Filtering and regenerating device for automobile drying tank

Abstract

The utility model discloses a filtering regeneration device for an automobile drying tank, which relates to the technical field of automobile related equipment and comprises an adapter which is fixedly arranged between the automobile drying tank and a base and is provided with a gas channel for communicating an inner cavity of the automobile drying tank with a ventilation port of the base, a vent hole communicated with the outer cavity of the automobile drying tank is formed in the adapter; the gas storage tank is communicated with the gas channel through a connecting gas pipe; the filtering device is installed at the end, away from the automobile drying tank, of the vent hole. According to the filtering regeneration device for the automobile drying tank, provided by the utility model, the filtering device is arranged, so that moisture and impurities in air can be filtered; and gas in the gas storage tank blows back the molecular sieve in the automobile drying tank during exhausting, so that clean regeneration of the molecular sieve is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile-related equipment, in particular to a filtering and regenerating device for an automobile drying tank. Background Art

[0002] With the rapid development of the automobile industry, the safety and reliability of automobiles have become the focus of public attention. As a key system to ensure driving safety, the stability and reliability of the performance of the automobile braking system are particularly important. In the automobile braking system, the desiccant is an indispensable part. Its main function is to dry and filter the compressed air output from the air compressor to prevent impurities such as moisture and oil from entering the braking system and affecting the braking performance. However, the molecular sieve effect of traditional desiccant will gradually decrease during long-term use, and may even allow moisture and impurities to re-enter the braking system, affecting the braking performance.

[0003] In order to solve the problems existing in traditional drying tanks, a filtering regeneration device is urgently needed, which can regenerate the molecular sieve in the drying tank and improve its working performance, thereby extending the service life of the drying tank; in addition, the device should also have filtering capabilities, which can effectively remove moisture and impurities in the air to ensure the cleanliness and dryness of the brake system. Utility Model Content

[0004] The utility model aims to provide a filtering and regenerating device for automobile drying tanks to solve the problems existing in the above-mentioned prior art. By setting up a filtering device, moisture and impurities in the air can be filtered; the gas in the gas storage tank is back-flushed to the molecular sieve in the automobile drying tank during exhaust to achieve clean regeneration of the molecular sieve.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a filtering and regenerating device for an automobile drying tank, comprising: an adapter, which is fixedly arranged between the automobile drying tank and a base and is provided with a gas passage connecting the inner cavity of the automobile drying tank and the air vent of the base, and the adapter is provided with an air vent connecting the outer cavity of the automobile drying tank; an air storage tank connected with the gas passage through a connecting air pipe; and a filtering device installed at one end of the air vent away from the automobile drying tank.

[0007] Optionally, the adapter seat includes an adapter stud, the gas channel runs through the adapter stud, one end of the adapter stud is connected to the inner cavity gas port of the automobile drying tank through an external thread, and the other end of the adapter stud is connected to the vent of the base through an internal thread.

[0008] Optionally, the adapter seat further includes an adapter platform, the adapter platform is arranged around the outside of the adapter stud, and the adapter platform and the adapter stud are integrally formed; the vent hole is provided on the adapter platform.

[0009] Optionally, the adapter seat also includes an adapter platform, the adapter platform ring is arranged on the outside of the adapter stud, and an O-ring is provided between the adapter platform and the adapter stud; the bottom of the adapter platform is flush with the bottom of the adapter stud; and the vent hole is opened on the adapter platform.

[0010] Optionally, the filtering device is a metal mesh compression filter element.

[0011] Optionally, the vent hole is a conical structure, and its inner diameter gradually increases from one end close to the filter device to one end of the outer cavity of the automobile drying tank.

[0012] Optionally, the upper end surface of the transfer platform is fixedly sealed and connected to the bottom of the automobile drying tank, and a water collecting trough with an annular structure is provided on the upper end surface of the transfer platform, and a notch on the top of the water collecting trough is connected to the outer cavity of the automobile drying tank; one end of the vent passes through the water collecting trough and is connected to the outer cavity of the automobile drying tank.

