Vehicle-mounted movable multi-stage pressure reduction gas supply system

Abstract

The invention discloses a vehicle-mounted movable multi-stage pressure reduction gas supply system, which belongs to the technical field of pressure reduction gas supply, and comprises a gas distribution assembly, a gas cylinder group, a first-stage pressure reduction valve, a second-stage pressure reduction valve, a standby pressure reduction valve and a silencing assembly, and the gas distribution assembly comprises a gas distribution table, a gas inlet pipe group, a standby pipe group, a transmission pipe group and a gas outlet pipe group; the gas cylinder set communicates with the end, away from the conveying pipe set, of the gas inlet pipe set. The first-stage pressure reducing valve is arranged on the transmission pipe group; the secondary pressure reducing valve is arranged on the air outlet pipe group; the standby pressure reducing valve is arranged on the standby pipe group; the silencing assembly is connected with the air distribution assembly. According to the vehicle-mounted movable type multi-stage pressure reduction gas supply system, the problems that gas cannot be continuously and stably supplied, the gas supply pressure grade is single, and multi-position gas supply cannot be achieved in the prior art are solved, the acting effect is remarkable, and the vehicle-mounted movable type multi-stage pressure reduction gas supply system is suitable for wide popularization.

Description

Technical Field

[0001] The invention relates to the technical field of reduced pressure air supply, and in particular to a vehicle-mounted mobile multi-stage reduced pressure air supply system. Background Art

[0002] The existing gas supply system has the following problems: 1. The gas supply valves in the system fail during use, and the continuous and stable supply of gas pressure and flow cannot be guaranteed; 2. The gas supply pressure level in the gas supply system is single, and cannot meet the gas supply needs of different levels; 3. The gas supply system can only supply gas at a fixed position during use, and cannot meet the gas supply needs of multiple positions.

[0003] Therefore, how to provide a gas supply system that can provide continuous and stable gas supply, meet different levels of gas supply needs, and is movable has become an urgent problem to be solved. Summary of the invention

[0004] In view of the above-mentioned defects, the technical problem solved by the present invention is to provide a vehicle-mounted mobile multi-stage pressure-reducing air supply system to solve the problems existing in the existing technology of inability to supply air continuously and stably, single air supply pressure level, and inability to supply air to multiple locations.

[0005] The present invention provides a vehicle-mounted mobile multi-stage pressure-reducing gas supply system, comprising:

[0006] A gas distribution assembly, comprising a gas distribution platform, an air inlet pipe group, a spare pipe group, a transmission pipe group and an air outlet pipe group, wherein the air inlet pipe group, the spare pipe group, the transmission pipe group and the air outlet pipe group are all arranged on the gas distribution platform, the air inlet pipe group is communicated with the spare pipe group and the transmission pipe group at the same time, and the air outlet pipe group is communicated with the transmission pipe group;

[0007] A gas cylinder assembly, connected to an end of the gas inlet pipe assembly away from the transmission pipe assembly;

[0008] A primary pressure reducing valve, arranged on the transmission pipe group, for controlling the connection and disconnection between the intake pipe group and the transmission pipe group;

[0009] A secondary pressure reducing valve, arranged on the outlet pipe assembly, for controlling the connection and disconnection between the transmission pipe assembly and the outlet pipe assembly;

[0010] A spare pressure reducing valve, arranged on the spare pipe group, for controlling the connection and disconnection between the air intake pipe group and the spare pipe group;

[0011] A silencer assembly is connected to the gas distribution assembly.

[0012] Preferably, the air intake pipe group includes:

[0013] A first air intake pipe, one end of which is connected to the gas cylinder assembly, and the first air intake pipe is provided with a first air intake filter and a first air intake stop valve;

[0014] a second air intake pipe, one end of which is connected to the first air intake pipe and the other end of which is provided with an opening for inflation or calibration, the second air intake pipe being provided with a second air intake filter and a second air intake stop valve;

[0015] a third air intake pipe, one end of which is connected to the muffler assembly, and the other end of which is connected to the first air intake pipe, and the third air intake pipe is provided with a third air intake stop valve;

[0016] A fourth air intake pipe has one end connected to the first air intake pipe and the other end connected to both the transmission pipe group and the standby pipe group. An air intake pressure gauge and an air intake pressure sensor are provided on the fourth air intake pipe.

