Sound insulation screen with fan at air inlet
By designing a fan-equipped soundproof barrier at the air inlet of the cooling tower, combined with perforations and a silent fan, the problem of the soundproof barrier obstructing airflow is solved, achieving the effects of noise reduction and maintaining airflow, thereby improving the cooling efficiency and sound insulation of the cooling tower.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-12
AI Technical Summary
The soundproof barrier of existing cooling towers obstructs airflow at the air inlet, leading to a decrease in cooling efficiency.
Design an air inlet with a fan sound barrier, which combines perforations and a silent fan with the sound barrier components, including a perforated plate, a steel plate, glass cloth wrapped with glass wool, noise reduction stickers, a sound-absorbing cotton layer, a sound insulation felt layer, a polyurethane board layer, and a calcium silicate board layer, to ensure unobstructed airflow.
It effectively reduces noise transmission, maintains smooth airflow at the air inlet, and improves the cooling efficiency and sound insulation of the cooling tower.
Smart Images

Figure CN224230766U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power plant cooling tower technology, specifically to a soundproof screen with a fan at the air inlet. Background Technology
[0002] Cooling towers in power plants are crucial equipment for heat dissipation. During power generation, the thermal system generates a large amount of waste heat. If this waste heat is not dissipated in time, it will affect power generation efficiency and equipment safety. The main function of cooling towers is to transfer this waste heat to the air through heat exchange, thereby cooling the circulating water or other working media and ensuring the normal operation of the thermal system.
[0003] Currently, most noise reduction methods for cooling towers involve erecting sound barriers around the air inlet to absorb and reflect the noise generated during operation, thereby effectively reducing the noise intensity transmitted to the outside. However, during use, due to the lack of ventilation structure, the natural airflow at the air inlet is obstructed after the air inlet is blocked, which can easily lead to poor air intake and thus affect the cooling efficiency.
[0004] Therefore, it is necessary to redesign and modify the cooling tower to effectively prevent excessive noise and ensure proper airflow. Utility Model Content
[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide an air inlet with a fan-equipped soundproof screen, which has the advantage of reducing noise generated by the cooling tower while not affecting the natural airflow at the air inlet, thus solving the problem of excessive noise from the cooling tower and its impact on air intake quality.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an air inlet with a fan-equipped soundproof screen, comprising a chassis, a ring fixedly connected to the top of the chassis, an air inlet grille fixedly connected to the top of the ring, a cooling tower body fixedly connected to the top of the air inlet grille, columns fixedly connected to all four sides of the top of the chassis, a soundproof screen assembly fixedly connected to the inner side of the columns, and holes provided at the top and bottom of the front of the soundproof screen assembly, with silent fans installed inside the holes.
[0007] As a preferred embodiment of this utility model, the soundproof barrier assembly includes a perforated plate, a steel plate is fixedly connected to the front of the perforated plate, and glass cloth wrapped around glass wool is arranged inside the perforated plate.
[0008] As a preferred embodiment of this invention, a noise-reducing sticker is fixedly connected to the back of the soundproof barrier assembly, and a sound-absorbing cotton layer is fixedly connected inside the noise-reducing sticker.
[0009] As a preferred embodiment of this invention, a sound-absorbing felt layer is fixedly connected to the back of the sound-absorbing cotton layer, and the sound-absorbing felt layer is used in conjunction with the sound-absorbing cotton layer.
[0010] As a preferred embodiment of this invention, a polyurethane board layer is fixedly connected to the back of the sound insulation felt layer, and a straw board layer is fixedly connected to the back of the polyurethane board layer.
[0011] As a preferred embodiment of this invention, a calcium silicate board layer is fixedly connected to the back of the straw board layer, and the calcium silicate board layer is used in conjunction with the straw board layer.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model cooling tower changes the phenomenon that traditional soundproof screens will obstruct air intake. It adopts holes and silent fans for ventilation, which will not obstruct the natural flow of air at the air inlet and will not cause poor air intake of the cooling tower.
