Air inlet temperature control equipment and method for calcifediol spray drying tower

Abstract

The invention discloses a calcifediol spray drying tower air inlet temperature control device and method, and relates to the technical field of calcifediol production equipment.The calcifediol spray drying tower air inlet temperature control device comprises an air inlet pipe, a plurality of heating pipes are arranged in the air inlet pipe at equal intervals, and a plurality of temperature sensors are fixedly arranged on the surface of the air inlet pipe; the temperature sensors are evenly distributed in the air inlet pipe in the circumferential direction and the axial direction of the air inlet pipe, and inductive probes of the temperature sensors penetrate through the air inlet pipe and extend into the air inlet pipe. The device has the beneficial effects that the plurality of temperature sensors which are uniformly distributed in the circumferential direction and the axial direction of the air inlet pipe and of which the sensing probes extend into the air inlet pipe can comprehensively detect the air temperature at different positions in the air inlet pipe, and compared with a single sensor, more accurate and comprehensive temperature data can be obtained, a reliable basis is provided for subsequent temperature regulation and control, and the device is suitable for popularization and application. The accuracy of inlet air temperature detection is effectively improved, and then the temperature control precision is improved.

Description

Technical Field

[0001] This invention relates to a control device, and more particularly to a device and method for controlling the inlet air temperature of a calcidiol spray drying tower, belonging to the technical field of calcidiol production equipment. Background Technology

[0002] In the production of calcidiol, spray drying is a crucial step, transforming the calcidiol solution into a powdered product using a spray drying tower. Inlet air temperature, a key parameter in the spray drying process, directly impacts the quality, purity, and production efficiency of the calcidiol product. Excessive inlet air temperature can destroy the active ingredients of calcidiol, reducing the product's efficacy; conversely, insufficient drying of the calcidiol solution can lead to clumping, affecting subsequent processing and storage.

[0003] Currently, most existing temperature control devices for the inlet air of the calcidiol spray drying tower use a single temperature sensor for temperature detection. This control method has the following shortcomings: the temperature data detected by a single temperature sensor is limited and cannot fully reflect the actual temperature at different locations in the inlet air duct of the spray drying tower. This can easily lead to inaccurate temperature detection, resulting in low temperature control accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for controlling the inlet air temperature of a calcidiol spray drying tower, in order to solve the problems mentioned in the background art, where existing calcidiol spray drying tower inlet air temperature control often uses a single sensor, whose detection data is limited, making it difficult to fully reflect the actual temperature of the inlet air duct, and easily leading to inaccurate detection and low control precision.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device and method for controlling the inlet air temperature of a calcidiol spray drying tower, comprising an inlet pipe, wherein a plurality of evenly spaced heating tubes are provided inside the inlet pipe, and a plurality of temperature sensors are fixedly provided on the surface of the inlet pipe, and the temperature sensors are evenly distributed along the circumference and axial direction of the inlet pipe inside the inlet pipe, the sensing probe of the temperature sensor penetrates through the inlet pipe and extends into the interior of the inlet pipe, a bracket is provided below the inlet pipe, a controller is provided at the bottom of the bracket, a pressure plate is engaged above the controller, a locking block is fixed at the bottom end of the pressure plate and engaged with the controller, and a support assembly is provided on one side of the bracket.

[0006] As a preferred embodiment of the present invention, the air inlet pipe is wrapped with an insulation layer, and the insulation layer is made of rock wool insulation material.

[0007] As a preferred embodiment of the present invention, both ends of the air inlet pipe are fixedly provided with mounting rings, and the surface of the mounting rings is provided with a plurality of evenly spaced mounting holes.

[0008] As a preferred embodiment of the present invention, mounting blocks are fixedly provided at both ends of the heating tube, and the mounting blocks are fixedly connected to the inner wall of the air inlet pipe.

[0009] As a preferred embodiment of the present invention, the controller is electrically connected to the heating tube and the temperature sensor respectively, and the controller includes a display screen and is electrically connected to the display screen.

[0010] As a preferred embodiment of the present invention, a positioning block is fixedly provided in the middle of the bottom of the inner wall of the bracket, the positioning block is engaged with the bottom of the controller, the top of the bracket is fixedly connected to the bottom of the air inlet pipe through the base plate, and the top of the controller is provided with a slot that engages with the positioning block.

[0011] As a preferred embodiment of the present invention, the support assembly includes a support plate, which is fixedly installed in the middle of one side of the bracket. Two guide rods are symmetrically slidably arranged inside the support plate. The bottom end of the guide rod is fixedly connected to the top end of the pressure plate, and a spring is sleeved on the bottom of the guide rod.