[0017] Preferably, the spare pipe set comprises:

[0018] A first spare pipe, one end of which is connected to the high-pressure reducing valve, and a first spare stop valve is provided on the first spare pipe;

[0019] a second spare pipe, one end of which is connected to the muffler assembly, and the other end of which is connected to the first spare pipe, and a second stop valve is provided on the second spare pipe;

[0020] The third spare pipe is connected to the intake pipe group, the first spare pipe and the second spare pipe at the same time. The third spare pipe is provided with a spare pressure gauge, and the spare pressure reducing valve is arranged on the third spare pipe.

[0021] Preferably, the transmission pipe group includes:

[0022] A first transmission pipe, one end of which is connected to both the standby pipe group and the intake pipe group, the first-stage pressure reducing valve is arranged on the first transmission pipe, and the first transmission pipe is also provided with a transmission pressure sensor, a transmission pressure gauge, a transmission safety valve and a first transmission stop valve;

[0023] A second transmission pipe, one end of which is connected to an additional self-test component, and the second transmission pipe is provided with a second transmission stop valve, a first transmission solenoid valve and a first transmission check valve;

[0024] A third transmission pipe, one end of which is connected to the silencer assembly and the pipeline gas inspection assembly at the same time, a third transmission stop valve is provided on the third transmission pipe, and a fourth transmission stop valve is provided between the third transmission pipe and the silencer assembly;

[0025] A fourth transmission pipe, connected to the reserved port and the muffler assembly via the second transmission solenoid valve;

[0026] A fifth transmission pipe is connected to the muffler assembly, and a fifth transmission stop valve is provided on the fifth transmission pipe.

[0027] Preferably, the air outlet pipe group includes:

[0028] A first air outlet pipe, one end of which is connected to the transmission pipe group, the secondary pressure reducing valve is arranged on the first air outlet pipe, and the first air outlet pipe is also provided with an air outlet pressure sensor, an air outlet pressure gauge, an air outlet safety valve and a first air outlet stop valve;

[0029] A second air outlet pipe, one end of which is connected to the first air outlet pipe and is arranged between the air outlet safety valve and the first air outlet stop valve, and the other end of which is connected to the muffler component, and a second air outlet stop valve is arranged on the second air outlet pipe;

[0030] A third air outlet pipe, one end of which is connected to the first air outlet pipe, and the other end of which is connected to a secondary backup pressure reducing valve, and the third air outlet pipe is provided with a third air outlet stop valve;

[0031] A first air outlet pipe monomer, one end of which is connected to the first air outlet pipe and the other end of which is connected to a driving pump, and the first air outlet pipe monomer is provided with an air outlet solenoid valve;

[0032] One end of the second air outlet pipe unit is connected to the first air outlet pipe, and the other end is connected to the air-demanding equipment. There are a plurality of the second air outlet pipe units.

[0033] Preferably, the noise reduction assembly comprises:

[0034] A first muffler is disposed on the third air inlet pipe and connected to the air distribution platform;

[0035] A second muffler is disposed on the second spare pipe and connected to the gas distribution platform;

[0036] A third muffler is disposed on the second air outlet pipe and connected to the air distribution platform;

[0037] a fourth muffler, disposed on the fifth transmission pipe and connected to the gas distribution platform;

[0038] a fifth muffler, disposed on the fourth transmission pipe and connected to the gas distribution platform;

[0039] The sixth muffler is arranged on the third transmission pipe and connected to the gas distribution platform.

[0040] Preferably, the gas cylinder group comprises:

[0041] A gas cylinder unit, connected to the air intake pipe assembly, and provided with a plurality of gas cylinder units;

[0042] The gas cylinder stop valve is arranged between the gas cylinder unit and the air intake pipe assembly and corresponds to the gas cylinder unit one by one.

[0043] Preferably, the first air outlet pipe is provided in plurality, and the driving pump and the air outlet solenoid valve correspond to the first air outlet pipes one by one.

[0044] Preferably, the second air outlet pipe unit is connected to the air-demanding device via a ball valve, and the ball valve is used to control the connection and disconnection between the second air outlet pipe unit and the air-demanding device.

