Air cooler deflector and automatic adjustment method thereof

Abstract

The application discloses a cold air blower guide cover and an automatic adjusting method thereof, relates to the technical field of cold air blowers, and connects one end of a front guide cover to an air outlet of a cold air blower shell, fixes a spring telescopic device on the front guide cover, connects a rear guide cover to an output end of the spring telescopic device, sets an electromagnet and a magnetic fixing bolt in cooperation on the spring telescopic device, sets a slot matched with the magnetic fixing bolt on the rear guide cover, further sets a wind speed detection probe and an automatic controller on the spring telescopic device, and extends an end of the wind speed detection probe into the front guide cover. The application can not change the internal structure of the cold air blower, can add a guide cover body to the air outlet side of the cold air blower, can automatically adjust the air outlet angle of the guide cover body according to the actual wind speed, can change the air supply performance, can significantly improve the air supply reachable range and the air supply distance, and can improve the air flow organization distribution in the cold storage, so that the energy consumption of the cold storage is reduced.

Description

Technical Field

[0001] This invention relates to the field of air cooler technology, and more specifically, to an air cooler shroud and its automatic adjustment method. Background Technology

[0002] A cold air cooler is a heat absorption and release device installed in a cold storage room. The heat absorbed in the cold storage room is discharged to the outside atmosphere through refrigerant circulation, thereby maintaining a relatively stable low temperature environment inside the cold storage room.

[0003] In practical engineering applications, the air supply performance of cold storage evaporative coolers cannot meet the needs of cold storage. The reasons include: 1. At the outlet side of the axial fan of the evaporative cooler, the local air supply range suddenly expands, resulting in local energy loss; 2. Due to long-term operation, frost will form on the inlet and outlet sides of the evaporative cooler, resulting in increased local resistance to airflow. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes a evaporative air cooler shroud and its automatic adjustment method. Without changing the internal structure of the evaporative air cooler, a shroud body is added to the air outlet side of the evaporative air cooler. The shroud body can automatically adjust the air outlet angle according to the actual wind speed, thereby changing its air delivery performance. This significantly improves the air delivery range and distance, thereby improving the airflow organization and distribution in the cold storage and reducing the energy consumption of the cold storage.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This invention provides a cooler air shroud, including a cooler housing and a shroud body. The shroud body includes a front shroud, an automatic adjustment module, and a rear shroud. One end of the front shroud is connected to the air outlet of the cooler housing, and the other end of the front shroud is provided with an automatic adjustment module. The automatic adjustment module includes a spring telescopic device, an electromagnet, a magnetic fixing bolt, a wind speed detection probe, and an automatic controller. The spring telescopic device is fixed on the front shroud, and its output end is connected to the rear shroud. The spring telescopic device is provided with a cooperating electromagnet and a magnetic fixing bolt. The rear shroud is provided with a slot that engages with the magnetic fixing bolt. The spring telescopic device is also provided with a wind speed detection probe and an automatic controller. The end of the wind speed detection probe extends into the front shroud, and the spring telescopic device, electromagnet, and wind speed detection probe are all electrically connected to the automatic controller.

[0007] In a preferred embodiment of the present invention, the front guide shroud includes a first straight pipe section, a transition section, and a second straight pipe section connected in sequence. The first straight pipe section is connected to the air outlet protective cover on the air cooler housing via a flange, and the spring telescopic device is disposed on the outer wall of the second straight pipe section.

[0008] In a preferred embodiment of the present invention, both the transition section and the rear fairing are arc-shaped tapered tubes, and the radius of curvature of the transition section is 0.17 to 0.26 m, while the radius of curvature of the rear fairing is 0.21 to 0.3 m.

[0009] In a preferred embodiment of the present invention, the length of the second straight pipe section is 0.08 to 0.17 m.

[0010] In a preferred embodiment of the present invention, an electric heating defrosting module is provided on the first straight pipe section.

