Gas filling device for compressed natural gas (CNG) conveying hose

Abstract

The utility model relates to the field of natural gas filling devices, particularly discloses a compressed natural gas (CNG) conveying hose gas filling device, and solves the technical problems that an independent gas storage tank is usually adopted in the conventional CNG storage, and the gas stored in the tank is difficult to be utilized completely. The gas filling device comprises a first gas storage tank provided with a first gas inlet pressurizing pipe; the second air storage tank is provided with an air outlet hose; the connecting pipeline is connected with the first gas storage tank and the second gas storage tank, and a flow meter is arranged in the connecting pipeline; the flow control assembly comprises a driving part and an elastic part which are connected, the elastic part is arranged on one side in the connecting pipeline in the radial direction of the connecting pipeline, and the driving part drives the elastic part to stretch out and draw back so that the elastic part can abut against or be arranged on the other side of the connecting pipeline at intervals, the effective section of the connecting pipeline can be changed, and the flow of the connecting pipeline can be controlled. The pressurization operation ensures the stability of the output gas and the complete utilization of the gas in the gas storage tank.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas filling devices, in particular to a CNG compressed natural gas delivery hose filling device. Background Art

[0002] Compressed Natural Gas (CNG) is natural gas compressed to a high pressure, primarily used as a vehicle fuel and for other applications. CNG is primarily composed of methane, typically containing over 90% methane, with other components including small amounts of ethane, propane, and nitrogen. Compared to gasoline or diesel, using CNG as a vehicle fuel can significantly reduce harmful emissions such as carbon monoxide, nitrogen oxides, and particulate matter. In many countries and regions, CNG is cheaper than traditional fossil fuels, helping to reduce operating costs in the long term. Although CNG is flammable, it is lighter than air and, in the event of a leak, diffuses upward and dilutes rapidly, reducing the risk of explosion.

[0003] Existing CNG storage usually uses independent gas tanks, and it is difficult to ensure that the gas stored in the tanks is fully utilized. Utility Model Content

[0004] The utility model aims to provide a CNG compressed natural gas delivery hose refueling device to solve the technical problem that existing CNG storage usually adopts independent gas storage tanks and it is difficult to ensure the full utilization of the gas stored in the tanks.

[0005] The utility model provides a CNG compressed natural gas transmission hose filling device, comprising: a first gas storage tank, provided with a first gas inlet pressurizing pipe; a second gas storage tank, provided with a gas outlet hose; a connecting pipe, connecting the first gas storage tank and the second gas storage tank, wherein a flow meter is provided in the connecting pipe; a flow control component, comprising a connected driving member and an elastic member, wherein the elastic member is radially arranged on one side of the connecting pipe, and the driving member drives the elastic member to extend and retract, so that the elastic member abuts or is spaced from the other side of the connecting pipe, so as to change the effective cross-section of the connecting pipe.

[0006] According to one embodiment of the present invention, the second gas storage tank is provided with a second gas inlet pressurizing pipe.

[0007] According to one embodiment of the present invention, the driving member is a telescopic cylinder.

[0008] According to one embodiment of the present invention, a pressure sensor is provided in each of the first gas storage tank and the second gas storage tank.

[0009] According to one embodiment of the present invention, the surface of the air outlet hose is coated with an antistatic coating.

[0010] According to one embodiment of the present invention, the air outlet hose is a high-pressure-resistant and corrosion-resistant hose.

[0011] According to one embodiment of the present invention, a support box is further included, wherein the first gas storage tank and the second gas storage tank are both arranged in the support box, and the support box is further provided with a support plate for supporting the first gas storage tank.

