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CN-122006434-A - Compressed air drying device, air supply system and vehicle

CN122006434ACN 122006434 ACN122006434 ACN 122006434ACN-122006434-A

Abstract

The application provides a compressed air drying device, an air supply system and a vehicle, wherein the device comprises a drying cylinder body and a drying component, the drying component is arranged inside and/or outside the drying cylinder body, an air inlet end of the drying cylinder body is communicated with an air outlet end of an air compressor in an automobile air suspension system, the air outlet end of the drying cylinder body is communicated with an air outlet of the air supply system, the drying component comprises one or more of a condensing pipe, a throttling device, an isolating device, a water collecting tank and a buffer cavity, and the compressed air drying device, the air supply system and the vehicle can enable the drying device to have the characteristics of no drying agent, no regeneration and stable drying effect, optimize the structure of the drying device, improve the drying effect of the drying device and ensure the operation safety and stability of the drying device in different scenes. The drying device can be used for adapting to the compressed air of the air supply system for the automobile air suspension under the working condition of full temperature range.

Inventors

  • LIU WEI
  • XU CHENCHENG
  • CAO YE
  • YUE MING

Assignees

  • 安美科(安徽)汽车电驱有限公司
  • 安美科(上海)汽车技术有限公司

Dates

Publication Date
20260512
Application Date
20260408

Claims (10)

  1. 1. The compressed air drying device is characterized by comprising a drying cylinder body (1) and a drying assembly (2), wherein the drying assembly (2) is arranged inside and/or outside the drying cylinder body (1), an air inlet end of the drying cylinder body (1) is communicated with an air outlet end of an air compressor in an automobile air suspension system, an air outlet end of the drying cylinder body (1) is communicated with an air outlet of an air supply system, and the drying assembly (2) comprises one or more of a condensing pipe (21), a throttling device (22), an isolating device (23), a water collecting tank (24) and a buffer cavity (25).
  2. 2. A compressed air drying apparatus according to claim 1, wherein the throttle device (22) is a variable-diameter throttle device, and the air inlet pipe diameter of the throttle device (22) is larger than the air outlet pipe diameter.
  3. 3. A compressed air drying apparatus according to claim 2, characterized in that the drying assembly (2) comprises a throttling means (22), at least one throttling means (22) being provided.
  4. 4. A compressed air drying device according to claim 3, wherein the drying component (2) comprises a condensing tube (21), a throttling device (22), an isolating device (23), a water collecting tank (24) and a buffer cavity (25), wherein the condensing tube (21), the throttling device (22), the isolating device (23), the water collecting tank (24) and the buffer cavity (25) are all arranged one, one end of the condensing tube (21) is communicated with one end of the water collecting tank (24) and one end of the buffer cavity (25) through the throttling device (22) and the isolating device (23) respectively, the other end of the condensing tube (21) is communicated with an air inlet of the drying cylinder (1), the other end of the water collecting tank (24) is communicated with a water outlet (11) on the side wall of the drying cylinder (1), and the other end of the buffer cavity (25) is communicated with an air outlet of the drying cylinder (1).
  5. 5. A compressed air drying device according to claim 3, wherein the drying component (2) is a throttling device (22), an isolating device (23) and a water collecting tank (24), one end of the throttling device (22) is communicated with the air inlet of the drying cylinder (1), the other end of the throttling device (22) is respectively communicated with one end of the water collecting tank (24) and a water outlet (11) on the side wall of the drying cylinder (1) through the isolating device (23), and the other end of the water collecting tank (24) is communicated with the water outlet (11) on the side wall of the drying cylinder (1).
  6. 6. A compressed air drying apparatus according to claim 5, wherein two throttle devices (22) are provided, one end of one throttle device (22) being in communication with the air inlet of the drying cylinder (1), and the other end of one throttle device (22) being in communication with the isolating device (23) via the other throttle device (22).
  7. 7. A compressed air drying apparatus according to claim 1, wherein the condensing duct (21) is any one or more types of condensing duct of the spiral type, the tube-in-tube type, the parallel flow type, the plate-fin type, the sleeve type.
  8. 8. The compressed air drying device according to claim 1, wherein the isolation device (23) comprises a polymer wire mesh, n layers of polymer wire mesh are arranged, n is a positive integer, n layers of polymer wire mesh are overlapped to form the isolation device (23), and the outer side wall of the isolation device (23) is attached to the inner side wall of the drying cylinder (1).
  9. 9. An air supply system, characterized in that the system comprises a compressed air drying apparatus according to any one of claims 1-8, said apparatus being located in the system.
  10. 10. A vehicle comprising a compressed air drying apparatus according to any one of claims 1 to 8, said apparatus being mounted on said vehicle.

