Industrial test position air supply and exhaust system and method based on state recognition

Abstract

The invention discloses an industrial test position air supply and exhaust system and method based on state recognition, and the system comprises an air supply pipeline which is disposed at the front side of a test position and is internally provided with an electric switch valve and a multi-blade adjusting valve, and the air supply pipeline employs a jet flow air port; the exhaust pipeline is arranged on the rear side of the test position, and a variable-frequency exhaust fan is arranged in the exhaust pipeline; the air supply pipe is connected with the air supply pipeline, and an air outlet of the air supply pipe is provided with an air supply mechanism; according to the invention, 'accurate regulation and control on demand 'of the air supply and exhaust system is realized, the comprehensive energy consumption is reduced, and meanwhile, the environmental stability is improved.

Description

Technical Field

[0001] This invention relates to the field of industrial equipment ventilation technology, and in particular to an industrial test station ventilation system and method based on state recognition. Background Technology

[0002] The current ventilation systems for industrial testing equipment generally suffer from the following problems: High energy consumption: Traditional systems use a fixed airflow operating mode, which cannot adapt to the inherent discontinuous load characteristics of industrial testing. During the equipment testing cycle, there is a significant time asynchrony between the high-load testing phase and the standby / low-load phase (such as batch testing intervals, model switching gaps, etc.). This fixed static airflow control strategy causes the system to operate continuously when there are no testing tasks or low-heat conditions, and it cannot dynamically adjust the supply and exhaust airflow according to the actual load. This results in significant energy waste and low heat exhaust efficiency during non-working periods or low-load scenarios.

[0003] Insufficient intelligence: The existing system lacks real-time status awareness and cannot accurately determine the status of test positions (such as "machine position needs testing" or "no machine position needs testing"). It relies on manual inspection or timed start-stop, resulting in frequent ineffective air supply and exhaust. In addition, the system cannot be linked with production line data, making it difficult to match the air volume requirements of different test machine models.

[0004] Poor seasonal adaptability: The existing system has difficulty in efficiently switching between winter, transitional season and summer operation modes, and the mixing ratio of fresh air and exhaust air is not accurately controlled, which affects environmental stability. Summary of the Invention

[0005] The main objective of this invention is to provide an industrial test station ventilation system and method based on state recognition, aiming to solve existing technical problems.

[0006] To achieve the above objectives, the present invention provides an industrial test station ventilation system based on state recognition, comprising: An air supply duct is located in front of the test position and is equipped with an electric switch valve and a multi-leaf regulating valve inside. The air supply duct adopts a jet air outlet. The exhaust duct is located behind the test position and is equipped with a variable frequency exhaust fan. An air supply duct is connected to the air supply pipeline, and its air outlet is equipped with an air supply mechanism.

[0007] Furthermore, the air supply mechanism includes an air guide shroud, on which an air guide pipe is provided. The air guide pipe is movably mounted on a base, and the base is movably mounted on a horizontal guide rail. The end of the horizontal guide rail is connected to a vertical guide rail. The air guide shroud is provided with a connecting component.

[0008] Furthermore, a stepper motor is provided on the base, the output end of the stepper motor is connected to a movable block, the movable block is detachably connected to the base, and a telescopic rod is provided on the movable block, with the air guide pipe fixed to the end of the telescopic rod.

[0009] Furthermore, the first side of the air duct is provided with a first exhaust port, and the second side and the third side of the air duct are respectively provided with second exhaust ports. An exhaust valve is provided at the second exhaust port, and the second exhaust port is inclined toward the direction of the first exhaust port.

[0010] Furthermore, the second and third sides of the air duct are provided with inclined air guide plates, and the side of the air duct is provided with an air guide port that communicates with the air guide plate. The air guide port is connected to the exhaust channel that communicates with the first exhaust port through the air guide channel.

