A method for collecting temperature difference data of air inlet and outlet of a dryer and regulating gas flow

Abstract

This invention discloses a method for acquiring temperature difference data at the inlet and outlet of a dryer and regulating gas flow. It employs a system that continuously collects temperature data of compressed air at the inlet and outlet using a temperature sensor to obtain the air temperature difference, and adjusts the compressed air flow rate based on this temperature difference. This system can improve the dehydration rate and processing capacity of compressed air. The system is characterized by including a gas flow regulation device, an inlet temperature sensor, an outlet temperature sensor, and a control backend. Specifically, the gas flow regulation device is located at the inlet of the refrigerated dryer to regulate the flow rate of compressed air entering the dryer; the inlet temperature sensor is located at the inlet of the refrigerated dryer to collect data on the temperature of the compressed air at the inlet; and the outlet temperature sensor is located at the outlet of the refrigerated dryer to collect data on the temperature of the dried compressed air before heat exchange at the outlet.

Description

Technical Field

[0001] This invention relates to a method for collecting temperature difference data at the inlet and outlet of a dryer and regulating gas flow rate. It involves collecting temperature difference data at the inlet and outlet of a refrigerated dryer and regulating the compressed air flow rate accordingly. It belongs to the field of dryer technology and specifically relates to a control system that continuously collects temperature data of compressed air at the inlet and outlet using a temperature sensor to obtain the air temperature difference value, and adjusts the compressed air flow rate according to the temperature difference value to ensure that the temperature of the compressed air after cooling and drying rises back to a certain range. Background Technology

[0002] Refrigerated air dryers work on the principle of refrigeration dehumidification. Compressed air is forced through an evaporator for heat exchange to cool it down, causing gaseous water in the compressed air to condense into liquid water, which is then discharged through an automatic drain. This results in clean, dry compressed air. After cooling and separation, the dried compressed air returns to the heat exchanger to exchange heat with the compressed air entering through the inlet, raising its temperature and preventing secondary problems such as condensation, dripping, and rust in the outlet duct. However, the temperature of the cooled and dried compressed air cannot be precisely controlled, and the amount of compressed air entering through the inlet is fixed. When the temperature of the cooled and dried compressed air is too low, the temperature rise after heat exchange is not significant, still leading to secondary problems such as condensation, dripping, and rust in the outlet duct, affecting the normal operation of the refrigerated air dryer.

[0003] CN209348381U discloses a refrigerated dryer, including an air tank, a refrigerated dryer, and an HC filter. An expansion valve capillary tube is provided on the right side of the air tank, and the expansion valve capillary tube is embedded in the air tank on the left side. An HC filter is provided on the right side of the expansion valve capillary tube and welded into the expansion valve capillary tube. The amount of compressed air introduced into the air inlet of the refrigerated dryer is fixed. Since the temperature of the compressed air after cooling and drying cannot be precisely controlled, when the temperature of the compressed air after cooling and drying is too low, its temperature rise after heat exchange is not obvious, which still leads to secondary problems such as condensation, dripping water, and rust in the air outlet pipe, affecting the normal operation of the refrigerated dryer.

[0004] CN210332205U discloses a refrigerated dryer, including a refrigerated dryer. A geared motor is fixedly connected to the back of the inner wall of the refrigerated dryer, and a disc is fixedly connected to the output end of the geared motor. Connecting plates are movably connected to the top and bottom of the disc. The amount of compressed air introduced into the air inlet of the refrigerated dryer is fixed. Since the temperature of the compressed air after cooling and drying cannot be precisely controlled, when the temperature of the compressed air after cooling and drying is too low, its temperature rise after heat exchange is not obvious, which will still lead to secondary problems such as condensation, dripping water, and rust in the air outlet pipe, affecting the normal operation of the refrigerated dryer. Summary of the Invention

[0005] To improve the above situation, the present invention provides a method for collecting temperature difference data at the inlet and outlet of a dryer and regulating gas flow. This method provides a regulating system that continuously collects temperature data of compressed air at the inlet and outlet using a temperature sensor to obtain the air temperature difference, and adjusts the compressed air flow rate according to the temperature difference. This ensures that the temperature of the compressed air after cooling and drying rises back to a certain range, preventing secondary problems such as condensation, dripping, and rust in the outlet pipe.