[0014] 2. This utility model, through the arrangement of perforated plate, steel plate and glass cloth wrapped around glass wool, can improve the sound insulation effect of the soundproof barrier assembly and avoid excessive noise.
[0015] 3. This utility model, through the setting of noise-reducing stickers and sound-absorbing cotton layers, can work together with soundproofing screen components to perform soundproofing treatment, thereby further improving its soundproofing effect.
[0016] 4. This utility model, through the setting of the sound insulation felt layer, can effectively block sound waves in the air and also effectively reduce the impact of objects.
[0017] 5. This utility model, through the setting of polyurethane board layer and straw board layer, can have a certain sound insulation effect. Its closed-cell structure can block the propagation of some sound waves and disperse and absorb the propagating sound waves. In addition, it has high strength and good compressive strength.
[0018] 6. This utility model, through the setting of calcium silicate board layer, can have a good sound insulation effect, which can significantly reduce the transmission of noise, and its low thermal conductivity at room temperature can effectively prevent heat transfer. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a structural diagram of the soundproof barrier assembly, holes, and silent fan of this utility model;
[0021] Figure 3 This is a cross-sectional view of the noise reduction patch of this utility model;
[0022] Figure 4This is a partial three-dimensional view of the present invention.
[0023] In the diagram: 1. Chassis; 2. Ring; 3. Air inlet grille; 4. Cooling tower body; 5. Column; 6. Sound insulation panel assembly; 7. Hole; 8. Silent fan; 9. Perforated plate; 10. Steel plate; 11. Glass cloth wrapped with glass wool; 12. Noise reduction patch; 13. Sound-absorbing cotton layer; 14. Sound insulation felt layer; 15. Polyurethane board layer; 16. Wheat straw board layer; 17. Calcium silicate board layer. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] like Figures 1 to 4 As shown, the present invention provides an air inlet with fan-equipped soundproof screen, including a chassis 1, a ring 2 fixedly connected to the top of the chassis 1, an air inlet grille 3 fixedly connected to the top of the ring 2, a cooling tower body 4 fixedly connected to the top of the air inlet grille 3, columns 5 fixedly connected to all four sides of the top of the chassis 1, a soundproof screen assembly 6 fixedly connected to the inner side of the columns 5, and holes 7 opened at the top and bottom of the front of the soundproof screen assembly 6, with a silent fan 8 installed inside the holes 7.
[0026] refer to Figure 2 The sound barrier assembly 6 includes a perforated plate 9, with a steel plate 10 fixedly connected to the front of the perforated plate 9, and glass cloth wrapped with glass wool 11 inside the perforated plate 9.
[0027] As a technical optimization of this utility model, the arrangement of perforated plate 9, steel plate 10 and glass cloth wrapped with glass wool 11 can improve the sound insulation effect of soundproof barrier component 6 and avoid excessive noise.
[0028] refer to Figure 1 and Figure 3 The back of the soundproof barrier component 6 is fixedly connected to a noise reduction sticker 12, and the inside of the noise reduction sticker 12 is fixedly connected to a sound-absorbing cotton layer 13.
[0029] As a technical optimization of this utility model, the noise reduction patch 12 and the sound-absorbing cotton layer 13 can work together with the soundproof screen component 6 to perform soundproofing treatment, thereby further improving the soundproofing effect.
[0030] refer to Figure 3 A sound-absorbing cotton layer 13 is fixedly connected to a sound-insulating felt layer 14 on its back side, and the sound-insulating felt layer 14 is used in conjunction with the sound-absorbing cotton layer 13.
[0031] As a technical optimization of this utility model, the sound insulation felt layer 14 can effectively block sound waves in the air and also effectively reduce the impact of objects.
