CN215597235U

CN215597235U - Biomass particle steam and hot water dual-purpose boiler

Info

Publication number: CN215597235U
Application number: CN202122292081.5U
Authority: CN
Inventors: 李宗华; 李鲁信
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-01-21
Anticipated expiration: 2031-09-23

Abstract

The utility model provides a living beings granule steam, dual-purpose boiler of hot water, including the combustor, install the air-blower outside the combustor, the air-blower is through the air pipe from the grate in the blast air of going into down to the combustor, the combustor wall is jacket structure, the combustor passes through transition section of thick bamboo and connects straight cylindric combustion chamber, straight cylindric combustion chamber is sandwich structure, the water intercommunication in the jacket in intermediate layer and the combustor wall, communicate through many heat transfer medium pipes between the intermediate layer of straight cylindric combustion chamber and the hydrophily of heat transfer chimney, the product exit linkage of boiler is on the heat transfer chimney, be provided with a plurality of baffling formula heat transfer chambers between straight cylindric combustion chamber and the heat transfer chimney, it has many heat exchange tubes to distribute around in straight cylindric combustion chamber, the both ends of each heat exchange tube communicate with the intermediate layer on the straight cylindric combustion chamber respectively, two adjacent heat exchange tube cross distributions. The heat exchange capacity of the boiler is further improved.

Description

Biomass particle steam and hot water dual-purpose boiler

Technical Field

The utility model relates to a biomass boiler, in particular to a biomass particle fuel steam and hot water dual-purpose furnace, and belongs to the technical field of biomass boilers.

Background

The biomass boiler does not consume fossil fuel, mainly takes agriculture, forestry and waste as raw materials, and is prepared into a novel clean fuel which is formed (such as blocks, particles and the like) and can be directly combusted through the processes of crushing, mixing, extruding, drying and the like. China is a big agricultural country, in the agricultural production process, after crops such as wheat, corn and rice are harvested, the number of residual inedible straws is very large, the source of biomass fuel is reliable, and the application of the existing biomass fuel boiler is greatly developed. Chinese patent application No. 2020226512882 discloses a straight-tube biomass boiler, which can be used as a steam and hot water dual-purpose boiler, wherein the boiler adopts an external burner with an interlayer, a straight-tube combustion chamber is connected through a transition cylinder, the straight-tube combustion chamber is connected with a heat exchange chimney through a plurality of heat exchange medium pipes, the heat exchange medium pipes are communicated with water in the interlayer of the straight-tube combustion chamber and the heat exchange chimney, a plurality of baffling heat exchange chambers are arranged between the straight-tube combustion chamber and the heat exchange chimney, fuel gas enters the straight-tube combustion chamber from the burner for combustion, and then enters the heat exchange chimney at the upper part through the plurality of baffling heat exchange chambers to complete the heating of the water, the water firstly enters the water interlayer of the burner through a water pump, the water interlayer of the burner is communicated with the water interlayer of the straight-tube combustion chamber, the water of the heat exchange chimney is communicated with the straight-tube combustion chamber, the heat exchange chimney is also connected with a straight water supply path of the water pump, according to the actual operation condition, water can be directly added into the heat exchange chimney. The ash in the boiler flue gas is more completely combusted, less soot enters a combustion chamber, and during use, the improvement and optimization can be found, mainly the heat exchange capability can be improved, and the safety can be higher.

Disclosure of Invention

The utility model aims to overcome the problems of the existing biomass particle boiler and provide a biomass particle steam and hot water dual-purpose boiler.

In order to realize the purpose of the utility model, the following technical scheme is adopted: a biomass particle steam and hot water dual-purpose boiler comprises a burner, wherein a feeding auger is arranged at the upper part of the burner, a feed inlet of the feeding auger is positioned in a fuel chamber, a grate is arranged in the burner, an ash removing port is formed in the burner below the grate, a blower is arranged outside the burner, the blower blows primary air into the burner from the lower part of the grate through a primary air pipe, the wall of the burner is of a jacket structure, water is communicated with the jacket, the burner is connected with a straight-barrel-shaped combustion chamber through a transition cylinder, the straight-barrel-shaped combustion chamber is of a sandwich structure, the sandwich is communicated with the water in the jacket in the wall of the burner, at least three secondary air pipes are arranged on the wall of the transition cylinder, the secondary air pipes are communicated with the blower, a heat exchange chimney is arranged above the straight-barrel-shaped combustion chamber, the sandwich of the straight-barrel-shaped combustion chamber is communicated with the water medium of the heat exchange chimney through a plurality of heat exchange medium pipes, and a product outlet of the boiler is connected to the heat exchange chimney, the heat exchange chimney is connected with the exhanst gas outlet, is connected with the draught fan on the exhanst gas outlet, straight cylindric combustion chamber and heat exchange chimney between be provided with a plurality of baffling formula heat transfer chambers, seal around a plurality of baffling formula heat transfer chambers, two adjacent heat transfer indoor portions communicate, it has many heat exchange tubes to distribute around in straight cylindric combustion chamber, the both ends of each heat exchange tube communicate with the intermediate layer on the straight cylindric combustion chamber respectively, two adjacent heat exchange tube cross distributions.

