Silencing device for air outlet of control room of mixing plant
By installing a silence assembly and a fan at the air outlet of the mixing station control room, it absorbs noise and discharges heat, solving the problem of noise pollution in the mixing station control room, and achieving noise reduction and heat discharge.
Patent Information
- Application Number
- CN202422452100.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-10
AI Technical Summary
The air outlet of the mixing station control room will diffuse mechanical noise during heat dissipation, resulting in noise pollution and affecting the environment and work and life.
The air outlet duct is equipped with a sound silence assembly, including a sound silence box and a sound silence coating, absorbs noise through sound sucking holes and porous structures, and uses a fan to discharge heat, while using shock absorbing rubber plates and insect shading cloth to reduce vibration and mosquito invasion.
It effectively reduces the possibility of noise spreading outdoors, reduces the impact of noise on the environment, and quickly discharges heat to prevent mosquitoes from invading.
Smart Images
Figure CN223153694U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of noise elimination equipment for mixing plants, and particularly to a noise elimination device for the air outlet of a mixing plant control room. Background Art
[0002] The control room of a mixing plant is a crucial part of a concrete mixing plant. It houses various control and monitoring devices, enabling operators to monitor and manage each system of the mixing plant in a centralized area.
[0003] The control room of a mixing plant is usually equipped with necessary electronic control devices, such as electronic control devices, batching control devices, air pumps, and related switching power supply devices. These devices together constitute the control system of the concrete mixing plant, which is usually composed of an electronic computer, a program controller, a batching meter, a switching power supply device, etc., achieving comprehensive control and monitoring of the concrete mixing process.
[0004] When various devices in the mixing plant control room are working, especially some driven by motors will generate a large amount of mechanical noise, and at the same time, the motors will also generate a large amount of heat when working. Therefore, the mixing plant control room usually has an air outlet for heat dissipation. However, the traditional air outlet will also spread the mechanical noise while dissipating heat, thus causing noise pollution to the environment and affecting people's normal work and life, which has deficiencies. Utility Model Content
[0005] In order to improve the problem of noise pollution caused by the spread of mechanical noise from the air outlet of the mixing plant control room, the present application provides a noise elimination device for the air outlet of the mixing plant control room.
[0006] A noise elimination device for the air outlet of a mixing plant control room provided by the present application adopts the following technical solutions:
[0007] A noise elimination device for the air outlet of a mixing plant control room includes an air outlet pipe, the air outlet pipe is arranged at the air outlet of the mixing plant control room, a fan electrically connected to the control system is arranged on the air outlet pipe, the air outlet of the fan points to the side of the air outlet pipe facing the outside, and a noise elimination component is arranged on the air outlet pipe, and the noise elimination component is used for absorbing the noise propagated to the air outlet pipe.
[0008] By adopting the above technical solutions, workers start the fan through the control system. The fan discharges the heat generated by the mechanical equipment in the mixing plant control room to the outside. At the same time, the noise generated when mechanical equipment such as motors in the mixing plant control room is working will be propagated to the air outlet pipe, and the noise elimination component adsorbs the noise propagated to the air outlet pipe, thereby reducing the possibility of the noise being propagated to the outside, and further reducing the impact of the noise on people's work and life.
[0009] Optionally, a shock-absorbing rubber plate is provided on the air outlet pipe, and the fan is arranged on the shock-absorbing rubber plate.
[0010] By adopting the above technical solution, the shock-absorbing rubber plate can be made of hard rubber material. When the control system starts the fan, the mechanical vibration generated by the fan will be absorbed by the shock-absorbing rubber plate, thereby reducing the impact of vibration noise generated when the fan is working.
[0011] Optionally, the silencer assembly includes a plurality of silencer boxes disposed in the air outlet duct, wherein the plurality of silencer boxes are arranged in sequence along the radial direction of the axis of the air outlet duct, and an exhaust channel is formed between two adjacent silencer boxes. The silencer box is hollow inside, and sound absorption holes are opened on the silencer box.
[0012] By adopting the above technical solution, when the fan pushes the indoor heat to be discharged to the outside through the exhaust channel, the mechanical noise will be transmitted to the silencer box, and then transmitted to the internal cavity of the silencer box through the sound-absorbing holes on the silencer box. The noise will continue to propagate and return inside the silencer box, continuously consuming the energy of the noise, thereby achieving the effect of silencing.
[0013] Optionally, the interior of the sound-absorbing box is filled with sound-absorbing cotton.
[0014] By adopting the above technical solution, the noise transmitted to the inside of the silencer box will be continuously reflected, refracted and absorbed by the porous structure in the silencer cotton, so as to achieve the effect of rapid absorption of noise and silencer.
