CN218407843U

CN218407843U - Blower burner for burning gaseous and/or liquid fuels

Info

Publication number: CN218407843U
Application number: CN202222260944.5U
Authority: CN
Inventors: 王明君; 李圣兵; 詹志伟
Original assignee: Shanghai Quanjie Environment Equipment Co ltd
Current assignee: Shanghai Quanjie Environment Equipment Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-01-31
Anticipated expiration: 2032-08-26

Abstract

The utility model relates to a blast type combustor for burning gaseous state and/or liquid fuel, this combustor have integrated the air-blower, air regulation damper, whistle box and electric cabinet, and it includes: the air blower, the inside right whistle box that has integrateed the combustor electric cabinet and the inside left whistle box that has integrateed the motor electric cabinet are provided with the air door baffle in the frame attach channel, and the air blower spiral case is equipped with the air blower motor, the impeller setting of air blower is in the air blower spiral case, control two whistle box outer walls and air blower casing outer wall and be connected respectively and construct to form from the air intake through left whistle box extremely frame attach channel forms the inverted U-shaped passageway of breathing in from frame attach channel through right whistle box to impeller inlet scoop, and the upper portion of right side whistle box sets up the combustor electric cabinet, and the upper portion of left side whistle box sets up the motor electric cabinet. The utility model discloses a blast type combustor overall structure is compact, and is rationally distributed, easily equipment, greatly reduced the overall cost of combustor.

Description

Blower burner for burning gaseous and/or liquid fuels

Technical Field

The utility model relates to an integral type forced draft combustor to especially relate to the forced draft combustor of integrated air damper, whistle box and electric cabinet on combustor blower casing.

Background

It is generally known that blower burners are generally divided into two types of burners, one type and a split type, and the main difference is whether a blower system of the burner is integrated on a burner body, the burner body is provided with a blower called an all-in-one machine, and the blower is separated from the burner and connected through an external air duct called a split machine. Typical one-piece burners generally comprise a blower wheel, a blower motor and a damper for controlling the combustion air volume on the burner housing, wherein the damper can be arranged on the air intake side or on the pressurized delivery side. Since air is sucked and pressurized by a blower and then delivered to a burner head, and then mixed with fuel to complete combustion, the air after being sucked and pressurized usually generates a loud noise when passing through an air flow passage and a damper.

In order to eliminate the influence of noise, it is common practice to use a full-cover type sound-deadening box and install a sound-deadening device at the air inlet of the combustor.

It is known, for example from CN2816606Y, to reduce noise by providing a sound-damping cover around the blower burner of the burner housing. Wherein the muffler housing to some extent forms a "sound-deadening" chamber around the blast burner.

For example, from patent document EP2354652B1, it is known to arrange a burner electric cabinet at a certain space position behind a burner blower, to use the rear wall of the electric cabinet, to install connecting channels on both sides of the electric cabinet, to use the rear part of the blower and the outer walls of the blower on both sides to form a suction channel from the motor side of the blower to the suction inlet of the blower, and to arrange sound absorbing material in the suction channel, so as to achieve the effect of reducing noise.

The above two known solutions require a corresponding blower space around the blower burner, a sound-insulating chamber or an air suction channel is constructed, components other than the original blower burner are added, and the cost is additionally increased. With respect to the solution of patent document EP2354652B1, although the whole combination of the blower and the silencing equipment is well solved, it occupies a large space at the rear of the burner, so that the volume of the whole burner is increased, and the connecting air channel part and the electric cabinet used for constructing the air suction air channel need to be additionally supported and fixed, thereby increasing the steps and difficulty of the burner manufacturing process. In addition, the vertical installation mode of the burner cannot be met, and available supporting equipment is limited.