[0032] refer to Figure 3 A polyurethane board layer 15 is fixedly connected to the back of the sound insulation felt layer 14, and a straw board layer 16 is fixedly connected to the back of the polyurethane board layer 15.
[0033] As a technical optimization of this utility model, the polyurethane board layer 15 and the straw board layer 16 can achieve a certain sound insulation effect. Its closed-cell structure can block the propagation of some sound waves and disperse and absorb the propagating sound waves. In addition, it has high strength and good compressive strength.
[0034] refer to Figure 3 A calcium silicate board layer 17 is fixedly connected to the back of the straw board layer 16, and the calcium silicate board layer 17 is used in conjunction with the straw board layer 16.
[0035] As a technical optimization of this utility model, the calcium silicate plate layer 17 can have a good sound insulation effect, significantly reduce the transmission of noise, and has a low thermal conductivity at room temperature, which can effectively prevent the transfer of heat.
[0036] The working principle and usage process of this utility model are as follows: First, a soundproof barrier assembly 6 is installed on the chassis 1 on the outside of the air inlet grille 3 of the cooling tower body 4. Then, a silent fan 8 is installed in the soundproof barrier assembly 6. When the noise from the air inlet grille 3 is transmitted to the outside, most of the noise will be blocked by the soundproof barrier assembly 6, and the noise passing through the silent fan 8 will also be weakened, thereby effectively reducing the sound waves transmitted outward from the air inlet grille 3. At the same time, the operation of the silent fan 8 will allow the air inside and outside the soundproof barrier assembly 6 to flow well, ensuring the air intake of the cooling tower body 4, thereby effectively reducing the adverse effects on the cooling efficiency of the cooling tower body 4, so as to achieve the goal of reducing the noise generated by the cooling tower while not affecting the natural air flow at the air inlet.
[0037] In summary: This air inlet with fan soundproof barrier overcomes the problem of traditional soundproof barriers obstructing airflow by using a cooling tower. It employs holes 7 and a silent fan 8 for ventilation, thus not hindering the natural flow of air at the air inlet and preventing poor airflow into the cooling tower.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A soundproof screen with an air inlet and a fan, comprising a chassis (1), characterized in that: A ring (2) is fixedly connected to the top of the chassis (1), an air inlet grille (3) is fixedly connected to the top of the ring (2), a cooling tower body (4) is fixedly connected to the top of the air inlet grille (3), columns (5) are fixedly connected to the top of the chassis (1), a soundproof screen assembly (6) is fixedly connected to the inner side of the column (5), and holes (7) are opened on the top and bottom of the front of the soundproof screen assembly (6), and a silent fan (8) is installed inside the hole (7).
2. The air inlet fan-equipped soundproof barrier according to claim 1, characterized in that: The soundproof barrier assembly (6) includes a perforated plate (9), a steel plate (10) is fixedly connected to the front of the perforated plate (9), and glass cloth wrapped with glass wool (11) is arranged inside the perforated plate (9).
3. The air inlet fan-equipped soundproof barrier according to claim 1, characterized in that: The back of the soundproof barrier assembly (6) is fixedly connected to a noise reduction patch (12), and a sound-absorbing cotton layer (13) is fixedly connected inside the noise reduction patch (12).
4. The air inlet fan-equipped soundproof barrier according to claim 3, characterized in that: The back of the sound-absorbing cotton layer (13) is fixedly connected to a sound-insulating felt layer (14), which is used in conjunction with the sound-absorbing cotton layer (13).
5. A soundproof barrier with an air inlet and fan according to claim 4, characterized in that: A polyurethane board layer (15) is fixedly connected to the back of the sound insulation felt layer (14), and a straw board layer (16) is fixedly connected to the back of the polyurethane board layer (15).
6. A soundproof barrier with an air inlet and fan according to claim 5, characterized in that: A calcium silicate board layer (17) is fixedly connected to the back of the straw board layer (16), and the calcium silicate board layer (17) is used in conjunction with the straw board layer (16).