CN215864041U

CN215864041U - Biomass briquette boiler

Info

Publication number: CN215864041U
Application number: CN202122292070.7U
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: 2022-02-18
Anticipated expiration: 2031-09-23

Abstract

The utility model provides a biomass briquette fuel boiler, includes the combustor, the combustor wall is jacket structure, and it has water to lead to in the clamp cover, the combustor pass through transition section of thick bamboo and connect straight cylindric combustion chamber, straight cylindric combustion chamber is sandwich structure, through many heat transfer medium pipe intercommunications 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, the heat transfer chimney is connected with the exhanst gas outlet, be connected with the draught fan on the exhanst gas outlet, be provided with a plurality of baffling formula heat transfer chambers between straight cylindric combustion chamber and the heat transfer chimney, the combustor wall about the size the same, be connected with the decurrent inlet pipe of slope in the upper end of combustor, 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 boiler can burn massive biomass fuel.

Description

Biomass briquette boiler

Technical Field

The utility model relates to a biomass boiler, in particular to a biomass briquette boiler, and belongs to the technical field of biomass boilers.

Background

Chinese patent application No. 2020226512882 discloses a straight-tube biomass boiler, which adopts an external burner with an interlayer, fuel enters the burner through a feeding auger in a fuel chamber, enters a straight-tube combustion chamber through a transition cylinder after being ignited in the burner, 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, then enters the heat exchange chimney at the upper part through a plurality of baffling heat exchange chambers to finish heating 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 water pump for supplying a straight water path, 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, and the ash entering a combustion chamber is little, but the combustor of the boiler is provided with a feeding auger, and a combustion chamber adopts a conical hopper, so that the method is not problematic for biomass particle fuel, but in practical use, when biomass molding fuel (such as massive fuel) is used in a client use scene, the biomass molding fuel cannot be used on the boiler, the use scene of the boiler is limited, and in addition, the biomass particle fuel needs to be continuously optimized along with the application of equipment.

Disclosure of Invention

The utility model aims to overcome the problems of the existing biomass boiler and provide a biomass briquette boiler.

In order to realize the purpose of the utility model, the following technical scheme is adopted: a biomass briquette boiler comprises a burner, a grate is arranged in the burner, an ash cleaning port is arranged on the burner below the grate, a blower is arranged outside the burner, primary air is blown 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 introduced into 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, the sandwich layer 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, a product outlet of the boiler is connected onto the heat exchange chimney, the heat exchange chimney is connected with a flue gas outlet, and the flue gas outlet is connected with an induced draft fan, the combustor is characterized in that a plurality of baffling heat exchange chambers are arranged between the straight cylindrical combustion chamber and the heat exchange chimney, the periphery of each baffling heat exchange chamber is sealed, the adjacent two heat exchange chambers are communicated, the wall of the combustor is same in size from top to bottom, the upper end of the combustor is connected with an inclined feeding pipe, the downward feeding pipe is connected to the upper end of the combustor, a plurality of heat exchange pipes are distributed in the straight cylindrical combustion chamber from front to back, two ends of each heat exchange pipe are communicated with an interlayer on the straight cylindrical combustion chamber respectively, and the two adjacent heat exchange pipes are distributed in a crossed mode.

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 the furnace gate on the casing of combustor, the furnace gate be the assembled furnace gate, 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: compared with the existing boiler, the biomass fuel boiler can burn massive biomass fuel, the using scene of the biomass fuel boiler is effectively expanded, the heat exchange capacity in the straight cylindrical combustion chamber is higher, the biomass fuel boiler is used as a steam boiler, the safety is higher, all the assembled boiler doors are assembled by hardware without welding, standardized production can be carried out, the requirement on the installation skill of workers is low, the biomass fuel boiler is adjustable and replaceable in the using process, the matching precision is high, balls and shafts are combined into point contact, the resistance is small in rotation, the rotation resistance can be adjusted through nuts, the boiler doors can observe fire, the filler of the boiler doors can be opened, the slag is discharged, the air volume is adjusted, and other effects are achieved.

Drawings

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

Fig. 2 is a schematic front view of the present invention.

Fig. 3 is a rear view schematic of the present invention.

FIG. 4 is a schematic view of a portion of a straight can combustor removed.

Fig. 5 is a schematic view with a portion of the housing removed from the side.

