Electric heating dryer with helical heat conducting structure

Abstract

The utility model relates to air suspension gas supply system technical field discloses an electric heating dryer with spiral heat conduction structure, including dryer casing, the front end cover and rear end cover of setting at its both ends, the inside of dryer casing forms dry chamber, heating rod is fixed in dry chamber, and the outer periphery distribution of heating rod has drying agent drying subassembly, and drying agent drying subassembly includes the spiral heat conduction sleeve of sleeving in the outer periphery of heating rod and sets up in dry chamber and distributes in the outer periphery of spiral heat conduction sleeve drying agent, and spiral heat conduction sleeve at least includes one spiral part extending to dry chamber inner wall. The utility model discloses the use of spiral heat conduction structure effectively increased the heating area of drying agent, has prolonged the heating path of back blowing gas, the disturbance effect is produced to the airflow through spiral air passage, and the heating temperature of dry chamber edge gas and drying agent is balanced, and the regeneration conversion efficiency of overall drying agent is improved.

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 in particular to an electrically heated dryer with a spiral heat-conducting structure. Background Technology

[0002] Electric heating dryers are widely used in industrial dehumidification and gas purification applications. They generate heat through heating rods to regenerate saturated desiccants. However, existing electric heating dryers have limited heat transfer area between the heating rods and the desiccant, resulting in heat concentration around the periphery of the heating rods and insufficient heating of the desiccant at the edges of the drying chamber, leading to low regeneration efficiency. Furthermore, the straight airflow path within the drying chamber further exacerbates the problem of uneven heating of the desiccant.

[0003] Therefore, there is an urgent need for an electrically heated dryer that can change the airflow path to achieve uniform heating. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an electric heating dryer with a spiral heat conduction structure. The spiral heat conduction expands the heat transfer area while guiding and changing the airflow path, so that the drying chamber is heated evenly and the desiccant conversion efficiency is improved.

[0005] To achieve the above technical objectives, this application provides the following technical solution: an electrically heated dryer with a spiral heat-conducting structure, comprising a dryer shell, a front end cover and a rear end cover disposed at both ends thereon, a drying chamber formed inside the dryer shell, a heating rod fixed inside the drying chamber, and a desiccant drying assembly distributed around the outer periphery of the heating rod, the desiccant drying assembly comprising a spiral heat-conducting sleeve fitted around the outer periphery of the heating rod and a desiccant disposed inside the drying chamber and distributed around the outer periphery of the spiral heat-conducting sleeve; the spiral heat-conducting sleeve comprises at least one spiral component extending toward the inner wall of the drying chamber.

[0006] According to this utility model, the spiral heat-conducting sleeve further includes a cylindrical body assembled on the outer periphery of the heating rod by a structural fit and a spiral component extending in a spiral form toward the inner wall of the drying chamber on the surface of the cylindrical body.

[0007] According to this utility model, the cylinder body and the heating rod are integrally formed.

[0008] According to this utility model, the spiral component is distributed along the outer periphery of the cylinder body in a form including but not limited to single spiral, double spiral, and multi-spiral forms.

[0009] According to this utility model, the spiral component is further made of corrosion-resistant and thermally conductive metal or non-metallic material.

[0010] According to this utility model, the spiral component consists of multiple spiral blades distributed along the outer periphery of the cylinder body, with the multiple spiral blades spaced apart along the axial direction of the cylinder body, and the desiccant material filling between two adjacent spiral blades.

[0011] According to this utility model, perforated baffles are further provided on both sides of the heating rod along its length, and the desiccant drying component is disposed between the two perforated baffles.

[0012] According to this utility model, further, filter felt is provided on the opposing surfaces of the two perforated baffles.

[0013] According to this utility model, an elastic element is further provided between the perforated baffle at one end and the rear end cover. One end of the elastic element is fixedly connected to the perforated baffle, and the other end is connected to the rear end cover. When the rear end cover is fastened, the elastic element is in a compressed state.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The use of the spiral heat-conducting structure of this invention effectively increases the heating area of ​​the desiccant and extends the heating path of the backflushing gas; the airflow generates a disturbance effect through the spiral air passage, which balances the heating temperature of the gas and desiccant at the edge of the drying chamber and improves the overall regeneration and conversion efficiency of the desiccant.

