Noise reduction structure of double-source tower

Abstract

The utility model relates to the technical field of double-source towers, in particular to a noise reduction structure of a double-source tower, which comprises a double-source tower body, an air duct arranged at the top of the double-source tower body, a motor mounted on a motor support, a speed reducer cover mounted at the center of the top of a support frame, a speed reducer mounted on the speed reducer cover, and fan blades arranged on a fan support. The air outlet is provided with a flow guide fan cover, the double-source tower body is also provided with a filler, an air inlet shutter is arranged below the filler, the double-source tower body is provided with a water tank, a flow guide grid is arranged between the water tank and the filler, and an anti-floating baffle is arranged between the flow guide grid and the filler. According to the utility model, the airflow is effectively guided, the noise is reduced, the turbulent flow state is avoided during air inlet, the air inlet and outlet resistance is reduced to the greatest extent, the air pressure distribution at the inlet and the outlet is more uniform, the noise generated by the fan is reduced, the drifting of water is reduced by the anti-drifting baffle, the noise generated by water flow in the tower is reduced, and the practicability is strong.

Description

Technical Field

[0001] The utility model relates to the technical field of dual-source towers, in particular to a noise reduction structure of a dual-source tower. Background Art

[0002] The dual-source tower is the core equipment of the dual-source tower heat pump system. However, due to the ventilation and heat exchange conditions, the dual-source tower is usually placed in outdoor open spaces or on roofs. Its noise will affect surrounding buildings and the environment, especially when it is close to residential areas. Therefore, whether it can meet the noise requirements of the surrounding environment has a key impact on the promotion and application of the dual-source tower heat pump system.

[0003] Currently, effective noise reduction methods include passive and active noise reduction. Traditional passive noise reduction methods primarily rely on measures such as sound-absorbing devices and soundproof walls. These retrofits are expensive and often affect air flow, thereby reducing the heat transfer performance of dual-source towers. Active noise reduction, by contrast, should be the preferred noise reduction method. Since the primary noise contribution of dual-source towers is fan noise, active noise reduction is primarily achieved through optimization of the tower's configuration and fan speed control. Utility Model Content

[0004] In response to the problems in the related technology, the utility model proposes a noise reduction structure of a dual-source tower to overcome the above-mentioned technical problems existing in the existing related technology. The purpose of the utility model is to effectively guide the airflow, reduce noise, and avoid the formation of turbulent state when the air enters through the air guide tube, filler, wind guide cover and anti-drift baffle, so as to minimize the resistance of the inlet and outlet air, make the inlet and outlet air pressure distribution more uniform, reduce the noise generated by the fan, and the anti-drift baffle reduces the drift of water and reduces the noise generated by the water flow in the tower. It is highly practical.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a noise reduction structure of a dual-source tower, comprising a dual-source tower body, an air guide tube is provided on the top of the dual-source tower body, a support frame is installed on the top of the air guide tube, a motor bracket is installed on one side of the top of the support frame, a motor is installed on the motor bracket, a reducer cover is installed at the top center of the support frame, a reducer is installed on the reducer cover, the motor is connected to the reducer, a fan bracket is provided below the reducer, fan blades are provided on the fan bracket, the output end of the reducer is fixedly connected to the fan blades, the fan blades and the fan bracket are movably connected, an air outlet is provided on the top of the dual-source tower body, a guide air cover is provided on the air outlet, a filler is also provided on the dual-source tower body, and an air inlet louver is provided below the filler.

[0006] Preferably, a water trough is provided on the dual-source tower body, a guide grid is provided between the water trough and the filler, and an anti-drift baffle is provided between the guide grid and the filler.

[0007] Preferably, a panel is also provided on the dual-source tower body.

[0008] Preferably, the angle of the fan blade is 25-35°, and the fan blade is arranged at the center of the dual-source tower body.

[0009] Preferably, the height of the air guide tube is 500-800 mm.

[0010] Preferably, a grille guard 10 is further provided on the top of the air guide tube.