[0045] Preferably, the first silencer and the third silencer are both arranged on one side of the gas distribution platform, and the second silencer, the fourth silencer, the fifth silencer and the sixth silencer are all arranged on the other side of the gas distribution platform.

[0046] It can be seen from the above scheme that the vehicle-mounted mobile multi-stage pressure-reducing gas supply system provided by the present invention is a gas supply system that performs multi-stage pressure reduction in the form of vehicle-mounted movement. The use of a gas cylinder group effectively solves the problem of small volume of a single gas cylinder. The volume of the compressed gas cylinder device can be increased to twice that of the existing single gas cylinder post-placement solution, which solves the problem of long gas supply time; the vehicle-mounted form overcomes the defects of fixed gas supply; through the combination of multiple pressure reducing valves, multi-stage pressure reduction is achieved, the needs of different pressure levels are met, and the system is guaranteed to continuously provide stable gas supply pressure and flow. The gas supply system ensures that the gas supply system can continuously and stably provide a gas source, ensures the high reliability of the gas supply system, meets the conditions for free mobile gas supply, and meets the gas supply needs of different pressure levels. The present invention solves the problems of the current technology that the gas supply cannot be continuously and stably supplied, the gas supply pressure level is single, and the gas supply cannot be supplied in multiple locations. The effect is remarkable and suitable for wide promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 A structural schematic block diagram of a vehicle-mounted mobile multi-stage pressure-reducing air supply system provided by the present invention. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] See also Figure 1 , now a specific embodiment of a vehicle-mounted mobile multi-stage pressure-reducing air supply system provided by the present invention is described. The vehicle-mounted mobile multi-stage pressure-reducing air supply system includes a gas distribution component, a gas cylinder group, a primary pressure-reducing valve, a secondary pressure-reducing valve, a spare pressure-reducing valve, and a silencer component, wherein the gas distribution component includes a gas distribution platform, an air intake pipe group, a spare pipe group, a transmission pipe group, and an air outlet pipe group, the air intake pipe group, the spare pipe group, the transmission pipe group, and the air outlet pipe group are all arranged on the gas distribution platform, the air intake pipe group is connected with the spare pipe group and the transmission pipe group at the same time, and the air outlet pipe group is connected with the transmission pipe group; the gas cylinder group is connected with one end of the air intake pipe group away from the transmission pipe group; the primary pressure-reducing valve is arranged on the transmission pipe group, used to control the on-off between the air intake pipe group and the transmission pipe group; the secondary pressure-reducing valve is arranged on the air outlet pipe group, used to control the on-off between the transmission pipe group and the air outlet pipe group; the spare pressure-reducing valve is arranged on the spare pipe group, used to control the on-off between the air intake pipe group and the spare pipe group; the silencer component is connected to the gas distribution component.

[0051] In this embodiment, the first-stage pressure reducing valve and the backup pressure reducing valve are of the same type, both are high-pressure pressure reducing valves that output 5±0.5MPa gas, and the second-stage pressure reducing valve is used as the main pressure reducing valve to output 0.5±0.1MPa gas. The first-stage pressure reducing valve and the second-stage pressure reducing valve are used to achieve multi-stage pressure reduction to meet different gas supply requirements. The system is installed on a transport vehicle for easy transportation and mobile use.

[0052] Compared with the existing technology, this vehicle-mounted mobile multi-stage pressure-reducing gas supply system is a gas supply system that performs multi-stage pressure reduction in the form of vehicle-mounted movement. The use of a gas cylinder group effectively solves the problem of small volume of a single gas cylinder. The volume of the compressed gas cylinder device can be increased to twice that of the existing single gas cylinder rear-mounted solution, solving the problem of long gas supply time; the vehicle-mounted form overcomes the defects of fixed gas supply; through the combination of multiple pressure reducing valves, multi-stage pressure reduction is achieved, meeting the needs of different pressure levels, and ensuring that the system continuously provides stable gas supply pressure and flow. The gas supply system ensures that the gas supply system can continuously and stably provide a gas source, ensures the high reliability of the gas supply system, meets the conditions for free mobile gas supply, and meets the gas supply needs of different pressure levels. Placing the system on the vehicle enables the gas supply system to move back and forth during use, breaking the limitation that the gas supply system can only supply gas at a fixed position during use and cannot meet the needs of multiple positions.

