Aluminum sleeve type electric heating tube structure for electric heating defrosting of air cooler

Abstract

The utility model belongs to the technical field of air coolers, and particularly relates to an aluminum sleeve type electric heating tube structure for electric heating defrosting of an air cooler, which comprises an air cooler body, the air cooler body comprises a shell, a heat exchanger is arranged in the shell, and a fan is arranged in the shell on one side of the heat exchanger. An electric heating defrosting mechanism is arranged in the heat exchanger, the electric heating defrosting mechanism comprises an electric heating pipe designed to be in a U shape, a first aluminum sleeve is arranged on the outer side of the electric heating pipe, a second aluminum sleeve is arranged on the outer side of the first aluminum sleeve, and convergent pipes designed to be in a conical shape are arranged at the two ends of the second aluminum sleeve. And a heat conducting sheet is arranged between the first aluminum sleeve and the second aluminum sleeve. The utility model has the advantages of reasonable design, simple structure and convenience in processing, can realize the gradient heat conduction effect, improves the heat conduction progress, ensures the heat conduction efficiency, ensures the defrosting work to be smoothly carried out, and meets the use requirements.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cold -blast machine technical field especially relates to a kind of aluminium sleeve pipe type electric heating tube structure for cold -blast machine electric heating defrosting. BACKGROUND

[0002] The relative humidity of air in cold storage is relatively high, when the refrigeration system is in normal operation, the surface temperature of air cooler is far below the dew point temperature of air, the moisture in air will be condensed on the pipe wall of air cooler, when the pipe wall temperature is below 0 ℃, the water dew is condensed into frost;With the thickening of frost layer, the effective air circulation between fins is reduced, the air flow resistance is increased, the air flow is reduced, the heat transfer resistance between working medium and air in air cooler is increased, the heat transfer efficiency of air cooler is reduced, the heat absorption capacity of working medium from air is reduced, the refrigeration capacity is reduced, the power consumption of refrigeration compressor and air cooler fan is increased, and the refrigeration efficiency is reduced.As the heat transfer capacity of air to working medium in air cooler is weakened, the liquid working medium in air cooler may not be able to absorb heat and vaporize completely, which may cause liquid working medium to enter the compressor, resulting in liquid impact and damage to the compressor.

[0003] In the prior art, the electric heating defrosting mode is usually used for processing, and the installation of electric heating assembly generally has the following two schemes: one is bare tube direct insertion type, that is, the electric heating tube is directly inserted into the gap between fins, which has the problems of low heat transfer efficiency, local overheating damage to fins and easy oxidation corrosion after long-time operation of the equipment, and the other is ordinary sleeve type, that is, the electric heating tube is wrapped with stainless steel sleeve, which can overcome some disadvantages of bare tube direct insertion type and improve the protection, but the heat transfer effect is poor, which affects the defrosting process, and the functionality is limited, therefore, the aluminium sleeve pipe type electric heating tube structure for cold -blast machine electric heating defrosting is provided, which has reasonable design, simple structure, convenient processing and can realize gradient heat transfer effect to improve the heat transfer process, ensure heat transfer efficiency, ensure smooth defrosting work, meet the use requirement. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of aluminium sleeve pipe type electric heating tube structure for cold -blast machine electric heating defrosting, which has reasonable design, simple structure, convenient processing and can realize gradient heat transfer effect to improve the heat transfer process, ensure heat transfer efficiency, ensure smooth defrosting work, meet the use requirement.

[0005] To achieve the above objectives, the present invention adopts an aluminum-sleeved electric heating tube structure for electric defrosting of a evaporative air cooler, comprising an evaporative air cooler body, the evaporative air cooler body including a shell, a heat exchanger disposed inside the shell, and a fan disposed inside the shell on one side of the heat exchanger. The evaporative defrosting mechanism is characterized in that the heat exchanger contains an electric defrosting mechanism, the electric defrosting mechanism including a U-shaped electric heating tube, a first aluminum sleeve disposed outside the electric heating tube, a second aluminum sleeve disposed outside the first aluminum sleeve, tapered conical end caps on both ends of the second aluminum sleeve, and a heat-conducting fin disposed between the first and second aluminum sleeves.