SUMMERY OF THE UTILITY MODEL

The object of the utility model is to provide a blast type combustor for burning gaseous state and/or liquid fuel, this blast type combustor, include: the air blower, the inside right whistle box that has integrateed the combustor electric cabinet and the inside left whistle box that has integrateed the motor electric cabinet, wherein the neck department is equipped with the frame attach channel of left whistle box of intercommunication and right whistle box before the air blower spiral case be provided with the air door baffle in the frame attach channel, the air blower spiral case is equipped with the air-blower motor, the impeller setting of air-blower is in the air blower spiral case, left side whistle box and right whistle box outer wall construct with air blower casing outer wall connection respectively and construct from the air intake through left whistle box extremely frame attach channel follows again frame attach channel forms the passageway of breathing in of falling the U-shaped through right whistle box to impeller inlet scoop, the upper portion of right whistle box sets up the combustor electric cabinet, the upper portion of left side whistle box sets up the motor electric cabinet.

Further, the position of the front neck of the blower volute refers to the position of the lower shell of the pipe section of the blower air outlet to the edge space at the bottom of the blower volute, and the frame connecting channel is arranged at the position.

Further, the damper baffle is arranged in the frame connecting passage, and controls the air quantity of the burner through the damper actuator.

Furthermore, the right sound-muffling box and the left sound-muffling box are arc-shaped and hollow, and the arc-shaped opening part is hermetically connected with the volute of the blower.

Furthermore, the casing part of the right muffling box at the impeller air suction opening is the same as the shape of the impeller air suction opening of the air blower, completely covers the impeller air suction opening and is in sealing connection with the volute of the air blower, and the casing part of the right muffling box at the frame connecting channel is the same as the shape of the air damper baffle frame channel, completely covers the frame connecting channel and is in sealing connection with the casing part of the air blower channel frame.

Furthermore, the casing part of the left sound muffling box at the position of the frame connecting channel is identical to the shape of the air damper baffle frame channel, completely covers the frame connecting channel and is in sealing connection with the air blower channel casing part, the left sound muffling box completely covers the air blower motor and is in sealing connection with the air blower volute, the bottom of the left sound muffling box, which is far away from one end of the air damper baffle, is provided with an air inlet, and the air inlet is a grid in the shape of a strip hole, a square hole or a round hole.

Furthermore, a motor cooling air hole is formed in the shell of the left sound muffling box along the axial direction of the blower motor, and the cooling fan cover of the motor extends out of the motor cooling air hole.

Further, the inner walls of the air suction channels are provided with sound attenuation materials.

Further, a combustor electric control box bottom plate is arranged on the upper portion of the right sound muffling box, a combustor electric control box is installed on the combustor electric control box bottom plate, the right sound muffling box annular vertical face of the right sound muffling box forms a combustor electric control box shell, and a combustor electric control box cover plate is arranged on the top of the combustor electric control box shell.

Further, a motor electric control box bottom plate is arranged on the upper portion of the left sound muffling box, a motor electric control box is installed on the motor electric control box bottom plate, the annular vertical face of the left sound muffling box forms a motor electric control box shell, and a motor electric control box cover plate is arranged on the top of the left sound muffling box.

The utility model discloses an integration blast type combustor, wholly comprise three module, the air-blower has been integrated, air volume control's air door, combustor parts such as whistle box and electric cabinet, with the air blower motor electric cabinet, the combustor electric cabinet and constitute the whistle box integration of suction channel together, make full use of the vacant space of air-blower front end and both sides, under the condition in the occupation of land space that does not increase the combustor body, the overall structure of combustor has been optimized, on the basis of reaching the noise reduction, make combustor overall structure compact, and reasonable layout, easily equipment, the overall cost of combustor has been reduced. In addition, because compact overall structure overall arrangement, the utility model discloses the combustor can adopt level and vertical mounting means, the abundant demand that satisfies the different grade type with the thermal equipment.

