Compact noise-reduction high-pressure fan for trolley furnace

Abstract

The utility model relates to a compact noise reduction high-pressure fan for a car-bottom furnace, which comprises a base, a motor, a fixing plate, a volute, an impeller, a partition plate, a through hole, a fixing piece, an upper sound insulation cover and a lower sound insulation cover, the motor is arranged on the top of the base, the volute is arranged on one side of the base through the fixing plate, and the impeller is arranged on one side of the base. The motor is arranged in the volute, the impeller is arranged in the volute and connected with an output shaft of the motor, the partition plate is arranged on the side, close to the motor, of the volute, the through holes are evenly formed in the center of the partition plate, and the upper sound insulation cover and the lower sound insulation cover are arranged outside the motor and the volute through the fixing pieces. First openings are formed in the ends, close to the motor, of the upper soundproof cover and the lower soundproof cover. The motor is reversely installed at the air inlet end of the volute, the negative pressure area is formed at the air inlet by means of the impeller air inlet principle, the overall noise of the fan is reduced, the overall structure is compact, and the noise reduction high-pressure fan is suitable for being installed in a small space.

Description

Technical Field

[0001] The utility model relates to a compact noise-reducing high-pressure fan for a trolley furnace. Background Art

[0002] The common structural style of the combustion-supporting fan on the burner of the existing domestic trolley furnace is: a muffler is connected to the fan inlet or outlet to reduce noise. Although the noise reduction effect of this structure is good, the installation of a muffler will increase the length of the overall pipeline and the overall volume. When some customers use it, their actual installation space cannot meet the requirements of installing an overly long muffler structure, so there is an urgent need to design a compact noise-reducing high-pressure fan. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] The technical problem to be solved by the utility model is how to solve the problem that the overall volume of the existing high-pressure fan increases after the muffler is installed, and the fan cannot be installed in a small space.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: a compact noise-reducing high-pressure fan for a trolley furnace, comprising a base, a motor, a fixing plate, a volute, an impeller, a partition, a through hole, a fixing member, an upper sound insulation cover and a lower sound insulation cover, the motor being arranged at the top of the base, the volute being arranged on one side of the base through the fixing plate, the impeller being arranged in the volute, the impeller being connected to the output shaft of the motor, the partition being arranged on the side of the volute close to the motor, the through holes being evenly opened in the center of the partition for air suction of the fan, the upper sound insulation cover and the lower sound insulation cover being arranged outside the motor and the volute through the fixing member for noise reduction, and a first opening being arranged at one end of the upper sound insulation cover and the lower sound insulation cover close to the motor.

[0006] As a preferred solution of the compact noise-reducing high-pressure blower for a trolley furnace described in the utility model, the fixing part includes a rotating rod, a square hole and a pressure block. The rotating rod is rotatably arranged on the outer edge of the lower sound insulation cover, the square hole is opened on the outer edge of the upper sound insulation cover, the pressure block is arranged on the top of the rotating rod, and the rotating rod passes through the square hole. The upper sound insulation cover and the lower sound insulation cover can be quickly disassembled and assembled by rotating the pressure block.

[0007] As a preferred solution of the compact noise-reducing high-pressure blower for a trolley furnace described in the utility model, a second opening for installing an impeller is provided at the front end of the volute, and a cover plate is provided on the side of the upper sound insulation cover and the lower sound insulation cover close to the volute to facilitate the installation and maintenance of the impeller.

[0008] As a preferred solution of the compact noise-reducing high-pressure blower for a trolley furnace described in the utility model, the fixing member further includes a torsion rod, and the torsion rod is arranged on the top of the pressing block to facilitate the rotation of the pressing block.

[0009] As a preferred solution of the compact noise-reducing high-pressure blower for a trolley furnace described in the utility model, a filter is provided at the first opening to play a filtering role.

[0010] Beneficial effects:

[0011] 1. Install the motor in reverse at the air inlet end of the volute, and use the impeller air intake principle to form a negative pressure area at the air inlet, which reduces the overall noise of the fan and has the effect of cooling the motor. The overall structure is compact, so it is suitable for the installation of noise-reducing high-pressure fans in smaller spaces;

[0012] 2. By installing upper and lower sound insulation covers outside the motor and volute, the noise of the high-pressure fan can be further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0014] Figure 1 Schematic diagram of the overall structure of a compact noise-reducing high-pressure blower for a trolley furnace.

[0015] Figure 2 Schematic diagram of the internal structure of the upper and lower sound insulation covers of a compact noise-reducing high-pressure fan for a trolley furnace.

[0016] Figure 3 Design of compact, noise-reducing high-pressure blowers for bogie hearth furnaces Figure 1 Enlarged view of point A in the middle.

[0017] Figure 4 Schematic diagram of the position structure of the fixing parts of the compact noise-reducing high-pressure fan for the trolley furnace.