[0011] Preferably, the inclination angle between the air inlet louvers and the filler is 45-55°, a plurality of the air inlet louvers are provided, and the distance between two adjacent air inlet louvers is 80-110 mm.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model is a noise reduction structure for a dual-source tower. By arranging an air guide tube, fan blades, fillers, air guide covers, air inlet louvers and anti-drift baffles, the structure effectively guides the airflow, reduces noise, and avoids the formation of turbulent state when the air enters. The resistance of the air inlet and outlet is reduced as much as possible, the inlet and outlet air pressure distribution is made more uniform, and the noise generated by the fan is reduced. The anti-drift baffle reduces the drift of water and reduces the noise generated by the water flow in the tower. The utility model has strong practicality and good noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the air guide tube of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the utility model air guide cover;

[0017] Figure 4 This is a schematic structural diagram of the anti-drift baffle of the utility model.

[0018] In the accompanying drawings: 1. Dual-source tower body; 2. Air guide duct; 3. Support frame; 4. Motor bracket; 5. Motor; 6. Reducer cover; 7. Reducer; 8. Fan bracket; 9. Fan blades; 10. Grille guard; 11. Filler; 12. Air outlet; 13. Air guide cover; 14. Air inlet louver; 15. Anti-drift baffle; 16. Panel. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] Example 1

[0021] See also Figure 1-4 The utility model proposes a technical solution for the noise reduction structure of a dual-source tower: a noise reduction structure of a dual-source tower, comprising a dual-source tower body 1, an air guide tube 2 is provided on the top of the dual-source tower body 1, a support frame 3 is installed on the top of the air guide tube 2, a motor bracket 4 is installed on one side of the top of the support frame 3, a motor 5 is installed on the motor bracket 4, a reducer cover 6 is installed at the top center of the support frame 3, a reducer 7 is installed on the reducer cover 6, the motor 5 is connected to the reducer 7, a fan bracket 8 is provided below the reducer 7, a fan blade 9 is provided on the fan bracket 8, the output end of the reducer 7 is fixedly connected to the fan blade 9, and the fan blade 9 is movably connected to the fan bracket 8. An air outlet 12 is provided at the top of the body 1, and an air guide hood 13 is provided on the air outlet 12. A filler 11 is also provided on the dual-source tower body 1, and an air inlet louver 14 is provided below the filler 11. Specifically, the direction of heat transfer in the dual-source tower body 1 is from air into the solution, and the air inlet louver 14 and the filler 11 have the same inclination angle of 45 to 55 degrees, the spacing between the air inlet louvers 14 is 100 mm, and the width of the air inlet louvers 14 is 60 mm. This structure promotes the cross flow of the liquid film on both sides of the filler 11, avoids the formation of turbulent state when the air is introduced, and reduces the noise generated by the air introduction. When the air introduction speed is 3 m / s, the noise of the tower can be effectively reduced, and the heat exchange performance is also good.

[0022] In this embodiment, the starting motor 5 drives the fan blade 9 connected to the reducer 7 to rotate; the diameters of the fan blade 9 and the air guide cover are determined in combination with the air volume, the distance between the fan blade 9 and the air guide tube 2 is controlled within the range of 150 to 200 mm, the angle of the fan blade 9 is 30°, the height of the air guide tube 2 is 700 mm, the fan blade 9 is placed in the center of the air guide tube 2, and is 400 mm away from the upper motor bracket. After testing, the height of the air guide 2 should be able to effectively guide the airflow and reduce noise;

[0023] By setting the air guide cover 13: the air guide cover 13 is 400mm high and realizes air diversion through the V-shaped baffle on the upper part, its ventilation rate is guaranteed to be greater than 85%, which can reduce the resistance of air inlet and outlet to the greatest extent possible, make the inlet and outlet air pressure distribution more uniform, reduce the noise generated by the fan, and ensure the normal design ventilation requirements of the dual-source tower body 1, ensuring that the dual-source tower is always in efficient operation;

[0024] Wind speed:

[0025] G-Required air volume (can be found based on the selected fan characteristic curve)

[0026] F i --Cross-sectional area of ​​different parts of the tower (㎡)

[0027] ρ m--The average density of moist air in the tower (kg / m 3 )

[0028] Local resistance of each part of the tower from the cold air inlet to the outlet:

[0029] ε i --Local resistance coefficient.

