Heating and ventilation temperature-adjusting spraying fan

Abstract

The utility model discloses a heating and ventilation temperature-adjusting spraying fan, which relates to the technical field of spraying fans, is used for solving the problems of loud noise, small spraying distance and limited spraying range of the existing temperature-adjusting spraying fan, and comprises a box body, the box body comprises a swinging head mechanism, the top of the swinging head mechanism is provided with an elevation angle mechanism, and the elevation angle mechanism is provided with an elevation angle. The spraying machine head is connected with the elevation mechanism, and the spraying machine head is mounted at the top of the elevation mechanism; the fan blade assembly comprises a hub and five blades evenly arranged around the hub, the hub is tightly connected with the blades, each blade is in a wing shape with the radian difference between the upper surface and the lower surface, a gap is formed between every two adjacent blades, and flow guide components are evenly arranged on the inner wall of the main machine shell. The temperature-adjusting spraying fan can meet the using requirement for spraying at all positions of a site, and the problems that an existing temperature-adjusting spraying fan is large in noise, small in spraying distance and limited in spraying range are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray fans, in particular to a HVAC temperature regulating spray fan Background Art

[0002] The temperature-controlled spray fan is a device that can quickly cool down large outdoor public places when the temperature is high. It is mainly used in scenes or fields such as large outdoor stadiums, concerts, family gatherings, airports, and airport maintenance.

[0003] Current temperature-controlled spray blower technology already has existing devices, such as the authorized utility model patent: A Centrifugal Spray Blower, application / patent number CN 201821930554.1. This utility model discloses a centrifugal spray blower comprising a housing, a motor, impellers, a water tank, and a water pump. The water tank is used to hold water for atomization, and the water pump is used to draw water from the water tank. The impellers include a centrally located blade mounting drum and a plurality of blades mounted on the impeller mounting drum. The impeller mounting drum is mounted on the rotating shaft of the motor. The impellers are characterized by an annular cavity defined within the impeller mounting drum, with an annular opening formed in the cavity wall. A pipe is provided within the blades, with the water inlet communicating with the annular cavity and the water outlet located at the outer end of the blade. The housing is provided with a circular tube wall positioned around the impeller blade, with a toothed surface structure on the inner surface. The water pump draws water from the water tank and guides it through the water pipe into the annular cavity through the annular opening. This utility model provides more efficient atomization.

[0004] Existing technologies (such as the aforementioned existing patents) can already meet basic application requirements, but still have the following defects:

[0005] 1. Loud noise.

[0006] Most of the spray blowers on the market now are single-layer shell blowers, including the above-mentioned patented solution. This design has low structural strength, poor reliability, and loud noise, which affects the customer experience.

[0007] 2. The spray distance is limited.

[0008] The existing fan spray distance is approximately within 15 meters, which cannot meet the needs of customers more than 20 meters away in large outdoor public places. In addition, the fan has no elevation function, which limits its use in areas with height requirements, such as stadiums, high-rise audiences at concerts, and high-altitude maintenance workers at airports, resulting in the cooling effect not being able to fully cover the area where personnel are located.

[0009] The current temperature-controlled spray fans have defects such as high noise, small spray distance, and limited spray range, which will affect the customer experience in actual applications and need to be improved and resolved.

[0010] Therefore, in view of the shortcomings of the above-mentioned scheme in actual production and implementation, it has been revised and improved. At the same time, in the spirit and concept of seeking excellence, and with the assistance of professional knowledge and experience, as well as after many ingenuity and experiments, a HVAC temperature-controlled spray fan is specially provided to solve the problems of the current temperature-controlled spray fan such as high noise, small spray distance and limited spray range.

[0011] Atomizing disc is a device used to atomize liquid into tiny particles. Its working principle is mainly based on centrifugal force and aerodynamics. Utility Model Content

[0012] The purpose of the utility model is to provide a heating and ventilation temperature-controlled spray fan, which is mainly used in large outdoor stadiums, concerts, family gatherings, airports, airport maintenance and other fields, and provides a new solution for rapid cooling of large outdoor public places when the temperature is high, so as to solve the problems of the current temperature-controlled spray fan with high noise, small spray distance and limited spray range.

