Electric heating anti-freezing device

Abstract

The invention discloses an electric heating anti-freezing device, which relates to the technical field of heating equipment, and comprises an air supply box, an air inlet is arranged at the bottom of the heating air supply box, the air inlet is communicated with the external environment, a heater for heating air and a fan are arranged in the heating air supply box, and the heater is positioned between the fan and the air inlet along the airflow movement direction. An air outlet corresponding to an air outlet path of the fan is formed in the heating air supply box, and a shutter is arranged at the air outlet; according to the hot air conveying device, heated air is exhausted from the air outlet through the heating effect of the heater in the heating air supply box, the hot air conveying device is small in occupied area, can be directly placed in an energy station, does not need to be provided with an air pipe for conveying, can achieve centralized heat release and is low in energy consumption; in addition, by means of the shutter at the air outlet and the air inlet formed in the bottom, the amount of dust and external water entering the box body can be reduced, and the protection effect on the internal fan and the heater is improved.

Description

Technical Field

[0001] The invention relates to the technical field of heating equipment, in particular to an electric heating antifreeze device. Background Art

[0002] In the north or plateau areas, winter heating is a mandatory requirement and a livelihood issue. The main forms of heating energy include municipal heating systems, gas / electric boiler systems, air source / water source / ground source heat pump systems, etc.; no matter municipal heat exchange stations, boiler energy stations, air source / water source / ground source energy stations will face the problem of long-term downtime during abnormal operation in winter. Once the heating energy station is stopped for a long time, the temperature will drop sharply to below zero. The pipes will freeze inside if they are below zero for a long time, and the instruments and equipment will be damaged, especially for energy stations on the ground or in outdoor cabin energy forms. The freezing and damage in the winter downtime are more serious.

[0003] At present, in order to solve the problem of ice damage in energy stations, the method of using ducts to deliver hot air is often used to provide heat for energy stations. Specifically, electric heating equipment is used to heat the air, and then the hot air is delivered to the energy station by using suspended ducts. However, due to the duct hoisting and layout, the overall equipment occupies a large area, has a complex structure, and has the problem of non-concentrated heat. Heat is lost during transportation, which leads to high energy consumption.

[0004] Therefore, people are in urgent need of an electric heating antifreeze device which occupies a small area, has centralized heat release and has low energy consumption. Summary of the invention

[0005] The purpose of the present invention is to provide an electric heating antifreeze device to solve the problems existing in the above-mentioned prior art. The heating air supply box is directly placed in the energy station, and there is no need to set up air ducts for transportation. It occupies a small area, can achieve centralized heat release and has low energy consumption.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides an electric heating antifreeze device, comprising a heating air supply box spaced apart from an installation base surface, an air inlet being arranged at the bottom of the heating air supply box, the air inlet being connected to the external environment, a heater and a fan for heating air being arranged inside the heating air supply box, the heater being located between the fan and the air inlet along the direction of air flow movement, an air outlet being opened on the heating air supply box corresponding to the air outlet path of the fan, and a shutter being arranged at the air outlet.

[0007] Preferably, the shutters are self-hanging shutters.

[0008] Preferably, a filter screen is provided at the air inlet.

[0009] Preferably, the heater is a PTC electric heater, and a plurality of the PTC electric heaters are arranged in the heating air supply box, and the plurality of the PTC electric heaters are located on the same horizontal plane, and a layer plate for supporting is arranged below the plurality of the PTC electric heaters, and the layer plate is installed on the inner wall surface of the heating air supply box, and the layer plate has a through opening at the position corresponding to the air flow channel of the PTC electric heater. Preferably, an air guide tube is arranged inside the heating air supply box, and the air guide tube is in a frustum shape, and one end of the air guide tube is connected to the four peripheral edges of the fan, and the other end is connected to the inner wall surface of the heating air supply box around the air outlet.

[0010] Preferably, the heating air supply box is arranged on the installation base through a base, the base is hollowed out, and the air inlet is connected to the external environment through the hollow space of the base.

[0011] Preferably, the electric heating antifreeze device also includes a power distribution control box, which is provided with a control module and a power supply for controlling the fan and the heater. The fan and the heater are electrically connected to the power supply through the control module, and the power distribution control box is arranged on the top of the heating air supply box.

