Air source unit heating device

Abstract

The utility model discloses an air source unit heat supply device, including the shell, the lateral wall upper end fixed coupling of shell has the controller, the top fixed coupling of shell has the fan, the below of fan is provided with the heating plate, the inner wall bottom of shell is fixed with the water tank through the support column, the inner wall communication of water tank has the heat exchange pipe, the inner wall bottom of shell is fixed with the motor through the motor base, the output fixed coupling of motor has the first bevel gear, and the above meshing of first bevel gear is connected with second bevel gear. The utility model relates to heat supply equipment technical field, and this air source unit heat supply device, through the cooperation between motor, first bevel gear, second bevel gear, pivot, paddle and fairing, realize the cold water in the water tank inside stirring, solved because the cold water in the water tank inside is stationary in the heating early stage, leads to the uneven heating of cold water, leads to the long heating time, thereby reduced the problem of heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, specifically to an air source unit heating device. Background Technology

[0002] An air source heat pump unit is an energy-saving device that uses high-grade energy to transfer heat from a low-grade heat source, air, to a high-grade heat source.

[0003] In traditional air source heat pump units, outside air is drawn into the heating chamber by a fan and heated by heating plates. The hot air then flows into the heat exchange tubes in the water tank to heat the cold water inside the water tank 11. Finally, the hot water is discharged through a circulating pump to heat the room. However, when hot air heats the cold water inside the water tank 11, the cold water inside the tank is stationary in the early stage of heating. This causes the cold water near the heat exchange tube to heat up quickly, while the cold water far away from the heat exchange tube heats up slowly. This results in uneven heating and a longer heating time for the cold water, thereby reducing the heat exchange efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an air source unit heating device that solves the problem that uneven heating of cold water in the water tank during the initial heating phase leads to prolonged heating time and reduced heat exchange efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air source heat pump unit heating device includes a housing, a controller fixedly connected to the upper side wall of the housing, a fan fixedly connected to the top of the housing, a heating plate disposed below the fan, a water tank fixedly connected to the bottom of the inner wall of the housing via a support column, a heat exchange tube connected to the inner wall of the water tank, a motor fixedly connected to the bottom of the inner wall of the housing via a motor mount, a first bevel gear fixedly connected to the output end of the motor, a second bevel gear meshing above the first bevel gear, a rotating shaft fixedly connected to the top of the second bevel gear, the outer wall of the rotating shaft rotatably connected to the lower inner wall of the water tank via a sealed bearing, a blade fixedly connected to the top of the rotating shaft, and a flow guide fixedly connected to the bottom of the inner wall of the water tank.

[0006] Preferably, the bottom of the fan is connected to an air inlet pipe, the bottom of the air inlet pipe is connected to a cover plate, the bottom of the cover plate is fixedly connected to a heating box, the heating plate is fixedly connected to the inner wall of the heating box, and the bottom of the heating box is fixedly connected to a support plate by bolts, the support plate is fixedly connected to the inner wall of the outer shell.

[0007] Preferably, a connecting pipe is connected to the lower part of the heating box, the lower part of the connecting pipe is connected to the beginning of the heat exchange tube, the heat exchange tube extends to the inner wall of the water tank, the end of the heat exchange tube is connected to the inner wall of the outer shell, and the end of the heat exchange tube extends to the outer wall of the outer shell.

[0008] Preferably, the upper sides of the water tank are respectively connected to a first water pipe and a second water pipe, and the ends of the first water pipe and the second water pipe extend to the outside of the outer shell.

[0009] Preferably, a temperature sensor is bolted to the bottom of the water tank on the side away from the motor.

[0010] Preferably, a shell plate is fixed to the front side of the outer shell.

[0011] Preferably, a vertical groove is provided on the upper part of the inner wall of the heating box, a locking block is inserted into the inner wall of the vertical groove, a frame is fixed to the side wall of the locking block, the outer wall of the frame is attached to the upper part of the inner wall of the heating box, and a perforated plate is fixed to the inner wall of the frame. Beneficial effects

[0012] This utility model provides an air source heat pump unit heating device. It has the following advantages: This air source heat pump unit heating device, through the cooperation of a motor, a first bevel gear, a second bevel gear, a rotating shaft, blades, and a guide vane, achieves agitation of the cold water inside the water tank. This solves the problem that because the cold water inside the tank is stagnant in the early stages of heating, the heating of the cold water is uneven, resulting in prolonged heating time and reduced heat exchange efficiency.