[0012] As a preferred embodiment of the present invention, the bottom end of the spring is fixedly connected to the top end of the pressure plate, the top end of the spring is fixedly connected to the bottom end of the support plate, and a handle is fixedly provided between the two guide rods.

[0013] As a preferred embodiment of the present invention, the control method includes the following steps: (S1) Start the controller and read the real-time temperature data of each point inside the air inlet pipe collected by the temperature sensor; (S2) The controller calculates and compares the collected temperature data to determine whether the air inlet temperature is within the set range; (S3) When the temperature is lower than the set lower limit, the controller sends a heating signal to drive the heating tube to start heating; when the temperature is higher than the set upper limit, the controller stops outputting the heating signal. (S4) The temperature sensor continuously monitors temperature changes and automatically controls the air intake temperature within the set constant temperature range based on the feedback data.

[0014] The control method further includes: (a) During the preheating stage before spray drying, different heating programs are set by the controller so that each heating tube inside the air inlet pipe is heated in sequence to achieve uniform temperature distribution. (b) During the drying operation phase, the temperature curve is displayed in real time on the controller's screen, and the data of each temperature sensor is recorded to realize temperature deviation alarm and adaptive correction; (c) When the rate of change of the inlet air temperature exceeds the set threshold, the controller automatically adjusts the working power of the heating tube to prevent overheating or temperature fluctuation, thereby ensuring the thermal stability of the calcidiol spray drying process and the consistency of product quality.

[0015] Compared with related technologies, the calcidiol spray drying tower inlet air temperature control device and method provided by the present invention have the following beneficial effects: 1. Several temperature sensors, evenly distributed along the circumference and axis of the air inlet duct with their sensing probes extending into the interior of the air inlet duct, can comprehensively detect the air temperature at different locations within the air inlet duct. Compared to a single sensor, this provides more accurate and comprehensive temperature data, offering a reliable basis for subsequent temperature control and effectively improving the accuracy of air inlet temperature detection, thereby enhancing temperature control precision.

[0016] 2. The air inlet duct is equipped with several evenly spaced heating tubes, which can make the air in the air inlet duct more evenly heated, avoid local temperature being too high or too low, ensure the stable temperature of the air entering the spray drying tower, provide a uniform thermal environment for the spray drying of calcidiol, and reduce product quality differences caused by uneven temperature.

[0017] 3. The controller at the bottom of the bracket is fixed by the engagement of the pressure plate and the locking block. Together with the support components, it is easy to install and remove the controller quickly. When the controller malfunctions and needs to be repaired or replaced, there is no need for complicated disassembly steps, which can save maintenance time and improve equipment maintenance efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an exploded structural diagram of the air inlet duct of the present invention; Figure 3 This is a schematic cross-sectional view of the air inlet pipe of the present invention; Figure 4 This is a schematic diagram of the structure of the bracket of the present invention; Figure 5 This is an exploded structural diagram of the bracket of the present invention.

[0019] In the diagram: 1. Air inlet duct; 2. Heating element; 3. Temperature sensor; 4. Bracket; 5. Controller; 6. Pressure plate; 7. Locking block; 8. Support assembly; 801. Support plate; 802. Guide rod; 803. Spring; 804. Pull handle; 9. Positioning block; 10. Slot; 11. Base plate; 12. Insulation layer; 13. Mounting block; 14. Mounting ring; 15. Mounting hole. 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 some embodiments of the present invention, and not all embodiments. 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 1-5 This invention provides a device and method for controlling the inlet air temperature of a calcium glycol spray drying tower. The device includes an inlet pipe 1, inside which are arranged a plurality of evenly spaced heating tubes 2. These evenly spaced heating tubes 2 ensure more uniform heating of the air within the inlet pipe 1, preventing localized overheating or underheating and ensuring a stable air temperature entering the spray drying tower. This provides a uniform thermal environment for calcium glycol spray drying and reduces product quality variations caused by uneven temperature. A plurality of temperature sensors 3 are fixedly mounted on the surface of the inlet pipe 1, and these temperature sensors 3 are evenly distributed along the circumference and axial direction of the inlet pipe 1 within its interior. The plurality of temperature sensors 3, evenly distributed along the circumference and axial direction of the inlet pipe 1 with their probes extending into the interior of the inlet pipe 1, can comprehensively detect the temperature at different locations within the inlet pipe 1. Compared to a single sensor, the air temperature sensor can obtain more accurate and comprehensive temperature data, providing a reliable basis for subsequent temperature control and effectively improving the accuracy of air intake temperature detection, thereby improving temperature control precision. The sensing probe of the temperature sensor 3 penetrates through the air intake duct 1 and extends into the interior of the air intake duct 1. A bracket 4 is provided below the air intake duct 1, and a controller 5 is provided at the bottom of the bracket 4. A pressure plate 6 is engaged above the controller 5, and a locking block 7 is fixed at the bottom of the pressure plate 6 and engaged with the controller 5. A support component 8 is provided on one side of the bracket 4. The controller 5 at the bottom of the bracket 4 is fixed by the engagement of the pressure plate 6 and the locking block 7. With the support component 8, the controller 5 can be quickly installed and removed. When the controller 5 malfunctions and needs to be repaired or replaced, there is no need for complicated disassembly steps, which can save maintenance time and improve equipment maintenance efficiency.