[0012] Preferably, a first temperature sensor is arranged at the air inlet, a second temperature sensor is arranged at the air outlet, a temperature meter for displaying temperature values ​​is arranged on the power distribution control box, and the first temperature sensor, the second temperature sensor and the temperature meter are all electrically connected to the control module.

[0013] Preferably, the temperature meter is arranged inside the power distribution control box, and a glass window is provided in the power distribution control box at a position corresponding to the temperature meter.

[0014] Preferably, the inner wall of the power distribution control box is provided with a thermal insulation layer.

[0015] Compared with the prior art, the present invention mainly achieves the following technical effects:

[0016] Through the heating effect of the heater in the heating air supply box and the drainage effect of the fan, the outside air is inhaled, and the heater is used to heat the inhaled air in the heating air supply box, and the heated air is discharged from the air outlet. The hot air conveying device occupies a small area and can be placed directly in the energy station. There is no need to set up air ducts for conveying, and centralized heat release can be achieved, which solves the problem of heat loss during air duct conveying when air duct conveying is set, that is, the energy consumption of the device is low; in addition, the shutters at the air outlet and the air inlet set at the bottom can reduce the amount of dust and external water entering the box body, thereby improving the protection effect of the internal fan and heater.

[0017] Compared with the prior art, other solutions of the present invention have achieved the following technical effects:

[0018] Self-hanging shutters automatically close the air outlet when the unit is not in use, further improving the protection of the internal fan and heater.

[0019] The filter screen filters the air and prevents small animals from entering the heating air supply box.

[0020] The first temperature sensor and the second temperature sensor can be used in conjunction with the control module to automatically start and close the device, thereby improving the degree of automation of the device.

[0021] The setting of the insulation layer in the power distribution control box can prevent the temperature in the heating air supply box from affecting the components in the power distribution control box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. 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 creative labor.

[0023] Figure 1 It is a structural schematic diagram of an electric heating antifreeze device in one embodiment of the present invention;

[0024] Figure 2 It is a front view of an electric heating antifreeze device in one embodiment of the present invention;

[0025] Among them, 1. Heating air supply box; 2. Air inlet; 3. Air outlet; 4. PTC electric heater; 5. Fan; 6. Self-hanging shutter; 7. Filter; 8. Air guide tube; 9. U-shaped angle steel; 10. Power distribution control box; 11. Control button; 12. Temperature instrument; 13. Glass window; 14. Shelf. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The purpose of the present invention is to provide an electric heating antifreeze device to solve the problems existing in the prior art. The heating air supply box is directly placed in the energy station, and there is no need to set up air ducts for transportation. It occupies a small area and can achieve centralized heat release with low energy consumption.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Please refer to Figure 1 , Figure 2 As shown, an electric heating antifreeze device is provided, including a heating air supply box 1 arranged at a distance from an installation base surface, an air inlet 2 is arranged at the bottom of the heating air supply box 1, and the air inlet 2 is connected to the external environment. A heater and a fan 5 are arranged inside the heating air supply box 1, the heater is used to heat the air, and the fan 5 is used to guide the air. Along the direction of air flow movement, the heater is located between the fan 5 and the air inlet 2, so as to realize the heating of the air introduced by the fan 5 at the air inlet 2, and an air outlet 3 is opened on the heating air supply box 1 corresponding to the air outlet path of the fan 5, and a shutter is arranged at the air outlet 3. The hot air conveying device occupies a small area and can be directly placed in the energy station. There is no need to set up an air duct for conveying, and centralized heat release can be realized, so as to solve the problem of heat loss during the air duct conveying process when the air duct is set, that is, the energy consumption of the device is low; in addition, the shutter at the air outlet 3 and the air inlet 2 arranged at the bottom can be used to reduce the amount of dust and external water entering the box body, thereby improving the protection effect of the internal fan 5 and the heater.

[0030] In this embodiment, the shutters are self-hanging shutters 6. By utilizing the characteristic of the self-hanging shutters 6 that they automatically close when there is no airflow, the air outlet 3 can be automatically closed when the device is not in use, further improving the protection effect of the internal fan 5 and the heater.

[0031] In order to further improve the protection effect of the internal fan 5 and the heater, a filter screen 7 is provided at the air inlet 2 to filter the air and prevent small animals from entering the heating air supply box 1.

