Precise environment control laboratory

Abstract

The invention relates to a precise environment control laboratory, and belongs to the technical field of laboratory environment control, the precise environment control laboratory comprises a laboratory box body, the laboratory box body is connected with an air outlet pipeline and an air return pipeline, the air outlet pipeline and the air return pipeline are jointly connected with an air supply box body, and a cooling assembly and a primary heating assembly are arranged in the air supply box body; a sound absorption shell is installed in the air supply box body, a motor and a sound absorption plate are arranged in the sound absorption shell, the sound absorption plate wraps the motor in the circumferential direction of the motor, a plurality of heat dissipation air channels are formed in the sound absorption plate in the length direction of the outer wall of the fan and penetrate to the circumferential face of the motor, and the motor is connected with a centrifugal fan. After air in the laboratory box body passes through the air outlet pipeline and enters the air supply box body, the air sequentially passes through the cooling assembly, the centrifugal fan, the heat dissipation air channel, the first-stage heating assembly and the air return pipeline, and finally the air flows into the laboratory box body again. The motor provided by the invention has the effect of improving the heat dissipation performance of the motor while reducing the noise.

Description

Technical Field

[0001] The present application relates to the technical field of laboratory environment control, and in particular to a precision environment control laboratory. Background Art

[0002] With the development of science and technology, many high-precision laboratories have put forward higher and higher requirements on environmental factors such as temperature and humidity, cleanliness, and noise. Especially in laboratories where some experimental equipment is particularly sensitive to environmental noise, how to effectively reduce noise and ensure the accuracy of experimental results has become a key issue. Usually, fans are installed in the air supply system of the laboratory for air circulation and temperature control, but the fans will generate a lot of noise during operation, which will interfere with the normal operation of precision instruments and thus affect the accuracy of the experiment.

[0003] The existing noise control method generally installs sound-absorbing materials, such as sound-absorbing cotton, in the laboratory to reduce noise. Although sound-absorbing cotton can effectively reduce the noise generated when the fan is running, it also has a strong thermal insulation effect. This feature causes problems in specific application scenarios: when sound-absorbing cotton is used in large quantities, the heat dissipation performance of the motor in the enclosed space is greatly reduced, causing the motor to be damaged due to overheating. This problem is particularly prominent in large laboratories. The larger the laboratory area, the higher the requirements for air circulation, the greater the required motor power, and the correspondingly stronger noise, which requires more sound-absorbing cotton for sound insulation. However, too much sound-absorbing material will further weaken the heat dissipation performance of the motor, forming a vicious circle and affecting the long-term stable operation of the equipment. Summary of the invention

[0004] In order to achieve the goal of improving the heat dissipation performance of the motor while reducing noise, the present application provides a precision environmental control laboratory.

[0005] The application provides a precision environment control laboratory adopting the following technical solutions: A precision environment control laboratory, comprising a laboratory box, the laboratory box is connected with an air outlet duct and a return air duct, the air outlet duct and the return air duct are commonly connected with an air supply box, a cooling component and a primary heating component are arranged in the air supply box, a sound absorbing shell is installed in the air supply box, a motor and a sound absorbing board are arranged in the sound absorbing shell, the sound absorbing board is wrapped around the circumference of the motor, the sound absorbing board is provided with a plurality of heat dissipation ducts along the length direction of the outer wall of the fan, the heat dissipation ducts penetrate to the circumference of the motor, and the motor is connected with a centrifugal fan; After the air in the laboratory box passes through the air outlet duct and enters the air supply box, the air passes through the cooling component, the centrifugal fan, the heat dissipation duct, the primary heating component and the return air duct in sequence, and finally the air flows back into the laboratory box.

[0006] By adopting the above technical solution, the motor drives the centrifugal fan to start, and the air can circulate in the laboratory box and the air supply box. The wind returning from the laboratory is first cooled by the cooling component, and then the motor is cooled by the heat dissipation channel. In general high-precision laboratories, the wind needs to be cooled first, and then heated in multiple passes to accurately meet the temperature requirements of the laboratory. Therefore, the heat source of the motor is used to heat the air for the first time, and then the temperature is adjusted again through the first-level heating component. It not only solves the problem of motor heat dissipation, but also reasonably utilizes the heat generated during the operation of the motor to preheat the air, thereby improving the overall energy efficiency of the system. The sound-absorbing panels are directly set around the motor, which can also have a good sound insulation effect.

