CN111821824A - Novel high-efficient car air dryer - Google Patents

Novel high-efficient car air dryer Download PDF

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Publication number
CN111821824A
CN111821824A CN202010812057.7A CN202010812057A CN111821824A CN 111821824 A CN111821824 A CN 111821824A CN 202010812057 A CN202010812057 A CN 202010812057A CN 111821824 A CN111821824 A CN 111821824A
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CN
China
Prior art keywords
inner container
cover
air
filter element
shell
Prior art date
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Pending
Application number
CN202010812057.7A
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Chinese (zh)
Inventor
齐李豹
张文杰
杨青龙
程卫国
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Hubei Kaidu Industrial Co ltd
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Hubei Kaidu Industrial Co ltd
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Publication date
Application filed by Hubei Kaidu Industrial Co ltd filed Critical Hubei Kaidu Industrial Co ltd
Priority to CN202010812057.7A priority Critical patent/CN111821824A/en
Publication of CN111821824A publication Critical patent/CN111821824A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04—Cleaning filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/28—Selection of materials for use as drying agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/002—Air treatment devices
    • B60T17/004—Draining and drying devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/116—Molecular sieves other than zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/20—Organic adsorbents

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

The invention provides a novel efficient automobile air dryer, which comprises a shell with a closed upper end, a bottom cover and a filter element, wherein the bottom cover is provided with an air inlet and a threaded bayonet connected with an external air pipeline; the inner container is arranged in the shell, an inner container cover and a connecting disc are arranged on the inner container, a downward extending part in the middle of the bottom of the connecting disc is sleeved outside a threaded bayonet of the bottom cover, an inner cavity of the inner container forms a drying agent storage cavity, a spring is clamped between the inner container cover and the shell, a channel communicated with the inner container is arranged on the inner container cover, an air channel is formed by a cavity between the inner container and the shell, a filter element is arranged at the upper part of the inner container and communicated with the inner cavity of the inner container, and a one-way bypass valve and an elastic one-way check valve block are correspondingly arranged on; the drying agent storage cavity is provided with a fixed rod in the vertical direction at the center, a spiral sheet is fixedly arranged on the fixed rod in a penetrating way, and the outline of the spiral sheet is adapted to the inner wall of the inner container. The invention can filter oil stain in compressed air, thoroughly remove moisture, ensure the braking performance of the automobile and improve the safety.

Description

Novel high-efficient car air dryer
Technical Field
The invention relates to the technical field of air dryers, in particular to a novel efficient automobile air dryer.
Background
The automobile air dryer is an indispensable part of an automobile, and is particularly equipped for some heavy-duty automobiles, and the automobile air dryer is used for drying compressed air from an automobile inflating pump so that moisture contained in the air cannot enter a braking system of the automobile through the air, thereby keeping the sensitivity and the effectiveness of the automobile braking system.
Because the oil pumping phenomenon of the domestic inflating pump is serious, the air discharged by the inflating pump contains oil stain and solid impurities besides water, and the drying agent in the ordinary automobile air dryer can only adsorb the water in the compressed air and cannot filter the oil mist in the compressed air in advance. Meanwhile, after the drying material in the air drying agent is contacted with oil stains, the function of drying moisture is lost, so that the drier is quickly out of work, the braking performance of the automobile is further influenced, and serious potential safety hazards exist; meanwhile, the service life of the drying agent is short, so that the maintenance cost is increased.
The patent application No. 201820380584.3, entitled "oil filter drying cylinder for air dryer" discloses a device for preventing moisture and particulate matter contained in compressed air from entering a pipeline system behind the dryer, which makes the compressed air firstly pass through a filter element to filter oil and then pass through a molecular sieve to adsorb moisture.
