Air return energy storage liquid cooling machine structure with noise reduction panel

Abstract

The utility model provides a kind of return air energy storage liquid cooling machine structure with noise reduction panel, it is related to energy storage equipment field, including shell;The front end of shell is equipped with rectangular air inlet, the rear end of shell is equipped with rectangular air outlet, the air inlet and air outlet of the front and rear ends of shell are symmetrically installed with noise reduction board inside, and the inside rear side of shell is fixedly installed with heat exchange component;The return air energy storage liquid cooling machine structure with noise reduction panel can make airflow consume sound wave energy by multiple reflection through the "V" shape ventilation sound insulation groove of noise reduction board, effectively weaken the middle and high frequency aerodynamic noise, and do not hinder airflow circulation, avoid the problem that traditional plane sound insulation structure increases airflow resistance, the perforated metal sheet of flow guide layer can guide airflow to enter sound absorption layer uniformly, prevent local airflow velocity too fast to produce noise, and at the same time, rely on high-strength metal material to protect internal sound absorption layer from airflow impact damage, to solve the problem of sticking sound insulation cotton noise reduction, easy to block passage to reduce heat dissipation and aging influence reliability.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to a return air energy storage liquid cooler structure with a noise reduction panel. Background Technology

[0002] As the energy storage industry develops towards large-scale and integrated operations, the mechanical and fluid noise generated by medium and large-scale energy storage system equipment during operation is becoming increasingly prominent. The noise generated by high-frequency operating liquid-cooled circulating pumps, fans, and fluid flow in pipelines is a common source of noise. Existing noise reduction methods for return air energy storage liquid cooler structures mainly involve pasting sound insulation cotton on the inner wall of the return air channel. Although this can reduce noise to a certain extent, the sound insulation cotton is prone to clogging the airflow channel, increasing airflow resistance, and leading to a decrease in heat dissipation efficiency. Furthermore, the sound insulation cotton is prone to aging and falling off in a humid and hot environment, affecting the long-term reliability of the liquid cooler. Utility Model Content

[0003] This utility model relates to a return air energy storage liquid cooler structure with a noise reduction panel, in order to solve the problem mentioned in the background art that the existing return air energy storage liquid coolers mostly use the method of pasting sound insulation cotton on the inner wall of the return air channel to reduce noise. Although it can reduce noise to a certain extent, the sound insulation cotton is easy to block the airflow channel, increase resistance, and reduce heat dissipation efficiency. Moreover, it is easy to age and fall off when it is in a humid and hot environment for a long time, which affects the long-term reliability of the liquid cooler.

[0004] This utility model provides a return air energy storage liquid cooler structure with noise reduction panel, specifically including: a shell; a rectangular air inlet is opened at the front end of the shell, a rectangular air outlet is opened at the rear end of the shell, noise reduction plates are symmetrically installed inside the air inlet and air outlet at both ends of the shell, and a heat exchange component is fixedly installed on the rear side inside the shell.

[0005] Furthermore, return air channels are symmetrically installed in the middle of the left and right side walls of the housing. Four circulating fans are installed in a rectangular array on the inner walls of the air inlet and air outlet at both ends of the housing. Guide sliders are provided in the middle of the upper and lower side walls of the air inlet and air outlet. Fixed insertion holes are symmetrically opened at the ends of the left and right side walls of the air inlet and air outlet, and fixed insertion rods are inserted into the fixed insertion holes.

[0006] Furthermore, the left and right sidewalls of the air inlet and air outlet are connected by a return air channel. A circulating fan is fixedly installed in the middle of the return air channel, and sound-absorbing protrusions are installed at equal intervals on the inner wall of the return air channel. The sound-absorbing protrusions are semi-circular rubber strips.

