Sound insulation box for double-screw compressor

Abstract

The utility model discloses a soundproof box for a twin-screw compressor, which comprises a soundproof box bottom plate, four upright posts, at least one middle post, a soundproof box top cover plate and a protective plate, the four upright posts are arranged at the corners of the soundproof box bottom plate, and the at least one middle post is arranged in the length direction of the soundproof box bottom plate at intervals. A soundproof box support B and a soundproof box support C are arranged on the tops of the stand columns and the middle columns to form a frame structure. A soundproof box top cover plate is installed on the upper portion of the frame structure. Wherein the soundproof box top cover plate is provided with a through hole A and a through hole B, and the through hole A and the through hole B are provided with an air suction valve protection cover and an exhaust valve protection cover. The spliced soundproof box has the advantages that the spliced structure of the soundproof box bottom plate, the stand columns, the middle columns, the soundproof box top cover plate and the protective plates is adopted, and disassembly, assembly and replacement are convenient. And the air suction valve protection cover and the exhaust valve protection cover which are spliced are arranged, so that the air suction valve and the exhaust valve are more convenient to maintain. Silencing cotton is attached to the interior of the soundproof box, so that noise transmitted by the compressor can be reduced more effectively.

Description

Technical Field

[0001] The utility model relates to a silencer, mainly a sound insulation box used for a twin-screw compressor. Background Art

[0002] Because compressors generate considerable noise during operation, some twin-screw compressors can produce 80-90 decibels of noise under extreme operating conditions, severely impacting the work environment and personnel health. Furthermore, some environments have stricter noise requirements. Therefore, a device is needed to reduce the transmitted noise while facilitating inspection and maintenance of the compressor. Furthermore, twin-screw compressors are equipped with suction and exhaust valves, which control the direction of airflow to ensure proper operation. However, these valves often experience problems such as stuck, leaks, spring breakage, and wear, necessitating solutions to facilitate routine maintenance. Utility Model Content

[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a sound insulation box for a twin-screw compressor. The device can effectively isolate the noise transmitted when the compressor is working, while also ensuring the subsequent inspection and maintenance of the compressor, thereby ensuring the safe, efficient and quiet operation of the unit.

[0004] The purpose of the utility model is achieved through the following technical solutions: A soundproof box for a twin-screw compressor, comprising a soundproof box bottom plate, columns, a middle column, a soundproof box top cover plate and a guard plate, wherein four columns are provided at the corners of the soundproof box bottom plate, at least one middle column is provided at intervals in the length direction of the soundproof box bottom plate, soundproof box supports B and soundproof box supports C are provided on the tops of the columns and the middle column to form a frame structure, and a soundproof box top cover plate is installed on the upper part of the frame structure; wherein, through holes A and through holes B are provided on the soundproof box top cover plate, so that the intake valve and the exhaust valve can extend from through holes A and through holes B respectively, and intake valve protective covers and exhaust valve protective covers are provided on through holes A and through holes B, and through holes A and through holes B are provided in a horizontal and vertical arrangement respectively; and the guard plate is connected to the columns or the middle column by self-tapping screws.

[0005] Furthermore, two center columns are spaced apart in the length direction of the bottom plate of the sound insulation box, a guard plate A is provided between the two center columns, a guard plate B is provided between the vertical column and the center column along the length direction, a right guard plate and a left guard plate are provided between the vertical column and the center column in the width direction respectively, a sound insulation box support A is provided in the middle position of the frame structure to support the top cover of the sound insulation box, and an oil unloading cover is provided on the bottom plate of the sound insulation box for subsequent replacement of the compressor oil.

[0006] Furthermore, the interior of the soundproof box is covered with sound-absorbing cotton to isolate the noise generated by the compressor during operation.

[0007] Furthermore, the right side guard plate is provided with a waist-shaped hole and a semi-waist-shaped hole, which are respectively used for the installation of the compressor liquid injection pipeline and the sensor line; the lower side of the guard plate A is provided with a semi-waist-shaped hole, which is used for the installation of the compressor power line.

[0008] Furthermore, the intake valve protection cover and the exhaust valve protection cover are formed by two symmetrical intake and exhaust valve cover plates into an "X"-shaped structure, one end of the "X"-shaped structure is open, and the opening directions of the intake valve protection cover and the exhaust valve protection cover are vertically arranged.

[0009] The beneficial effects of the utility model are:

[0010] 1. The sound insulation box bottom plate, column, center column, sound insulation box top cover and guard plate are spliced ​​together and fixed with bolts, nuts or self-tapping screws. Each guard plate can be disassembled and assembled separately, so it is easy to disassemble, assemble and replace.