[0015] Optionally, the cross-section of the silencer box is V-shaped, and in the radial direction along the axis of the air outlet pipe, the V-shaped tip of the silencer box located below is located in the V-shaped opening groove of the silencer box located above, and the sound absorption hole is located in the V-shaped groove of the silencer box.
[0016] By adopting the above technical solution, the V-shaped silencer box can maximize the blocking effect on the noise propagation path without affecting the discharge of heat through the exhaust channel, so that the silencer box can absorb more noise, thereby reducing the possibility of noise being transmitted from the air outlet pipe.
[0017] Optionally, an insect-proof curtain is provided on the side of the silencer box facing away from the fan, and the insect-proof curtain is used to shield the exhaust passage between two adjacent silencer boxes.
[0018] By adopting the above technical solution, when the fan is working, the airflow generated by the fan will blow up the insect-proof curtain when it flows out through the exhaust channel, so that the lower end of the insect-proof curtain is away from the exhaust channel, and the indoor heat can be quickly discharged through the exhaust channel. When the fan stops working, the insect-proof curtain falls under the action of gravity and blocks the exhaust channel, thereby reducing the possibility of outdoor mosquitoes flying into the room through the exhaust channel.
[0019] Optionally, the silencer assembly includes a plurality of partition plates arranged in the air outlet duct, the plurality of partition plates are arranged in sequence along the radial direction of the axis of the air outlet duct, there is a spacing between two adjacent partition plates, a plurality of silencer plates are arranged on opposite sides of two adjacent partition plates, the silencer plates between two adjacent partition plates correspond to each other one by one and there is a spacing between them, the plurality of silencer plates are arranged along the axial direction of the air outlet duct, and the silencer plates are arranged inclined toward the fan along the direction from the fan to the air outlet duct.
[0020] By adopting the above technical solution, when the fan pushes the indoor heat to be discharged to the outside through the gap between two adjacent partitions, the mechanical noise will be continuously reflected and refracted between the silencer and the partition under the obstruction of the silencer. In this process, the noise is continuously consumed, thereby achieving the effect of silencer.
[0021] Optionally, the partition plate and the silencer plate are both sprayed with sound-absorbing paint.
[0022] By adopting the above technical solution, the noise transmitted to the partition plate and the sound-absorbing plate will be absorbed by the sound-absorbing coating. Relying on the high density and viscoelastic properties of the sound-absorbing coating, the noise is consumed in the form of heat generation, thereby achieving the effect of rapid sound absorption.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. The worker starts the fan through the control system, and the fan discharges the heat generated by the mechanical equipment in the control room of the mixing station to the outside. At the same time, the noise generated by the motor and other mechanical equipment in the control room of the mixing station will be transmitted to the outlet pipe. The noise reduction component absorbs the noise transmitted to the outlet pipe, thereby reducing the possibility of noise transmission to the outside, thereby reducing the impact of noise on people's work and life;
[0025] 2. When the fan pushes the indoor heat to be discharged to the outside through the exhaust channel, the mechanical noise will be transmitted to the silencer box, and then transmitted to the internal cavity of the silencer box through the sound-absorbing holes on the silencer box. The noise will continue to propagate and return inside the silencer box, continuously consuming the energy of the noise, thereby achieving the effect of silencing;
[0026] 3. The V-shaped silencer box can maximize the blocking effect on the noise propagation path without affecting the discharge of heat through the exhaust channel, so that the silencer box can absorb more noise, thereby reducing the possibility of noise being transmitted from the air outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a structural diagram of Example 1 of the present application.
[0028] Figure 2 It is a cross-sectional view of the positional relationship among the air outlet pipe, the sound insulation box, and the sound insulation cotton in Embodiment 1 of the present application.
[0029] Figure 3 It is a cross-sectional view of the positional relationship among the air outlet pipe, the partition board, and the sound insulation board in Embodiment 2 of the present application.
[0030] Description of reference numerals: 1. Air outlet pipe; 2. Fan; 3. Sound insulation component; 31. Sound insulation box; 32. Exhaust passage; 33. Sound absorption hole; 34. Partition board; 35. Sound insulation board; 4. Shock-absorbing rubber plate; 5. Sound insulation cotton; 6. Insect-proof curtain cloth; 7. Sound insulation paint. Detailed implementation manners
[0031] The following further elaborates on the present application Figures 1 - 3 in conjunction with the accompanying drawings.
[0032] Embodiment 1 of the present application discloses a sound insulation device for the air outlet of a mixing plant control room.
