Centralized gas supply system and vehicle
By reusing high-pressure gas and using circulating pump pressurization technology in the centralized gas supply system, the problems of high-pressure gas waste and energy consumption have been solved, achieving efficient and energy-saving gas recycling and reducing the system failure rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, high-pressure gas needs to be depressurized when supplying gas to high-pressure and low-pressure gas units, resulting in gas waste and increased energy consumption.
A centralized gas supply system is adopted. The vent of the first gas-using unit is fluidly connected to the second gas storage tank through the first pressure reducing valve, so as to realize the reuse of high-pressure gas. The first circulation pump is used to repressurize the discharged gas and replenish it to the gas storage tank, thus constructing a highly efficient and energy-saving closed-loop system.
It reduces high-pressure gas waste, lowers energy consumption, reduces aerodynamic noise and system failure rate, and achieves gas recycling.
Smart Images
Figure CN121803804A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle component technology, and in particular to a centralized gas supply system and vehicle. Background Technology
[0002] Vehicles use gas compressors to provide a high-flow, high-pressure air source, which can then be applied to air-using units such as air suspension, tires, oxygen generation, and amplifier ventilation. These air-using units have different applicable air pressures and can be divided into two types: high-pressure air-using units and low-pressure air-using units, or even more types.
[0003] Gas compressors typically supply high-pressure gas to high-pressure gas-consuming units. When supplying gas to low-pressure gas-consuming units, the high-pressure gas needs to be depressurized, resulting in waste of the high-pressure gas. Alternatively, gas compressors supply gas at a pressure higher than the applicable pressure for high-pressure gas-consuming units to ensure efficient gas supply. When supplying gas to both high-pressure and low-pressure gas-consuming units, the high-pressure gas needs to be depressurized, again resulting in waste of the high-pressure gas. Summary of the Invention
[0004] The embodiments of this application aim to provide a centralized gas supply system and vehicle, so as to at least improve the problem of high-pressure gas waste.
[0005] In order to solve the above-mentioned technical problems, the embodiments of this application adopt the following technical solutions: In a first aspect, embodiments of this application provide a centralized gas supply system, which includes at least a gas source device, a first gas consumption module, and a second gas consumption module. The first gas consumption module includes a first gas storage tank and a plurality of first gas consumption units, wherein the first gas storage tank fluidly connects the gas source device and the first gas consumption units. The second gas consumption module includes a second gas storage tank, a plurality of second gas consumption units, and a first pressure reducing valve. The vent of the first gas consumption unit is fluidly connected to the second gas storage tank through a vent circulation path, wherein the first pressure reducing valve is provided on the vent circulation path, and the second gas storage tank is fluidly connected to the second gas consumption units. The gas pressure of the second gas consumption unit is lower than that of the first gas consumption unit.
[0006] In some embodiments, the second gas storage tank is also in fluid communication with the gas source device; the second gas module further includes a second pressure reducing valve, which connects the gas source device to the second gas storage tank in fluid communication.
[0007] In some embodiments, the centralized gas supply system further includes a distribution valve that connects the gas source device to the first gas storage tank and the second gas storage tank in fluid communication, and the distribution valve is used to independently control the gas flow between the first gas storage tank and the second gas storage tank and the gas source device.
[0008] In some embodiments, the second gas module further includes a first safety valve, which connects the first pressure reducing valve to the second gas storage tank in fluid communication.
[0009] In some embodiments, the first gas-using module further includes a first control valve, which connects the vent of the first gas-using unit to the first pressure-reducing valve and the atmospheric environment fluidly; the first control valve is used to independently control the vent of the first gas-using unit to close or connect to the first pressure-reducing valve or connect to the atmospheric environment.
[0010] In some embodiments, the second gas-using module further includes a second control valve and a first circulation pump; the vent of the second gas-using unit, the second control valve, the first circulation pump, and the first gas storage tank are sequentially connected; the second control valve is used to independently control the vent of the second gas-using unit to close or connect with the first circulation pump or connect with the atmospheric environment.
[0011] In some embodiments, the centralized gas supply system further includes a third gas consumption module, which includes a third gas storage tank, a plurality of third gas consumption units, and a third pressure reducing valve. The vent of the second gas consumption unit is in fluid communication with the third gas storage tank through a vent circulation path. The third pressure reducing valve is provided on the vent circulation path. The third gas storage tank is in fluid communication with the third gas consumption units. The gas pressure of the third gas consumption units is lower than that of the second gas consumption units.
