CN111998326B - Natural gas fired boiler with double-ring circular full water-cooling central cylinder for burner - Google Patents
Natural gas fired boiler with double-ring circular full water-cooling central cylinder for burner Download PDFInfo
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- CN111998326B CN111998326B CN202010906928.1A CN202010906928A CN111998326B CN 111998326 B CN111998326 B CN 111998326B CN 202010906928 A CN202010906928 A CN 202010906928A CN 111998326 B CN111998326 B CN 111998326B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
- F23C5/02—Structural details of mounting
- F23C5/06—Provision for adjustment of burner position during operation
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- General Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
A natural gas fired boiler comprising a double-ring circular full water-cooling central cylinder for a burner is characterized in that a circular hole is formed in a front water-cooling membrane wall of a boiler body, a part of circulating water pipes in the front water-cooling membrane wall around the circular hole are bent forwards to form a front cylindrical pipe bundle, the front end of the front cylindrical pipe bundle is connected with a circular front water collecting cylinder, the other part of circulating water pipes in the front water-cooling membrane wall around the circular hole are bent backwards to form a rear cylindrical pipe bundle, and the rear end of the rear cylindrical pipe bundle is connected with a circular rear water collecting cylinder. The invention has the following advantages: the double-ring circular full water-cooling central cylinder is a circular cylinder which is directly pulled inwards and outwards by the circulating water pipe, so that the pipe treatment in various shapes is not required, the structure is simple, and the manufacturing time and the manufacturing cost are saved; the inside water cooling that has of cylindrical structure, the pouring material is laid to the section of thick bamboo inner wall in the centre, therefore when the combustor was igniteed the operation, the temperature of cylindrical structure is lower, and the cylindrical structure is difficult for being burnt out, has guaranteed the life of cylindrical structure effectively.
Description
Technical Field
The invention belongs to the technical field of energy conservation and environmental protection of boilers, and particularly relates to a natural gas fired boiler with a double-ring circular full water-cooling central cylinder for a burner.
Background
In recent years, the SZS type natural gas-fired boiler in China has been rapidly developed in the market. The typical structure of the boiler mainly comprises two parts, wherein one side of the boiler is an offset hearth, the front end part of the hearth is provided with a burner, the hearth is used as a space for providing fuel combustion, water-cooling membrane type wall heating surfaces are arranged on the periphery of the hearth, and the heating surfaces play roles of heat absorption and sealing; the other side is provided with a superheater and a convection bank or only the convection bank, the heating surfaces are used for absorbing heat emitted by flowing of flue gas and are collectively called as convection heating surfaces, the peripheries of the two parts are all sealed by water-cooling membrane walls, and the two parts look like an English letter D in appearance, so the boiler is called as a D-type boiler, and the boiler is widely used in small industrial boilers in China.
The D-type boiler is generally provided with a burner at the front part of a hearth, a combustion cylinder of the burner is inserted into the hearth a little through an opening of a water-cooling membrane wall at the front part of the hearth after being rolled by a steel plate, the opening of the water-cooling membrane wall at the front part is formed by leading a pipe at the opening to form an irregular neutral position towards two sides of the opening, the steel plate is arranged in the neutral position, a circular hole is arranged on the steel plate to place the combustion cylinder of the burner, in order to place the combustion cylinder, a support frame is welded at the front and the back of the neutral position of the pipe, and a refractory and temperature-resistant pouring material is carried out to form a heat-insulating cylinder which is used for burning natural gas of the combustion cylinder of the burner, because the natural gas is quickly burnt and the burning temperature is high, the combustion cylinder channel is a poured heat-insulating combustion channel, and the support channel is formed by the opening of the steel plate at the membrane wall, the temperature at the position can reach more than 1300 ℃, and the weight of the heat-insulating combustion cylinder is heavy, under the dual function of high temperature and combustion tube weight, can cause the deformation of the anterior water-cooling membrane type wall of furnace, the steel sheet of putting the combustion tube not only warp, can be torn moreover and leak the cigarette, this kind of boiler operation generally is malleation operation, can cause unpredictable potential safety hazard along with high-speed flame's blowout during leaking the cigarette, problem performance is more obvious on the little tonnage boiler. In addition, the combustor is arranged in the combustion cylinder, the axial position of the combustor extending into the hearth is inconvenient to adjust, and the direction of flame sprayed by the combustor is also difficult to adjust.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the natural gas fired boiler comprising the double-ring circular full water-cooling central cylinder for the burner, which has good high temperature resistance and long service life and is convenient for adjusting the flame injection direction of the burner.