[0011] Furthermore, the connecting assembly includes a guide rod disposed at the end of the air guide cover, the guide rod having a pressing block and a support rod inside, the pressing block and the support rod being slidably engaged via an inclined surface, and a spring being sleeved on the support rod.

[0012] Furthermore, the air supply duct can be configured with a height-adjustable section with a telescopic joint.

[0013] Furthermore, the air inlet of the exhaust duct is equipped with an exhaust hood, which adopts a negative pressure suction structure.

[0014] An industrial test station air supply and exhaust method based on state recognition, employing the aforementioned state recognition-based industrial test station air supply and exhaust system, includes the following steps: Seasonal mode: Detects server heat dissipation temperature and determines whether the server heat dissipation temperature has reached the set upper and lower thresholds. If the upper limit is reached, the exhaust vents are opened in conjunction with the control, the exhaust fan runs at the lowest speed, and the electric air valve opens to the minimum opening to ensure unobstructed air intake and exhaust. If the lower limit is reached, the exhaust fan stops, the electric air valve closes, and the exhaust vents are closed in sequence, and the air supply and exhaust system stops working. Transitional Season Mode: In winter, the system operates with 100% fresh air, and the variable frequency fan automatically adjusts its speed according to the exhaust demand. During the transitional season and summer, it operates in 100% fresh air mode or minimum fresh air mode. Temperature sensors and regulating valves are installed in the system to calculate the corresponding enthalpy value [h=1.01t+d(2500+1.84t)] based on the temperature. The mode is dynamically adjusted according to the enthalpy difference. If the enthalpy value of the return air is greater than that of the outdoor fresh air, only outdoor fresh air is used. If the enthalpy value of the return air is less than that of the outdoor fresh air, the mixing ratio of fresh air and part of the exhaust air is controlled to ensure that the fresh air volume is greater than or equal to the exhaust air volume. Three-level load operation mode: The load is divided into three levels: idle, medium load and full load based on the server's heat dissipation temperature of 25℃, 30℃ and 35℃. These correspond to three operating modes of the system: energy saving, balanced and performance. The PID proportional coefficient is dynamically set to 1.5, 3.5 and 5.5 according to different modes to reduce energy consumption under low load conditions.

[0015] Furthermore, taking the server heat dissipation temperature as the control target, the opening of the exhaust fan and electric damper is automatically controlled based on PID. When the server heat dissipation temperature is detected to be higher than the upper limit of the threshold, the speed of the exhaust fan and the opening of the electric damper are increased step by step to reduce the server heat dissipation temperature by increasing the supply and exhaust air volume and keep it at the preset safe temperature. When the server heat dissipation temperature is detected to be lower than the lower limit of the threshold, the speed of the exhaust fan and the opening of the electric damper are decreased step by step.

[0016] The beneficial effects of this invention are reflected in: This invention achieves "on-demand air supply," avoiding ineffective operation. The jet nozzles of the air supply duct can quickly diffuse high-speed airflow into uniform laminar or turbulent flow, covering the target area of ​​the test equipment and reducing dead zones. The air supply duct is equipped with an electrically operated on / off valve and a multi-leaf regulating valve (or an electrically operated multi-leaf regulating valve) to achieve precise control of the air volume and direction. The air supply duct can be configured with a height-adjustable section with an expansion joint, or adopt a fixed duct structure to adapt to the spatial constraints of different test equipment. Each exhaust duct is independently equipped with a variable frequency fan, which monitors exhaust demand in real time through a PID algorithm and automatically adjusts its speed. Under low-load conditions (such as when there is no test equipment or during low-production periods at night), the variable frequency fan can reduce its speed to 10%-20% of its rated power, resulting in higher energy savings compared to fixed-frequency fans. Each exhaust duct is independently controlled, avoiding airflow interference when multiple ducts are connected in parallel. Compared with traditional open exhaust systems, the application of exhaust hoods significantly improves exhaust gas capture efficiency, focusing only on the exhaust area of ​​the test equipment and reducing the operating power of the variable frequency fan. In addition, the variable frequency fan is equipped with a check valve to prevent backflow and enhance system stability. The combination of jet vents and variable frequency fans enables "precise on-demand control" of the air supply and exhaust system, reducing overall energy consumption and improving environmental stability.

