Air cooler flow guide cover and automatic adjusting method thereof

Abstract

The invention discloses an air cooler flow guide cover and an automatic adjusting method thereof, and relates to the technical field of air coolers. One end of a front flow guide cover is connected to an air outlet of an air cooler shell, a spring expansion piece is fixedly arranged on the front flow guide cover, and the output end of the spring expansion piece is connected with a rear flow guide cover; the spring expansion piece is provided with an electromagnet and a magnetic fixing bolt which are matched with each other, the rear flow guide cover is provided with an inserting groove matched with the magnetic fixing bolt in an inserted mode, the spring expansion piece is further provided with a wind speed detection probe and an automatic controller, and the end of the wind speed detection probe extends into the front flow guide cover. Under the condition that the internal structure of the air cooler is not changed, the flow guide cover body is additionally arranged on the air outlet side of the air cooler, and the flow guide cover body can automatically adjust the air outlet angle and change the air supply performance according to the actual air speed, so that the air supply accessible range and the air supply distance are remarkably increased, and therefore the air distribution in a refrigeration house is improved; the energy consumption of the refrigeration house is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air coolers, and more specifically to an air cooler air guide cover and an automatic adjustment method thereof. Background Art

[0002] The air cooler is a heat-absorbing and cooling device installed in the cold storage. The heat absorbed by the air cooler in the cold storage is discharged to the atmosphere outside the cold storage through the refrigerant circulation, thereby maintaining a relatively stable low-temperature environment in the cold storage.

[0003] In actual engineering applications, the air supply performance of the cold storage air cooler cannot meet the needs of the cold storage. The reasons include: 1. On the outlet side of the axial flow fan of the air 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 air cooler, resulting in an increase in local resistance to air flow. Summary of the invention

[0004] In order to overcome the defects of the prior art, the present invention proposes an air deflector cover for an air cooler and an automatic adjustment method thereof. Without changing the internal structure of the air cooler, an air deflector body is added to the air outlet side of the air cooler, and the air deflector body can automatically adjust the air outlet angle according to the actual wind speed, thereby changing its air supply performance, so that the air supply range and air supply distance are significantly improved, thereby improving the air flow organization distribution in the cold storage and reducing the energy consumption of the cold storage.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The present invention provides an air ductor cover for an air cooler, comprising an air cooler shell and an air ductor body, the air ductor body comprising a front air ductor, an automatic adjustment module and a rear air ductor, one end of the front air ductor is connected to the air outlet of the air cooler shell, the other end of the front air ductor is provided with the automatic adjustment module, the automatic adjustment module comprises a spring expander, an electromagnet, a magnetic fixing bolt, a wind speed detection probe and an automatic controller, the spring expander is fixed on the front air ductor, the output end of the spring expander is connected to the rear air ductor, the spring expander is provided with an electromagnet and a magnetic fixing bolt that cooperate with each other, the rear air ductor is provided with a slot that is plugged and matched with the magnetic fixing bolt, the spring expander 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 air duct, and the spring expander, the electromagnet and the wind speed detection probe are all electrically connected to the automatic controller.

[0007] In a preferred technical solution of the present invention, the front air guide cover includes a first straight pipe section, a transition section and a second straight pipe section which are connected in sequence, the first straight pipe section is connected to the air outlet protection cover on the air cooler casing by a flange, and the spring expander is arranged on the outer wall of the second straight pipe section.

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

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

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

[0011] In a preferred technical solution of the present invention, the automatic controller includes a main control chip, a hydraulic controller and a hydraulic driver, 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 driver, and the output end of the hydraulic driver is connected to the spring expander.