The inventor discovers that in the process of implementing the invention:
in the implementation of the technical scheme of 'an oil filtering and drying cylinder for an air dryer' with the patent application number of 201820380584.3, because the three-dimensional installation space of the dryer reserved in the design of the whole vehicle is fixed, namely the air dryer is limited by the installation space and cannot be designed too high, the height of the air dryer directly influences the height of the drying cylinder, the path of compressed air passing through a molecular sieve is shorter, and because the contact time of air in an air flow channel which is vertically up and down and the molecular sieve is relatively shorter, the moisture in the air enters a subsequent pipeline system without being completely absorbed, and the sensitivity and the effectiveness of an automobile braking system are influenced; simultaneously, because the resistance can increase behind the absorption a large amount of greasy dirt in the air dryer, lead to braking system's air feed pressure not enough, influence brake performance, bring the potential safety hazard, and when the blowback washs, because the greasy dirt is many, the cleaning speed is slow, lead to the blowback cleaning efficiency not high.
Disclosure of Invention
In order to solve the problems in the prior art, and ensure the air supply pressure and improve the safety performance on the premise of ensuring that the compressed air does not contain oil and moisture after passing through the air dryer, the invention provides a novel efficient automobile air dryer.
Therefore, the technical scheme of the invention is as follows: a novel high-efficiency automobile air dryer comprises a shell with a closed upper end, a bottom cover in threaded connection with the bottom of the shell and a filter element, wherein an air inlet is formed in the bottom cover, and a threaded bayonet connected with an external air pipeline is arranged in the middle of the bottom cover; be equipped with the inner bag in the shell, the inner bag top is equipped with inner bag lid, the bottom is equipped with the connection pad, the downward extension cover in the middle of the connection pad bottom is established outside the screw thread bayonet socket of bottom, the position of looks butt is equipped with the sealing washer, the inner bag inner chamber constitutes the drier and stores the chamber, the card is equipped with the spring between inner bag lid and the shell, the inner bag is covered to be equipped with and the communicating passageway of inner bag, cavity between inner bag and shell constitutes air passage, its characterized in that:
the filter element is arranged at the upper part of the inner container, a filter element installation cavity is extended from outside to inside at the upper part of the inner container and is preset, through holes are uniformly distributed at the outer wall and the upper part of the inner wall of the filter element installation cavity, the filter element is arranged in the filter element installation cavity, the top and the bottom of the filter element are respectively abutted against the bottoms of the inner container cover and the filter element installation cavity, and a sealing ring is arranged at the abutting part of the top and; a gas diffusion plate is erected at the top end of the inner wall of the filter element mounting cavity, a gap for gas to flow is formed between the gas diffusion plate and the inner container cover, and through holes for the gas to uniformly pass through are distributed in the gas diffusion plate;
the channel of the liner cover is also correspondingly provided with a one-way bypass valve and an elastic one-way check valve plate, the one-way bypass valve is used for controlling compressed air to enter the channel of the liner from the liner cover, and the elastic one-way check valve plate is used for controlling air flow to enter the air channel between the liner and the shell from the liner cover when the air dryer is subjected to back flushing cleaning;
a groove extending towards the inner part of the inner container is formed in the middle of the connecting disc, air outlet holes are uniformly distributed in the side wall of the groove, filter discs are distributed at the inner ends of the air outlet holes, and the groove is communicated with the threaded bayonet of the bottom cover; a cavity formed between the bottom surface of the connecting disc and the bottom cover, an air channel between the inner container and the shell and an air inlet on the bottom cover are communicated;
a fixing rod is arranged in the drying agent storage cavity and in the center between the gas diffusion plate and the connecting disc, a spiral sheet is fixedly arranged on the fixing rod in a penetrating mode, and the outer contour of the spiral sheet is matched with the size of the inner wall of the inner container.