[0011] In a preferred embodiment of the present invention, the automatic controller includes a main control chip, a hydraulic controller, and a hydraulic actuator. The electromagnet, the wind speed detection probe, and the hydraulic controller are all electrically connected to the main control chip. The hydraulic controller is electrically connected to the hydraulic actuator, and the output end of the hydraulic actuator is connected to the spring telescoping device.

[0012] The present invention also provides an automatic adjustment method for the air cooler shroud, comprising the following steps:

[0013] Step 1: Select a shroud body of the corresponding size according to the structure of the air cooler;

[0014] Step 2: Connect the air deflector body to the air outlet of the evaporator casing using a flange;

[0015] Step 3: Start the air cooler and test the effect of increasing the airflow speed at the outlet;

[0016] Step 4: Based on the actual cold storage requirements, the wind speed detection probe detects the wind speed in real time. When the main control chip receives a wind speed lower than the set value, the main control chip first controls the electromagnet to open, and the magnetic fixing bolt is attracted by the magnetic attraction. Then, a signal is sent to the hydraulic controller, and the hydraulic controller outputs thrust to the hydraulic actuator. The hydraulic actuator drives the spring extension device to work and push the rear guide shroud to the designated position. Then, the main control chip controls the electromagnet to disconnect. At this time, the magnetic fixing bolt is attracted back into the slot, and finally the effect of automatically adjusting the outlet angle of the rear guide shroud is achieved until the air supply performance of the air cooler meets the requirements of the cold storage.

[0017] Step 5: During the defrosting of the air cooler, the electric heating defrosting module also performs electric heating to remove the frost from the inner surface of the protective cover of the front air outlet of the air cooler and the inner surface of the guide cover.

[0018] In a preferred embodiment of the present invention, in step four, the hydraulic controller is set to accept five different signals, which correspond to five different air outlet angles of the rear diffuser.

[0019] The beneficial effects of this invention are as follows:

[0020] The present invention proposes a cooler air guide hood and its automatic adjustment method. Without changing the internal structure of the cooler, by adding an air guide hood body to the air outlet side of the cooler, and the air guide hood body can automatically adjust the air outlet angle according to the actual wind speed, the air delivery performance is changed, and the air delivery range and air delivery distance are significantly improved, thereby improving the airflow organization and distribution in the cold storage and reducing the energy consumption of the cold storage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a cooler air guide shroud provided in a specific embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the fairing body;

[0023] Figure 3 yes Figure 2 The right view;

[0024] Figure 4 This is a structural diagram of the automatic adjustment module;

[0025] Figure 5 This is the circuit diagram of an automatic controller.

[0026] In the picture:

[0027] 1. Air cooler housing; 11. Air outlet protective cover; 2. Air guide body; 21. Front air guide; 211. First straight pipe section; 212. Transition section; 213. Second straight pipe section; 22. Automatic adjustment module; 221. Spring expansion joint; 222. Electromagnet; 223. Magnetic fixing bolt; 224. Slot; 225. Wind speed detection probe; 226. Automatic controller; 2261. Main control chip; 2262. Hydraulic controller; 2263. Hydraulic actuator; 23. Rear air guide; 3. Electric heating defrosting module. Detailed Implementation

