Noise reduction assembly of screw type water chilling unit

Abstract

The utility model discloses a noise reduction assembly of a screw type water chilling unit, which relates to the technical field of noise reduction of water chilling units and comprises a water chilling unit body and a noise reduction assembly arranged outside the water chilling unit body. A noise reduction box is fixedly installed on the outer wall of the left side of the box body, a heat dissipation box is fixedly installed on the outer top face of the box body, a noise reduction assembly used for reducing noise generated during work of the water chilling unit body is arranged in the noise reduction box, and a cooling assembly used for reducing high temperature generated during work of the water chilling unit body is arranged in the heat dissipation box. Through mutual cooperation of the sound insulation plate I, the vibration reduction table, the sound insulation plate II and the through holes, noise generated by mechanical collision and noise generated by gas flow during exhaust can be reduced, and noise transmission can be isolated, so that the purpose of noise reduction is achieved.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction technology for water chiller units, and in particular to a noise reduction component for screw water chiller units. Background Technology

[0002] In the refrigeration industry, chillers are divided into two types: air-cooled chillers and water-cooled chillers. Based on the compressor, they are further divided into screw chillers, scroll chillers, and centrifugal chillers. In terms of temperature control, they are divided into low-temperature industrial chillers and normal-temperature chillers. Because they are widely used in various industries, the requirements for chillers are also different. The working principle of a chiller is that it is a multi-functional machine. During operation, chillers generate a lot of noise, which requires noise reduction devices to reduce the noise.

[0003] Current noise reduction devices typically only use soundproof panels to block noise. However, traditional noise reduction devices have limited effectiveness in blocking noise and cannot address the noise source. Furthermore, they fail to manage the heat generated by the chiller unit during operation, leading to excessively high operating temperatures and increased noise. Therefore, those skilled in the art have provided a noise reduction component for screw chillers to solve the problems mentioned in the background section. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a noise reduction component for screw chillers, which solves the problems mentioned in the background technology, such as limited noise blocking effect, inability to solve the noise generation problem at its source, and inability to solve the problem of excessively high operating temperature and even greater noise generated by the chiller during operation.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a noise reduction component for a screw chiller unit, comprising a chiller unit body and a noise reduction component disposed outside the chiller unit body;

[0006] The noise reduction assembly includes a housing located outside the chiller unit. A through-type opening is provided on the front outer wall of the housing, and symmetrically arranged maintenance soundproof doors are rotatably mounted on the inner side of the opening. Sound-absorbing louvers are installed on the front outer walls of both sets of maintenance soundproof doors. A noise reduction box is fixedly installed on the left outer wall of the housing, and a heat dissipation box is fixedly installed on the top surface of the housing. Light steel keel vibration dampers are symmetrically installed on the inner walls of the left, right, rear, and top surfaces of the housing, and the light steel keel vibration dampers are mutually... On the corresponding side, several sound insulation panels are fixedly installed with screws. A vibration damping platform is fixedly installed on the inner bottom surface of the enclosure. The chiller unit body is fixedly installed on the outer top surface of the vibration damping platform. The chiller unit body is connected to the noise reduction box through an air outlet pipe. The heat dissipation box is penetrated and extended into the interior of the enclosure through an air outlet pipe. The noise reduction box is equipped with a sound-absorbing component to reduce the noise generated by the chiller unit body during operation. The heat dissipation box is equipped with a cooling component to reduce the high temperature generated by the chiller unit body during operation.

[0007] As a further technical solution of this utility model, the noise reduction component includes a second sound insulation plate that is fixedly installed inside the noise reduction box and distributed in a vertical linear array, and an exhaust square pipe is connected through the bottom of the left outer wall of the noise reduction box.

[0008] As a further technical solution of this utility model, several sound insulation panels 2 have parallel and through holes on their outer top surfaces, and the noise reduction box is located inside the sound insulation panels 2 to form a sound insulation cavity.