[0015] The spiral heat-conducting sleeve of this utility model can be directly fitted onto the outer circumference of the heating rod, and the installation steps are simple. At the same time, by using the perforated baffles set at both ends of the heating rod, combined with the elastic element that connects one end to the rear end cover and the other end to the heating rod, the rear end cover can be fastened to form a stable pre-tightening and fixation of the desiccant, effectively preventing particle movement and impact damage. Attached Figure Description

[0016] 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 an 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 rod; 3-desiccant drying assembly; 31-filter felt; 32-perforated baffle; 33-desiccant; 34-spiral heat-conducting sleeve; 341-cylinder body; 342-spiral component; 4-front end cover; 5-rear end cover; 6-elastic component. Detailed Implementation

[0017] 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.

[0018] like Figure 1a , 1b As shown in Figure 2, this application provides an electric heating dryer with a spiral heat-conducting structure, including a dryer shell 1, a front end cover 4 and a rear end cover 5 disposed at both ends thereon; the dryer shell 1 is cylindrical and has a drying chamber formed inside, the heating rod 2 is fixed along the axis of the drying chamber, and the outer periphery of the heating rod 2 is distributed with a desiccant drying component 3. The desiccant drying assembly 3 includes a spiral heat-conducting sleeve 34 fitted around the heating rod 2 and desiccant 33 disposed within the drying chamber and distributed around the spiral heat-conducting sleeve 34. The spiral heat-conducting sleeve 34 includes a cylinder body 341 and a spiral component 342 whose inner end is connected to the cylinder body 341 and whose outer end extends towards the inner wall of the drying chamber. The spiral component 342 extends towards the inner wall of the drying chamber to transfer heat to areas within the drying chamber farther from the heating rod 2, effectively improving the heat conduction range and optimizing the heat conduction efficiency. Furthermore, the curved surface design of the spiral component 342 not only increases the contact area between the spiral heat-conducting sleeve 34 and the desiccant 33, providing uniform heating, but also extends the heating path of the backflushing gas. The airflow through the spiral passage of the spiral component 342 generates a disturbance effect, balancing the heating temperature of the gas and desiccant at the edge of the drying chamber, thereby improving the overall regeneration and conversion efficiency of the desiccant. Optionally, the spiral component 342 is made of a corrosion-resistant metal material, preferably stainless steel. The spiral component 342 is a single spiral distributed along the outer circumference of the cylindrical body 341, but a double spiral or multi-spiral form can also be selected. The dryer can be a single-cylinder dryer with a single drying chamber, or it can be configured into a multi-cylinder dryer by series and parallel connection.

[0019] Specifically, the cylindrical body 341 of the spiral heat-conducting sleeve and the heating rod 2 are preferably in a transition fit, which reduces the thermal resistance between the heating rod and the heat-conducting structure and improves the heat transfer efficiency while facilitating assembly; the outer edge of the spiral component 342 of the spiral heat-conducting sleeve and the inner wall of the drying chamber are in a clearance fit, which facilitates structural installation.

[0020] In the embodiments of this application, such as Figure 1a and Figure 1b As shown, the spiral component 342 consists of multiple spiral blades distributed along the outer periphery of the cylinder body 341. The multiple spiral blades are spaced apart along the axial direction of the cylinder body 341, and the desiccant material 33 is filled between two adjacent spiral blades.