[0053] As another embodiment of the present invention, the structure of the vehicle-mounted mobile multi-stage pressure-reducing air supply system is basically the same as the structure in the above-mentioned embodiment, except that the air intake pipe group includes a first air intake pipe, a second air intake pipe, a third air intake pipe, and a fourth air intake pipe, wherein one end of the first air intake pipe is connected to the gas cylinder group, and the first air intake pipe is provided with a first air intake filter and a first air intake stop valve; one end of the second air intake pipe is connected to the first air intake pipe, and the other end is provided with an opening for inflation or calibration, and the second air intake pipe is provided with a second air intake filter and a second air intake stop valve; one end of the third air intake pipe is connected to the silencer assembly, and the other end is connected to the first air intake pipe, and the third air intake pipe is provided with a third air intake stop valve; one end of the fourth air intake pipe is connected to the first air intake pipe, and the other end is connected to the transmission pipe group and the spare pipe group at the same time, and the fourth air intake pipe is provided with an intake pressure gauge and an intake pressure sensor.

[0054] The first-stage pressure reducing valve reduces the pressure of the entire system. The gas cylinder group (23MPa) supplies gas to the entire system, which is filtered through the first air inlet filter and reduced to 5±0.5MPa through the first-stage pressure reducing valve. The first-stage pressure reducing valve serves as the main pressure reducing valve and mainly supplies gas for liquid tank pressurization, pipeline gas inspection and reserved projects. The pressure reduction process is monitored throughout by the air inlet pressure gauge and air inlet pressure sensor. The wall (gas cylinder filling port, calibration port) connected to the second air inlet filter has dual functions. On the one hand, it is used for the inflation of the gas cylinder group, and on the other hand, it is used for the calibration of the gas source quality, ensuring the continuous and stable supply of gas supply pressure and flow.

[0055] As another embodiment of the present invention, the structure of the vehicle-mounted mobile multi-stage pressure-reducing air supply system is basically the same as the structure in the above-mentioned embodiment, except that the spare pipe group includes a first spare pipe, a second spare pipe, and a third spare pipe, wherein one end of the first spare pipe is connected to the high-pressure pressure reducing valve (specifically, one end of the first spare pipe is connected to the connector of the high-pressure pressure reducing valve for external air supply to the system), and a first spare stop valve is provided on the first spare pipe; one end of the second spare pipe is connected to the silencer assembly, and the other end is connected to the first spare pipe, and a second stop valve is provided on the second spare pipe; the third spare pipe is connected to the intake pipe group, the first spare pipe and the second spare pipe at the same time, and a spare pressure gauge is provided on the third spare pipe, and a spare pressure reducing valve is arranged on the third spare pipe.

[0056] As another embodiment of the present invention, the structure of the vehicle-mounted mobile multi-stage pressure-reducing air supply system is basically the same as the structure in the above embodiment, except that the transmission pipe group includes a first transmission pipe, a second transmission pipe, a third transmission pipe, a fourth transmission pipe, and a fifth transmission pipe, wherein one end of the first transmission pipe is simultaneously connected to the standby pipe group and the intake pipe group, a first-level pressure reducing valve is arranged on the first transmission pipe, and a transmission pressure sensor, a transmission pressure gauge, a transmission safety valve and a first transmission stop valve are also arranged on the first transmission pipe; one end of the second transmission pipe is connected to an additional self-test component, and the second transmission pipe is provided with a second transmission stop valve, a first transmission solenoid valve and a first transmission check valve; one end of the third transmission pipe is simultaneously connected to a silencer component and a pipeline gas inspection component, the third transmission pipe is provided with a third transmission stop valve, and a fourth transmission stop valve is arranged between the third transmission pipe and the silencer component; the fourth transmission pipe is simultaneously connected to a reserved port (the reserved port is used to serve as a backup route for deflation) and a silencer component through the second transmission solenoid valve; the fifth transmission pipe is connected to the silencer component, and the fifth transmission pipe is provided with a fifth transmission stop valve.

[0057] In this embodiment, the first transmission stop valve, the first standby stop valve, and the fifth transmission stop valve are all high-pressure manual stop valves; the second transmission pipe, the third transmission pipe, the fourth transmission pipe, and the fifth transmission pipe are all connected to the first transmission pipe, and the other end of the first transmission pipe is connected to the air outlet pipe group. The second transmission solenoid valve is a two-position three-way solenoid valve; the first transmission solenoid valve is a two-position two-way solenoid valve.

