CN112275101A

CN112275101A - Multifunctional air processing unit

Info

Publication number: CN112275101A
Application number: CN202011121083.1A
Authority: CN
Inventors: 董强; 于红伟; 赵乾坤; 李聪; 郭兆龙; 黎刚
Original assignee: Shiyan Laian Auto Parts Co ltd
Current assignee: Shiyan Laian Auto Parts Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-01-29

Abstract

The invention provides a multifunctional air processing unit, which comprises a dryer upper cavity, an air inlet channel, an exhaust valve, a one-way valve and a pressure limiting valve, wherein the dryer upper cavity is provided with a first air inlet and a second air inlet; the dryer comprises a dryer upper cavity, a dryer cylinder assembly, a drying agent, an annular channel, a central channel and a filter, wherein the dryer upper cavity, the dryer cylinder assembly, the drying agent, the annular channel, the central channel and the filter jointly form the air dryer assembly, an air inlet channel for compressed air to enter is formed in the lower portion of the air dryer assembly, an exhaust valve, an unloading valve, a backflow stop valve and a four-loop protection valve are all integrated on the same dryer main body, the exhaust valve and the unloading valve are communicated through a cavity A, a one-way valve is installed at the air inlet end of the cavity C, the air outlet end of the cavity C is connected with the four-loop protection valve, and the pressure limiting valve. The four-loop protection valve and the pressure limiting valve are arranged on the same body, the whole structure is more compact, the structure of the dryer assembly fixed on the frame is improved and simplified, the drying agent has regeneration capacity, and the balance of gas consumption of the whole vehicle is ensured by adding the pressure limiting function.

Description

Multifunctional air processing unit

Technical Field

The invention belongs to the technical field of automobile braking, and particularly relates to a multifunctional air processing unit.

Background

The vehicle multifunctional air processing unit is an assembly of an air dryer, a backflow stop valve, a four-loop protection valve and a pressure limiting valve, and the air dryer is used for cleaning, drying and controlling compressed air from an air compressor; the backflow stop valve realizes the back flushing regeneration of the drying agent; the four-loop protection valve is used for distributing and protecting system pressure, and the pressure limiting valve is used for assisting the pressure stability of the gas circuit, so that the driving safety is ensured. Therefore, the multifunctional air processing unit for the automobile provides a set of complete, simple, clean, dry, safe and effective air processing unit for the automobile braking system.

Along with the implementation of national VI standard, the commercial vehicle is newly provided with a urea discharge tank, a processing system and a standard ABS, so that the arrangement of the original air dryer assembly, the four-loop protection valve and the 4 air storage tanks on the side edge of the vehicle frame is extruded, the structural design of the original multifunctional processing unit of the air dryer is optimized, the installation space is reduced, and the multifunctional processing unit of the air dryer with a compact structure needs to be designed.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a multifunctional air processing unit, which solves the problems of optimizing the structural design and reducing the installation space of the multifunctional processing unit of the prior air dryer.

The purpose and the effect of the multifunctional air processing unit are achieved by the following specific technical means:

a multifunctional air processing unit comprises a dryer upper cavity, an air inlet channel, an exhaust valve, a one-way valve and a pressure limiting valve; the dryer comprises a dryer upper cavity, a dryer cylinder assembly, a drying agent, an annular channel, a central channel and a filter, wherein the dryer upper cavity, the dryer cylinder assembly, the drying agent, the annular channel, the central channel and the filter jointly form the air dryer assembly, an air inlet channel for compressed air to enter is formed in the lower portion of the air dryer assembly, an exhaust valve, an unloading valve, a backflow stop valve and a four-loop protection valve are all integrated on the same dryer main body, the exhaust valve and the unloading valve are communicated through a cavity A, a one-way valve is installed at the air inlet end of the cavity C, the air outlet end of the cavity C is connected with the four-loop protection valve, and the pressure limiting valve.

Furthermore, the unloading valve consists of a cavity B, an unloading valve cup and an unloading valve spring.

Furthermore, the four-circuit protection valve consists of a cavity D, a protection valve leather cup and a protection valve spring.

Furthermore, the backflow stop valve is composed of an E cavity, a backflow valve spring, a backflow valve membrane and an F cavity, and a backflow adjusting prevention limiting device is arranged at a port of the backflow stop valve.

Furthermore, the pressure limiting valve consists of a pressure limiting spring, a G cavity and an adjusting spring.

The invention at least comprises the following beneficial effects:

1. according to the invention, the four-loop protection valve and the pressure limiting valve are arranged on the same body, so that the overall structural arrangement is more compact, parts such as a pressure main pipe and a small support which are connected in a split manner are eliminated, the overall structural arrangement is more compact, the arrangement space is reduced by 1/3, the structure of fixing the dryer assembly on the frame is improved and simplified, a triangular support three-point fixed connection mode is adopted, a connecting plate is saved, the side surface of a frame girder can be directly fixed, and the reliability of a braking system is greatly enhanced.

2. The invention can effectively adsorb and dry the compressed air from the air compressor, prevent the pipeline from being rusted, has regeneration capacity for the drying agent, is suitable for medium and heavy commercial truck loading vehicles, and strengthens the requirement of the national VI emission standard for loading.

3. The invention ensures the balance of the gas consumption of the whole vehicle and ensures the driving safety by adding the pressure limiting function.

Drawings

Fig. 1 is a schematic view of a conventional integrated air dryer.

