Cooling air shutter air port silencer

Abstract

The utility model relates to the technical field of cooling auxiliary equipment, in particular to a cooling air shutter air port silencer which comprises an air inlet frame, a silencing shutter is arranged in the air inlet frame, the silencing shutter comprises a plurality of sets of hollow shutter blades rotationally connected to the interior of the air inlet frame, the outer ends of the hollow shutter blades are fixedly connected with windward parts, and the windward parts are fixedly connected with the outer ends of the hollow shutter blades. The top end of the windward part has radian, an auxiliary air opening is formed in the bottom end of the windward part, a small filter screen is fixedly connected into the auxiliary air opening, a sound absorption cotton frame is arranged on one side of the small filter screen and fixedly connected to the bottom wall of the hollow louver blade, a groove is formed in the surface of the sound absorption cotton frame, and sound absorption cotton is fixedly connected to the surface of the sound absorption cotton frame. An air outlet is formed in one side of the sound absorption cotton frame and formed in the end, away from the windward part, of the hollow louver blade. According to the utility model, the air pressure is further reduced through the area difference between the auxiliary air port and the air outlet, and the air is further silenced by the sound absorption cotton frame when passing through the sound absorption cotton frame, so that the noise pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling auxiliary equipment, in particular to a cooling air louver air outlet muffler. Background Art

[0002] Conventional open cross-flow cooling towers are equipped with fans at the top for air intake during use. However, in the process of air intake through the louvers, debris is easily adsorbed into the air inlet of the filler, causing blockage of the filler honeycomb and affecting the thermal performance of the cooling tower.

[0003] After searching, the patent document with publication number CN217844817U proposes an air inlet louver device for an open cross-flow cooling tower: the utility model discloses an air inlet louver device for an open cross-flow cooling tower, which relates to the technical field of cooling towers, including a vertical beam in a frame, wherein at least two rows of louvers are arranged in the frame; the extension shafts at both ends of the louvers are arranged through the mounting holes on the corresponding vertical beams; an adjustment plate that can be moved up and down is arranged between the two adjacent vertical beams, and sockets are distributed on the adjustment plate; a lever is arranged on the side wall of the extension shaft; the lever is inserted into the corresponding socket; a cover plate is installed on the outer walls of the two adjacent vertical beams; a long strip-shaped adjustment hole is opened on the cover plate; the adjustment rod on the adjustment plate is arranged through the adjustment hole.

[0004] The above technical document uses shutters to prevent external dust and impurities from entering the interior of the fan, but since the noise will be transmitted through the ventilation and heat dissipation vents, it does not have the effect of silencing and reducing noise, which will cause excessive noise and affect normal work and life.

[0005] Therefore, it is necessary to invent a cooling air louver air outlet muffler to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a cooling air louver air outlet silencer, which reduces the noise at the silencer louver through the cooperation of the air inlet frame and the silencer louver, so as to solve the problem in the prior art that the noise can be transmitted through the ventilation and heat dissipation outlet, has no sound-absorbing and noise-reducing effect, causes excessive noise, and affects normal work and life.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cooling air louver air outlet silencer, comprising an air inlet frame, wherein a silencer louver is arranged inside the air inlet frame, and the silencer louver comprises a plurality of groups of hollow louver blades rotatably connected to the inside of the air inlet frame, the outer end of the hollow louver blade is fixedly connected to a windward part, the top of the windward part has an arc, the bottom end of the windward part is provided with an auxiliary air outlet, a small filter is fixedly connected to the inside of the auxiliary air outlet, a sound-absorbing cotton frame is arranged on one side of the small filter and the sound-absorbing cotton frame is fixedly connected to the bottom wall of the hollow louver blade, a groove is arranged on the surface of the sound-absorbing cotton frame, sound-absorbing cotton is fixedly connected to the surface of the sound-absorbing cotton frame, an air outlet is arranged on one side of the sound-absorbing cotton frame, and the air outlet is opened at the end of the hollow louver blade away from the windward part.

[0008] Preferably, a connecting piece is fixedly connected to one side of the hollow louver, a connecting rope is fixedly connected to the inside of the connecting piece, a control box is provided at the top end of the connecting rope, and the control box is fixedly connected to one side of the air inlet frame.

[0009] Preferably, a rotating wheel and a control rod are installed inside the control box, the connecting rope is wound around the control rod, one end of the control rod is fixedly connected to the rotating wheel, and a pull rope is sleeved on the outer side of the rotating wheel.

[0010] Preferably, a rain shield is fixedly connected to one side of the air inlet frame, a filter box is fixedly connected to one side of the air inlet frame, and an adsorption net is installed inside the filter box.

[0011] Preferably, two groups of connecting plates are fixedly connected to one side of the air inlet frame, two groups of driven wheels are rotatably connected to one side of the connecting plate, and outer sides of the driven wheels are in contact with the bottom of the connecting rope.

[0012] Preferably, two groups of placement grooves are provided on one side of the air inlet frame, and the bottom ends of the connecting ropes are located inside the placement grooves.