[0012] The present invention also provides a method for automatically adjusting a cooling fan air guide cover, comprising the following steps:

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

[0014] Step 2: Connect the air guide cover body to the air outlet of the air cooler housing through a flange;

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

[0016] Step 4. According to the actual needs of the cold storage, the wind speed detection probe detects the wind speed in real time. When the main control chip receives that the wind speed is lower than the set value, the main control chip first controls the opening of the electromagnet, and sucks up the magnetic fixing bolt through magnetic attraction, and then inputs a signal to the hydraulic controller. The hydraulic controller outputs thrust to the hydraulic driver, and the hydraulic driver drives the spring retractor to work, pushing the rear air guide cover to the specified position, and then the main control chip controls the disconnection of the electromagnet. At this time, the magnetic fixing bolt is re-adsorbed in the slot, and finally the effect of automatically adjusting the outlet angle of the rear air guide cover is achieved, until the air supply performance of the air cooler meets the needs of the cold storage;

[0017] Step 5: When the air cooler is defrosted, the electric heating defrost module is also electrically heated to remove frost on the inner surface of the air outlet protection cover at the front end of the air cooler and the inner surface of the air guide cover body.

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

[0019] The beneficial effects of the present invention are:

[0020] The present invention proposes an air deflector cover for an air cooler and an automatic adjustment method thereof. Without changing the internal structure of the air cooler, an air deflector body is added to the air outlet side of the air cooler. The air deflector body can automatically adjust the air outlet angle according to the actual wind speed, thereby changing its air supply performance, so that the air supply reachable range and air supply distance are significantly improved, thereby improving the air flow organization distribution in the cold storage and reducing the energy consumption of the cold storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an air cooler air guide cover provided by a specific embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the air deflector body;

[0023] Figure 3 yes Figure 2 Right view of;

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

[0025] Figure 5 It is the circuit schematic diagram of the automatic controller.

[0026] In the figure:

[0027] 1. Air cooler housing; 11. Air outlet protection cover; 2. Air deflector body; 21. Front air deflector; 211. First straight pipe section; 212. Transition section; 213. Second straight pipe section; 22. Automatic adjustment module; 221. Spring retractor; 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 driver; 23. Rear air deflector; 3. Electric heating defrost module. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0029] like Figure 1-5As shown, an air ductor for an air cooler is provided in the embodiment, comprising an air cooler housing 1 and an air ductor body 2, the air ductor body 2 comprising a front air ductor 21, an automatic adjustment module 22 and a rear air ductor 23, one end of the front air ductor 21 is connected to the air outlet of the air cooler housing 1, and the other end of the front air ductor 21 is provided with an automatic adjustment module 22, the automatic adjustment module 22 comprises a spring retractor 221, an electromagnet 222, a magnetic fixing bolt 223, a wind speed detection probe 225 and an automatic controller 226, the spring retractor 221 is fixedly arranged on the front air duct 21 The output end of the spring retractor 221 is connected to the rear air guide 23, the spring retractor 221 is provided with an electromagnet 222 and a magnetic fixing bolt 223 that cooperate with each other, the rear air guide 23 is provided with a slot 224 that plugs and cooperates with the magnetic fixing bolt 223, the spring retractor 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 air guide 21, and the spring retractor 221, the electromagnet 222 and the 