Figure 6 is a schematic view of a furnace door.

Figure 7 is a schematic view of a bead on the oven door.

FIG. 8 is a schematic view of the jacket cavity in a horizontal orientation at the upper end of the burner.

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 combustion engine; 101: a low end; 102: a high end; 103: the pipe opening is communicated with the heat exchange chimney; 2: a feed pipe; 3: a blower; 4: an assembled oven door; 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; 5: a furnace mouth; 6: a grate; 7: a transition cylinder; 8: a straight form combustion can; 9: a heat exchange pipe; 10: a heat exchange medium pipe; 11: a heat exchange chimney; 12: a smoke outlet; 13: a first smoke box; 14: a second smoke box; 15: a smoke pipe; 16: and the pipeline is communicated with the heat exchange chimney.

The boiler can be provided with automatic material conveying equipment at the end part of the feeding pipe.

As shown in the attached drawing, a biomass briquette boiler comprises a combustor 1, a fire grate 6 is arranged in the combustor, an ash cleaning port is arranged on the combustor below the fire grate, a blower 3 is arranged outside the combustor and blows primary air into the combustor from the lower part of the fire grate through a primary air pipe, the wall of the combustor is of a jacket structure, water is filled in the jacket, the combustor is connected with a straight-barrel-shaped combustion chamber 8 through a transition cylinder 7, 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 combustor, at least three secondary air pipes are arranged on the wall of the transition cylinder and are communicated with the blower, a heat exchange chimney 11 is arranged above the straight-barrel-shaped combustion chamber, the sandwich layer 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 10, a product outlet of the boiler is connected on the heat exchange chimney, and the heat exchange chimney is connected with a flue gas outlet 12, be connected with the draught fan on the exhanst gas outlet, the draught fan does not show in the picture, straight cylindric combustion chamber and heat transfer chimney between be provided with a plurality of baffling formula heat transfer rooms, seal around a plurality of baffling formula heat transfer rooms, two adjacent heat transfer indoor portions communicate, above all is the structure in the current boiler, can refer to the detailed scheme among the chinese patent application number 2020226512882.

The combustor 1 has the same upper and lower wall size, the upper end of the combustor is connected with a feeding pipe 2 which inclines downwards, a plurality of heat exchange pipes 9 are distributed in the straight cylindrical combustion chamber front and back, two ends of each heat exchange pipe are respectively communicated with the interlayer on the straight cylindrical combustion chamber, and two adjacent heat exchange pipes are distributed in a crossed manner. The cross-distributed heat exchange tubes are shown in fig. 4.

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. 16 is a pipe communicated with the heat exchange chimney, 103 is a pipe opening communicated with the heat exchange chimney; FIG. 8 is a schematic view of the inner cavity of the jacket in the horizontal direction of the upper end of the burner, 101 being the lower end; 102 is high end, the reason of the design is that only the combustor wall interlayer is connected to the water pipeline of the straight-cylinder combustor interlayer originally, water is in the straight-cylinder combustor jacket during operation, when the combustor is used as a steam boiler, gas in the jacket at the upper end of the combustor cannot be discharged under the water sealing action, pressure is easily accumulated to cause pressure rise, and potential explosion hazard exists.

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 briquette boiler comprises a burner, a grate is arranged in the burner, an ash cleaning port is arranged on the burner below the grate, a blower is arranged outside the burner, primary air is blown 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 introduced into 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, the sandwich layer 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, a product outlet of the boiler is connected onto the heat exchange chimney, the heat exchange chimney is connected with a flue gas outlet, and the flue gas outlet is connected with an induced draft fan, 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, the inside intercommunication of two adjacent heat transfer chambers, its characterized in that: the combustor wall has the same vertical size, the upper end of the combustor is connected with a feeding pipe which is inclined downwards, a plurality of heat exchange pipes are distributed in the straight cylindrical combustion chamber front and back, two ends of each heat exchange pipe are respectively communicated with an interlayer on the straight cylindrical combustion chamber, and two adjacent heat exchange pipes are distributed in a crossed manner.

2. The biomass briquette fuel boiler of claim 1, wherein: 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 briquette fuel boiler of claim 1, wherein: 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 briquette fuel boiler of claim 3, wherein: 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 briquette fuel boiler of claim 3, wherein: 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.