[0012] The technical solution of the utility model has at least the following advantages and beneficial effects:

[0013] The utility model relates to a CNG compressed natural gas delivery hose refueling device, which ensures a certain amount of gas stored in the second gas tank through the synergistic effect of a first gas tank and a second gas tank, thereby ensuring the stability of the output gas, and can ensure the complete utilization of the gas in the gas tank through pressurization operation. The device is equipped with a flow meter to monitor the gas flow in real time, and controls the flow by driving an elastic member to change the effective cross-section of the connecting pipe. It is also equipped with a pressure sensor to monitor the pressure of each tank in real time to ensure safe operation. In addition, the air outlet hose adopts an anti-static coating and high-pressure resistant and corrosion-resistant materials to improve stability and safety. All components can be placed in a support box as needed to effectively stabilize and protect the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A schematic diagram of the structure of a CNG compressed natural gas delivery hose refueling device provided in Example 1 of the present utility model;

[0016] Figure 2 A schematic diagram of the structure of a CNG compressed natural gas delivery hose refueling device provided in Example 2 of the present utility model;

[0017] icon:

[0018] 100. First gas storage tank; 110. First gas inlet pressurizing pipe;

[0019] 200, second gas storage tank; 210, gas outlet hose;

[0020] 300, connecting pipe; 310, driving member; 320, elastic member;

[0021] 400, pressure sensor;

[0022] 500, second air inlet pressure pipe;

[0023] 600. Support box. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Example 1

[0026] The embodiment of the utility model provides a CNG compressed natural gas delivery hose refueling device to increase the gas storage utilization rate.

[0027] See also Figure 1 The embodiment of the present invention provides a CNG compressed natural gas delivery hose filling device. The present invention provides a CNG compressed natural gas delivery hose filling device, comprising: a first gas storage tank 100, provided with a first gas inlet pressure pipe 110, so as to push the gas stored in the first gas storage tank 100 to flow to the subsequent equipment through the pressurization of the first gas inlet pressure pipe 110, to ensure that the gas can be delivered at a stable pressure; a second gas storage tank 200, provided with a gas outlet hose 210, to output compressed natural gas; a connecting pipe 300, connecting the first gas storage tank 100 and the second gas storage tank 200, and a flow meter is provided in the connecting pipe 300 to monitor the real-time flow and ensure The safety and efficiency of operation are improved; the flow control component includes a connected driving member 310 and an elastic member 320, and the elastic member 320 is radially arranged on one side of the connecting pipe 300 along the connecting pipe 300. The driving member 310 drives the elastic member 320 to expand and contract so that the elastic member 320 abuts or is spaced from the other side of the connecting pipe 300 to change the effective cross-section of the connecting pipe 300. In this embodiment, the elastic member 320 is an elastic sheet, the driving member 310 is connected to the middle part of the elastic sheet, and the end of the elastic sheet is connected to the inner side of the connecting pipe 300. The air supply rate can be flexibly adjusted according to actual needs, thereby improving resource utilization.

[0028] In this embodiment, the driving member 310 is a telescopic cylinder, the telescopic end of which is connected to the elastic sheet to drive the elastic sheet to expand and contract radially along the connecting pipe 300, so that the elastic member 320 abuts or is spaced from the other side of the connecting pipe 300 to change the effective cross-section of the connecting pipe 300.

[0029] In this embodiment, a pressure sensor 400 is respectively provided in the first gas storage tank 100 and the second gas storage tank 200 to monitor the real-time pressure inside the tank. The pressure sensor 400 is electrically connected to the central control device, which is a single-chip microcomputer. The central control device is electrically connected to the valve provided on the first air inlet pressurization pipe 110. By monitoring the pressure changes in each tank, the central control device can automatically adjust the valve opening on the first air inlet pressurization pipe 110 to maintain stable operation of the entire system.

[0030] In this embodiment, the surface of the air outlet hose 210 is coated with an anti-static coating to reduce static electricity.

[0031] In this embodiment, the air outlet hose 210 is a high-pressure-resistant and corrosion-resistant hose to increase the service life of the device.

[0032] In this embodiment, a support box 600 is further included, in which the first gas storage tank 100 and the second gas storage tank 200 are both arranged. The support box 600 is also provided with a support plate for supporting the first gas storage tank 100, and universal wheels are provided at the bottom of the support box 600 to facilitate the movement of the device.