[0058] As another embodiment of the present invention, the structure of the vehicle-mounted mobile multi-stage pressure-reducing air supply system is basically the same as the structure in the above-mentioned embodiment, except that the air outlet pipe group includes a first air outlet pipe, a second air outlet pipe, a third air outlet pipe, a first air outlet pipe monomer, and a second air outlet pipe monomer, wherein one end of the first air outlet pipe is connected to the transmission pipe group, and the secondary pressure reducing valve is arranged on the first air outlet pipe, and the first air outlet pipe is also provided with an air outlet pressure sensor, an air outlet pressure gauge, an air outlet safety valve and a first air outlet stop valve; one end of the second air outlet pipe is connected to the first air outlet pipe, and is arranged on the air outlet safety valve and The first air outlet stop valve is connected to the air outlet of the first air outlet pipe, and the other end is connected to the silencer assembly, and the second air outlet stop valve is provided on the second air outlet pipe; one end of the third air outlet pipe is connected to the first air outlet pipe, and the other end is connected to the secondary backup pressure reducing valve, and the third air outlet pipe is provided with a third air outlet stop valve; one end of the first air outlet pipe monomer is connected to the first air outlet pipe, and the other end is connected to the driving pump, and the first air outlet pipe monomer is provided with an air outlet solenoid valve; one end of the second air outlet pipe monomer is connected to the first air outlet pipe, and the other end is connected to the air requiring equipment (the air requiring equipment is used to supply air to other devices that need to be supplied with air), and the second air outlet pipe monomer is provided with multiple.

[0059] In this embodiment, a plurality of first air outlet pipe units are provided, and the drive pump and the air outlet solenoid valve correspond to the first air outlet pipe one by one. The second air outlet pipe unit is connected to the gas-demanding device via a ball valve, and the ball valve is used to control the on-off between the second air outlet pipe unit and the gas-demanding device. The air outlet solenoid valve is a two-position three-way solenoid valve; the drive pump is a diaphragm pump. The secondary pressure reducing valve provides multi-stage pressure reduction for the entire system. The first transmission stop valve is opened to supply the gas reduced to 5±0.5MPa to the secondary pressure reducing valve, and 0.5±0.1MPa gas is output through the secondary pressure reducing valve, thus achieving multi-stage pressure reduction. The 0.5±0.1MPa gas is used for the suction drive of the multi-way drive pump on the one hand, and for the gas supply of the multi-way ball valve and the emptying of the pipeline on the other hand. The secondary pressure reducing valve meets the gas demand for large flow and stable output of the dual pump operation.

[0060] As another embodiment of the present invention, the structure of the vehicle-mounted mobile multi-stage pressure-reducing air supply system is basically the same as the structure in the above-mentioned embodiment, except that the silencer assembly includes a first silencer, a second silencer, a third silencer, a fourth silencer, a fifth silencer, and a sixth silencer, wherein the first silencer is arranged on the third air inlet pipe and connected to the gas distribution platform; the second silencer is arranged on the second spare pipe and connected to the gas distribution platform; the third silencer is arranged on the second air outlet pipe and connected to the gas distribution platform; the fourth silencer is arranged on the fifth transmission pipe and connected to the gas distribution platform; the fifth silencer is arranged on the fourth transmission pipe and connected to the gas distribution platform; the sixth silencer is arranged on the third transmission pipe and connected to the gas distribution platform.

[0061] The route where the backup pressure reducing valve is located is used as a backup route when the first-stage pressure reducing valve is damaged. When the first-stage pressure reducing valve is damaged, the first transmission stop valve is closed to block the subsequent gas supply line. The first backup stop valve and the fifth transmission stop valve are opened, and the metal hose connected to the wall connected to the fourth silencer is connected to supply gas through the wall connected to the first backup stop valve (extrusion transfer pressure reducing valve backup) to ensure the continuous and stable supply of gas supply pressure and flow. The silencer component is used to provide silencer protection for the line.