[0013] The technical solution of the present utility model is achieved as follows:

[0014] A HVAC temperature-controlled spray blower includes a spray head, a water pump, and a water supply system, and a housing. The housing includes a swing head mechanism, and an elevation mechanism is provided on the top of the swing head mechanism. The spray head is connected to the elevation mechanism and is installed on the top of the elevation mechanism.

[0015] The spray head includes a main body shell, a motor is fixed in the main body shell by a motor bracket, the outer side of the motor bracket is serrated, a fan blade assembly is connected to the motor drive end, an atomizing disk is fixed in the main body shell by a fixing net, and an air inlet end protective net is provided at the air inlet end of the main body shell;

[0016] The fan blade assembly includes a hub and five blades evenly arranged around the hub. The hub and the blades are tightly connected. The blades are airfoil-shaped with different curvatures on the upper and lower surfaces. There are gaps between adjacent blades. The inner wall of the main body housing is evenly provided with flow guide components.

[0017] A placement slot adapted to the spray head is provided in the box.

[0018] As a preferred embodiment, the surface of the blade is smoothed.

[0019] As a preferred embodiment, a support plate for supporting and limiting the swing head mechanism is provided in the box body, and the swing head mechanism includes a rotation drive and a rotatable columnar body at the top of the rotation drive, and the elevation mechanism of the columnar body is provided at the top position of the columnar body.

[0020] As a preferred embodiment, the elevation mechanism includes a connecting base and an adjusting connector, the connecting base is arranged on the top of the swing head mechanism, the adjusting connector is rotatably connected to the connecting base, and a number of adjusting holes are respectively provided on the adjusting connector and the connecting base, and the adjusting connector and the connecting base are connected using the adjusting holes and quick-insert locking pins.

[0021] As a preferred embodiment, the main body housing is arranged in sequence from the air inlet end to the air outlet end as a fan blade assembly, a fixed net and an atomizing disk, and the guide component is arranged on the inner side of the air outlet end.

[0022] As a preferred embodiment, the spray head and the elevation mechanism are detachably connected using a quick clamp.

[0023] It is convenient for quick disassembly and assembly of the spray head.

[0024] This solution consists of a motor, fan blade assembly, main unit housing, atomizing disk, swing head mechanism, elevation mechanism, box body and water pump. It adopts independently designed impeller, guide vane and guide structure. The fan has high efficiency, atomizing disk, fine and stable mist, wide range of air volume and mist volume adjustment, simple operation, easy use and transportation.

[0025] The installation steps are as follows:

[0026] First, as Figure 1 Install the motor bracket and motor on the main unit housing through the connectors. Then, install the atomizer disc on the air outlet protective net. Secure the other end of the air outlet protective net to the main unit housing. Install the fan assembly on the motor shaft. Install the air inlet protective net on the air inlet side. Install the main unit housing on the tilt mechanism. Install the water pump at the bottom of the box and connect the water outlet pipe. Assemble the swing mechanism first, install it on the box support plate, and then secure the tilt mechanism to the swing mechanism. Secure the main unit housing to the tilt mechanism using a quick-release clamp. Connect the water pipes and wires to complete the installation.

[0027] The high efficiency and large air volume of this solution are mainly achieved through the following structural aspects:

[0028] Blade Shape: Airfoil-shaped blades, similar to aircraft wings, feature a curved top and bottom surface. This allows for smoother airflow over the blade surface, minimizing separation and turbulence, thereby reducing energy loss and improving blade efficiency and airflow volume. The backward-tilted blades provide better guidance for airflow as it passes through the blades, increasing axial velocity and, consequently, airflow volume. The backward-tilted blades also minimize impact, reducing noise and vibration during operation and improving blade stability and service life.