Further, the method comprises the following steps of; the inner cavity of the jacket in the horizontal direction at the upper end of the burner is high at one end and low at the other end, and the higher end is connected with a pipeline communicated with the heat exchange chimney.

Further, the method comprises the following steps of; dispose assembled furnace gate on the casing of combustor, can dismantle on the casing and be connected with fixed cover frame, a plurality of concentric fixed axle sleeves of fixedly connected with on fixed cover frame, wherein terminal fixed axle sheathes in the hole and be the blind hole, can dismantle on the furnace gate and be connected with movable cover frame, a plurality of concentric movable sleeves of fixedly connected with on the movable cover frame, the axle passes the movable sleeve from the fixed cover of head end and wears to terminal movable sleeve, the fixed cover of head end, the axle at movable sleeve rear portion is provided with the nut, the position processing that has the nut on the axle has the screw thread, the nut connects soon epaxially and pushes up and establish the end at the movable sleeve.

Further, the method comprises the following steps of; the furnace door is provided with an air port, an adjustable air plate is arranged on the air port in a matched mode, an arc-shaped seam is formed in the adjustable air plate, a bolt penetrates through the arc-shaped seam, the bolt is arranged on the furnace door through a threaded connector, a handle is hinged to the adjustable air plate, and a handle clamping groove is fixedly connected to the shell.

Further, the method comprises the following steps of; a ball is placed in a blind hole of a fixed sleeve at the tail end, a shaft is in contact with the ball, the head end of the shaft is a polygonal cylinder, a linkage sheet is detachably and fixedly connected to a furnace door, a polygonal hole matched with the polygonal cylinder is formed in the linkage sheet, and the polygonal cylinder is located in the polygonal hole.

The utility model has the positive and beneficial technical effects that: the heat exchange tube is additionally arranged in the straight cylindrical combustion chamber of the boiler, the heat exchange capacity is further improved, the inner cavity of the jacket in the horizontal direction of the upper end of the burner is high in one end and low in one end, the safety problem caused by accumulation of gas on the upper portion of the jacket can be avoided when the straight cylindrical combustion chamber is used as a steam boiler, all assembled furnace doors are assembled by hardware without re-welding, standardized production can be carried out, the requirement on the installation skill of workers is low, the straight cylindrical combustion chamber can be adjusted and replaced in the using process, the matching precision is high, balls and shafts are combined into point contact, the resistance is small during rotation, the rotation resistance can be adjusted by nuts, the furnace doors can be used for observing fire, and the effects of furnace door filling, slag discharging, air volume adjusting and the like can be opened.

Drawings

Fig. 1 is a schematic view of the overall structure of the interior of the present invention.

Fig. 2 is a schematic view at the heat exchange chimney.

FIG. 3 is a schematic view of a straight can combustor with the straight can removed.

FIG. 4 is a schematic view of the jacket cavity in a horizontal orientation at the upper end of the burner.

Figure 5 is a schematic view of a furnace door.

Figure 6 is a schematic view at the balls on the oven door.

Detailed Description

In order to more fully explain the implementation of the present invention, examples of the implementation of the present invention are provided. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.

The utility model is explained in further detail in connection with the accompanying drawings, in which: 1: a fuel chamber; 2: feeding the auger; 3: a combustion engine; 4: an assembled oven door; 5: a furnace mouth; 6: a grate; 7: a blower; 8: a transition cylinder; 9: a straight can combustor; 10: a heat exchange pipe; 11: a heat exchange medium pipe; 12: a heat exchange chimney; 13: an induced draft fan; 14: a first smoke box; 15: a second smoke box; 16: a smoke pipe; 17: a pipeline communicated with the heat exchange chimney; 301: a low end; 302: a high end; 303: the pipe opening is communicated with the heat exchange chimney; 401: a furnace door; 403: fixing the sleeve frame; 404: a fixed sleeve at the head end; 405: a fixed sleeve at the tail end; 406: a movable sleeve A; 407: a movable sleeve B; 408: a nut; 409: a movable sleeve frame; 410: a tuyere; 411: a bolt; 412: an adjustable wind plate; 413: an arc-shaped seam; 414: a handle; 415: a handle slot; 416: blind holes; 417: a ball; 418: a shaft; 419: a linkage piece; 420: a polygonal cylinder.