[0012] In some embodiments, the third gas-using module further includes a fourth control valve and a second circulation pump; the vent of the third gas-using unit, the fourth control valve, the second circulation pump, and the second gas storage tank are sequentially connected; the fourth control valve is used to independently control the vent of the third gas-using unit to close, connect with the second circulation pump, or connect with the atmospheric environment.
[0013] In some embodiments, the gas pressure range of the first gas-using unit is P1, where P1 > 200 kPa; and / or, the gas pressure range of the second gas-using unit is P2, where 100 kPa ≤ P2 < 200 kPa; and / or, the gas pressure range of the third gas-using unit is P3, where 40 kPa ≤ P3 < 100 kPa.
[0014] Secondly, embodiments of this application provide a vehicle that includes a centralized gas supply system as described in any embodiment of the first aspect.
[0015] The centralized gas supply system of this application embodiment connects the vent of the first gas-consuming unit to the second gas storage tank via a first pressure reducing valve. When the first gas-consuming unit exhausts gas, the gas is replenished to the second gas storage tank and can then be utilized by the second gas-consuming unit. In other words, the exhaust gas emitted by the first gas-consuming unit can be utilized by the second gas-consuming unit, achieving the reuse of high-pressure dried gas, reducing the waste of high-pressure gas, and lowering the energy consumption of the centralized gas supply system.
[0016] The system utilizes a first circulation pump to repressurize the gas discharged from the first gas-consuming unit and replenish it to the first gas storage tank. Compared to a gas source device directly compressing atmospheric air to the same pressure from the atmosphere, the first circulation pump requires less work, reducing the energy consumption of the centralized gas supply system. Furthermore, the gas can circulate within the centralized gas supply system, enabling gas recycling, reducing gas exchange with the atmosphere, decreasing aerodynamic noise, and reducing impurities in the gas, thus lowering the system's failure rate.
[0017] In addition, the entire centralized gas supply system has the function of high-pressure gas being used multiple times from relatively high-pressure gas consumption units to relatively low-pressure gas consumption units, and also has the function of recycling from relatively low-pressure gas consumption units to relatively high-pressure gas consumption units. The controller can dynamically adjust according to the actual situation of each gas consumption unit, and the gas is discharged out as little as possible, forming a highly efficient and energy-saving closed-loop system.
[0018] The vehicle in this embodiment of the application adopts the above-mentioned centralized air supply system. Based on the centralized air supply system, the exhaust gas emitted by the first air consumption unit can be used to realize the reuse of gas, thereby reducing the energy consumption of the vehicle. Based on the first circulation pump, the gas discharged by the first air consumption unit can be repressurized and replenished to the first air storage tank to realize the recycling of gas, reduce aerodynamic noise, and reduce the failure rate of the centralized air supply system.
[0019] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description
[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0021] Figure 1 This is a schematic diagram of the structure of a centralized gas supply system according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a centralized gas supply system according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a centralized gas supply system according to an embodiment of this application; Figure 4 This is a schematic diagram of the structure of a centralized gas supply system according to an embodiment of this application; Figure 5 This is a schematic diagram of a centralized gas supply system according to an embodiment of this application.
[0022] The reference numerals in the detailed embodiments are as follows: 100. Centralized gas supply system; 1. Gas source device; 2. First gas-consuming module; 21. First gas storage tank; 22. First gas-consuming unit; 23. First control valve; 3. Second gas-consuming module; 31. Second gas storage tank; 32. Second gas-consuming unit; 33. First pressure-reducing valve; 34. Second pressure-reducing valve; 35. First safety valve; 36. Second control valve; 37. First circulation pump; 38. Third control valve; 4. Distribution valve; 5. Third gas consumption module; 51. Third gas storage tank; 52. Third gas consumption unit; 53. Third pressure reducing valve; 54. Fourth pressure reducing valve; 55. Second safety valve; 56. Fourth control valve; 57. Second circulation pump; 58. Fifth control valve; 6. Gas module N-1; 7. Gas module N. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. It should be noted that when an element is described as being "fixed" to another element, it can be directly on the other element, or one or more intervening elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intervening elements may exist between them. It should be noted that, unless otherwise specified, the various features in the embodiments of this application can be combined with each other, all within the scope of protection of this application. Furthermore, although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different module division or in a different order than that shown in the device schematic diagram or the flowchart.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0025] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0026] In the description of the embodiments of this application, the terms "first," "second," etc., are used to define components merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.
[0027] The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items. Furthermore, the technical features involved in the different embodiments of this application described below may be combined with each other as long as they do not conflict with each other.