[0029] There is a gap between adjacent blades: A certain gap must be maintained between adjacent blades to ensure smooth airflow. Too small a gap can block airflow and increase energy loss; too large a gap can cause airflow to leak between the blades, reducing airflow. Therefore, the appropriate blade spacing must be determined during design based on factors such as blade speed and blade shape.

[0030] Hub-to-blade connection: The hub-to-blade connection must be tight and secure to ensure efficient energy transfer from the hub to the blades. At the same time, the connection should be designed to minimize disruption to the airflow and avoid additional energy loss.

[0031] Blade surface treatment: Smoothing the blade surface can reduce the roughness of the blade surface, reduce the friction resistance between the airflow and the blade surface, and improve the efficiency and air volume of the blade.

[0032] Adding a guide structure: Adding a guide structure around the main body shell can guide the flow direction of the airflow, so that the airflow flows more concentratedly to the effective area of ​​the blades, thereby improving the air supply effect of the blades.

[0033] The noise reduction design of this solution is integrated into the motor bracket, which is reflected in the zigzag arrangement of the bracket end. The zigzag arrangement design changes the sound wave propagation path, can interfere with the sound wave phase, and increase the sound absorption area, thereby effectively reducing noise.

[0034] The working process, principle and design parameters of this solution:

[0035] A. When the spray blower is started, the motor that opens the blades first drives the fan assembly to rotate. The fan assembly is controlled by the motor 0V-10V, and the maximum speed can reach 1450r / min.

[0036] B. The second step is to turn on the atomizing disk and the water pump in the box to pump the water in the box into the atomizing disk. The high-speed rotation of the atomizing disk will throw the water out and convert it into mist. The high-speed air volume generated by the fan blade assembly will then send the mist to a distance of 20m or even farther.

[0037] C. During operation, the main unit housing can be driven to rotate by the swing head mechanism, which can swing back and forth 90 degrees in the horizontal direction, which can greatly increase the cooling range.

[0038] D. During the operation of the spray blower, the main body shell can be adjusted to adjust the elevation angle from -1 degree to 27 degrees by adjusting the elevation mechanism, thereby greatly improving the demand for use in environments at different heights, such as high-rise stands in large stadiums, airport roof maintenance, etc.

[0039] E. When the operation is finished, drain the water in the box, then turn off the water pump, atomizing disk, swing head mechanism, and motor power in sequence, then remove the main unit shell and put it into the box for easy transportation and saving transportation space.

[0040] The beneficial effects of the utility model are:

[0041] The utility model has a long spray distance, a wide range, and low noise, can meet the use requirements of spraying at various positions of the site, improves the user experience, and solves the problems of the existing temperature-controlled spray fan with high noise, short spray distance, and limited spray range.

[0042] Specifically:

[0043] The utility model can rotate the spray in the horizontal direction, and can also adjust the angle in the vertical direction using the elevation mechanism, so the spraying flexibility is very high, the applicability is good, the spraying range is wide, and it can meet the use needs of spraying at various positions of personnel;

[0044] The design of blades and guide structures increases the spray distance, and the spray direction can be flexibly adjusted. It has good applicability and strong spraying ability. The serrated arrangement changes the sound wave propagation path to reduce noise and improve comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0046] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model;

[0047] Figure 2 This is a side view of the embodiment of the utility model Figure 1 ;

[0048] Figure 3 This is a side view of the embodiment of the utility model Figure 2 ;

[0049] Figure 4 for Figure 2 Schematic diagram of the internal structure;

[0050] Figure 5 for Figure 2 A magnified schematic diagram of point A in the middle;

[0051] Figure 6 For the implementation of the utility model Figure 1 ;

[0052] Figure 7 For the implementation of the utility model Figure 2 ;

[0053] Figure 8 It is a side view of the utility model in the storage state.