[0028] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1-5As shown, the embodiment provides a cooler air shroud, including a cooler housing 1 and a shroud body 2. The shroud body 2 includes a front shroud 21, an automatic adjustment module 22, and a rear shroud 23. One end of the front shroud 21 is connected to the air outlet of the cooler housing 1, and the other end of the front shroud 21 is provided with the automatic adjustment module 22. The automatic adjustment module 22 includes a spring telescopic device 221, an electromagnet 222, a magnetic fixing bolt 223, a wind speed detection probe 225, and an automatic controller 226. The spring telescopic device 221 is fixed on the front shroud 21. The output end of the spring telescopic device 221 is connected to the rear deflector 23. The spring telescopic device 221 is equipped with a cooperating electromagnet 222 and a magnetic fixing bolt 223. The rear deflector 23 is equipped with a slot 224 that engages with the magnetic fixing bolt 223. The spring telescopic device 221 is also equipped with a wind speed detection probe 225 and an automatic controller 226. The end of the wind speed detection probe 225 extends into the front deflector 21, and the spring telescopic device 221, electromagnet 222, and wind speed detection probe 225 are all electrically connected to the automatic controller 226. In this embodiment, the air cooler housing 1 is equipped with fins, a defrosting heating element, and a refrigerant flow pipe. An axial flow fan is located at the air outlet of the air cooler housing 1 to blow out cold air. The air deflector body 2 is made of aluminum alloy and can automatically adjust the direction of airflow and change its air delivery performance, thereby significantly improving the air delivery range and distance, thus improving the airflow organization and distribution in the cold storage and reducing the energy consumption of the cold storage. The rear air deflector 23 is coaxially arranged with the front air deflector 21 when in a horizontal state. The inner surfaces of both the front air deflector 21 and the rear air deflector 23 are coated with a hydrophobic coating, which can effectively suppress the frosting speed on the inside of the air deflector. There are two or more automatic adjustment modules 22, and the two or more automatic adjustment modules 22 are evenly arranged circumferentially on the outer wall of the front air deflector 21.The automatic adjustment module 22 drives the rear air deflector 23 to rotate, thereby adjusting the airflow angle. The spring telescopic device 221 is a telescopic structure that drives the rear air deflector 23 to rotate. A magnetic fixing bolt 223 is located on the outer shell of the spring telescopic device 221 near the rear air deflector 23 and can slide up and down. The electromagnet 222 and the magnetic fixing bolt 223 work together to fix the rear air deflector 23. When the electromagnet 222 is energized, it attracts the magnetic fixing bolt 223, causing it to disengage from the slot 224, allowing the rear air deflector 23 to move. Conversely, when the electromagnet 222 is de-energized, the bottom end of the magnetic fixing bolt 223 inserts into the slot 224, fixing the spring telescopic device 221 and the rear air deflector 23 together. Five slots 224 are arranged along the generatrix of the rear air deflector 23, corresponding to airflow angles θ of 18°, 27°, and 27° respectively. At positions of 18°, 27°, 36°, 45°, and 54°, and to illustrate the advantages of the structure described in this embodiment, air coolers with the air guide shroud installed (experimental group) and those without the air guide shroud (control group) were tested for air delivery distance, and the following data were obtained: At air delivery angles θ of 18°, 27°, 36°, 45°, and 54°, the experimental group showed an air delivery distance increase of 13.54%, 16.50%, and 19.15% compared to the control group, respectively. The air delivery range increased by 13.71%, 17.41%, 24.41%, 26.38%, and 35.02%, respectively, with the air delivery distance defined as the distance at which the central axial flow velocity decays to 0.1 m / s and the air delivery range defined as the area covered by a wind speed of 1 m / s or higher at 20 m. The air delivery performance of the air cooler's shroud was also tested under different air volumes. The experimental group had an air volume of 7500 m³ / h. 3 / h、7000m 3 / h, 6500m 3 / h, 5500m 3 / h, 5000m 3 At a speed of [value missing], the maximum air delivery distance of the evaporative cooler was increased by 24.23%, 28.22%, 25.10%, 21.62%, and 24.49% respectively compared to the control group, and the air delivery range was increased by 35.02%, 83.46%, 52.06%, 178.67%, and 146.15% respectively. These test data show that the experimental group has better air delivery performance. The wind speed detection probe 225 is used to detect the wind speed at the air outlet of the front guide shroud 21 and can send the detection data to the automatic controller 226. The automatic controller 226 is used to control the coordinated operation of various components. Furthermore, the spring extension valve 221, electromagnet 222, magnetic fixing bolt 223, and other components are all commercially available.