[0028] Firstly, please refer to Figure 1This application provides a centralized gas supply system 100, which includes at least a gas source device 1, a first gas consumption module 2, and a second gas consumption module 3. The first gas consumption module 2 includes a first gas storage tank 21 and a first gas consumption unit 22, with the first gas storage tank 21 providing fluid communication between the gas source device 1 and the first gas consumption unit 22. The second gas consumption module 3 includes a second gas storage tank 31, a second gas consumption unit 32, and a first pressure reducing valve 33. The vent of the first gas consumption unit 22 is fluidly connected to the second gas storage tank 31 through a vent circulation path, and the first pressure reducing valve 33 is provided on the vent circulation path, allowing fluid communication between the second gas storage tank 31 and the second gas consumption unit 32. The gas pressure consumed by the second gas consumption unit 32 is lower than that consumed by the first gas consumption unit 22. Optionally, the gas source device 1, the first gas storage tank 21, the first gas consumption unit 22, the second gas storage tank 31, the second gas consumption unit 32, and the first pressure reducing valve 33 are connected by pipelines. Optionally, there may be several first gas-using units 22 and / or second gas-using units 32.
[0029] The aforementioned gas source device 1 includes, but is not limited to, air pumps and air compressors. Gas source device 1 is used to provide high-pressure gas, such as gas with a gauge pressure greater than 200 kPa (a common unit of pressure, kilopascal).
[0030] The first gas storage tank 21 and the second gas storage tank 31 can be made of metal, plastic, or other materials and can contain high-pressure gas. The first gas storage tank 21 and the second gas storage tank 31 are used to store gases of different pressures, thereby providing different pressure gases to the first gas-consuming unit 22 and the second gas-consuming unit 32, respectively. That is, through a gas source device 1, gases of different pressures can be stored in the first gas storage tank 21 and the second gas storage tank 31 to provide gases of different pressures.
[0031] Regarding the aforementioned first air-using unit 22 and second air-using unit 32, the first air-using unit 22 can be a component requiring high-pressure gas, such as a pneumatic suspension, tires, oxygen generator, or ventilation amplifier; the second air-using unit 32 can be a component requiring medium-pressure gas, such as an active side wing of a seat. The vent of the first air-using unit 22 is used to discharge gas, and the vent circulation path is a pipe or airway for venting. By providing a first pressure-reducing valve 33 in the vent circulation path, gas can be obtained from the vent circulation path and its pressure reduced. Here, "high pressure" and "medium pressure" are relative terms and do not represent specific pressure ranges. Optionally, the air pressure range of the first air-using unit 22 is P1, where P1 > 200 kPa. Optionally, the air pressure range of the second air-using unit 32 is P2, where 100 kPa ≤ P2 < 200 kPa.
[0032] As can be seen from the above, the gas pressure of the first gas module 2 is higher than that of the second gas module 3.
[0033] In related technologies, gas is directly supplied to the second gas storage tank 31 via the gas source device 1. For example, please refer to [reference needed]. Figure 2 The second gas storage tank 31 provides fluid communication between the gas source device 1 and the second gas-consuming unit 32, such as by connecting the gas source device 1 and the second gas storage tank 31 via a pipeline. It is understood that when the gas source device 1 supplies gas to the second gas storage tank 31, the high-pressure gas needs to be depressurized. For example, please refer to [reference needed]. Figure 2 The second gas supply module 3 also includes a second pressure reducing valve 34, which connects the gas source device 1 and the second gas storage tank 31 in fluid communication. For example, the second pressure reducing valve 34 is connected to the gas source device 1 and the second gas storage tank 31 through a pipeline. The second pressure reducing valve 34 can be a fixed-value pressure reducing valve to provide gas with a stable pressure.
[0034] Alternatively, the gas source device 1 can supply gas at a higher pressure than the first gas storage tank 21 to ensure efficient gas supply to the first gas storage tank 21. Thus, when the gas source device 1 supplies gas to both the first and second gas storage tanks 21, the high-pressure gas needs to be reduced in pressure. A pressure reducing valve can be installed between the gas source device 1 and the first gas storage tank 21 to reduce the gas pressure.