[0033] Embodiment 1
[0034] Referring to Figure 1 , a sound insulation device for the air outlet of a mixing plant control room includes an air outlet pipe 1, which is bolted to the air outlet of the mixing plant control room. A shock-absorbing rubber plate 4 is bolted to the air outlet pipe 1. The shock-absorbing rubber plate 4 can be made of hard rubber material. A fan 2 electrically connected to the control system is bolted to the shock-absorbing rubber plate 4. The air outlet of the fan 2 points to the side of the air outlet pipe 1 facing the outside. A sound insulation component 3 is arranged on the air outlet pipe 1. The sound insulation component 3 is used to absorb the noise transmitted to the air outlet pipe 1.
[0035] Referring to Figure 1 and Figure 2 , the sound insulation component 3 includes a plurality of sound insulation boxes 31 welded inside the air outlet pipe 1. The plurality of sound insulation boxes 31 are arranged in sequence and evenly along the radial direction of the axis of the air outlet pipe 1. The cross-section of the sound insulation box 31 is V-shaped. Along the radial direction of the axis of the air outlet pipe 1, the V-shaped tip of one sound insulation box 31 located below is in the V-shaped opening groove of one sound insulation box 31 located above.
[0036] Referring to Figure 1 and Figure 2 , an exhaust passage 32 is formed between two adjacent sound insulation boxes 31. An insect-proof curtain cloth 6 is bonded to the side of the sound insulation box 31 facing away from the fan 2. The insect-proof curtain cloth 6 is used to block the exhaust passage 32 between two adjacent sound insulation boxes 31. The inside of the sound insulation box 31 is hollow and filled with sound insulation cotton 5. A number of sound absorption holes 33 communicating with the inside of the sound insulation box 31 are opened on the inner side of the V-shaped groove of the sound insulation box 31.
[0037] When equipment such as motors in the mixing plant control room is working, the equipment will generate a large amount of heat and noise. At this time, the staff starts the fan 2 through the control system. The heat generated by the indoor mechanical equipment is discharged to the outside through the exhaust passage 32. At the same time, the noise generated when the mechanical equipment such as motors in the mixing plant control room is working will also spread to the air outlet pipe 1.
[0038] The noise will spread into the exhaust passage 32 formed by two adjacent sound-absorbing boxes 31 in a V shape. Under the blocking effect of the sound-absorbing box 31, the noise will spread into the V-shaped groove of the sound-absorbing box 31 and pass through the sound-absorbing holes 33 at the V-shaped groove to spread into the interior of the sound-absorbing box 31. The noise is continuously reflected, refracted and absorbed through the porous structure inside the sound-absorbing cotton 5, so as to weaken the magnitude of the noise transmitted from the air outlet pipe 1.
[0039] When the fan 2 is working, when the air flow generated by the fan 2 flows out through the exhaust passage 32, it will blow up the insect-proof curtain 6, making the lower end of the insect-proof curtain 6 away from the exhaust passage 32. At this time, the heat in the room can be quickly discharged to the outside through the exhaust passage 32. When the fan 2 stops working, the insect-proof curtain 6 drops under the action of gravity and blocks the exhaust passage 32, thereby blocking the way for outdoor mosquitoes to fly into the room through the exhaust passage 32.
[0040] The implementation principle of Embodiment 1 is: When equipment such as motors in the mixing plant control room is working, the equipment will generate a large amount of heat and noise. At this time, the staff starts the fan 2 through the control system. The heat generated by the indoor mechanical equipment is discharged to the outside through the exhaust passage 32. At the same time, the noise generated when the mechanical equipment such as motors in the mixing plant control room is working will also spread to the air outlet pipe 1.
[0041] The noise will spread into the exhaust passage 32 formed by two adjacent sound-absorbing boxes 31 in a V shape. Under the blocking effect of the sound-absorbing box 31, the noise will spread into the V-shaped groove of the sound-absorbing box 31 and pass through the sound-absorbing holes 33 at the V-shaped groove to spread into the interior of the sound-absorbing box 31. The noise is continuously reflected, refracted and absorbed through the porous structure inside the sound-absorbing cotton 5, so as to weaken the magnitude of the noise transmitted from the air outlet pipe 1.
[0042] When the fan 2 is working, when the air flow generated by the fan 2 flows out through the exhaust passage 32, it will blow up the insect-proof curtain 6, making the lower end of the insect-proof curtain 6 away from the exhaust passage 32. At this time, the heat in the room can be quickly discharged to the outside through the exhaust passage 32. When the fan 2 stops working, the insect-proof curtain 6 drops under the action of gravity and blocks the exhaust passage 32, thereby blocking the way for outdoor mosquitoes to fly into the room through the exhaust passage 32.