[0006] The present invention discloses a dryer inlet and outlet temperature difference data acquisition and gas flow control system, which is implemented as follows: The dryer inlet and outlet temperature difference data acquisition and gas flow control system includes a gas flow control device, an inlet air temperature sensor, an outlet air temperature sensor, and a control backend.

[0007] The gas flow control device is characterized in that it is installed at the air inlet of the refrigerated dryer and is used to control the flow rate of compressed air entering the dryer.

[0008] The inlet air temperature sensor is installed at the air inlet of the refrigerated dryer to collect data on the temperature of the compressed air at the inlet.

[0009] The outlet air temperature sensor is installed at the outlet of the refrigerated dryer to collect data on the temperature of the dried compressed air before heat exchange at the outlet.

[0010] Preferably, the gas flow control device establishes signal interaction with the control backend, the inlet air temperature sensor establishes signal interaction with the control backend, and the outlet air temperature sensor establishes signal interaction with the control backend.

[0011] Preferably, the control backend includes a signal conversion module and a data processing module.

[0012] The gas flow control device consists of a main component and a flow regulation component.

[0013] The main component consists of an adjusting outer cylinder, a first connecting block, a connecting flange, a connecting sleeve, a T-shaped limiting groove, a second connecting block, an air outlet, an adjusting inner cylinder, and an air inlet.

[0014] The first connecting block is placed at one end of the adjusting outer cylinder, and the second connecting block is placed at the other end of the adjusting outer cylinder.

[0015] Preferably, the adjusting outer cylinder has a cylindrical structure, and the diameter of the adjusting outer cylinder gradually decreases from the middle to both ends.

[0016] Preferably, both the first connecting block and the second connecting block are cylindrical structures.

[0017] The inner adjusting cylinder is placed inside the outer adjusting cylinder. One end of the inner adjusting cylinder is connected to the first connecting block, and the other end of the inner adjusting cylinder is connected to the second connecting block.

[0018] Preferably, the adjusting inner cylinder has a cylindrical structure, and the diameter of the adjusting inner cylinder gradually increases from the middle to both ends.

[0019] The first connecting block has an air vent in the middle, and the air vent is connected to one end of the adjusting inner cylinder.

[0020] The second connecting block has an air inlet in the middle, and the air inlet is connected to the other end of the adjusting inner cylinder.

[0021] The first connecting block has a T-shaped limiting groove.

[0022] Preferably, the T-shaped limiting groove is located near the air outlet, and the cross-section of the T-shaped limiting groove is arc-shaped.

[0023] The connecting sleeve is placed on the first connecting block, and the connecting sleeve and the first connecting block are fixedly connected by a connecting flange.

[0024] The flow regulation assembly consists of a rotating adjustment plate, a rotating connecting part, a rotating limiting part, a rotating shaft, a T-shaped slider, and a rotary motor.

[0025] The rotary motor is positioned between the adjusting outer cylinder and the adjusting inner cylinder.

[0026] Preferably, the rotary motor is equipped with a controller, and the controller establishes signal interaction with the control backend.

[0027] The rotating shaft is mounted on a rotary motor, with one end connected to the rotary motor and the other end extending outward through the first connecting block.

[0028] The rotating connection is placed on the rotating adjustment plate.

[0029] Preferably, the rotating adjusting plate has a circular structure, and the rotating adjusting plate has a clearance portion, and the rotating adjusting plate corresponds to the air outlet.

[0030] Preferably, the rotating connection part has an arc-shaped structure.

[0031] The rotating connecting part has a mounting hole, and the rotating connecting part is fitted onto the other end of the rotating shaft through the mounting hole.

[0032] The rotation limit part is placed on the rotation adjustment plate.

[0033] Preferably, the rotation limiting part has an arc-shaped structure, and the rotation limiting part corresponds to the T-shaped limiting groove.

[0034] The T-shaped slider is placed on the rotation limiting part, and one end of the T-shaped slider is connected to the rotation limiting part.