[0032] The filter screen 7 is arranged inside the air inlet 2 and fixed at the air inlet 2 by welding. At this time, the air inlet 2 can be arranged as a grid structure to play a supporting role for the filter screen 7.

[0033] In the present embodiment, the heater is a PTC electric heater 4, which is in the shape of a rectangular parallelepiped. A plurality of PTC electric heaters 4 are arranged in the heating air supply box 1, and the plurality of PTC electric heaters 4 are located on the same horizontal plane. The arrangement of a plurality of PTC electric heaters 4 can increase the contact area between the airflow and the heater, and improve the heating effect on the airflow. When actually setting up, in order to improve the installation stability of the PTC electric heaters 4, a layer plate 14 is arranged below the plurality of PTC electric heaters 4, and the layer plate 14 plays the role of supporting the PTC electric heater 4. The layer plate 14 is installed on the inner wall surface of the heating air supply box 1 by bolts or welding, and a through opening is opened in the layer plate 14 corresponding to the airflow channel of the PTC electric heater 4. In other embodiments, an electric heating wire or other heaters can be used instead of the PTC electric heater 4.

[0034] An air guide tube 8 is provided inside the heating air supply box 1. The air guide tube 8 is in a cone shape. One end of the air guide tube 8 is bolted or welded to the four peripheral edges of the fan 5, and the other end is bolted or welded to the inner wall of the heating air supply box 1 around the air outlet 3. The air guide tube 8 is used to guide the airflow blown out by the fan 5. In this embodiment, the small diameter end of the air guide tube 8 is connected to the fan 5, and the large diameter section is connected to the inner wall of the heating air supply box 1.

[0035] Due to the setting of the air guide tube 8, the fan 5 is located in the middle of the inner cavity of the heating air supply box 1. At this time, the PTC electric heater 4 does not need to cover the entire layer plate 14, and the laying range only needs to correspond to the space between the suction side of the fan 5 and the inner wall surface of the heating air supply box 1 facing the suction side of the fan 5.

[0036] The heating air supply box 1 is set on the installation base through the base, so that the heating air supply box 1 and the installation base are spaced apart, the base is hollowed out, and the air inlet 2 is connected to the external environment through the hollow space of the base.

[0037] In this embodiment, the base is two U-shaped angle steels 9, and the open ends of the U-shaped angle steels 9 are connected to the bottom of the heating air supply box 1 to achieve ventilation on all sides and reduce the weight of the overall device; in other embodiments, the base can be a frame structure or legs.

[0038] The electric heating antifreeze device also includes a power distribution control box 10, which is provided with a control module and a power supply for controlling the fan 5 and the heater. The fan 5 and the heater are electrically connected to the power supply through the control module. Corresponding control buttons 11 can be provided on the outer wall of the power distribution control box 10 to realize manual control of the device. The power distribution control box 10 is arranged on the top of the heating and air supply box 1 to reduce the occupation of the lateral space; wiring holes are provided at the bottom of the distribution box control box and the top of the heating and air supply box 1 for the wires used to control and circulate current to pass through.

[0039] The power distribution control box 10 and the heating and air supply box 1 can be set as an integrated structure, separated into two cavities by a partition in the middle, and the two cavities represent two boxes.

[0040] The manually controlled control button 11 can be provided with a plurality of power buttons to control the power of the PTC electric heater 4 , and specifically, can be provided with a plurality of gears such as 3KW, 6KW, 9KW, 12KW, etc.

[0041] In this embodiment, a first temperature sensor is arranged at the air inlet 2, a second temperature sensor is arranged at the air outlet 3, and a temperature meter 12 for displaying temperature values ​​is arranged on the power distribution control box 10. The first temperature sensor, the second temperature sensor and the temperature meter 12 are all electrically connected to the control module, and the temperature measured by the first temperature sensor and the second temperature sensor is displayed in real time at the temperature meter 12; and the control module can control the fan 5 and the heater according to the temperature measured by the first temperature sensor and the second temperature sensor, thereby improving the degree of automation of the device. The specific control principle is: set the required temperature data and the high temperature warning temperature data, when the temperature detected by the first temperature sensor is lower than the set required temperature, the control module controls the fan 5 and the heater to start, the second temperature sensor detects the outlet temperature in real time, when the outlet temperature is higher than the set required temperature, the control module controls the fan 5 and the heater to turn off, when the temperature detected by the first temperature sensor is equal to or higher than the set required temperature, the control module controls the fan 5 and the heater to turn off, when the temperature detected by the first temperature sensor is higher than the high temperature warning temperature, the control module controls the device to be forced to shut down; wherein when the outlet temperature is higher than the set required temperature, the heater can be controlled to turn off first, and the fan 5 continues to be turned on for a period of time to introduce the residual heat of the heater into the external environment.