[0022] The air inlet duct 1 is wrapped with an insulation layer 12, which is made of rock wool insulation material. The insulation layer 12, which is made of rock wool insulation material, has good thermal insulation performance. On the one hand, it can effectively reduce the heat exchange between the heated air in the air inlet duct 1 and the external environment, reduce heat loss, reduce the workload of the heating tube 2, thereby reducing energy consumption and meeting energy-saving requirements. On the other hand, it can avoid the influence of changes in the external ambient temperature on the air temperature in the air inlet duct 1, ensure the stability of the air temperature in the air inlet duct 1, provide a continuous and stable air inlet temperature environment for the calcium glycol spray drying, and further ensure the stability of product quality.

[0023] The controller 5 is electrically connected to the heating tube 2 and the temperature sensor 3, respectively. The controller 5 includes a display screen and is electrically connected to the display screen. The controller 5 is electrically connected to the heating tube 2 and the temperature sensor 3, respectively. It can receive the temperature signal transmitted by the temperature sensor 3 in real time and automatically adjust the heating power of the heating tube 2 according to the preset temperature range. When the temperature sensor 3 detects that the temperature in the air inlet duct 1 is lower than the preset value, the controller 5 can control the heating tube 2 to increase the heating power and quickly raise the temperature. When the temperature is higher than the preset value, it controls the heating tube 2 to reduce the heating power or stop heating, so as to realize the automated and precise control of the air inlet temperature, reduce manual intervention, improve the efficiency and accuracy of temperature control, and ensure the quality of calcidiol products.

[0024] The support assembly 8 includes a support plate 801, which is fixedly installed in the middle of one side of the bracket 4. Two guide rods 802 are symmetrically slidably arranged inside the support plate 801. The bottom end of each guide rod 802 is fixedly connected to the top end of the pressure plate 6, and a spring 803 is sleeved on the bottom of each guide rod 802. The bottom end of the spring 803 is fixedly connected to the top end of the pressure plate 6, and the top end of the spring 803 is fixedly connected to the bottom end of the support plate 801. A handle 804 is fixedly arranged between the two guide rods 802. The support assembly 8, with the support plate 801 fixed in the middle of one side of the bracket 4, provides stable support for the guide rods 802. The two guide rods symmetrically slidably arranged inside the support plate 801... 802, whose bottom end is fixed to the top of the pressure plate 6, guides the up and down movement of the pressure plate 6, preventing the pressure plate 6 from shifting position when installing or removing the controller 5; the spring 803 sleeved at the bottom of the guide rod 802 exerts downward pressure on the pressure plate 6, further enhancing the tightness of the engagement between the pressure plate 6 and the controller 5, preventing the pressure plate 6 from loosening due to vibration during equipment operation, and thus preventing the controller 5 from shifting; the pull handle 804 between the two guide rods 802 allows the operator to pull the guide rod 802, thereby moving the pressure plate 6 upward, releasing the fixation of the controller 5, facilitating the disassembly of the controller 5, and improving the convenience of equipment maintenance.

[0025] A positioning block 9 is fixedly installed in the middle of the bottom of the inner wall of the bracket 4. The positioning block 9 is engaged with the bottom of the controller 5. The top of the bracket 4 is fixedly connected to the bottom of the air inlet pipe 1 through the base plate 11. The top of the controller 5 has a slot 10 that engages with the locking block 7. The positioning block 9 in the middle of the bottom of the inner wall of the bracket 4 engages with the bottom of the controller 5, which can play a positioning role when the controller 5 is installed, allowing the staff to quickly find the installation position of the controller 5 and improve the installation efficiency. The top of the bracket 4 is fixedly connected to the bottom of the air inlet pipe 1 through the base plate 11, which facilitates the fixing of the bracket 4. The slot 10 on the top of the controller 5 that engages with the locking block 7 forms a precise fit with the locking block 7 of the pressure plate 6, ensuring that the pressure plate 6 can accurately fix the controller 5.