[0035] Preferably, the other end of the T-shaped slider is slidably placed within the T-shaped limiting groove;

[0036] This invention also relates to a method for collecting temperature difference data at the inlet and outlet of a dryer and controlling gas flow rate, comprising the following steps:

[0037] 1) Install the gas flow control device between the air inlet and the air inlet pipe of the refrigerated dryer using a connecting flange and fixing bolts;

[0038] 2) Collect data on the temperature of compressed air at the air inlet of the refrigerated dryer at specified time intervals using an inlet air temperature sensor, and simultaneously collect data on the temperature of the dried compressed air at the air outlet of the refrigerated dryer before heat exchange using an outlet air temperature sensor, and send the two temperature data sets to the control backend.

[0039] 3) The signal conversion module in the control backend converts the received temperature data into temperature values ​​and sends them to the data processing module;

[0040] 4) After receiving the two temperature values, the data processing module in the control system calculates the temperature difference between the compressed air at the air inlet and outlet. The data processing module then compares and analyzes the temperature difference with the set threshold range.

[0041] 5) When the temperature difference exceeds the set threshold range, it indicates that the temperature of the compressed air after cooling and drying is too low. It is necessary to increase the air intake flow to ensure that the temperature rises to a certain range. At this time, the control background generates a gas flow adjustment command and sends it to the controller. The controller controls the rotary motor to rotate, and drives the rotating connection part and the rotating adjustment plate to rotate in the direction away from the air outlet to further open the air outlet, expand the air outlet range, and increase the flow of compressed air at the air inlet.

[0042] 6) When the temperature difference is less than the set threshold range, it indicates that the temperature of the compressed air after cooling and drying is too high, the cooling separation and dehumidification effect is not good, and the air intake flow is too large. At this time, the control system generates a gas flow adjustment command and sends it to the controller. The controller controls the rotary motor to rotate, and drives the rotating connection part and the rotating adjustment plate to rotate towards the direction of the air outlet to block the air outlet, reduce the air outlet range, and reduce the flow of compressed air at the air inlet.

[0043] Beneficial effects.

[0044] 1. It can continuously collect temperature data of compressed air at the inlet and outlet, and obtain the temperature difference between the compressed air at the inlet and outlet.

[0045] 2. Adjust the compressed air flow rate according to the temperature difference to ensure that the temperature of the cooled and dried compressed air rises back to a certain range, and prevent secondary problems such as condensation, dripping water, and rust from occurring in the air outlet duct. Attached Figure Description

[0046] Figure 1 This is a three-dimensional structural diagram of the gas flow control device of the dryer inlet and outlet air temperature difference data acquisition and gas flow control system of the present invention;

[0047] Figure 2 This is a three-dimensional structural diagram of the gas flow control device of the dryer inlet and outlet temperature difference data acquisition and gas flow control system of the present invention, which only shows the structure of the first connecting block.

[0048] Figure 3 This is a schematic diagram of the gas flow control device of the dryer inlet and outlet temperature difference data acquisition and gas flow control system of the present invention. It only shows the structure of the rotating adjustment plate.

[0049] Figure 4 This is a schematic diagram of the gas flow control device of the dryer inlet and outlet temperature difference data acquisition and gas flow control system of the present invention;

[0050] Figure 5 This is a three-dimensional structural diagram of the gas flow control device of the dryer inlet and outlet temperature difference data acquisition and gas flow control system of the present invention, which only shows the structure of the second connecting block.

[0051] In the attached diagram

[0052] The components are: adjusting outer cylinder (1), first connecting block (2), connecting flange (3), connecting sleeve (4), rotating adjusting plate (5), T-shaped limiting groove (6), second connecting block (7), rotating connecting part (8), rotating limiting part (9), rotating shaft (10), air outlet (11), T-shaped slider (12), adjusting inner cylinder (13), air inlet (14), and rotating motor (15). Detailed Implementation

[0053] The present invention discloses a dryer inlet and outlet temperature difference data acquisition and gas flow control system, which is implemented as follows: it includes a gas flow control device, an inlet air temperature sensor, an outlet air temperature sensor, and a control backend.

[0054] The gas flow control device is characterized in that it is installed at the air inlet of the refrigerated dryer and is used to control the flow rate of compressed air entering the dryer.

