Heating rod heat conducting structure for electric heating dryer and dryer

Abstract

The utility model relates to air suspension gas supply system technical field discloses a kind of heating rod heat conduction structure for electric heating dryer, install in the containing cavity of dryer shell, including the heating component of being arranged in the inside of dryer, at least one heat conduction component is arranged in the periphery of heating component;The heat conduction component extends along its radial direction to the containing cavity peripheral wall, and the surface of heat conduction component is provided with air hole.The utility model's heat conduction component is installed in the periphery of heating component, effectively provides heat conduction for the edge position of the inside of dryer shell far from heating component, so that the temperature distribution in the containing cavity of entire dryer is more uniform, so that drying agent material is fully and uniformly regenerated.

Description

Technical Field

[0001] This utility model relates to the technical field of air suspension air supply system, specifically to the drying and regeneration of gas in the air circuit of the air suspension air supply system, and particularly to a heating rod heat conduction structure and dryer for an electric heating dryer. Background Technology

[0002] To ensure efficient drying performance in both high and low temperature environments, air suspension system dryers typically use molecular sieves as the water-absorbing material. Furthermore, to guarantee the continued effectiveness of the drying function throughout the vehicle's lifespan, the desiccant's regeneration capability must be considered.

[0003] Currently, air dryers in air suspension systems generally use molecular sieves as desiccant and regenerate through heating. To obtain the high temperatures required for regeneration, the air dryer usually needs to be placed close to the system's high-power heat-generating components, resulting in poor layout flexibility. At the same time, due to many limiting factors such as the heating rate of the heat source and the steady-state temperature, it is often difficult to meet the temperature range requirements for regeneration in practice, leading to low regeneration efficiency or even failure to achieve regeneration.

[0004] In publication number CN119499830A, a dryer with an independent electric heating module is disclosed, which can solve the problem of desiccant regeneration heating. However, for some applications with a large dryer cylinder diameter, the centrally placed columnar heating rod is difficult to ensure efficient heating and heat conduction in the edge area of ​​the drying cylinder that is far from the heating rod.

[0005] Therefore, there is an urgent need for a heat-conducting structure that can improve heat transfer efficiency. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a heat-conducting structure for a heating rod, which improves heat conduction, provides heat conduction to the edge position inside the drying cylinder away from the heating rod, optimizes the even distribution of heating heat, and improves heating regeneration efficiency.

[0007] To achieve the above technical objectives, this application provides the following technical solution: As a first aspect, this utility model provides a heating rod heat conduction structure for an electric heating dryer. The heating rod heat conduction structure for an electric heating dryer is installed in the accommodating cavity of the dryer shell and includes a heating component disposed inside the dryer. At least one heat conduction component is disposed on the outer periphery of the heating component. The heat conduction component extends radially toward the peripheral wall of the accommodating cavity, and a vent hole is opened on the surface of the heat conduction component.

[0008] According to this utility model, further, there are multiple heat-conducting components, which are arranged at intervals along the axial direction of the heating component.

[0009] According to this utility model, the heat-conducting component has a central mounting hole, which is fitted with the heating component with a small clearance.

[0010] According to this utility model, the heat-conducting component is made of a corrosion-resistant metal material.

[0011] According to this utility model, the heat-conducting component is further defined as a thin sheet.

[0012] According to this utility model, the heat-conducting component is made of stainless steel.

[0013] According to this invention, the shape of the vent hole includes, but is not limited to, a circular, elliptical, or elongated shape. Furthermore, the opening of the vent hole is smaller than the pore diameter of the desiccant material inside the dryer.

[0014] As a second aspect, the present invention also provides a dryer, including a dryer shell with a accommodating cavity, a heating element and desiccant material distributed around the heating element in the accommodating cavity, and a front end cover and a rear end cover respectively provided at both ends of the dryer shell, and a heating rod heat-conducting structure as described above is fitted around the heating element.

[0015] According to this utility model, the desiccant material is filled between two adjacent heat-conducting components; perforated baffles are also provided on both sides of the heating component along its length, and both the heat-conducting component and the desiccant material are disposed between the two perforated baffles, with filter felt provided on the facing surfaces of the two perforated baffles; an elastic element is provided between the perforated baffle on one side and the corresponding end cap.