[0013] Preferably, a tightening spring is fixedly connected to the inner side wall of the accommodating groove, and one end of the tightening spring is fixedly connected to the tail end of the connecting rope.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. Through the cooperation of the air inlet frame and the sound-absorbing louver, when the wind flows through the hollow louver, the wind resistance and noise are first reduced by the curvature of the windward part. At the same time, the area difference between the auxiliary air outlet and the air outlet is further reduced. When the wind passes through the sound-absorbing cotton frame, it is further silenced by the sound-absorbing cotton frame, thereby reducing noise pollution;

[0016] 2. Through the coordination of the connecting rope, connecting plate, driven wheel and other parts, the elasticity of the tightening spring is used to keep the connecting rope in a taut state, and the wear of the connecting rope is reduced through the connecting plate and the driven wheel, thereby limiting the vibration amplitude of the hollow louver blades following the wind flow and further reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall first-view structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0020] Figure 3 This is a schematic diagram of the internal structure of the sound-absorbing shutter of the utility model;

[0021] Figure 4 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 5 It is a schematic diagram of the tightening spring structure of the utility model.

[0023] Description of reference numerals:

[0024] 1. Air inlet frame; 2. Noise-absorbing louver; 201. Hollow louver blade; 202. Windward part; 203. Auxiliary air outlet; 204. Small filter; 205. Sound-absorbing cotton rack; 206. Air outlet; 3. Connecting rope; 4. Pull rope; 5. Connecting piece; 6. Control box; 7. Rain shield; 8. Filter box; 9. Adsorption net; 10. Connecting plate; 11. Driven wheel; 12. Mounting groove; 13. Tightening spring. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figure 1-5A cooling air louver vent silencer shown in the figure comprises an air inlet frame 1, a silencer louver 2 is arranged inside the air inlet frame 1, the silencer louver 2 comprises a plurality of groups of hollow louver blades 201 rotatably connected to the inside of the air inlet frame 1, the outer end of the hollow louver blade 201 is fixedly connected to a windward portion 202, the top of the windward portion 202 has an arc, and the arc is used to reduce wind resistance, thereby reducing the wind pressure on the hollow louver blade 201, and further reducing the vibration caused by the wind pressure, an auxiliary air outlet 203 is provided at the bottom end of the windward portion 202, a small filter 204 is fixedly connected inside the auxiliary air outlet 203, the ventilation effect is improved by the auxiliary air outlet 203, and the small filter 204 is used to prevent a large amount of dust from pouring in, and a sound-absorbing cotton frame 205 is arranged on one side of the small filter 204 and the sound-absorbing cotton The frame 205 is fixedly connected to the bottom wall of the hollow louver 201, and a groove is provided on the surface of the sound-absorbing cotton frame 205. The surface of the sound-absorbing cotton frame 205 is fixedly connected with sound-absorbing cotton. The contact area between the sound-absorbing cotton and the wind is increased by the groove, thereby improving the effect. An air outlet 206 is provided on one side of the sound-absorbing cotton frame 205. The air outlet 206 is opened at one end of the hollow louver 201 away from the windward part 202. Through the cooperation of the air inlet frame 1 and the sound-absorbing louver 2, when the wind flows through the hollow louver 201, the wind resistance and noise are first reduced by the curvature of the windward part 202. At the same time, the wind pressure is further reduced by the area difference between the auxiliary air port 203 and the air outlet 206, and the wind is further silenced by the sound-absorbing cotton frame 205 when passing through the sound-absorbing cotton frame 205, thereby reducing noise pollution.

[0027] Refer to the instruction manual Figure 1-5 A connecting piece 5 is fixedly connected to one side of the hollow louver 201, and the connecting piece 5 is used to drive the hollow louver 201 to adjust the angle. A connecting rope 3 is fixedly connected to the inside of the connecting piece 5, and the connecting piece 5 is controlled by the connecting rope 3. A control box 6 is provided at the top of the connecting rope 3, and the control box 6 is fixedly connected to one side of the air inlet frame 1. A rotating wheel and a control rod are installed inside the control box 6. The connecting rope 3 is wound around the control rod, and one end of the control rod is fixedly connected to the rotating wheel. A pull rope 4 is provided on the outer side of the rotating wheel. The pull rope 4 drives the rotating wheel and the control rod to rotate and adjust the connecting rope 3. A rain shield 7 is fixedly connected to one side of the air inlet frame 1. The rain shield 7 is used to prevent rainwater from penetrating into the interior and causing corrosion. A filter box 8 is fixedly connected to one side of the air inlet frame 1, and an adsorption net 9 is installed inside the filter box 8. The wind is re-filtered by the cooperation of the filter box 8 and the adsorption net 9.