[0062] As another embodiment of the present invention, the structure of this vehicle-mounted mobile multi-stage pressure-reducing gas supply system is basically the same as the structure in the above-mentioned embodiment, except that the gas cylinder group includes a gas cylinder unit and a gas cylinder stop valve, wherein the gas cylinder unit is connected to the air intake pipe group and is provided with a plurality of gas cylinder stop valves; the gas cylinder unit is arranged between the gas cylinder unit and the air intake pipe group and corresponds one-to-one to the gas cylinder unit.

[0063] In this embodiment, the first and third silencers are both arranged on one side of the gas distribution platform, and the second, fourth, fifth and sixth silencers are all arranged on the other side of the gas distribution platform. The system also includes functions such as liquid tank pressurization and self-inspection, extrusion transfer, pipeline and filling equipment gas inspection, pneumatic ball valve control and diaphragm pump suction drive. The system can be moved by car to provide multi-stage pressure reduction gas supply, can provide a continuous and stable gas source, meet different levels of gas supply needs, and realize movable gas supply conditions.

[0064] The beneficial effects of this vehicle-mounted mobile multi-stage pressure-reducing gas supply system include the following:

[0065] 1. Freely movable gas supply can be realized by loading on vehicles, breaking the limitation of fixed gas supply;

[0066] 2. Multi-stage pressure reduction can be achieved by setting up a first-stage pressure reducing valve, a backup pressure reducing valve and a second-stage pressure reducing valve, breaking the limitation of single-stage pressure reduction and meeting the gas supply needs of different pressure levels;

[0067] 3. By setting the same type of first-stage pressure reducing valve, backup pressure reducing valve, high-pressure pressure reducing valve and second-stage backup pressure reducing valve, the high reliability of the gas supply system is guaranteed, ensuring the continuous and stable supply of gas supply pressure and flow.

[0068] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced. The contents not described in detail in the embodiments of the present invention belong to the prior art known to professional and technical personnel in this field.

[0069] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle-mounted mobile multi-stage pressure-reducing gas supply system, characterized in that: include: A gas distribution assembly, comprising a gas distribution platform, an air inlet pipe group, a spare pipe group, a transmission pipe group and an air outlet pipe group, wherein the air inlet pipe group, the spare pipe group, the transmission pipe group and the air outlet pipe group are all arranged on the gas distribution platform, the air inlet pipe group is communicated with the spare pipe group and the transmission pipe group at the same time, and the air outlet pipe group is communicated with the transmission pipe group; A gas cylinder assembly, connected to an end of the gas inlet pipe assembly away from the transmission pipe assembly; A primary pressure reducing valve, arranged on the transmission pipe group, for controlling the connection and disconnection between the intake pipe group and the transmission pipe group; A secondary pressure reducing valve, arranged on the outlet pipe assembly, for controlling the connection and disconnection between the transmission pipe assembly and the outlet pipe assembly; A spare pressure reducing valve, arranged on the spare pipe group, for controlling the connection and disconnection between the air intake pipe group and the spare pipe group; A silencer assembly is connected to the gas distribution assembly.

2. A vehicle-mounted mobile multi-stage pressure-reducing gas supply system according to claim 1, characterized in that: The air intake pipe group comprises: A first air intake pipe, one end of which is connected to the gas cylinder assembly, and the first air intake pipe is provided with a first air intake filter and a first air intake stop valve; a second air intake pipe, one end of which is connected to the first air intake pipe and the other end of which is provided with an opening for inflation or calibration, the second air intake pipe being provided with a second air intake filter and a second air intake stop valve; a third air intake pipe, one end of which is connected to the muffler assembly, and the other end of which is connected to the first air intake pipe, and the third air intake pipe is provided with a third air intake stop valve; A fourth air intake pipe has one end connected to the first air intake pipe and the other end connected to both the transmission pipe group and the standby pipe group. An air intake pressure gauge and an air intake pressure sensor are provided on the fourth air intake pipe.

3. A vehicle-mounted mobile multi-stage pressure-reducing gas supply system according to claim 2, characterized in that: The spare pipe set comprises: A first spare pipe, one end of which is connected to the high-pressure reducing valve, and a first spare stop valve is provided on the first spare pipe; a second spare pipe, one end of which is connected to the muffler assembly and the other end of which is connected to the first spare pipe, and a second stop valve is provided on the second spare pipe; The third spare pipe is connected to the intake pipe group, the first spare pipe and the second spare pipe at the same time. The third spare pipe is provided with a spare pressure gauge, and the spare pressure reducing valve is arranged on the third spare pipe.