[0013] By coordinating the vertical slots, locking blocks, frame, and perforated plate, the air residence time is increased, improving the heat exchange efficiency between the air and the heating plate. This solves the problem that air often passes directly through the heating box after entering, resulting in a very short contact time with the heating plate, which leads to uneven heating and energy waste. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 An exterior schematic diagram; Figure 3 for Figure 1 A schematic diagram of the structure of the motor, water tank, and blades; Figure 4 for Figure 1 A schematic diagram of the central air intake pipe, cover plate, and heating chamber; Figure 5 for Figure 4 A schematic diagram of the structure of the card block, frame, and perforated plate.

[0015] In the diagram: 1. Outer shell; 2. Shell plate; 3. Fan; 4. Inlet pipe; 5. Cover plate; 6. Heating box; 7. Heating plate; 8. Connecting pipe; 9. Heat exchange pipe; 10. Support plate; 11. Water tank; 12. First water pipe; 13. Second water pipe; 14. Controller; 15. Temperature sensor; 16. Motor; 17. First bevel gear; 18. Shaft; 19. Blade; 20. Draft shield; 21. Vertical groove; 22. Locking block; 23. Frame; 24. Perforated plate; 25. Second bevel gear. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Because the cold water inside the tank is stagnant during the initial heating phase, the water is heated unevenly, resulting in a longer heating time and reduced heat exchange efficiency.

[0018] In view of this, the present invention provides an air source unit heating device, which, through the cooperation of a motor, a first bevel gear, a second bevel gear, a rotating shaft, a blade, and a guide shroud, achieves the stirring of cold water inside the water tank, thus solving the problem that the cold water inside the water tank is stationary in the early stage of heating, resulting in uneven heating of the cold water, a long heating time, and reduced heat exchange efficiency.

[0019] Those skilled in the art will connect the electrical components and their compatible power supplies in this case using wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle below, where the electrical components are connected in the order of operation. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without further explanation of electrical control.