[0054] In the figure, 1-spray head; 2-box; 3-fixing net; 4-motor; 5-motor bracket; 6-fan blade assembly; 7-air inlet end protective net; 8-elevation mechanism; 9-support plate; 10-swing head mechanism; 11-electrical control component; 12-water pump; 14-main unit housing; 15-atomizing disc; 16-flow guide component; 17-placement slot; 18-adjustment connector; 19-adjustment hole; 20-quick-insert locking pin; 21-connection base. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0056] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0057] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of these features.

[0058] In the description of the embodiments, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections, connections through an intermediary medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on their specific circumstances.

[0059] like Figures 1 to 8As shown, a HVAC temperature-controlled spray blower includes a spray head 1, a water pump 12, and a water supply system, including a housing 2. The housing 2 includes a swing mechanism 10. An elevation mechanism 8 is provided on the top of the swing mechanism 10. The spray head 1 is connected to the elevation mechanism 8 and is installed on the top of the elevation mechanism 8.

[0060] The spray head 1 includes a main body housing 14, in which a motor 4 is fixed by a motor bracket 5. The outer side of the motor bracket 5 is serrated. The driving end of the motor 4 is connected to a fan blade assembly 6. The main body housing 14 is fixed with an atomizing disk 15 by a fixing net 3. The air inlet end of the main body housing 14 is provided with an air inlet end protective net 7.

[0061] The fan blade assembly 6 includes a hub and five blades evenly arranged around the hub. The hub and the blades are tightly connected. The blades are airfoil-shaped with different curvatures on the upper and lower surfaces. There are gaps between adjacent blades. The inner wall of the main body housing 14 is evenly provided with guide components 16.

[0062] A placement slot 17 adapted to the spray head 1 is provided in the box body 2 .

[0063] The surface of the blade is smoothed.

[0064] A support plate 9 for supporting and limiting the swing head mechanism is provided in the box body 2. The swing head mechanism includes a rotary drive and a columnar body with a rotatable top of the rotary drive. The elevation mechanism 8 of the columnar body is provided at the top position of the columnar body.

[0065] The elevation mechanism 8 includes a connecting base 21 and an adjusting connector 18. The connecting base 21 is arranged on the top of the swing head mechanism 10. The adjusting connector 18 is rotatably connected to the connecting base 21. A plurality of adjusting holes 19 are respectively provided on the adjusting connector 18 and the connecting base 21. The adjusting connector 18 and the connecting base 21 are connected to each other via the adjusting holes 19 and the quick-insert locking pin 20.

[0066] The fan blade assembly 6, the fixed net 3 and the atomizing disk 15 are arranged in sequence from the air inlet end to the air outlet end in the main body housing 14, and the guide component 16 is arranged on the inner side of the air outlet end.

[0067] The spray head 1 and the elevation mechanism 8 are detachably connected by a quick-insert locking pin 20 .

[0068] It is convenient to quickly disassemble and assemble the spray head 1.

[0069] This solution consists of a motor 4, a fan blade assembly 6, a main unit housing 14, an atomizing disk 15, a swing head mechanism 10, an elevation mechanism 8, a box 2 and a water pump 12. It adopts independently designed fan blade components and a guide structure, has high fan efficiency, an atomizing disk 15, fine and stable mist, a wide range of air volume and mist volume adjustment, simple operation, and convenient use and transportation.

[0070] The electrical control components 11 and water pump 12 of the spray blower are already mature technologies. For their specific locations, please refer to the attached Figure 4 .

[0071] The installation steps are as follows:

[0072] First, as Figure 1 Install the motor bracket 5 and motor 4 on the main housing 14 through the connectors. Then install the atomizer disc 15 on the air outlet protective net. The other end of the air outlet protective net is fixed to the main housing 14. Install the fan assembly 6 on the shaft head of the motor 4. Install the air inlet protective net 7 on the air inlet side. Install the main housing on the elevation mechanism 8. The main housing 14 is installed. Then install the water pump 12 at the bottom of the box 2 and connect the water outlet pipe. Assemble the swing mechanism first, install it on the support plate 9 of the box 2, and then fix the elevation mechanism 8 to the swing mechanism of the box 2. Then fix the main housing 14 to the elevation mechanism 8 with a quick clamp. Connect the water pipe and wires to complete the entire installation.

