Heating fan and temperature control workshop

Abstract

The utility model relates to the technical field of workshop temperature control, in particular to a heating fan and a temperature control workshop, the heating fan comprises a pipe body, an air supply device and a heating device which are coaxially arranged, the air supply device and the heating device are contained in the pipe body, and the heating device is arranged at the air outlet end of the air supply device; the heating device comprises a heating pipe, the heating pipe is connected to the side wall of the pipe body in the radial direction of the pipe body and arranged in an air outlet area of the air supply device in a coiled mode, a heating medium and an electric heating wire are arranged in the heating pipe, and the two ends of the electric heating wire are connected with wiring ends at the two ends of the heating pipe respectively. According to the heating fan, heat is generated by adopting an electric heating oil mode and is transferred through the fan, in the process, heat loss is small, the heat efficiency is high, meanwhile, operation is easy and reliable, and the heating fan can also be suitable for multi-purpose application scenes.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of workshop temperature control, in particular to a heating fan and a temperature-controlled workshop. BACKGROUND

[0002] In order to ensure the normal and efficient operation of the production workshop, the environmental temperature of the workshop needs to be controlled to avoid the change of the environmental temperature with the season and climate, which affects the product precision and forming quality, and leads to unqualified products. The existing workshop environmental temperature control equipment has a complex structure, and is generally steam heating, gas heating, infrared radiation heating, electromagnetic heating and the like. The temperature of the steam heating is related to the steam pressure, especially when the steam supply pressure fluctuates, the temperature will also fluctuate, which cannot guarantee the stability of the heating system. The gas heating releases waste during the heating process, and the operation of the gas heating is relatively complex compared with other heating equipment. When the infrared radiation heating is performed, the infrared radiation heating is affected by various factors and the radiation distance is short, and the infrared radiation heating is not suitable for large-scale heating. Meanwhile, in the existing heating equipment, a heating element such as an electric heating wire is arranged on the outer periphery of the fan. However, the wind generated by the axial flow fan is spiral axial wind, and the heat that can be transferred is limited. In addition, some equipment adopts the electric resistance wire heating mode, but according to the measurement, the heat generated by the electric resistance wire heating is much smaller than the heat generated by the electric heating oil.

[0003] Therefore, there is an urgent need for a heating equipment that can guarantee the heating effect, and is energy-saving, environmentally friendly, flexible and convenient. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a heating fan and a temperature-controlled workshop.

[0005] The embodiments of the application can be implemented by the following technical solutions:

[0006] A heating fan comprises a pipe body, a fan device and a heating device arranged coaxially, the fan device and the heating device are accommodated in the pipe body, and the heating device is arranged at the air outlet end of the fan device.

[0007] The heating device comprises a heating pipe, the heating pipe is connected to the side wall of the pipe body along the radial direction of the pipe body, and is arranged in the air outlet area of the fan device, the heating pipe is provided with a heating medium and an electric heating wire, and the two ends of the electric heating wire are connected to the wiring ends of the two end portions of the heating pipe.

[0008] Further, the number of the heating pipes is plural, the plural heating pipes are arranged in series and arranged along the axial direction of the pipe body.

[0009] Further, the heating device further comprises a first end box and a second end box, the first end box and the second end box are connected to the side wall of the pipe body, the two ends of the plurality of heating pipes respectively pass through the side wall of the pipe body, and are connected in series in the first end box and the second end box and are connected with the power supply through the wiring end.

[0010] Further, the heating pipes are arranged in multiple numbers, the plurality of heating pipes are arranged in parallel, and are arranged in sequence along the axial direction of the pipe body.

[0011] Further, the heating device further comprises a first end box and a second end box, the first end box and the second end box are connected to the side wall of the pipe body, the two ends of the plurality of heating pipes respectively pass through the side wall of the pipe body, and are connected in series in the first end box and the second end box and are connected with the power supply through the wiring end.