[0016] According to this utility model, the desiccant material is filled between two adjacent heat-conducting components; perforated baffles are also provided on both sides of the heating component along its length direction, and both the heat-conducting component and the desiccant material are disposed between the two perforated baffles. Filter felt is provided on the facing surfaces of the two perforated baffles and on at least one side surface of the heat-conducting component; an elastic element is provided between one of the perforated baffles and the corresponding end cap.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: The heat-conducting component of this invention is installed on the outer periphery of the heating component, which effectively provides heat conduction to the edge position inside the dryer shell that is far away from the heating component, making the temperature distribution in the entire cavity of the dryer more uniform, thereby enabling the desiccant material to be fully and uniformly regenerated.

[0018] The ventilation holes of the heat-conducting component of this invention can ensure smooth airflow during the regeneration and drying process. At the same time, the pore size is smaller than that of the desiccant material, which can effectively prevent desiccant particles from passing through, thus playing an auxiliary filtration and separation role.

[0019] The heat-conducting component of this invention has a simple structure and can be directly installed on the outer periphery of existing heating components, making installation convenient. Attached Figure Description

[0020] Figure 1a This is a first-view structural schematic diagram of the heat-conducting component of this utility model; Figure 1b This is a second-view structural schematic diagram of the heat-conducting component of this utility model; Figure 2 This is a schematic diagram of one embodiment of the heat-conducting structure of the heating rod for an electric heating dryer according to the present invention. Figure 3 This is a schematic diagram of another embodiment of the heat-conducting structure of the heating rod for an electric heating dryer according to the present invention; In the attached diagram, 1-dryer shell; 2-heating module sleeve; 3-desiccant drying assembly; 31-filter felt; 32-perforated baffle; 33-desiccant material; 34-heat-conducting component; 341-central mounting through hole; 342-vent hole; 4-heating element assembly; 5-rear end cover; 6-elastic component; 7-front end cover. Detailed Implementation

[0021] 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.

[0022] like Figure 2 As shown, this application embodiment provides an electrically heated dryer with a heating rod heat-conducting structure, including a dryer shell 1 with a cavity, a front end cover 7 installed at one end of the dryer shell 1, a rear end cover 5 installed at the other end of the dryer shell 1, a heating element disposed in the cavity, and a desiccant drying assembly 3 distributed around the heating element. The desiccant drying assembly 3 includes a heat-conducting element 34, which is annular and fitted around the heating element of the electrically heated dryer. The heat-conducting element 34 extends radially to the inner wall of the dryer shell 1 to transfer heat to the inner edge area of ​​the dryer shell 1 that is farther from the heating element, effectively improving the heat conduction range and optimizing the heat conduction efficiency, especially suitable for dryers with large cylinder diameters. The heating element includes a heating element assembly 4 and a heating module sleeve 2 fitted around its outer periphery, with the heat-conducting element 34 fitted around the heating module sleeve 2. Optionally, the heat-conducting element 34 is a thin sheet of corrosion-resistant metal material, preferably stainless steel.

[0023] Specifically, such as Figure 1aand Figure 1b As shown, the heat-conducting component 34 has a central mounting hole 341, which fits with the heating module sleeve 2 with a small clearance, allowing the heat-conducting component 34 to both make good contact with the heating component for heat conduction and to move easily along the axial direction of the heating component. Multiple vent holes 342 are arranged on the surface of the heat-conducting component 34, the diameter of which is smaller than the diameter of the filled desiccant particles. The vent holes 342 effectively increase the heating area of ​​the airflow and the desiccant. The vent holes 342 can be strip-shaped holes evenly distributed circumferentially along its surface, with the length direction of the strip-shaped holes being the radial direction of the heat-conducting component 34; they can also be elliptical; preferably, they are circular holes, a multi-ring annular array of vent holes 342 distributed from the outer periphery of the central mounting hole 341 to the edge along its surface. Compared to strip-shaped holes, circular holes, due to their discontinuous distribution, increase airflow while helping to improve the strength of the heat-conducting component 34 and extend its service life.

[0024] In the embodiments of this application, such as Figure 2 As shown, there are multiple heat-conducting components 34, spaced apart along the axial direction of the heating component. Desiccant material 33 is filled between adjacent heat-conducting components 34. Perforated baffles 32 are also provided on both sides of the heating component along its length. Both the heat-conducting components 34 and the desiccant material 33 are positioned between two perforated baffles 32. Filter felt 31 is provided on the facing surfaces of both perforated baffles 32. The perforated baffles 32 allow the heating component to pass through and limit the axial movement of the heat-conducting components 34. An elastic element 6 is provided between one end of the perforated baffle 32 and the end cap of the housing. The elastic element 6, filter felt 31, and perforated baffle 32, combined with the extrusion force applied to the elastic element 6 by the front end cap 7, provide continuous axial preload to the internal assembly of desiccant material 33 and heat-conducting components 34, preventing desiccant particles from moving and impacting, causing damage. The elastic element 6 is a helical spring.

