CN111013339A

CN111013339A - High-efficient oil strain desicator assembly

Info

Publication number: CN111013339A
Application number: CN201911322859.3A
Authority: CN
Inventors: 董强; 赵乾坤; 郭兆龙; 柯尊学; 李聪; 于红伟
Original assignee: Shiyan Laian Auto Parts Co ltd
Current assignee: Shiyan Laian Auto Parts Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-04-17

Abstract

The invention discloses a high-efficiency oil filtering dryer assembly, relates to the technical field of dryers, and solves the problems that the drying capacity of a molecular sieve of an existing dryer can suddenly drop under the condition that the molecular sieve is polluted by oil, the failure is irreversible, and even the dryer loses the drying function. An efficient oil filtering dryer assembly comprises a filter screen; the filter screen is inserted into the top of the dryer body in an interference manner. The stainless steel wire filter screen is integrally and additionally arranged in the valve cavity of the dryer, and the filter screen is three times larger than a conventional oil filtering device in size, so that oil can be filtered in an all-around mode, a more efficient oil filtering effect is achieved, the service life of the dryer molecular sieve is prolonged, the service life of the dryer can be prolonged due to the efficient oil filtering effect, impurities generated in the steel pipe and the pipe joint can be filtered by the filter screen, and the service life of the dryer is prolonged.

Description

High-efficient oil strain desicator assembly

Technical Field

The invention belongs to the technical field of dryers, and particularly relates to a high-efficiency oil filtering dryer assembly.

Background

An automobile air conditioning system is a device for refrigerating, heating, ventilating and purifying air in a carriage. The automobile seat cushion can provide a comfortable riding environment for passengers, reduce the fatigue strength of a driver and improve the driving safety. The dryer is a necessary device for ensuring the normal operation of the compressor and the refrigeration system, and the dryer is a necessary device for ensuring the normal operation of the compressor and the refrigeration system. It has three functions of liquid storage, filtration and drying.

If the application number is: CN201420227654.3 patent discloses a multi-slope leather cup for pressure relief valve of automobile dryer, which comprises an annular rubber main body, the main body comprises an upper lip and a lower ring body, the upper lip and the lower ring body are provided with slopes, the outer wall of the lower ring body is an inward slope from top to bottom, and the slope of the upper lip is provided with two or more continuous slopes. The invention is applied to the pressure relief valve of the automobile dryer, improves the structural stability of the pressure relief piston, prolongs the service life and improves the reliability of the product.

The molecular sieve drying efficiency of the existing air dryer assembly is a key function of the air dryer assembly, and from the aspects of customer market feedback, maintenance conditions of a service station of a commercial vehicle and three-pack claim old parts, the premature failure of the air dryer function is commonly existed, so that the customer complains about the fact that the supplier claim is serious, and perhaps more serious, the driver has low awareness of vehicle maintenance, and irrecoverable accidents are caused. The reason is related to the failure of the molecular sieve of the dryer, whether the molecular sieve is a domestic molecular sieve or an imported molecular sieve, when the molecular sieve is subjected to oil contamination, the drying capacity of the molecular sieve is suddenly reduced, the failure is irreversible, and the drying function of the dryer can be even lost.

Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a high-efficiency oil filter dryer assembly is provided to achieve a more practical purpose.

Disclosure of Invention

In order to solve the technical problems, the invention provides an efficient oil filter dryer assembly, which aims to solve the problem that the molecular sieve drying efficiency of the conventional air dryer assembly is a key function of the dryer assembly, and from the aspects of customer market feedback, maintenance conditions of a commercial vehicle service station and three claim old pieces, the premature failure of the air dryer function generally exists, so that customers complain about, suppliers claim seriously, and possibly more seriously, drivers have low awareness on vehicle maintenance, and irrecoverable accidents are caused. The reason is related to the failure of the molecular sieve of the dryer, whether the molecular sieve is a domestic molecular sieve or an imported molecular sieve, when the molecular sieve is subjected to oil contamination, the drying capacity of the molecular sieve is suddenly reduced, and the failure is irreversible and even causes the dryer to lose the drying function.