[0007] Furthermore, the noise reduction plates, air inlets, and air outlets have opposite sidewalls made of elastic rubber and configured as a filter mesh. A guide groove is provided in the middle of the upper and lower sidewalls at one end of the two noise reduction plates. The guide groove is inserted into the guide sliders on the upper and lower sidewalls of the air inlet and air outlet. Filter meshes are provided on the opposite side and the left and right sidewalls of the two noise reduction plates. Through-hole fixing holes are provided in the left and right sidewalls of the opposite side of the two noise reduction plates, and fixing rods are inserted into the fixing holes.

[0008] Furthermore, the noise reduction plate has a noise reduction layer on the inner side of its outermost end, and a "V"-shaped ventilation and sound insulation groove is formed in the noise reduction layer. The noise reduction plate has a flow guide layer on the innermost end, which is a perforated metal plate. A sound absorption layer is attached to one side of the flow guide layer. The sound absorption layer is an open-cell foam aluminum plate, and a through airflow channel is formed inside the sound absorption layer.

[0009] Furthermore, the bottom right side of the front sidewall of the heat exchange assembly is connected to the heat exchanger input end, which is connected to the circulating liquid pump, and the bottom left side of the front sidewall of the heat exchange assembly is connected to the heat exchanger output end.

[0010] This utility model provides a return air energy storage liquid cooler structure with a noise reduction panel, which has the following beneficial effects: 1. The "V"-shaped ventilation and sound insulation groove of the noise reduction panel allows the airflow to be reflected multiple times to consume sound wave energy, effectively weakening mid-to-high frequency aerodynamic noise without obstructing airflow. This avoids the problem of increased airflow resistance in traditional planar sound insulation structures. The perforated metal plate of the airflow guide layer can guide the airflow evenly into the sound absorption layer, preventing excessively fast local airflow from generating noise. At the same time, the high-strength metal material protects the internal sound absorption layer from damage caused by airflow impact. The open-cell foam aluminum plate of the sound absorption layer absorbs noise energy through its porous structure. The internal airflow channel is aligned with the airflow guide layer, further reducing airflow resistance and ensuring smooth airflow to the heat exchange components, thus resolving the contradiction between noise reduction and heat dissipation.

[0011] 2. The elastic rubber layer can fill the gap between the noise reduction plate and the air inlet and outlet, preventing airflow leakage from reducing heat dissipation efficiency. It can also buffer vibration transmission. The multi-faceted filter can intercept dust and impurities in the air, preventing them from entering the housing and clogging the heat exchange components or return air channel, effectively extending the service life of the equipment, and without affecting the airflow area to ensure heat dissipation air volume. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0013] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the right front side axial view structure of this utility model; Figure 2 This is a schematic diagram of the upper cross-sectional structure of the shell of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the top of the shell of this utility model; Figure 4 This is a schematic diagram of the right-side cross-sectional structure of the casing of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the noise reduction board of this utility model; Figure 6 This is a cross-sectional view of the noise reduction plate of this utility model.

