown in fig. 1. It is to be noted that fig. 1 shows a reciprocating grate structure and fig. 2 shows a traveling grate structure. The present technique is also applicable to other grate configurations.
The utility model discloses for prior art gain following technological effect: the design of double-hearth, water-cooling air chamber and settling chamber makes it possible to make the biomass fuel which can not be directly bundled and burned originally, and also can be fully burned, and the emission of nitrogen oxides is reduced, thereby improving the thermal efficiency of the boiler and having simple structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of an embodiment of a double-drum double-hearth composite combustion settling chamber corner tube boiler of the present invention.
FIG. 2 is a front view of the second structure of the angle tube boiler of the double-drum double-hearth composite combustion settling chamber of the utility model.
In the figure: 1 boiler body, 2 water inlet pipe, 3 upper drum, 4 down pipe I, 5 down pipe II, 6 throttle ring I, 7 front side support down pipe, 8 furnace I, 9 side water cooling wall, 10 front arch water cooling wall, 11 sealing plate, 12 biomass combustion chamber, 13 water cooling plenum membrane wall upper header, 14 air inlet, 15 water cooling plenum membrane wall lower header, 16 hood, 17 water cooling plenum, 18 water cooling plenum membrane wall, 19 front arch lower header, 20 side water cooling wall upper header, 21 upper return pipe, 22 front arch upper header, 23 rear arch upper header, 24 channel rear wall upper header, 25 middle support down pipe, 26 throttle ring II, 27 outlet water header, 28 throttle ring III, 29 down pipe III, 30 rear side support down pipe, 31 upper settling chamber, 32 rear arch water cooling wall, 33 convection bank, 34 lower settling chamber, 35 flue gas outlet, 36 lower drum, 37 furnace II, 38 channel rear wall water cooling wall, 39 rear arch and channel rear wall lower header, 40 side water cooling wall lower header, 41 support and 42 reciprocating grate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model aims at: improve to the ubiquitous problem of prior art, overcome prior art not enough and defect, provide one kind and have the deposit room, the high strength supports, and structure safety and stability makes biomass fuel can be dry in furnace, and then realizes that fuel can directly beat the bundle and fully burn, reduces nitrogen oxide and discharges to improve boiler thermal efficiency's a two boiler section of thick bamboo two furnace composite combustion deposit room angle pipe boiler.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example one
The utility model provides a two boiler barrels, two furnace composite combustion settling chamber corner tube boiler, as shown in figure 1, including boiler furnace body part, combustion system part. The boiler body part comprises a boiler body 1, six front side supporting down pipes 7 with supporting and descending functions, a throttle ring I6, a middle supporting down pipe 25, a throttle ring II 26, a rear side supporting down pipe 30 and a throttle ring III 28 which are vertically arranged around the boiler body 1, an upper boiler barrel 3 and a lower boiler barrel 36 are arranged on one side of the boiler body 1, the upper boiler barrel 3 and the lower boiler barrel 36 are connected by a convection tube bundle 33, a water inlet pipe 2 communicated with the upper boiler barrel 3, a water outlet header 27, a down pipe I4, a down pipe II 5, a down pipe III 29, an upper return pipe 21, a side water cooling wall upper header 20, a side water cooling wall 9, a side water cooling wall lower header 40, a water cooling wall upper header 13, a water cooling plenum wall 18, a water cooling plenum wall lower header 15, a water cooling plenum 17, a front arch water cooling wall 10, a front arch upper header 22, a front arch lower header 19 and a rear arch upper header 23, the device comprises a rear arch water-cooled wall 32, a channel rear wall upper header 24, a channel rear wall water-cooled wall 38, a rear arch and channel rear wall lower header 39, a hearth I8, a hearth II 37, a sealing plate 11, a biomass combustion chamber 12, an air inlet 14, an air cap 16, an upper settling chamber 31, a lower settling chamber 34, a flue gas outlet 35, a support 41 and a grate part, wherein the grate part is arranged at the bottom of the boiler body part and fixedly connected with a boiler body 1 of the boiler body part.