Description

Compressed air drying device, air supply system and vehicle Technical Field The invention relates to the technical field of vehicles, in particular to a compressed air drying device, an air supply system and a vehicle. Background In an automobile air suspension system, the drying treatment of compressed air is a key for ensuring the normal operation of components such as a suspension valve body, an air bag, a pipeline and the like, the drying treatment of high-temperature and high-humidity compressed air output by an air compressor is generally carried out by adopting a drying agent type drying cylinder in the prior art, and the core of the drying agent type air suspension system is used for removing water vapor in the air by means of the physical adsorption effect of adsorption type drying agents such as molecular sieves, silica gel and the like. The existing drying agent type drying cylinder has the technical defects that firstly, the drying agent needs to be regenerated through back blowing of compressed air after being adsorbed and saturated, precious compressed air is wasted, the work load of an air compressor and the energy consumption of the whole vehicle are increased, the regeneration process is not thorough, the drying efficiency is greatly reduced under low load, secondly, the drying agent is easily polluted by oil mist and particle impurities in air output air flow of the air compressor, adsorption pores are blocked and irreversibly deactivated, meanwhile, the drying agent is influenced by jolt, air flow impact and temperature change in running of an automobile for a long time, the drying agent is easily pulverized and broken, produced particles enter a suspension air channel to cause valve body clamping and air bag leakage, thirdly, the adsorption efficiency of the drying agent is suddenly reduced under the low-temperature environment, water vapor is easily condensed and frozen in the air channel, meanwhile, a drain outlet of the drying agent is easily frozen and blocked, and the failure rate of the drying agent is extremely high under the northern low-temperature working condition. Therefore, research on how to improve the drying effect of the drying device on the premise of avoiding the use of the drying agent has important significance. The patent CN203899424U discloses an energy-saving treatment system for high-flow compressed air, which comprises a buffer tank and an adsorption dryer which are sequentially connected with an air compressor, wherein a pre-cooler and a gas-water separator are arranged between the buffer tank and the adsorption dryer. Compression heat in the air compression process is mainly discharged through circulating cooling water of a cooling tower, so that the load of a water chilling unit is reduced, and the system is more energy-saving. The dryer in this system does not yet have a dryer with adsorption function and the use of a desiccant is not avoided. Disclosure of Invention In view of the above, the present invention aims to provide a compressed air drying device, an air supply system and a vehicle, so as to solve the problems that in the prior art, in an automotive air suspension system, a drying agent type drying cylinder is generally adopted in the drying treatment of compressed air, and the drying effect of compressed air in the system is poor due to the phenomena of pollution or saturation of a drying agent, so that the drying device has the characteristics of no drying agent, no regeneration and stable drying effect, and the structural arrangement of the drying device can be optimized, the drying effect of the drying device is improved, and the operation safety and stability of the drying device in different situations are ensured. In order to achieve the above purpose, the technical scheme of the invention is realized as follows: The invention relates to a compressed air drying device, an air supply system and a vehicle, wherein the compressed air drying device comprises a drying cylinder body and a drying assembly; the drying assembly is arranged inside and/or outside the drying cylinder, the air inlet end of the drying cylinder is communicated with the air outlet end of the air compressor in the automobile air suspension system, the air outlet end of the drying cylinder is communicated with the air outlet of the air supply system, and the drying assembly comprises any one or more of a condensing pipe, a throttling device, an isolating device, a water collecting tank and a buffer cavity. Further, the throttling device is a reducing throttling device, and the air inlet pipe diameter of the throttling device is larger than the air outlet pipe diameter. Further, the drying assembly comprises a throttle device, at least one throttle device being provided. The drying assembly comprises a condensing pipe, a throttling device, an isolating device, a water collecting tank and a buffer cavity, wherein the condensing pipe, the throttling device, the isolating device,