Pipe bundle container and gas filling vehicle

Abstract

The utility model relates to a kind of pipe bundle type container and gas vehicle, pipe bundle type container includes container frame, gas cylinder and lifting device. Gas cylinder is obliquely fixed in container frame with one end high and one end low, and the higher end of gas cylinder is provided with gas outlet pipeline, and the lower end of gas cylinder is provided with inlet return liquid pipeline. Lifting device is driven connection with container frame, and lifting device is used to lift one end of container frame, to make the inclination angle of the higher end of gas cylinder relative to lower end increase. By setting gas cylinder as obliquely fixed in the structure of container frame, the gas filling process and the liquid return process after gas filling of gas cylinder are more smooth. At the same time, the lifting effect of lifting device on container frame makes one end of container frame can be raised to a inclination angle, so that the inclination angle of gas cylinder relative to ground can be further increased, and then the gas filling process and the liquid return process of gas cylinder can be more smoothly carried out, and it is beneficial to improve the operation economy of pipe bundle type container and gas vehicle.

Description

Technical Field

[0001] This utility model relates to the field of mobile gas filling equipment technology, and in particular to a tubular container and a gas filling vehicle. Background Technology

[0002] Currently, with national requirements for energy conservation, emission reduction, and environmental pollution reduction, the construction of gas stations has become an inevitable trend in the development of clean energy. However, in some large cities, hydrogen or compressed natural gas (CNG) refueling stations are expansions of existing gas stations, which are limited by the land area of ​​the original gas stations. Furthermore, areas without gas stations cannot provide emergency refueling.

[0003] Therefore, there is an urgent need to provide a gas filling device that integrates transportation and gas filling functions. Utility Model Content

[0004] One objective of this utility model is to overcome the shortcomings of the existing technology and provide a tubular container. To solve the above-mentioned technical problems, this utility model adopts the following technical solution: A tubular container, comprising: Container frame; Gas cylinders are installed inside the container frame. The gas cylinders are fixed inside the container frame with one end higher and the other lower. The higher end of the gas cylinder is equipped with an outlet pipe, and the lower end of the gas cylinder is equipped with an inlet and outlet pipe. The lifting device is connected to the container frame drive and is used to lift one end of the container frame so that the tilt angle of the higher end of the gas cylinder relative to the lower end increases.

[0005] In one embodiment, the gas cylinder is tilted at an angle of less than or equal to 3° relative to the horizontal plane.

[0006] In one embodiment, the lifting device raises the container frame at an angle of 3° to 6°.

[0007] In one embodiment, the tubular container further includes: The detection device is installed on the gas outlet pipe and is used to detect the amount of gas discharged from the gas cylinder. The control device is connected to the detection device and the lifting device via signals. The control device is used to receive the detection signals from the detection device and control the start and stop of the lifting device according to the detection signals.

[0008] In one embodiment, the tubular container further includes: The first control valve is installed on the outlet pipe. The control device is connected to the first control valve and is used to control the opening and closing of the first control valve. The second control valve is installed on the inlet and outlet liquid lines. The control device is connected to the second control valve and is used to control the opening and closing of the second control valve.

[0009] In one embodiment, the tubular container further includes a support frame located below the container frame. The support frame is used to support the container frame and is hinged to the lower end of the corresponding gas cylinder of the container frame. A lifting device is mounted on the support frame and drivenly connected to the container frame.

[0010] In one embodiment, the lifting device includes a drive member and a lifting member. The drive member is driven to the lifting member and is used to drive the lifting member to perform lifting movements. The top end of the lifting member is hinged to the end of the container frame corresponding to the higher end of the gas cylinder.

[0011] In one embodiment, the tubular container includes: The first end plate is inclinedly disposed at one end of the container frame and is vertically fixed to the higher end of the gas cylinder; and The second end plate is set at the other end of the container frame, parallel to the first end plate, and is fixed perpendicularly to the lower end of the gas cylinder. In one embodiment, a plurality of flange holes are respectively provided on the first end plate and the second end plate, and connecting flanges are respectively provided at both ends of the gas cylinder. The connecting flanges at the higher end of the gas cylinder are fixedly connected to the flange holes of the first end plate, and the connecting flanges at the lower end are fixedly connected to the flange holes of the second end plate.

[0012] Another objective of this utility model is to provide a gas refueling vehicle, including a vehicle body and a tubular container as described in any of the above, wherein the tubular container is disposed on the vehicle body.

