Air drying tank for air suspension and air spring air supply system

Abstract

The utility model discloses an air suspension air drying tank and an air spring air supply system, the air drying tank comprises a tank body, an end cover and a drying agent, the upper end part of the tank body is provided with an opening, the end cover is covered on the opening of the tank body, a drying cavity for placing the drying agent is formed in the tank body, at least part of the end cover extends into the drying cavity, the part is an extension section, and the end cover is provided with an air spring. The air drying tank further comprises a heating assembly arranged in the extending section. The heating assembly is arranged in the tank body, the heating assembly is started to heat the drying cylinder during exhausting, absorbed moisture can be more rapidly volatilized under the condition that the drying agent is heated, and at the moment, more water vapor can be brought out of the drying agent in cooperation with exhausted gas, so that the service life of the drying system with the reproducible characteristic is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of air spring accessories, and specifically relates to an air drying canister for air suspension and an air spring air supply system. Background Technology

[0002] Currently, air compressor desiccants use renewable materials. During the inflation process, they absorb moisture from the air. During exhaust, the compressed gas backflushing can remove some of the moisture absorbed by the desiccant during inflation. However, the amount of moisture removed during exhaust is less than the amount absorbed, which significantly reduces the service life of the drying system. To address this issue, patent application CN117644749A proposes installing a heating resistance wire inside the drying tank. However, it does not provide a specific implementation method, and the heating resistance wire is not suitable for directly heating the desiccant inside the drying tank. Therefore, how to achieve desiccant heating is a pressing problem that needs to be solved. Summary of the Invention

[0003] The purpose of this invention is to provide an air drying canister for air suspension, which uses an end cap to install a heating component, thereby heating the desiccant and improving the service life of the air drying canister.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an air drying can for air suspension, comprising: a can body with an opening at the upper end, an end cap covering the opening of the can body, and a desiccant, wherein a drying chamber for placing the desiccant is formed in the can body, and at least part of the end cap extends into the drying chamber, the part being an extension section, and the air drying can also include a heating component disposed in the extension section.

[0005] In another embodiment, the air drying can also include a plug electrically connected to the heating component, which starts heating when the plug is powered on.

[0006] In another embodiment, the plug is electrically connected to the heating assembly via a wire disposed within the end cap.

[0007] In another embodiment, the heating component is a PCD heating element.

[0008] In another embodiment, the air drying can includes a clamping plate sleeved on the extension section and capable of sliding up and down inside the can, and a compression spring disposed between the lower end face of the end cap and the clamping plate and sleeved on the extension section. The clamping plate presses the desiccant under the push of the compression spring. The extension section not only isolates the desiccant and the heating component but also guides the compression spring.

[0009] In another embodiment, the tank body is provided with a first air hole and a second air hole, and the tank body is provided with a guide plate for extending the flow path of airflow in the drying chamber. When air needs to be replenished, the air enters the drying tank through the first air hole and flows to the second air hole after passing through the gap between the guide plate and the tank body, and then flows into the storage tank. When it is necessary to accelerate the discharge of moisture in the storage tank or water vapor in the drying tank, the airflow in the storage tank enters the drying tank through the second air hole and flows to the first air hole after passing through the gap between the guide plate and the tank body, and then flows out of the drying tank into the atmosphere.

[0010] In another embodiment, the air drying tank includes a temperature sensor disposed on the side wall of the tank body, and a temperature controller electrically connected to the temperature sensor and the heating component. When heating is required, the temperature controller starts the heating component to heat. When the temperature of the temperature sensor reaches the set upper temperature limit, the temperature controller stops the heating component to heat.

[0011] In another embodiment, the guide plate divides the drying chamber into a first chamber near the first air hole and a second chamber near the second air hole, and the extension section includes a first section disposed in the first chamber and a second section disposed in the second chamber.

[0012] This utility model also provides an air spring air supply system, which includes an air storage tank, an air drying tank, a pipeline connecting the air storage tank and the air drying tank, and a humidity sensor for detecting the humidity inside the air storage tank, wherein the air drying tank is any of the air drying tanks described above.

[0013] In another embodiment, the air spring gas supply system further includes a heating section disposed on the pipeline for heating the gas in the pipeline, and the heating section and the heating assembly both use PCD heating elements.

[0014] The beneficial effects of this invention are as follows: by setting a heating component inside the tank, the heating component is activated to heat the drying cylinder when exhausting the gas. Under heating conditions, the moisture absorbed by the desiccant will evaporate more quickly. At this time, in conjunction with the exhaust gas, more water vapor can be carried out of the desiccant, thereby increasing the service life of the renewable drying system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention (exhaust state, arrows indicate the direction of gas flow);

[0016] Figure 2 This is a schematic diagram of the structure of this utility model (gas replenishment state, arrows indicate the direction of gas flow). Detailed Implementation

[0017] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings:

[0018] like Figure 1-2 As shown, the air spring air supply system includes an air storage tank 1, an air drying tank 2, a pipeline 3 connecting the air storage tank 1 and the air drying tank 2, a humidity sensor 4 for detecting the humidity inside the air storage tank 1, and a heating unit 5 installed on the pipeline 3 for heating the gas inside the pipeline 3.