As shown in the attached drawing, a biomass particle steam and hot water dual-purpose boiler comprises a burner 3, the upper part of the burner is provided with a feeding auger 2 dragon, a feeding port of a feeding auger is positioned in a fuel chamber 1, a fire grate 6 is arranged in the burner, an ash cleaning port is arranged on the burner under the fire grate, a blower 7 is arranged outside the burner, a primary air is blown into the burner from the fire grate through a primary air pipe, the wall of the burner is of a jacket structure, water is communicated in the jacket, the burner is connected with a straight-barrel-shaped combustion chamber 9 through a transition barrel 7, the straight-barrel-shaped combustion chamber is of an interlayer structure, the interlayer is communicated with the water in the jacket in the wall of the burner, at least three secondary air pipes are arranged on the wall of the transition barrel, the secondary air pipes are communicated with the blower, and the structure in the straight-barrel-type biomass boiler disclosed in the Chinese patent application No. 2020226512882 is the above structure.

A heat exchange chimney 12 is arranged above the straight-barrel-shaped combustion chamber, an interlayer of the straight-barrel-shaped combustion chamber is communicated with a water medium of the heat exchange chimney through a plurality of heat exchange medium pipes, a schematic diagram of a heat exchange chimney is shown in figure 2, two smoke boxes, namely a first smoke box 14 and a second smoke box 15, are arranged at two ends of the heat exchange chimney, an interlayer is arranged at the smoke box, the heat exchange medium pipe positioned below the smoke box is connected to the interlayer, the two smoke boxes are connected through a smoke pipe 16, smoke runs in the smoke pipe, water is arranged outside the smoke pipe, the water outside the smoke pipe is communicated with the water in the interlayer at the smoke box, a product outlet of the boiler is connected to the heat exchange chimney, the heat exchange chimney is connected with a smoke outlet, an induced draft fan is connected to the smoke outlet, a plurality of baffling heat exchange chambers are arranged between the straight-barrel-shaped combustion chamber and the heat exchange chimney, the heat exchange medium pipes can be positioned on the wall of the baffling heat exchange chambers and can also pass through the baffling heat exchange chambers up and down, in fig. 1, the direction indicated by the arrow is the flow direction of flue gas, the number of the baffling heat exchange chambers can be increased or decreased according to the design, the periphery of a plurality of baffling heat exchange chambers is sealed, the interiors of two adjacent heat exchange chambers are communicated, a plurality of heat exchange tubes 10 are distributed in the front and back of the straight cylindrical combustion chamber, two ends of each heat exchange tube are respectively communicated with the interlayer on the straight cylindrical combustion chamber, two adjacent heat exchange tubes are distributed in a cross way, and the cross distribution is shown in fig. 3.

The inner cavity of the jacket in the horizontal direction at the upper end of the burner is high at one end and low at the other end, and the higher end is connected with a pipeline communicated with the heat exchange chimney. 17 is a pipeline communicated with the heat exchange chimney, and 303 is a pipeline opening communicated with the heat exchange chimney; FIG. 4 is a schematic view of the inner cavity of the jacket in the horizontal direction of the upper end of the burner, 301 being the lower end; 302 is high-end, the reason of this kind of design lies in originally only the combustor intermediate layer is connected to the water pipeline of straight cylindric combustor intermediate layer, be water in the straight cylindric combustor jacket during operation, when using as steam boiler, the gas in the jacket of combustor upper end receives the water seal effect and can't discharge, the easy accumulation leads to the fact the pressure to rise, has the hidden danger of explosion, when adopting above-mentioned structure as steam boiler operation, because this position has the pipeline that communicates with heat transfer chimney, so the gas can flow to the heat transfer chimney along the pipeline, can not cause the pressure in the jacket to rise, adopt one end height, the design that one end is low makes gas flow to higher one end, more do benefit to gaseous emission.

A furnace door is arranged on the shell of the burner and comprises a furnace mouth 5, a fixed sleeve frame 403 is detachably connected on the furnace mouth, a plurality of concentric fixed shaft sleeves are fixedly connected on the fixed sleeve frame, in the embodiment, two fixed shaft sleeves are provided, namely a fixed sleeve 404 at the head end and a fixed sleeve 405 at the tail end, a movable sleeve frame 409 is detachably connected on the furnace door, a plurality of concentric movable sleeves are fixedly connected on the movable sleeve frame, in the embodiment, two movable sleeves are respectively a movable sleeve A406 and a movable sleeve B407, a shaft 418 penetrates through the movable sleeve from a fixed sleeve 404 at the head end to the movable sleeve 405 at the tail end, a fixed sleeve upper hole at the tail end is a blind hole 416, a ball 417 is arranged in the blind hole of the fixed sleeve at the tail end, the shaft is contacted with the ball, the fixed sleeve at the head end, a nut 408 is arranged on the shaft at the rear part of the movable sleeve A, a thread is processed at the part of the shaft with the nut, and the nut is screwed on the shaft and is propped against the tail end of the movable sleeve. The head end of the shaft 418 is a polygonal column 420, a linkage plate 419 is detachably and fixedly connected to the oven door, a polygonal hole matched with the polygonal column is formed in the linkage plate, and the polygonal column is located in the polygonal hole.