[0020] Example 1, by Figure 1-5As can be seen, the air source unit heating device in this case includes a shell 1, a controller 14 fixedly connected to the upper side wall of the shell 1, a fan 3 fixedly connected to the top of the shell 1, a heating plate 7 arranged below the fan 3, a water tank 11 fixedly connected to the bottom of the inner wall of the shell 1 via a support column, a heat exchange pipe 9 connected to the inner wall of the water tank 11, a motor 16 fixedly connected to the bottom of the inner wall of the shell 1 via a motor base, a first bevel gear 17 fixedly connected to the output end of the motor 16, a second bevel gear 25 meshing with the top of the first bevel gear 17, a rotating shaft 18 fixedly connected to the top of the second bevel gear 25, the outer wall of the rotating shaft 18 being rotatably connected to the lower inner wall of the water tank 11 via a sealed bearing, a blade 19 fixedly connected to the top of the rotating shaft 18, and a guide shroud 20 fixedly connected to the bottom of the inner wall of the water tank 11. In the specific implementation process, it is worth noting that the model of fan 3 is GR28D-4EK.3I.V7 The centrifugal fan (model 3) is connected to the controller (model 14) via a relay. The controller (model 14) outputs a low-voltage signal to control the relay's on / off state, thereby controlling the high-voltage circuit of the fan (model 3). When the controller (model 14) issues a start command for the fan (model 3), the relay coil is energized, the normally open contact closes, and the fan (model 3) starts working. When the controller (model 14) issues a stop command, the relay coil is de-energized, the normally open contact opens, and the fan (model 3) stops working. Additionally, a current sensor can be installed in the circuit of the fan (model 3) to feed back the fan's operating current signal to the controller (model 14), allowing the controller (model 14) to monitor the fan's operating status in real time and take timely protective measures in case of overload or other abnormalities. The controller (model 14) is an S7-200SMARTPLC, and the heating plate (model 7) is a YPTH-2000. The heating plate (model 7) is connected to the controller (model 14) via a thyristor voltage regulator. The controller (model 14) outputs 0-10V or 4V. A 20mA analog signal is sent to the control terminal of the SCR voltage regulator. The SCR voltage regulator adjusts the voltage output to the heating plate 7 based on the received signal magnitude, thereby regulating the power of the heating plate 7. For example, when the water temperature in the water tank 11 is low, the controller 14 outputs a larger analog signal, and the SCR voltage regulator outputs a higher voltage, causing the heating plate 7 to operate at higher power and quickly raise the air temperature. When the water temperature approaches the set value, the controller 14 outputs a smaller analog signal, and the SCR voltage regulator reduces the output voltage, allowing the heating plate 7 to maintain the air temperature at lower power. Furthermore, the circuit of the heating plate 7 also includes... A temperature fuse and thermal relay are installed to provide overheat and overload protection for the heating plate 7. When the temperature of the heating plate 7 is too high or the current is too large, the power supply can be automatically cut off to ensure equipment safety. The motor 16 is model ECMA-C20604RS. The connection between the motor 16 and the controller 14 is as follows: the controller 14 outputs pulse signals and direction signals to the servo driver. The servo driver precisely controls the speed, direction, and torque of the motor 16 based on the received signals. The servo driver converts the received pulse signals into the rotation angle of the motor 16, and the direction signal determines the rotation direction of the motor 16. Furthermore, the servo driver also feeds back the operating status information of the motor 16, such as speed, current, and temperature, to the controller 14 through a communication interface (such as RS485 or Ethernet), so that the controller 14 can monitor the operating status of the motor 16 in real time and achieve closed-loop control. The controller 14 can be connected to the housing 1 by bolts. The operator can disassemble and repair the controller 14 by turning the bolts. The propeller 19 is made of high-strength engineering plastic (such as POM) and is integrally injection molded. It has the characteristics of being lightweight, corrosion-resistant and high-strength. The fairing 20 is flared and is made of stainless steel sheet with a thickness of 2-3mm. The upper diameter of the fairing 20 is slightly larger than the diameter of the propeller. When the device is in use, the operator starts the fan 3 and the heating plate 7 through the controller 14. The fan 3 draws outside air through the heating plate 7, which heats the air. The hot air exchanges heat with the cold water inside the water tank 11 through the heat exchange pipe 9, thus heating the cold water inside the water tank 11. In the initial heating stage, the operator starts the motor 16 through the controller 14. The motor 16 drives the first bevel gear 17 to rotate, which in turn drives the second bevel gear 25 to rotate. The second bevel gear 25 drives the rotating shaft 18 to rotate, which in turn drives the blades 19 to rotate, forming a strong axial thrust that pushes the low-temperature water at the bottom of the water tank 11 upward. The function of the flow guide shroud 20 is to converge the dispersed water flow generated by the blades 19 into a stable axial water flow, enhancing the pushing effect of the water flow, while reducing the radial diffusion of the water flow and improving the concentration and efficiency of the water flow disturbance. When the cold water inside the water tank 11 