[0018] In the figure: 1, base; 2, motor; 3, fixing plate; 4, volute; 5, impeller; 6, partition; 7, through hole; 8, fixing piece; 81, rotating rod; 82, square hole; 83, pressure block; 84, torsion rod; 9, upper sound insulation cover; 10, lower sound insulation cover; 11, first opening; 12, second opening; 13, cover plate; 14, filter. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0022] Example

[0023] Reference Figures 1 to 4 The present embodiment provides a compact noise-reducing high-pressure fan for a trolley furnace, comprising a base 1, a motor 2, a fixing plate 3, a volute 4, an impeller 5, a partition 6, a through hole 7, a fixing member 8, an upper soundproof cover 9 and a lower soundproof cover 10. The motor 2 is arranged on the top of the base 1, the volute 4 is arranged on one side of the base 1 through the fixing plate 3, the impeller 5 is arranged in the volute 4, the impeller 5 is connected to the output shaft of the motor 2, the partition 6 is arranged on the side of the volute 4 close to the motor 2, the through hole 7 is evenly opened in the center of the partition 6 for air suction of the fan, the upper soundproof cover 9 and the lower soundproof cover 10 are arranged outside the motor 2 and the volute 4 through the fixing member 8 for noise reduction, and the upper soundproof cover 9 and the lower soundproof cover 10 are provided with a first opening 11 at one end close to the motor 2.

[0024] The base 1 serves as the installation foundation of the high-pressure fan. A motor 2 is fixedly installed on the top of the base 1. Two fixing plates 3 are symmetrically welded on the air inlet side of the volute 4. The fixing plate 3 is installed on the side of the base 1 close to the output shaft of the motor 2, so that the volute 4 can be fixed on the base 1 through the fixing plate 3. The fixing plate 3 can also further fix the motor 2, so that the motor 2 is reversely installed on the original air inlet side of the volute 4. An impeller 5 is rotatably installed in the volute 4, and the rotating shaft of the impeller 5 is fixedly installed on the output shaft of the motor 2. The air intake principle of the impeller 5 is used to form a negative pressure area at the air inlet to reduce the overall noise of the high-pressure fan, so that the noise reduction structure of the high-pressure fan is more compact, and when air flows through the motor 2, the motor 2 can also be cooled. A partition plate 6 is fixedly installed on the side of the volute 4 close to the motor 2 to isolate the motor 2 from the inside of the volute 4 and to improve the air quality of the impeller 5. The impeller 5 plays a certain protective role. In the center of the partition 6, that is, near the output shaft of the motor 2, a plurality of through holes 7 are evenly opened, so that the impeller 5 can rotate at high speed to suck air. The partition 6 is rotatably connected to the output shaft of the motor 2. In this embodiment, an upper sound insulation cover 9 and a lower sound insulation cover 10 are also provided on the outer surface of the motor 2 and the volute 4, and the upper sound insulation cover 9 and the lower sound insulation cover 10 form a whole, and a plurality of fixing members 8 are evenly installed around the outer edges of the upper sound insulation cover 9 and the lower sound insulation cover 10. The upper sound insulation cover 9 and the lower sound insulation cover 10 are installed together through the fixing members 8, and the entire high-pressure fan is wrapped by the upper sound insulation cover 9 and the lower sound insulation cover 10 to further reduce noise. In order to facilitate external air to enter the upper sound insulation cover 9 and the lower sound insulation cover 10, the first opening 11 is also provided on the upper sound insulation cover 9 and the lower sound insulation cover 10 at one end close to the motor 2 in this embodiment.

[0025] Specifically, the fixing member 8 includes a rotating rod 81, a square hole 82 and a pressure block 83. The rotating rod 81 is rotatably arranged on the outer edge of the lower sound insulation cover 10, the square hole 82 is opened on the outer edge of the upper sound insulation cover 9, the pressure block 83 is arranged on the top of the rotating rod 81, and the rotating rod 81 passes through the square hole 82.

[0026] The fixing member 8 is mainly composed of a rotating rod 81, a square hole 82 and a pressing block 83. A plurality of rotating rods 81 are evenly arranged around the outer edge of the lower soundproof cover 10. The rotating rods 81 are rotatably connected to the lower soundproof cover 10. Square holes 82 corresponding to the number and position of the rotating rods 81 are evenly opened around the outer edge of the upper soundproof cover 9. A pressing block 83 is fixedly installed on the top of the rotating rod 81. The rotating rod 81 passes through the square hole 82. That is, when the upper soundproof cover 9 is fitted with the lower soundproof cover 10, the top of the rotating rod 81 can just pass through the square hole 82, so that the bottom of the pressing block 83 can squeeze the upper surface of the outer edge of the upper soundproof cover 9. When disassembly is required, the pressing block 83 only needs to be manually rotated by the rotating rod 81 so that the pressing block 83 is parallel to the square hole 82. state, at this time the pressing block 83 can completely pass through the square hole 82, then the upper sound insulation cover 9 and the lower sound insulation cover 10 can be separated. When installation is required, it is only necessary to move the upper sound insulation cover 9 closer to the lower sound insulation cover 10 so that the pressing block 83 and the rotating rod 81 pass through the square hole 82, and the outer edges of the upper sound insulation cover 9 and the lower sound insulation cover 10 fit each other. At this time, the pressing block 83 can be manually rotated by the rotating rod 81 so that the pressing block 83 and the square hole 82 are in a vertical state, so that the upper sound insulation cover 9 and the lower sound insulation cover 10 can be fixed. Compared with bolt fixing, it is more convenient to fix the upper sound insulation cover 9 and the lower sound insulation cover 10 with this structure, thereby realizing rapid installation and disassembly of the upper sound insulation cover 9 and the lower sound insulation cover 10, so as to facilitate the repair and maintenance of the motor 2.