[0055] The inlet air temperature sensor is installed at the air inlet of the refrigerated dryer to collect data on the temperature of the compressed air at the inlet.

[0056] The outlet air temperature sensor is installed at the outlet of the refrigerated dryer to collect data on the temperature of the dried compressed air before heat exchange at the outlet.

[0057] Preferably, the gas flow control device establishes signal interaction with the control backend, the inlet air temperature sensor establishes signal interaction with the control backend, and the outlet air temperature sensor establishes signal interaction with the control backend.

[0058] Preferably, the control backend includes a signal conversion module and a data processing module.

[0059] The gas flow control device consists of a main component and a flow regulation component.

[0060] The main component consists of an adjusting outer cylinder (1), a first connecting block (2), a connecting flange (3), a connecting sleeve (4), a T-shaped limiting groove (6), a second connecting block (7), an air outlet (11), an adjusting inner cylinder (13), and an air inlet (14).

[0061] The first connecting block (2) is placed at one end of the adjusting outer cylinder (1), and the second connecting block (7) is placed at the other end of the adjusting outer cylinder (1).

[0062] Preferably, the adjusting outer cylinder (1) has a cylindrical structure, and the diameter of the adjusting outer cylinder (1) gradually decreases from the middle to both ends.

[0063] Preferably, the first connecting block (2) is a cylindrical structure, and the second connecting block (7) is a cylindrical structure.

[0064] The inner adjusting cylinder (13) is placed inside the outer adjusting cylinder (1). One end of the inner adjusting cylinder (13) is connected to the first connecting block (2), and the other end of the inner adjusting cylinder (13) is connected to the second connecting block (7).

[0065] Preferably, the adjusting inner cylinder (13) has a cylindrical structure, and the diameter of the adjusting inner cylinder (13) gradually increases from the middle to both ends.

[0066] The first connecting block (2) has an air outlet (11) in the middle, and the air outlet (11) is connected to one end of the adjusting inner cylinder (13).

[0067] The second connecting block (7) has an air inlet (14) in the middle, and the air inlet (14) is connected to the other end of the adjusting inner cylinder (13).

[0068] The first connecting block (2) has a T-shaped limiting groove (6).

[0069] Preferably, the T-shaped limiting groove (6) is located near the air outlet (11), and the cross-section of the T-shaped limiting groove (6) is an arc-shaped structure.

[0070] The connecting sleeve (4) is placed on the first connecting block (2), and the connecting sleeve (4) and the first connecting block (2) are fixedly connected by a connecting flange (3).

[0071] The flow regulation assembly consists of a rotating adjustment plate (5), a rotating connection part (8), a rotating limit part (9), a rotating shaft (10), a T-shaped slider (12), and a rotary motor (15).

[0072] The rotary motor (15) is positioned between the adjusting outer cylinder (1) and the adjusting inner cylinder (13).

[0073] Preferably, the rotary motor (15) is equipped with a controller, and the controller establishes signal interaction with the control backend.

[0074] A rotating shaft (10) is placed on a rotary motor (15). One end of the rotating shaft (10) is connected to the rotary motor (15), and the other end extends outward through the first connecting block (2).

[0075] The rotating connecting part (8) is placed on the rotating adjusting plate (5).

[0076] Preferably, the rotating adjustment plate (5) has a circular structure, and the rotating adjustment plate (5) has a clearance portion. The rotating adjustment plate (5) corresponds to the air outlet (11).

[0077] Preferably, the rotating connecting part (8) has an arc-shaped structure.

[0078] The rotating connecting part (8) has a mounting hole, and the rotating connecting part (8) is fitted onto the other end of the rotating shaft (10) through the mounting hole.

[0079] The rotation limit part (9) is placed on the rotation adjustment plate (5).

[0080] Preferably, the rotation limiting part (9) has an arc-shaped structure, and the rotation limiting part (9) corresponds to the T-shaped limiting groove (6).

[0081] The T-shaped slider (12) is placed on the rotation limiting part (9), and one end of the T-shaped slider (12) is connected to the rotation limiting part (9).

