Low-noise air-cooled screw water chiller

Abstract

The utility model discloses a low noise air -cooled screw type water chiller, including the water chiller storehouse, the inner wall of water chiller storehouse all is provided with the cavity, still including the noise reduction mechanism and the damping mechanism, the noise reduction mechanism includes the straight board, V type board and through -hole, the straight board evenly fixed connection in the inside of the cavity, and the middle part of straight board all is fixedly connected with the V type board of symmetrical distribution, and the inside of straight board and V type board all is provided with the through -hole of uniform distribution, the damping mechanism sets up in the lower extreme of water chiller storehouse, and the lower extreme of damping mechanism is provided with the damping base, the damping mechanism includes the damping damper, base, connecting rod, fixed column, fixed rod and sliding seat, and the damping damper evenly sets up in the upper end of damping base, the utility model discloses the honeycomb mechanism of noise reduction mechanism composition effective absorption sound wave energy, realizes the damping of water chiller storehouse simultaneously, realizes the noise reduction effect of low noise air -cooled screw type water chiller effectively.

Description

Technical Field

[0001] This utility model relates to the field of chiller technology, specifically a low-noise air-cooled screw chiller unit. Background Technology

[0002] Air-cooled screw chillers are high-efficiency industrial equipment that uses a screw compressor as its core and air as the cooling medium to achieve refrigeration. They are widely used in business hotels, large shopping malls, hospitals, factories and other places.

[0003] In the prior art, patent publication number CN221146849U discloses a low-noise screw chiller unit, including a screw chiller body, a noise reduction component, and an expansion mechanism. The screw chiller body is used for refrigeration. The noise reduction component is located on the outside of the motor and is used to reduce the noise generated by the motor. The expansion mechanism is located on the outside of the noise reduction component. This type of low-noise screw chiller has some problems. It can only reduce the noise generated by the motor, and the noise reduction target is limited. The overall noise reduction effect on the low-noise screw chiller unit is limited. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a low-noise air-cooled screw chiller unit. The honeycomb structure formed by the noise reduction mechanism effectively absorbs sound wave energy and at the same time realizes the vibration reduction of the chiller compartment, thus effectively achieving the noise reduction effect of the low-noise air-cooled screw chiller unit and effectively solving the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-noise air-cooled screw chiller unit, including a chiller compartment and a controller, wherein the inner wall of the chiller compartment is provided with cavities, and also includes a noise reduction mechanism and a vibration damping mechanism; The noise reduction mechanism includes a straight plate, a V-shaped plate, and through holes. The straight plate is uniformly fixedly connected to the inside of the cavity. The middle of the straight plate is fixedly connected to symmetrically distributed V-shaped plates. The inside of the straight plate and the V-shaped plate is provided with uniformly distributed through holes. The shock absorption mechanism is located at the lower end of the chiller compartment, and a shock absorption base is provided at the lower end of the shock absorption mechanism.

[0006] Furthermore, the vibration damping mechanism includes vibration dampers, a base, connecting rods, fixed columns, fixed rods, and sliding seats. The vibration dampers are evenly arranged on the upper end of the vibration damping base, and the upper ends of the vibration dampers are all fixedly connected to the lower end of the chiller compartment. The base is symmetrically fixedly connected to the upper end of the vibration damping base, and the upper end of the base is rotatably connected to evenly distributed connecting rods. The lower surface of the chiller compartment is fixedly connected to symmetrically distributed fixed columns, and the middle part of the outer arc surface of the fixed columns is fixedly connected to evenly distributed fixed rods. The outer surface of the fixed rods is slidably connected to sliding seats, and the lower end of the sliding seats is rotatably connected to the upper end of the radially adjacent connecting rods, thereby achieving stable support and vibration damping of the chiller compartment.

[0007] Furthermore, the shock absorption mechanism also includes springs, which are all disposed between the outer arc surfaces of the sliding seat and the adjacent fixed column, and are all sleeved on the outer surface of the adjacent fixed rod, providing driving force for the reset of the chiller compartment.

[0008] Furthermore, an evaporator is installed on the bottom wall of the chiller compartment. A support frame is fixedly connected to the upper end of the evaporator. An air-cooled condenser is installed at the rear end of the upper surface of the support frame. The liquid inlet of a screw compressor is connected to the liquid outlet of the evaporator via a connecting pipe one at the front end of the upper surface of the support frame. The liquid outlet of the screw compressor is connected to the liquid inlet of the air-cooled condenser via a connecting pipe two. The liquid outlet of the air-cooled condenser is connected to the liquid inlet of the evaporator via a connecting pipe three. The input ends of the axial flow fans of the screw compressor and the air-cooled condenser are electrically connected to the output end of the controller to achieve space cooling.