An air port 410 is formed in the furnace door, an adjustable air plate 412 is arranged on the air port in a matched mode, an arc-shaped seam 413 is formed in the adjustable air plate, a bolt 411 penetrates through the arc-shaped seam and is connected to the furnace door through threads, a handle 414 is hinged to the adjustable air plate, and a handle clamping groove 415 is fixedly connected to the furnace door.

The detachable connection in the furnace door can adopt the matching connection of bolts and nuts. The assembly of the oven door is a conventional operation.

After the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the utility model, and it is intended that all simple modifications, equivalent changes and modifications made to the above embodiments based on the technical spirit of the present invention shall fall within the technical scope of the present invention, and the present invention shall not be limited to the embodiments illustrated in the description.

Claims

1. A biomass particle steam and hot water dual-purpose boiler comprises a burner, wherein a feeding auger is arranged on the upper part of the burner, a feed inlet of the feeding auger is positioned in a fuel chamber, a grate is arranged in the burner, an ash removing port is formed in the burner below the grate, a blower is arranged outside the burner, the blower blows primary air into the burner from the grate through a primary air pipe, the wall of the burner is of a jacket structure, water is communicated with the jacket, the burner is connected with a straight-barrel-shaped combustion chamber through a transition cylinder, the straight-barrel-shaped combustion chamber is of a sandwich structure, the sandwich layer is communicated with the water in the jacket in the wall of the burner, at least three secondary air pipes are arranged on the wall of the transition cylinder, the secondary air pipes are communicated with the blower, a heat exchange chimney is arranged above the straight-barrel-shaped combustion chamber, and the water media of the straight-barrel-shaped combustion chamber are communicated through a plurality of heat exchange medium pipes, the product exit linkage of boiler is on the heat transfer chimney, and the heat transfer chimney is connected with the exhanst gas outlet, is connected with the draught fan on the exhanst gas outlet, straight cylindric combustion chamber and heat transfer chimney between be provided with a plurality of baffling formula heat transfer chambers, seal around a plurality of baffling formula heat transfer chambers, two adjacent heat transfer indoor portions intercommunication, its characterized in that: a plurality of heat exchange tubes are distributed in the front and the back of the straight cylindrical combustion chamber, two ends of each heat exchange tube are respectively communicated with the interlayer on the straight cylindrical combustion chamber, and two adjacent heat exchange tubes are distributed in a crossed manner.

2. The biomass particle steam and hot water dual-purpose boiler as claimed in claim 1, characterized in that: the inner cavity of the jacket in the horizontal direction at the upper end of the burner is high at one end and low at the other end, and the higher end is connected with a pipeline communicated with the heat exchange chimney.

3. The biomass particle steam and hot water dual-purpose boiler as claimed in claim 1, characterized in that: dispose assembled furnace gate on the casing of combustor, can dismantle on the casing and be connected with fixed cover frame, a plurality of concentric fixed axle sleeves of fixedly connected with on fixed cover frame, wherein terminal fixed axle sheathes in the hole and be the blind hole, can dismantle on the furnace gate and be connected with movable cover frame, a plurality of concentric movable sleeves of fixedly connected with on the movable cover frame, the axle passes the movable sleeve from the fixed cover of head end and wears to terminal movable sleeve, the fixed cover of head end, the axle at movable sleeve rear portion is provided with the nut, the position processing that has the nut on the axle has the screw thread, the nut connects soon epaxially and pushes up and establish the end at the movable sleeve.

4. The biomass particle steam and hot water dual-purpose boiler as claimed in claim 3, characterized in that: the furnace door is provided with an air port, an adjustable air plate is arranged on the air port in a matched mode, an arc-shaped seam is formed in the adjustable air plate, a bolt penetrates through the arc-shaped seam, the bolt is arranged on the furnace door through a threaded connector, a handle is hinged to the adjustable air plate, and a handle clamping groove is fixedly connected to the shell.

5. The biomass particle steam and hot water dual-purpose boiler as claimed in claim 3, characterized in that: a ball is placed in a blind hole of a fixed sleeve at the tail end, a shaft is in contact with the ball, the head end of the shaft is a polygonal cylinder, a linkage sheet is detachably and fixedly connected to a furnace door, a polygonal hole matched with the polygonal cylinder is formed in the linkage sheet, and the polygonal cylinder is located in the polygonal hole.