[0030] See also Figure 1 As shown, further, a water trough is provided on the dual-source tower body 1 , a guide grid is provided between the water trough and the filler 11 , and an anti-drift baffle 15 is provided between the guide grid and the filler 11 .

[0031] In this embodiment, the angle of the guide grid is controlled at 30 to 45 degrees, so that the water condenses and falls after contacting the guide grid, reducing the noise of the water flow in the tower. The anti-drift baffle 15 is fixed on both sides of the left and right edges of the water tank to block the gap between the filler 11 and the water tank. The design of the anti-drift baffle 15 reduces the drift of water and reduces the noise generated by the water flow in the tower.

[0032] See also Figure 1 As shown, further, a panel 16 is provided on the dual-source tower body 1 .

[0033] See also Figure 1-2 As shown, further, the angle of the fan blade 9 is 25-35°, and the fan blade 9 is arranged at the center of the dual-source tower body 1.

[0034] See also Figure 1-2 As shown, further, the height of the air guide tube 2 is 500-800 mm.

[0035] See also Figure 1-2 As shown, further, a grille guard 10 is provided on the top of the air guide tube 2.

[0036] See also Figure 1 As shown, further, the inclination angle of the air inlet louvers 14 and the filler 11 is 45-55 degrees, a plurality of air inlet louvers 14 are provided, and the distance between two adjacent air inlet louvers 14 is 80-110 mm.

[0037] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction structure of a dual-source tower, characterized in that: The invention comprises a double-source tower body (1), wherein an air guide tube (2) is provided on the top of the double-source tower body (1), a support frame (3) is installed on the top of the air guide tube (2), a motor bracket (4) is installed on one side of the top of the support frame (3), a motor (5) is installed on the motor bracket (4), a reducer cover (6) is installed at the center of the top of the support frame (3), a reducer (7) is installed on the reducer cover (6), the motor (5) is connected to the reducer (7), and the reducer (7) is connected to the reducer (7). ) is provided below the dual-source tower body (1), a fan bracket (8) is provided on the fan bracket (8), an output end of the reducer (7) is fixedly connected to the fan blade (9), the fan blade (9) and the fan bracket (8) are movably connected, an air outlet (12) is provided at the top of the dual-source tower body (1), a guide wind cover (13) is provided on the air outlet (12), a filler (11) is further provided on the dual-source tower body (1), and an air inlet louver (14) is provided below the filler (11).

2. The noise reduction structure of a dual-source tower according to claim 1, characterized in that: A water trough is provided on the dual-source tower body (1), a flow guide grid is provided between the water trough and the filler (11), and an anti-drift baffle (15) is provided between the flow guide grid and the filler (11).

3. The noise reduction structure of a dual-source tower according to claim 1, characterized in that: A panel (16) is also provided on the dual-source tower body (1).

4. The noise reduction structure of a dual-source tower according to claim 1, characterized in that: The angle of the fan blade (9) is 25-35 degrees, and the fan blade (9) is arranged at the center of the dual-source tower body (1).

5. The noise reduction structure of a dual-source tower according to claim 1, characterized in that: The height of the air guide tube (2) is 500-800 mm.

6. The noise reduction structure of a dual-source tower according to claim 1, characterized in that: A grille protection net (10) is also provided on the top of the air guide tube (2).

7. The noise reduction structure of a dual-source tower according to claim 1, characterized in that: The inclination angle of the air inlet louvers (14) and the filler (11) is 45 to 55 degrees. A plurality of air inlet louvers (14) are provided, and the spacing between two adjacent air inlet louvers (14) is 80 to 110 mm.

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