[0017] This invention features seasonal adaptability, dynamically switching operating modes. In winter, it operates with 100% fresh air, with the variable frequency fan automatically adjusting its speed based on exhaust demand. During transitional seasons and summer, it operates in 100% fresh air mode or minimum fresh air mode, optimizing the mixing ratio of fresh and return air. Temperature sensors and regulating valves are installed within the system to dynamically adjust the mode based on temperature differences. A (electric) multi-leaf regulating valve controls the mixing ratio of fresh air and a portion of the return air, ensuring that the fresh air volume is greater than or equal to the return air volume, thus improving environmental stability and comfort. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the industrial test position ventilation system based on state recognition according to the present invention. Figure 2 This is a schematic diagram of the end face structure of the air guide cover of the present invention; Figure 3 This is a schematic cross-sectional view of the internal structure of the air duct of the present invention; Figure 4 This is a schematic diagram of the connection structure between the pressing block and the support rod of the present invention; Figure 5 This is another embodiment of the present invention; Figure 6 This is another embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 100. Air supply duct; 101. Electric on / off valve; 102. Multi-leaf regulating valve; 200. Exhaust duct; 201. Variable frequency exhaust fan; 202. Exhaust hood; 300. Air supply pipe; 400. Air supply mechanism; 401. Air guide hood; 402. Air guide pipe; 4021. First exhaust outlet; 4022. Second exhaust outlet; 4023. Air guide plate; 4024. Air guide port; 403. Base; 404. Horizontal guide rail; 405. Vertical guide rail; 406. Connecting assembly; 4061. Guide rod; 4062. Pressing block; 4063. Support rod; 4064. Spring; 407. Stepper motor; 408. Movable block; 409. Telescopic rod. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-6 This invention provides an industrial test position air supply and exhaust system based on state recognition, including an air supply duct 100 located in front of the test position, and equipped with an electric switch valve 101 and a multi-leaf regulating valve 102 inside to achieve precise control of air supply volume and direction; specifically, the air supply duct 100 adopts a jet air outlet design to ensure that the airflow uniformly covers the core areas such as the equipment air inlet. The exhaust duct 200 is located behind the test position and is equipped with a variable frequency exhaust fan 201 inside to regulate the air volume and prevent backflow. Specifically, multiple exhaust ducts 200 can be set up, and each exhaust duct 200 can be independently controlled for exhaust. The variable frequency exhaust fan 201 is equipped with a check valve to prevent backflow and enhance system stability.

[0022] The air supply duct 300 is connected to the air supply pipe 100, and its air outlet is equipped with an air supply mechanism 400.

[0023] This implementation achieves "precise on-demand control" of the air supply and exhaust system by combining jet vents and variable frequency fans, thereby reducing overall energy consumption and improving environmental stability.

[0024] In one embodiment, the air supply mechanism 400 includes an air guide shroud 401, on which an air guide duct 402 is provided. The air guide duct 402 is movably mounted on a base 403, which is movably mounted on a horizontal guide rail 404. The end of the horizontal guide rail 404 is connected to a vertical guide rail 405. A connecting assembly 406 is provided on the air guide shroud 401. Specifically, the air guide duct 402 supplies air through an independent air supply channel.

[0025] In this embodiment, the air guide shroud 401 is integrated into the test position via the connecting component 406. Based on the real-time temperature feedback from each test position on the test position, it provides targeted airflow to the higher temperature position to assist in rapid temperature adjustment. Specifically, the air guide duct 402 is adjusted horizontally on the horizontal guide rail 404, and its vertical position is controlled by the vertical guide rail 405, so that the air guide duct 402 moves to the designated position for precise airflow, thereby improving the efficiency and quality of temperature regulation.