[0013] Optionally, an annular mounting groove is provided on the bottom end surface of the adapter, the filter device is fixedly arranged in the mounting groove, the bottom of the vent passes through the mounting groove and is connected with the filter device; the bottom end surface of the adapter is fixedly and sealedly connected to the base, and the mounting groove is connected with the external air hole on the base.

[0014] Optionally, a rectangular sealing ring is provided on the bottom end surface of the transfer platform, and the rectangular sealing ring is in sealing contact with the base; the rectangular sealing ring is provided on the outside of the installation groove.

[0015] Optionally, the gas passage includes a stepped hole structure opened in the adapter stud, the inner diameter of the lower part of the stepped hole is larger than the inner diameter of the upper part, the inner wall of the lower part of the stepped hole is provided with an internal thread interface for connecting to the base vent, and the outer wall of the adapter stud away from the internal thread interface at one end is provided with an external thread interface, and the external thread interface is used to connect to the inner cavity gas port of the automobile drying tank.

[0016] Compared with the prior art, the utility model has achieved the following technical effects:

[0017] The utility model provides an adapter between the original automobile drying tank and the base. A large amount of carbon deposits and engine oil can be blocked by a filtering device at the bottom of the adapter, thereby improving the working environment and performance of the original automobile drying tank. By connecting an external gas storage tank, the gas storage tank can synchronously enter the automobile drying tank from the gas channel during exhaust, and backflush the molecular sieve in the automobile drying tank, thereby increasing the backflush airflow and the backflush time, so that the molecular sieve can be better regenerated and enter a better next working cycle with better performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the connection between the existing automobile drying tank and the base;

[0020] Figure 2 It is a schematic diagram of the utility model after the filtering and regenerating device for the automobile drying tank is installed between the automobile drying tank and the base;

[0021] Figure 3 This is a schematic diagram of the structure of the filter regeneration device for the automobile drying tank of the utility model;

[0022] Figure 4 This is a schematic diagram of the working state of the filter regeneration device for the automobile drying tank of the utility model;

[0023] Figure 5 It is a schematic diagram of the exhaust gas regeneration state of the filter regeneration device for the automobile drying tank of the utility model.

[0024] In the figure: 100-filter regeneration device for automobile drying tank, 200-automobile drying tank, 300-base, 1-adapter, 2-connecting air pipe, 3-gas storage tank, 4-filter, 5-water collecting tank, 6-internal thread interface, 7-external thread interface, 8-vent, 9-rectangular sealing ring, 10-O-ring, 11-gas channel, 12-adapter stud. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model aims to provide a filtering and regenerating device for automobile drying tanks to solve the problems existing in the above-mentioned prior art. By setting up a filtering device, moisture and impurities in the air can be filtered; the gas in the gas storage tank is back-flushed to the molecular sieve in the automobile drying tank during exhaust to achieve clean regeneration of the molecular sieve.

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] In the automobile braking system, the automobile drying tank 200 is an indispensable part. Its interior is divided into an outer cavity and an inner cavity. A molecular sieve is arranged between the inner cavity and the outer cavity. The base 300 is provided with a base vent connected to the inner cavity of the automobile drying tank 200, and an external air hole connected to the outer cavity of the automobile drying tank 200. The external air hole is not connected to the air hole of the base 300. Compressed air enters the automobile drying tank 200 from the external air hole, and is transported to the automobile braking system or other places where dry air is required through the base air hole after drying. When exhausting, the gas enters the automobile drying tank 200 from the gas-using components through the air hole of the base 300 in the reverse direction, and is discharged from the external air hole after back-blowing the molecular sieve, thereby realizing the positive and reverse circulation of the gas. The main function is to dry and filter the compressed air output from the air compressor to prevent moisture and impurities from entering the braking system and affecting the braking performance. Figure 1 As shown, the bottom of the existing automobile drying tank 200 is directly connected to the base 300. During the intake process, since there is no separate filtering device, impurities such as engine oil and moisture can easily enter the automobile drying tank 200 through the air inlet, thereby destroying the working environment of the molecular sieve in the automobile drying tank 200 and making it unable to work normally. After the molecular sieve has been filtered for a period of time, impurities will accumulate on the surface, affecting its use effect. Therefore, during the exhaust process, the molecular sieve will be purged with a back-blowing airflow to clean and regenerate it; however, in the existing automobile drying tank 200, during the exhaust process, the back-blowing airflow of the base is too small, so that the molecular sieve in the automobile drying tank cannot be well cleaned by the back-blowing airflow, so that the molecular sieve cannot be well regenerated, and its working performance is reduced.