[0035] The method described above, which reduces the gas pressure before supplying it to the first gas storage tank 21 and the second gas storage tank 31, results in the waste of high-pressure gas, increasing the energy consumption of the centralized gas supply system 100. In this embodiment, the first pressure reducing valve 33 connects the vent of the first gas-using unit 22 to the second gas storage tank 31 in fluid communication. The first pressure reducing valve 33 can be a fixed-value pressure reducing valve to provide gas with a stable pressure to the second gas storage tank 31. When the first gas-using unit 22 exhausts gas, the gas is replenished to the second gas storage tank 31 and can then be utilized by the second gas-using unit 32. That is, the exhaust gas emitted by the first gas-using unit 22 can be utilized by the second gas-using unit 32, achieving gas reuse, reducing the waste of high-pressure gas, and lowering the energy consumption of the centralized gas supply system 100. The gas discharged by the first gas-using unit 22 is typically high-pressure gas that has already been dried and filtered, thereby achieving the reuse of high-pressure dried gas and reducing the cost of gas drying.
[0036] In some embodiments, please refer to Figure 1 The second gas storage tank 31 may not be connected to the gas source device 1; gas is supplied to the second gas storage tank 31 only through the first gas-consuming unit 22. For other embodiments, please refer to... Figure 2The second gas storage tank 31 is also in fluid communication with the gas source device 1; and the first pressure reducing valve 33 connects the vent of the first gas-using unit 22 to the second gas storage tank 31 in fluid communication. Thus, the second gas-using unit 32 can utilize the exhaust gas emitted by the first gas-using unit 22, and can also obtain gas from the gas source device 1 when the exhaust gas emitted by the first gas-using unit 22 is insufficient, thereby addressing the problem of insufficient gas intake from the first gas-using unit 22 for the second gas storage tank 31. The second gas-using module 3 may further include a second pressure reducing valve 34, which connects the gas source device 1 to the second gas storage tank 31 in fluid communication.
[0037] In some embodiments, please refer to Figure 2 The centralized gas supply system 100 also includes a distribution valve 4, which fluidly connects the gas source device 1 to the first gas storage tank 21 and the second gas storage tank 31. The distribution valve 4 is used to independently control the gas flow between the first gas storage tank 21, the second gas storage tank 31, and the gas source device 1. Exemplarily, the distribution valve 4 includes an inlet (not shown) and at least two outlets (not shown). The inlet is connected to the gas source device 1 via a pipe, and the two outlets are connected to the first gas storage tank 21 and the second gas storage tank 31 via pipes, respectively. The distribution valve 4 controls the gas source device 1 to independently supply gas to the first gas storage tank 21 and the second gas storage tank 31. The distribution valve 4 may include a solenoid valve, an SMA (Shape Memory Alloy) valve, etc., with each valve corresponding to one gas storage tank, allowing for independent control. (See also...) Figure 1 When the gas source device 1 is not in fluid communication with the second gas storage tank 31, the distribution valve 4 is used to control the gas flow between the first gas storage tank 21 and the gas source device 1, that is, to control whether the gas source device 1 supplies gas to the first gas storage tank 21.
[0038] In some embodiments, please refer to Figure 1 and Figure 2 The second gas supply module 3 also includes a first safety valve 35, which connects the first pressure reducing valve 33 to the second gas storage tank 31 in fluid communication. Exemplarily, the first pressure reducing valve 33 and the second gas storage tank 31 are connected via a pipeline, and the first safety valve 35 is located in this pipeline and in fluid communication with the space within the pipeline. When the gas pressure in the pipeline exceeds the safe gas pressure, the first safety valve 35 releases gas to the outside of the pipeline and closes when the gas pressure in the pipeline drops to the safe gas pressure value, or closes when it is below a shut-off pressure value lower than the safe gas pressure value, thereby mitigating the problem of damage to the second gas storage tank 31 and the pipeline under high pressure. Optionally, the safe gas pressure value is 200 kPa, 210 kPa, 220 kPa, etc., and the shut-off pressure value is 180 kPa, 190 kPa, etc. Optionally, the first safety valve 35 is a pneumatic safety valve.