[0006] Preferably, the heat-conducting sheet is designed in a wavy arc shape, and the four heat-conducting sheets are arranged in a ring on the outside of the first aluminum sleeve, with the heat-conducting sheets of adjacent groups arranged in an alternating pattern.

[0007] Preferably, the inner side of the first aluminum sleeve is provided with a thermally conductive silicone grease filling layer.

[0008] Preferably, the outer side of the second aluminum sleeve is provided with a directional boss.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0010] 1. This utility model provides an aluminum-sheathed electric heating tube structure for electric defrosting of air coolers. Utilizing the established electric heating tube and aluminum sheath, the heating tube can conduct heat in a gradient manner when heating, ensuring its heat conduction effect and guaranteeing the defrosting process. Simultaneously, it improves the connection between the heating tube and the heat exchanger, reducing the possibility of vibration and ensuring smooth heat conduction to meet usage requirements. This device is reasonably designed, simple in structure, easy to manufacture, and achieves a gradient heat conduction effect, thus improving the heat conduction process, ensuring heat transfer efficiency, guaranteeing smooth defrosting, and meeting usage requirements. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of the air cooler provided by this utility model;

[0013] Figure 2 A schematic diagram of the structure of the electric defrosting mechanism provided by this utility model installed in a cold air blower;

[0014] Figure 3 This is a partial internal structural diagram of the electrothermal defrosting mechanism provided by this utility model.

[0015] Figure 4 A top view of part of the internal structure of the electrothermal defrosting mechanism provided by this utility model;

[0016] Figure 5 This is a front view of part of the internal structure of the electrothermal defrosting mechanism provided by this utility model;

[0017] In the above figures, 1. Air cooler body; 2. Shell; 3. Heat exchanger; 4. Fan; 5. Electric defrosting mechanism; 51. Heating element; 52. First aluminum sleeve; 521. Thermal grease filling layer; 53. Second aluminum sleeve; 531. Closing tube; 54. Heat-conducting plate; 6. Orientation boss. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Examples, such as Figures 1-5As shown, an aluminum-cased electric heating tube 51 structure for electric defrosting of an air cooler includes an air cooler body 1, which includes a housing 2. A heat exchanger 3 is disposed within the housing 2, and a fan 4 is disposed within the housing 2 on one side of the heat exchanger 3. The arrangement of the aforementioned components is a conventional structure for air coolers in the prior art, and the installation and arrangement of the components are readily understood by those skilled in the art; therefore, further details are omitted. This embodiment aims to solve the problem of poor heat conduction during electric defrosting of the air cooler. Specifically, an electric defrosting mechanism 5 is disposed within the heat exchanger 3, and the electric defrosting mechanism 5 includes a U-shaped electric heating tube. 51. The electric heating element 51 is a conventional technology in the prior art. After conducting electricity, it generates heat and can transfer heat outwards, thus acting on the heat exchanger 3 of the air cooler to complete the electric defrosting operation. To ensure heat conduction, a first aluminum sleeve 52 is provided on the outside of the electric heating element 51, and a second aluminum sleeve 53 is provided on the outside of the first aluminum sleeve 52. The second aluminum sleeve 53 is pre-assembled with the first aluminum sleeve 52, and then an external hydraulic device is used to press the assembly into the fin holes of the heat exchanger 3, achieving a tight interference fit with the heat exchanger 3 to ensure stability. The two ends of the second aluminum sleeve 53 are provided with tapered conical end caps 531. The tapered end structure of tube 51 can improve the tightness of the fit between the aluminum sleeve and the heating element 51 to a certain extent. Additionally, high-temperature resistant epoxy adhesive is applied to the end of the end tube 531 for fixation, preventing it from falling off. A heat-conducting plate 54 is provided between the first aluminum sleeve 52 and the second aluminum sleeve 53. Specifically, the heating element 51 is the core heating layer of the electric defrosting mechanism 5, generating heat for defrosting. The thermally conductive silicone grease filling layer 521 inside the first aluminum sleeve 52 serves as an interface conduction layer to ensure convenient heat conduction. The first aluminum sleeve 52 and the second aluminum sleeve 53 form a heat diffusion layer. The second aluminum sleeve 53 is connected to the heat exchanger... The fin structure in heat exchanger 3 is interference-fitted, and the wavy heat-conducting fins 54 ensure the uniform distribution of heat between the two aluminum sleeves, which provides the prerequisite for the subsequent conduction of heat towards heat exchanger 3, ensuring the relatively consistent implementation of defrosting and guaranteeing the defrosting effect. When conducting heat, the above-mentioned electric defrosting mechanism 5 conducts heat from the heating area outward in a gradient manner, that is, from the heating element to the interface material, and then acts on the metal tube, and finally acts on the fins of heat exchanger 3, which to a certain extent guarantees its heat conduction effect. At the same time, the setting of heat-conducting fins 54 can increase the heat conduction surface, and then act on the aluminum sleeve to complete the convenient heat transfer, ensuring the smooth implementation of defrosting.