In order to solve the technical problems, the invention adopts the following technical scheme: a natural gas fired boiler comprising a double-ring circular full water-cooling central cylinder for a burner comprises a boiler body with a water-cooling membrane type wall, wherein an upper boiler barrel is arranged at the upper part of the left side of the boiler body, a lower boiler barrel is arranged at the lower part of the left side of the boiler body, a convection tube bundle is arranged between the lower part of the upper boiler barrel and the upper part of the lower boiler barrel, a round hole is arranged on the front water-cooling membrane type wall of the boiler body, a part of circulating water pipes in the front water-cooling membrane type wall around the round hole are bent forwards to form a front cylindrical tube bundle, the front end of the front cylindrical tube bundle is connected with a circular ring-shaped front water collecting cylinder, the other part of circulating water pipes in the front water-cooling membrane type wall around the round hole is bent backwards to form a rear cylindrical tube bundle, the rear end of the rear cylindrical tube bundle is connected with a circular ring-shaped rear water collecting cylinder, the central lines of the front cylindrical tube bundle, the rear water collecting cylinder bundle and the round hole are superposed, a front flat steel is welded between two adjacent circulating water pipes of the front cylindrical tube bundle, a rear flat steel is welded between two adjacent circulating water pipes of the rear cylindrical pipe bundle, and refractory castable materials are poured on the inner ring and the outer ring of the front cylindrical pipe bundle, the front flat steel, the front water collecting barrel, the rear cylindrical pipe bundle, the rear flat steel and the rear water collecting barrel to form a cylindrical structure; the burner is arranged in the cylinder structure and penetrates through the round hole to spray flame to the interior of the hearth.
A plurality of straight rod grabbing nails are uniformly welded on the inner circumference of the front water collecting cylinder, the outer circumference of the front water collecting cylinder, the inner circumference of the rear water collecting cylinder and the outer circumference of the rear water collecting cylinder, and each straight rod grabbing nail is arranged along the radial direction of the water collecting cylinder;
the front side of the circumference of the front water collecting cylinder is welded with a front short section flat steel, the rear side of the circumference of the rear water collecting cylinder is welded with a rear short section flat steel, and special-shaped grabbing nails are welded on the inner and outer side surfaces of the front flat steel, the inner and outer side surfaces of the rear flat steel, the front short section flat steel and the rear short section flat steel;
the straight-bar grapple nails and the special-shaped grapple nails are both poured into the cylindrical structure and form an integral structure with the refractory castable.
The combustor comprises three sections, and the cylinder shell of adjacent two sections passes through flexonics pipe coaxial coupling, and cylinder structure inner wall is equipped with a plurality of cell type tracks along the axis direction, and the excircle of the cylinder shell of combustor is equipped with along the rolling gyro wheel of cell type track, and the middle one section rear side outer circumference of combustor is equipped with the heat preservation and insulation material with cylinder structure inner wall and cell type track sliding fit.
The pre-buried convex high temperature resistant steel sheet connecting block that makes progress that has of cylinder structure rear end is equipped with two telescopic adjusting rods between the rear side wall of high temperature resistant steel sheet connecting block and the rearmost of combustor one section, the upper end and the high temperature resistant steel sheet connecting block of two telescopic adjusting rods pass through universal hinged joint, universal hinged joint is passed through down on the lower extreme of two telescopic adjusting rods and the rearmost one section upper portion of combustor, two telescopic adjusting rods all incline to set up, two telescopic adjusting rods set up about cylinder structure's central line bilateral symmetry.
The telescopic adjusting rod comprises an internal thread sleeve and a screw rod which extends into the internal thread sleeve and is in threaded connection with the internal thread sleeve.