[0011] 2. A through hole is opened on the top cover of the sound insulation box, so that the intake valve and exhaust valve can extend from the through hole above the top plate. At the same time, a spliced ​​intake valve protective cover and exhaust valve protective cover are set. Sometimes, maintenance can be carried out by simply dismantling half of them, making the intake valve and exhaust valve maintenance more convenient.

[0012] 3. The intake valve protection cover and the exhaust valve protection cover, the through hole A and the through hole B are respectively arranged horizontally and longitudinally, making the structure more compact. When the length is certain, the distance between the intake valve protection cover and the exhaust valve protection cover can be maintained to the greatest extent possible so that there will be no interference between the two.

[0013] 4. The inside of the sound insulation box is covered with sound-absorbing cotton, which can more effectively reduce the noise emitted by the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 This is a structural diagram of the utility model with the intake valve protection cover and the exhaust valve protection cover removed.

[0016] Figure 3 This is a structural diagram of the utility model with the top cover of the sound insulation box removed.

[0017] Figure 4 This is a schematic diagram of the structure of the utility model after the sound-absorbing cotton and the sound insulation box support A are removed.

[0018] Figure 5 It is a schematic structural diagram of the suction valve protection cover and the exhaust valve protection cover of the utility model.

[0019] Explanation of the accompanying numbers: 1-soundproof box bottom plate, 2-column, 3-middle column, 4-soundproof box support A, 5-soundproof box support B, 6-soundproof box support C, 7-soundproof box top cover, 7-1-through hole A, 7-2-through hole B, 8-intake valve protection cover, 9-guard plate A, 10-guard plate B, 11-right side guard plate, 12-left side guard plate, 13-oil unloading cover, 14-silence cotton, 15-exhaust valve protection cover. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] like Figure 1-5 As shown, a soundproof box for a twin-screw compressor includes a soundproof box bottom plate 1, columns 2, middle columns 3, a soundproof box top cover plate 7 and a guard plate. Four columns 2 are provided at the corners of the soundproof box bottom plate 1, and two middle columns 3 are provided at intervals in the length direction of the soundproof box bottom plate 1. The middle columns are in a "F" shape and are wrapped with sound-absorbing cotton. The tops of the columns 2 and the middle columns 3 are provided with soundproof box supports B5 and soundproof box supports C6 to form a frame structure, and a soundproof box top cover plate 7 is installed on the upper part of the frame structure; wherein, the soundproof box top cover Plate 7 is provided with through-holes A7-1 and B7-2, allowing the intake and exhaust valves to extend from through-holes A7-1 and B7-2, respectively. Intake and exhaust valve protective covers 14 and 15 are provided over through-holes A7-1 and B7-2, respectively. Through-holes A7-1 and B7-2 are arranged horizontally and vertically, respectively, making the structure more compact. Given a given length, the spacing between the intake and exhaust valve protective covers is maintained to the greatest extent possible, preventing interference between them. The guard plate is connected to the uprights 2 or center columns 3 with self-tapping screws for easy installation and removal. The interior of the soundproof box is affixed with sound-absorbing cotton 14 to isolate the noise generated by the compressor.

[0022] A guard plate A9 is provided between the two center columns 3. A semi-waisted hole is provided on the underside of guard plate A9 for installing the compressor power line. A guard plate B10 is provided along the length between the upright column 2 and the center column 3. A right guard plate 11 and a left guard plate 12 are provided along the width between the upright column 2 and the center column 3, respectively. The right guard plate 11 has a waisted hole and a semi-waisted hole, respectively, for installing the compressor liquid injection pipeline and the sensor feed line. A soundproof box support A4 is provided in the middle of the frame structure to support the soundproof box top cover 7. An oil unloading cover 13 is provided on the soundproof box bottom plate 1. Specifically, a hole is provided in the soundproof box bottom plate 1 and is connected to the oil unloading cover 13 with self-tapping screws to facilitate subsequent compressor oil replacement.

[0023] like Figure 5As shown, the intake valve protective cover 14 and the exhaust valve protective cover 15 are formed by two symmetrical intake and exhaust valve cover plates assembled into an "X"-shaped structure. The holes opened at the front and rear bends allow them to be fixed with bolts and nuts, and the holes opened at the bottom bend allow them to be fixed to the top cover plate 7 of the soundproof box with self-tapping screws. One end of the "X"-shaped structure is open, and the opening direction of the intake valve protective cover 14 and the exhaust valve protective cover 15 is set vertically. With the spliced ​​intake valve protective cover and exhaust valve protective cover, if a fault is found in the intake valve or exhaust valve, it is not necessary to remove the protective cover, but only the protective cover. More often, only half of the protective cover needs to be removed for maintenance, making the intake and exhaust valves more convenient to repair.