[0019] The suspended air drying canister 2 includes: a canister 6 with an opening at the upper end, an end cap 7 covering the opening of the canister 6, a heating component 8, and a desiccant 9. The desiccant 9 can be a renewable desiccant such as silica-alumina gel. A drying chamber for placing the desiccant 9 is formed inside the canister 6. At least part of the end cap 7 extends into the drying chamber, and this part is an extension section. The heating component 8 is located in the extension section. A first air hole A1 and a second air hole A2 are provided on the canister 6. A guide plate is provided inside the canister 6 to extend the flow path of the airflow in the drying chamber.

[0020] The air drying chamber 2 also includes a plug 10 that is electrically connected to the heating assembly 8. When the plug 10 is powered on, the heating assembly 8 begins to heat. The plug 10 is electrically connected to the heating assembly 8 via a wire located inside the end cover 7. Both the heating section 5 and the heating assembly 8 use PCD heating elements.

[0021] The air drying canister 2 includes a clamping plate 11 sleeved on the extension section and capable of sliding up and down inside the canister, and a compression spring 12 located between the lower end face of the end cover 7 and the clamping plate 11 and sleeved on the extension section. The clamping plate 11 presses the desiccant 9 under the push of the compression spring 12. The clamping plate 11 has a through hole for airflow to pass through. The extension section not only isolates the desiccant 9 and the heating component 8, but also guides the compression spring 12.

[0022] The air drying tank 2 includes a temperature sensor 13 located on the side wall of the tank body 6, and a temperature controller 14 electrically connected to the temperature sensor 13 and the heating component 8. When the humidity sensor 4 detects that the humidity of the gas in the storage tank 1 is too high, it needs to be heated. At this time, the temperature controller 14 starts the heating component 8 to heat. When the temperature of the temperature sensor 13 reaches the set upper temperature limit, the temperature controller 14 stops the heating component 8 from heating.

[0023] The guide plate divides the drying chamber into a first chamber B1 near the first air hole A1 and a second chamber B2 near the second air hole A2. The extension section includes a first section C1 located in the first chamber B1 and a second section C2 located in the second chamber B2.

[0024] The principle of this invention is as follows: When air needs to be replenished, air enters the drying tank through the first air hole A1 and flows through the gap between the guide plate and the tank body 6 to the second air hole A2, and then flows into the air storage tank 1; when exhausting, the heating component 8 is activated to heat the drying cylinder. Under heating, the moisture absorbed by the desiccant 9 will evaporate more quickly. At this time, the airflow in the air storage tank 1 enters the drying tank through the second air hole A2 and flows through the gap between the guide plate and the tank body 6 to the first air hole A1, and then flows out of the drying tank into the atmosphere. This can carry more water vapor out of the desiccant 9, thereby increasing the service life of the regenerative drying system.

[0025] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. An air drying canister for air suspension, comprising: The air drying can has an opening at the upper end, an end cap covering the opening of the can, and a desiccant. A drying chamber for placing the desiccant is formed inside the can. The end cap extends at least partially into the drying chamber, and this part is an extension section. The air drying can also includes a heating component disposed within the extension section.

2. The air drying canister for air suspension according to claim 1, characterized in that: The air drying can also include a plug that is electrically connected to the heating component. When the plug is connected to a power source, the heating component begins to heat.

3. The air drying canister for air suspension according to claim 2, characterized in that: The plug is electrically connected to the heating assembly via a wire located inside the end cap.

4. The air drying canister for air suspension according to claim 1, characterized in that: The heating element is a PCD heating element.

5. The air drying canister for air suspension according to claim 1, characterized in that: The air drying can includes a clamping plate sleeved on the extension section and capable of sliding up and down inside the can, and a compression spring disposed between the lower end face of the end cap and the clamping plate and sleeved on the extension section. The clamping plate presses the desiccant under the push of the compression spring.

6. The air drying canister for air suspension according to claim 1, characterized in that: The tank body is provided with a first air hole and a second air hole, and the tank body is provided with a guide plate for extending the flow path of airflow in the drying chamber.

7. The air drying canister for air suspension according to claim 1, characterized in that: The air drying tank includes a temperature sensor disposed on the side wall of the tank body and a temperature controller electrically connected to the temperature sensor and the heating assembly.

8. The air drying canister for air suspension according to claim 6, characterized in that: The guide plate divides the drying chamber into a first chamber near the first air hole and a second chamber near the second air hole, and the extension section includes a first section located in the first chamber and a second section located in the second chamber.

9. A spring-loaded air supply system, comprising an air storage tank, an air drying tank, and a pipeline connecting the air storage tank and the air drying tank, characterized in that: The air drying canister is any one of the air drying canisters described in claims 1-8.

10. The air spring supply system according to claim 9, characterized in that: The air spring gas supply system also includes a heating section installed on the pipeline for heating the gas in the pipeline.

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