Electric heating dryer with spiral heat conduction structure

Abstract

The invention relates to the technical field of air suspension air supply systems, and discloses an electric heating dryer with a spiral heat conduction structure, which comprises a dryer shell, a drying cavity is formed in the dryer shell, a heating rod is fixed in the drying cavity, and the electric heating dryer comprises a spiral part arranged on the peripheral surface of the heating rod. The spiral part extends towards the inner wall of the drying cavity. By using the spiral heat conduction structure, the heating area of a drying agent is effectively increased, and the heating path of blowback gas is prolonged; the airflow generates a disturbance effect through the spiral air channel, the heating temperature of the edge air and the drying agent in the drying cavity is balanced, and the regeneration conversion efficiency of the overall drying agent is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air suspension gas supply system, in particular to the drying and regeneration of gas in the gas circuit of air suspension gas supply system, and specifically relates to an electric heating dryer with a spiral heat conduction structure. BACKGROUND

[0002] The electric heating dryer is widely used in industrial dehumidification, gas purification and other scenes. The electric heating dryer generates heat through a heating rod to regenerate the saturated drying agent. The heat transfer area between the heating rod and the drying agent of the existing electric heating dryer is limited, and the heat is concentrated around the heating rod. The drying agent at the edge of the drying chamber is not heated enough, resulting in low regeneration efficiency. Moreover, the airflow path in the drying chamber is straight, which further exacerbates the uneven heating of the drying agent.

[0003] Therefore, there is an urgent need for an electric heating dryer that changes the airflow path to achieve uniform heating. SUMMARY

[0004] To solve the above technical problems, the purpose of the present application is to provide an electric heating dryer with a spiral heat conduction structure, which expands the heat transfer area through a spiral heat conduction structure and changes the airflow path, so that the drying chamber is uniformly heated and the drying agent conversion efficiency is improved.

[0005] To achieve the above technical purpose, the present application realizes the following technical scheme: an electric heating dryer with a spiral heat conduction structure, including a dryer housing, a drying chamber formed inside the dryer housing, a heating rod fixed in the drying chamber, including a spiral component arranged on the outer surface of the heating rod, the spiral component extending towards the inner wall of the drying chamber.

[0006] According to the present application, further, a cylinder body is sleeved on the outer periphery of the heating rod, and the surface of the cylinder body extends a heat conduction structure in the form of a spiral towards the inner wall of the drying chamber.

[0007] According to the present application, further, the spiral component and the inner wall of the drying chamber are distributed with drying agent. According to the present application, further, the cylinder body and the heating rod are assembled by structural cooperation, or the cylinder body and the heating rod are integrally formed.

[0008] According to the present application, further, the spiral component is in the form of distribution along the outer periphery of the cylinder body, including but not limited to single spiral form, double spiral form, and multiple spiral form.

[0009] According to the present application, further, the spiral component is made of corrosion-resistant heat-conducting metal or non-metal material.

[0010] According to the application, further, the spiral part is a plurality of spiral pieces distributed along the outer periphery of the cylinder body, the plurality of spiral pieces are distributed along the axial direction of the cylinder body, and the desiccant is filled between two adjacent spiral pieces.

[0011] According to the application, further, the length direction of the heating rod is further provided with a hole baffle on both sides, and the desiccant drying assembly is arranged between the two hole baffles.

[0012] According to the application, further, the facing surfaces of the two hole baffles are both provided with filter felt.

[0013] According to the application, further, one end of the desiccator shell is connected with a rear end cover, the hole baffles and the rear end cover are provided with elastic members, one end of the elastic member is fixedly connected with the hole baffle, the other end is connected with the rear end cover, the rear end cover is buckled, and the elastic member is in a compressed state.

[0014] Compared with the prior art, the application has the following beneficial effects: The use of the spiral heat conduction structure effectively increases the heating area of the desiccant and prolongs the heating path of the back-blowing gas; the airflow passing through the spiral air duct produces a disturbance effect, balances the heating temperature of the gas and the desiccant at the edge of the drying chamber, and improves the overall regeneration conversion efficiency of the desiccant.