[0030] Specifically, the front guide shroud 21 includes a first straight pipe section 211, a transition section 212, and a second straight pipe section 213 connected in sequence. The first straight pipe section 211 is connected to the air outlet protective cover 11 on the air cooler housing 1 via a flange. A spring expansion joint 221 is disposed on the outer side wall of the second straight pipe section 213. In this embodiment, the diameter of the first straight pipe section 211 should be larger than the diameter of the second straight pipe section 213, and the first straight pipe section 211, the transition section 212, and the second straight pipe section 213 are coaxially arranged and integrally formed. The axial flow fan is located inside the air outlet protective cover 11. The diameter of the large-diameter end of the rear guide shroud 23 should be larger than the diameter of the second straight pipe section 213.

[0031] Specifically, both the transition section 212 and the rear diffuser 23 are arc-shaped tapered tubes, with the radius of curvature R1 of the transition section 212 being 0.17–0.26 m and the radius of curvature R2 of the rear diffuser 23 being 0.21–0.3 m. In this embodiment, the surface of the transition section 212 is concave, and the surface of the rear diffuser 23 is convex.

[0032] Specifically, the length of the second straight pipe section 213 is 0.08 to 0.17 m.

[0033] Specifically, an electric heating defrosting module 3 is installed on the first straight pipe section 211. In this embodiment, the electric heating defrosting module 3 is preferably a heating wire. Since aluminum alloy material has good thermal conductivity, the electric heating module 3 can effectively remove the frost on the inner surface of the air outlet protective cover 11 at the front end of the air cooler and the frost on the inner surface of the guide cover body 2.

[0034] Specifically, the automatic controller 226 includes a main control chip 2261, a hydraulic controller 2262, and a hydraulic actuator 2263. The electromagnet 222, wind speed detection probe 225, and hydraulic controller 2262 are all electrically connected to the main control chip 2261. The hydraulic controller 2262 is electrically connected to the hydraulic actuator 2263, and the output of the hydraulic actuator 2263 is connected to the spring telescopic device 221. In this embodiment, the main control chip 2261 can control the electromagnet 222, wind speed detection probe 225, and hydraulic controller 2262 to work together. The hydraulic controller 2262 is used to control the operation of the hydraulic actuator 2263, which in turn drives the spring telescopic device 221, thereby causing the rear diffuser 23 to rotate.

[0035] This embodiment also provides an automatic adjustment method for the air cooler's air guide cover, including the following steps:

[0036] Step 1: Select the appropriate size of the air shroud body 2 according to the structure of the air cooler;

[0037] Step 2: Connect the air guide body 2 to the air outlet of the air cooler housing 1 via a flange;

[0038] Step 3: Start the air cooler and test the effect of increasing the airflow speed at the outlet;

[0039] Step 4: Based on the actual cold storage requirements, the wind speed detection probe 225 detects the wind speed in real time. When the main control chip 2261 receives a wind speed lower than the set value, the main control chip 2261 first controls the electromagnet 222 to open, and the magnetic fixing bolt 223 is attracted by the magnetic attraction. Then, a signal is input to the hydraulic controller 2262. The hydraulic controller 2262 is set to accept five different signals, which correspond to five different air outlet angles of the rear guide shroud 23. The hydraulic controller 2262 outputs thrust to the hydraulic driver 2263, and the hydraulic driver 2263 drives the spring telescoping device 221 to work, pushing the rear guide shroud 23 to the designated position. Then, the main control chip 2261 controls the electromagnet 222 to be disconnected. At this time, the magnetic fixing bolt 223 is attracted back into the slot 224, and finally the effect of automatically adjusting the outlet angle of the rear guide shroud 23 is achieved until the air supply performance of the evaporator meets the requirements of the cold storage.

[0040] Step 5: When the air cooler is defrosting, the electric heating defrosting module 3 also performs electric heating to remove the frost on the inner surface of the air outlet protective cover 11 at the front end of the air cooler and the inner surface of the guide cover body 2.

[0041] This invention has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. This invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims are also within the protection scope of this invention.