Preferably, the one-way bypass valve is arranged in the center of the top of the inner container cover and comprises a cylindrical valve seat, the upper end of the cylindrical valve seat is provided with an inner edge extending towards the center, the lower end of the cylindrical valve seat is provided with an outward flange, and the outward flange forms an installation part of the spring between the inner container cover and the shell; a cylindrical air inlet valve seat is arranged in the valve seat, through holes are uniformly distributed on the wall of the air inlet valve seat, the upper end of the air inlet valve seat extends towards the center and is fixed on the upper end and the lower end of the inner edge of the valve seat through a U-shaped wrapping edge with an outward opening, an inward bending and upward inward flanging is arranged at the upper end and the lower end of the inner edge of the valve seat, a sealing gasket and a fixing plate for supporting the sealing gasket are arranged in an inner cavity of the air inlet valve seat in a sliding fit manner, the inward flanging at the lower end of the air inlet valve seat forms a spring mounting part between the fixing plate and the flanging, a compression spring is clamped on the spring; the inner container cover is provided with a bulge used for limiting the one-way bypass valve, the lower end of the air inlet valve seat is abutted against the inner side of the bulge on the inner container cover, and the inner container cover positioned right below the fixing plate is provided with a channel. The one-way bypass valve is ingenious in structure, low in manufacturing cost and convenient to install, can be opened under the pressure of airflow and reset through the compression spring, does not need to be controlled through other control systems, and is not easy to damage and easy to maintain.
Preferably, the inner side close to the end part of the elastic one-way check valve plate is clamped between the valve seat and the liner cover, the inner end of the elastic one-way check valve plate abuts against the outer side of the bulge of the liner cover, the outer end of the elastic one-way check valve plate extends outwards along the liner cover, the bottom of the outer end of the elastic one-way check valve plate is provided with a bulge, the corresponding liner cover is provided with a groove, and channels are uniformly distributed at the joint part of the liner cover and the elastic one-way check valve plate; when the elastic one-way check valve plate is in an open state, the outer end part of the elastic one-way check valve plate abuts against the inner wall of the shell to block the communication between the elastic one-way check valve plate and the one-way bypass valve. The elastic one-way check valve plate is simple in structure and convenient to install, can be opened under the air flow pressure and reset under the action of gravity, does not need to be controlled by other control systems, and is not easy to damage and easy to maintain.
Preferably, the drying agent is a molecular sieve, or silica gel, or cellulose particles, which all have a water-absorbing function.
Preferably, the elastic one-way check valve plate is made of rubber, so that the sealing performance of the elastic one-way check valve plate is good when the air dryer normally works, the opening pressure of the elastic one-way check valve plate is low when the air dryer reversely blows, and the reversely blown steam can be completely discharged out of the dryer.
Preferably, the filter element comprises an upper end cover, a lower end cover, a supporting framework and a filtering material, wherein the upper end cover and the lower end cover are made of metal or plastic, the supporting framework is made of metal or plastic on the inner side of the filter element, the supporting framework is provided with air inlet and outlet holes, and the filtering material is made of synthetic fiber with an oil absorption function, or non-woven fabric, or filtering paper, or the combination of the synthetic fiber, the non-woven fabric and the filtering paper, and has the function of absorbing oil stains and particle impurities in air passing through.
Has the advantages that: the invention can ensure the dryness and cleanness of the brake system, thereby ensuring the brake performance of the automobile and improving the safety of drivers.
The spiral plate is arranged in the inner container for guiding flow, so that the path of air passing through the drying agent is longer than that of the conventional air dryer, and filtered air is ensured to enter the drying agent to completely remove moisture and then enter other components;
the inner container cover is provided with the one-way bypass valve, compressed air firstly passes through the filter element and then enters the dryer for drying treatment and then enters a subsequent pipeline in normal work, but the resistance of the filter element is correspondingly increased as the amount of oil dirt and particle impurities absorbed by the filter element is increased more and more, at the moment, the one-way bypass valve is opened under certain pressure, and the compressed air enters the drying agent storage cavity for drying treatment through the one-way bypass valve, so that the defect of insufficient air supply pressure entering the braking system through the filter element is overcome, the braking performance is ensured, and potential safety hazards are eliminated;
the inner container cover is provided with the elastic one-way check valve plate, when the automobile automatically performs back flushing cleaning on the dryer, one part of air flow is back flushed through the filter element, the other part of air flow is opened through air pressure to form the elastic one-way check valve plate, comes out from the inner container cover to enter an air channel between the inner container side wall and the shell, and is back flushed, so that the back flushing cleaning efficiency is improved, and the cleaning effect is ensured.