[0033] In this embodiment, the air outlet hose 210 is an aramid fiber reinforced plastic hose, which extends the service life of the equipment.

[0034] In this embodiment, the air outlet hose 210 is provided with a valve.

[0035] The following is a detailed description of the use of the CNG compressed natural gas delivery hose filling device of Example 1 of the present invention:

[0036] During use, the first gas tank 100 is pressurized or gasified through the first gas inlet pressure pipe 110 to drive the compressed natural gas in the first gas tank 100 to move to the second gas tank 200, and then out from the gas outlet hose 210. During the compressed natural gas output process, the pressurization amplitude can be adjusted and the driving action of the driving member 310 can be controlled by the transmission data of the pressure sensor 400. Since the driving member 310 drives the elastic member 320 to expand and contract, the effective cross-section of the connecting pipe 300 can be further adjusted to control the flow rate, and then the overall pressure of the system can be adjusted through the coordinated action of the two to ensure the stability of the output compressed natural gas flow rate.

[0037] Example 2

[0038] The embodiment of the utility model provides a CNG compressed natural gas delivery hose refueling device to increase the gas storage utilization rate.

[0039] See also Figure 1 as well as Figure 2The CNG compressed natural gas delivery hose refueling device provided in Example 2 of the present invention differs from that in Example 1 only in that, in this embodiment, the second gas storage tank 200 is provided with a second gas inlet pressurizing pipe 500, so as to further realize the regulation function from multiple directions and ensure the full utilization of the internal gas storage.

[0040] The embodiments of the present invention have at least the following advantages:

[0041] The utility model relates to a CNG compressed natural gas delivery hose refueling device, which ensures a certain amount of gas stored in the second gas tank through the synergistic effect of a first gas tank and a second gas tank, thereby ensuring the stability of the output gas, and can ensure the complete utilization of the gas in the gas tank through pressurization operation. The device is equipped with a flow meter to monitor the gas flow in real time, and controls the flow by driving an elastic member to change the effective cross-section of the connecting pipe. It is also equipped with a pressure sensor to monitor the pressure of each tank in real time to ensure safe operation. In addition, the air outlet hose adopts an anti-static coating and high-pressure resistant and corrosion-resistant materials to improve stability and safety. All components can be placed in a support box as needed to effectively stabilize and protect the device.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A CNG compressed natural gas delivery hose refueling device, characterized in that: include: The first gas storage tank is provided with a first gas inlet pressurizing pipe; The second gas storage tank is provided with a gas outlet hose; a connecting pipe connecting the first gas storage tank and the second gas storage tank, wherein a flow meter is provided in the connecting pipe; The flow control component includes a connected driving member and an elastic member. The elastic member is radially arranged on one side of the connecting pipe. The driving member drives the elastic member to extend and retract so that the elastic member abuts or is spaced from the other side of the connecting pipe to change the effective cross-section of the connecting pipe.

2. The CNG compressed natural gas delivery hose refueling device according to claim 1, characterized in that: The second gas storage tank is provided with a second gas inlet pressurizing pipe.

3. The CNG compressed natural gas delivery hose refueling device according to claim 1, characterized in that: The driving member is a telescopic cylinder.

4. The CNG compressed natural gas delivery hose refueling device according to claim 1, characterized in that: The first gas storage tank and the second gas storage tank are respectively provided with a pressure sensor.

5. The CNG compressed natural gas delivery hose refueling device according to claim 1, characterized in that: The surface of the air outlet hose is coated with an antistatic coating.

6. The CNG compressed natural gas delivery hose refueling device according to claim 1, characterized in that: The air outlet hose is a high-pressure-resistant and corrosion-resistant hose.

7. The CNG compressed natural gas delivery hose refueling device according to any one of claims 1 to 6, characterized in that: It also includes a support box, in which the first gas storage tank and the second gas storage tank are both arranged. The support box is also provided with a support plate for supporting the first gas storage tank.

Images