Compressed air supply device for operating vehicle air suspension system

Abstract

The utility model relates to the technical field of air supply equipment, in particular to a compressed air supply device for operating a vehicle air suspension system, which comprises a compressor, a water separation device, a first communicating pipe, a second communicating pipe and a dryer device. Wherein the compressor is provided with an exhaust end, and the water separation device and the dryer device are sequentially connected to the second communicating pipe in the air inflation direction of the air using unit. The water separation device is installed between the compressor and the dryer device, the water separation device is used for drying gas before the gas enters the dryer device, moisture entering the dryer device is reduced, the drying pressure of the dryer device is relieved, and therefore the service life of the dryer device is prolonged; moreover, through primary drying of the water separation device and secondary drying of the dryer device, the gas drying effect is improved, thorough gas dehumidification is guaranteed, and then smooth regulation and control of the vehicle air suspension device are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply equipment, in particular to a compressed air supply device for operating a vehicle air suspension system. Background Art

[0002] At present, the compressed air supply device for operating a vehicle air suspension system mostly contains various valve structures for regulating the supply state of compressed air. However, due to the use environment of the vehicle, the valve structure is always connected to the atmospheric environment. When in a high-humidity environment, there will be water vapor inside the valve structure, and the accumulated water vapor is difficult to discharge, resulting in rust of the valve structure and icing phenomenon, affecting the normal function. Therefore, generally, a dryer assembly is equipped in the gas pipeline for drying the gas. Due to the long-term use of the dryer assembly and insufficient reverse regeneration of the dryer assembly, the drying effect will decline, and the dryer assembly needs to be frequently replaced to achieve a better drying effect. Its service life is short, and it is also easy to affect the safe use of the valve structure. Summary of the Utility Model

[0003] The utility model provides a compressed air supply device for operating a vehicle air suspension system to solve the defect that the dryer assembly in the background art has a short service life and needs to be frequently replaced.

[0004] The utility model provides a compressed air supply device for operating a vehicle air suspension system, including: a compressor, a first connecting pipe, a second connecting pipe, a water separation device, and a dryer device;

[0005] Wherein, the compressor has an exhaust end and an intake end;

[0006] The first connecting pipe is connected between the intake end and the atmosphere;

[0007] The second connecting pipe is connected between the exhaust end and the gas-using unit;

[0008] The water separation device and the dryer device are sequentially connected to the second connecting pipe along the direction of inflating the gas-using unit.

[0009] According to a compressed air supply device for operating a vehicle air suspension system provided by the utility model, the water separation device includes:

[0010] An air-water separator, which has an air inlet, an air outlet, and a liquid discharge port. The air-water separator is arranged on the second connecting pipe. The air inlet is connected to the exhaust end, and the air outlet is connected to the dryer device.

[0011] According to a compressed air supply device for operating a vehicle air suspension system provided by the utility model, the water separation device further includes:

[0012] A heating unit is disposed near the gas-water separator and at the liquid discharge port.

[0013] According to a compressed air supply device for operating a vehicle air suspension system provided by the present invention, the water separation device further includes:

[0014] A drain valve is disposed at the liquid discharge port.

[0015] According to a compressed air supply device for operating a vehicle air suspension system provided by the present invention, it further includes: a deflation device;

[0016] The deflation device includes:

[0017] An exhaust valve having a first valve port, a second valve port, and a third valve port. The first valve port is communicated with a second connecting pipe, and the second valve port is communicated with the atmosphere;

[0018] A pilot valve is connected to the third valve port.

[0019] According to a compressed air supply device for operating a vehicle air suspension system provided by the present invention, the compressor has an air inlet end;

[0020] The pilot valve has a fourth valve port, a fifth valve port, and a sixth valve port. The fourth valve port is communicated with the third valve port, the fifth valve port is communicated with a gas-using unit, and the sixth valve port is communicated with the air inlet end.

[0021] According to a compressed air supply device for operating a vehicle air suspension system provided by the present invention, it further includes:

[0022] A third connecting pipe is connected between the second connecting pipe and the first valve port.

[0023] According to a compressed air supply device for operating a vehicle air suspension system provided by the present invention, it further includes:

[0024] A fourth connecting pipe is connected between the sixth valve port and the atmosphere.

[0025] A compressed air supply device for operating a vehicle air suspension system provided by the utility model comprises: a compressor, a first connecting pipe, a second connecting pipe, a water separation device and a dryer device. Wherein, the compressor has an exhaust end and an intake end; the first connecting pipe is connected between the intake end and the atmosphere; the second connecting pipe is connected between the exhaust end and the gas-using unit; the water separation device and the dryer device are sequentially connected to the second connecting pipe along the direction of inflating the gas-using unit. By installing the water separation device between the compressor and the dryer device, the water separation device dries the gas before entering the dryer device, reducing the moisture entering the dryer device, reducing the drying pressure of the dryer device, thereby improving the service life of the dryer device; moreover, through the primary drying of the water separation device and the secondary drying of the dryer device, the gas drying effect is improved, ensuring thorough dehumidification of the gas, and further ensuring the smooth regulation of the vehicle air suspension device. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of a compressed air supply device for operating a vehicle air suspension system provided in one embodiment of the present utility model.