[0007] Optionally, an air outlet is provided on the top of the laboratory box, return air outlets are provided on the bottoms of both sides of the laboratory box, a first air duct and a second air duct are provided on both sides of the laboratory box, and the first air duct is located above the second air duct; The air outlet duct, the air return duct and the air supply box are all provided with two, the first air duct is communicated with the air outlet and the air outlet duct, and the second air duct is communicated with the return air outlet and the return air duct.

[0008] By adopting the above technical solutions, this design optimizes the air flow path, forming a reasonable cycle of air supply from the top and air return from the bottom, making the air distribution in the laboratory more uniform. The design of double air supply boxes, double air outlet ducts and double return air ducts greatly enhances the redundancy and stability of the system. When a certain air duct or air supply box fails, the other system can continue to maintain the air circulation and processing functions without causing significant impact on the experimental environment. In addition, in large laboratory boxes, the design of double air supply boxes can ensure stable air circulation, and two smaller power motors can be used to replace a single high-power motor, which is conducive to reducing noise.

[0009] Optionally, sound absorbing blocks are provided at both the air outlet and the air return of the air supply box, and the sound absorbing blocks are provided with air guiding channels, which are multi-bend channels, and air is discharged from the sound absorbing blocks through the air guiding channels.

[0010] By adopting the above technical solution, the multiple curved air guide channels set in the sound-absorbing block increase the length of the air flow path and guide the airflow to repeatedly turn back in complex bends. This design forces the air to change direction multiple times when it flows through, consumes some kinetic energy, weakens the high-frequency vibration in the airflow, and thus reduces the generation of noise. This can significantly reduce the wind noise interference in the laboratory.

[0011] Optionally, the cooling component includes a spiral water pipe, a plurality of support frames are installed in the air supply box, the plurality of support frames are commonly connected to the spiral water pipe, the spiral water pipe is connected to a water inlet pipe and a drain pipe, the water inlet pipe is arranged adjacent to the return air duct, the drain pipe is arranged away from the return air duct, and the water inlet pipe and the drain pipe both extend out of the air supply box.

[0012] By adopting the above technical solution, the design of the water inlet pipe and the drain pipe extending out of the air supply box is convenient for connection with the external water circulation system. The spiral water pipe effectively improves the heat exchange efficiency between the spiral water pipe and the airflow by increasing the surface area of ​​the cooling water pipe. When the wind flows through the spiral water pipe, more air can contact the cooling water pipe, take away the heat, and cool down quickly. A large area of ​​cooling effect can be achieved in a limited space. The setting of the support frame ensures the stability of the cooling component, and at the same time, the airflow can be cooled from the outer peripheral surface of the spiral water pipe, further improving the cooling effect of the airflow.

[0013] Optionally, the centrifugal fan is coaxially connected to a centrifugal pump, the drainage end of the spiral water pipe is connected to the water inlet end of the centrifugal pump, and the drainage pipe is connected to the water outlet end of the centrifugal pump.

[0014] By adopting the above technical solution, the motor drives the centrifugal fan and centrifugal pump at the same time through a coaxial structure, reducing the complexity of the mechanical structure and eliminating the need for an additional drive system. The synchronous flow of wind and water ensures the coordination of air cooling and water circulation. When the centrifugal fan is started, the water starts to circulate while the air flows, ensuring that the cooling water always matches the flow rate of the air, providing a more balanced heat exchange effect.

[0015] And because in large laboratory cabinets, due to the increase in volume and internal air circulation path, the water circulation system needs to handle a larger water flow and higher water pressure. At this time, it may be difficult to maintain a stable water circulation by relying solely on an external water pump, especially when the air temperature in the air supply cabinet is high, the efficiency of water cooling will be reduced. Therefore, the introduction of a centrifugal pump in the air supply cabinet can enhance the local water flow power, and work in conjunction with the external water pump to provide stronger power for water circulation in large systems, ensuring that the flow rate of water in the spiral water pipe is stable and efficient. In this way, even if the laboratory cabinet is large and the internal air temperature is high, sufficient cooling water circulation can be ensured to maintain the thermal balance of the system.