[0012] Further, the air supply device is an axial flow fan, the air supply device comprises a mesh cover, a motor, an impeller and a plurality of blades, the mesh cover, the motor and the impeller are coaxially arranged, the motor is arranged between the mesh cover and the impeller, the impeller is installed on the rotating shaft of the motor through a shaft sleeve, and the plurality of blades are fixedly connected to the outer periphery of the impeller.

[0013] Further, the heating medium in the heating pipe is heat conducting oil.

[0014] A temperature control workshop comprises a sensor, a controller and a plurality of groups of the heating fan, the sensor is arranged on the outer wall of the pipe body and is connected with the controller, is used for receiving temperature information, the controller is connected with the sensor and the motor respectively, the sensor feeds back temperature information to the controller, and then the controller controls the operation of the motor.

[0015] The heating fan and the temperature control workshop provided by the embodiment of the application have at least the following beneficial effects:

[0016] 1. In the application, the heating mode of electrically heated oil is combined with the fan, because the heat conducting oil has high heat conduction performance, can rapidly absorb and transfer heat, and has less heat loss, and the fan can accelerate the flow of air and improve the heating efficiency, so that the rapid transfer of heat is finally realized.

[0017] 2. In the heating fan in the application, the temperature of the heat conducting oil in the heating pipe is more uniform and stable than that in the traditional heating mode, and the heating pipe adopts a disc layout mode, which maximizes the length of the heating pipe and increases the surface area thereof, so that heat can be more evenly distributed to the entire working area.

[0018] 3, The temperature-controlled workshop in the application adopts multiple groups of heating fans for temperature control. The heating fan has simple structure and is convenient to disassemble. When in use, the combination arrangement of the equipment can be simplified, the layout adjustment of the workshop is more flexible, and the space occupied by the heating fan is relatively small, so that the space utilization can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure diagram of the heating fan in the application.

[0020] Figure 2 It is an exploded view of the heating fan in the application.

[0021] The reference signs in the figure are: 1-tube body, 2-net cover, 3-motor, 4-fixing frame, 5-impeller, 6-blade, 7-heating pipe, 8-first end box, 9-second end box. DETAILED DESCRIPTION

[0022] Hereinafter, the application will be further described based on the preferred embodiments and with reference to the accompanying drawings.

[0023] In addition, in order to facilitate understanding, various components on the drawing are enlarged (thick) or reduced (thin), but this practice is not intended to limit the protection scope of the application.

[0024] The singular form of the word also includes the plural meaning, and vice versa.

[0025] In the description of the embodiments of the application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the embodiments of the application is used, only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, in the description of the application, in order to distinguish different units, the first, second and the like are used in the specification, but these will not be limited by the order of manufacture, and cannot be understood as indicating or implying relative importance. The name may be different in the detailed description and the claims of the application.

[0026] The words in the specification are used for the purpose of describing the embodiments of the present application, but are not intended to limit the present application. It should also be noted that, unless otherwise explicitly specified and limited, if the terms "arranged", "connected", "linked" appear, they should be interpreted broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be specifically understood.

[0027] The present application provides a heating fan, Figure 1 and Figure 2 respectively show the overall structure diagram and the explosion diagram of the heating fan in the present application, as Figure 1 and Figure 2 shown, a heating fan, comprising a pipe body 1 arranged coaxially, a blower device, a heating device, the blower device and the heating device are housed in the pipe body 1, and the heating device is arranged at the air outlet end of the blower device. In the process of continuous operation of the heating fan, a large amount of heat is generated by the built-in heating device, and then the hot air flow is uniformly diffused and transported to the workshop area by the blower device.

[0028] The heating device comprises a heating pipe 7, which is connected to the side wall of the pipe body 1 along the radial direction of the pipe body 1 and is arranged in the air outlet area of the blower device. The heating pipe 7 is arranged in the pipe body 1 in a disc arrangement, and the cross section of the pipe body 1 is circular. The circular cross section can optimize the air flow path and reduce the air flow resistance. The disc arrangement can maximize the length and surface area of the heating pipe 7, and also increase the capacity of the heating medium, which means that more heat can be generated in the same heating time, and the heat transfer efficiency and uniformity are also improved.