[0028] Reference Signs:

[0029] 1: Compressor; 2: Water separation device; 21: Gas-water separator; 22: Heating unit; 23: Drain valve; 3: Dryer device; 4: Exhaust valve; 41: First valve port; 42: Second valve port; 43: Third valve port; 5: Pilot valve; 51: Fourth valve port; 52: Fifth valve port; 53: Sixth valve port; 6: First connecting pipe; 7: Second connecting pipe; 8: Third connecting pipe; 10: Fourth connecting pipe; 11: Gas-using unit. Detailed Embodiments

[0030] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model in conjunction with the drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0031] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0033] In the embodiments of the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0034] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0035] The following is combined with Figure 1Describe a compressed air supply device for operating a vehicle air suspension system of the present utility model. The compressed air supply device for operating a vehicle air suspension system includes: a compressor 1, a water separation device 2, a first connecting pipe 6, a second connecting pipe 7, a dryer device 3, etc.

[0036] Among them, the compressor 1 has an exhaust end and an intake end; the first connecting pipe 6 is connected between the intake end and the atmosphere; the second connecting pipe 7 is connected between the exhaust end and the gas-using unit 11; the water separation device 2 and the dryer device 3 are sequentially connected to the second connecting pipe 7 along the direction of inflating the gas-using unit 11.

[0037] The exhaust end of the compressor 1 is connected to the water separation device 2 and the dryer device 3 through the second connecting pipe 7, so that the exhaust of the compressor 1 passes through the water separation device 2 and the dryer device 3 in sequence. Before the exhaust enters the dryer device 3, the water separation device 2 first separates the moisture in the gas. Specifically, the exhaust end of the compressor 1 is connected to the water separation device 2 downstream thereof through a connecting pipe, and the water separation device 2 is connected to the dryer device 3 downstream thereof through the second connecting pipe 7, thereby realizing the function of removing a part of the moisture in the gas through the water separation device 2 before the gas enters the dryer device 3. The water separation device 2 is used for primary drying of the gas, and the dryer device 3 is used for secondary drying of the gas. Due to the primary drying effect of the water separation device 2, the drying pressure of the dryer device 3 is reduced. On the one hand, its service life is improved, and on the other hand, the drying efficiency is improved, ensuring thorough dehumidification of the gas, and thus ensuring the smooth regulation of the vehicle air suspension device.

[0038] In the prior art of the present utility model, in the technical solution of arranging the dryer device 3 at the exhaust end of the compressor 1, there are problems that the dryer device 3 is used for a long time and the reverse regeneration is not sufficient each time, resulting in a decline in its drying effect and a shortening of its service life; moreover, when the dryer device 3 reaches the end of its service life, water molecules will enter the gas-using unit 11, corroding the gas-using unit 11. At the same time, in a low-temperature environment, the dryer device 3 is prone to icing, resulting in the compressor 1 being unable to supply air to the gas-using unit 11, and the gas-using unit 11 being unable to exhaust air when discharging air outward. A compressed air supply device for operating a vehicle air suspension system provided by the present application is used to solve the above problems. A water separation device 2 is arranged upstream of the dryer device 3. The water separation device 2 can separate the vast majority of water molecules in the wet high-pressure gas discharged from the compressor 1, so that there are very few water molecules to be adsorbed in the dryer device 3, thereby improving the service life of the dryer device 3 and improving the drying effect, ensuring the timely discharge of moisture in the gas.

[0039] A compressed air supply device for operating a vehicle air suspension system provided by the present utility model includes: a compressor 1, a water separation device 2, a first connecting pipe 6, a second connecting pipe 7, and a dryer device 3. Among them, the compressor 1 has an exhaust end and an intake end; the first connecting pipe 6 is connected between the intake end and the atmosphere; the second connecting pipe 7 is connected between the exhaust end and the gas-using unit 11; the water separation device 2 and the dryer device 3 are sequentially connected to the second connecting pipe along the direction of inflating the gas-using unit. By installing the water separation device 2 between the compressor 1 and the dryer device 3, the water separation device 2 is used to dry the gas before entering the dryer device 3, reducing the moisture entering the dryer device 3, reducing the drying pressure of the dryer device 3, and thus improving the service life of the dryer device 3; moreover, through the primary drying of the water separation device 2 and the secondary drying of the dryer device 3, the gas drying effect is improved, ensuring thorough dehumidification of the gas, and further ensuring the smooth regulation of the vehicle air suspension device.