[0016] At the same time, large laboratories have high requirements for the response time to changes in ambient temperature. With the assistance of centrifugal pumps, the water circulation speed can be accelerated, the cooling response speed of the system can be improved, and the local temperature rise problem caused by slow water flow can be avoided. In this way, the temperature in the laboratory can be controlled more accurately.

[0017] Optionally, the centrifugal pump includes a water guide seat, the water guide seat is provided with an annular water channel, an inlet channel and a drain channel, the inlet channel and the drain channel are both connected to the annular water channel, and a partition is provided in the water guide seat, the partition is arranged in the annular water channel, so that the inlet channel and the drain channel are separated; The water guide seat is rotatably connected to a rotating disk, the rotating disk is provided with an eccentric protrusion disk, the eccentric protrusion disk is installed with an eccentric ring buckle, both ends of the eccentric ring buckle are provided with cushions, the cushions abut against the partition, and the eccentric ring buckle cooperates with the inner wall of the annular water channel during movement, so that the fluid in the annular water channel is squeezed and discharged from the drain channel.

[0018] Optionally, the first-stage heating component includes a honeycomb carrier and a first temperature sensor, the air inlet end of the honeycomb carrier is arranged adjacent to the air exhaust end of the sound-absorbing shell, the first temperature sensor is fixed in the air supply box, and the first temperature sensor is located between the honeycomb carrier and the sound-absorbing shell, and a first electric heating wire is arranged on the honeycomb carrier.

[0019] By adopting the above technical solution, the first temperature sensor is fixed between the honeycomb carrier and the sound-absorbing shell, and can monitor the temperature change of the air in real time. Therefore, it can be used to determine how much the temperature of the first electric heating wire should be controlled. The first electric heating wire is used to heat the honeycomb carrier, and heat exchange is performed when the air passes through the honeycomb carrier, thereby adjusting the temperature of the air in turn.

[0020] The honeycomb carrier not only achieves uniform air flow, but also improves heating efficiency. Due to its large surface area, the air can quickly absorb heat, thereby achieving a faster temperature rise. The honeycomb structure enables the air to be evenly distributed in each channel when passing through, avoiding local air flow turbulence caused by uneven flow rate in the air duct. This helps to maintain the stability of the air flow, thereby effectively reducing wind noise.

[0021] Optionally, the sound absorbing block at the air outlet of the air supply box is equipped with a second electric heating wire, a second temperature sensor is arranged between the sound absorbing block and the primary heating component, and the second temperature sensor is fixed in the air supply box.

[0022] By adopting the above technical solution, if after the first stage of heating, the second temperature sensor detects that the temperature is still too low, the second electric heating wire can be started to adjust the temperature of the air again, and precise temperature control can be achieved through multi-stage temperature control.

[0023] Optionally, the air outlet of the laboratory box is installed with a filter, and the air supply box is installed with a control cabinet.

[0024] By adopting the above technical solution, the filter is installed at the air outlet, which can effectively filter out dust, particles, impurities, etc. in the air. By pre-filtering the air, it can ensure that the air entering the laboratory box is cleaner. The control cabinet can centrally control various components in the entire air circulation system, such as centrifugal fans, motors, primary heating components, cooling components, etc. Through the control cabinet, users can accurately adjust parameters such as air supply volume, heating temperature, cooling speed, etc. to ensure that the temperature and airflow in the laboratory remain within the preset range.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The motor drives the centrifugal fan to start, so that the air can circulate in the laboratory box and the air supply box. The air returning from the laboratory is first cooled by the cooling component, and then passes through the heat dissipation channel to dissipate heat and cool the motor. In general high-precision laboratories, the air needs to be cooled first, and then undergo multiple heating processes to accurately meet the temperature requirements of the laboratory. Therefore, the heat source of the motor is used to heat the air for the first time, and then the temperature is adjusted again through the first-level heating component. It not only solves the problem of motor heat dissipation, but also reasonably utilizes the heat generated during the operation of the motor to preheat the air, thereby improving the overall energy efficiency of the system. The sound-absorbing panels are set directly around the motor, which can also achieve a good sound insulation effect; 2. The design of double air supply boxes, double air outlet ducts and double air return ducts greatly enhances the redundancy and stability of the system. When a certain air duct or air supply box fails, the other system can continue to maintain the air circulation and processing functions without causing significant impact on the experimental environment; 3. The multiple curved air guide channels set in the sound-absorbing block increase the length of the air flow path and guide the airflow to repeatedly turn back in complex bends. This design forces the air to change direction multiple times when it flows through, consumes part of the kinetic energy, weakens the high-frequency vibration in the airflow, thereby reducing the generation of noise, and can significantly reduce the wind noise interference in the laboratory; 4. The motor drives the centrifugal fan and centrifugal pump at the same time through a coaxial structure, which reduces the complexity of the mechanical structure and does not require an additional drive system. The synchronous flow of wind and water ensures the coordination of air cooling and water circulation. When the centrifugal fan is started, the water starts to circulate while the air flows, ensuring that the cooling water always matches the flow rate of the air, providing a more balanced heat exchange effect; 5. Introducing a centrifugal pump into the air supply box can enhance the local water flow power. Working in conjunction with the external water pump, it can provide stronger power for water circulation in large systems and ensure that the flow rate of water in the spiral water pipe is stable and efficient. In this way, even if the laboratory box is large and the internal air temperature is high, sufficient cooling water circulation can be ensured to maintain the thermal balance of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 It is a structural schematic diagram used to reflect the air outlet and return air outlet of the embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the structure of the first air duct and the second air duct used in an embodiment of the present application.