[0029] Based on the problems encountered in the above-mentioned existing structures, the utility model provides a filtering and regenerating device 100 for an automobile drying tank, such as Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, it includes an adapter 1 fixedly arranged between the automobile drying tank 200 and the base 300, the adapter 1 is provided with a gas channel 11 connecting the inner cavity of the automobile drying tank 200 and the vent of the base 300, and the adapter 1 is also provided with a vent hole 8 connecting the outer cavity of the automobile drying tank 200; the gas storage tank 3 is connected to the inner wall of the gas channel 11 through the connecting air pipe 2; the filter device 4 is installed at the end of the vent hole 8 away from the automobile drying tank 200. During operation, the compressed air first enters the filter device 4, and then blocks a large amount of carbon deposits and oil through the filter device, and then enters the outer cavity of the automobile drying tank 200, thereby improving the working environment and performance of the original automobile drying tank 200; a regeneration hole is opened on the inner wall of the gas channel 11, and the regeneration hole is externally connected to the gas storage tank 3. During the intake process, part of the gas enters the gas storage tank 3 for storage. Since the intake and exhaust processes are reciprocating and continuous cycles, the gas storage tank 3 can store part of the gas during intake. During exhaust, the gas in the gas storage tank 3 merges with the exhaust gas flowing through the gas channel 11, and enters the automobile drying tank 200 together to backflush the molecular sieve. Through the external gas storage tank 3, the backflush airflow is increased through the regeneration hole, and the backflush time is extended, so that the molecular sieve is better regenerated and enters the next working cycle with better performance.

[0030] The filter device 4 of the utility model is a metal mesh compression filter element, which generally refers to a metal mesh material (such as stainless steel, copper, nickel, monel alloy, etc.) formed into a mesh structure after special weaving or pressing, welding, and then sintered at high temperature or compressed by a specific process to make it a filter element with certain strength and filtering accuracy. This type of filter element is widely used in the fields of filtration, separation and purification of liquids and gases.

[0031] On the basis of the above, in order to make the adapter 1 better connected with the outer cavity of the automobile drying tank 200, the adapter stud 12 of the adapter 1 is provided with an adapter platform, and a circular mounting groove is provided on the bottom end surface of the adapter platform. The filter device 4 is fixedly arranged in the mounting groove, and the bottom of the vent 8 passes through the mounting groove and is connected with the filter device 4; the bottom end surface of the adapter platform is fixedly sealed and connected with the base 300, and the mounting groove is connected with the external air hole on the base 300. A rectangular sealing ring 9 is provided on the bottom end surface of the adapter platform, and the rectangular sealing ring 9 is connected with the base 300 in sealing contact; the rectangular sealing ring 9 is arranged on the outside of the mounting groove, so that the mounting groove can be sealed to prevent leakage when compressed air enters the vent through the external air hole.

[0032] Further preferably, in order to ensure the overall sealing of the utility model while being able to better fix the connection with the automobile drying tank 200 and the base 300, the adapter seat of the present embodiment is provided with an adapter stud 12, and the gas channel 11 adopts a center hole penetrating the adapter stud 12, and the center hole is a stepped hole structure opened in the adapter stud 12, and the inner diameter of the lower part of the stepped hole is greater than the inner diameter of the upper part, and the inner wall of the lower part of the stepped hole is provided with an internal thread interface 6 for connecting to the air vent of the base, and an external thread interface 7 is provided on the outer wall of the adapter stud 12 away from the internal thread interface 6. The external thread interface 7 is used to connect to the inner cavity gas port of the automobile drying tank 200, so that the connection is more firm and the sealing is better.