[0009] As a further technical solution of this utility model, the cooling component includes a fan box located on the top surface of the outer casing and on the left side of the heat dissipation box. A fan is installed inside the fan box via a fixing plate. A protective net is fixedly installed on the left outer wall of the fan box via bolt one. The heat dissipation box is provided with an S-shaped cooling pipe inside. One end of the cooling pipe extends to the left side of the heat dissipation box and is connected to the fan box, while the other end is connected to the air outlet pipe two. At the same time, the heat dissipation box is filled with coolant.

[0010] As a further technical solution of this utility model, rectangular blocks are fixedly installed on the outer walls of the front and rear sides of the air box, and the two rectangular blocks are threadedly fixed to the box body by bolts.

[0011] As a further technical solution of this utility model, a pull handle is fixedly installed on the front outer wall of the two sets of maintenance soundproof doors.

[0012] This utility model provides a noise reduction component for screw chillers, which has the following advantages compared with the prior art:

[0013] 1. The noise reduction component of the screw chiller unit designed in this paper, through the cooperation of the sound insulation plate 1, the vibration damping platform, the sound insulation plate 2, and the through hole, can reduce the noise generated by mechanical collision and the noise generated by gas flow during exhaust, and at the same time isolate the transmission of noise, thereby achieving the purpose of noise reduction.

[0014] 2. The noise reduction component of the screw chiller unit designed in this paper, through the combined action of the set air box, fan and refrigeration pipe, can ensure that the chiller unit can dissipate heat while ensuring the normal use of the noise reduction structure, so as to avoid the high load operation caused by excessive temperature and increase the generation of noise. Attached Figure Description

[0015] Figure 1 A first three-dimensional structural schematic diagram of a noise reduction component for a screw chiller unit;

[0016] Figure 2 This is a schematic diagram of the second three-dimensional structure of a noise reduction component for a screw chiller unit;

[0017] Figure 3 A cross-sectional three-dimensional structural diagram of a noise reduction component for a screw chiller unit;

[0018] Figure 4 for Figure 3 A magnified view of the local structure at point A in the middle.

[0019] In the picture:

[0020] 1. Chiller unit body;

[0021] 2. Noise reduction components; 201. Enclosure; 202. Opening; 203. Inspection soundproof door; 204. Soundproof louvers; 205. Noise reduction box; 206. Heat dissipation box; 207. Light steel keel vibration damper; 208. Sound insulation panel one; 209. Vibration damping platform; 210. Vent pipe one; 211. Vent pipe two;

[0022] 3. Silencing components; 301. Sound insulation panel two; 302. Exhaust square pipe; 303. Through hole;

[0023] 4. Cooling components; 401. Air box; 402. Fan; 403. Protective net; 404. Refrigeration pipe; 405. Rectangular block;

[0024] 5. Pull-out handle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 This utility model provides a noise reduction component technical solution for a screw chiller unit: it includes a chiller unit body 1 and a noise reduction component 2 disposed outside the chiller unit body 1. The noise reduction component 2 includes a housing 201 disposed outside the chiller unit body 1. A through-type opening 202 is opened on the front outer wall of the housing 201, and symmetrically arranged maintenance soundproof doors 203 are rotatably installed on the inner side of the opening 202. Sound-absorbing louvers 204 are installed on the front outer walls of both sets of maintenance soundproof doors 203. A fixed sound-absorbing louver 204 is installed on the left outer wall of the housing 201. A noise reduction box 205 is installed, and a heat dissipation box 206 is fixedly installed on the outer top surface of the box 201. Light steel keel vibration dampers 207 are symmetrically installed on the inner walls of the left, right, rear and top surfaces of the box 201. Several sound insulation panels 208 are fixedly installed on the corresponding sides of the light steel keel vibration dampers 207 by screws. A vibration damping platform 209 is fixedly installed on the inner bottom surface of the box 201. The chiller unit body 1 is fixedly installed on the outer top surface of the vibration damping platform 209. Pull-out handles 5 are fixedly installed on the front outer walls of the two sets of maintenance soundproof doors 203. During the operation of the chiller unit 1, a large amount of noise is generated. Some of the noise is generated by mechanical vibration and impact, and some of the noise is generated by the rapid exhaust of airflow when the chiller unit 1 is venting. At this time, the vibration damping table can reduce the noise generated by the vibration and impact of the chiller unit 1. At the same time, the sound insulation board 208 can reflect the noise to reduce the outward transmission of noise. Furthermore, the light steel keel vibration damper 207 forms a soft connection with the housing 201, which can cut off the sound bridge and has a good suppression effect on the noise generated by vibration. Then, in conjunction with the noise reduction box 205, the noise generated by the gas flow during exhaust is reduced, thereby achieving the purpose of noise reduction. Afterward, the chiller unit is cooled by the heat dissipation box 206 to prevent the temperature from being too high and causing high load operation, which would increase the noise generation. Finally, the pull handle 5 is pushed to open the maintenance soundproof door 203 to facilitate the maintenance, inspection and replacement of the chiller unit 1.