[0073] The high efficiency and large air volume of this solution are mainly achieved through the following structural aspects:

[0074] Blade Shape: Airfoil-shaped blades, similar to aircraft wings, feature a curved top and bottom surface. This allows for smoother airflow over the blade surface, minimizing separation and turbulence, thereby reducing energy loss and improving blade efficiency and airflow volume. The backward-tilted blades provide better guidance for airflow as it passes through the blades, increasing axial velocity and, consequently, airflow volume. The backward-tilted blades also minimize impact, reducing noise and vibration during operation and improving blade stability and service life.

[0075] There is a gap between adjacent blades: A certain gap must be maintained between adjacent blades to ensure smooth airflow. Too small a gap can block airflow and increase energy loss; too large a gap can cause airflow to leak between the blades, reducing airflow. Therefore, the appropriate blade spacing must be determined during design based on factors such as blade speed and blade shape.

[0076] Hub-to-blade connection: The hub-to-blade connection must be tight and secure to ensure efficient energy transfer from the hub to the blades. At the same time, the connection should be designed to minimize disruption to the airflow and avoid additional energy loss.

[0077] Blade surface treatment: Smoothing the blade surface can reduce the roughness of the blade surface, reduce the friction resistance between the airflow and the blade surface, and improve the efficiency and air volume of the blade.

[0078] Adding a guide structure: Adding a guide structure around the main body shell can guide the flow direction of the airflow, so that the airflow flows more concentratedly to the effective area of ​​the blades, thereby improving the air supply effect of the blades.

[0079] Selection and impact of other components:

[0080] The number of blades used is five: The number of blades should be determined based on the specific application scenario and design requirements. Generally, more blades can increase the number of times the airflow is cut and pushed, thereby increasing air volume, but this also increases air resistance and blade weight, leading to increased energy consumption. Fewer blades reduce air resistance, but may not fully utilize the rotational energy to generate sufficient air volume. In practice, five blades are more suitable and maximize air volume.

[0081] Select the hub size based on your needs: The hub connects the blades to the motor 4, and its size and shape affect the blade's performance. A larger hub provides more stable support for the blades, reducing deformation and vibration during rotation. A well-shaped hub ensures smoother airflow around the hub, improving blade efficiency.

[0082] The noise reduction design of this solution is integrated on the motor bracket 5, which is reflected in the zigzag arrangement of the bracket end. The zigzag arrangement design changes the sound wave propagation path, can interfere with the sound wave phase, and increases the sound absorption area, thereby effectively reducing noise.

[0083] In terms of expanding the spray range, this solution can flexibly swing the head, including elevation function and head swing function.

[0084] Elevation function: Figure 2 After the spray is turned on, it will run normally in the horizontal direction. After adjusting the elevation angle, Figure 3 It can spray and supply air in the height direction, with a maximum elevation angle of 27 degrees, which can greatly increase the effective cooling area due to the height difference.

[0085] Swing head function: see Figure 6 、 Figure 7 , it swings to the left at a maximum angle of 45 degrees, and to the right at a maximum angle of 45 degrees, thereby achieving a 90-degree swing back and forth, which can greatly increase the effective cooling area on the plane.

[0086] Storage function, please refer to Figure 8 , the spray head 1 can be removed and placed in the box 2.

[0087] The working process, principle and design parameters of this solution:

[0088] A. When the spray blower is started, the motor 4 of the blade is first opened to drive the fan assembly 6 to rotate. The fan assembly 6 is controlled by the motor 0V-10V, and the maximum speed can reach 1450r / min.

[0089] B. The second step is to turn on the atomizing disk 15 and the water pump 12 in the box 2 to pump the water in the box 2 into the atomizing disk 15. The high-speed rotation of the atomizing disk 15 throws the water out and converts it into mist. The high-speed air volume generated by the fan blade assembly 6 then sends the mist to a distance of 20m or even farther.