is heated to the predetermined value, the controller 14 stops the motor 16 from working, thus realizing the stirring of the cold water inside the water tank 11. Furthermore, the bottom of the fan 3 is connected to an air inlet pipe 4, the bottom of the air inlet pipe 4 is connected to a cover plate 5, the bottom of the cover plate 5 is fixedly connected to a heating box 6, the heating plate 7 is fixedly connected to the inner wall of the heating box 6, and the bottom of the heating box 6 is fixedly connected to a support plate 10 by bolts, and the support plate 10 is fixedly connected to the inner wall of the outer shell 1. In the specific implementation process, it is worth noting that the outer wall of the air intake pipe 4 is connected to a solenoid valve via a flange. The model of the solenoid valve is selected according to the actual situation, as long as it meets the working conditions. The heating plate 7 can be connected to the heating box 6 via bolts. The operator can disassemble and install the heating plate 7 by rotating the corresponding bolts, thereby performing maintenance and replacement. The cover plate 5 can be connected to the heating box 6 via bolts. The operator can disassemble and install the cover plate 5 by rotating the bolts on the cover plate 5, thereby installing and replacing the parts inside the heating box 6. The cover plate 5 is a sealing plate. The support plate 10 supports the heating box 6. The controller 14 activates the valve on the air intake pipe 4 to open the air intake pipe 4. The fan 3 draws external air into the interior of the heating box 6 through the air intake pipe 4 to heat the air. When the operation stops, the controller 14 activates the corresponding solenoid valve to close the air intake pipe 4. Furthermore, a connecting pipe 8 is connected to the lower part of the heating box 6, the lower part of the connecting pipe 8 is connected to the beginning of the heat exchange pipe 9, the heat exchange pipe 9 extends to the inner wall of the water tank 11, the end of the heat exchange pipe 9 is connected to the inner wall of the outer shell 1, and the end of the heat exchange pipe 9 extends to the outer wall of the outer shell 1. In the specific implementation process, it is worth noting that hot air enters the heat exchange tube 9 through the connecting pipe 8 to exchange heat with the cold water inside the water tank 11. Furthermore, the upper sides of the water tank 11 are respectively connected to a first water pipe 12 and a second water pipe 13, and the ends of the first water pipe 12 and the second water pipe 13 extend to the outside of the outer shell 1. In the specific implementation process, it is worth noting that the outer walls of the first water pipe 12 and the second water pipe 13 are respectively connected to solenoid valves via flanges, and the outer wall of the second water pipe 13 is connected to a circulation pump via bolts. The models of the solenoid valves and circulation pumps are selected according to the actual situation to meet the work adjustment requirements. Among them, the staff can fill water into the water tank 11 through the first water pipe 12. The first water pipe 12 is connected to a three-way pipe, one end of which is connected to the external water injection pipe, and the other end is connected to the external heating pipe. The end of the second water pipe 13 is connected to the external heating pipe. When the cold water inside the water tank 11 is heated to a predetermined value, the controller 14 activates the solenoid valves of the first water pipe 12 and the second water pipe 13, starts the circulation pump, and transports the hot water inside the water tank 11 to the external heating pipe through the second water pipe 13 to heat the room. The cooled water flows back into the water tank 11 through the first water pipe 12 to continue heating it. Furthermore, a temperature sensor 15 is bolted to the bottom of the water tank 11 on the side away from the motor 16. In the specific implementation process, it is worth noting that the temperature sensor 15 is model DS18B20. The digital temperature sensor 15 is connected to the controller 14 using a unique single-bus communication protocol. When communicating with the controller 14, the controller 14 accesses the temperature sensor 15 by sending a specific sequence of instructions. The controller 14 needs to send a reset pulse. After the temperature sensor 15 responds, the controller 14 sends ROM instructions and function instructions to read the temperature data measured by the temperature sensor 15. The controller 14 needs to write a corresponding driver program to parse the single-bus communication protocol and read the data. In this way, the controller 14 can obtain the water temperature data in the water tank measured by the temperature sensor 15 in real time and perform corresponding control operations based on this data, thereby achieving precise control of the water temperature in the water tank 11. The probe of the temperature sensor 15 extends into the interior of the water tank 11. A sealing ring can be installed between the probe and the water tank 11. The material of the sealing ring is selected according to the actual situation to meet the working conditions, thereby improving the sealing performance between the two. The temperature sensor 15 monitors the water temperature inside the water tank 11, and when the water temperature reaches a predetermined value, it starts the heating operation. Furthermore, a shell plate 2 is fixedly attached to the front of the outer shell 1; In the specific implementation process, it is worth noting that the shell plate 2 can be connected to the outer shell 1 by bolts. The staff can rotate the bolts to disassemble and reassemble the shell plate 2, thereby inspecting and repairing the internal mechanical parts of the outer shell 1.