[0021] Perforated baffles 32 are provided on both sides along the length of the heating rod 2. The spiral heat-conducting sleeve 34 and the desiccant 33 are both positioned between the two perforated baffles 32. Filter felt 31 is provided on the facing surfaces of the two perforated baffles 32. The perforated baffles 32 allow the heating rod 2 to pass through while restricting the axial movement of the spiral heat-conducting sleeve 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 squeezing force applied to the elastic element 6 by the front end cap 4, provide a continuous axial preload to the internal assembly of desiccant 33 and heat-conducting component 34, preventing desiccant particles from moving and impacting and causing damage. The elastic element 6 is a spiral spring. The perforated baffle 32 is a circular stainless steel sheet with multiple vent holes on its surface. The diameter of the vent holes is smaller than the diameter of the desiccant 33, allowing ventilation while preventing the desiccant 33 from leaking out of the perforated baffle 32. The filter felt 31 is made of optional glass fiber material and is bonded to the surface of the perforated baffle 32 by the pressure of the desiccant.

[0022] The working principle of this utility model is as follows: The cylindrical body 341 of the spiral heat-conducting sleeve is coaxially fitted around the outer periphery of the heating rod 2. A filter felt 31 and a perforated baffle 32 are placed at one axial end of the heating rod 2, and then a desiccant 33 is filled. After filling, a filter felt 31 and a perforated baffle 32 are placed at the other end of the heating rod 2. Then, one end of the elastic member 6 is pressed against the perforated baffle 32 at the outer end, and the other end is pressed against the rear end cover 5 to complete the assembly.

[0023] During operation, the heat generated by the heating rod 2 is transferred to the spiral component 342 through the cylinder body 341. The spiral component 342 evenly transfers the heat to the surrounding desiccant 33. At the same time, after the backflushing gas enters the drying chamber, it flows along the spiral air passage formed by the spiral component 342, generating disturbance, so that the gas and the desiccant 3 are fully contacted and heated evenly, ultimately achieving efficient regeneration of the desiccant 3.

[0024] 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. An electrically heated dryer with a spiral heat-conducting structure, comprising a dryer shell, a front end cover and a rear end cover disposed at both ends thereon, a drying chamber formed inside the dryer shell, a heating rod fixed inside the drying chamber, and a desiccant drying assembly distributed around the outer periphery of the heating rod, characterized in that, The desiccant drying assembly includes a spiral heat-conducting sleeve fitted around the heating rod and a desiccant disposed inside the drying chamber and distributed around the spiral heat-conducting sleeve; the spiral heat-conducting sleeve includes at least one spiral component extending toward the inner wall of the drying chamber.

2. The electric heating dryer having a spiral heat conducting structure according to claim 1, wherein The spiral heat-conducting sleeve includes a cylinder body assembled with the heating rod through a structural fit, and a spiral component extending in a spiral shape from the surface of the cylinder body toward the inner wall of the drying chamber.

3. The electric heating dryer having a spiral heat conducting structure according to claim 2, wherein The cylinder body and the heating rod are integrally formed.

4. The electric heating dryer having a spiral heat conducting structure according to claim 2, wherein The spiral component is distributed along the outer periphery of the cylinder body in forms including but not limited to single spiral, double spiral, and multi-spiral forms.

5. The electric heating dryer having a spiral heat conducting structure according to claim 1, wherein The spiral component is made of corrosion-resistant, thermally conductive metal or non-metallic material.

6. The electric heating dryer having a spiral heat conducting structure according to claim 2, wherein The spiral component consists of multiple spiral blades distributed along the outer periphery of the cylinder body. The multiple spiral blades are spaced apart along the axial direction of the cylinder body, and the desiccant material is filled between two adjacent spiral blades.

7. The electric heating dryer having a spiral heat conducting structure according to claim 1, wherein The heating rod is also provided with perforated baffles on both sides along its length, and the desiccant drying component is disposed between the two perforated baffles.

8. The electric heating dryer having a spiral heat conducting structure according to claim 7, wherein The opposing surfaces of the two perforated baffles are each provided with filter felt.

9. The electric heating dryer having a spiral heat conducting structure according to claim 8, wherein An elastic element is provided between the perforated baffle and the rear cover at one end. One end of the elastic element is fixedly connected to the perforated baffle, and the other end is connected to the rear cover. When the rear cover is fastened, the elastic element is in a compressed state.

Images