[0082] Preferably, the other end of the T-shaped slider (12) is slidably placed in the T-shaped limiting groove (6);

[0083] This invention also relates to a method for collecting temperature difference data at the inlet and outlet of a dryer and controlling gas flow rate, comprising the following steps:

[0084] 1) Install the gas flow control device between the air inlet and the air inlet pipe of the refrigerated dryer via the connecting flange (3) and fixing bolts;

[0085] 2) Collect data on the temperature of compressed air at the air inlet of the refrigerated dryer at specified time intervals using an inlet air temperature sensor, and simultaneously collect data on the temperature of the dried compressed air at the air outlet of the refrigerated dryer before heat exchange using an outlet air temperature sensor, and send the two temperature data sets to the control backend.

[0086] Preferably, the specified time interval is adjusted according to the different compressed air flow rates and drying times.

[0087] 3) The signal conversion module in the control backend converts the received temperature data into temperature values ​​and sends them to the data processing module;

[0088] 4) After receiving the two temperature values, the data processing module in the control system calculates the temperature difference between the compressed air at the air inlet and outlet. The data processing module then compares and analyzes the temperature difference with the set threshold range.

[0089] 5) When the temperature difference exceeds the set threshold range, it means that the temperature of the compressed air after cooling and drying is too low. It is necessary to increase the air intake flow to ensure that the temperature rises to a certain range. At this time, the control background generates a gas flow adjustment command and sends it to the controller. The controller controls the rotary motor (15) to rotate. Through the rotating shaft (10), the rotating connection part (8) and the rotating adjustment plate (5) rotate in the direction away from the air outlet (11) to further open the air outlet (11), expand the air outlet range of the air outlet (11), and increase the flow of compressed air at the air inlet.

[0090] 6) When the temperature difference is less than the set threshold range, it means that the temperature of the compressed air after cooling and drying is too high, the cooling separation and dehumidification effect is not good, and the air intake flow is too large. At this time, the control system generates a gas flow adjustment command and sends it to the controller. The controller controls the rotary motor (15) to rotate, and drives the rotating connection part (8) and the rotating adjustment plate (5) to rotate towards the direction close to the air outlet (11) to block the air outlet (11), reduce the air outlet range of the air outlet (11), and reduce the flow of compressed air at the air inlet.

[0091] Preferably, the control system adjusts the compressed air flow rate in real time based on the change in the temperature difference between the inlet and outlet compressed air.

[0092] The regulating outer cylinder (1) is a cylindrical structure. The diameter of the regulating outer cylinder (1) gradually decreases from the middle to both ends. This design can expand the volume of the regulating outer cylinder (1) to accommodate the fixed rotary motor (15). Then, the rotary motor (15) drives the rotating regulating plate (5) to rotate and adjust the air flow of the air outlet (11).

[0093] The T-shaped limiting groove (6) is close to the air outlet (11). The T-shaped limiting groove (6) has an arc-shaped cross-section, which can limit the T-shaped slider (12) and the rotating adjustment plate (5) to prevent the rotating adjustment plate (5) from loosening and detaching from the rotating shaft (10) due to the impact of the airflow, thus making it impossible to adjust the airflow.

[0094] The rotating adjustment plate (5) has a clearance part. The design of the rotating adjustment plate (5) and the air outlet (11) is such that the air outlet (11) always has a gap for air outlet under the cover of the rotating adjustment plate (5), ensuring a certain air flow. At the same time, the clearance part can avoid the air outlet (11) when the rotating adjustment plate (5) rotates to adjust the gas flow, thus expanding the flow adjustment range.

[0095] The rotating connection part (8) is designed with an arc structure, which can avoid the connecting flange (3) so that the rotating adjustment plate (5) can rotate smoothly to adjust the air flow.

[0096] The rotating adjustment plate (5) works in conjunction with the air outlet (11). By rotating the rotating adjustment plate (5), the air outlet (11) can be blocked to different degrees, thereby adjusting the air flow of the air outlet (11).

[0097] The T-shaped slider (12) works in conjunction with the T-shaped limiting groove (6) to limit the rotation adjustment plate (5) and prevent it from loosening and detaching from the rotating shaft (10) due to airflow impact, thus making it impossible to adjust the airflow.