Drawings

Fig. 1 is a schematic three-dimensional external view of an embodiment of a blower-type burner according to the present invention;

fig. 2 is a schematic view illustrating an internal structure of the blower type burner of fig. 1;

fig. 3 is a three-dimensional horizontal cross-sectional view of the blower type burner of fig. 1 in the middle of an electric cabinet;

fig. 4 shows a three-dimensional horizontal cross-sectional view of the blower burner of fig. 1 in the middle of the sound muffling box;

FIG. 5 is a three-dimensional vertical cross-sectional left side view of the blower module of FIG. 1;

FIG. 6 shows a three-dimensional vertical cross-sectional right side view of the blower module of FIG. 1;

FIG. 7 is a three-dimensional view of the motor side sound muffling box and the electric control box module of FIG. 1;

fig. 8 is a three-dimensional view of the silencer cabinet and the electronic control box module on the side of the impeller air suction port in fig. 1.

Detailed Description

The present invention will be further explained by way of examples with reference to the accompanying drawings.

Fig. 1 shows schematically an exemplary embodiment of a blower burner 1 for burning gaseous and/or liquid fuels in accordance with the present invention.

As shown in fig. 1 and 2, the outlet section 26 of the blower 2 housing of the blower type burner 1 is an air passage housing portion with a diameter varying from a square to a circle, the outlet is circular, a hinged flange 29 is provided at the circular outlet portion, and is connected to a combustion head portion (not shown) including a flame tube of the burner through the hinged flange 29, and the hinged flange 29 is bilaterally symmetrical, so that the housing portion of the burner 1 can be unscrewed to both sides through the hinged flange 29 when the burner is maintained.

The utility model discloses a blowing-type combustor 1 contains: the blower component integrated with the damper flap 28, the motor side baffle box component (hereinafter referred to as the left baffle box 4) integrated with the motor control box 46, and the impeller suction opening side baffle box component (hereinafter referred to as the right baffle box 3) integrated with the burner control box 34 are combined by these three modular components. The three components are combined to form an inverted U-shaped air suction channel from the combustor air inlet 44 to the air damper baffle frame connecting channel 27, the air damper baffle frame connecting channel 27 to the axial air inlet area of the shell of the blower impeller air inlet 25, the air damper baffle 28 is arranged in the frame connecting channel 27, and the air volume of the combustor is controlled through the air damper actuator 2A.

As shown in fig. 1 to 8, a blower type burner 1 of the present invention includes: air-blower 2, the inside right whistle box 3 that has integrateed combustor electric cabinet 34 and the inside left whistle box 4 that has integrateed motor electric cabinet 46, wherein the neck department is equipped with the frame attach channel of intercommunication left whistle box 4 and right whistle box 3 before the air-blower spiral case 21 set up in the frame attach channel 27 and install air door baffle 28, and the air-blower spiral case is equipped with air-blower motor 22, the impeller 24 of air-blower sets up in the air-blower spiral case, the air-blower spiral case is inside to be constructed to pass through left whistle box 4 extremely from air intake 44 frame attach channel 27, follow again frame attach channel 27 forms the passageway of breathing in of falling the U-shape through right whistle box 3 to impeller inlet scoop 25, the upper portion of right whistle box 3 sets up combustor electric cabinet 34, the upper portion of left side whistle box 4 sets up motor electric cabinet 46.

As shown in fig. 4 and 5, the frame channel 27 of the damper flap 28 is located at the position from the lower shell of the duct section 26 at the air outlet of the blower 2 to the edge space at the bottom of the blower volute, and the lower plane of the outer shell of the duct section 26 at the air outlet of the blower 2 is a part of the frame connecting channel 27 of the damper, so that the damper and the blower are integrated into a single structure. This wind door frame connecting passage 27 serves as a connecting member for both the left and

right suction passages

31 and 41.