Drawings
Fig. 1 is a front view of the present invention.
FIG. 2 is a schematic view of the installation of the one-way bypass valve and the elastic one-way check valve plate on the liner cover.
FIG. 3 is a schematic view of the one-way bypass valve of FIG. 2 in an open state.
Fig. 4 is a schematic view of the flow path of air during normal use of the present invention.
FIG. 5 is a schematic view showing the flow path of the air flow during the back flushing.
Shown in the figure: 1. a housing; 2. a bottom cover; 21. an air inlet; 22. a threaded bayonet; 3. a filter element; 4. an inner container; 41. a through hole; 5. an inner container cover; 51. a channel; 52. a protrusion; 53. a groove; 6. a connecting disc; 61. an air outlet; 62. a filter disc; 7. a spring; 8. a gas diffusion plate; 81. a through hole; 9. a one-way bypass valve; 91. a valve seat; 911. an inner edge; 912. flanging; 92. an air inlet valve seat; 921. a through hole; 922. u-shaped edge covering; 923. inward flanging; 93. sealing gaskets; 94. a fixing plate; 95. a compression spring; 10. an elastic one-way check valve plate; 101. a protrusion; 11. fixing the rod; 12. a spiral sheet.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, but the embodiment should not be construed as limiting the present invention.
The invention is shown in fig. 1 to 5:
a novel high-efficiency automobile air dryer comprises a shell 1 with a closed upper end, a bottom cover 2 in threaded connection with the bottom of the shell and a filter element 3, wherein the bottom cover 2 is provided with an air inlet 21, and the middle of the bottom cover is provided with a threaded bayonet 22 connected with an external air pipeline; the inner container 4 is arranged in the shell, the top of the inner container is provided with an inner container cover 5, the bottom of the inner container is provided with a connecting disc 6, a downward extending part in the middle of the bottom of the connecting disc is sleeved outside the threaded bayonet of the bottom cover, a sealing ring is arranged at the abutted part, an inner cavity of the inner container forms a drying agent storage cavity, drying agents are placed in the drying agent storage cavity, a spring 7 is clamped between the inner container cover and the shell, a channel communicated with the inner container is arranged on the inner container cover, and an air channel is formed by;
the filter element 3 is arranged at the upper part of the inner container 4, a filter element installation cavity is preset in the upper part of the inner container in an extending mode from outside to inside, through holes 41 are uniformly distributed in the outer wall and the upper part of the inner wall of the filter element installation cavity, the filter element is installed in the filter element installation cavity, the top and the bottom of the filter element are respectively abutted against the bottom of the inner container cover and the filter element installation cavity, and a sealing ring is arranged at the abutting part of the top and the; a gas diffusion plate 8 is erected at the top end of the inner wall of the filter element mounting cavity, a gap for gas to flow is formed between the gas diffusion plate and the inner container cover 5, and through holes 81 are uniformly distributed in the gas diffusion plate;
the channel of the liner cover 5 is also correspondingly provided with a one-way bypass valve 9 and an elastic one-way check valve plate 10, the one-way bypass valve 9 is used for controlling compressed air to enter the channel of the liner from the liner cover, and the elastic one-way check valve plate 10 is used for controlling air flow to enter the air channel between the liner and the shell from the liner cover when the air dryer is subjected to back flushing cleaning;
a groove extending towards the inner part of the inner container is formed in the middle of the connecting disc 6, air outlet holes 61 are uniformly distributed in the side wall of the groove, filter discs 62 are distributed at the inner ends of the air outlet holes, and the groove is communicated with the threaded bayonet of the bottom cover; a cavity formed between the bottom surface of the connecting disc 6 and the bottom cover 2, an air channel between the inner container 4 and the shell 1 and an air inlet 21 on the bottom cover 2 are communicated;
a fixing rod 11 is arranged in the drying agent storage cavity and in the center between the gas diffusion plate 8 and the connecting disc 6, a spiral sheet 12 is fixedly arranged on the fixing rod in a penetrating mode, and the outer contour of the spiral sheet is matched with the size of the inner wall of the inner container.