[0013] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects: In this invention, the tubular container includes a container frame, gas cylinders, and a lifting device. The gas cylinders are housed within the container frame, with one end higher than the other, and are fixed at an angle within the frame. The higher end of the gas cylinder has an outlet pipe, and the lower end has inlet and outlet pipes. The lifting device is driven and connected to the container frame, and is used to raise one end of the container frame, thereby increasing the angle between the higher and lower ends of the gas cylinder.

[0014] By configuring the gas cylinders to be fixed at an angle within the container frame, meaning the cylinders themselves have an inherent tilt angle, the filling and return processes are made smoother. Simultaneously, the lifting device raises the container frame, allowing one end of the frame to rise at an angle, further increasing the cylinder's tilt angle relative to the ground, thus ensuring even smoother filling and return processes.

[0015] Because the tilt angle of the gas storage structure at existing gas refueling stations is typically within a certain range during refueling operations, while the final tilt angle of the gas cylinder in this application is the sum of the cylinder's self-tilting angle and the tilt angle of the lifting device raising the container frame, the self-tilting angle of the gas cylinder can be designed to be smaller. This allows for the installation of more gas cylinders within a container frame with limited height. A smaller self-tilting angle also helps to lower the center of gravity, reduce the probability of hazards, and improve the safety of gas cylinder use. Furthermore, under the same arrangement conditions, compared to gas cylinders with larger tilt angles, a smaller tilt angle can maintain the same gas cylinder volume, eliminating the need to reduce the cylinder length to avoid exceeding the height limit of the tubular container due to excessively large tilt angles. In addition, the tilt angle of the lifting device raising the container frame can also be designed to be smaller, which helps to reduce the device cost and power consumption, thereby improving the operational economy of tubular containers and gas refueling vehicles.

[0016] The tubular container and CNG truck of this application integrate gas storage, transportation and refueling functions. It can be used not only for gas storage and refueling at CNG stations, but also for transporting stored gas to any place where refueling is needed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the lifting principle of a tubular container according to one embodiment.

[0018] Figure 2 This is a schematic diagram of the internal structure of a tubular container according to one embodiment.

[0019] Figure 3 This is a schematic diagram of the gas refueling process of a tubular container according to one embodiment.

[0020] Figure 4 This is a schematic diagram of the control principle of a tubular container according to one embodiment.

[0021] The annotations in the attached figures are explained as follows: 10-Vehicle body; 20-Tube bundle container; 30-External liquid storage device; 31-High pressure pump; 40-Gas dispenser; 100 - Container frame; 110 - First end plate; 120 - Second end plate; 200-gas cylinder; 210 - Gas outlet line; 211 - First control valve; 212 - First manual switch valve; 213 - Safety valve; 220 - Inlet / outlet liquid line; 221 - Second control valve; 222 - Second manual switch valve; 223 - Pressure gauge; 300 - Lifting device; 310 - Drive component; 320 - Lifting component; 400 - Support frame; 500 - Detection device; 600 - Control device. Detailed Implementation

[0022] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0023] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] See Figure 1 As shown, this application provides a CNG refueling vehicle, including a vehicle body 10 and a tubular container 20. The CNG refueling vehicle can refer to the relevant structure and operating method of existing CNG substation trailers. Optionally, the vehicle body 10 of the CNG refueling vehicle can be a semi-trailer.

[0026] The vehicle body 10 has a traction end connected to a tractor unit and a rear end. For ease of description, the direction of the traction end of the vehicle body 10 is defined as "front", and the direction of the rear end of the vehicle body 10 is defined as "rear".

[0027] like Figure 1 As shown, the tubular container 20 is mounted on the vehicle body 10. The tubular container 20 is used to house gas cylinders for gas storage, as well as related pipelines and control devices.

[0028] The specific embodiments of the tubular container 20 of this application will be described in detail below with reference to the accompanying drawings.

[0029] Please see Figure 1 and Figure 2As shown, the tubular container 20 according to an embodiment of this application includes a container frame 100, a gas cylinder 200, and a lifting device 300. The gas cylinder 200 is disposed within the container frame 100, and is fixed at an angle with one end higher than the other within the container frame 100. The higher end of the gas cylinder 200 is provided with a gas outlet pipe 210, and the lower end of the gas cylinder 200 is provided with a liquid inlet / outlet pipe 220. The lifting device 300 is drivenly connected to the container frame 100, and is used to lift one end of the container frame 100, thereby increasing the angle of inclination of the higher end of the gas cylinder 200 relative to the lower end.