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 pipe and a refrigerant circulation pipe, and the axial flow fan is arranged at the air outlet of the air cooler housing 1 to blow out the cold air. The air guide cover body 2 is made of aluminum alloy material, and can automatically adjust the direction of airflow blowing and change its air supply performance, so that the air supply range and air supply distance are significantly improved, thereby improving the air flow organization distribution in the cold storage and reducing the energy consumption of the cold storage. Among them, the rear air guide cover 23 is coaxially arranged with the front air guide cover 21 when in a horizontal state, and the inner surfaces of the front air guide cover 21 and the rear air guide cover 23 are coated with a hydrophobic coating, which can effectively suppress the frosting speed on the inside of the air guide cover; more than two automatic adjustment modules 22 are provided, and more than two automatic adjustment modules 22 are evenly arranged circumferentially on the outer wall of the front air guide cover 21.The automatic adjustment module 22 is set to drive the rear air guide cover 23 to rotate to adjust the air supply angle, wherein the spring retractor 221 is a retractable structure, which can drive the rear air guide cover 23 to rotate; the magnetic fixing bolt 223 is set on the shell of the spring retractor 221 near one end of the rear air guide cover 23, and the magnetic fixing bolt 223 can slide up and down, and the electromagnet 222 and the magnetic fixing bolt 223 cooperate with each other to fix the rear air guide cover 23. When the electromagnet 222 is energized, the magnetic fixing bolt 223 can be sucked up, so that the magnetic fixing bolt 223 is separated from the slot 224, and the rear air guide cover 23 can move. On the contrary, when the electromagnet 222 is powered off, the bottom end of the magnetic fixing bolt 223 is inserted into the slot 224, fixing the spring retractor 221 and the rear air guide cover 23 as a whole; the slot 224 is provided with 5 along the busbar direction of the rear air guide cover 23, corresponding to the air outlet angles θ of the rear air guide cover 23 of 18°, 27° and 28°, respectively. The air supply distance of the air cooler in the experimental group was increased by 13.54%, 16.50%, 19.15% respectively when the air outlet angle θ was 18°, 27°, 36°, 45°, and 54°, and in order to illustrate the advantages of the structure described in this embodiment, the air cooler installed with the air deflector described in this embodiment (experimental group) and the air cooler without the air deflector installed (control group) were tested for air supply, and the following data were obtained: when the air outlet angle θ of the experimental group was 18°, 27°, 36°, 45°, and 54°, the air supply distance of the air cooler in the control group was increased by 13.54%, 16.50%, 19.15% respectively , 21.31% and 24.23%, and the air supply accessible range increased by 13.71%, 17.41%, 24.41%, 26.38% and 35.02% respectively, among which, the air supply distance is defined as the distance when the central axial flow wind speed decays to 0.1m / s, and the air supply accessible range is defined as the area covered by the wind speed of 1m / s and above at 20m. At the same time, the air supply performance of the air guide cover of the air cooler under different air volumes was tested, and the air volume of the experimental group was 7500m. 3 / h、7000m 3 / h、6500m 3 / h、5500m 3 / h、5000m 3 / h, the maximum air supply distance of the air cooler in the control group is increased by 24.23%, 28.22%, 25.10%, 21.62% and 24.49% respectively, and the air supply reach is increased by 35.02%, 83.46%, 52.06%, 178.67% and 146.15% respectively. It can be seen from the above test data that the air supply performance of the experimental group is better; the wind speed detection probe 225 is used to detect the wind speed at the air outlet of the front air guide cover 21, and can send the detection data to the automatic controller 226; the automatic controller 226 is used to control the coordinated work of various components. In addition, the spring retractor 221, the electromagnet 222, the magnetic fixing bolt 223 and other parts are all available on the market.