[0033] There is no specific limitation on the connection method between the adapter stud 12 and the adapter platform. The adapter platform and the adapter stud 12 can adopt an integrally formed structure or a split structure with a fixed connection. If a split structure is adopted, an O-ring 10 is provided between the adapter platform and the adapter stud 12 to improve the sealing performance and avoid gas leakage. The bottom of the adapter platform is flush with the bottom of the adapter stud 12, which is convenient for sealing connection with the upper end surface of the base 300.

[0034] The vent hole 8 is provided on the transfer platform. The vent hole 8 of this embodiment is a conical structure, and its inner diameter gradually increases from the end close to the filter device 4 to the end of the outer cavity of the automobile drying tank 200. By changing the internal cross-sectional area of ​​the vent hole 8, the pressure of the gas flowing through the vent hole 8 is changed. When the compressed air passes through the conical vent hole 8, the volume of the vent hole 8 is expanded, so that the air pressure is reduced, thereby adiabatic expansion occurs, and the gas temperature is reduced (Joule-Thomson effect), thereby diluting the moisture in the compressed air, so that the moisture follows the flow of the gas and adheres to the inner surface of the automobile drying tank 200.

[0035] In order to collect moisture on the inner surface of the automobile drying tank 200, the upper end surface of the transfer platform in this embodiment is fixedly sealed and connected to the bottom of the automobile drying tank 200, and a ring-shaped water collecting tank 5 is provided on the upper end surface of the transfer platform, and the top notch of the water collecting tank 5 is connected to the outer cavity of the automobile drying tank 200; one end of the vent hole 8 passes through the water collecting tank 5 and is connected to the outer cavity of the automobile drying tank 200, and part of the water droplets on the inner surface of the automobile drying tank 200 flow back to the water collecting tank 5 due to gravity.

[0036] When the utility model works normally, Figure 4As shown in the figure, the direction of the dotted arrow is the direction of gas flow. The compressed air is transported to the filter device 4 through the air inlet end, isolating the carbon deposits and large particles, and at the same time disrupting the air flow direction, so that the water vapor and oil gas in the air are adsorbed on the filter screen surface of the filter device 4, thereby forming liquid water droplets and oil droplets, which are isolated on the filter screen of the filter device 4. The compressed air preliminarily purified by the filter device 4 passes through the vent hole 8 of the conical structure, the volume of the vent hole expands, the gas pressure decreases, and adiabatic expansion occurs, causing the gas temperature to drop (Joule-Thomson effect), thereby diluting the moisture in the compressed air, so that it follows the flow of gas and adheres to the inner surface of the automobile drying tank 200, and part of the water droplets on the inner surface flow back to the water collection tank 5 due to gravity. The diluted air then enters the original automobile drying tank 200, is dried and cleaned by the molecular sieve, enters the inner cavity of the automobile drying tank 200, and then passes through the gas channel 11 of the adapter stud 12 to the gas outlet of the automobile drying tank 200, and enters the gas-using component through the vent of the base 300. When the gas passes through the gas channel of the adapter stud 12, part of the gas enters the gas storage tank 3 through the connecting air pipe, and the normal air intake work is completed.