[0029] At the same time, the heating pipe 7 penetrates the side wall of the pipe body 1 and is connected to other devices. This penetrating installation method can effectively reduce the shaking problem caused by air flow. Even under high wind speed or large air volume working conditions, the heating pipe 7 can remain stable and immovable, and can also avoid the uneven distribution of heat caused by shaking. In addition, the fixed connection of the heating pipe 7 and the side wall of the pipe body 1 also reduces the risk of loosening or damage of the heating pipe 7 caused by long-term operation or vibration, prolongs the service life of the heating pipe 7, and reduces the maintenance cost.

[0030] Specifically, the heating pipe 7 is provided with a heating medium and an electric heating wire, the two ends of the electric heating wire are connected with the terminal ends of the two end portions of the heating pipe 7, wherein the electric heating wire is embedded in the heating pipe 7, the two ends of the electric heating wire are led out through electrodes, the electrodes are arranged at the two ends of the heating pipe 7, the electric heating wire is tightly fixed through an insulating material, the internal cavity of the heating pipe 7 is filled with the heating medium, after being electrified, the electric heating wire generates heat, and the heat is transmitted to the outside through the heating medium.

[0031] Preferably, the heating medium in the heating pipe 7 is heat-conducting oil, which has high heat conduction performance, and can transmit heat more quickly and effectively compared with the traditional resistance wire heating mode. The temperature of the heat-conducting oil is stable, and a higher temperature can be obtained under normal pressure, which is safer. At the same time, due to its high heat conduction and stability, the heat loss is less during the heating process compared with steam heating, which can greatly improve the thermal efficiency. In addition, the heat-conducting oil also has environmental protection and a wide temperature range, which can meet different temperature requirements.

[0032] In some preferred embodiments of the present application, the number of the heating pipes 7 is multiple, the multiple heating pipes 7 are connected in series, and are arranged in sequence along the axial direction of the pipe body 1. Specifically, the heating device further comprises a first end box 8 and a second end box 9, the first end box 8 and the second end box 9 are connected to the side wall of the pipe body 1, the two ends of the multiple heating pipes 7 pass through the side wall of the pipe body 1, and are connected in series in the first end box 8 and the second end box 9 and connected with the power supply through the terminal. When the multiple heating pipes 7 are connected in series, the current in each heating pipe 7 is equal, which can effectively ensure the uniformity of heating, so the heat generated by each heating pipe 7 is the same, which can make the temperature distribution of the whole heating fan more uniform.

[0033] In some preferred embodiments of the present application, the number of the heating pipes 7 is multiple, the multiple heating pipes 7 are connected in parallel, and are arranged in sequence along the axial direction of the pipe body 1. Specifically, the device further comprises a first end box 8 and a second end box 9, the first end box 8 and the second end box 9 are connected to the side wall of the pipe body 1, the two ends of the multiple heating pipes 7 pass through the side wall of the pipe body 1, and are independently connected with the power supply through the terminal in the first end box 8 and the second end box 9. When the multiple heating pipes 7 are connected in parallel, the total resistance of the heating device is the reciprocal of the sum of the reciprocals of the resistances of the multiple heating pipes 7, which is usually smaller than the resistance of a single heating pipe 7. Therefore, under the same voltage, the current of the parallel circuit will be larger, the conversion efficiency of the electric heating will be higher, and the waste of energy will be greatly reduced. At the same time, if one of the heating pipes 7 is damaged, the others can still work normally, which can improve the reliability and stability of the whole heating fan.

[0034] Further, the air supply device is an axial flow fan. Compared with a centrifugal fan, the axial flow fan adopted in the application has a spiral axial direction of airflow during ventilation and does not change the flow direction of the airflow, so that the air supply amount is more stable during operation. The centrifugal fan has a large air speed, which is not conducive to the stability of the entire system. Specifically, the air supply device includes a mesh cover 2, a motor 3, an impeller 5, and a plurality of blades 6. The mesh cover 2, the motor 3, and the impeller 5 are coaxially arranged. The motor 3 is arranged between the mesh cover 2 and the impeller 5. The impeller 5 is installed on the rotating shaft of the motor 3 through a shaft sleeve. The plurality of blades 6 are fixedly connected to the outer periphery of the impeller 5. Specifically, the air supply device further includes a fixing frame 4, which is fixedly installed on the inner wall of the shell 1. At the same time, the motor 3 is fixedly installed on the fixing frame 4 by bolts to improve the stability of the motor 3 during operation.