[0009] Furthermore, the upper end of the chiller compartment is provided with symmetrically distributed fan slots, each of which is equipped with a cooling fan. The input ends of the two cooling fans are electrically connected to the output end of the controller to realize the exchange of air inside and outside the chiller compartment.

[0010] Furthermore, both ends of the chiller compartment are hinged with symmetrically distributed compartment doors to control the opening and closing of the chiller compartment.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. Straight plates and V-shaped plates are stacked together, and round holes are opened inside the straight plates and V-shaped plates to form a honeycomb structure, which increases the number of sound wave reflections, effectively absorbs sound wave energy, and thus effectively reduces the noise generated by the air-cooled screw chiller unit during operation. 2. The truncated pyramid formed by the connecting rod, adjacent fixed column and base provides stable support for the chiller compartment, and the elastic force of the spring can help the chiller compartment to return to its original position. The shock absorber can effectively absorb the vibration energy of the chiller compartment, thereby reducing the vibration of the chiller compartment and further improving the noise reduction effect of the low-noise air-cooled screw chiller unit. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the internal structure of this utility model; Figure 3 This is a schematic diagram of the shock absorption mechanism of this utility model; Figure 4 This is an enlarged structural diagram of point A in this utility model; Figure 5 This is an enlarged structural diagram of section B of the present invention.

[0013] In the diagram: 1. Chiller compartment, 2. Evaporator, 3. Air-cooled condenser, 4. Screw compressor, 5. Noise reduction mechanism, 51. Straight plate, 52. V-shaped plate, 53. Through hole, 6. Vibration damping mechanism, 61. Vibration damper, 62. Base, 63. Connecting rod, 64. Fixed column, 65. Fixed rod, 66. Spring, 67. Sliding seat, 7. Vibration damping base, 8. Cavity, 9. Cooling fan, 10. Compartment door, 11. Controller. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-5 This embodiment provides a technical solution: a low-noise air-cooled screw chiller unit, including a chiller compartment 1 and a controller 11. The inner wall of the chiller compartment 1 is provided with cavities 8. It also includes a noise reduction mechanism 5 and a vibration damping mechanism 6. The vibration damping mechanism 6 is located at the lower end of the chiller compartment 1, and a vibration damping base 7 is provided at the lower end of the vibration damping mechanism 6.

[0016] The noise reduction mechanism 5 includes a straight plate 51, a V-shaped plate 52, and through holes 53. The straight plate 51 is uniformly fixedly connected to the inside of the cavity 8. The middle part of the straight plate 51 is fixedly connected to symmetrically distributed V-shaped plates 52. The inside of the straight plate 51 and the V-shaped plate 52 are uniformly distributed through holes 53.

[0017] The damping mechanism 6 includes dampers 61, a base 62, connecting rods 63, fixed columns 64, fixed rods 65, and sliding seats 67. The dampers 61 are evenly distributed on the upper end of the damping base 7, and the upper ends of the dampers 61 are fixedly connected to the lower end of the chiller compartment 1. The base 62 is symmetrically fixedly connected to the upper end of the damping base 7, and the upper end of the base 62 is rotatably connected to evenly distributed connecting rods 63. The lower surface of the chiller compartment 1 is fixedly connected to symmetrically distributed fixed columns 64, and the middle of the outer arc surface of each fixed column 64 is fixedly connected to evenly distributed fixed rods 65. Sliding seats 67 are slidably connected to the outer surfaces of the fixed rods 65, and the lower ends of the sliding seats 67 are rotatably connected to the upper ends of the radially adjacent connecting rods 63. The damping mechanism 6 also includes springs 66, which are all disposed between the sliding seats 67 and the outer arc surfaces of adjacent fixed columns 64. (The inner and outer sides of the springs 66...) Each side pin can be fixedly connected with a retaining ring. The retaining ring on the side closer to the center of the retaining post 64 can be connected to the outer arc surface of the retaining post 64 by screws. The retaining ring on the side farther from the center of the retaining post 64 can be connected to the end of the corresponding sliding seat 67 close to the center of the adjacent retaining post 64 by screws. The chiller compartment 1 is periodically stabilized by an external jack. The screws are removed to stop the retaining ring. Then the sliding seat 67 is slid out of the corresponding retaining rod 65. The spring 66 is then moved outward and a new spring 66 is fitted onto the outer surface of the corresponding retaining rod 65. The sliding seat 67 is then slid back onto the outer surface of the corresponding retaining rod 65. The retaining ring is then re-limited by screws to install the new spring 66. This prevents the aging of the spring 66 from affecting the reset effect of the chiller compartment 1. The springs 66 are all fitted onto the outer surface of the adjacent retaining rods 65.