The purpose and the effect of the high-efficiency oil filtering dryer assembly are achieved by the following specific technical means:

an efficient oil filtering dryer assembly comprises a dryer upper cavity, a drying agent, an annular channel, a central channel, a filter screen, an air inlet, a piston, a cavity a, an unloading valve, a cavity b, a leather cup, an unloading spring, a one-way valve and an air outlet; the upper cavity of the dryer is an inner cavity of the drying cylinder assembly; the drying agent is movably connected inside the drying cylinder assembly; the annular channel is arranged inside the drying cylinder assembly; the central passage is located inside the dryer body; the filter screen is inserted at the top of the dryer body in an interference manner; the air inlet and the air outlet are communicated with an air passage in the dryer main body; the piston is movably connected inside the dryer main body; the cavity a and the cavity b are positioned inside the dryer main body; the unloading valve is fixedly connected to the side surface of the bottom of the dryer main body; the leather cup is movably connected inside the unloading valve; the unloading spring is movably connected inside the unloading valve; the check valve is fixedly connected to the top of the unloading valve and communicated with the air passage inside the dryer main body.

Furthermore, the filter screen is made of stainless steel wire.

Further, the filter screen is a circular screen ring.

Further, the volume of the filter screen is three times of that of the conventional oil filtering device, and the inner diameter and the outer diameter of the filter screen are the same as those of the mounting groove on the top surface of the dryer main body.

Compared with the prior art, the invention has the following beneficial effects:

the stainless steel wire filter screen is integrally and additionally arranged in the valve cavity of the dryer, and the filter screen is three times larger than a conventional oil filtering device in size, so that oil can be filtered in an all-around mode, a more efficient oil filtering effect is achieved, the service life of the dryer molecular sieve is prolonged, the service life of the dryer can be prolonged due to the efficient oil filtering effect, impurities generated in the steel pipe and the pipe joint can be filtered by the filter screen, and the service life of the dryer is prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view showing the structure of the dryer main body according to the present invention.

Fig. 3 is a schematic view of the structure of the screen 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. filtering with a screen; 7. an air inlet; 8. a dryer main body; 9. a piston; 10. a cavity; 11. an unloading valve; 12. a cavity b; 13. a leather cup; 14. unloading the spring; 15. a one-way valve; 16. and an air outlet.

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 "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 3:

the invention provides a high-efficiency oil filtering dryer assembly which comprises a dryer upper cavity 1, a drying agent 3, an annular channel 4, a central channel 5, a filter screen 6, an air inlet 7, a piston 9, an a cavity 10, an unloading valve 11, a b cavity 12, a leather cup 13, an unloading spring 14, a one-way valve 15 and an air outlet 16, wherein the drying agent 3 is arranged in the dryer upper cavity; the upper cavity 1 of the dryer is an inner cavity of the drying cylinder assembly 2; the drying agent 3 is movably connected inside the drying cylinder assembly 2; the annular channel 4 is arranged inside the drying cylinder assembly 2; the central channel 5 is located inside the dryer body 8; the filter screen 6 is inserted at the top of the dryer main body 8 in an interference manner; the air inlet 7 and the air outlet 16 are communicated with an air passage inside the dryer main body 8; the piston 9 is movably connected inside the dryer main body 8; the a-chamber 10 and the b-chamber 12 are located inside the dryer body 8; the unloading valve 11 is fixedly connected with the bottom side surface of the dryer main body 8; the leather cup 13 is movably connected inside the unloading valve 11; the unloading spring 14 is movably connected inside the unloading valve 11; a check valve 15 is fixedly connected to the top of the unloading valve 11, and the check valve 15 communicates with an air passage inside the dryer body 8.

Wherein, filter screen 6 is made by the stainless steel wire material, and this design makes filter screen 6 can filter the impurity that produces in steel pipe and the coupling, and stainless steel wire material durability is higher, has prolonged the life of desicator.

Wherein, filter screen 6 is circular net circle, as shown in fig. 2 and fig. 3, can the omnidirectional carry out the oil strain to desicator main part 8, has improved the device's adaptability.