[0039] In some embodiments, please refer to Figure 1 and Figure 2 The first gas-using module 2 also includes a first control valve 23, which connects the vent of the first gas-using unit 22 to the first pressure-reducing valve 33 and the atmospheric environment. The first control valve 23 is used to independently control the vent of the first gas-using unit 22 to close, connect to the first pressure-reducing valve 33, or connect to the atmospheric environment. For example, the first control valve 23 and the distribution valve 4 adopt the same structure. For instance, the first control valve 23 may include a solenoid valve or an SMA valve, and the first control valve 23 has at least two gas supply ports. One gas supply port is connected to the first pressure-reducing valve 33 via a pipe, and the other gas supply port can be directly connected to the atmospheric environment or connected to the atmospheric environment via a pipe. When the gas in the second gas tank 31 is insufficient, the first control valve 23 controls the gas from the vent of the first gas-consuming unit 22 to be supplied to the second gas tank 31 through the first pressure reducing valve 33; when the gas in the second gas tank 31 is sufficient, the first control valve 23 controls the gas from the vent of the first gas-consuming unit 22 to be discharged into the atmosphere; when the first gas-consuming unit 22 does not need to vent, the first control valve 23 controls the vent of the first gas-consuming unit 22 to be closed. Optionally, the first control valve 23 and the distribution valve 4 are integrated into the same valve module. Optionally, the first control valve 23 is a solenoid valve, for example, a three-position three-way valve.
[0040] In some embodiments, please refer to Figure 3 The second gas-using module 3 further includes a second control valve 36 and a first circulation pump 37; the vent of the second gas-using unit 32, the second control valve 36, the first circulation pump 37, and the first gas storage tank 21 are sequentially connected; the second control valve 36 is used to independently control the vent of the second gas-using unit 32 to close, connect to the first circulation pump 37, or connect to the atmospheric environment. The vent of the second gas-using unit 32 is used to discharge gas. Exemplarily, the second control valve 36 and the distribution valve 4 adopt the same structure. For example, the second control valve 36 may include a solenoid valve or an SMA valve, and the second control valve 36 has at least two gas supply ports, one of which is connected to the first circulation pump 37 via a pipe, and the other gas supply port can be directly connected to the atmospheric environment or connected to the atmospheric environment via a pipe. Optionally, the second control valve 36 and the distribution valve 4 are integrated into the same valve module. Optionally, the second control valve 36 is a solenoid valve, for example, a three-position three-way valve.
[0041] The second control valve 36 controls the gas supply from the vent of the second gas-consuming unit 32 to the first circulating pump 37. At this time, the third control valve 38 opens, allowing the gas discharged from the second gas-consuming unit 32 to be repressurized and replenished to the first gas storage tank 21. Compared to the gas source device 1 directly compressing atmospheric air to the same pressure from the atmosphere, the first circulating pump 37 requires less work than the gas source device 1, reducing the energy consumption of the centralized gas supply system 100. Furthermore, the gas can circulate within the centralized gas supply system 100, achieving gas recycling, reducing gas exchange with the atmosphere, reducing aerodynamic noise, and reducing impurities in the gas within the centralized gas supply system 100, thus lowering the failure rate of the centralized gas supply system 100. When the gas quantity in the first gas storage tank 21 is sufficient, the second control valve 36 controls the gas from the vent of the second gas-consuming unit 32 to be discharged into the atmosphere. Optionally, the second control valve 36 can be integrated with the distribution valve 4 into the same valve module.
[0042] In some embodiments, please refer to Figure 3 The second gas supply module 3 also includes a third control valve 38, which connects the first circulation pump 37 to the first gas storage tank 21. The third control valve 38 controls the connection or disconnection between the first circulation pump 37 and the first gas storage tank 21. The third control valve 38 can be any valve that can control on / off switching, such as a two-position, two-way solenoid valve. By setting the third control valve 38, the problem of gas backflow from the first gas storage tank 21 to the first circulation pump 37 when the first circulation pump 37 is not working is improved. Optionally, the third control valve 38 and the distribution valve 4 are integrated into the same valve module.
[0043] In some embodiments, please refer to Figure 4 The centralized gas supply system 100 also includes a third gas consumption module 5, which includes a third gas storage tank 51, a third gas consumption unit 52, and a third pressure reducing valve 53. The vent of the second gas consumption unit 32 is fluidly connected to the third gas storage tank 51 through a vent circulation path. The vent circulation path is equipped with a third pressure reducing valve 53, and the third gas storage tank 51 and the third gas consumption unit 52 are fluidly connected. The gas pressure consumed by the third gas consumption unit 52 is lower than that consumed by the second gas consumption unit 32. The vent of the second gas consumption unit 32 is used to discharge gas. The vent circulation path is a pipe or gas channel for venting gas. By providing a third pressure reducing valve 53 in the vent circulation path, gas can be obtained from the vent circulation path and its pressure reduced. Optionally, the gas source device 1, the third gas storage tank 51, the third gas consumption unit 52, the third pressure reducing valve 53, and the second gas consumption unit 32 are connected by a pipeline. Optionally, there are several third gas consumption units 52.