[0026] In one embodiment, a stepper motor 407 is provided on the base 403, the output end of the stepper motor 407 is connected to a movable block 408, the movable block 408 is detachably connected to the base 403, and a telescopic rod 409 is provided on the movable block 408, with the air duct 402 fixed to the end of the telescopic rod 409.

[0027] In this embodiment, the stepper motor 407 can drive the air duct 402 from a horizontal state to a vertical state, which can accommodate the positional arrangement of test equipment in different test positions. In addition, the air duct 402 can be used to perform precise air delivery to a designated position. Specifically, the stepper motor 407 controls the air duct 402 to rotate to a vertical state, and the telescopic rod 409 extends into the test position to move the air duct 402 to the designated position for air delivery. This allows the system to adapt to different test positions and improves the system's adaptability.

[0028] In one embodiment, the first side of the air duct 402 is provided with a first exhaust port 4021, and the second side and the third side of the air duct 402 are respectively provided with a second exhaust port 4022. An exhaust valve is provided at the second exhaust port 4022, and the second exhaust port 4022 is inclined toward the first exhaust port 4021.

[0029] In this embodiment, when facing vertically arranged test equipment, after the air duct 402 is extended into the test equipment with the help of the telescopic rod 409, air is continuously supplied from the first exhaust port 4021 and the second exhaust port 4022, which can accurately supply air to the test equipment on both sides of the air duct 402, improve air supply efficiency, and meet the air supply needs of different positions.

[0030] In one embodiment, the second and third sides of the air duct 402 are provided with inclined air guide plates 4023, and the side of the air duct 402 is provided with an air guide port 4024 communicating with the air guide plate 4023. The air guide port 4024 is connected to the exhaust channel of the first exhaust port 4021 through the air guide channel.

[0031] Specifically, the second air outlet 4022 has a Y-shaped structure, with one branch for air supply when the telescopic rod 409 moves in one direction and the other branch for air supply when the telescopic rod 409 moves back to its original position.

[0032] In this embodiment, when the vertically arranged test equipment occupies a long space, the telescopic rod 409 drives the air duct 402 to move back and forth, continuously moving and supplying air to the surface of the test equipment, improving the air supply efficiency and thus improving the temperature regulation efficiency. When the air duct 402 returns to its original position, the corresponding branch on the second exhaust port 4022 opens, thereby realizing the supply of air to the test equipment. After the air is supplied, the airflow is guided by the air guide plate 4023 to the exhaust channel connected to the first exhaust port 4021, so that the airflow can be discharged from a unified direction, which is convenient for subsequent discharge through the exhaust pipe 200.

[0033] In one embodiment, the connecting component 406 includes a guide rod 4061 disposed at the end of the air guide cover 401. The guide rod 4061 is provided with a pressing block 4062 and a support rod 4063 inside. The pressing block 4062 and the support rod 4063 are slidably engaged by an inclined surface, and a spring 4064 is sleeved on the support rod 4063.

[0034] In this embodiment, the air guide cover 401 is integrated with the test position. The air supply side panel of the test position is removed, the pressing block 4062 is pressed, the support rod 4063 is pushed to retract into the guide rod 4061, the end of the air guide cover 401 is inserted into the test position, the pressing block 4062 is released, so that the end of the support rod 4063 is fixed against the inner wall of the test position, which facilitates the subsequent adjustment of the position of the air guide tube 402.

[0035] In one embodiment, the air supply duct 300 may be configured with a height-adjustable section with a telescopic joint to accommodate the space constraints of different testing equipment.

[0036] In one embodiment, the air inlet of the exhaust duct 200 is provided with an exhaust hood 202, which adopts a negative pressure suction structure.