[0015] The spiral heat conduction sleeve can be directly sleeved on the outer periphery of the heating rod, and the installation steps are simple; meanwhile, through the hole baffles arranged at both ends of the heating rod, in combination with the elastic members connected with the rear end cover at one end and the heating rod at the other end, the buckling of the rear end cover can form stable pre-tightening and fixation of the desiccant, effectively avoiding the damage caused by the movement and impact of particles. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1a It is a structural schematic view of the first perspective of the heat conduction part of the application; Figure 1b It is a structural schematic view of the second perspective of the heat conduction part of the application; Figure 2 It is a structural schematic view of the embodiment of the heating rod heat conduction structure for the electric heating dryer of the application; In the drawings, 1 is a desiccator shell; 2 is a heating rod; 3 is a desiccant drying assembly; 31 is filter felt; 32 is a hole baffle; 33 is desiccant; 34 is a spiral heat conduction sleeve; 341 is a cylinder body; 342 is a spiral part; 4 is a front end cover; 5 is a rear end cover; 6 is an elastic member. DETAILED DESCRIPTION

[0017] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0018] As shown in Figure 1a , In the embodiments of the present application, as shown in 1b and 2, a drying device with a spiral heat conduction structure is provided, which comprises a drying device shell 1, a front end cover 4 and a rear end cover 5 arranged at two ends of the drying device shell 1. The drying device shell 1 is in a cylindrical shape, and a drying chamber is formed in the inside of the drying device shell 1. A heating rod 2 is fixed along the axis of the drying chamber. Dryer drying assemblies 3 are distributed around the outer periphery of the heating rod 2. The dryer drying assemblies 3 comprise a spiral heat conduction sleeve 34 sleeved around the outer periphery of the heating rod 2 and dryers 33 arranged in the drying chamber and distributed around the outer periphery of the spiral heat conduction sleeve 34. The spiral heat conduction sleeve 34 comprises a sleeve body 341 and a spiral component 342 connected to the inner end of the sleeve body 341 and extending to the inner wall of the drying chamber. The spiral component 342 extends to the inner wall of the drying chamber so as to transmit heat to the area far from the heating rod 2 in the drying chamber, effectively improves the heat conduction range, and optimizes the heat conduction efficiency. Moreover, the curved surface design of the spiral component 342 not only increases the contact area of the spiral heat conduction sleeve 34 and the dryers 33, provides uniform heating, but also prolongs the heating path of the back-blowing gas. The airflow passing through the spiral air duct of the spiral component 342 produces a disturbance effect, balances the heating temperature of the gas and the dryers at the edge of the drying chamber, and improves the regeneration conversion efficiency of the overall dryers. Optionally, the spiral component 342 is made of a corrosion-resistant metal material, preferably stainless steel. The spiral component 342 is in a single spiral form distributed around the outer periphery of the sleeve body 341, and can also be in a double spiral or multi-spiral form. The drying device can be a single-cylinder drying device with a single drying chamber, or a multi-cylinder drying device formed by series and parallel connection.

[0019] Specifically, the sleeve body 341 of the spiral heat conduction sleeve and the heating rod 2 are preferably in a transition fit, which reduces the thermal resistance of the heating rod and the heat conduction structure under the premise of facilitating assembly, and improves the heat transfer efficiency. The outer edge of the spiral component 342 of the spiral heat conduction sleeve and the inner wall of the drying chamber are in a gap fit, which facilitates the installation of the structure.

[0020] In the embodiments of the present application, as shown in Figure 1a and Figure 1b , the spiral component 342 is a plurality of spiral pieces distributed around the outer periphery of the sleeve body 341. The plurality of spiral pieces are distributed axially at intervals along the sleeve body 341, and the dryers 33 are filled between adjacent two spiral pieces.