[0026] Both ends of the air inlet pipe 1 are fixedly provided with mounting rings 14, and the surface of the mounting rings 14 is provided with several evenly spaced mounting holes 15; both ends of the heating pipe 2 are fixedly provided with mounting blocks 13, and the mounting blocks 13 are fixedly connected to the inner wall of the air inlet pipe 1; the mounting rings 14 and mounting holes 15 are provided to facilitate the connection and installation of the air inlet pipe 1 with the spray drying tower; the mounting blocks 13 fixed at both ends of the heating pipe 2 are fixedly connected to the inner wall of the air inlet pipe 1, which can stably fix the heating pipe 2 inside the air inlet pipe 1.

[0027] The control method includes the following steps: S1 starts the controller 5 and reads the real-time temperature data of each point inside the air inlet pipe 1 collected by the temperature sensor 3; The S2 controller 5 calculates and compares the collected temperature data to determine whether the air intake temperature is within the set range. When the temperature is below the set lower limit, controller 5 sends a heating signal to drive heating tube 2 to start heating; when the temperature is above the set upper limit, controller 5 stops outputting the heating signal. By setting clear upper and lower temperature thresholds, the controller can achieve immediate and decisive control of the heating element, avoiding heating inertia or adjustment lag problems that may occur in traditional proportional control. This "on / off" threshold control strategy, combined with the comprehensive data provided by multiple temperature sensors in the previous step, ensures that the system can quickly offset temperature fluctuations and strictly constrain the inlet air temperature within the narrow range required by the process, thereby greatly improving the stability and reliability of temperature control and providing a key guarantee for the high-quality production of calcidiol.

[0028] S4 continuously monitors temperature changes through temperature sensor 3 and automatically controls the intake air temperature based on feedback data to keep it within the set constant temperature range.

[0029] Control methods also include: (a) During the preheating stage before spray drying, different heating programs are set by the controller 5 so that each heating tube 2 inside the air inlet pipe 1 is heated in sequence to achieve uniform temperature distribution. (b) During the drying operation phase, the temperature curve is displayed in real time on the display screen of the controller 5, and the data of each temperature sensor 3 is recorded to realize temperature deviation alarm and adaptive correction; (c) When the rate of change of the inlet air temperature is detected to exceed the set threshold, the controller 5 automatically adjusts the working power of the heating tube 2 to prevent overheating or temperature fluctuation, thereby ensuring the thermal stability of the calcidiol spray drying process and the consistency of product quality.

[0030] When in use, first take out the air inlet pipe 1, and use the mounting rings 14 fixed at both ends and the several evenly spaced mounting holes 15 on the surface to align one end of the air inlet pipe 1 with the air inlet of the spray drying tower; use bolts to pass through the mounting holes 15 of the mounting rings 14 and the pre-set connection holes of the air inlet of the spray drying tower, tighten the bolts to complete the fixation, and ensure that the connection is well sealed to avoid air leakage affecting the stability of the air inlet temperature. After installation, check that all component wiring is correct (e.g., the connection between heating element 2, temperature sensor 3, display screen, and controller 5), confirming no short circuits or loose connections; check that there is no obstruction in the air inlet duct 1, and that the probes of heating element 2 and temperature sensor 3 are undamaged; connect the main power supply to the equipment, start the controller 5, and enter the parameter setting interface through the display screen of the controller 5; according to the process requirements of calcium glycol spray drying, preset the air inlet temperature range and set the temperature threshold; then the controller 5 controls the heating element 2 to start heating, the temperature sensor 3 detects the temperature in the air inlet duct 1 in real time and transmits the data to the controller 5, and the display screen shows the detection values ​​and average temperature of each temperature sensor 3 in real time; observe whether the heating element 2 heats normally, whether the temperature gradually increases with the adjustment of heating power, whether the controller 5 can automatically reduce the power of heating element 2 or stop heating when the temperature reaches the preset upper limit, and whether it can automatically increase the power when the temperature is lower than the preset lower limit, ensuring that the temperature control logic is normal; Temperature sensor 3 continuously detects the air temperature at different locations inside the air inlet duct 1 and transmits the data to controller 5 in real time. Controller 5 averages multiple temperature data to obtain the actual air inlet temperature.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An equipment for controlling the inlet air temperature of a calcifediol spray drying tower, comprising an inlet air duct (1), characterized in that, The inside of the air inlet pipe (1) is provided with a plurality of evenly spaced heating pipes (2), the surface of the air inlet pipe (1) is fixedly provided with a plurality of temperature sensors (3), and the temperature sensors (3) are uniformly distributed in the inside of the air inlet pipe (1) along the circumferential direction and the axial direction of the air inlet pipe (1), the sensing probe of the temperature sensor (3) penetrates the air inlet pipe (1) and extends to the inside of the air inlet pipe (1), the bottom of the bracket (4) is provided with a controller (5), the top of the controller (5) is clamped with a pressing plate (6), the bottom end of the pressing plate (6) is fixedly provided with a clamping block (7) clamped with the controller (5), and one side of the bracket (4) is provided with a supporting assembly (8).