[0021] Example 2, by Figure 1-5 It can be seen that a vertical groove 21 is provided on the upper part of the inner wall of the heating box 6, a locking block 22 is inserted into the inner wall of the vertical groove 21, a frame 23 is fixed to the side wall of the locking block 22, the outer wall of the frame 23 is attached to the upper part of the inner wall of the heating box 6, and a perforated plate 24 is fixed to the inner wall of the frame 23. In the specific implementation process, it is worth noting that the perforated plate 24 is made of stainless steel plate with a thickness of 2-3mm, and is stamped to produce a uniform hole diameter (such as 5-10mm). When the device is in operation, the operator first removes the shell plate 2, rotates the bolts on the support plate 10 to remove the heating box 6, and then removes the cover plate 5. The operator moves the frame 23, which moves the locking block 22. The locking block 22 is inserted into the vertical groove 21, and the perforated plate 24 is placed inside the heating box 6. After that, the operator rotates the bolts on the frame 23 to fix it. After that, the operator fixes the heating box 6 back to the corresponding position on the shell 1. When air enters the interior of the heating box 6, the air is blocked by the perforated plate 24, thereby changing the air flow path in the heating box 6, increasing the air residence time, and improving the heat exchange efficiency between the air and the heating plate 7.

[0022] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air source unit heating device comprising a housing (1), characterised in that: A controller (14) is fixedly connected to the upper side wall of the outer shell (1). A fan (3) is fixedly connected to the top of the outer shell (1). A heating plate (7) is provided below the fan (3). A water tank (11) is fixedly connected to the bottom of the inner wall of the outer shell (1) through a support column. A heat exchange tube (9) is connected to the inner wall of the water tank (11). A motor (16) is fixedly connected to the bottom of the inner wall of the outer shell (1) through a motor seat. A first bevel gear (17) is fixedly connected to the output end of the motor (16). A second bevel gear (25) is meshed above the first bevel gear (17). A rotating shaft (18) is fixedly connected to the top of the second bevel gear (25). The outer wall of the rotating shaft (18) is rotatably connected to the bottom of the inner wall of the water tank (11) through a sealed bearing. A blade (19) is fixedly connected to the top of the rotating shaft (18). A guide shroud (20) is fixedly connected to the bottom of the inner wall of the water tank (11).

2. An air source unit heating device as claimed in claim 1, wherein: The bottom of the fan (3) is connected to an air inlet pipe (4), the bottom of the air inlet pipe (4) is connected to a cover plate (5), the bottom of the cover plate (5) is fixed to a heating box (6), the heating plate (7) is fixed to the inner wall of the heating box (6), the bottom of the heating box (6) is fixed to a support plate (10) by bolts, and the support plate (10) is fixed to the inner wall of the outer shell (1).

3. An air source unit heating device as claimed in claim 2, wherein: The heating box (6) is connected to a connecting pipe (8) at the bottom. The connecting pipe (8) is connected to the beginning of a heat exchange pipe (9) at the bottom. The heat exchange pipe (9) extends to the inner wall of the water tank (11). The end of the heat exchange pipe (9) is connected to the inner wall of the outer shell (1). The end of the heat exchange pipe (9) extends to the outer wall of the outer shell (1).

4. An air source unit heating device as claimed in claim 1, wherein: The water tank (11) is connected to a first water pipe (12) and a second water pipe (13) on its upper sides respectively. The ends of the first water pipe (12) and the second water pipe (13) extend to the outside of the outer shell (1) respectively.

5. An air source unit heating device as claimed in claim 1, wherein: A temperature sensor (15) is bolted to the bottom of the water tank (11) on the side away from the motor (16).

6. The air source heat pump unit heating device according to claim 1, characterized in that: The shell plate (2) is fixed to the front of the outer shell (1).

7. An air source unit heating device as claimed in claim 2, wherein: A vertical groove (21) is provided on the upper part of the inner wall of the heating box (6). A locking block (22) is inserted into the inner wall of the vertical groove (21). A frame (23) is fixed to the side wall of the locking block (22). The outer wall of the frame (23) is attached to the upper part of the inner wall of the heating box (6). A perforated plate (24) is fixed to the inner wall of the frame (23).

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