[0098] The rotary motor (15) works with the rotating shaft (10) to drive the rotating connection part (8) and the rotating adjustment plate (5) to rotate, thereby blocking the air outlet (11) to different degrees and adjusting the air flow of the air outlet (11).

[0099] This ensures that the temperature of the compressed air after cooling and drying rises to a certain range, preventing secondary problems such as condensation, dripping, and rust in the air outlet duct.

[0100] It should be noted that, unless otherwise explicitly specified and limited, the terms "placed," "connected," and "linked" should be interpreted broadly. For example, they can refer to fixed connections such as folded edges, rivets, pins, adhesives, and welds; detachable connections such as threaded connections, snap-fit ​​connections, and hinges; integral connections; electrical connections; direct connections; or indirect connections via an intermediate medium; or internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0101] The above embodiments are preferred embodiments of the present invention. To save space, the applicant has not added other embodiments, but this is not intended to limit the scope of the present invention. Any person skilled in the art can make some modifications without departing from the scope of the present invention; that is, all equivalent modifications made in accordance with the present invention should be covered by the scope of the present invention.

Claims

1. A dryer inlet and outlet temperature difference data acquisition and gas flow control system, comprising a gas flow control device, an inlet air temperature sensor, an outlet air temperature sensor, and a control backend, characterized in that, The gas flow control device is installed at the air inlet of the refrigerated dryer to regulate the flow rate of compressed air entering the dryer. The inlet air temperature sensor is installed at the air inlet of the refrigerated dryer to collect data on the temperature of the compressed air at the inlet. The outlet air temperature sensor is installed at the air outlet of the refrigerated dryer to collect data on the temperature of the dried compressed air before heat exchange at the outlet. The gas flow control device, the inlet air temperature sensor, and the outlet air temperature sensor all establish signal interaction with the control backend. The interactive control backend includes a signal conversion module and a data processing module. The gas flow control device consists of a main component and a flow regulation component. The main component comprises an outer regulating cylinder, a first connecting block, a connecting flange, a connecting sleeve, a T-shaped limiting groove, a second connecting block, an outlet, an inner regulating cylinder, and an inlet. The first connecting block is located at one end of the outer regulating cylinder, and the second connecting block is located at the other end. Both the first and second connecting blocks are cylindrical. The inner regulating cylinder is placed inside the outer regulating cylinder. One end of the inner regulating cylinder is connected to the first connecting block, and the other end of the inner regulating cylinder is connected to the second connecting block. The two connecting blocks are connected. The first connecting block has an air outlet in its middle, which is connected to one end of the adjusting inner cylinder. The second connecting block has an air inlet in its middle, which is connected to the other end of the adjusting inner cylinder. The first connecting block has a T-shaped limiting groove. A connecting sleeve is placed on the first connecting block, and the connecting sleeve and the first connecting block are fixedly connected by a connecting flange. The flow regulating assembly consists of a rotating adjusting plate, a rotating connecting part, a rotating limiting part, a rotating shaft, a T-shaped slider, and a rotating motor. The rotating motor is placed between the adjusting outer cylinder and the adjusting inner cylinder. A controller is mounted on the rotating motor, and the controller and the control backend are connected. The system features signal interaction, with a rotating shaft mounted on a rotary motor. One end of the rotating shaft is connected to the rotary motor, and the other end extends outward through a first connecting block. A rotating connecting part is placed on a rotating adjustment plate, which has a circular structure. The rotating connecting part has mounting holes, allowing it to be fitted onto the other end of the rotating shaft. A rotating limiting part is placed on the rotating adjustment plate, and it has an arc-shaped structure. The rotating limiting part corresponds to a T-shaped limiting groove, and a T-shaped slider is placed on the rotating limiting part. One end of the T-shaped slider is connected to the rotating limiting part, and the other end of the T-shaped slider is slidably placed within the T-shaped limiting groove.

2. The dryer inlet and outlet temperature difference data acquisition and gas flow control system according to claim 1, characterized in that... The adjusting outer cylinder has a cylindrical structure, and its diameter gradually decreases from the middle to both ends, which can increase the volume of the adjusting outer cylinder for placing a fixed rotating motor.