[0029] Figure 4 It is a schematic diagram of the internal structure of the air supply box body used to reflect the embodiment of the present application.

[0030] Figure 5 It is a schematic diagram of the structure of the sound-absorbing block used in the embodiment of the present application.

[0031] Figure 6 It is a schematic diagram of the structure of the sound absorbing shell, the motor and the heat dissipation duct according to the embodiment of the present application.

[0032] Figure 7 It is a structural schematic diagram of a centrifugal pump used in an embodiment of the present application.

[0033] Figure 8 It is a schematic diagram of the structure of the primary heating component used to reflect the embodiment of the present application.

[0034] Description of reference numerals: 1. laboratory box; 11. air outlet; 12. filter; 13. return air outlet; 14. first air duct; 15. second air duct; 16. air outlet duct; 17. return air duct; 2. air supply box; 3. cooling assembly; 31. spiral water pipe; 32. support frame; 33. water inlet pipe; 34. drain pipe; 41. sound absorbing shell; 42. motor; 43. sound absorbing board; 431. heat dissipation duct; 44. centrifugal fan; 5. Primary heating component; 51. honeycomb carrier; 52. first temperature sensor; 53. first electric heating wire; 6. sound absorbing block; 61. air guide channel; 62. second electric heating wire; 63. second temperature sensor; 7. control cabinet; 8. centrifugal pump; 81. water guide seat; 811. annular water channel; 812. water inlet; 813. drainage channel; 82. partition; 85. turntable; 86. eccentric raised disk; 87. eccentric buckle; 88. cushion. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-8 This application is described in further detail.

[0036] The embodiment of the present application discloses a precision environment control laboratory.

[0037] like Figure 1 , Figure 2 and Figure 3The precision environment control laboratory includes a laboratory box 1, and an air outlet 11 is provided on the top of the laboratory box 1, and a filter 12 is installed on the air outlet 11. Return air outlets 13 are provided at the bottom of both sides of the laboratory box 1, and a first air duct 14 and a second air duct 15 are provided on both sides of the laboratory box 1. The first air duct 14 and the second air duct 15 are both connected to the end of the laboratory box 1 away from the entrance door, and the first air duct 14 is located above the second air duct 15; the two first air ducts 14 are connected to the air outlet duct 16, and the two second air ducts 15 are connected to the return air duct 17.

[0038] like Figure 4 The air outlet duct 16 and the air return duct 17 on the same side are connected to the air supply box 2, and the air supply box 2 is provided with a cooling component 3, a sound absorbing shell 41, a primary heating component 5 and a sound absorbing block 6. The air supply box 2 is installed with a control cabinet 7. The control cabinet 7 is located on one side of the sound absorbing shell 41.

[0039] like Figure 4 and Figure 5 There are two sound absorbing blocks 6, which are respectively located at the air outlet and the air return of the air supply box 2. The sound absorbing block 6 is provided with an air guide channel 61, which is a multi-bend channel, i.e., a labyrinth channel. The air is discharged from the sound absorbing block 6 through the air guide channel 61, and the two sound absorbing blocks 6 are respectively adapted to the air outlet duct 16 and the air return duct 17. The air guide channel 61 of the sound absorbing block 6 located at the air outlet of the air supply box 2 is provided with a second electric heating wire 62 along its extension direction, and a second temperature sensor 63 is installed in the air supply box 2. The second temperature sensor 63 is arranged near the air inlet end of the sound absorbing block 6 located at the air outlet of the air supply box 2.