The one-way bypass valve 9 is arranged in the center of the top of the inner container cover 5 and comprises a cylindrical valve seat 91, the upper end of the cylinder is provided with an inner edge 911 extending towards the center, the lower end of the cylinder is provided with an outward flange 912, and the outward flange forms a mounting part of a spring between the inner container cover and the shell; a cylindrical air inlet valve seat 92 is arranged in the valve seat 91, through holes 921 are evenly distributed on the wall of the air inlet valve seat, the upper end of the air inlet valve seat extends towards the center and is fixed on the upper end and the lower end of the inner edge of the valve seat through a U-shaped wrapping edge 922 with an outward opening, an inward bending and upward inward flanging 923 is arranged at the upper end and the lower end of the inner edge of the valve seat, a sealing gasket 93 and a fixing plate 94 used for supporting the sealing gasket are arranged in the inner cavity of the air inlet valve seat in a sliding fit manner, the inward flanging at the lower end of the air inlet valve seat forms a spring mounting part between the fixing plate and the inward flanging, a compression spring 95 is clamped on the spring mounting; the inner container cover 5 is provided with a bulge 52 for limiting the one-way bypass valve, the lower end of the air inlet valve seat 92 abuts against the inner side of the bulge 52 on the inner container cover 5, and the inner container cover positioned right below the fixing plate 94 is provided with the channel 51. The one-way bypass valve is ingenious in structure, low in manufacturing cost and convenient to install, can be opened under the pressure of airflow and reset through the compression spring, does not need to be controlled through other control systems, and is not easy to damage and easy to maintain.
The inner side close to the end part of the elastic one-way check valve plate 10 is clamped between the valve seat 91 and the liner cover 5, the inner end of the elastic one-way check valve plate abuts against the outer side of the protrusion 52 of the liner cover, the outer end of the elastic one-way check valve plate extends outwards along the liner cover, the bottom of the outer end is provided with a protrusion 101, a groove 53 is arranged on the corresponding liner cover (the structure enables the one-way check valve plate to be tightly attached to the liner cover, meanwhile, the outer edge of the liner cover can prevent compressed air flow from directly blowing to the combining part of the one-way check valve plate and the outer end of the liner cover), and the channels 51 are uniformly distributed on the attaching part of the liner cover and the elastic one; when the elastic one-way check valve plate is in an open state, the outer end of the elastic one-way check valve plate abuts against the inner wall of the shell to block the communication between the air channel between the side wall of the inner container and the shell and the one-way bypass valve. The elastic one-way check valve plate is simple in structure and convenient to install, can be opened under the air flow pressure and reset under the action of gravity, does not need to be controlled by other control systems, and is not easy to damage and easy to maintain.
The desiccant adopts molecular sieve, silica gel or cellulose particles, and the materials have the water absorption function.
The elastic one-way check valve plate 10 is made of rubber, the sealing performance of the elastic one-way check valve plate is good when the air dryer normally works, the opening pressure of the elastic one-way check valve plate is low when the air dryer reversely blows, and the reverse blowing of water vapor can be completely discharged out of the dryer.