[0018] The chiller compartment 1 has an evaporator 2 installed on its bottom wall. A support frame is fixedly connected to the upper end of the evaporator 2. An air-cooled condenser 3 is installed at the rear end of the upper surface of the support frame. The liquid inlet of the screw compressor 4 is connected to the liquid outlet of the evaporator 2 through a connecting pipe 1 at the front end of the upper surface of the support frame. The liquid outlet of the screw compressor 4 is connected to the liquid inlet of the air-cooled condenser 3 through a connecting pipe 2. The liquid outlet of the air-cooled condenser 3 is connected to the liquid inlet of the evaporator 2 through a connecting pipe 3. The input ends of the axial flow fans of the screw compressor 4 and the air-cooled condenser 3 are both electrically connected to the output end of the controller 11.

[0019] Among them: the upper end of the chiller compartment 1 is provided with symmetrically distributed fan slots, and each fan slot is equipped with a cooling fan 9. The input ends of the two cooling fans 9 are electrically connected to the output end of the controller 11.

[0020] The chiller compartment 1 has symmetrically distributed compartment doors 10 at both ends of the left and right sides, which are hinged together. Each longitudinally adjacent compartment door 10 is equipped with a switch lock. The switch lock adopts the rotary lock of the prior art. The opening and closing of the compartment door 10 is completed by the switch lock.

[0021] The working principle of this utility model is as follows: During operation, the shock-absorbing base 7 and the threaded holes in the working area are first stably connected by bolts, thereby achieving stable installation of the chiller compartment 1, evaporator 2 and other mechanisms; After installation and stabilization, the screw compressor 4 is operated via controller 11. The twin-screw rotor of the screw compressor 4 compresses the air, creating a pressure difference. This draws the low-pressure, low-temperature refrigerant gas from the evaporator 2 into the screw compressor 4, where the twin-screw rotor compresses it into a high-temperature, high-pressure gas. This high-temperature, high-pressure refrigerant gas then enters the air-cooled condenser 3, where it exchanges heat with the air through the fins. Simultaneously, controller 11 activates the axial fan inside the air-cooled condenser 3, which forces air to flow through the fins, dissipating heat into the environment. The refrigerant gas condenses into a high-pressure liquid. This high-pressure liquid refrigerant flows through an external thermostatic expansion valve, causing a rapid drop in pressure and temperature, transforming into a low-temperature, low-pressure gas-liquid mixture. This low-temperature, low-pressure refrigerant then enters the evaporator 2, absorbs heat from the chilled water, and evaporates into gas. After the chilled water temperature decreases, it is delivered to terminal equipment (such as fan coil units) for space cooling. Finally, the evaporated low-pressure gas returns to the screw compressor 4, completing the cycle. At the same time, the controller 11 enables the operation of two cooling fans 9. The front cooling fan 9 draws external air into the interior of the chiller compartment 1, and the rear cooling fan 9 draws out the hot air inside the chiller compartment 1, thereby realizing the exchange of air inside and outside the chiller compartment 1. During the operation of the screw chiller unit, the noise generated by the axial flow fan of the screw compressor 4 and the air-cooled condenser 3 is transmitted to the interior of the cavity 8. Both the straight plate 51 and the V-shaped plate 52 can be made of perforated aluminum composite rock wool sound insulation board. The perforated aluminum plate and rock wool are combined and the sound energy is consumed and resonance is avoided through the damping layer. The sound energy is accumulated by the straight plate 51 and the V-shaped plate 52. At the same time, the interior of the straight plate 51 and the V-shaped plate 52 are opened with round holes 53 to form a honeycomb structure, which increases the number of sound wave reflections and the number of sound wave energy losses, effectively absorbing sound wave energy. At the same time, the vibration generated by the axial flow fan of the screw compressor 4 and the air-cooled condenser 3 is transmitted to the chiller compartment 1, causing the chiller compartment 1 to vibrate. The piston rod of the damper 61 moves with the vibration of the chiller compartment 1, thereby squeezing the hydraulic oil inside the damper 61 and converting the mechanical energy of the vibration into heat energy, thus achieving vibration reduction of the chiller compartment 1. Simultaneously, when the chiller compartment 1 moves downward, the downward movement of the chiller compartment 1 causes the four fixed columns 64 to move downward. The downward movement of the fixed columns 64 causes the three adjacent fixed rods 65 to move downward. The downward movement of the fixed rods 65 causes the adjacent sliding seats 67 to move downward. The downward movement of the sliding seats 67 pushes the adjacent connecting rods 63 to rotate away from the center of the adjacent base 62. The outward movement of the sliding seats 67 causes the adjacent springs 66 to stretch elastically. After the shock absorber 61 absorbs the mechanical energy of the vibration, the elastic force of the springs 66 reacts to the corresponding sliding seats 67. The sliding seats 67 move towards the center of the adjacent fixed column 64 on the outer surface of the corresponding fixed rod 65, thereby realizing the reset of the chiller compartment 1.