2. The device of claim 1, wherein: The outside of the air inlet pipe (1) is wrapped with a heat preservation layer (12), and the material of the heat preservation layer (12) is rock wool heat preservation material.

3. The device of claim 1, wherein: The both ends of the air inlet pipe (1) are fixedly provided with mounting rings (14), and the surface of the mounting ring (14) is provided with a plurality of evenly spaced mounting holes (15).

4. The device of claim 1, wherein: The both ends of the heating pipe (2) are fixedly provided with mounting blocks (13), and the mounting block (13) is fixedly connected with the inner wall of the air inlet pipe (1).

5. The device of claim 1, wherein: The controller (5) is electrically connected with the heating pipe (2) and the temperature sensor (3), respectively, and the controller (5) comprises a display screen and is electrically connected with the display screen.

6. The device of claim 1, wherein: The middle part of the bottom end of the inner wall of the bracket (4) is fixedly provided with a positioning block (9), the positioning block (9) is clamped and connected with the bottom of the controller (5), the top end of the bracket (4) is fixedly connected with the bottom end of the air inlet pipe (1) through a bottom plate (11), and the top end of the controller (5) is provided with a clamping groove (10) clamped and matched with the clamping block (7).

7. The device of claim 1, wherein: The supporting assembly (8) comprises a supporting plate (801), the supporting plate (801) is fixedly installed in the middle of one side of the bracket (4), two guide rods (802) are symmetrically and slidably arranged in the inside of the supporting plate (801), the bottom end of the guide rod (802) is fixedly connected with the top end of the pressing plate (6), and the bottom of the guide rod (802) is provided with a spring (803).

8. The device of claim 7, wherein: The bottom end of the spring (803) is fixedly connected with the top end of the pressing plate (6), the top end of the spring (803) is fixedly connected with the bottom end of the supporting plate (801), and a pull handle (804) is fixedly arranged between the two guide rods (802).

9. A method of controlling the inlet air temperature of a calcifediol spray drying tower, characterized in that, The control method comprises the following steps: (S1) starting the controller (5), reading the real-time temperature data of each point in the inside of the air inlet pipe (1) collected by the temperature sensor (3); (S2) the controller (5) calculates and compares the collected temperature data to determine whether the air inlet temperature is in the set range; (S3) when the temperature is lower than the set lower limit, the controller (5) sends a heating signal to drive the heating pipe (2) to start heating; when the temperature is higher than the set upper limit, the controller (5) stops outputting the heating signal; (S4) continuously monitor the temperature change through the temperature sensor (3), and realize automatic closed-loop regulation and control according to the feedback data, so that the air inlet temperature is kept in the set constant temperature range.

10. The method of controlling the inlet air temperature of an estrodial spray drying tower of claim 9, wherein, The control method further comprises: (a) In the preheating stage before spray drying, different heating programs are set by the controller (5) to realize the uniform distribution of temperature by sequentially partitioning the heating of each heating pipe (2) inside the air inlet pipe (1); (b) In the drying operation stage, the temperature curve is displayed in real time by the display screen of the controller (5), and the data of each temperature sensor (3) is recorded to realize temperature deviation alarm and self-adaptive correction; (c) When it is detected that the air inlet temperature change rate exceeds the set threshold, the controller (5) automatically adjusts the working power of the heating pipe (2) to prevent overheating or temperature fluctuation, thereby ensuring the thermal stability of the calcitriol spray drying process and the consistency of the product quality.

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