[0040] In one embodiment of the present utility model, the water separation device 2 includes: a gas-water separator 21, which is provided on the second connecting pipe 7 and has an air inlet, an air outlet, and a liquid discharge port. The air inlet is connected to the exhaust end, and the air outlet is connected to the dryer device 3. In this embodiment, the exhaust gas of the compressor 1 is introduced through the air inlet of the gas-water separator 21, and the gas-water separator 21 separates the gas and the liquid. The separated gas is discharged from the air outlet to the dryer device 3, and the separated liquid is discharged from the liquid discharge port. In this embodiment, the liquid in the exhaust gas of the compressor 1 is separated by the gas-water separator 21, so as to achieve the purpose of dehumidification.

[0041] In one embodiment of the present utility model, the water separation device 2 further includes: a heating unit 22, which is disposed close to the gas-water separator 21 and is provided at the liquid discharge port. Since the compressed air supply device for operating the vehicle air suspension system may be in a low-temperature environment, it may cause icing at the liquid discharge port of the gas-water separator 21, resulting in the inability to discharge the liquid and possible dehumidification failure. Based on the above problems, the present utility model provides an embodiment in which a heating unit 22 is provided at a position close to the gas-water separator 21, and the heating unit 22 is used to heat the liquid discharge port of the gas-water separator 21 to avoid the problem that the liquid cannot be discharged due to icing at its liquid discharge port, ensuring smooth liquid discharge and efficient dehumidification.

[0042] In one embodiment of the present utility model, the water separation device 2 further includes: a drain valve 23, which is provided at the liquid discharge port. In this embodiment, by providing the drain valve 23 at the liquid discharge port of the gas-liquid separator 21, the drainage state is controlled. Preferably, the heating unit 22 is located below the drain valve 23 to heat the drain port of the drain valve 23 and its vicinity to ensure smooth drainage. The heating unit 22 preferably uses an electric heater with a waterproof function, or the vicinity of the drain valve 23 can be heated by providing a metal heat conducting plate outside the drain valve 23 and heating the metal heat conducting plate with an electric heater.

[0043] In one embodiment of the present utility model, the compressed air supply device for operating the vehicle air suspension system further includes: a deflation device, which is connected to the exhaust end. Specifically, the deflation device includes: an exhaust valve 4 and a pilot valve 5. Among them, the exhaust valve 4 has a first valve port 41, a second valve port 42 and a third valve port 43. The first valve port 41 is communicated with the exhaust end, and the second valve port 42 is communicated with the atmosphere; the pilot valve 5 is connected to the third valve port 43. It should be understood that the exhaust valve 4 and the pilot valve 5 in the embodiment of the present utility model constitute the "pilot exhaust valve" commonly described in the art.

[0044] Specifically, the pilot valve 5 has a fourth valve port 51, a fifth valve port 52 and a sixth valve port 53. The fourth valve port 51 is communicated with the third valve port 43, the fifth valve port 52 is communicated with the air-using unit 11, and the sixth valve port 53 is communicated with the intake end.

[0045] Specifically, the exhaust valve 4 can adopt a pneumatic four-way valve (one valve port is not marked). When the air-using unit 11 needs to deflate to the outside, the high-pressure gas in the air-using unit 11 enters through the fifth valve port 52 in the pilot valve 5 and is discharged from the fourth valve port 51 into the third valve port 43 of the exhaust valve 4. Under the action of the high pressure, the exhaust valve 4 is opened. At this time, the dry high-pressure gas in the air-using unit 11 passes through the dryer device in the reverse direction, absorbs the moisture in the dryer device 3, becomes a humid high-pressure gas, so that the water molecule adsorbent in the dryer device 3 is regenerated in the reverse direction and is discharged to the atmosphere through the exhaust valve 4, thereby realizing deflation. When the air-using unit 11 deflates to the desired pressure, the pilot valve 5 is first powered off, and the pilot valve 5 resets under the action of the spring, that is, the fourth valve port 51 and the sixth valve port 53 are communicated. At this time, the high-pressure gas at the third valve port 43 of the exhaust valve 4 is discharged to the atmosphere through the fourth valve port 51 and the sixth valve port 53. Therefore, the pressure at the third valve port 43 of the exhaust valve 4 is the atmospheric pressure, and under the action of the spring, the exhaust valve 4 closes, thereby realizing the stop of deflation.

[0046] In one embodiment of the present utility model, the compressor 1 has an air inlet end, a water separation device 2 and a dryer device 3; when the gas-using unit 11 needs to be inflated, the compressor 1 absorbs humid air from the outside through the air inlet end, compresses it into humid high-pressure gas, first filters out the vast majority of moisture through the water separation device 2, and then dries it again through the dryer device 3, and finally supplies dry high-pressure gas to the gas-using unit 11.