[0028] Refer to the instruction manual Figure 1-5Two groups of connecting plates 10 are fixedly connected to one side of the air inlet frame 1, and two groups of driven wheels 11 are rotatably connected to one side of the connecting plate 10. The outer side of the driven wheel 11 contacts the bottom of the connecting rope 3, so that the connecting rope 3 is supported by the driven wheel 11. Two groups of mounting grooves 12 are opened on one side of the air inlet frame 1, and the bottom end of the connecting rope 3 is located inside the mounting groove 12. The inner side wall of the mounting groove 12 is fixedly connected with a tightening spring 13, which shrinks toward the middle in a natural state. One end of the tightening spring 13 is fixedly connected to the tail end of the connecting rope 3. Through the cooperation of the connecting rope 3, the connecting plate 10, the driven wheel 11 and other parts, the elasticity of the tightening spring 13 is used to keep the connecting rope 3 in a taut state, and the wear degree of the connecting rope 3 is reduced through the connecting plate 10 and the driven wheel 11, thereby limiting the vibration amplitude of the hollow louver 201 following the wind flow, and further reducing the noise.

[0029] How this utility works:

[0030] Refer to the instruction manual Figure 1-5 When the wind passes through the inside of the air inlet frame 1, the pull rope 4 is first pulled, and the pull rope 4 drives the rotating wheel and the control rod to rotate and adjust the connecting rope 3, thereby changing the angle of the hollow louver 201 to prevent external dust from entering. Then, when the wind flows through the hollow louver 201, the curvature of the windward part 202 is first used to reduce the wind resistance, and then the area difference between the auxiliary air outlet 203 and the air outlet 206 is used to further reduce the wind pressure while increasing the ventilation volume, and the wind is silenced by the sound-absorbing cotton frame 205 when passing through the sound-absorbing cotton frame 205, thereby reducing noise pollution, thereby reducing the wind pressure on the hollow louver 201, and then reducing the vibration caused by the wind pressure, and then using the groove of the sound-absorbing cotton frame 205 to increase the contact area between the sound-absorbing cotton and the wind to improve the sound-absorbing effect;

[0031] Refer to the instruction manual Figure 1-5 The elasticity of the tightening spring 13 is used to keep the connecting rope 3 in a taut state, and the bottom of the connecting rope 3 is maintained at a certain angle through the connecting plate 10 and the driven wheel 11. The connecting rope 3 is prevented from contacting the surface of the air inlet frame 1 by the rolling of the driven wheel 11 to reduce the degree of wear of the connecting rope 3, thereby extending the service life of the connecting rope 3 and limiting the vibration amplitude of the hollow louver 201 following the wind flow, further reducing noise.

[0032] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cooling air louver air outlet muffler, comprising an air inlet frame (1), characterized in that: The air inlet frame (1) is provided with a sound-absorbing louver (2) inside, the sound-absorbing louver (2) comprises a plurality of groups of hollow louver blades (201) rotatably connected to the inside of the air inlet frame (1), the outer ends of the hollow louver blades (201) are fixedly connected to a windward portion (202), the top end of the windward portion (202) has an arc, the bottom end of the windward portion (202) is provided with an auxiliary air outlet (203), the interior of the auxiliary air outlet (203) is fixedly connected to a small filter screen (204) ), a sound-absorbing cotton frame (205) is provided on one side of the small filter screen (204), and the sound-absorbing cotton frame (205) is fixedly connected to the bottom wall of the hollow louver (201), a groove is provided on the surface of the sound-absorbing cotton frame (205), and sound-absorbing cotton is fixedly connected to the surface of the sound-absorbing cotton frame (205), and an air outlet (206) is provided on one side of the sound-absorbing cotton frame (205), and the air outlet (206) is opened at one end of the hollow louver (201) away from the windward portion (202).

2. The cooling air louver outlet muffler according to claim 1, characterized in that: A connecting piece (5) is fixedly connected to one side of the hollow louver (201), a connecting rope (3) is fixedly connected inside the connecting piece (5), a control box (6) is provided at the top end of the connecting rope (3), and the control box (6) is fixedly connected to one side of the air inlet frame (1).

3. The cooling air louver outlet muffler according to claim 2, characterized in that: A rotating wheel and a control rod are installed inside the control box (6), the connecting rope (3) is wound around the control rod, one end of the control rod is fixedly connected to the rotating wheel, and a pull rope (4) is sleeved on the outer side of the rotating wheel.

4. The cooling air louver outlet muffler according to claim 1, characterized in that: A rain shield (7) is fixedly connected to one side of the air inlet frame (1), a filter box (8) is fixedly connected to one side of the air inlet frame (1), and an adsorption net (9) is installed inside the filter box (8).

5. The cooling air louver outlet muffler according to claim 1, characterized in that: Two groups of connecting plates (10) are fixedly connected to one side of the air inlet frame (1), and two groups of driven wheels (11) are rotatably connected to one side of the connecting plate (10), wherein the outer sides of the driven wheels (11) are in contact with the bottom of the connecting rope (3).

6. The cooling air louver outlet muffler according to claim 5, characterized in that: Two groups of placement grooves (12) are provided on one side of the air inlet frame (1), and the bottom end of the connecting rope (3) is located inside the placement groove (12).

7. The cooling air louver outlet muffler according to claim 6, characterized in that: A tightening spring (13) is fixedly connected to the inner side wall of the placement groove (12), and one end of the tightening spring (13) is fixedly connected to the tail end of the connecting rope (3).

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