[0030] In this application, by configuring the gas cylinder 200 to be tilted and fixed within the container frame 100, that is, by having its own tilt angle, the gas filling process and the liquid return process of the gas cylinder 200 are made smoother. Simultaneously, in conjunction with the lifting device 300's lifting action on the container frame 100, one end of the container frame 100 can be raised to an angle, thereby further increasing the tilt angle of the gas cylinder 200 relative to the ground, thus enabling the gas filling and liquid return processes of the gas cylinder 200 to proceed more smoothly.

[0031] Since the tilt angle of the gas storage structure at existing gas refueling stations is typically within a certain range during refueling operations, and the final tilt angle of the gas cylinder 200 in this application is the sum of the self-tilting angle of the gas cylinder 200 and the tilt angle of the lifting device 300 lifting the container frame 100, the self-tilting angle of the gas cylinder 200 can be designed to be smaller. This allows for the installation of more gas cylinders 200 within the limited height of the container frame 100. A smaller self-tilting angle of the gas cylinder 200 also helps to lower the center of gravity, reduce the probability of danger, and improve the safety of the gas cylinder 200. Furthermore, under the same arrangement conditions, compared to a gas cylinder 200 with a larger tilt angle, a smaller tilt angle of the gas cylinder 200 can maintain the same volume, eliminating the need to reduce the length of the gas cylinder 200 to avoid exceeding the height limit of the tubular container 20 due to an excessively large tilt angle. In addition, the tilt angle of the lifting device 300 in lifting the container frame 100 can be designed to be smaller, which helps to reduce the device cost of the lifting device 300, reduce its power consumption, and thus help to improve the operating economy of the tubular container 20 and the gas truck.

[0032] Since the gas cylinder 200 of this application is inclined, that is, the gas cylinder 200 has a higher end and a lower end, the following description of this exemplary embodiment will be based on the example where the higher end of the gas cylinder 200 is closer to the traction end of the vehicle body 10 and the lower end is closer to the rear end of the vehicle body 10. That is, along the front-rear direction of the vehicle body 10, the higher end of the gas cylinder 200 is in front and the lower end is behind.

[0033] However, it should be understood that in other exemplary embodiments, the higher end of the gas cylinder 200 may also be located near the rear end of the vehicle body 10. Therefore, the following description of such orientation may be varied in different exemplary embodiments without departing from the scope of the principles of the gas-filled vehicle proposed in this application.

[0034] See Figure 1 As shown, the container frame 100 is adapted to be mounted on the vehicle body 10, and the length of the container frame 100 can be arranged along the front-rear direction of the vehicle body 10. For example, the front end of the container frame 100 can be lifted a certain distance by the lifting device 300, so that the container frame 100 is tilted at a certain angle relative to the vehicle body 10.

[0035] like Figure 2 As shown, there can be multiple gas cylinders 200, each gas cylinder 200 is fixed inside the container frame 100 with its front higher than its rear. The tilt angle of the gas cylinder 200 can be the tilt angle of the gas cylinder 200 relative to the bottom surface of the container frame 100. It can be understood that the bottom surface of the container frame 100 can be parallel to the horizontal plane.

[0036] It should be noted that the tilt angle of the gas storage structure at existing gas filling stations is typically 8° to 10° during operation. In the embodiments of this application, such as... Figure 2 As shown, the tilt angle α of the gas cylinder 200 can be designed to be less than or equal to 3°, for example, α = 3°. In other words, the tilt angle α of the gas cylinder 200 relative to the horizontal plane can be less than or equal to 3°.

[0037] In the embodiments of this application, such as Figure 1 As shown, the tilt angle β of the lifting device 300 to lift the container frame 100 can be designed to be 3° to 6°, for example, β=5°. This allows the gas cylinder 200 to meet the tilt angle requirements during gas filling, while also giving the tubular container 10 advantages such as safety and low power consumption.

[0038] Of course, in other embodiments, the tilt angle α of the gas cylinder 200 can also be designed to be other angles, and the tilt angle β of the lifting device 300 lifting the container frame 100 can also be designed to be other angles, which can be set as needed.