[0042] In order to improve the protection effect of the temperature instrument 12, the temperature instrument 12 is arranged inside the power distribution control box 10. A glass window 13 is arranged at the position of the power distribution control box 10 corresponding to the temperature instrument 12. The glass of the glass window 13 is organic glass, and sealant is applied to the gaps around the glass window 13 to seal the gaps. The inner peripheral wall of the power distribution control box 10 is provided with a heat preservation layer to prevent the temperature inside the heating air supply box 1 from affecting the components inside the power distribution control box 10.

[0043] An opening and closing door structure may be provided on the heating air supply box 1 and the power distribution control box 10 to facilitate the later inspection and maintenance of the internal parts.

[0044] During actual use, the manual control or automatic control device is started, and the fan 5 drives the air to move. The moving air enters the heating air supply box 1 from the air inlet 2, is heated when passing through the heater, and the heated air is discharged from the self-hanging shutter 6 of the air outlet 3 to achieve heating of the external environment.

[0045] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0046] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0047] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An electric heating antifreeze device, characterized in that: It includes a heating air supply box spaced apart from the installation base surface, wherein an air inlet is arranged at the bottom of the heating air supply box, and the air inlet is communicated with the external environment; a heater and a fan for heating air are arranged inside the heating air supply box, and along the direction of air flow movement, the heater is located between the fan and the air inlet; an air outlet is opened on the heating air supply box corresponding to the air outlet path of the fan, and a shutter is arranged at the air outlet.

2. The electric heating antifreeze device according to claim 1, characterized in that: The shutters are self-hanging shutters.

3. The electric heating antifreeze device according to claim 1, characterized in that: A filter screen is arranged at the air inlet.

4. The electric heating antifreeze device according to claim 1, characterized in that: The heater is a PTC electric heater, and several of the PTC electric heaters are arranged in the heating air supply box. The several PTC electric heaters are located on the same horizontal plane, and a layer plate for supporting is arranged below the several PTC electric heaters. The layer plate is installed on the inner wall surface of the heating air supply box, and the layer plate has an opening corresponding to the position of the air flow channel of the PTC electric heater.

5. The electric heating antifreeze device according to claim 1, characterized in that: An air guide tube is arranged inside the heating air supply box, and the air guide tube is in a cone shape. One end of the air guide tube is connected to the four edges of the fan, and the other end is connected to the inner wall surface of the heating air supply box around the air outlet.

6. The electric heating antifreeze device according to claim 1, characterized in that: The heating air supply box is arranged on the installation base through a base, the base is hollowed out, and the air inlet is connected to the external environment through the hollow space of the base.

7. The electric heating antifreeze device according to claim 1, characterized in that: The electric heating antifreeze device also includes a power distribution control box, which is equipped with a control module and a power supply for controlling the fan and the heater. The fan and the heater are electrically connected to the power supply through the control module, and the power distribution control box is arranged on the top of the heating air supply box.

8. The electric heating antifreeze device according to claim 7, characterized in that: A first temperature sensor is arranged at the air inlet, a second temperature sensor is arranged at the air outlet, a temperature meter for displaying temperature values ​​is arranged on the power distribution control box, and the first temperature sensor, the second temperature sensor and the temperature meter are all electrically connected to the control module.

9. The electric heating antifreeze device according to claim 8, characterized in that: The temperature meter is arranged inside the power distribution control box, and a glass window is arranged at a position of the power distribution control box corresponding to the temperature meter.

10. The electric heating antifreeze device according to claim 7, characterized in that: The inner peripheral wall of the power distribution control box is provided with a heat insulation layer.

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