By adopting the technical scheme, the water-cooling membrane type wall at the front side of the furnace body respectively extends the circulating water pipes inwards (backwards) and outwards (forwards) to form a circular water-cooling channel (a back cylindrical pipe bundle and a front cylindrical pipe bundle), in order to form complete water circulation, a rear water collecting cylinder is arranged at the rear end part of the rear cylindrical tube bundle, a front water collecting cylinder is arranged at the front end part of the front cylindrical tube bundle, thus forming the double-ring circular full water-cooling central cylinder, eliminating the process of arranging a steel plate behind the tube for perforating and welding, and according to the diameter of the burner, pouring refractory and heat-resistant castable outside the double-ring circular full-water-cooling central cylinder to form a cylinder structure, the groove type track is reserved out at the inner wall of cylinder structure, and there is light insulation material winding further to improve the heat preservation effect the outside of cylinder structure, and the combustor is arranged in the cylinder structure. Compared with the conventional D-shaped boiler combustion cylinder, the structure has the following advantages: firstly, because the double-ring circular full water-cooling central cylinder is a circular cylinder which is directly drawn inwards and outwards by the circulating water pipe, the pipe-letting treatment in various shapes is not needed, the structure is simple, and the manufacturing time and the manufacturing cost are saved; and secondly, water is cooled in the cylindrical structure, and castable is laid on the inner wall of the central cylinder, so that the temperature of the cylindrical structure is lower when the burner is ignited, the cylindrical structure is not easy to burn, and the service life of the cylindrical structure is effectively ensured. Through the technical innovation, the manufacturing and operating cost of the boiler can be obviously reduced, and the market competitiveness of boiler products is improved.
The front flat steel is welded between two adjacent circulating water pipes of the front cylindrical pipe bundle, the rear flat steel is welded between two adjacent circulating water pipes of the rear cylindrical pipe bundle to form a cylindrical water-cooling membrane wall, the straight-rod grab nails and the special-shaped grab nails are firmly connected with the refractory and heat-resistant castable into a whole, the thickness of the castable is not more than 250mm, and the part of the cylinder structure outside the furnace body is wound by the light heat-insulating material.
The combustor can move back and forth in the groove-shaped rail arranged on the inner wall of the cylindrical structure, and the length of the rear end of the combustor extending into the hearth can be further adjusted under the condition that the air injection amount of the combustor is certain, namely the depth of the injected flame in the hearth can be adjusted; the combustor designs the soft connection structure of three sections, and inside last festival stretched into furnace to through two telescopic adjusting rod adjustable last festival's jet flame's direction, and have the effect of location combustor position in cylinder structure. Thereby improving the matching degree of the burner and boilers with different models and sizes, and increasing the evaporation capacity of the boiler compared with the traditional D-shaped boiler burner.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view of the cylindrical structure of FIG. 1 at the front water collection canister;
FIG. 4 is a side view of a front profile staple on the front water collection canister of FIG. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in figures 1-4, the natural gas fired boiler comprising a double-ring circular full water-cooling central cylinder for a burner comprises a boiler body 1 with a water-cooling membrane wall, an upper boiler cylinder 2 is arranged at the upper part of the left side of the boiler body 1, a lower boiler cylinder 3 is arranged at the lower part of the left side of the boiler body 1, a convection tube bundle 4 is arranged between the lower part of the upper boiler cylinder 2 and the upper part of the lower boiler cylinder 3, a round hole 6 is arranged on a front side water-cooling membrane wall 5 of the boiler body 1, a part of circulating water pipes in the front side water-cooling membrane wall 5 around the round hole 6 are bent forwards to form a front cylindrical tube bundle 7, the front end of the front cylindrical tube bundle 7 is connected with a circular front water collecting cylinder 8, the other part of circulating water pipes in the front side water-cooling membrane wall 5 around the round hole 6 are bent backwards to form a rear cylindrical tube bundle 9, the rear end of the rear cylindrical tube bundle 9 is connected with a circular rear water collecting cylinder 10, the front cylindrical tube bundle 7, the front cylindrical tube bundle 8 and the front water collecting cylinder bundle 8, The central lines of the rear cylindrical tube bundle 9, the rear water collecting barrel 10 and the circular hole 6 are superposed, a front flat steel is welded between two adjacent circulating water pipes of the front cylindrical tube bundle 7, a rear flat steel is welded between two adjacent circulating water pipes of the rear cylindrical tube bundle 9, and refractory and heat-resistant castable materials 11 are poured on the inner and outer rings of the front cylindrical tube bundle 7, the front flat steel, the front water collecting barrel 8, the rear cylindrical tube bundle 9, the rear flat steel and the rear water collecting barrel 10 to form a cylindrical structure; the burners 12 are arranged inside the cylindrical structure and inject flames through the circular holes 6 towards the inside of the furnace 13.