[0027] The chiller unit 1 is connected to the noise reduction box 205 via an exhaust pipe 210. The noise reduction box 205 contains a sound-absorbing component 3 to reduce noise generated by the chiller unit 1 during operation. This component 3 includes sound-insulating panels 301 fixedly installed inside the noise reduction box 205 in a vertical linear array. An exhaust square pipe 302 is connected to the bottom of the left outer wall of the noise reduction box 205. Parallel, through-holes 303 are formed on the top surfaces of several sound-insulating panels 301. The interior of the noise reduction box 205, located between the sound-insulating panels 301, forms a sound-insulating cavity. When the chiller unit 1 discharges gas into the noise reduction box 205 via the exhaust pipe 210, the gas flows through the through-holes 303 on the sound-insulating panels 301 and through the exhaust square pipe 302. During this discharge, sound waves are trapped within the sound-insulating cavity and continuously bounced away, thus reducing noise generated by rapid gas flow.

[0028] The heat sink 206 extends into the interior of the housing 201 through the second air outlet pipe 211. The interior of the heat sink 206 is equipped with a cooling component 4 to reduce the high temperature generated by the chiller unit 1 during operation. The cooling component 4 includes a fan box 401 located on the top surface of the housing 201 and on the left side of the heat sink 206. A fan 402 is installed inside the fan box 401 through a fixing plate. A protective net 403 is fixedly installed on the left outer wall of the fan box 401 by bolt one. The interior of the heat sink 206 is equipped with an S-shaped cooling pipe 404. One end of the cooling pipe 404 extends to the left side of the heat sink 206 and is connected to the fan box 401, while the other end is connected to the second air outlet pipe 211. At the same time, the interior of the heat sink 206 is filled with coolant. Rectangular blocks 405 are fixedly installed on the front and rear outer walls of the fan box 401. The two rectangular blocks 405 are threadedly fixed to the housing 201 by bolt two. When the chiller unit 1 is working, it generates a large amount of heat energy, which is used to start the fan 402 to introduce the outside air into the air box 401 along the protective net 403. The protective net 403 can intercept some fixed debris to avoid affecting the air intake effect. Then the airflow is discharged through the outlet pipe 211 along the refrigeration pipe 404. When the airflow flows along the refrigeration pipe 404, the coolant injected in the heat sink 206 can cool it to form cold air, which can deal with the large amount of heat energy generated inside the box 201. At the same time, it accelerates the air flow rate inside the box 201 and improves the heat dissipation efficiency. Under the premise of ensuring the normal use of the noise reduction structure, the chiller unit is cooled to avoid the temperature from being too high and causing high load operation, which would increase the noise generation.

[0029] The working principle of this utility model is as follows: when in use, the sound insulation board 208 and the vibration damping platform are used to reduce the outward transmission of noise.