As shown in fig. 6 and 7, the left sound muffling box 4 and the right sound muffling box 3 are arc-shaped and hollow, the arc-shaped opening part is hermetically connected with the blower volute 2 to respectively form an air suction channel 31 and an air suction channel 41, the connecting part of the right sound muffling box 3 and the air door frame connecting channel 27 has the same shape as the air door frame connecting channel interface, the connecting part has the same size as the frame connecting channel 27 and is hermetically connected with the blower air door frame shell, the connecting part of the right sound muffling box 3 and the blower impeller suction opening 25 has the same shape as the impeller suction opening shell, and the connecting part has the same size as the impeller suction opening 25 and is hermetically connected with the blower shell; the connecting part of the left sound muffling box 4 and the wind door frame connecting channel 27 is the same as the wind door frame channel interface in shape, the frame connecting channel 27 is completely covered in size and is in sealing connection with the shell of the wind door frame of the air blower, and the end part of the left sound muffling box 4 on the motor side of the air blower is semicircular in shape and completely covers the air blower motor 22 and is in sealing connection with the volute of the air blower. Along the axial direction of air-blower motor 6, open motor cooling air hole 45 on left whistle box 4's shell, the trompil size satisfies that motor cooling fan dustcoat 23 stretches out left whistle box 4's shell, if motor cooling fan does not stretch out left whistle box 4, need to guarantee that axial trompil size is enough big to satisfy the normal circulation and the cooling action of motor cooling air. The cooling air blown by the motor cooling fan enters the combustor blower through the U-shaped air suction channel constructed by the combustor, so that the utilization rate of the blower to the outside air is increased.

As shown in fig. 7, a burner air inlet 44 with a sufficient size is formed at the bottom of the end of the motor of the housing of the left sound muffling box 4 far away from the air door baffle 28, so that combustion air with corresponding combustion power of the burner enters, and the sucked air partially flows through the blower motor 22, thereby enhancing the cooling effect on the motor 22. The opening of the air inlet 44 may be a grid in the shape of a strip-shaped hole, a square hole or a circular hole, etc., so as to prevent foreign matters from being sucked while the combustion air enters.

As shown in fig. 3, the paths shown by the arrows are the air suction passage 31 and the air suction passage 41, and the left and right muffling boxes are provided with muffling materials 33 on the inner walls, i.e., the entire inner walls of the air suction passage are provided with muffling materials. The sound attenuating material may be any material known in the art and having sound attenuating or absorbing effects. Such as polyurethane foam, wool, plastic, open cell foam, and the like.

As shown in fig. 6 and 7, in the blast-type burner, a bottom plate 35 of a burner electric cabinet is arranged on the upper portion of an air duct of the right sound suppressing box 3, that is, the casing of the sound suppressing box on the upper portion of the air duct 31 is the bottom plate 35 of the electric cabinet, the electric cabinet 34 of the burner is arranged and installed on the bottom plate 35 of the burner electric cabinet, a ring-shaped vertical surface 36 of the right sound suppressing box 3 above the air duct 31 forms the casing of the electric cabinet 34, the height of the ring-shaped vertical surface satisfies that all electrical components of a burner control system including a program controller can be installed, and a cover plate 37 of the burner electric cabinet is arranged on the top. The upper portion of an air duct 41 of the left sound muffling box 4 is provided with an electric control box bottom plate 47, the motor electric control box 46 is arranged and installed on the electric control box bottom plate 47, the left sound muffling box 4 forms an electric control box 46 shell on a left sound muffling box annular vertical surface 48 above the air duct 41, the height of the annular vertical surface meets the requirement that a motor control system comprises an air switch, all electrical elements of a contactor or a frequency converter can be installed, and a motor electric control box cover plate 49 is arranged at the top of the annular vertical surface.

The integral blowing type combustor integrally comprises three modules, integrates an air blower, an air door for air volume adjustment, a sound attenuation box, an electric cabinet and other combustor parts, optimizes the integral structure of the combustor, and enables the combustor to be integrally compact and easy to assemble on the basis of achieving noise reduction, and the integral cost of the combustor is reduced.