A plurality of straight-bar nails 14 are uniformly welded on the inner circumference of the front water collecting cylinder 8, the outer circumference of the front water collecting cylinder 8, the inner circumference of the rear water collecting cylinder 10 and the outer circumference of the rear water collecting cylinder 10, and each straight-bar nail 14 is arranged along the radial direction of the water collecting cylinder;
the front side of the circumference of the front water collecting cylinder 8 is welded with a front short section flat steel 15, the rear side of the circumference of the rear water collecting cylinder 10 is welded with a rear short section flat steel, and the inner and outer side surfaces of the front flat steel, the inner and outer side surfaces of the rear flat steel, the front short section flat steel 15 and the rear short section flat steel are all welded with special-shaped grabbing nails 16 (L-shaped);
both the straight-bar staples 14 and the profiled staples 16 are cast inside the cylindrical structure and form an integral structure with the refractory castable material 11.
The combustor 12 is composed of three sections, the cylindrical shells of two adjacent sections are coaxially connected through a flexible connecting pipe 17, a plurality of groove-shaped rails 18 are arranged on the inner wall of the cylindrical structure along the axis direction, rollers 19 rolling along the groove-shaped rails 18 are arranged on the outer circle of the cylindrical shell of the combustor 12, and a heat-insulating material 20 in sliding fit with the inner wall of the cylindrical structure and the groove-shaped rails 18 is arranged on the outer circumference of the rear side of one section in the middle of the combustor 12.
The pre-buried convex high temperature resistant steel sheet connecting block 21 that makes progress that has of cylinder structure rear end, be equipped with two telescopic adjusting rod 22 between the rear side wall of high temperature resistant steel sheet connecting block 21 and the rearmost of combustor 12 one section, the upper end of two telescopic adjusting rod 22 and high temperature resistant steel sheet connecting block 21 are through last universal hinged joint, universal hinged joint is passed through down on the lower extreme of two telescopic adjusting rod 22 and the rearmost one section upper portion of combustor 12, two telescopic adjusting rod 22 all incline to set up, two telescopic adjusting rod 22 are about the central line bilateral symmetry setting of cylinder structure.
The telescopic adjusting rod 22 is a threaded rod which comprises an internal threaded sleeve and extends into the internal threaded sleeve and is in threaded connection with the internal threaded sleeve.
In the invention, circulating water pipes are respectively extended inwards (backwards) and outwards (forwards) from a water-cooling film type wall 5 at the front side of a furnace body 1 to form a circular water-cooling channel (a back cylindrical pipe bundle 9 and a front cylindrical pipe bundle 7), a rear water collecting cylinder 10 is arranged at the rear end part of the rear cylindrical tube bundle 9, a front water collecting cylinder 8 is arranged at the front end part of the front cylindrical tube bundle 7, thus, a double-ring circular full water-cooling central cylinder is formed, the process of arranging a steel plate behind the pipe for perforating and welding is eliminated, and according to the diameter of the combustor 12, pouring refractory and heat-resistant castable 11 outside the double-ring circular full-water-cooling central cylinder to form a cylinder structure, during the pouring operation, the groove-shaped rail 18 is reserved on the inner wall of the cylinder structure, the light heat-insulating material is wound outside the cylinder structure to further improve the heat-insulating effect, and the combustor 12 is arranged in the cylinder structure. Compared with the conventional D-shaped boiler combustion cylinder, the structure has the following advantages: firstly, because the double-ring circular full water-cooling central cylinder is a circular cylinder which is directly drawn inwards and outwards by the circulating water pipe, the pipe-letting treatment in various shapes is not needed, the structure is simple, and the manufacturing time and the manufacturing cost are saved; secondly, the inside water cooling that has of cylindrical structure, the core barrel inner wall lays the castables, therefore when combustor 12 igniteed operation, the temperature of cylindrical structure is lower, and the cylindrical structure is difficult for being burnt out, has guaranteed the life of cylindrical structure effectively. Through the technical innovation, the manufacturing and operating cost of the boiler can be obviously reduced, and the market competitiveness of boiler products is improved.
The front flat steel is welded between two adjacent circulating water pipes of the front cylindrical pipe bundle 7, the rear flat steel is welded between two adjacent circulating water pipes of the rear cylindrical pipe bundle 9 to form a cylindrical water-cooling membrane wall, the straight-rod grab nails 14 and the special-shaped grab nails 16 play a role of being firmly connected with the refractory and heat-resistant castable 11 into a whole, the thickness of the castable is not more than 250mm, and the part of the cylinder structure outside the furnace body 1 is wound by the light heat-insulating material.