[0043] Embodiment 2
[0044] Reference Figure 3, the difference between this embodiment and Embodiment 1 is that: the silencing component 3 includes a plurality of partition plates 34 welded in the air outlet pipe 1, and the plurality of partition plates 34 are arranged in sequence along the radial direction of the axis of the air outlet pipe 1, and there is a distance between two adjacent partition plates 34.
[0045] Reference Figure 3 , a plurality of sound-absorbing plates 35 are welded to the opposite sides of two adjacent partition plates 34, and the sound-absorbing plates 35 between two adjacent partition plates 34 correspond to each other one by one and there is a distance therebetween. The plurality of sound-absorbing plates 35 are arranged along the axis direction of the air outlet pipe 1, and the sound-absorbing plates 35 are arranged obliquely towards the fan 2 along the direction from the fan 2 to the air outlet pipe 1. Sound-absorbing coatings 7 are sprayed on both the partition plates 34 and the sound-absorbing plates 35.
[0046] The implementation principle of Embodiment 2 is as follows: when the fan 2 pushes the heat in the room to be discharged to the outside through the distance between two adjacent partition plates 34, the mechanical noise will be continuously reflected and refracted between the sound-absorbing plates 35 and the partition plates 34 under the blocking action of the sound-absorbing plates 35. At the same time, in this process, relying on its own high density and viscoelastic properties, the sound-absorbing coating 7 consumes the noise in the way of generating heat on the sound-absorbing coating 7, so as to weaken the magnitude of the noise transmitted from the air outlet pipe 1.
[0047] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered within the protection scope of this application.
Claims
1. A noise elimination device for the air outlet of a mixing station control room, characterized in that: It includes an air outlet pipe (1) which is arranged at the air outlet of the mixing station control room. A fan (2) electrically connected to the control system is arranged on the air outlet pipe (1). The air outlet of the fan (2) points to the side of the air outlet pipe (1) facing the outside. A sound absorption component (3) is arranged on the air outlet pipe (1), and the sound absorption component (3) is used to absorb the noise propagated to the air outlet pipe (1).
2. The noise elimination device for the air outlet of the mixing station control room according to claim 1, characterized in that: A shock-absorbing rubber plate (4) is arranged on the air outlet pipe (1), and the fan (2) is arranged on the shock-absorbing rubber plate (4).
3. The noise elimination device for the air outlet of the mixing station control room according to claim 1, wherein: The sound absorption component (3) includes a plurality of sound absorption boxes (31) arranged in the air outlet pipe (1). The plurality of sound absorption boxes (31) are arranged in sequence along the radial direction of the axis of the air outlet pipe (1). An exhaust passage (32) is formed between two adjacent sound absorption boxes (31). The inside of the sound absorption box (31) is hollow, and sound absorption holes (33) are formed on the sound absorption box (31).
4. The noise silencing device for the air outlet of the mixing plant control room according to claim 3, characterized in that: Sound absorption cotton (5) is filled inside the sound absorption box (31).
5. The noise elimination device for the air outlet of the mixing station control room according to claim 3, characterized in that: The cross section of the sound absorption box (31) is V-shaped. Along the radial direction of the axis of the air outlet pipe (1), the V-shaped tip of the sound absorption box (31) located below is in the V-shaped opening groove of the sound absorption box (31) located above, and the sound absorption holes (33) are located in the V-shaped groove of the sound absorption box (31).
6. The noise elimination device for the air outlet of the mixing station control room according to claim 3, characterized in that: A pest-proof curtain cloth (6) is arranged on the side of the sound absorption box (31) facing away from the fan (2), and the pest-proof curtain cloth (6) is used to block the exhaust passage (32) between two adjacent sound absorption boxes (31).
7. The noise elimination device for the air outlet of the mixing station control room according to claim 1, characterized in that: The sound absorption component (3) includes a plurality of partition plates (34) arranged in the air outlet pipe (1). The plurality of partition plates (34) are arranged in sequence along the radial direction of the axis of the air outlet pipe (1). There is a spacing between two adjacent partition plates (34). A plurality of sound absorption plates (35) are arranged on the opposite sides of two adjacent partition plates (34). The sound absorption plates (35) between two adjacent partition plates (34) correspond to each other one by one and there is a spacing. The plurality of sound absorption plates (35) are arranged along the axis direction of the air outlet pipe (1), and the sound absorption plates (35) are arranged obliquely towards the fan (2) along the direction from the fan (2) to the air outlet pipe (1).
8. The noise elimination device for the air outlet of the mixing station control room according to claim 7, characterized in that: Sound absorption coatings (7) are sprayed on both the partition plates (34) and the sound absorption plates (35).