Fig. 2 is a schematic sectional view of the main structure of the multifunctional air treatment unit of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. the dryer upper cavity; 2. a drying cylinder assembly; 3. a desiccant; 4. an annular channel; 5. a central channel; 6. a filter; 7. an air intake passage; 8. a dryer main body; 9. an exhaust valve; 10. a cavity A; 11. an unloading valve; 12. a cavity B; 13. unloading the valve cup; 14. unloading the valve spring; 15. a one-way valve; 16. a cavity C; 17. a four-circuit protection valve; 18. a cavity D; 19. a protective valve cup; 20. a protection valve spring; 21. a backflow stop valve; 22. a cavity E; 23. a return valve spring; 24. a return valve diaphragm; 25. a cavity F; 26. a pressure limiting valve; 27. a pressure limiting spring; 28. a cavity G; 29. adjusting the spring; 30. a cavity H; 31. a cavity J; 32. an air cylinder.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "two ends," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood broadly, and for example, they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Example (b):

as shown in figures 1 to 2:

the invention provides a multifunctional air processing unit, which comprises a dryer upper chamber 1, an air inlet channel 7, an exhaust valve 9, a one-way valve 15 and a pressure limiting valve 26; the dryer upper cavity 1, the drying cylinder assembly 2, the drying agent 3, the annular channel 4, the central channel 5 and the filter 6 jointly form an air dryer assembly, an air inlet channel 7 for compressed air to enter is arranged at the lower part of the air dryer assembly, impurities can be effectively prevented from entering by using the filter 6, air leakage and failure of the dryer caused by the impurities are avoided, the exhaust valve 9, the unloading valve 11, the backflow stop valve 21 and the four-loop protection valve 17 are all integrated on the same dryer main body 8, the exhaust valve 9 is communicated with the unloading valve 11 through the cavity A10, the one-way valve 15 is installed at the air inlet end of the cavity C16, the air outlet end of the cavity C16 is connected with the four-loop protection valve 17, and the pressure limiting valve 26 is connected with the air storage cylinder 32 through the cavity H30 and the cavity J31.

The unloading valve 11 is composed of a cavity B12, an unloading valve cup 13 and an unloading valve spring 14, the unloading valve 11 is a pressure overflow safety valve, and when the system pressure reaches a required value, the unloading valve is automatically opened to protect the safety of the brake system, and a pressure adjusting bolt is not required to be adjusted.

The four-circuit protection valve 17 is composed of a D cavity 18, a protection valve cup 19 and a protection valve spring 20.

Wherein, the backflow stop valve 21 comprises E chamber 22, backflow valve spring 23, backflow valve diaphragm 24, F chamber 25, and the port of backflow stop valve 21 is equipped with backward flow and prevents adjusting stop device, avoids the desicator function failure because of the mistake adjustment causes, when system pressure reaches cutting off pressure, make some compressed air backward flow through backflow stop valve 21, get into desicator epicoele 1 through central channel 5, carry out blowback drier 3, make its endless loop resume drying ability.

Wherein, the pressure limiting valve 26 consists of a pressure limiting spring 27, a G cavity 28 and an adjusting spring 29.

The specific use mode and function of the embodiment are as follows:

in the invention, compressed air enters an air inlet channel 7, is dried by an air dryer assembly, then enters a C cavity 16 through a one-way valve 15 through an output port at the lower part of the air dryer assembly, flows to a four-loop protection valve 17, enters a D cavity 18, a protection valve cup 19 and a protection valve spring 20 to control the braking of a backflow stop valve 21 and the working pressure of a loop, is connected with a pressure limiting valve 26 through an F cavity 25, controls air flow to a G cavity 28 through a pressure limiting spring 27, opens the valve under the action of an adjusting spring 29, flows to an H cavity 30 and a J cavity 31, and reaches an air storage cylinder 32.

The invention is not described in detail, but is well known to those skilled in the art.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A multi-functional air handling unit characterized by: comprises a dryer upper cavity (1), an air inlet channel (7), an exhaust valve (9), a one-way valve (15) and a pressure limiting valve (26); the dryer comprises a dryer upper cavity (1), a dryer cylinder assembly (2), a drying agent (3), an annular channel (4), a central channel (5) and a filter (6) which jointly form an air dryer assembly, wherein an air inlet channel (7) for compressed air to enter is formed in the lower portion of the air dryer assembly, an exhaust valve (9), an unloading valve (11), a backflow stop valve (21) and a four-loop protection valve (17) are all integrated on the same dryer main body (8), the exhaust valve (9) and the unloading valve (11) are communicated through an A cavity (10), a one-way valve (15) is installed at the air inlet end of a C cavity (16), the air outlet end of the C cavity (16) is connected with the four-loop protection valve (17), and a pressure limiting valve (26) is connected with an air storage cylinder (32) through an H cavity (30) and a J cavity (31).

2. The multi-function air handling unit of claim 1, wherein: the unloading valve (11) consists of a cavity B (12), an unloading valve cup (13) and an unloading valve spring (14).

3. The multi-function air handling unit of claim 1, wherein: the four-circuit protection valve (17) is composed of a D cavity (18), a protection valve cup (19) and a protection valve spring (20).

4. The multi-function air handling unit of claim 1, wherein: the backflow stop valve (21) is composed of an E cavity (22), a backflow valve spring (23), a backflow valve diaphragm (24) and an F cavity (25), and a backflow anti-adjustment limiting device is arranged at a port of the backflow stop valve (21).

5. The multi-function air handling unit of claim 1, wherein: the pressure limiting valve (26) consists of a pressure limiting spring (27), a G cavity (28) and an adjusting spring (29).