[0015] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Housing; 101. Air inlet; 102. Air outlet; 103. Return air duct; 104. Guide slider; 105. Fixing hole; 2. Circulating fan; 3. Noise reduction plate; 301. Guide groove; 302. Filter screen; 303. Fixing perforation; 304. Noise reduction layer; 305. Airflow guiding layer; 306. Sound absorption layer; 4. Fixing rod; 5. Heat exchanger assembly; 501. Heat exchanger input end; 502. Heat exchanger output end; 6. Circulating liquid pump. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown: This utility model provides a return air energy storage liquid cooler structure with noise reduction panels, including: a shell 1, a rectangular air inlet 101 at the front end of the shell 1, a rectangular air outlet 102 at the rear end of the shell 1, noise reduction panels 3 symmetrically installed inside the air inlet 101 and air outlet 102 at both ends of the shell 1, a heat exchange assembly 5 fixedly installed on the rear side inside the shell 1, and return air channels 103 symmetrically installed in the middle of the left and right side walls of the shell 1, and the inner walls of the air inlet 101 and air outlet 102 at both ends of the shell 1. Four circulating fans 2 are installed in a rectangular array on each side. Guide sliders 104 are provided in the middle of the upper and lower side walls of the air inlet 101 and air outlet 102. Fixing holes 105 are symmetrically opened at the ends of the left and right side walls of the air inlet 101 and air outlet 102, and fixing rods 4 are inserted into the fixing holes 105. The side walls opposite to the noise reduction plate 3, the air inlet 101, and the air outlet 102 are made of elastic rubber and are configured as filters 302. Guide grooves 301 are opened in the middle of the upper and lower side walls at opposite ends of the two noise reduction plates 3. The slide groove 301 is inserted into the guide slider 104 on the upper and lower side walls of the air inlet 101 and the air outlet 102. Filters 302 are provided on the opposite side and left and right side walls of the two noise reduction plates 3. Through-hole fixing holes 303 are opened in the left and right side walls of the opposite side of the two noise reduction plates 3, and fixing rods 4 are inserted into the fixing holes 303. Specifically, through the insertion and cooperation of the guide slide groove 301 and the guide slider 104, the noise reduction plates 3 can be quickly disassembled and assembled, solving the problem of inconvenient maintenance of traditional integrated structures. The fixing rods 4 penetrate the fixing... The fixed insertion hole 105 and the fixed through hole 303 ensure that the noise reduction plate 3 is stably installed under the impact of airflow, avoiding vibration and generating additional noise. The elastic rubber layer can fill the gap between the noise reduction plate 3 and the air inlet 101 and air outlet 102 to prevent airflow leakage from reducing heat dissipation efficiency, while buffering vibration transmission. The multi-faceted filter 302 can intercept dust and impurities in the air, preventing them from entering the housing 1 and clogging the heat exchange component 5 or the return air channel 103, extending the service life of the equipment, and without affecting the airflow area, ensuring the air volume required for heat dissipation.

[0018] The left and right side walls of the air inlet 101 and the air outlet 102 are connected by a return air channel 103. A circulating fan 2 is fixedly installed in the middle of the return air channel 103. Silencing protrusions, which are semi-circular rubber strips, are installed at equal intervals on the inner wall of the return air channel 103. Specifically, the return air channel 103 connects the air inlet 101 and the air outlet 102, forming an airflow circulation loop. Together with the circulating fan 2, it can re-transport the low-temperature airflow that has not been fully heat-exchanged at the air outlet 102 to the... The air inlet 101 reduces airflow waste and improves overall heat exchange efficiency. Compared with a structure without return air, the temperature uniformity around the energy storage device is improved. The semi-circular rubber sound-absorbing protrusions on the inner wall can change the flow trajectory of the airflow in the return air channel 103, break the turbulent airflow eddies, and weaken the aerodynamic noise generated by the friction between the airflow and the channel wall. At the same time, the rubber material can absorb some vibration energy, further reducing the propagation of mechanical noise from the circulating fan 2, thus reducing the noise level in the return air channel 103. Together with the noise reduction plate 3, it achieves dual noise reduction.

[0019] The noise reduction plate 3 has a noise reduction layer 304 on its outermost inner side, with a "V"-shaped ventilation and sound insulation groove. The noise reduction plate 3 has a guide layer 305 on its innermost inner side, which is a perforated metal plate. A sound-absorbing layer 306, made of perforated aluminum foam, is attached to one side of the guide layer 305. The sound-absorbing layer 306 has a through-flow channel inside. Specifically, the "V"-shaped ventilation and sound insulation groove of the noise reduction layer 304 allows the incoming airflow to undergo multiple reflections within the groove. During the reflection process, the sound waves gradually lose energy, effectively reducing mid-to-high frequency aerodynamic noise. Simultaneously, the "V"-shaped structure... Without obstructing airflow and avoiding the problem of increased airflow resistance in traditional planar sound insulation structures, the perforated metal plate of the airflow guiding layer 305 can guide airflow evenly into the sound-absorbing layer 306, preventing excessively fast local airflow velocity from generating noise. Moreover, the high strength of the metal material can protect the internal sound-absorbing layer 306 from damage caused by airflow impact. The open-cell foam aluminum plate of the sound-absorbing layer 306 absorbs noise energy in the airflow through its porous structure. The airflow channel that runs through it is consistent with the guiding direction of the airflow guiding layer 305, further reducing airflow resistance and allowing the airflow to flow smoothly to the heat exchange component 5, thus resolving the contradiction between noise reduction and heat dissipation. Compared with sound-absorbing structures without airflow channels, this design offers superior performance.