[0044] The third gas storage tank 51 can be made of metal, plastic, or other materials and can hold high-pressure gas. The third gas storage tank 51 stores gas at a pressure lower than that in the first gas storage tank 21 and the second gas storage tank 31, thereby providing gas at different pressures to the first gas-using unit 22, the second gas-using unit 32, and the third gas-using unit 52, respectively. In other words, through a single gas source device 1, gases at different pressures can be stored in the first gas storage tank 21, the second gas storage tank 31, and the third gas storage tank 51 to provide gas at different pressures.
[0045] The third air-using unit 52 mentioned above can be a component requiring low-pressure gas, such as a support air bag, massage air bag, or kneading air bag. Here, "low pressure" refers to pressure relative to the aforementioned high and medium pressures, and does not represent a specific pressure range. Optionally, the air pressure range of the third air-using unit 52 is P3, where 40 kPa ≤ P3 < 100 kPa.
[0046] The third pressure reducing valve 53 can be a fixed-value pressure reducing valve to provide gas with a stable pressure to the third gas storage tank 51.
[0047] In this embodiment, the second control valve 36 has at least three air supply ports. One air supply port is connected to the first circulating pump 37 via a pipeline, another air supply port can be directly connected to the atmospheric environment or connected to the atmospheric environment via a pipeline, and yet another air supply port is connected to the third air storage tank 51 via a pipeline. This allows for fluid communication between the vent of the second air-using unit 32 and the third air storage tank 51. Optionally, the second control valve 36 is a solenoid valve, such as a four-way valve.
[0048] The vent of the second gas-using unit 32 is fluidly connected to the third gas storage tank 51 via the third pressure-reducing valve 53. The third pressure-reducing valve 53 can be a fixed-pressure valve to provide gas with a stable pressure to the third gas storage tank 51. When the second gas-using unit 32 exhausts gas, the gas is replenished to the third gas storage tank 51 and can then be utilized by the third gas-using unit 52. That is, the exhaust gas emitted by the second gas-using unit 32 can be utilized by the third gas-using unit 52. Furthermore, in the above embodiment, the exhaust gas emitted by the first gas-using unit 22 can be utilized by the second gas-using unit 32, thereby achieving the reuse of high-pressure dried gas, reducing the waste of high-pressure gas, and lowering the energy consumption of the centralized gas supply system 100.
[0049] In some embodiments, the third gas storage tank 51 may not be connected to the gas source device 1, and gas may be supplied to the third gas storage tank 51 only through the second gas consumption unit 32. For other embodiments, please refer to... Figure 4The third gas storage tank 51 is fluidly connected to the gas source device 1 and the third gas consumption unit 52; and the third pressure reducing valve 53 is fluidly connected to the vent of the second gas consumption unit 32 and the third gas storage tank 51. Thus, the third gas consumption unit 52 can utilize the exhaust gas emitted by the second gas consumption unit 32, and can also obtain gas from the gas source device 1 when the exhaust gas emitted by the second gas consumption unit 32 is insufficient, thereby improving the problem of insufficient gas obtained by the third gas storage tank 51 from the second gas consumption unit 32.
[0050] In some embodiments, please refer to Figure 4 The distribution valve 4 also provides fluid communication between the gas source device 1 and the third gas storage tank 51. The distribution valve 4 is used to independently control the gas flow between the first gas storage tank 21, the second gas storage tank 31, and the third gas storage tank 51 and the gas source device 1. Exemplarily, the distribution valve 4 includes an inlet (not shown) and at least three outlets (not shown). The inlet is connected to the gas source device 1 via a pipe, and the three outlets are respectively connected to the first gas storage tank 21, the second gas storage tank 31, and the third gas storage tank 51 via pipes. The distribution valve 4 controls the gas source device 1 to independently supply gas to the first gas storage tank 21, the second gas storage tank 31, and the third gas storage tank 51.
[0051] In some embodiments, please refer to Figure 4 The third gas supply module 5 also includes a fourth pressure reducing valve 54, which connects the gas source device 1 to the third gas storage tank 51 in fluid communication. For example, the fourth pressure reducing valve 54 is connected to the gas source device 1 and the third gas storage tank 51 via a pipeline. The fourth pressure reducing valve 54 can be a fixed-value pressure reducing valve to provide gas with a stable pressure.