[0025] In the embodiments of this application, such as Figure 3 As shown, a filter felt 31 is attached to the side surface of each heat-conducting component 34 to ensure smooth airflow and prevent desiccant material from passing through the heat-conducting component 34. The filter felt 31 can be disposed on one side surface of the heat-conducting component 34 or on both sides of the heat-conducting component 34.

[0026] The working principle of this utility model is as follows: During assembly, firstly, the heating element is inserted and fixed into the receiving cavity of the dryer housing 1 at the end closest to the front cover 7. Then, the filter felt 31 and the perforated baffle 32 are installed on the side of the heating element near the rear cover 5. Next, the desiccant material 33 is alternately filled and the heat-conducting component 34 and filter felt 31 are installed. The heat-conducting component 34 is pushed to the predetermined position using the component as a guide shaft. After filling is complete, the filter felt 31, the perforated baffle 32, and the elastic element 6 are sequentially installed at the end closest to the front cover 7, and finally the front cover 7 is tightened. The process of tightening the front cover 7 compresses the elastic element 6, and the counterforce generated by the spring element 9 is transmitted to the entire desiccant drying assembly 3 through the perforated baffle 32 and the filter felt 31, applying an axial preload. This preload compacts the desiccant particles and ensures close contact with the heat-conducting component 34, while allowing the entire assembly to have a certain self-adjusting ability during thermal expansion and contraction, avoiding damage caused by hard compression. Preferably, the front cover 7 has a protrusion on the side of the cavity facing the cavity to facilitate positioning with the elastic member 6, thereby improving the positioning and tightening efficiency of the two.

[0027] When in operation, the heating element is powered on and conducts heat through the heat-conducting element 34 in contact with it to the edge area of ​​the cavity of the dryer housing 1, heating the desiccant far away from the heating element, so that the cavity can be heated evenly.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heating rod heat-conducting structure for an electrically heated dryer, installed within a cavity of the dryer shell, comprising a heating element disposed inside the dryer, characterized in that, At least one heat-conducting component is provided on the outer periphery of the heating component; the heat-conducting component extends radially toward the peripheral wall of the accommodating cavity, and a vent hole is provided on the surface of the heat-conducting component.

2. The heating rod heat-conducting structure for an electrically heated dryer as described in claim 1, characterized in that, The heat-conducting components are multiple and are arranged at intervals along the axial direction of the heating components.

3. The heating rod heat-conducting structure for an electrically heated dryer as described in claim 1, characterized in that, The heat-conducting component has a central mounting hole, which is fitted with the heating component with a small clearance.

4. The heating rod heat-conducting structure for an electrically heated dryer as described in claim 1, characterized in that, The heat-conducting component is made of corrosion-resistant metal material.

5. The heating rod heat-conducting structure for an electrically heated dryer as described in claim 1, characterized in that, The heat-conducting component is in the form of a thin sheet.

6. The heating rod heat-conducting structure for an electrically heated dryer as described in claim 4, characterized in that, The heat-conducting component is made of stainless steel.

7. The heating rod heat-conducting structure for an electrically heated dryer as described in claim 1, characterized in that, The shape of the vent is including but not limited to circular, elliptical or elongated, and the opening of the vent is smaller than the pore size of the desiccant material inside the dryer.

8. A dryer, comprising a dryer shell having a accommodating cavity, wherein a heating element and desiccant material distributed around the outer periphery of the heating element are disposed within the accommodating cavity, and a front cover and a rear cover are respectively disposed at both ends of the dryer shell, characterized in that, The heating rod heat-conducting structure as described in any one of claims 1-7 is fitted around the outer periphery of the heating component.

9. The dryer as claimed in claim 8, characterized in that, The desiccant material is filled between two adjacent heat-conducting components; perforated baffles are also provided on both sides of the heating component along its length, and both the heat-conducting component and the desiccant material are placed between the two perforated baffles, with filter felt provided on the facing surfaces of the two perforated baffles; an elastic element is provided between the perforated baffle on one side and the corresponding end cap.

10. The dryer as claimed in claim 8, characterized in that, The desiccant material is filled between two adjacent heat-conducting components; perforated baffles are also provided on both sides of the heating component along its length, and both the heat-conducting component and the desiccant material are disposed between the two perforated baffles. Filter felt is provided on the opposing surfaces of the two perforated baffles and on at least one side surface of the heat-conducting component; an elastic element is provided between one of the perforated baffles and the corresponding end cap.

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