The combustor 12 can move back and forth in a groove-shaped rail 18 arranged on the inner wall of the cylinder structure, and under the condition that the air injection amount of the combustor 12 is certain, the length of the rear end of the combustor 12 extending into the hearth 13 can be further adjusted, namely the depth of the injected flame in the hearth 13 is adjusted; the burner 12 is designed into a three-section soft connection structure, the last section extends into the hearth 13, the direction of the spraying flame of the last section can be adjusted through two telescopic adjusting rods 22, and the burner 12 has the function of positioning the burner 12 in the cylinder structure. Thereby improving the matching degree of the burner 12 and boilers with different models and sizes, and increasing the evaporation capacity of the boiler compared with the traditional D-shaped boiler burner 12.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. Contain the natural gas boiler that fires of the full water-cooling center section of thick bamboo of dicyclo circular for the combustor, the boiler include the furnace body of water-cooling diaphragm type wall, furnace body left side upper portion is equipped with the drum, furnace body left side lower part is equipped with down the drum, upward is equipped with convection bank, its characterized in that between drum lower part and the lower drum upper portion: a round hole is arranged on the front water-cooling film type wall of the furnace body, a part of circulating water pipes in the front water-cooling film type wall around the round hole are bent forwards to form a front cylindrical pipe bundle, the front end of the front cylindrical pipe bundle is connected with an annular front water collecting cylinder, the other part of circulating water pipes in the front water-cooling film type wall around the round hole are bent backwards to form a rear cylindrical pipe bundle, the rear end of the rear cylindrical pipe bundle is connected with an annular rear water collecting cylinder, the central lines of the front cylindrical pipe bundle, the front water collecting cylinder, the rear cylindrical pipe bundle, the rear water collecting cylinder and the round hole are superposed, a front flat steel is welded between two adjacent circulating water pipes of the front cylindrical pipe bundle, a rear flat steel is welded between two adjacent circulating water pipes of the rear cylindrical pipe bundle, the front cylindrical pipe bundle, the inner and outer rings of the front flat steel, the front water collecting barrel, the rear cylindrical pipe bundle, the rear flat steel and the rear water collecting barrel are all cast with refractory and heat-resistant casting materials to form a cylindrical structure; the burner is arranged in the cylinder structure and penetrates through the round hole to spray flame to the interior of the hearth;
the combustor is composed of three sections, two adjacent sections of cylindrical shells are coaxially connected through a flexible connecting pipe, a plurality of groove-shaped rails are arranged on the inner wall of the cylindrical structure along the axis direction, rollers rolling along the groove-shaped rails are arranged on the outer circle of the cylindrical shell of the combustor, and heat-insulating materials in sliding fit with the inner wall of the cylindrical structure and the groove-shaped rails are arranged on the outer circumference of the rear side of the middle section of the combustor;
the pre-buried convex high temperature resistant steel sheet connecting block that makes progress that has of cylinder structure rear end is equipped with two telescopic adjusting rods between the rear side wall of high temperature resistant steel sheet connecting block and the rearmost of combustor one section, the upper end and the high temperature resistant steel sheet connecting block of two telescopic adjusting rods pass through universal hinged joint, universal hinged joint is passed through down on the lower extreme of two telescopic adjusting rods and the rearmost one section upper portion of combustor, two telescopic adjusting rods all incline to set up, two telescopic adjusting rods set up about cylinder structure's central line bilateral symmetry.
2. The natural gas-fired boiler comprising a double-ring circular water-cooled central tube for a burner as claimed in claim 1, wherein: a plurality of straight rod grabbing nails are uniformly welded on the inner circumference of the front water collecting cylinder, the outer circumference of the front water collecting cylinder, the inner circumference of the rear water collecting cylinder and the outer circumference of the rear water collecting cylinder, and each straight rod grabbing nail is arranged along the radial direction of the water collecting cylinder;
a plurality of front short section flat steels are welded on the front side of the circumference of the front water collecting cylinder, a plurality of rear short section flat steels are welded on the rear side of the circumference of the rear water collecting cylinder, and special-shaped grabbing nails are welded on the inner and outer side surfaces of the front flat steel, the inner and outer side surfaces of the rear flat steel, the front short section flat steel and the rear short section flat steel;
the straight rod grab nail, the front short section flat steel, the rear short section flat steel and the special-shaped grab nail are all poured into the cylinder structure and form an integral structure with the refractory and heat-resistant pouring material.