[0052] In some embodiments, please refer to Figure 4 The third gas supply module 5 also includes a second safety valve 55, which connects the third pressure reducing valve 53 to the third gas storage tank 51 in fluid communication. Exemplarily, the third pressure reducing valve 53 and the third gas storage tank 51 are connected via a pipeline, and the second safety valve 55 is located in this pipeline and in fluid communication with the space within it. When the gas pressure in the pipeline exceeds the safe gas pressure, the second safety valve 55 releases gas to the outside of the pipeline and closes when the gas pressure in the pipeline drops to the safe gas pressure, or closes at a closing pressure below the safe gas pressure, thereby mitigating the problem of damage to the third gas storage tank 51 and the pipeline under high pressure. Optionally, the safe gas pressure is 100 kPa, 110 kPa, 120 kPa, etc., and the closing gas pressure is 80 kPa, 90 kPa, etc. Optionally, the second safety valve 55 is a pneumatic safety valve.
[0053] In some embodiments, please refer to Figure 4The third gas-using module 5 also includes a fourth control valve 56 and a second circulation pump 57; the vent of the third gas-using unit 52, the fourth control valve 56, the second circulation pump 57, and the second gas storage tank 31 are sequentially fluidly connected; the fourth control valve 56 is used to independently control the vent of the third gas-using unit 52 to close, connect to the second circulation pump 57, or connect to the atmospheric environment. The vent of the third gas-using unit 52 is used to discharge gas. Exemplarily, the fourth control valve 56 and the distribution valve 4 adopt the same structure. For example, the fourth control valve 56 may include a solenoid valve or an SMA valve, and the fourth control valve 56 has at least two gas supply ports, one of which is connected to the second circulation pump 57 through a pipe, and the other gas supply port can be directly connected to the atmospheric environment or connected to the atmospheric environment through a pipe. Optionally, the fourth control valve 56 and the distribution valve 4 are integrated in the same valve module. Optionally, the fourth control valve 56 is a solenoid valve, such as a three-position three-way valve.
[0054] The fourth control valve 56 controls the gas supply from the vent of the third gas-using unit 52 to the second circulation pump 57. At this time, the fifth control valve 58 opens, allowing the gas discharged from the third gas-using unit 52 to be repressurized and replenished to the second gas storage tank 31. Compared to the gas source device 1 directly compressing atmospheric air to the same pressure from the atmosphere, the second circulation pump 57 requires less work than the gas source device 1, reducing the energy consumption of the centralized gas supply system 100. Furthermore, the gas can circulate within the centralized gas supply system 100, achieving gas recycling, reducing gas exchange with the atmosphere, reducing aerodynamic noise, reducing impurities in the gas within the centralized gas supply system 100, and lowering the failure rate of the centralized gas supply system 100. When the gas volume in the second gas storage tank 31 is sufficient, the fourth control valve 56 controls the gas from the vent of the third gas-using unit 52 to be discharged into the atmosphere.
[0055] In some embodiments, please refer to Figure 4 The third gas supply module 5 also includes a fifth control valve 58, which connects the second circulation pump 57 to the second gas storage tank 31. The fifth control valve 58 controls the connection or disconnection between the second circulation pump 57 and the second gas storage tank 31. By setting the fifth control valve 58, the problem of gas backflow from the second gas storage tank 31 to the second circulation pump 57 when the second circulation pump 57 is not working is improved. The fifth control valve 58 can be a valve that can control on / off switching, such as a two-position two-way solenoid valve. Optionally, the fifth control valve 58 and the distribution valve 4 are integrated into the same valve module.
[0056] In some embodiments, please refer to Figure 5The centralized gas supply system 100 includes a first gas-using module 2, a second gas-using module 3, a third gas-using module 5, ..., an (N-1)th gas-using module 6, and an Nth gas-using module 7. N is a positive integer and greater than or equal to 4. It is understood that the connection relationship between the Nth gas-using module 7 and the (N-1)th gas-using module 6 is the same as the connection relationship between the third gas-using module 5 and the second gas-using module 3, allowing the waste gas emitted by the (N-1)th gas-using unit of the (N-1)th gas-using module 6 to be utilized by the Nth gas-using unit of the Nth gas-using module 7. The (N-1)th circulation pump of the Nth gas-using module 7 can repressurize the gas emitted by the Nth gas-using unit of the Nth gas-using module 7 and replenish it to the (N-1)th gas storage tank of the (N-1)th gas-using module 6. It is understandable that the connection between the Nth gas module 7 and the gas source device 1 is the same as the connection between the second gas module 3 or the third gas module 5 and the gas source device 1, so that the Nth gas storage tank of the Nth gas module 7 can also directly obtain gas from the gas source device 1 through the N-1th pressure reducing element.