[0047] It should be understood that the above-mentioned respective valve ports can be switched between two states of open and closed, and the switching methods include but are not limited to manual opening / closing, or automatic opening / closing according to gas pressure or according to the actual road conditions, transmitting an electrical signal through the vehicle information processing unit to achieve automatic opening / closing.

[0048] In one embodiment of the present utility model, the compressed air supply device for operating the vehicle air suspension system further includes: a first connecting pipe 6 and a second connecting pipe 7. Among them, the first connecting pipe 6 is connected between the air inlet end and the atmosphere; the second connecting pipe 7 is connected between the exhaust end and the gas-using unit 11. In the specific implementation of this embodiment, gas is conveyed into the compressor 1 through the first connecting pipe 6, and after being pressurized by the compressor 1, the compressed gas is discharged through the second connecting pipe 7, and successively passes through the water separation device 2 and the dryer device 3 for gas drying so as to supply dry high-pressure gas to the gas-using unit 11.

[0049] In one embodiment of the present utility model, the compressed air supply device for operating the vehicle air suspension system further includes: a third connecting pipe 8. Among them, the third connecting pipe 8 is connected between the second connecting pipe 7 and the first valve port 41; in the specific implementation of this embodiment, one end of the third connecting pipe 8 is connected to the second connecting pipe 7, the other end is connected to the first valve port 41 of the exhaust valve 4, and one end of the second connecting pipe 7 is connected to the exhaust end of the compressor 1, and the other end is connected to the gas-using unit 11, realizing that the gas drying and deflation functions do not affect each other.

[0050] In the embodiment as Figure 1 shown, the first valve port 41 is the left end interface of the exhaust valve 4, the second valve port 42 is the right end interface of the exhaust valve 4, the third valve port 43 is the upper end interface of the exhaust valve 4; the fourth valve port 51 is the left end interface of the pilot valve 5, the fifth valve port 52 is the lower right end interface of the pilot valve 5, and the sixth valve port 53 is the upper right end interface of the pilot valve 5.

[0051] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, that is, they may be located in one place or distributed to multiple units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A compressed air supply device for operating a vehicle air suspension system, characterized in that include: A compressor (1), a water separation device (2), a first connecting pipe (6), a second connecting pipe (7) and a dryer device (3); Wherein, the compressor (1) has an exhaust end and an intake end; A first connecting pipe (6), connected between the air inlet end and the atmosphere; A second connecting pipe (7) connected between the exhaust end and the gas using unit (11); The water separation device (2) and the dryer device (3) are sequentially connected to the second connecting pipe (7) along the direction of charging the gas consumption unit (11).

2. A compressed air supply device for operating a vehicle air suspension system according to claim 1, characterized in that: The water separation device (2) comprises: The gas-water separator (21) has an air inlet, an air outlet and a liquid discharge port. The gas-water separator (21) is arranged on the second connecting pipe (7). The air inlet is connected to the exhaust end, and the exhaust port is connected to the dryer device (3).

3. A compressed air supply device for operating a vehicle air suspension system according to claim 2, characterized in that: The water separation device (2) further comprises: The heating unit (22) is arranged close to the gas-water separator (21) and is arranged at the liquid discharge port.

4. A compressed air supply device for operating a vehicle air suspension system according to claim 2, characterized in that: The water separation device (2) further comprises: A drain valve (23), wherein the drain valve (23) is arranged at the drain port.

5. A compressed air supply device for operating a vehicle air suspension system according to claim 1, characterized in that: Also includes: Deflation device; The deflation device comprises: An exhaust valve (4) having a first valve port (41), a second valve port (42) and a third valve port (43), wherein the first valve port (41) is connected to the second connecting pipe (7), and the second valve port (42) is connected to the atmosphere; The pilot valve (5) is connected to the third valve port (43).

6. A compressed air supply device for operating a vehicle air suspension system according to claim 5, characterized in that: The pilot valve (5) has a fourth valve port (51), a fifth valve port (52) and a sixth valve port (53); the fourth valve port (51) is connected to the third valve port (43); the fifth valve port (52) is connected to the common air unit (11); and the sixth valve port (53) is connected to the air inlet end.

7. A compressed air supply device for operating a vehicle air suspension system according to claim 5, characterized in that: Also includes: The third connecting pipe (8) is connected between the second connecting pipe (7) and the first valve port (41).

8. A compressed air supply device for operating a vehicle air suspension system according to claim 6, characterized in that: Also includes: The fourth connecting pipe (10) is connected between the sixth valve port (53) and the atmosphere.

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