[0030] Meanwhile, the gas is discharged into the noise reduction box 205 through the exhaust pipe 210. At this time, it is discharged through the through holes 303 on the multiple sound insulation panels 301 and through the exhaust square pipe 302. During the discharge process, the sound waves are intercepted in the sound insulation cavity and continuously bounced and consumed, thereby reducing the noise generated by the rapid flow of gas.

[0031] At the same time, the fan 402 is started to discharge the outside air along the refrigeration pipe 404 through the second air outlet pipe 211 to process the large amount of heat generated inside the box 201, thereby accelerating the air flow inside the box 201, and then discharging it through the sound-absorbing louvers.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A noise reduction assembly for a screw water chiller, comprising: The application relates to a cold water unit body (1) and a noise reduction assembly (2) arranged outside the cold water unit body (1). The noise reduction assembly (2) comprises a box (201) arranged outside the cold water unit body (1), a through opening (202) is formed in the front outer wall of the box (201), symmetrically arranged maintenance soundproof doors (203) are arranged on the inner side of the opening (202), soundproof louver windows (204) are arranged on the front outer walls of the two groups of maintenance soundproof doors (203), a noise reduction box (205) is fixedly arranged on the left outer wall of the box (201), a heat dissipation box (206) is fixedly arranged on the outer top surface of the box (201), light steel keel shock absorbers (207) are symmetrically arranged on the inner walls of the left side, the right side, the rear side and the top surface of the box (201), a plurality of sound insulation boards (208) are fixedly arranged on the sides corresponding to the light steel keel shock absorbers (207) through screws, and a shock absorbing table (209) is fixedly arranged on the inner bottom surface of the box (201). The noise reduction box (205) is internally provided with sound reduction parts (3) for reducing the noise generated by the cold water unit body (1) during operation, and the heat dissipation box (206) is internally provided with cooling parts (4) for reducing the high temperature generated by the cold water unit body (1) during operation.

2. The noise reduction assembly of a screw water chiller of claim 1, wherein, The cold water unit body (1) is fixedly arranged on the outer top surface of the shock absorbing table (209), the cold water unit body (1) is connected with the noise reduction box (205) through a gas outlet pipe (210), and the heat dissipation box (206) is connected with the inside of the box (201) through a gas outlet pipe (211).

3. The noise reduction assembly of claim 1, wherein, The sound reduction parts (3) comprise sound insulation boards (301) fixedly arranged in the noise reduction box (205) and arranged in a vertical linear array, and a gas exhaust square pipe (302) is connected to the bottom of the left outer wall of the noise reduction box (205).

4. The noise reduction assembly of claim 3, wherein the first and second sound absorbing materials are formed of a porous material. A plurality of through holes (303) are formed in the outer top surfaces of the sound insulation boards (301) and are parallel to each other and in a through mode, and sound insulation cavities are formed between the sound insulation boards (301) in the noise reduction box (205).

5. The noise reduction assembly of a screw water chiller of claim 1, wherein, The cooling parts (4) comprise a wind box (401) arranged on the outer top surface of the box (201) and located on the left side of the heat dissipation box (206), a fan (402) is arranged in the wind box (401) through a fixed plate, a protective net (403) is fixedly arranged on the left outer wall of the wind box (401) through bolts, an S-shaped refrigeration pipe (404) is arranged in the heat dissipation box (206), one end of the refrigeration pipe (404) extends to the outside left side of the heat dissipation box (206) and is connected with the wind box (401) in a through mode, the other end of the refrigeration pipe (404) is connected with the gas outlet pipe (211) in a through mode, and cooling liquid is injected into the heat dissipation box (206).

6. A noise reduction assembly for a screw chiller as set forth in claim 5, wherein Rectangular blocks (405) are fixedly arranged on the front and rear outer walls of the wind box (401), and the two rectangular blocks (405) are fixedly screwed with the box (201).

7. The noise reduction assembly of a screw water chiller of claim 1, wherein, The front side outer wall of the maintenance soundproof door (203) is fixedly provided with a pull handle (5).

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