[0037] When the exhaust gas is regenerated, Figure 5 As shown, the direction of the dotted arrow in the figure is the direction of gas flow. After the air pressure on the vehicle rises to the standard air pressure, the automobile drying tank 200 is exhausted, and the pressure at the air inlet end drops to the normal atmospheric pressure. Under the action of the pressure difference, the pure compressed air is blown back to the automobile drying tank 200 of the original vehicle through the gas channel 11 of the adapter stud 12. Since the water collection tank 5 is relatively shallow, under the action of the gas purge force, it flows through the automobile drying tank, so that the water on the water collection tank 5 is compressed and accelerated through the conical vent hole 8, and then the metal mesh compression filter element of the filter device 4 is flushed, and the impurities on its surface are taken away and discharged into the atmosphere. Due to the effect of the pressure difference, the clean compressed gas in the gas storage tank 3 is also slowly blown into the gas channel 11 of the adapter stud 12 through the connecting air pipe 2, and flows through the automobile drying tank 200, and the water collection tank 5 and the metal mesh compression filter element of the filter device 4 are blown clean again. At the same time, the back-blowing airflow can purge the molecular sieve in the automobile drying tank 200, remove the impurities on its surface, and make it participate in the next working cycle with better performance.

[0038] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A filtering and regenerating device for an automobile drying tank, characterized in that: include: The adapter is fixedly arranged between the automobile drying tank and the base, and is provided with a gas passage connecting the inner cavity of the automobile drying tank and the vent of the base, and the adapter is provided with a vent hole connecting the outer cavity of the automobile drying tank; A gas storage tank connected to the gas channel via a connecting gas pipe; The filter device is installed at one end of the vent hole away from the automobile drying tank.

2. The filtering and regenerating device for automobile drying tank according to claim 1, characterized in that: The adapter seat includes an adapter stud, the gas channel runs through the adapter stud, one end of the adapter stud is connected to the inner cavity gas port of the automobile drying tank through an external thread, and the other end of the adapter stud is connected to the vent of the base through an internal thread.

3. The filtering and regenerating device for a car drying tank according to claim 2, characterized in that: The adapter seat also includes an adapter platform, which is arranged around the outside of the adapter stud, and the adapter platform and the adapter stud are integrally formed; The vent hole is arranged on the transfer platform.

4. The filtering and regenerating device for automobile drying tank according to claim 2, characterized in that: The adapter seat also includes an adapter platform, which is arranged around the outside of the adapter stud, and an O-ring is arranged between the adapter platform and the adapter stud; the bottom of the adapter platform is flush with the bottom of the adapter stud; and the vent hole is opened on the adapter platform.

5. The filtering and regenerating device for automobile drying tank according to claim 1, characterized in that: The filtering device is a metal mesh compression filter element.

6. The filtering and regenerating device for automobile drying tank according to claim 1, characterized in that: The vent hole is a conical structure, and its inner diameter gradually increases from one end close to the filter device to one end of the outer cavity of the automobile drying tank.

7. The filtering and regenerating device for an automobile drying tank according to claim 3 or 4, characterized in that: The upper end surface of the transfer platform is fixedly sealed and connected to the bottom of the automobile drying tank. A ring-shaped water collecting tank is provided on the upper end surface of the transfer platform. The notch on the top of the water collecting tank is connected to the outer cavity of the automobile drying tank. One end of the vent passes through the water collecting tank and is connected to the outer cavity of the automobile drying tank.

8. The filtering and regenerating device for an automobile drying tank according to claim 3 or 4, characterized in that: An annular mounting groove is provided on the bottom end surface of the adapter, the filter device is fixedly arranged in the mounting groove, the bottom of the vent passes through the mounting groove and is connected with the filter device; the bottom end surface of the adapter is fixedly and sealedly connected with the base, and the mounting groove is connected with the external air hole on the base.

9. The filtering and regenerating device for a car drying tank according to claim 8, characterized in that: A rectangular sealing ring is arranged on the bottom end surface of the transfer platform, and the rectangular sealing ring is in sealing contact with the base; the rectangular sealing ring is arranged on the outside of the installation groove.

10. The filtering and regenerating device for automobile drying tank according to claim 2, characterized in that: The gas passage includes a stepped hole structure opened in the adapter stud, the inner diameter of the lower part of the stepped hole is larger than the inner diameter of the upper part, the inner wall of the lower part of the stepped hole is provided with an internal thread interface for connecting to the base vent, and an external thread interface is provided on the outer wall of the adapter stud away from the internal thread interface, and the external thread interface is used to connect to the inner cavity gas port of the automobile drying tank.

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