[0024] The specific assembly process of the utility model is as follows: Place the soundproof box bottom plate 1 with sound-absorbing cotton attached under the compressor and connect it with bolts and nuts. Connect the upright column 2 with sound-absorbing cotton attached to the soundproof box bottom plate 1 with bolts, nuts and self-tapping screws. Connect the soundproof box support B5 and the soundproof box support C6 to the upright column 2 with self-tapping screws. Connect the middle column 3 with sound-absorbing cotton attached to the soundproof box bottom plate 1 and the soundproof box support B5 with bolts, nuts and self-tapping screws. Connect the soundproof box support A4 to the soundproof box support B5 with self-tapping screws. Connect the soundproof box top cover 7 with sound-absorbing cotton attached to the upright column 2 and the middle column 3 with self-tapping screws. Fix the oil unloading cover 13 with sound-absorbing cotton attached to the soundproof box bottom plate 1 with self-tapping screws. Connect the guard plate A9, guard plate B10, right guard plate 11, and left guard plate 12 with sound-absorbing cotton attached to the upright column 2 and the middle column 3 with self-tapping screws. The suction valve protection cover and the exhaust valve protection cover with the sound-absorbing cotton are fixed on the top cover plate 7 of the sound insulation box by self-tapping screws, and the two symmetrically spliced ​​suction and exhaust valve cover plates are connected with bolts and nuts.

[0025] The utility model is made of galvanized steel plate with plastic-sprayed surface, which ensures strength and beautiful appearance.

[0026] It is understandable that for those skilled in the art, any equivalent replacement or change of the technical solution and the concept of the utility model should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A soundproof box for a twin-screw compressor, characterized by: The invention comprises a sound insulation box bottom plate (1), upright columns (2), a middle column (3), a sound insulation box top cover plate (7) and a guard plate, wherein four upright columns (2) are provided at the corners of the sound insulation box bottom plate (1), at least one middle column (3) is provided at intervals in the length direction of the sound insulation box bottom plate (1), a sound insulation box support B (5) and a sound insulation box support C (6) are provided on the top of the upright columns (2) and the middle column (3) to form a frame structure, and a sound insulation box top cover plate (7) is installed on the upper part of the frame structure; wherein, the sound insulation box bottom plate (1) is provided with four upright columns (2) ... at least one middle column (3) is provided at intervals A through hole A (7-1) and a through hole B (7-2) are formed on a top cover plate (7) of a speaker box, so that an air intake valve and an air exhaust valve can extend from the through hole A (7-1) and the through hole B (7-2) respectively. An air intake valve protection cover (8) and an air exhaust valve protection cover (15) are provided on the through hole A (7-1) and the through hole B (7-2). The through hole A (7-1) and the through hole B (7-2) are arranged in a horizontal direction and a vertical direction respectively. The guard plate is connected to the upright column (2) or the middle column (3) by self-tapping screws.

2. The sound insulation box for a twin-screw compressor according to claim 1, characterized in that: Two center columns (3) are arranged at intervals in the length direction of the sound insulation box bottom plate (1), a guard plate A (9) is provided between the two center columns (3), a guard plate B (10) is provided between the vertical column (2) and the center column (3) along the length direction, a right guard plate (11) and a left guard plate (12) are provided between the vertical column (2) and the center column (3) in the width direction, a sound insulation box support A (4) is provided in the middle position of the frame structure to support the sound insulation box top cover plate (7), and an oil discharge cover plate (13) is provided on the sound insulation box bottom plate (1) for subsequent replacement of compressor oil.

3. The sound insulation box for a twin-screw compressor according to claim 2, characterized in that: The interior of the soundproof box is covered with sound-absorbing cotton (14) for isolating the noise of the compressor when it is working.

4. The sound insulation box for a twin-screw compressor according to claim 3, characterized in that: The right side guard plate (11) is provided with a waist-shaped hole and a semi-waist-shaped hole, which are respectively used for installing the compressor liquid injection pipeline and the sensor input line; the lower side of the guard plate A (9) is provided with a semi-waist-shaped hole, which is used for installing the compressor power line.

5. The sound insulation box for a twin-screw compressor according to claim 4, characterized in that: The air intake valve protection cover (8) and the exhaust valve protection cover (15) are formed by two symmetrical air intake and exhaust valve cover plates into an "X"-shaped structure. One end of the "X"-shaped structure is open, and the opening directions of the air intake valve protection cover (8) and the exhaust valve protection cover (15) are vertically arranged.

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