[0030] Specifically, the front air guide 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 protection cover 11 on the air cooler housing 1 through a flange, and the spring retractor 221 is arranged on the outer 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 in the air outlet protection cover 11. The diameter of the large diameter end of the rear air guide 23 should be larger than the diameter of the second straight pipe section 213.

[0031] Specifically, the transition section 212 and the rear air guide 23 are both arc-shaped tapered tubes, and the curved surface radius R1 of the transition section 212 is 0.17-0.26 m, and the curved surface radius R2 of the rear air guide 23 is 0.21-0.3 m. In this embodiment, the curved surface of the transition section 212 is an inner concave curved surface, and the curved surface of the rear air guide 23 is an outer convex curved surface.

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

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

[0034] Specifically, the automatic controller 226 includes a main control chip 2261, a hydraulic controller 2262 and a hydraulic driver 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 driver 2263. The output end of the hydraulic driver 2263 is connected to the spring retractor 221. In this embodiment, the main control chip 2261 can control the electromagnet 222, the wind speed detection probe 225 and the hydraulic controller 2262 to work together. The hydraulic controller 2262 is used to control the hydraulic driver 2263 to work, and the hydraulic driver 2263 can drive the spring retractor 221 to work, thereby causing the rear air guide 23 to rotate.

[0035] This embodiment also provides a method for automatically adjusting a cooling fan air guide cover, comprising the following steps:

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

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

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

[0039] Step 4: According to the actual needs of the cold storage, the wind speed detection probe 225 detects the wind speed in real time. When the main control chip 2261 receives that the wind speed is lower than the set value, the main control chip 2261 first controls the opening of the electromagnet 222, and sucks up the magnetic fixing bolt 223 through the magnetic attraction, and then inputs a signal 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 air guide cover 23. The hydraulic controller 2262 outputs thrust to the hydraulic driver 2263, and the hydraulic driver 2263 drives the spring retractor 221 to work, pushing the rear air guide cover 23 to the specified position, and then the main control chip 2261 controls the disconnection of the electromagnet 222. At this time, the magnetic fixing bolt 223 is re-adsorbed in the slot 224, and finally achieves the effect of automatically adjusting the outlet angle of the rear air guide cover 23, until the air supply performance of the air cooler meets the needs of the cold storage;

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

[0041] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A cooling fan air guide cover, comprising a cooling fan housing (1) and an air guide cover body (2), characterized in that: The air deflector body (2) comprises a front air deflector (21), an automatic adjustment module (22) and a rear air deflector (23); one end of the front air deflector (21) is connected to the air outlet of the air cooler housing (1); the other end of the front air deflector (21) is provided with the automatic adjustment module (22); the automatic adjustment module (22) comprises a spring retractor (221), an electromagnet (222), a magnetic fixing bolt (223), a wind speed detection probe (225) and an automatic controller (226); the spring retractor (221) is fixedly arranged on the front air deflector (21); the output end of the spring retractor (221) is connected to The rear air deflector (23) and the spring retractor (221) are provided with an electromagnet (222) and a magnetic fixing bolt (223) that cooperate with each other, the rear air deflector (23) is provided with a slot (224) that plugs and cooperates with the magnetic fixing bolt (223), the spring retractor (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 air deflector (21), and the spring retractor (221), the electromagnet (222) and the wind speed detection probe (225) are all electrically connected to the automatic controller (226).

2. The air cooler guide cover according to claim 1, characterized in that: The front air guide cover (21) comprises a first straight pipe section (211), a transition section (212) and a second straight pipe section (213) which are connected in sequence; the first straight pipe section (211) is connected to the air outlet protection cover (11) on the air cooler housing (1) via a flange; and the spring expansion joint (221) is arranged on the outer side wall of the second straight pipe section (213).

3. The air cooler guide cover according to claim 2, characterized in that: The transition section (212) and the rear air guide cover (23) are both arc-shaped tapered tubes, and the radius of the curved surface of the transition section (212) is 0.17 to 0.26 m, and the radius of the curved surface of the rear air guide cover (23) is 0.21 to 0.3 m.

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

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

6. The air guide cover of a cooling fan according to claim 1, characterized in that: The automatic controller (226) comprises a main control chip (2261), a hydraulic controller (2262) and a hydraulic driver (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 driver (2263); and the output end of the hydraulic driver (2263) is connected to the spring retractor (221).

7. An automatic adjustment method for a cooling fan air guide cover according to any one of claims 1 to 6, characterized in that: The steps include: Step 1: Select a shroud body (2) of corresponding size according to the structure of the air cooler; Step 2: Connect the air deflector body (2) to the air outlet of the air cooler housing (1) via a flange; Step 3: Start the air cooler to test the effect of increasing the air speed at the air outlet; Step 4: According to the actual demand of the cold storage, the wind speed detection probe (225) detects the wind speed in real time. When the main control chip (2261) receives that the wind speed is 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 sucked up by the magnetic attraction, and then a signal is input to the hydraulic controller (2262). The hydraulic controller (2262) outputs a thrust to the hydraulic driver (2263), and the hydraulic driver (2263) drives the spring retractor (221) to work, pushing the rear air guide cover (23) to a specified position, and then the main control chip (2261) controls the disconnection of the electromagnet (222). At this time, the magnetic fixing bolt (223) is re-adsorbed in the slot (224), and finally the effect of automatically adjusting the outlet angle of the rear air guide cover (23) is achieved, until the air supply performance of the cold air blower meets the demand of the cold storage; Step 5: When the air cooler is defrosted, the electric heating defrost module (3) also performs electric heating to remove frost on the inner surface of the air outlet protection cover (11) at the front end of the air cooler and the inner surface of the air guide cover body (2).

8. The method for automatically adjusting the air guide cover of a cooling fan according to claim 7, characterized in that: In step 4, the hydraulic controller (2262) is set to receive five different signals, which correspond to five different air outlet angles of the rear air deflector (23).

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