[0021] In the above process: the established electric heating tube 51 and aluminum sleeve enable the electric heating tube 51 to conduct heat in a gradient manner when heating, so as to ensure its heat conduction effect, ensure the defrosting process, and at the same time improve the connection between it and the heat exchanger 3, reduce the possibility of shaking, ensure the smooth operation of heat conduction, and meet the usage requirements. This device is reasonably designed, simple in structure, easy to process, and can achieve a gradient heat conduction effect to improve its heat conduction process, ensure heat transfer efficiency, ensure the smooth operation of defrosting, and meet the usage requirements.

[0022] To further improve the rationality of the device setup, the heat-conducting plate 54 is designed in a wavy arc shape. Four heat-conducting plates 54 are arranged in a ring on the outside of the first aluminum sleeve 52. The heat-conducting plates 54 in adjacent groups are arranged in an alternating pattern. Specifically, the wavy design of the heat-conducting plate 54 can increase the heat exchange area to a certain extent, providing a prerequisite for heat transfer. Its specific function is to ensure that the heat can be evenly distributed and diffused, thus ensuring the heat conduction process.

[0023] To further improve the heat conduction effect of the electric defrosting mechanism 5, a thermally conductive silicone grease filling layer 521 is provided on the inner side of the first aluminum sleeve 52. It serves as an interface conduction layer for the electric defrosting mechanism 5 during the heat conduction process, so that the heating tube 51 can smoothly transfer heat to the aluminum sleeve structure after heating, thus fully ensuring the heat conduction performance.

[0024] To improve the convenience of equipment installation, a directional boss 6 is provided on the outer side of the second aluminum sleeve 53. Its function is to ensure that the electric defrosting mechanism 5 has an axial positioning function during installation, so as to prevent the possibility of misalignment during assembly, ensure the connection effect, and ensure good contact between the electric defrosting mechanism 5 and the heat exchanger 3, so as to ensure the smooth operation of heat conduction defrosting.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An aluminum-cased electric heating tube structure for electric defrosting of a cold air blower, comprising a cold air blower body, the cold air blower body including a housing, a heat exchanger disposed within the housing, and a fan disposed within the housing located on one side of the heat exchanger, characterized in that, The heat exchanger is equipped with an electric defrosting mechanism, which includes a U-shaped electric heating tube. A first aluminum sleeve is provided on the outside of the electric heating tube, and a second aluminum sleeve is provided on the outside of the first aluminum sleeve. Both ends of the second aluminum sleeve are provided with tapered concave tubes, and a heat-conducting fin is provided between the first aluminum sleeve and the second aluminum sleeve.

2. The aluminum-sheathed electric heating tube structure for electric defrosting of air conditioners according to claim 1, characterized in that, The heat-conducting plates are designed in a wavy arc shape. The four heat-conducting plates are arranged in a ring on the outside of the first aluminum sleeve, and the heat-conducting plates of adjacent groups are arranged in an alternating pattern.

3. The aluminum-sheathed electric heating tube structure for electric defrosting of air conditioners according to claim 2, characterized in that, The inner side of the first aluminum sleeve is provided with a thermally conductive silicone grease filling layer.

4. The aluminum-sheathed electric heating tube structure for electric defrosting of air conditioners according to claim 3, characterized in that, The outer side of the second aluminum sleeve is provided with a directional boss.

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