Specifically, a space surrounded by the upper part of a front arch water-cooled wall 10, a water-cooled air chamber membrane wall 18, a sealing plate 11, the upper part of a side water-cooled wall 9 and the upper part of a rear arch water-cooled wall 32 of a boiler body 1 of a boiler body part forms a hearth I8.
A furnace chamber II 37 is formed by a space surrounded by the front arch water-cooled wall 10, the rear arch water-cooled wall 32, the front arch lower header 19, the front arch upper header 22, the rear arch upper header 23, the rear arch and channel rear wall lower header 39 and the side water-cooled wall 9 of the boiler body 1 of the boiler body part.
A biomass combustion chamber 12 is formed by a space surrounded by a bent lower part of a front arch water-cooling wall 10 of a boiler body 1, a bent upper part of a water-cooling plenum membrane wall 18, a sealing plate 11 and a lower part of a side water-cooling wall 9 in a boiler body part.
A water cooling air chamber 17 is formed by the space enclosed by a water cooling air chamber membrane wall lower header 15, a water cooling air chamber membrane wall upper header 13, a water cooling air chamber membrane wall 18 and a blast cap 16 of a boiler body 1 of a boiler body part.
A settling chamber provided in a body part of the boiler, including an upper settling chamber 31 and a lower settling chamber 34; the upper settling chamber is formed by a space surrounded by a rear arch water-cooled wall 32 of the boiler body 1, a channel rear wall water-cooled wall 38 and a side water-cooled wall 9; the lower settling chamber is formed by the space enclosed by the channel back wall water wall 38, the convection bank 33 and the side water wall 9.
The supporting structure is composed of six front supporting downcomers 7 with supporting and descending functions, a middle supporting downcomer 25, a rear supporting downcomer 30, an upper boiler barrel 3, a lower boiler barrel 36, a convection bank 33, a side water-cooled wall lower header 40 and a side water-cooled wall upper header 20 which are vertically arranged around a boiler body 1.
The boiler water circulation flow is that the boiler backwater flows into the upper boiler barrel 3 through the water inlet pipe 2, and the boiler effluent flows out through the water outlet header 27. The water-cooled boiler comprises an upper boiler barrel 3, a downcomer II 5, a front-side supporting downcomer 7, a throttling ring I6 and a front arch lower header 19, wherein the upper boiler barrel is communicated with feed water, and the feed water flows into a front arch upper header 22 and an upper water return pipe 21 to return to the upper boiler barrel 3 after heat exchange of a hearth, so that water circulation of a front arch water-cooled wall 10 is completed; secondly, the upper drum 3, the downcomer I4, the middle support downcomer 25, the throttle ring II 26 and the side water-cooled wall lower header 40 are communicated with feed water, and the feed water flows into the side water-cooled wall upper header 20 to return to the upper drum 3 after heat exchange of a hearth, so that water circulation of the side water-cooled wall 9 is completed; thirdly, the upper drum 3, a downcomer III 29, a throttling ring III 28 and a rear side support a downcomer 30, a rear arch and channel rear wall lower header 39 is communicated with feed water, the feed water respectively flows into a rear arch upper header 23 and a channel rear wall upper header 24 after heat exchange of a hearth, an upper water return pipe 21 returns to the upper drum 3, and water circulation of a rear arch water-cooled wall 32 and a channel rear wall water-cooled wall 38 is completed; and fourthly, the upper boiler barrel 3 enters the lower boiler barrel 36 through the convection bank 33, part of the water rises and part of the water falls due to density difference, natural circulation among the upper boiler barrel 3, the lower boiler barrel 36 and the convection bank 33 is completed, and water is discharged from the water outlet header 27.
Example two
The present embodiment is a further improvement made on the basis of the first embodiment, and includes all the technical features of the first embodiment, as shown in fig. 2, the combustion apparatus is a traveling grate.