[0040] The multi-bend air guide channel 61 provided in the sound absorbing block 6 increases the path length of the air flow and guides the air flow to repeatedly turn back in the complex bends. This design forces the air to change direction multiple times when it flows through, consumes part of the kinetic energy, weakens the high-frequency vibration in the air flow, and thus reduces the generation of noise. This can significantly reduce the wind noise interference in the laboratory.

[0041] like Figure 4 The cooling assembly 3 is installed at the bottom of the air supply box 2. The cooling assembly 3 includes a spiral water pipe 31. The spiral water pipe 31 is extended in a direction away from the return air duct 17. A plurality of support frames 32 are installed in the air supply box 2. The plurality of support frames 32 are connected to the spiral water pipe 31, so that the spiral water pipe 31 is suspended in the air supply box 2. The spiral water pipe 31 is connected to a water inlet pipe 33 and a drain pipe 34. The water inlet pipe 33 is arranged near the return air duct 17. The end of the spiral water pipe 31 away from the return air duct 17 is connected to a centrifugal pump 8. The drain pipe 34 is connected to the water outlet end of the centrifugal pump 8. The drain pipe 34 and the water inlet pipe 33 both extend out of the air supply box 2 and are connected to the external cooling system. The drain pipe 34 is located above the water inlet pipe 33.

[0042] And because in the large laboratory box 1, due to the increase in volume and internal air circulation path, the water circulation system needs to handle a larger water flow and higher water pressure. At this time, it may be difficult to maintain a stable water circulation relying solely on an external water pump, especially when the air temperature in the air supply box 2 is high, the efficiency of water cooling will be reduced. Therefore, the introduction of a centrifugal pump 8 in the air supply box 2 can enhance the local water flow power, and work in conjunction with the external water pump to provide stronger power for water circulation in a large system, ensuring that the flow rate of water in the spiral water pipe 31 is stable and efficient. In this way, even if the laboratory box 1 is large and the internal air temperature is high, sufficient cooling water circulation can be ensured to maintain the thermal balance of the system.

[0043] like Figure 6 The sound absorbing shell 41 is fixed in the air supply box 2, and the sound absorbing shell 41 is located above the centrifugal pump 8. A motor 42 and a sound absorbing board 43 are arranged in the sound absorbing shell 41. The sound absorbing board 43 is arranged to wrap around the motor 42. The sound absorbing board 43 is provided with a plurality of heat dissipation ducts 431 along the length direction of the outer wall of the fan (i.e., the vertical direction). The heat dissipation ducts 431 penetrate the peripheral surface of the motor 42, the top surface and the bottom surface of the sound absorbing board 43. The motor 42 is arranged upside down (i.e., the drive shaft is arranged downward). The motor 42 is connected to a centrifugal fan 44, and the centrifugal fan 44 is coaxially connected to the centrifugal pump 8.

[0044] The motor 42 drives the centrifugal fan 44 to start, so that the air can circulate in the laboratory box 1 and the air supply box 2. The wind returning from the laboratory box 1 is first cooled by the cooling component 3, and then passes through the heat dissipation duct 431 to dissipate heat and cool the motor 42. In general high-precision laboratories, the wind needs to be cooled first and then heated in multiple passes to accurately meet the temperature requirements of the laboratory. Therefore, the heat source of the motor 42 is used to heat the air for the first time, and then the temperature is adjusted again through the primary heating component 5 and the second electric heating wire 62. It not only solves the problem of heat dissipation of the motor 42, but also reasonably utilizes the heat generated during the operation of the motor 42 to preheat the air, thereby improving the overall energy efficiency of the system. The sound absorbing panel 43 is directly arranged around the motor 42, which can also achieve a good sound insulation effect.

[0045] At the same time, the motor 42 drives the centrifugal fan 44 and the centrifugal pump 8 at the same time through a coaxial structure, which reduces the complexity of the mechanical structure and does not require an additional drive system. The synchronous flow of wind and water ensures the coordination of air cooling and water circulation. When the centrifugal fan 44 is started, the water starts to circulate while the air flows, ensuring that the cooling water always matches the flow rate of the air, providing a more balanced heat exchange effect.