[0039] See Figure 2 In one embodiment, the gas cylinder 200 is obliquely fixed within the container frame 100 in the following manner: the tubular container 20 includes a first end plate 110 and a second end plate 120. The first end plate 110 is obliquely disposed at one end of the container frame 100 and is vertically fixed to the higher end of the gas cylinder 200. The second end plate 120 is disposed parallel to the first end plate 110 at the other end of the container frame 100 and is vertically fixed to the lower end of the gas cylinder 200.

[0040] In this embodiment, by tilting the first end plate 110 and the second end plate 120 inside the container frame 100 and connecting and fixing them to both ends of the gas cylinder 200 respectively, the gas cylinder 200 can be tilted. Since the gas cylinder 200 and the corresponding end plate are at a vertical angle, the cylinder mouth of the gas cylinder 200 can be installed vertically with the corresponding end plate without changing the original structure and pipeline of the gas cylinder 200, which facilitates the arrangement and installation of the gas cylinder 200 and pipeline.

[0041] like Figure 2 As shown, a first end plate 110 is disposed at the front end of the container frame 100 for securing the higher end of the gas cylinder 200. A second end plate 120 is disposed at the rear end of the container frame 100 for securing the lower end of the gas cylinder 200. Optionally, the first end plate 110 and the second end plate 120 are each provided with a plurality of flange holes, and both ends of the gas cylinder 200 are respectively provided with connecting flanges. The connecting flanges at the higher ends of the gas cylinder 200 are fixedly connected to the flange holes of the first end plate 110, and the connecting flanges at the lower ends are fixedly connected to the flange holes of the second end plate 120.

[0042] In this embodiment, the connection and fixation of both ends of the gas cylinder 200 can be achieved by the cooperation of the flange hole and the connecting flange, so that multiple gas cylinders 200 can be installed at an angle and fixed inside the container frame 100, thereby improving the installation stability and reliability of the gas cylinders 200.

[0043] See Figure 1 As shown, in one embodiment, the tubular container 20 further includes a support frame 400, which is located below the container frame 100 and is used to support the container frame 100. The support frame 400 is hinged to the lower end of the container frame 100 corresponding to the gas cylinder 200, and a lifting device 300 is disposed on the support frame 400 and drivenly connected to the container frame 100.

[0044] For example, a hinge seat may be provided at the rear end of the support frame 400, and the rear end of the container frame 100 may be hinged to the hinge seat. A lifting device 300 is provided on the support frame 400 and connected to the front end of the container frame 100 to drive the front end of the container frame 100 to lift.

[0045] In this embodiment, by providing a support frame 400, which can be detachably and fixedly connected to the vehicle body 10, and which is used to support and lift the container frame 100, the container frame 100 can be separated from the vehicle body 10. This allows the service life of the tubular container 20 to be no longer limited by the service life of the semi-trailer body 10, meaning the tubular container 20 can still maintain its original design life.

[0046] It is understood that in other embodiments, the support frame 400 may also be omitted. That is, the rear end of the container frame 100 may be hinged to the rear end of the vehicle body 10, and the lifting device 300 is mounted on the vehicle body 10 and can lift the front end of the container frame 100.

[0047] See Figure 1 In an embodiment of this application, the lifting device 300 is used to lift the front end of the container frame 100 so that the tilt angle of the higher end of the gas cylinder 200 relative to the lower end increases.

[0048] For example, the lifting device 300 includes a drive member 310 and a lifting member 320. The drive member 310 is driven to connect with the lifting member 320 and is used to drive the lifting member 320 to perform lifting movements. The top of the lifting member 320 is hinged to the end of the bottom of the container frame 100 corresponding to the higher end of the gas cylinder 200.

[0049] Optionally, the drive component 310 can be an electric motor, and the lifting component 320 can be a screw thread. The electric motor can drive the screw thread for lifting via a worm gear. For example, the electric motor is connected to one end of the worm and is used to drive the worm to rotate. The outer circumferential teeth of the worm gear helically engage with the outer circumferential teeth of the worm gear, and the inner circumferential teeth of the worm gear helically engage with the screw thread. The top end of the screw thread is hinged to the front end of the bottom of the container frame 100.