The utility model discloses a working process and principle do: firstly, biomass particles and coal fall on a grate 42 under the action of gravity and are fed into a hearth II 37 to be combusted under the action of mechanical power, wherein generated heat is absorbed by a front arch water-cooled wall 10, a rear arch water-cooled wall 32 and a side water-cooled wall 9 of the hearth, the generated heat and high-temperature flame are used for drying biomass fuel, directly crushed biomass fuel, particles and the like in a biomass combustion chamber 17 through a diluent pipe bent at the lower part of the front arch water-cooled wall 10 and then are combusted, the generated heat is also absorbed by the front arch water-cooled wall 10, the rear arch water-cooled wall 32 and the side water-cooled wall 9, cooled flue gas passes through an upper settling chamber 31 and a lower settling chamber 34 and then flows upwards to enter a convection tube bundle 33 to be flushed and subjected to heat exchange, the whole heat exchange process is finished, and then the flue gas is discharged from an outlet 35, and the working process of boiler flue gas is. Secondly, the boiler water circulation flow is that the boiler backwater flows into the upper boiler barrel 3 through the water inlet pipe 2, and the boiler effluent flows out through the effluent header 27. The water-cooled boiler comprises an upper boiler barrel 3, a downcomer II 5, a front-side supporting downcomer 7, a throttling ring I6 and a front arch lower header 19, wherein the upper boiler barrel is communicated with feed water, and the feed water flows into a front arch upper header 22 and an upper water return pipe 21 to return to the upper boiler barrel 3 after heat exchange of a hearth, so that water circulation of a front arch water-cooled wall 10 is completed; secondly, the upper drum 3, the downcomer I4, the middle support downcomer 25, the throttle ring II 26 and the side water-cooled wall lower header 40 are communicated with feed water, and the feed water flows into the side water-cooled wall upper header 20 to return to the upper drum 3 after heat exchange of a hearth, so that water circulation of the side water-cooled wall 9 is completed; thirdly, the upper drum 3, a downcomer III 29, a throttling ring III 28 and a rear side support a downcomer 30, a rear arch and channel rear wall lower header 39 is communicated with feed water, the feed water respectively flows into a rear arch upper header 23 and a channel rear wall upper header 24 after heat exchange of a hearth, an upper water return pipe 21 returns to the upper drum 3, and water circulation of a rear arch water-cooled wall 32 and a channel rear wall water-cooled wall 38 is completed; and fourthly, the upper boiler barrel 3 enters the lower boiler barrel 36 through the convection tube bundle 33, part of the water enters the lower boiler barrel 36 due to density difference, natural circulation among the upper boiler barrel 3, the lower boiler barrel 36 and the convection tube bundle 33 is completed, water is discharged from the water outlet header 27, and the whole water circulation working process is completed. It is important to point out that this technique double furnace structure and water-cooling wind room structure, the former mainly comprises furnace I8 and furnace II 37, and furnace I8 mainly relies on the high temperature heat and the flame that the fuel burning produced in furnace II 37 to dry the biomass fuel of bundling in biomass combustion chamber 17 and heat and make its burning, has solved the biomass fuel of directly bundling and can not burn and the insufficient problem of burning. The water-cooling air chamber is designed into a U shape, the upper part of the U shape is bent into a staggered dilution pipe structure, one part of the U shape plays a supporting role, and the film-shaped wall 18 of the part of the water-cooling air chamber is fully distributed with an air cap 16 to play a role of air supply. The technology can be a double-drum double-hearth composite combustion settling chamber corner tube boiler hot water boiler, a steam boiler, a pulverized coal furnace, a fluidized bed boiler and other types of boilers. In addition, the technology can be widely applied to other various corner tube boilers.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (4)

1. The utility model provides a compound burning settling chamber angle pipe boiler of two drums, two hearths which characterized in that: the biomass combustion furnace comprises a boiler body part and a combustion system part, wherein the combustion system part comprises a biomass combustion chamber and a grate;
a supporting structure and a double-hearth structure are arranged in the boiler body, and the supporting structure comprises a front side supporting downcomer, a middle supporting downcomer and a rear side supporting downcomer which are vertically arranged; the double-hearth structure comprises a hearth I and a hearth II, wherein the hearth I is formed by a space surrounded by the upper part of a front arch water-cooling wall, a water-cooling air chamber membrane wall, a sealing plate, the upper part of a side water-cooling wall and the upper part of a rear arch water-cooling wall; the hearth II is formed by a space surrounded by the whole front arch water-cooled wall, the rear arch water-cooled wall and the side water-cooled wall;