Claims

1. A blower burner for burning gaseous and/or liquid fuel, characterized in that it comprises: air-blower (2), the inside right whistle box (3) that has integrated combustor electric cabinet (34) and the inside left whistle box (4) that has integrated motor electric cabinet (46), wherein the neck department is equipped with frame attach channel (27) that communicate right whistle box (3) and left whistle box (4) before air-blower (2) shell be provided with air door baffle (28) in frame attach channel (27), air-blower (2) shell is equipped with air-blower motor (22), impeller (24) of air-blower (2) set up in air-blower spiral case (21), left side whistle box (4) and right whistle box (3) outer wall are connected respectively with air-blower (2) casing outer wall and are constructed into through left whistle box (4) from air intake (44) extremely frame attach channel (27), follow again frame attach channel (27) are through right whistle box (3) to impeller inlet scoop (25) to form the inverted U-shaped passageway of breathing in, the upper portion of right side whistle box (3) sets up combustor electric cabinet (34), the upper portion of left side whistle box (4) sets up motor electric cabinet (46).

2. A blower burner as claimed in claim 1, wherein the position of the front neck of the housing of the blower (2) refers to the position of the lower shell of the pipe section (26) of the outlet opening of the blower (2) to the bottom edge space of the blower volute (21), at which position the frame connection channel (27) is arranged.

3. A blower burner as claimed in claim 2, characterised in that the damper flap (28) is arranged in the frame connecting channel (27) and controls the air volume of the burner by means of a damper actuator.

4. A blast burner as defined in claim 1, wherein said right and left muffling chambers (3, 4) are hollow in an arc shape with the arc-shaped opening portion being sealingly connected to the housing of the blower (2).

5. A blast burner as set forth in claim 1, characterized in that said right muffling chamber (3) has a housing portion at the impeller air suction opening (25) which is of the same shape as the blower impeller air suction opening (25) and completely covers the impeller air suction opening (25) and is sealingly connected to the blower volute, and said right muffling chamber (3) has a housing portion at the frame connecting passage (27) which is of the same shape as the damper baffle frame passage and completely covers the frame connecting passage (27) and is sealingly connected to the blower passage frame housing portion.

6. A blast burner as set forth in claim 1, characterized in that said left muffling chamber (4) has a housing portion at said frame connecting passage (27) of the same shape as the damper baffle frame passage, and completely covers the frame connecting passage (27), and is hermetically connected to the blower passage frame housing portion, said left muffling chamber (4) completely covers the blower motor (22), and is hermetically connected to the blower volute, and an air intake opening (44) is formed at the bottom of the end of the left muffling chamber (4) far from the damper baffle (28), and the air intake opening (44) is a grid of a bar-like, square or circular hole shape.

7. A blast-type burner as set forth in claim 1, wherein a motor cooling air hole (45) is formed in the casing of said left muffling chamber (4) in the axial direction of the blower motor (22), and a motor cooling air cover (23) is protruded from the motor cooling air hole (45).

8. A blower burner according to claim 1, in which the inner walls (32, 42) of the suction channel are each provided with sound-damping material (33).

9. A blast burner as defined in claim 1, wherein a burner electric cabinet base plate (35) is provided on the upper portion of said right muffling box (3), a burner electric cabinet (34) is mounted on said burner electric cabinet base plate (35), a right muffling box annular vertical surface (36) of said right muffling box (3) constitutes a housing of said burner electric cabinet (34), and a burner electric cabinet cover plate (37) is provided on the top.

10. A blast burner as defined in claim 1, wherein a bottom plate (47) of the electric motor control box is arranged on the upper portion of said left sound muffling box (4), an electric motor control box (46) is mounted on said bottom plate (47), a ring-shaped vertical surface (48) of said left sound muffling box (4) forms a housing of the electric motor control box (46), and a cover plate (49) of the electric motor control box is arranged on the top portion.