[0020] The heat exchanger assembly 5 has a heat exchanger input end 501 connected to the bottom right side of the front wall, which is connected to the circulating liquid pump 6. The heat exchanger output end 502 is connected to the bottom left side of the front wall of the heat exchanger assembly 5. Specifically, the circulating liquid pump 6 delivers the high-temperature coolant generated by the energy storage device to the heat exchanger assembly 5 through the heat exchanger input end 501, so that the high-temperature coolant can fully exchange heat with the low-temperature airflow in the shell 1 within the heat exchanger assembly 5, thereby cooling the coolant. The cooled coolant then flows back to the energy storage device through the heat exchanger output end 502, forming a coolant circulation loop, continuously removing heat from the energy storage device, and ensuring that the temperature of core components such as the energy storage battery and converter is controlled within the optimal operating range.

[0021] The specific usage and function of this embodiment are as follows: When using the return air energy storage liquid cooler structure with noise reduction panel, first start the circulating fans 2 in the rectangular array on the inner wall of the air inlet 101 and air outlet 102 of the housing 1, as well as the circulating fan 2 in the middle of the return air channel 103. At the same time, turn on the circulating liquid pump 6 connected to the heat exchanger input end 501 of the heat exchange component 5. The external airflow enters under the driving force of the circulating fans 2 in the air inlet 101. It first passes through the multi-faceted filter 302 of the noise reduction plate 3 to intercept dust and impurities in the air, preventing them from entering the housing 1 and clogging the heat exchange component 5 or the return air channel 103. Then the airflow passes through the inner side of the outermost end of the noise reduction plate 3 for noise reduction. The "V"-shaped ventilation and sound insulation groove of layer 304 and the innermost guide layer 305 further absorb noise through the porous structure of the sound-absorbing layer 306. The airflow channel inside the sound-absorbing layer 306 is aligned with the guiding direction of the guide layer 305, ensuring smooth airflow to the heat exchange component 5 at the rear of the shell 1. At the same time, the circulating liquid pump 6 delivers the high-temperature coolant generated by the energy storage device to the heat exchange component 5 through the heat exchanger inlet 501. After the high-temperature coolant exchanges heat fully with the low-temperature airflow inside the shell 1, its temperature decreases, and it then flows back to the energy storage device through the heat exchanger outlet 502, forming a coolant circulation. The circuit continuously removes heat from the energy storage device, ensuring that core components such as the energy storage battery and inverter are within their optimal operating temperature range. Of the airflow that completes the heat exchange, part is discharged through the outlet 102 by the circulating fan 2, while the other part enters the return air duct 103 by the circulating fan 2. The semi-circular rubber noise-absorbing protrusions evenly spaced on the inner wall of the duct alter the airflow trajectory, break up turbulent eddies to reduce aerodynamic noise, and absorb some vibration energy through the rubber material, further reducing the propagation of mechanical noise from the circulating fan 2. When maintenance or cleaning of the noise reduction plate 3 is required... When using filter 302, simply pull out the fixing rod 4 inside the fixing holes 105 on the left and right side walls of air inlet 101 and air outlet 102 and the fixing through holes 303 of noise reduction plate 3, and slide the guide groove 301 of noise reduction plate 3 along the guide slider 104 on the upper and lower side walls of air inlet 101 and air outlet 102 to quickly disassemble noise reduction plate 3. After maintenance or cleaning, reset noise reduction plate 3 and insert fixing rod 4 in the reverse order. At the same time, the elastic rubber layer on the opposite side walls of noise reduction plate 3 and air inlet 101 and air outlet 102 can fill the gap to prevent airflow leakage from affecting heat dissipation efficiency and buffer vibration transmission. Example 2:

[0022] The original single open-cell aluminum foam sound-absorbing layer 306 is replaced with a three-layer composite structure of "porous ceramic layer + glass fiber cotton layer + open-cell aluminum foam". At the same time, a detachable high-efficiency dustproof net with Velcro connection is added to the inside of the filter 302, and the guide groove 301 and the fixing perforation 303 are kept compatible with the original structure to achieve low-frequency noise absorption.

Claims

1. A return air energy storage liquid cooler structure with a noise reduction panel, characterized in that, Includes a housing (1); the front end of the housing (1) is provided with a rectangular air inlet (101), the rear end of the housing (1) is provided with a rectangular air outlet (102), noise reduction plates (3) are symmetrically installed inside the air inlet (101) and air outlet (102) at both ends of the housing (1), and a heat exchange assembly (5) is fixedly installed inside the rear side of the housing (1).

2. The structure of a return air energy storage liquid cooler with a noise reduction panel according to claim 1, characterized in that, The return air channel (103) is symmetrically installed in the middle of the left and right side walls of the housing (1). Four circulating fans (2) are installed in a rectangular array on the inner walls of the air inlet (101) and air outlet (102) at the front and rear ends of the housing (1). Guide sliders (104) are provided in the middle of the inner walls of the upper and lower side walls of the air inlet (101) and air outlet (102). Fixed insertion holes (105) are symmetrically opened at the ends of the left and right side walls of the air inlet (101) and air outlet (102). Fixed insertion rods (4) are inserted into the fixed insertion holes (105).

3. The structure of a return air energy storage liquid cooler with a noise reduction panel according to claim 1, characterized in that, The left and right side walls of the air inlet (101) and the air outlet (102) are connected by a return air channel (103). A circulating fan (2) is fixedly installed in the middle of the return air channel (103). Silencing protrusions are installed at equal intervals on the inner wall of the return air channel (103). The silencing protrusions are semi-circular rubber strips.

4. The structure of a return air energy storage liquid cooler with a noise reduction panel according to claim 1, characterized in that, The sidewalls of the noise reduction plate (3), the air inlet (101) and the air outlet (102) are made of elastic rubber and are configured as a filter (302). A guide groove (301) is provided in the middle of the upper and lower sidewalls of the two noise reduction plates (3) facing each other. The guide groove (301) is inserted into the guide slider (104) on the upper and lower sidewalls of the air inlet (101) and the air outlet (102). A filter (302) is provided on the opposite side and the left and right sidewalls of the two noise reduction plates (3). A through fixing hole (303) is provided in the left and right sidewalls of the opposite side of the two noise reduction plates (3). A fixing rod (4) is inserted into the fixing hole (303).

5. The structure of a return air energy storage liquid cooler with a noise reduction panel according to claim 1, characterized in that, The noise reduction plate (3) has a noise reduction layer (304) on the inner side of its outermost end. A "V"-shaped ventilation and sound insulation groove is provided in the noise reduction layer (304). A flow guide layer (305) is provided on the inner side of the innermost end of the noise reduction plate (3). The flow guide layer (305) is a perforated metal plate. A sound absorption layer (306) is attached to one side of the flow guide layer (305). The sound absorption layer (306) is an open-cell foam aluminum plate. A through airflow channel is provided inside the sound absorption layer (306).

6. The structure of a return air energy storage liquid cooler with a noise reduction panel according to claim 1, characterized in that, The heat exchanger input terminal (501) is connected to the bottom right side of the front side wall of the heat exchanger assembly (5), and the heat exchanger input terminal (501) is connected to the circulating liquid pump (6). The heat exchanger output terminal (502) is connected to the bottom left side of the front side wall of the heat exchanger assembly (5).

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