Shock absorption and noise reduction air brake structure for ventilation system of air compressor unit in electrical room

Abstract

The utility model discloses a shock absorption and noise reduction air brake structure for an air compressor unit ventilation system in an electrical room, which comprises a shock absorption support fixed on a top plate of an electrical room module, a ventilation pipeline sequentially penetrates through the shock absorption support, a sound insulation structure and a dehumidification structure from bottom to top, and a servo motor is fixed on the ventilation pipeline through a motor support. A plurality of brake pads are installed in an air inlet of the ventilation pipeline, a motor shaft of the servo motor is connected with the left end of a center shaft of one brake pad through a coupler, a synchronous belt wheel is installed on each brake pad, and the servo motor drives the synchronous belt wheels to control the opening size of the brake pads. The dehumidification structure and the shock absorption and noise reduction structure are adopted to conduct shock absorption, noise reduction and dehumidification on the ventilation system of the air compressor unit module of the electrical room, corrosion to the air compressor unit module of the electrical room when the humidity in the air is too high is avoided, meanwhile, the shock absorption and noise reduction structure is adopted, noise and vibration generated during large-flow air inlet are reduced, and the service life of the air compressor unit module is prolonged. And noise pollution is reduced.

Description

Technical Field

[0001] The utility model relates to a ventilation system for marine engineering, in particular to a damping and noise reducing wind gate structure for a ventilation system of an air compressor unit in an electrical room. Background Art

[0002] During the use of the air compressor module in the marine electrical room, a large air flow is usually required at the beginning in order to quickly increase or decrease the temperature inside the electrical room module. However, due to the large noise and vibration generated when the large air flow is introduced, the internal noise of the ventilation system is relatively large, resulting in serious noise pollution. In addition, since the air compressor module in the electrical room of marine engineering is often used in the sea, the humidity is relatively high. When the air flow is large, the humidity inside the air compressor module in the electrical room will exceed the standard, causing corrosion to the air compressor unit in the electrical room and reducing the service life of the air compressor unit in the electrical room. At present, the shock-absorbing and noise-reducing structure mainly installs silencer cotton and shock-absorbing gaskets on the ventilation duct of the air compressor unit, which cannot effectively reduce the noise and vibration generated during ventilation. At the same time, dehumidification is carried out through the air conditioning system inside the electrical room, resulting in a waste of electricity. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and to provide a vibration-absorbing and noise-reducing damper structure for an electrical room air compressor unit ventilation system, which can reduce corrosion to an electrical room air compressor unit module and alleviate noise pollution.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model discloses a vibration-absorbing and noise-reducing wind brake structure for a ventilation system, comprising a vibration-absorbing support fixed on a top plate of an electrical room module, a ventilation duct sequentially passing through the vibration-absorbing support, a sound insulation structure and a dehumidification structure from bottom to top, a servo motor fixed on the motor support, the motor support fixed on the ventilation duct, a plurality of gate plates installed in an air inlet of the ventilation duct, a motor shaft of the servo motor connected to a left end of a central axis of a gate plate through a coupling, a synchronous pulley is respectively installed on the left end of the central axis of each gate plate, two adjacent synchronous pulleys are connected for transmission through a synchronous belt, and the plurality of gate plates are driven by the belt of the servo motor. The gates can overlap and contact with the inner wall of the ventilation duct to put the ventilation duct in a ventilation cut-off state, or the multiple gates can be separated from each other to allow the ventilation duct to be ventilated. The servo motor is connected to the computer through a communication cable; the dehumidification structure includes a dehumidification box fixed on the ventilation duct, and an electric heating wire is installed in the dehumidification box. The sound insulation structure includes a sound insulation box fixed on the ventilation duct, and sound-absorbing cotton is installed in the sound insulation box, and sound-absorbing holes are evenly arranged on the sound-absorbing cotton; the shock-absorbing support includes a shock-absorbing spring, and a pressure plate is installed on the upper part of the shock-absorbing spring, and the pressure plate is fixedly connected to the top plate of the electrical room module.

[0006] The utility model adopts a dehumidification structure and a shock-absorbing and noise-reducing structure to perform shock-absorbing, noise-reducing and dehumidification on the ventilation system of the air compressor unit module in the electrical room, thereby avoiding corrosion to the air compressor unit module in the electrical room when the humidity in the air is too high. At the same time, the shock-absorbing and noise-reducing structure is adopted to reduce the noise and vibration generated when a large amount of air is introduced, thereby alleviating noise pollution and improving the performance of the air compressor unit module in the electrical room. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the structure of a vibration-absorbing and noise-reducing wind damper for a ventilation system of the utility model;

[0008] Figure 2 for Figure 1 A view of the structure shown;

[0009] Figure 3 for Figure 1 Schematic diagram of the dehumidification structure in the structure shown;

[0010] Figure 4 for Figure 1 Schematic diagram of the sound insulation structure in the structure shown;

[0011] Figure 5 for Figure 1 Schematic diagram of the shock-absorbing support structure in the structure shown. DETAILED DESCRIPTION