The filter element 3 is made of metal or plastic, the support frame is made of metal or plastic on the inner side of the filter element, the support frame is provided with air inlet and outlet holes, the filter material is made of synthetic fiber with an oil absorption function, or non-woven fabric, or filter paper, or the combination of the three, and has the function of absorbing oil stains and particle impurities in air passing through the filter material.
The working principle of the invention is as follows:
when compressed air enters the air dryer from an air inlet of the chassis, the compressed air sequentially passes through a cavity between the bottom surface of the connecting disc and the bottom cover and an air channel between the side wall of the inner container and the shell, under the action of the compressed air, the compressed air enters the drying agent storage cavity through the filter element, when the excessive oil absorption resistance of the filter element is too large, the compressed air reaches a certain pressure, the one-way bypass valve 9 can be opened (the sealing gasket and the fixing plate slide downwards under the action of air pressure and compress the spring), the compressed air can enter the drying agent storage cavity through the one-way bypass valve, two parts of air flow pass through the drying agent storage cavity through the spiral piece flow guide and come out of an air outlet hole of the connecting disc, pass through the thread bayonet and then enter a braking system. (shown in FIG. 4)
When the air dryer needs back flushing cleaning, air flow enters the drying agent storage cavity from the air outlet of the connecting disc through the threaded bayonet, the air flow is shunted at the upper part of the drying agent storage cavity, one part of the air flow enters the air channel between the side wall of the inner container and the shell from the filter element, oil stain and impurities are taken away, and partial moisture is taken away, the other part of the air flow takes away the moisture and enters the cavity between the top of the inner container cover and the shell from the channel of the inner container cover, under the action of air flow pressure, the elastic one-way check valve plate 10 abuts against the inner wall of the shell and is in an open state, the partial air flow enters the air channel between the side wall of the inner container and the shell through the elastic one-way check valve plate, and the two parts of the air flow. (shown in FIG. 5)
The specific functions of the components and the techniques known in the art are not described in detail in the present specification.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

1. A novel high-efficiency automobile air dryer comprises a shell with a closed upper end, a bottom cover in threaded connection with the bottom of the shell and a filter element, wherein an air inlet is formed in the bottom cover, and a threaded bayonet connected with an external air pipeline is arranged in the middle of the bottom cover; be equipped with the inner bag in the shell, the inner bag top is equipped with inner bag lid, the bottom is equipped with the connection pad, the downward extension cover in the middle of the connection pad bottom is established outside the screw thread bayonet socket of bottom, the position of looks butt is equipped with the sealing washer, the inner bag inner chamber constitutes the drier and stores the chamber, the card is equipped with the spring between inner bag lid and the shell, the inner bag is covered to be equipped with and the communicating passageway of inner bag, cavity between inner bag and shell constitutes air passage, its characterized in that:
the filter element is arranged at the upper part of the inner container, a filter element installation cavity is extended from outside to inside at the upper part of the inner container and is preset, through holes are uniformly distributed at the outer wall and the upper part of the inner wall of the filter element installation cavity, the filter element is arranged in the filter element installation cavity, the top and the bottom of the filter element are respectively abutted against the bottoms of the inner container cover and the filter element installation cavity, and a sealing ring is arranged at the abutting part of the top and; a gas diffusion plate is erected at the top end of the inner wall of the filter element mounting cavity, a gap for gas to flow is formed between the gas diffusion plate and the inner container cover, and through holes for the gas to uniformly pass through are distributed in the gas diffusion plate;
the channel of the liner cover is also correspondingly provided with a one-way bypass valve and an elastic one-way check valve plate, the one-way bypass valve is used for controlling compressed air to enter the channel of the liner from the liner cover, and the elastic one-way check valve plate is used for controlling air flow to enter the air channel between the liner and the shell from the liner cover when the air dryer is subjected to back flushing cleaning;
a groove extending towards the inner part of the inner container is formed in the middle of the connecting disc, air outlet holes are uniformly distributed in the side wall of the groove, filter discs are distributed at the inner ends of the air outlet holes, and the groove is communicated with the threaded bayonet of the bottom cover; a cavity formed between the bottom surface of the connecting disc and the bottom cover, an air channel between the inner container and the shell and an air inlet on the bottom cover are communicated;
a fixing rod is arranged in the drying agent storage cavity and in the center between the gas diffusion plate and the connecting disc, a spiral sheet is fixedly arranged on the fixing rod in a penetrating mode, and the outer contour of the spiral sheet is matched with the size of the inner wall of the inner container.