[0046] like Figure 7The centrifugal pump 8 may be a centrifugal pump 8 commonly used on the market. The centrifugal pump 8 provided in the embodiment of the present application includes a water guide seat 81, the water guide seat 81 is provided with an annular water channel 811, an inlet channel 812 and a drain channel 813, the inlet channel 812 and the drain channel 813 are both connected to the annular water channel 811, and a partition 82 is provided in the water guide seat 81, and the partition 82 is arranged in the annular water channel 811 to separate the inlet channel 812 and the drain channel 813; The water guide seat 81 is rotatably connected with a rotating disk 85, the rotating disk 85 is provided with an eccentric protrusion disk 86, the eccentric protrusion disk 86 is installed with an eccentric ring buckle 87, and both ends of the eccentric ring buckle 87 are provided with soft pads 88, and the soft pads 88 abut against the partition 82. The drain pipe 34 of the spiral water pipe 31 is connected with the water inlet 812, the drain pipe 34 is connected with the drain channel 813, and the centrifugal fan 44 is coaxially connected with the rotating disk 85. When the eccentric ring buckle 87 moves, it cooperates with the inner wall of the annular water channel 811, so that the fluid in the annular water channel 811 is squeezed and discharged from the drain channel 813.

[0047] like Figure 4 and Figure 8 The primary heating assembly 5 is located above the sound absorbing shell 41. The primary heating assembly 5 includes a honeycomb carrier 51 and a first temperature sensor 52. The honeycomb carrier 51 is extended in a direction close to the air outlet duct 16. The first temperature sensor 52 is fixed in the air supply box 2, and the first temperature sensor 52 is located between the honeycomb carrier 51 and the sound absorbing shell 41. The honeycomb carrier 51 is provided with a first electric heating wire 53. The first electric heating wire 53 is fixed to the exhaust end face of the honeycomb carrier 51.

[0048] The first temperature sensor 52 is fixed between the honeycomb carrier 51 and the sound absorbing shell 41, and can monitor the temperature change of the air in real time. Therefore, it can be used to determine how much the temperature of the first electric heating wire 53 should be controlled. The first electric heating wire 53 is used to heat the honeycomb carrier 51. When the air passes through the honeycomb carrier 51, heat exchange is performed, thereby adjusting the temperature of the air.

[0049] The honeycomb carrier 51 can not only achieve uniformity of air flow, but also improve heating efficiency. Due to its large surface area, the air can quickly absorb heat, thereby achieving a faster temperature rise. The honeycomb structure can make the air evenly distributed in each channel when passing through, avoiding local air flow turbulence caused by uneven flow rate in the air duct. This helps to maintain the stability of the air flow, thereby effectively reducing wind noise.

[0050] The implementation principle of the embodiment of the present application is as follows: the motor 42 drives the centrifugal fan 44 to start, so that the air can circulate in the laboratory box 1 and the air supply box 2. The wind returning from the laboratory is first cooled by the cooling component 3, and then the motor 42 is cooled by the heat dissipation duct 431. In general high-precision laboratories, the wind needs to be cooled first, and then heated in multiple passes to accurately meet the temperature requirements of the laboratory. Therefore, the heat source of the motor 42 is used to heat the air for the first time, and then the temperature is adjusted again by the primary heating component 5. Not only does it solve the problem of heat dissipation of the motor 42, but it also reasonably utilizes the heat generated during the operation of the motor 42 to preheat the air, thereby improving the overall energy efficiency of the system. The sound absorbing panel 43 is directly arranged around the motor 42, which can also achieve a good sound insulation effect.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A precision environmental control laboratory, characterized by: The invention comprises a laboratory box (1), wherein the laboratory box (1) is connected to an air outlet duct (16) and an air return duct (17), wherein the air outlet duct (16) and the air return duct (17) are connected to an air supply box (2), wherein a cooling component (3) and a primary heating component (5) are arranged in the air supply box (2), wherein a sound absorbing shell (41) is installed in the air supply box (2), wherein a motor (42) and a sound absorbing board (43) are arranged in the sound absorbing shell (41), wherein the sound absorbing board (43) is arranged to wrap around the circumference of the motor (42), wherein the sound absorbing board (43) is provided with a plurality of heat dissipation ducts (431) along the length direction of the outer wall of the fan, wherein the heat dissipation ducts (431) penetrate to the circumference of the motor (42), and wherein the motor (42) is connected to a centrifugal fan (44); After the air in the laboratory box (1) passes through the air outlet duct (16) and enters the air supply box (2), the air passes through the cooling component (3), the centrifugal fan (44), the heat dissipation duct (431), the primary heating component (5) and the return air duct (17) in sequence, and finally the air flows back into the laboratory box (1).