[0050] In this embodiment, an electric motor drives a worm gear to rotate, which in turn drives a worm wheel to output torque. This worm wheel's rotational motion is then converted into the vertical lifting motion of a lead screw, achieving the lifting of the front end of the container frame 100. This allows for a large-angle tilting of the gas cylinder 200 during refueling operations. Furthermore, the worm gear mechanism possesses a reverse self-locking characteristic, ensuring stable stopping during the lifting process of the front end of the container frame 100. This prevents accidental falls due to its own weight or external loads, improving the safety of lifting the container frame 100. It is understood that in other embodiments, the top end of the lifting member 320 may also be hinged to the middle position of the bottom of the container frame 100. Alternatively, the top end of the lifting member 320 may be hinged to any position between the middle and the front end of the bottom of the container frame 100.

[0051] It is understood that in other embodiments, the lifting device 300 may also be a hydraulic lifting mechanism or a cylinder lifting mechanism, etc.

[0052] See Figure 2 and Figure 3 In this application, the higher end of the gas cylinder 200 is provided with a gas outlet pipe 210, which is used to deliver stored gas, such as hydrogen or compressed natural gas, to the gas dispenser 40. The gas dispenser 40 then dispenses gas to the equipment to be refueled.

[0053] The lower end of the gas cylinder 200 is provided with a liquid inlet / outlet pipe 220. The liquid inlet / outlet pipe 220 is used to inject pressurizing oil or other liquid media into the gas cylinder 200 during the gas filling process to facilitate the venting of gas from the gas cylinder 200. Furthermore, the liquid inlet / outlet pipe 220 is also used to return the pressurizing oil in the gas cylinder 200 to the oil storage device after the gas in the gas cylinder 200 has been vented.

[0054] like Figure 4 As shown, in one embodiment, the tubular container 20 further includes a detection device 500 and a control device 600. The detection device 500 is disposed on the gas outlet pipe 210 and is used to detect the gas discharge volume of the gas cylinders 200. The detection device 500 may be a gas flow meter, capable of detecting the gas discharge flow rate of each gas cylinder 200. The control device 600 may be a programmable logic controller (PLC).

[0055] The control device 600 is signal-connected to the detection device 500 and can be used to receive detection signals from the detection device 500. The control device 600 is also signal-connected to the lifting device 300 and can control the start and stop of the lifting device 300 according to the received detection signals.

[0056] For example, when any gas cylinder 200 is discharging gas to the gas dispenser 40, in the initial stage of discharging, because the gas cylinder 200 has a self-tilting structure with a higher front and lower back, the gas inside the gas cylinder 200 is lighter and can be concentrated at the upper part and gather at the front end of the gas cylinder 200, which can facilitate the gas to be discharged outward through the gas outlet pipe 210 at the front end of the gas cylinder 200.

[0057] Meanwhile, the control device 600 can monitor the unloading volume of the gas cylinder 200 in real time through the detection device 500. When the unloading volume of the gas in the gas cylinder 200 reaches a set value, for example, when about 50% of the gas in the gas cylinder 200 has been discharged, the control device 600 can control the lifting device 300 to start, thereby raising the front end of the container frame 100. This increases the tilt angle of the gas cylinder 200, allowing the gas in the gas cylinder 200 to be discharged more smoothly, thus achieving an unloading rate of over 95% for the gas cylinder 200, while preventing liquid from overflowing from the gas cylinder 200.

[0058] In this embodiment, by setting a control device 600 to control the start and stop of the lifting device 300 according to the received detection signal, that is, the control device 600 can automatically switch to start the lifting device 300 according to the amount of gas unloading from the gas cylinder 200, thereby making the operation of the gas refueling vehicle more intelligent and controllable, and ensuring the smooth progress of the gas refueling operation.

[0059] See Figure 2In this application, the gas outlet pipeline 210 and liquid inlet / outlet pipeline 220 of the gas cylinder 200 can be configured with reference to the pipeline configuration of the gas storage structure of existing gas station trailers. For example, the tubular container 20 may include a first control valve 211 disposed on the gas outlet pipeline 210 and a second control valve 221 disposed on the liquid inlet / outlet pipeline 220.

[0060] The first control valve 211 can be a pneumatic switching valve. The second control valve 221 can be a pneumatic switching valve.

[0061] The control device 600 can be connected to the first control valve 211 and the second control valve 221 respectively, and is used to control the opening and closing of the first control valve 211 and the second control valve 221 respectively. Thus, by setting the first control valve 211 and the second control valve 221 and controlling them by the control device 600, the automatic opening or closing of the gas outlet pipeline 210 and the liquid inlet / outlet pipeline 220 can be realized, so as to realize the gas unloading and liquid inlet / outlet operations of the gas cylinder 200.