3. The natural gas-fired boiler comprising a double-ring circular water-cooled central tube for a burner as claimed in claim 1 or 2, wherein: the telescopic adjusting rod comprises an internal thread sleeve and a screw rod which extends into the internal thread sleeve and is in threaded connection with the internal thread sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010906928.1A CN111998326B (en) | 2020-09-02 | 2020-09-02 | Natural gas fired boiler with double-ring circular full water-cooling central cylinder for burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010906928.1A CN111998326B (en) | 2020-09-02 | 2020-09-02 | Natural gas fired boiler with double-ring circular full water-cooling central cylinder for burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111998326A CN111998326A (en) | 2020-11-27 |
| CN111998326B true CN111998326B (en) | 2022-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010906928.1A Active CN111998326B (en) | 2020-09-02 | 2020-09-02 | Natural gas fired boiler with double-ring circular full water-cooling central cylinder for burner |
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| CN (1) | CN111998326B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109806A (en) * | 1990-10-15 | 1992-05-05 | The Marley Company | Premix boiler construction |
| CN202328154U (en) * | 2011-11-18 | 2012-07-11 | 哈尔滨锅炉厂有限责任公司 | Novel nozzle tube panel device of supercritical cyclone burners |
| CN102777882A (en) * | 2012-07-05 | 2012-11-14 | 哈尔滨锅炉厂有限责任公司 | Spray nozzle tube panel device of four-wall tangent circle direct current combustor of supercritical boiler and method |
| CN205782878U (en) * | 2016-06-15 | 2016-12-07 | 河南省锅炉压力容器安全检测研究院 | Circulated at low velocity fluidized-bed combustion boiler membrane wall chamber structure |
| CN106871121A (en) * | 2017-04-01 | 2017-06-20 | 上海钜荷热力技术有限公司 | Multisection type all-premixing burner with smoke reflux device |
| CN207036458U (en) * | 2017-08-23 | 2018-02-23 | 哈尔滨锅炉厂有限责任公司 | A kind of supercritical CO 2 combined-circulation once-through boiler experimental rig for being disposed with gas burner |
| WO2018129610A1 (en) * | 2017-01-13 | 2018-07-19 | Mehrzad Movassaghi | Scalable pulse combustor |
| CN209655769U (en) * | 2019-03-05 | 2019-11-19 | 三一汽车制造有限公司 | A kind of burner driving means and bituminous mixing plant |
-
2020
- 2020-09-02 CN CN202010906928.1A patent/CN111998326B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109806A (en) * | 1990-10-15 | 1992-05-05 | The Marley Company | Premix boiler construction |
| CN202328154U (en) * | 2011-11-18 | 2012-07-11 | 哈尔滨锅炉厂有限责任公司 | Novel nozzle tube panel device of supercritical cyclone burners |
| CN102777882A (en) * | 2012-07-05 | 2012-11-14 | 哈尔滨锅炉厂有限责任公司 | Spray nozzle tube panel device of four-wall tangent circle direct current combustor of supercritical boiler and method |
| CN205782878U (en) * | 2016-06-15 | 2016-12-07 | 河南省锅炉压力容器安全检测研究院 | Circulated at low velocity fluidized-bed combustion boiler membrane wall chamber structure |
| WO2018129610A1 (en) * | 2017-01-13 | 2018-07-19 | Mehrzad Movassaghi | Scalable pulse combustor |
| CN106871121A (en) * | 2017-04-01 | 2017-06-20 | 上海钜荷热力技术有限公司 | Multisection type all-premixing burner with smoke reflux device |
| CN207036458U (en) * | 2017-08-23 | 2018-02-23 | 哈尔滨锅炉厂有限责任公司 | A kind of supercritical CO 2 combined-circulation once-through boiler experimental rig for being disposed with gas burner |
| CN209655769U (en) * | 2019-03-05 | 2019-11-19 | 三一汽车制造有限公司 | A kind of burner driving means and bituminous mixing plant |
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| Publication number | Publication date |
|---|---|
| CN111998326A (en) | 2020-11-27 |
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