[0021] The length direction of the heating rod 2 is further provided with a hole baffle 32, the spiral heat conducting sleeve 34 and the drying agent 33 are arranged between the two hole baffles 32, and the opposite surfaces of the two hole baffles 32 are provided with filter felt 31; the hole baffle 32 allows the heating rod 2 to pass through and limits the axial movement of the spiral heat conducting sleeve 34; the hole baffle 32 at one end is provided with an elastic element 6 between the shell end cover, and the extrusion force of the elastic element 6, the filter felt 31 and the hole baffle 32 combined with the front end cover 4 is applied to the elastic element 6, so that the continuous axial pre-tightening force is provided for the internal drying agent 33 and the heat conducting component 34 combination, and the dry agent is avoided from being damaged by movement and impact. The elastic element 6 is a spiral spring. The hole baffle 32 is a circular stainless steel sheet, and a plurality of air holes are formed on the surface of the hole baffle 32, the diameter of the air hole is smaller than the diameter of the drying agent 33, and the air hole avoids the drying agent 33 from leaking out of the hole baffle 32. The filter felt 31 can be made of glass fiber material and is adhered to the surface of the hole baffle 32 by the pressing force of the drying agent.

[0022] The working principle of the present application is as follows: The cylinder body 341 of the spiral heat conducting sleeve is coaxially sleeved on the outer periphery of the heating rod 2, the filter felt 31 and the hole baffle 32 are placed at one end of the heating rod 2 in the axial direction, then the drying agent 33 is filled, and after filling, the filter felt 31 and the hole baffle 32 are placed at the other end of the heating rod 2; one end of the elastic element 6 is abutted against the hole baffle 32 at the outer end, and the other end is abutted against the rear end cover 5 to complete the assembly.

[0023] During operation, the heat generated by the heating rod 2 is transmitted to the spiral component 342 through the cylinder body 341, and the spiral component 342 uniformly transmits the heat to the surrounding drying agent 33; at the same time, after the back-blowing gas enters the drying chamber, it flows along the spiral air duct formed by the spiral component 342, generates disturbance, makes the gas and the drying agent 3 fully contact and uniformly heated, and finally realizes efficient regeneration of the drying agent 3.

[0024] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An electric heating dryer having a spiral heat conducting structure, comprising a dryer housing, a drying chamber being formed inside the dryer housing, and a heating rod being fixed in the drying chamber, characterized in that, The spiral member is arranged on the outer circumferential surface of the heating rod and extends to the inner wall of the drying chamber.

2. An electric heating dryer having a spiral heat conducting structure as claimed in claim 1, wherein, The cylindrical body is sleeved on the outer circumference of the heating rod, and the surface of the cylindrical body extends to the inner wall of the drying chamber in a spiral form to form a heat conduction structure.

3. An electric heating dryer having a spiral heat conducting structure as claimed in claim 1, wherein, The drying agent is distributed between the spiral member and the inner wall of the drying chamber.

4. An electric heating dryer having a spiral heat conducting structure as set forth in claim 2, wherein The cylindrical body and the heating rod are assembled through structural cooperation or are integrally formed.

5. An electric heating dryer having a spiral heat conducting structure as defined in claim 2, wherein The spiral member is distributed along the outer circumference of the cylindrical body in the form of a single spiral, a double spiral or a plurality of spirals.

6. An electrically heated dryer having a spiral heat conducting structure as defined in claim 1, wherein, The spiral member is made of a corrosion-resistant heat-conducting metal or non-metal material.

7. An electric heating dryer having a spiral heat conducting structure as defined in claim 1, wherein The spiral member is a plurality of spiral pieces distributed along the outer circumference of the cylindrical body, the spiral pieces are axially spaced apart, and the drying agent is filled between adjacent two spiral pieces.

8. An electric heating dryer having a spiral heat conducting structure as defined in claim 1, wherein, The length direction of the heating rod is further provided with two hole baffles, and the drying agent drying assembly is arranged between the two hole baffles.

9. An electrically heated dryer having a spiral heat conducting structure as claimed in claim 8, wherein, The opposite surfaces of the two hole baffles are provided with filter felt.

10. An electrically heated dryer having a spiral heat conducting structure as defined in claim 9, wherein, One end of the elastic member is fixedly connected with the hole baffle, and the other end is connected with the rear end cover. The elastic member is in a compressed state.

Images