[0062] Optionally, the gas cylinder 200 may also be equipped with a first manual switch valve 212 and a safety valve 213 on the gas outlet pipeline 210 to ensure the normal and safe use of the gas outlet pipeline 210.

[0063] Optionally, a second manual switch valve 222 may be provided on the inlet and outlet liquid lines 220 of the gas cylinder 200 to ensure the normal and safe use of the inlet and outlet liquid lines 220. A pressure gauge 223 may also be provided on the inlet and outlet liquid lines 220 of the gas cylinder 200 to monitor the pressure status inside the gas cylinder 200 in real time.

[0064] When the tubular container 20 and the gas truck of this application embodiment are in operation: After the gas truck is in place, first connect the inlet and outlet liquid pipelines 220 at the rear end of each gas cylinder 200 in the tubular container 20 to the external liquid storage device 30, and connect the outlet gas pipeline 210 at the front end of each gas cylinder 200 to the gas dispenser 40.

[0065] like Figure 3 As shown, assuming the gas truck has n gas cylinders 200, taking the output of hydrogen from gas cylinders 200a and 200b to the hydrogen dispenser as an example, the operation of other gas cylinders 200 is similar. First, on-site, open the first manual switch valve 212 on the gas outlet pipeline 210 of gas cylinders 200a and 200b and the second manual switch valve 222 on the liquid inlet and outlet pipelines 220.

[0066] When the control device 600 opens the first control valve 211 of the gas cylinder 200a, the hydrogen gas in the gas cylinder 200a enters the hydrogen dispenser via the first control valve 211 and the first manual switch valve 212 to achieve the hydrogen refueling function. As the hydrogen gas is output from the gas cylinder 200a, the pressure inside the gas cylinder 200a decreases. The control device 600 can then control the opening of the second control valve 221 of the gas cylinder 200a, allowing the pressurized oil from the external liquid storage device 30 to enter the gas cylinder 200a via the second control valve 221 and the second manual switch valve 222 under the action of the high-pressure pump 31. This compensates for the pressure inside the gas cylinder 200a, facilitating the complete discharge of hydrogen gas from the gas cylinder 200a.

[0067] During the entire hydrogen unloading process of cylinder 200a, in the initial stage of unloading, cylinder 200a can utilize its small-angle tilting structure to unload hydrogen. When the amount of hydrogen unloaded from cylinder 200a reaches the set value, the control device 600 automatically switches to start the lifting device 300. The motor then drives the screw through a worm gear to lift the front end of the container frame 100 to a certain height, increasing the tilt angle of cylinder 200a. This facilitates the smoother discharge of hydrogen from cylinder 200a, improving the unloading rate. Furthermore, the increased tilt angle of cylinder 200a by the lifting device 300 prevents the pressurized oil level from reaching the outlet prematurely, allowing for more complete expulsion of hydrogen and reducing transportation costs.

[0068] After the hydrogen in cylinder 200a is completely discharged, the high-pressure pump 31 is turned off to stop the continued input of pressurized oil into cylinder 200a. At this time, the pressurized oil in cylinder 200a can return to the external storage device 30 through the inlet and outlet liquid pipelines 220 of cylinder 200a under the action of gravity and the pressure of the residual hydrogen in the cylinder. Since the tilt angle of cylinder 200a is relatively large at this time, that is, the tilt angle of cylinder 200a is the sum of the tilt angle of cylinder 200a and the tilt angle of the lifting device 300 lifting the container frame 100, the return liquid process can be ensured to proceed smoothly.

[0069] Subsequently, the control device 600 opens the first control valve 211 and the second control valve 221 of the gas cylinder 200b, allowing hydrogen gas inside the gas cylinder 200b to be output to the hydrogen dispenser via the gas outlet pipe 210 of the gas cylinder 200b. Simultaneously, pressurized oil enters the gas cylinder 200b via the liquid inlet and return pipes 220 of the gas cylinder 200b. After the hydrogen gas inside the gas cylinder 200b has been completely discharged, the pressurized oil inside can return to the external liquid storage device 30 via the liquid inlet and return pipes 220 of the gas cylinder 200b under the influence of gravity and the pressure of the residual hydrogen gas inside the cylinder. By repeating this gas discharge and liquid return process, the purpose of continuously outputting hydrogen gas from multiple gas cylinders 200 to the hydrogen dispenser can be achieved.