[0057] The entire centralized gas supply system 100 features multiple efficient uses of high-pressure gas from relatively high-pressure gas-using units to relatively low-pressure gas-using units, as well as a cyclical use from relatively low-pressure gas-using units to relatively high-pressure gas-using units. The controller can dynamically adjust according to the actual conditions of each gas-using unit, minimizing gas discharge and forming a highly efficient and energy-saving closed-loop system. The controller is an electronic device, such as a microcomputer or single-chip microcomputer, that controls various control valves, circulation pumps, and distribution valves.
[0058] Secondly, this application provides a vehicle including a centralized air supply system 100. By employing the centralized air supply system 100, the vehicle can reuse the exhaust gas emitted by the first air-consuming unit 22, thereby reducing the vehicle's energy consumption. Furthermore, the first circulation pump 37 can repressurize the gas discharged from the first air-consuming unit 22 and replenish it to the first air storage tank 21, achieving the recycling of high-pressure dry gas, reducing aerodynamic noise, and lowering the failure rate of the centralized air supply system 100.
[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A centralized gas supply system, characterized in that, At least including: Gas source device; The first gas-using module includes a first gas storage tank and a plurality of first gas-using units, wherein the first gas storage tank fluidly connects the gas source device to the first gas-using units. The second gas module includes a second gas storage tank, several second gas consumption units and a first pressure reducing valve. The vent of the first gas consumption unit is in fluid communication with the second gas storage tank through a vent circulation path. The first pressure reducing valve is provided on the vent circulation path. The second gas storage tank is in fluid communication with the second gas consumption unit. The gas pressure of the second gas-using unit is lower than that of the first gas-using unit.
2. The centralized gas supply system according to claim 1, characterized in that, The second gas storage tank is also in fluid communication with the gas source device; the second gas module further includes a second pressure reducing valve, which connects the gas source device to the second gas storage tank in fluid communication.
3. The centralized gas supply system according to claim 2, characterized in that, The centralized gas supply system also includes a distribution valve, which connects the gas source device to the first gas storage tank and the second gas storage tank in fluid communication. The distribution valve is used to independently control the gas flow between the first gas storage tank and the second gas storage tank and the gas source device.
4. The centralized gas supply system according to claim 1, characterized in that, The second gas module also includes a first safety valve, which connects the first pressure reducing valve to the second gas storage tank in fluid communication.
5. The centralized gas supply system according to claim 1, characterized in that, The first gas-using module further includes a first control valve, which connects the vent of the first gas-using unit to the first pressure reducing valve and the atmospheric environment fluid. The first control valve is used to independently control the vent of the first gas-consuming unit to close, connect to the first pressure-reducing valve, or connect to the atmospheric environment.
6. The centralized gas supply system according to claim 1, characterized in that, The second gas-using module also includes a second control valve and a first circulation pump; the vent of the second gas-using unit, the second control valve, the first circulation pump, and the first gas storage tank are sequentially connected in a circulating manner; The second control valve is used to independently control the vent of the second gas-using unit to close, connect to the first circulating pump, or connect to the atmospheric environment.
7. The centralized gas supply system according to any one of claims 1 to 6, characterized in that, The centralized gas supply system also includes a third gas consumption module, which includes a third gas storage tank, several third gas consumption units and a third pressure reducing valve. The vent of the second gas consumption unit is in fluid communication with the third gas storage tank through a vent circulation path. The third pressure reducing valve is provided on the vent circulation path. The third gas storage tank is in fluid communication with the third gas consumption unit. The gas pressure of the third gas-using unit is lower than that of the second gas-using unit.
8. The centralized gas supply system according to claim 7, characterized in that, The third gas-using module also includes a fourth control valve and a second circulation pump; the vent of the third gas-using unit, the fourth control valve, the second circulation pump, and the second gas storage tank are sequentially connected in a circulating manner; The fourth control valve is used to independently control the vent of the third gas-using unit to close, connect to the second circulating pump, or connect to the atmospheric environment.
9. The centralized gas supply system according to claim 7, characterized in that, The gas pressure range of the first gas-using unit is P1, where P1 > 200 kPa; And / or, the gas pressure range of the second gas-using unit is P2, 100kPa≤P2<200kPa; And / or, the gas pressure range of the third gas-using unit is P3, 40kPa≤P3<100kPa.
10. A vehicle, characterized in that, Including the centralized gas supply system as described in any one of claims 1 to 9.