[0022] It is worth noting that the controller 11 disclosed in the above embodiments controls the operation of the axial flow fan, screw compressor 4 and cooling fan 9 of the air-cooled condenser 3 using methods commonly used in the prior art.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A low-noise air-cooled screw chiller unit, comprising a chiller compartment (1) and a controller (11), wherein the inner wall of the chiller compartment (1) is provided with cavities (8), characterized in that: It also includes a noise reduction mechanism (5) and a shock absorption mechanism (6); The noise reduction mechanism (5) includes a straight plate (51), a V-shaped plate (52) and through holes (53). The straight plate (51) is uniformly fixedly connected to the inside of the cavity (8). The middle part of the straight plate (51) is fixedly connected with symmetrically distributed V-shaped plates (52). The inside of the straight plate (51) and the V-shaped plate (52) is provided with uniformly distributed through holes (53). The shock absorption mechanism (6) is located at the lower end of the chiller compartment (1), and a shock absorption base (7) is provided at the lower end of the shock absorption mechanism (6).

2. The low-noise air-cooled screw chiller unit according to claim 1, characterized in that: The damping mechanism (6) includes a damper (61), a base (62), a connecting rod (63), a fixed column (64), a fixed rod (65), and a sliding seat (67). The damper (61) is evenly arranged on the upper end of the damping base (7). The upper end of the damper (61) is fixedly connected to the lower end of the chiller compartment (1). The base (62) is symmetrically fixedly connected to the upper end of the damping base (7). The upper end of the base (62) is rotatably connected to a connecting rod (63) that is evenly distributed. The lower surface of the chiller compartment (1) is fixedly connected to a fixed column (64) that is symmetrically distributed. The middle part of the outer arc surface of the fixed column (64) is fixedly connected to a fixed rod (65) that is evenly distributed. The outer surface of the fixed rod (65) is slidably connected to a sliding seat (67). The lower end of the sliding seat (67) is rotatably connected to the upper end of the radially adjacent connecting rod (63).

3. A low-noise air-cooled screw chiller unit according to claim 1, characterized in that: The shock absorption mechanism (6) also includes springs (66), which are all disposed between the outer arc surfaces of the sliding seat (67) and the adjacent fixed column (64), and are all sleeved on the outer surface of the adjacent fixed rod (65).

4. A low-noise air-cooled screw chiller unit according to claim 1, characterized in that: The bottom wall of the chiller compartment (1) is provided with an evaporator (2). The upper end of the evaporator (2) is fixedly connected to a support frame. The rear end of the upper surface of the support frame is provided with an air-cooled condenser (3). The front end of the upper surface of the support frame is provided with a screw compressor (4). The liquid inlet of the screw compressor (4) is connected to the liquid outlet of the evaporator (2) through a connecting pipe one. The liquid outlet of the screw compressor (4) is connected to the liquid inlet of the air-cooled condenser (3) through a connecting pipe two. The liquid outlet of the air-cooled condenser (3) is connected to the liquid inlet of the evaporator (2) through a connecting pipe three. The input ends of the axial flow fans of the screw compressor (4) and the air-cooled condenser (3) are electrically connected to the output end of the controller (11).

5. A low-noise air-cooled screw chiller unit according to claim 1, characterized in that: The upper end of the chiller compartment (1) is provided with symmetrically distributed fan slots, and each fan slot is equipped with a heat dissipation fan (9). The input ends of the two heat dissipation fans (9) are electrically connected to the output end of the controller (11).

6. A low-noise air-cooled screw chiller unit according to claim 1, characterized in that: Both ends of the chiller compartment (1) are hinged with symmetrically distributed compartment doors (10).

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