[0035] A temperature-controlled workshop includes a sensor, a controller, and a plurality of groups of the heating fan described above. The sensor is arranged on the outer wall of the pipe body 1 and connected with the controller for receiving temperature information. The controller is connected with the sensor and the motor 3, respectively. The sensor feeds back temperature information to the controller, and the controller controls the operation of the motor 3. Since the heating fan has a simple structure and is convenient to disassemble, the process of combined arrangement can be simplified during use, and the layout adjustment is more flexible. The heating fan, the sensor, and the controller are effectively combined together, and automatic control can be realized. Since the temperature stability of the heat conducting oil is good, accurate control of parameters such as temperature and flow can be realized.

[0036] The specific embodiments of the application are described in detail above. For those skilled in the art, without departing from the principles of the application, some improvements and modifications can be made to the application. These improvements and modifications also belong to the protection scope of the claims of the application.

Claims

1. A heating fan, characterized in that: it comprises a pipe body (1) arranged coaxially, a blowing device and a heating device, the blowing device and the heating device are accommodated in the pipe body (1), and the heating device is arranged at the air outlet end of the blowing device; the heating device comprises a heating pipe (7) connected to the side wall of the pipe body (1) along the radial direction of the pipe body (1) and arranged in the air outlet area of the blowing device, the heating pipe (7) is provided with a heating medium and an electric heating wire, and the two ends of the electric heating wire are respectively connected to the terminal ends of the two end portions of the heating pipe (7).

2. The heating fan according to claim 1, characterized in that: the number of the heating pipes (7) is multiple, and the multiple heating pipes (7) are arranged in series and arranged in sequence along the axial direction of the pipe body (1).

3. The heating fan according to claim 1, characterized in that: the heating device further comprises a first end box (8) and a second end box (9), the first end box (8) and the second end box (9) are connected to the side wall of the pipe body (1), the two ends of the multiple heating pipes (7) respectively pass through the side wall of the pipe body (1) and are connected in series in the first end box (8) and the second end box (9) and connected to the power supply through the terminal ends.

4. The heating fan according to claim 1, characterized in that: the number of the heating pipes (7) is multiple, and the multiple heating pipes (7) are arranged in parallel and arranged in sequence along the axial direction of the pipe body (1).

5. The heating fan according to claim 1, characterized in that: the heating device further comprises a first end box (8) and a second end box (9), the first end box (8) and the second end box (9) are connected to the side wall of the pipe body (1), the two ends of the multiple heating pipes (7) respectively pass through the side wall of the pipe body (1) and are independently connected to the power supply through the terminal ends in the first end box (8) and the second end box (9).

6. The heating fan according to claim 1, characterized in that: the blowing device is an axial fan, and the blowing device comprises a mesh cover (2), a motor (3), an impeller (5) and a plurality of blades (6), the mesh cover (2), the motor (3) and the impeller (5) are arranged coaxially, the motor (3) is arranged between the mesh cover (2) and the impeller (5), the impeller (5) is installed on the rotating shaft of the motor (3) through a shaft sleeve, and the plurality of blades (6) are fixedly connected to the outer periphery of the impeller (5).

7. The heating fan according to claim 1, characterized in that: the heating medium in the heating pipe (7) is heat conducting oil.

8. A temperature-controlled workshop, characterized in that: it comprises a sensor, a controller and a plurality of groups of the heating fan according to claim 6, the sensor is arranged on the outer wall of the pipe body (1) and connected to the controller for receiving temperature information, the controller is connected to the sensor and the motor (3) respectively, the sensor feeds back the temperature information to the controller, and then the controller controls the operation of the motor (3). ​ ​ ​ ​ ​ ​ ​ ​ ​

Images