the upper end of the front arch water-cooled wall is connected with the front arch upper header, the lower end of the front arch water-cooled wall is connected with the front arch lower header, the upper end of the side water-cooled wall is connected with the side water-cooled wall upper header, the lower end of the side water-cooled wall is connected with the side water-cooled wall lower header, the upper end of the water-cooled chamber membrane wall is connected with the water-cooled chamber membrane wall upper header, and the lower end of the water-cooled chamber membrane wall is connected with the water-cooled chamber membrane wall lower header; the upper end of the rear arch water-cooled wall is connected with a rear arch upper header, the lower end of the rear arch water-cooled wall is connected with a rear arch and a channel rear wall lower header, a channel rear wall water-cooled wall is arranged on the outer side of the rear arch water-cooled wall, the upper end of the channel rear wall water-cooled wall is connected with the channel rear wall upper header, the lower end of the channel rear wall water-cooled wall is connected with the rear arch and the channel rear wall lower header, a convection tube bundle is arranged on the outer side of the channel rear wall water-cooled wall, the upper end and the lower end of the convection tube bundle are respectively connected with an upper boiler barrel and a lower boiler barrel, a flue gas flow port is;
the space enclosed by the lower collecting box of the membrane wall of the water-cooling air chamber, the upper collecting box of the membrane wall of the water-cooling air chamber, the membrane wall of the water-cooling air chamber and the air cap forms the water-cooling air chamber, the water-cooling air chamber is designed into a U-shaped structure, the upper part of the U-shaped structure is bent into a staggered dilution pipe structure, one part of the U-shaped structure plays a supporting role, and the air cap is fully distributed on the membrane wall of the part of the water-cooling air chamber to play a role;
the settling chamber comprises an upper settling chamber and a lower settling chamber, and the upper settling chamber is formed by a space surrounded by a rear arch water-cooled wall, a channel rear wall water-cooled wall and a side water-cooled wall; the lower settling chamber is formed by a space enclosed by a channel rear wall water-cooled wall, a convection bank and a side water-cooled wall; the structure not only increases the heating area, but also plays a role in settling the smoke dust;
the biomass combustion chamber is designed to be of a U-shaped structure and is formed by a space enclosed by a staggered thin-film tube structure bent at the lower part of a front arch water-cooling wall with an inward convex lower part, a staggered thin-film tube structure bent at the upper part of a water-cooling wind chamber membrane wall and a sealing plate, wherein the thin-film tube at the lower part of the front arch can enable flame at the lower part of a hearth to directly heat biomass fuel in the biomass combustion chamber to play a role in dry combustion, and further the problems that the biomass fuel cannot be directly bundled and combusted and cannot be fully combusted are solved;
the fire grate part is arranged at the bottom of the boiler body part and fixedly connected with the boiler body of the boiler body part, and the fire grate part is designed to adopt a reciprocating fire grate structure.
2. The double-drum double-hearth composite combustion settling chamber corner tube boiler of claim 1, characterized in that: the sealing plates are arranged in parallel in two rows, wherein one sealing plate is opened and the other sealing plate is closed, so that the sealing effect is realized.
3. The double-drum double-hearth composite combustion settling chamber corner tube boiler of claim 1, characterized in that: the front side supporting descending pipe, the middle supporting descending pipe and the rear side supporting descending pipe are provided with throttling rings.
4. The double-drum double-hearth composite combustion settling chamber corner tube boiler of claim 1, characterized in that: the bottom of the collector below the side water-cooling wall is provided with symmetrically arranged supports.
CN201920290360.8U 2019-03-08 2019-03-08 Double-drum double-hearth composite combustion settling chamber corner tube boiler Active CN211233362U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109737598A (en) * 2019-03-08 2019-05-10 哈尔滨四方锅炉有限公司 A kind of double drum twin furnace compound combustion expansion chamber corner tube boilers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109737598A (en) * 2019-03-08 2019-05-10 哈尔滨四方锅炉有限公司 A kind of double drum twin furnace compound combustion expansion chamber corner tube boilers
CN109737598B (en) * 2019-03-08 2024-05-31 哈尔滨四方锅炉有限公司 Double-drum double-hearth composite combustion settling chamber corner tube boiler

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