[0027] Furthermore, in this embodiment, a second opening 12 for installing the impeller 5 is opened at the front end of the volute 4, and a cover plate 13 is installed on the side of the upper sound insulation cover 9 and the lower sound insulation cover 10 close to the volute 4, that is, at a position corresponding to the second opening 12, to facilitate the installation and maintenance of the impeller 5.

[0028] Furthermore, the fixing member 8 also includes two torsion rods 84, which are symmetrically fixed on the top of the pressing block 83 to facilitate the rotation of the pressing block 83. It should be noted that the two torsion rods 84 and the pressing block 83 are in the same plane to prevent the torsion rods 84 from affecting the pressing block 83 passing through the square hole 82.

[0029] Furthermore, in this embodiment, a filter 14 is fixedly installed at the first opening 11, and the air entering the upper sound insulation cover 9 and the lower sound insulation cover 10 can be filtered through the filter 14 to prevent larger impurities such as stones from entering the upper sound insulation cover 9 and the lower sound insulation cover 10 and causing damage to the motor 2, the volute 4 and the impeller 5.

[0030] When in use, start the motor 2, the motor 2 drives the impeller 5 to rotate, and the impeller 5 sucks air, so that the air outside the upper sound insulation cover 9 and the lower sound insulation cover 10 flows into the upper sound insulation cover 9 and the lower sound insulation cover 10 through the filter 14, flows through the motor 2, and enters the volute 4 through the through hole 7 on the partition 6, and is finally sent out from the air outlet of the volute 4 to assist the combustion of the burner burner. The fan structure can utilize the air intake principle of the impeller 5 to form a negative pressure area at the air inlet to reduce the overall noise of the high-pressure fan, and the noise reduction structure of the high-pressure fan is more compact. At the same time, when the air flows through the motor 2, the motor 2 can also be cooled. In addition, the present embodiment is also equipped with an upper sound insulation cover 9 and a lower sound insulation cover 10 outside the motor 2 and the volute 4, which further reduces the overall noise of the high-pressure fan. The structure is compact and suitable for the installation of noise-reducing high-pressure fans in smaller spaces.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A compact noise-reducing high-pressure blower for a trolley furnace, characterized in that: The invention comprises a base (1), a motor (2), a fixing plate (3), a volute (4), an impeller (5), a partition (6), a through hole (7), a fixing member (8), an upper soundproof cover (9) and a lower soundproof cover (10), wherein the motor (2) is arranged on the top of the base (1), the volute (4) is arranged on one side of the base (1) through the fixing plate (3), the impeller (5) is arranged in the volute (4), and the impeller (5) is connected to the output of the motor (2). The motor (2) and the volute (4) are connected to each other with respect to an output shaft, the partition (6) is arranged on a side of the volute (4) close to the motor (2), the through hole (7) is evenly opened in the center of the partition (6) for suction of the fan, the upper soundproof cover (9) and the lower soundproof cover (10) are arranged outside the motor (2) and the volute (4) through the fixing member (8) for noise reduction, and the upper soundproof cover (9) and the lower soundproof cover (10) are provided with a first opening (11) at one end close to the motor (2).

2. The compact noise-reducing high-pressure blower for a trolley furnace according to claim 1, characterized in that: The fixing member (8) comprises a rotating rod (81), a square hole (82) and a pressing block (83); the rotating rod (81) is rotatably arranged on the outer edge of the lower sound insulation cover (10); the square hole (82) is opened on the outer edge of the upper sound insulation cover (9); the pressing block (83) is arranged on the top of the rotating rod (81); and the rotating rod (81) passes through the square hole (82).

3. The compact noise-reducing high-pressure blower for a trolley furnace according to claim 1, characterized in that: The front end of the volute (4) is provided with a second opening (12) for installing the impeller (5), and a cover plate (13) is provided on one side of the upper sound insulation cover (9) and the lower sound insulation cover (10) close to the volute (4).

4. The compact noise-reducing high-pressure blower for a trolley furnace according to claim 2, characterized in that: The fixing member (8) further comprises a torsion rod (84), wherein the torsion rod (84) is arranged on the top of the pressing block (83).

5. The compact noise-reducing high-pressure blower for a trolley furnace according to claim 1, characterized in that: A filter (14) is provided at the first opening (11).

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