Wherein, the volume of filter screen 6 is three times of traditional oil filter device volume, and the internal diameter and the external diameter of filter screen 6 are the same with the internal diameter and the external diameter of the mounting groove of 8 top surfaces of desicator main parts, as shown in figure 1, figure 2 and figure 3, this design makes filter screen 6 can the omnidirectional carry out the oil strain, reaches more efficient oil strain effect, has improved the life of desicator main part 8, has improved the durability of device.

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

in the invention, compressed air from an engine air compressor enters an inner cavity of a drying cylinder assembly 2 through an air inlet 7, condensed water generated due to temperature reduction is gathered at the inner cavity, passes through a molecular sieve drying agent 3 in the drying cylinder assembly 2, and enters an upper cavity 1 of a dryer, and the air is further cooled and water vapor is further condensed in the process. When passing through the granular screen 6, water is adsorbed on the surface of the granular drying agent 3 and between the granular gaps. The dried compressed air enters the one-way valve 15 and the air outlet 16 via the central passage 5. Meanwhile, the dried air also carries out pressure limiting and circulating drying on the compressed air from the air compressor and removes moisture and oil stain (the granular drying agent 3 in the dryer has strong capacity of absorbing moisture in the air), and the drying agent 3 is blown back by the compressed air of the air storage cylinder in the automobile so as to continuously and circularly recover the drying capacity.

When the pressure of the system reaches the cut-off pressure of eight kilograms, the unloading valve 11 in the air dryer assembly is opened, the cavity a 10 enters the air dryer assembly to push the piston 9 to open the exhaust valve piston 9, and compressed air from the engine air compressor and condensed water retained in the cavity of the air dryer are directly discharged from the exhaust port at the lower part, so that the unloading function of the air compressor is realized. Meanwhile, compressed air of an air storage cylinder in the automobile enters the dryer upper cavity 1 through the annular channel 4 at the edge to blow back the drying agent 3, moisture retained in the drying agent 3 and oil stains of the metal filter screen 6 are taken away, the drying agent is discharged from an exhaust port below the exhaust valve piston 9, when the system pressure is lower than a certain value of the cut-off pressure, the unloading valve 11 and the exhaust valve piston 9 are closed, and the system realizes a normal air supply function. When the system pressure reaches the cut-off pressure again, the unloading valve 11 is opened again to realize the unloading and dryer back-blowing self-cleaning functions. Therefore, the air supply and unloading functions of the air treatment unit are circularly performed.

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. The utility model provides a high-efficient oil strain desicator assembly which characterized in that: the dryer comprises a dryer upper cavity (1), a drying agent (3), an annular channel (4), a central channel (5), a filter screen (6), an air inlet (7), a piston (9), an a cavity (10), an unloading valve (11), a b cavity (12), a leather cup (13), an unloading spring (14), a one-way valve (15) and an air outlet (16); the dryer upper cavity (1) is an inner cavity of the drying cylinder assembly (2); the drying agent (3) is movably connected inside the drying cylinder assembly (2); the annular channel (4) is arranged inside the drying cylinder assembly (2); the central channel (5) is located inside the dryer body (8); the filter screen (6) is inserted at the top of the dryer main body (8) in an interference manner; the air inlet (7) and the air outlet (16) are communicated with an air passage in the dryer main body (8); the piston (9) is movably connected inside the dryer main body (8); the cavity a (10) and the cavity b (12) are positioned inside the dryer body (8); the unloading valve (11) is fixedly connected to the bottom side surface of the dryer main body (8); the leather cup (13) is movably connected inside the unloading valve (11); the unloading spring (14) is movably connected inside the unloading valve (11); the one-way valve (15) is fixedly connected to the top of the unloading valve (11), and the one-way valve (15) is communicated with an air channel inside the dryer main body (8).

2. The high efficiency filter oil dryer assembly of claim 1 wherein: the filter screen (6) is made of stainless steel wire.

3. The high efficiency filter oil dryer assembly of claim 1 wherein: the filter screen (6) is a circular screen ring.

4. The high efficiency filter oil dryer assembly of claim 1 wherein: the volume of the filter screen (6) is three times of that of the traditional oil filtering device, and the inner diameter and the outer diameter of the filter screen (6) are the same as those of the mounting groove on the top surface of the dryer main body (8).