2. The new high efficiency air dryer for automobiles of claim 1, wherein: the one-way bypass valve is arranged in the center of the top of the inner container cover and comprises a cylindrical valve seat, the upper end of the cylindrical valve seat is provided with an inner edge extending towards the center, the lower end of the cylindrical valve seat is provided with an outward flange, and the outward flange forms an installation part of a spring between the inner container cover and the shell; a cylindrical air inlet valve seat is arranged in the valve seat, through holes are uniformly distributed on the wall of the air inlet valve seat, the upper end of the air inlet valve seat extends towards the center and is fixed on the upper end and the lower end of the inner edge of the valve seat through a U-shaped wrapping edge with an outward opening, an inward bending and upward inward flanging is arranged at the upper end and the lower end of the inner edge of the valve seat, a sealing gasket and a fixing plate for supporting the sealing gasket are arranged in an inner cavity of the air inlet valve seat in a sliding fit manner, the inward flanging at the lower end of the air inlet valve seat forms a spring mounting part between the fixing plate and the flanging, a compression spring is clamped on the spring; the inner container cover is provided with a bulge used for limiting the one-way bypass valve, the lower end of the air inlet valve seat is abutted against the inner side of the bulge on the inner container cover, and the inner container cover positioned right below the fixing plate is provided with a channel.
3. The new high efficiency air dryer for automobiles of claim 2, wherein: the inner side close to the end part of the elastic one-way check valve block is clamped between the valve seat and the liner cover, the inner end of the elastic one-way check valve block abuts against the outer side of the bulge of the liner cover, the outer end of the elastic one-way check valve block extends outwards along the liner cover, the bottom of the outer end of the elastic one-way check valve block is provided with a bulge, the corresponding liner cover is provided with a groove, and channels are uniformly distributed at the part, attached to the elastic one-way check valve block, of; when the elastic one-way check valve plate is in an open state, the outer end part of the elastic one-way check valve plate abuts against the inner wall of the shell.
4. A new high efficiency automotive air dryer as claimed in claim 1, 2 or 3, wherein: the drying agent is a molecular sieve, or silica gel, or cellulose particles.
5. The new high efficiency air dryer for automobiles of claim 4, wherein: the elastic one-way check valve plate is made of rubber.
6. A new high efficiency automotive air dryer as claimed in claim 1 or 2 or 3 or 5, wherein: the filter element adopts synthetic fiber with oil absorption function, or non-woven fabric, or filter paper, or the combination of the three.
7. The new high efficiency air dryer for automobiles of claim 4, wherein: the filter element adopts synthetic fiber with oil absorption function, or non-woven fabric, or filter paper, or the combination of the three.
CN202010812057.7A 2020-08-13 2020-08-13 Novel high-efficient car air dryer Pending CN111821824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010812057.7A CN111821824A (en) 2020-08-13 2020-08-13 Novel high-efficient car air dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010812057.7A CN111821824A (en) 2020-08-13 2020-08-13 Novel high-efficient car air dryer

Publications (1)

Publication Number Publication Date
CN111821824A true CN111821824A (en) 2020-10-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010812057.7A Pending CN111821824A (en) 2020-08-13 2020-08-13 Novel high-efficient car air dryer

Country Status (1)

Country Link
CN (1) CN111821824A (en)

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