[0037] Specifically, it is installed above or to the side of the exhaust port or heating component of the test unit to form a local negative pressure zone, ensuring that most of the exhaust heat from the test unit can be captured and discharged in a directional manner. Compared with traditional open exhaust, this method has a significantly improved exhaust capture efficiency, and it only draws air from the exhaust area of ​​the test unit, reducing the operating power of the variable frequency fan.

[0038] This invention also provides a state-recognition-based industrial test station ventilation method, employing the state-recognition-based industrial test station ventilation system described above, including the following steps: Seasonal mode: Detects server heat dissipation temperature and determines whether the server heat dissipation temperature has reached the set upper and lower thresholds. If the upper limit is reached, the exhaust vents are opened in conjunction with the control, the exhaust fan runs at the lowest speed, and the electric air valve opens to the minimum opening to ensure unobstructed air intake and exhaust. If the lower limit is reached, the exhaust fan stops, the electric air valve closes, and the exhaust vents are closed in sequence, and the air supply and exhaust system stops working. Transitional Season Mode: In winter, the system operates with 100% fresh air, and the variable frequency fan automatically adjusts its speed according to the exhaust demand. During the transitional season and summer, it operates in 100% fresh air mode or minimum fresh air mode. Temperature sensors and regulating valves are installed in the system to calculate the corresponding enthalpy value [h=1.01t+d(2500+1.84t)] based on the temperature. The mode is dynamically adjusted according to the enthalpy difference. If the enthalpy value of the return air is greater than that of the outdoor fresh air, only outdoor fresh air is used. If the enthalpy value of the return air is less than that of the outdoor fresh air, the mixing ratio of fresh air and part of the exhaust air is controlled to ensure that the fresh air volume is greater than or equal to the exhaust air volume.

[0039] In one embodiment, with server heat dissipation temperature as the control target, the opening of the exhaust fan and electric damper is automatically controlled based on PID control. When the server heat dissipation temperature is detected to be higher than the upper threshold, the speed of the exhaust fan and the opening of the electric damper are increased step by step to reduce the server heat dissipation temperature by increasing the supply and exhaust air volume and keep it at a preset safe temperature. When the server heat dissipation temperature is detected to be lower than the lower threshold, the speed of the exhaust fan and the opening of the electric damper are decreased step by step to reduce the supply and exhaust air volume and ensure stable operation of the server test to achieve energy saving and consumption reduction.

[0040] This method also includes a three-level load operation mode: the load is divided into three levels (idle / medium load / full load) based on the server heat dissipation temperature (25℃ / 30℃ / 35℃), which correspond to three system operation modes (energy saving / balanced / performance). The PID proportional coefficient (Kp) (1.5 / 3.5 / 5.5) is dynamically set according to different modes to reduce energy consumption under low load conditions and ensure safe and stable operation of the production line with rapid response under high load conditions.

[0041] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An industrial test station ventilation system based on state recognition, characterized in that: include, An air supply duct (100) is located in front of the test position and is equipped with an electric switch valve (101) and a multi-leaf regulating valve (102) inside. The air supply duct (100) adopts a jet air outlet. An exhaust duct (200) is located behind the test position and is equipped with a variable frequency exhaust fan (201). An air supply duct (300) is connected to the air supply pipe (100), and its air outlet is provided with an air supply mechanism (400).

2. The industrial test station ventilation system based on state recognition as described in claim 1, characterized in that: The air supply mechanism (400) includes an air guide shroud (401), on which an air guide pipe (402) is provided. The air guide pipe (402) is movably mounted on a base (403), and the base (403) is movably mounted on a horizontal guide rail (404). The end of the horizontal guide rail (404) is connected to a vertical guide rail (405). The air guide shroud (401) is provided with a connecting component (406).

3. The industrial test station ventilation system based on state recognition as described in claim 2, characterized in that: The base (403) is provided with a stepper motor (407), the output end of the stepper motor (407) is connected to a movable block (408), the movable block (408) is detachably connected to the base (403), and the movable block (408) is provided with a telescopic rod (409), and the air guide pipe (402) is fixed to the end of the telescopic rod (409).