4. A vehicle-mounted mobile multi-stage pressure-reducing gas supply system according to claim 3, characterized in that: The transmission pipe group comprises: A first transmission pipe, one end of which is connected to both the standby pipe group and the intake pipe group, the first-stage pressure reducing valve is arranged on the first transmission pipe, and the first transmission pipe is also provided with a transmission pressure sensor, a transmission pressure gauge, a transmission safety valve and a first transmission stop valve; A second transmission pipe, one end of which is connected to an additional self-test component, and the second transmission pipe is provided with a second transmission stop valve, a first transmission solenoid valve and a first transmission check valve; A third transmission pipe, one end of which is connected to the silencer assembly and the pipeline gas inspection assembly at the same time, a third transmission stop valve is provided on the third transmission pipe, and a fourth transmission stop valve is provided between the third transmission pipe and the silencer assembly; A fourth transmission pipe, connected to the reserved port and the muffler assembly via the second transmission solenoid valve; A fifth transmission pipe is connected to the muffler assembly, and a fifth transmission stop valve is provided on the fifth transmission pipe.

5. A vehicle-mounted mobile multi-stage pressure-reducing gas supply system according to claim 4, characterized in that: The air outlet pipe group comprises: A first air outlet pipe, one end of which is connected to the transmission pipe group, the secondary pressure reducing valve is arranged on the first air outlet pipe, and the first air outlet pipe is also provided with an air outlet pressure sensor, an air outlet pressure gauge, an air outlet safety valve and a first air outlet stop valve; A second air outlet pipe, one end of which is connected to the first air outlet pipe and is arranged between the air outlet safety valve and the first air outlet stop valve, and the other end of which is connected to the muffler component, and a second air outlet stop valve is arranged on the second air outlet pipe; A third air outlet pipe, one end of which is connected to the first air outlet pipe, and the other end of which is connected to a secondary backup pressure reducing valve, and the third air outlet pipe is provided with a third air outlet stop valve; A first air outlet pipe monomer, one end of which is connected to the first air outlet pipe and the other end of which is connected to a driving pump, and the first air outlet pipe monomer is provided with an air outlet solenoid valve; One end of the second air outlet pipe unit is connected to the first air outlet pipe, and the other end is connected to the air-demanding equipment. There are a plurality of the second air outlet pipe units.

6. A vehicle-mounted mobile multi-stage pressure-reducing gas supply system according to claim 5, characterized in that: The muffler assembly comprises: A first muffler is disposed on the third air inlet pipe and connected to the air distribution platform; A second muffler is disposed on the second spare pipe and connected to the gas distribution platform; A third muffler is disposed on the second air outlet pipe and connected to the air distribution platform; a fourth muffler, disposed on the fifth transmission pipe and connected to the gas distribution platform; a fifth muffler, disposed on the fourth transmission pipe and connected to the gas distribution platform; The sixth muffler is arranged on the third transmission pipe and connected to the gas distribution platform.

7. A vehicle-mounted mobile multi-stage pressure-reducing gas supply system according to any one of claims 1 to 6, characterized in that: The gas cylinder set includes: A gas cylinder unit, connected to the air intake pipe assembly, and provided with a plurality of gas cylinder units; The gas cylinder stop valve is arranged between the gas cylinder unit and the air intake pipe assembly and corresponds to the gas cylinder unit one by one.

8. The vehicle-mounted mobile multi-stage pressure-reducing gas supply system according to claim 6, characterized in that: There are a plurality of first air outlet pipes, and the driving pump and the air outlet solenoid valve correspond to the first air outlet pipes one by one.

9. The vehicle-mounted mobile multi-stage pressure-reducing gas supply system according to claim 6, characterized in that: The second air outlet pipe unit is connected to the air-demanding device via a ball valve, and the ball valve is used to control the connection and disconnection between the second air outlet pipe unit and the air-demanding device.

10. The vehicle-mounted mobile multi-stage pressure-reducing gas supply system according to claim 6, characterized in that: The first silencer and the third silencer are both arranged on one side of the gas distribution platform, and the second silencer, the fourth silencer, the fifth silencer and the sixth silencer are all arranged on the other side of the gas distribution platform.

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