[0090] C. During operation, the main body housing 14 can be driven to rotate by the swing mechanism 10, and it can swing back and forth with an amplitude of 90 degrees in the horizontal direction, which can greatly increase the cooling range.

[0091] D. During the operation of the spray blower, the main body housing 14 can be adjusted up and down by adjusting the elevation mechanism 8, ranging from -1 degree to 27 degrees, thereby greatly improving the demand for use in environments at different heights, such as high-rise stands in large stadiums, airport roof maintenance, etc.

[0092] E. When the operation is finished, drain the water in the box 2, then turn off the power of the water pump 12, the atomizing disk 15, the swing head mechanism 10, and the motor 4 in sequence, then remove the main unit housing 14 and put it into the box 2 for easy transportation and saving transportation space.

[0093] The beneficial effects of the utility model are:

[0094] The utility model has a long spray distance, a wide range, and low noise, can meet the use requirements of spraying at various positions of the site, improves the user experience, and solves the problems of the existing temperature-controlled spray fan with high noise, short spray distance, and limited spray range.

[0095] Specifically:

[0096] The utility model can rotate the spray in the horizontal direction, and can also adjust the angle in the vertical direction using the elevation mechanism, so the spraying flexibility is very high, the applicability is good, the spraying range is wide, and it can meet the use needs of spraying at various positions of personnel;

[0097] The design of blades and guide structures increases the spray distance, and the spray direction can be flexibly adjusted. It has good applicability and strong spraying ability. The serrated arrangement changes the sound wave propagation path to reduce noise and improve comfort.

[0098] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. In addition, the technical solutions of the various embodiments may be combined with each other, but this must be based on the fact that they can be implemented by a person of ordinary skill in the art. If the combination of technical solutions is inconsistent or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A HVAC temperature-controlled spray blower, comprising a spray head, a water pump and a water supply system, characterized in that: The box includes a swing head mechanism, the top of the swing head mechanism is provided with an elevation mechanism, the spray head is connected to the elevation mechanism, and the spray head is installed on the top of the elevation mechanism; The spray head includes a main body shell, a motor is fixed in the main body shell by a motor bracket, the outer side of the motor bracket is serrated, a fan blade assembly is connected to the motor drive end, an atomizing disk is fixed in the main body shell by a fixing net, and an air inlet end protective net is provided at the air inlet end of the main body shell; The fan blade assembly includes a hub and five blades evenly arranged around the hub. The hub and the blades are tightly connected. The blades are airfoil-shaped with different curvatures on the upper and lower surfaces. There are gaps between adjacent blades. The inner wall of the main body housing is evenly provided with flow guide components. A placement slot adapted to the spray head is provided in the box.

2. The HVAC temperature-controlled spray blower according to claim 1, characterized in that: The surface of the blade is smoothed.

3. The HVAC temperature-controlled spray blower according to claim 1, characterized in that: A support plate for supporting and limiting the swing head mechanism is provided in the box body. The swing head mechanism includes a rotation drive and a columnar body with a rotatable top of the rotation drive. The elevation mechanism of the columnar body is provided at the top position of the columnar body.

4. The HVAC temperature-controlled spray blower according to claim 1, characterized in that: The elevation mechanism includes a connecting base and an adjusting connecting piece. The connecting base is arranged on the top of the swing head mechanism. The adjusting connecting piece is rotatably connected to the connecting base. The adjusting connecting piece and the connecting base are each provided with a plurality of adjusting holes. The adjusting connecting piece and the connecting base are connected using the adjusting holes and the quick-insert locking pins.

5. The HVAC temperature-controlled spray blower according to claim 1, characterized in that: The main body shell is arranged in sequence from the air inlet end to the air outlet end as a fan blade assembly, a fixed net and an atomizing disk, and the guide component is arranged on the inner side of the air outlet end.

6. The HVAC temperature-controlled spray blower according to claim 1, characterized in that: The spray head and the elevation mechanism are detachably connected using a quick clamp.

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