3. The dryer inlet and outlet temperature difference data acquisition and gas flow control system according to claim 1, characterized in that... The adjusting inner cylinder has a cylindrical structure, and its diameter gradually increases from the middle to both ends.

4. The dryer inlet and outlet temperature difference data acquisition and gas flow control system according to claim 1, characterized in that... The T-shaped limiting groove is located near the air outlet. The cross-section of the T-shaped limiting groove is arc-shaped, which can limit the T-shaped slider and the rotating adjustment plate, and prevent the rotating adjustment plate from loosening and detaching from the rotating shaft due to the impact of the airflow.

5. The dryer inlet and outlet temperature difference data acquisition and gas flow control system according to claim 1, characterized in that... The rotating connection part has an arc-shaped structure, which can avoid the connecting flange.

6. The dryer inlet and outlet temperature difference data acquisition and gas flow control system according to claim 4, characterized in that... The rotating adjustment plate has a clearance part, which corresponds to the air outlet. This ensures that the air outlet always has a gap for air to escape under the obstruction of the rotating adjustment plate, thus guaranteeing a certain air flow. At the same time, the clearance part can avoid the air outlet when the rotating adjustment plate rotates to adjust the gas flow, thereby expanding the flow adjustment range.

7. The dryer inlet and outlet temperature difference data acquisition and gas flow control system according to claim 6, characterized in that... The rotating adjustment plate, in conjunction with the air outlet, allows for varying degrees of obstruction of the air outlet by rotating the plate, thereby adjusting the airflow rate.

8. The dryer inlet and outlet temperature difference data acquisition and gas flow control system according to claim 4, characterized in that... The T-shaped limiting groove, in conjunction with the T-shaped slider, can limit the rotation adjustment plate to prevent it from loosening and detaching from the rotating shaft due to airflow impact, thus preventing the airflow from being adjusted.

9. A dryer inlet and outlet temperature difference data acquisition and gas flow control system according to claim 2, characterized in that... The rotary motor, in conjunction with the rotating shaft, can drive the rotating connecting part and the rotating adjusting plate to rotate, thereby blocking the air outlet to varying degrees and adjusting the air flow of the air outlet.

10. A method for acquiring temperature difference data at the inlet and outlet of a dryer and regulating gas flow, referring to the system for acquiring temperature difference data at the inlet and outlet of a dryer and regulating gas flow as described in any one of claims 1-9, characterized in that: Specifically, the following steps are included: 1) Install the gas flow control device between the air inlet and the air inlet pipe of the refrigerated dryer using a connecting flange and fixing bolts; 2) Collect data on the temperature of compressed air at the air inlet of the refrigerated dryer at specified time intervals using an inlet air temperature sensor, and simultaneously collect data on the temperature of the dried compressed air at the air outlet of the refrigerated dryer before heat exchange using an outlet air temperature sensor, and send the two temperature data sets to the control backend. 3) The signal conversion module in the control backend converts the received temperature data into temperature values ​​and sends them to the data processing module; 4) After receiving the two temperature values, the data processing module in the control system calculates the temperature difference between the compressed air at the air inlet and outlet. The data processing module then compares and analyzes the temperature difference with the set threshold range. 5) When the temperature difference exceeds the set threshold range, it indicates that the temperature of the compressed air after cooling and drying is too low. It is necessary to increase the air intake flow to ensure that the temperature rises to a certain range. At this time, the control background generates a gas flow adjustment command and sends it to the controller. The controller controls the rotary motor to rotate, and drives the rotating connection part and the rotating adjustment plate to rotate in the direction away from the air outlet to further open the air outlet, expand the air outlet range, and increase the flow of compressed air at the air inlet. 6) When the temperature difference is less than the set threshold range, it indicates that the temperature of the compressed air after cooling and drying is too high, the cooling separation and dehumidification effect is not good, and the air intake flow is too large. At this time, the control system generates a gas flow adjustment command and sends it to the controller. The controller controls the rotary motor to rotate, and drives the rotating connection part and the rotating adjustment plate to rotate towards the direction of the air outlet to block the air outlet, reduce the air outlet range, and reduce the flow of compressed air at the air inlet.

Images