Claims

1. A cooler air shroud, comprising a cooler housing (1) and a shroud body (2), characterized in that: The diffuser body (2) includes a front diffuser (21), an automatic adjustment module (22), and a rear diffuser (23). One end of the front diffuser (21) is connected to the air outlet of the air cooler housing (1), and the other end of the front diffuser (21) is equipped with an automatic adjustment module (22). The automatic adjustment module (22) includes a spring telescoping device (221), an electromagnet (222), a magnetic fixing bolt (223), a wind speed detection probe (225), and an automatic controller (226). The spring telescoping device (221) is fixed on the front diffuser (21), and the output end of the spring telescoping device (221) is connected to a... The rear fairing (23) and the spring telescoping device (221) are provided with an electromagnet (222) and a magnetic fixing bolt (223) that cooperate with each other. The rear fairing (23) is provided with a slot (224) that is inserted into the magnetic fixing bolt (223). The spring telescoping device (221) is also provided with a wind speed detection probe (225) and an automatic controller (226). The end of the wind speed detection probe (225) extends into the front fairing (21), and the spring telescoping device (221), the electromagnet (222) and the wind speed detection probe (225) are all electrically connected to the automatic controller (226).

2. The air cooler shroud according to claim 1, characterized in that: The front guide shroud (21) includes a first straight pipe section (211), a transition section (212), and a second straight pipe section (213) connected in sequence. The first straight pipe section (211) is connected to the air outlet protective cover (11) on the air cooler housing (1) by a flange. The spring telescopic device (221) is set on the outer wall of the second straight pipe section (213).

3. The air cooler shroud according to claim 2, characterized in that: Both the transition section (212) and the rear fairing (23) are arc-shaped tapered tubes, and the radius of curvature of the transition section (212) is 0.17 to 0.26 m, while the radius of curvature of the rear fairing (23) is 0.21 to 0.3 m.

4. The air cooler shroud according to claim 2, characterized in that: The length of the second straight pipe section (213) is 0.08 to 0.17 m.

5. A cooler air guide shroud according to claim 2, characterized in that: An electric heating defrosting module (3) is installed on the first straight pipe section (211).

6. The air cooler shroud according to claim 1, characterized in that: The automatic controller (226) includes a main control chip (2261), a hydraulic controller (2262), and a hydraulic actuator (2263). The electromagnet (222), the wind speed detection probe (225), and the hydraulic controller (2262) are all electrically connected to the main control chip (2261). The hydraulic controller (2262) is electrically connected to the hydraulic actuator (2263). The output end of the hydraulic actuator (2263) is connected to the spring telescoping device (221).

7. An automatic adjustment method for the air cooler shroud according to any one of claims 1-6, characterized in that, Includes the following steps: Step 1: Select the appropriate size of the air shroud body according to the structure of the air cooler (2); Step 2: Connect the air guide body (2) to the air outlet of the air cooler housing (1) via a flange; Step 3: Start the air cooler and test the effect of increasing the airflow speed at the outlet; Step 4: According to the actual cold storage requirements, the wind speed detection probe (225) detects the wind speed in real time. When the main control chip (2261) receives a wind speed lower than the set value, the main control chip (2261) first controls the opening of the electromagnet (222), and the magnetic fixing bolt (223) is attracted by the magnetic attraction. Then, the input signal is sent to the hydraulic controller (2262), and the hydraulic controller (2262) outputs the thrust to the hydraulic driver (2263). The hydraulic driver (2263) drives the spring telescoping device (221) to work and push the rear guide shroud (23) to the designated position. Then, the main control chip (2261) controls the disconnection of the electromagnet (222). At this time, the magnetic fixing bolt (223) is attracted back into the slot (224), and finally the effect of automatically adjusting the outlet angle of the rear guide shroud (23) is achieved until the air supply performance of the cold air blower meets the requirements of the cold storage. Step 5: When the air cooler is defrosting, the electric heating defrosting module (3) also performs electric heating to remove the frost on the inner surface of the air outlet protective cover (11) at the front end of the air cooler and the frost on the inner surface of the guide cover body (2).

8. The automatic adjustment method for the air cooler shroud according to claim 7, characterized in that: In step four, the hydraulic controller (2262) is set to accept five different signals, which correspond to five different air outlet angles of the rear diffuser (23).

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