[0012] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] As shown in the accompanying drawings, the utility model describes a shock-absorbing and noise-reducing wind gate structure for a ventilation system, comprising a shock-absorbing support 4 fixed (can be fixed by bolts 4-3) on the top plate 6 of the electrical room module, and the ventilation duct passes through the shock-absorbing support, the sound insulation structure and the dehumidification structure in sequence from bottom to top, that is, the sound insulation structure 3 and the dehumidification structure 2 are installed in sequence from bottom to top on the ventilation duct above the shock-absorbing support 4. The servo motor 7 is fixed to the motor support 10 by bolts, and the motor support 10 is fixed to the ventilation duct 1 by bolts. A plurality of gate plates 5 are installed in the air inlet of the ventilation duct. The motor shaft of the servo motor 7 is connected to the left end of the central axis of a gate plate 5 by a coupling, and a synchronous pulley 8 is respectively installed on the left end of the central axis of each gate plate 5. Two adjacent synchronous pulleys are connected for transmission by a synchronous belt 9. Driven by the servo motor, the plurality of gate plates 5 can overlap together and contact the inner wall of the ventilation duct 1 so that the ventilation duct is in a ventilation cut-off state, or the plurality of gate plates are separated from each other so that the ventilation duct can be ventilated. The servo motor 7 is connected to the computer through a communication cable.

[0014] The dehumidification structure 2 comprises a dehumidification box 2-1 fixed on the ventilation duct, and an electric heating wire 2-2 is installed in the dehumidification box 2-1.

[0015] The sound insulation structure 3 comprises a sound insulation box 3-1 fixed on the ventilation duct, a sound-absorbing cotton 3-2 is installed in the sound insulation box 3-1, and sound-absorbing holes 3-3 are evenly arranged on the sound-absorbing cotton 3-2;

[0016] The shock-absorbing support 4 includes a shock-absorbing spring 4-1, and a pressure plate 4-2 is installed on the upper part of the shock-absorbing spring 4-1. The pressure plate 4-2 is fixedly connected to the electrical room module top plate 6 by bolts 4-3.

[0017] The working principle of this system is as follows:

[0018] When the air compressor module in the electrical room is not working, the three groups of brake discs 5 overlap and contact the ventilation duct 1 in a closed state. When the air compressor module in the electrical room needs a large flow of air, the computer controls the servo motor 7 to rotate and drive the first group of brake discs 5 to rotate 90 degrees. At the same time, the servo motor 7 drives the first synchronous pulley 8 to rotate, and the second synchronous pulley drives the remaining synchronous pulleys to rotate through the synchronous belt 9, thereby driving the other two groups of brake discs 5 to rotate 90 degrees. At this time, the air passes through the ventilation duct 1 at the maximum flow rate and enters the dehumidification structure 2. The electric heating wire 2-2 inside the dehumidification mechanism 2 is heated to dry the air. , the air enters the sound insulation structure 3, the sound insulation structure 3 silences the noise generated by the large flow of air intake, the shock absorbing support 4 reduces the vibration generated by the large flow of air intake through the shock absorbing spring 4-1, and finally enters the air compressor unit module in the electrical room through the ventilation duct 1; and when the air compressor unit module in the electrical room needs a small flow of air intake, the computer controls the servo motor 7 to rotate, the servo motor 7 drives the first synchronous pulley 8, the first synchronous pulley drives the remaining synchronous pulleys to rotate through the synchronous belt 9, and drives the three sets of gate plates 5 to rotate to reduce the opening size, adjust the airflow size, thereby meeting the air intake demand of the air compressor unit module in the electrical room.

Claims

1. A damping and noise reducing air damper structure for a ventilation system, characterized in that: The invention comprises a shock-absorbing support (4) fixed on the top plate (6) of the electrical room module, a ventilation duct passing through the shock-absorbing support, the sound insulation structure (3) and the dehumidification structure (2) from bottom to top in sequence, a servo motor (7) fixed on the motor support (10), the motor support fixed on the ventilation duct (1), a plurality of gates (5) installed in the air inlet of the ventilation duct, the motor shaft of the servo motor connected to the left end of the central axis of a gate through a coupling, a synchronous pulley (8) is installed on the left end of the central axis of each gate, two adjacent synchronous pulleys are connected and transmitted by a synchronous belt (9), and the plurality of gates are connected in the servo motor. Driven by the motor, they can overlap and contact the inner wall of the ventilation duct to put the ventilation duct in a ventilation cutoff state, or multiple gates can be separated from each other to allow the ventilation duct to be ventilated. The servo motor is connected to the computer through a communication cable; the dehumidification structure includes a dehumidification box fixed on the ventilation duct, and an electric heating wire is installed in the dehumidification box; the sound insulation structure includes a sound insulation box fixed on the ventilation duct, and sound-absorbing cotton is installed in the sound insulation box, and sound-absorbing holes are evenly arranged on the sound-absorbing cotton; the shock-absorbing support includes a shock-absorbing spring, and a pressure plate is installed on the upper part of the shock-absorbing spring, and the pressure plate is fixedly connected to the top plate of the electrical room module.

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