[0070] The tubular container and gas filling vehicle of this application embodiment, by setting the gas cylinders as inclined and fixed within the container frame, that is, the gas cylinders have an inherent tilt angle, makes the gas filling process and the liquid return process after filling smoother. At the same time, with the lifting device lifting the container frame, one end of the container frame can be raised to an angle, thereby further increasing the tilt angle of the gas cylinders relative to the ground, and thus making the gas filling and liquid return processes even smoother.

[0071] Furthermore, the self-tilting angle of the gas cylinders can be designed to be smaller, which helps maintain a constant cylinder volume and allows for the installation of more cylinders within a container frame with limited height. A smaller self-tilting angle also helps reduce the probability of hazards and improves the safety of the gas cylinders. The tilting angle of the lifting device on the container frame can also be designed to be smaller, which helps reduce the device's cost and power consumption, thereby improving the operational economy of tubular containers and CNG trucks.

[0072] The tubular container and refueling vehicle of this application integrate gas storage, transportation, and refueling functions. It is suitable not only for gas storage and refueling at gas stations but also for transporting stored gas to any location requiring refueling. Especially when the tubular container and refueling vehicle are moved to a location without power for refueling, the self-tilting structure of the gas cylinders enables refueling, ensuring a smooth refueling process and guaranteeing the feasibility of emergency refueling.

[0073] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used.

[0074] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A tubular container, characterized in that, include: Container frame; Gas cylinder, the gas cylinder is located inside the container frame, the gas cylinder is fixed in the container frame at an angle with one end higher and the other end lower, the higher end of the gas cylinder is provided with a gas outlet pipe, and the lower end of the gas cylinder is provided with a liquid inlet and outlet pipe. A lifting device is driven to the container frame and is used to lift one end of the container frame so that the tilt angle of the higher end of the gas cylinder relative to the lower end increases.

2. The tubular container according to claim 1, characterized in that, The angle of inclination of the gas cylinder relative to the horizontal plane is less than or equal to 3°.

3. The tubular container according to claim 1, characterized in that, The lifting device raises the container frame at an angle of 3° to 6°.

4. The tubular container according to claim 1, characterized in that, Also includes: A detection device is installed on the gas outlet pipe to detect the amount of gas discharged from the gas cylinder. A control device is provided, which is signal-connected to the detection device and the lifting device. The control device is used to receive the detection signal from the detection device and control the start and stop of the lifting device according to the detection signal.

5. The tubular container according to claim 4, characterized in that, Also includes: A first control valve is disposed on the outlet pipe, and the control device is connected to the first control valve and is used to control the opening and closing of the first control valve. The second control valve is installed on the inlet and outlet liquid lines. The control device is connected to the second control valve and is used to control the opening and closing of the second control valve.

6. The tubular container according to claim 1, characterized in that, It also includes a support frame located below the container frame, the support frame being used to support the container frame, the support frame being hinged to the lower end of the container frame corresponding to the lower end of the gas cylinder, and the lifting device being mounted on the support frame and drivenly connected to the container frame.

7. The tubular container according to claim 6, characterized in that, The lifting device includes a drive component and a lifting component. The drive component is driven to connect with the lifting component and is used to drive the lifting component to perform lifting movements. The top end of the lifting component is hinged to the bottom of the container frame corresponding to the higher end of the gas cylinder.

8. The tubular container according to claim 1, characterized in that, include: The first end plate is inclinedly disposed at one end of the container frame and is fixed perpendicularly to the higher end of the gas cylinder; as well as The second end plate is disposed at the other end of the container frame, parallel to the first end plate, and is fixed perpendicularly to the lower end of the gas cylinder.

9. The tubular container according to claim 8, characterized in that, The first end plate and the second end plate are respectively provided with a plurality of flange holes. The two ends of the gas cylinder are respectively provided with connecting flanges. The connecting flanges at the higher end of the gas cylinder are fixedly connected to the flange holes of the first end plate, and the connecting flanges at the lower end are fixedly connected to the flange holes of the second end plate.

10. A gas-powered vehicle, characterized in that, It includes a vehicle body and a tubular container as described in any one of claims 1 to 9, wherein the tubular container is disposed on the vehicle body.

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