2. The precision environment control laboratory according to claim 1, characterized in that: The top of the laboratory box (1) is provided with an air outlet (11), the bottoms of both sides of the laboratory box (1) are provided with air return ports (13), both sides of the laboratory box (1) are provided with a first air duct (14) and a second air duct (15), and the first air duct (14) is located above the second air duct (15); The air outlet duct (16), the air return duct (17) and the air supply box (2) are each provided with two, the first air duct (14) is connected to the air outlet (11) and the air outlet duct (16), and the second air duct (15) is connected to the air return outlet (13) and the return air duct (17).

3. The precision environment control laboratory according to claim 1, characterized in that: Sound absorbing blocks (6) are provided at both the air outlet and the air return of the air supply box (2); the sound absorbing block (6) is provided with an air guide channel (61); the air guide channel (61) is a multi-bend channel; air is discharged from the sound absorbing block (6) through the air guide channel (61).

4. The precision environment control laboratory according to claim 1, characterized in that: The cooling assembly (3) includes a spiral water pipe (31), a plurality of support frames (32) are installed in the air supply box (2), the plurality of support frames (32) are connected to the spiral water pipe (31), the spiral water pipe (31) is connected to a water inlet pipe (33) and a drain pipe (34), the water inlet pipe (33) is arranged adjacent to the return air duct (17), the drain pipe (34) is arranged away from the return air duct (17), and the water inlet pipe (33) and the drain pipe (34) both extend out of the air supply box (2).

5. The precision environment control laboratory according to claim 4, characterized in that: The centrifugal fan (44) is coaxially connected to a centrifugal pump (8), the drainage end of the spiral water pipe (31) is connected to the water inlet end of the centrifugal pump (8), and the drainage pipe (34) is connected to the water outlet end of the centrifugal pump (8).

6. The precision environment control laboratory according to claim 5, characterized in that: The centrifugal pump (8) comprises a water guide seat (81), the water guide seat (81) is provided with an annular water channel (811), a water inlet channel (812) and a drainage channel (813), the water inlet channel (812) and the drainage channel (813) are both connected to the annular water channel (811), and a partition plate (82) is provided in the water guide seat (81), and the partition plate (82) is arranged in the annular water channel (811) to separate the water inlet channel (812) and the drainage channel (813); The water guide seat (81) is rotatably connected to a rotating disk (85), the rotating disk is provided with an eccentric protrusion disk (86), the eccentric protrusion disk (86) is installed with an eccentric ring buckle (87), both ends of the eccentric ring buckle (87) are provided with soft pads (88), the soft pads (88) are in contact with the partition (82), and the eccentric ring buckle (87) cooperates with the inner wall of the annular water channel (811) when moving, so that the fluid in the annular water channel (811) is squeezed and discharged from the drainage channel (813).

7. The precision environment control laboratory according to claim 1, characterized in that: The primary heating component (5) comprises a honeycomb carrier (51) and a first temperature sensor (52); the air inlet end of the honeycomb carrier (51) is arranged adjacent to the air outlet end of the sound absorbing shell (41); the first temperature sensor (52) is fixed in the air supply box (2); and the first temperature sensor (52) is located between the honeycomb carrier (51) and the sound absorbing shell (41); and a first electric heating wire (53) is arranged on the honeycomb carrier (51).

8. The precision environment control laboratory according to claim 3, characterized in that: The sound absorbing block (6) at the air outlet of the air supply box (2) is equipped with a second electric heating wire (62), a second temperature sensor (63) is arranged between the sound absorbing block (6) and the primary heating component (5), and the second temperature sensor (63) is fixed in the air supply box (2).

9. The precision environment control laboratory according to claim 2, characterized in that: The air outlet (11) of the laboratory box (1) is installed with a filter screen (12), and the air supply box (2) is installed with a control cabinet (7).

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