4. The industrial test station ventilation system based on state recognition as described in claim 3, characterized in that: The first side of the air duct (402) is provided with a first exhaust port (4021), and the second side and the third side of the air duct (402) are respectively provided with a second exhaust port (4022). An exhaust valve is provided at the second exhaust port (4022), and the second exhaust port (4022) is inclined toward the first exhaust port (4021).

5. The industrial test station ventilation system based on state recognition as described in claim 4, characterized in that: The second and third sides of the air duct (402) are provided with inclined air guide plates (4023), and the side of the air duct (402) is provided with an air guide port (4024) that communicates with the air guide plate (4023). The air guide port (4024) is connected to the exhaust channel that connects to the first exhaust port (4021) through the air guide channel.

6. The industrial test station ventilation system based on state recognition as described in claim 2, characterized in that: The connecting assembly (406) includes a guide rod (4061) located at the end of the air guide cover (401). The guide rod (4061) has a pressing block (4062) and a support rod (4063) inside. The pressing block (4062) and the support rod (4063) are slidably engaged by an inclined surface, and a spring (4064) is sleeved on the support rod (4063).

7. The industrial test station ventilation system based on state recognition as described in claim 1, characterized in that: The air supply duct (300) can be configured with a height-adjustable section with a telescopic joint.

8. The industrial test station ventilation system based on state recognition as described in claim 1, characterized in that: The air inlet of the exhaust duct (200) is equipped with an exhaust hood (202), which adopts a negative pressure suction structure.

9. A state-recognition-based industrial test station ventilation method, employing the state-recognition-based industrial test station ventilation system as described in claims 1-8, characterized in that: Includes the following steps, Seasonal mode: Detects server heat dissipation temperature and determines whether the server heat dissipation temperature has reached the set upper and lower thresholds. If the upper limit is reached, the exhaust vents are opened in conjunction with the exhaust fan, which runs at the lowest speed, and the electric air valve opens to the minimum opening to ensure unobstructed air intake and exhaust. If the lower limit is reached, the exhaust fan will be stopped in sequence, the electric air valve will be closed, and the exhaust vent will be closed, thus stopping the operation of the ventilation system. Transitional Season Mode: In winter, the system operates with 100% fresh air, and the variable frequency fan automatically adjusts its speed according to the exhaust demand. During the transitional season and summer, it operates in 100% fresh air mode or minimum fresh air mode. Temperature sensors and regulating valves are installed in the system to calculate the corresponding enthalpy value [h=1.01t+d(2500+1.84t)] based on the temperature. The mode is dynamically adjusted according to the enthalpy difference. If the enthalpy value of the return air is greater than that of the outdoor fresh air, only outdoor fresh air is used. If the enthalpy value of the return air is less than that of the outdoor fresh air, the mixing ratio of fresh air and part of the exhaust air is controlled to ensure that the fresh air volume is greater than or equal to the exhaust air volume. Three-level load operation mode: The load is divided into three levels: idle, medium load and full load based on the server's heat dissipation temperature of 25℃, 30℃ and 35℃. These correspond to three operating modes of the system: energy saving, balanced and performance. The PID proportional coefficient is dynamically set to 1.5, 3.5 and 5.5 according to different modes to reduce energy consumption under low load conditions.

10. The industrial test position air supply and exhaust method based on state recognition as described in claim 9, characterized in that: With server heat dissipation temperature as the control target, the system automatically controls the opening of the exhaust fan and electric damper based on PID control. When the server heat dissipation temperature is detected to be higher than the upper limit of the threshold, the exhaust fan speed and electric damper opening are increased step by step to reduce the server heat dissipation temperature and keep it at the preset safe temperature by increasing the supply and exhaust air volume. When the server heat dissipation temperature is detected to be lower than the lower limit of the threshold, the exhaust fan speed and electric damper opening are decreased step by step.

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