Automatic loading and unloading system and tank car

Abstract

The automatic loading and unloading system comprises a tank body, a loading and unloading valve, a pneumatic butterfly valve, a pilot valve and a control panel, and an air outlet of the pilot valve is connected with an air inlet of the pneumatic butterfly valve; the control panel is used for being installed on one side of the tank body, an air inlet connector and a push-pull valve are arranged on the control panel, an air inlet of the air inlet connector is used for being connected with an air source, and an air outlet of the air inlet connector is connected with an air inlet of the push-pull valve and an air inlet of the pilot valve through a three-way connector; an air outlet of the push-pull valve is connected with an air inlet of the loading and unloading valve and a control air port of the pilot valve through the three-way connector, and when the push-pull valve is opened, the air inlet and the air outlet of the pilot valve can be driven to be communicated, and the loading and unloading valve is driven to be opened. The push-and-pull valve and the pilot valve are arranged, the pilot valve controls air source supply of the pneumatic butterfly valve, the push-and-pull valve controls a small-flow air source to control the pilot valve to work, model selection of the push-and-pull valve on the control panel can be reduced, operation is convenient, and attractiveness and practicability are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of transportation, and particularly relates to an automatic loading and unloading system and a tank car. BACKGROUND

[0002] In the loading and unloading operation of oil, the loading and unloading of liquid cargo is carried out through a top manhole device or a loading and unloading valve, or a bottom loading and unloading valve. Usually, manual operation is required. The opening and closing operation of the manhole device or the loading and unloading valve is complex, the operation intensity is large, and the operation efficiency is low, which is not suitable for the current automatic and intelligent loading and unloading operation requirements.

[0003] In the related art, part of the loading and unloading operation of oil adopts a pneumatic control system to reduce the operation difficulty of the operator and improve the operation efficiency. The opening and closing of the valve are realized by operating the gas valve. However, because the gas pressure required for the valve action is large, there are still certain limitations and inconveniences in the selection and operation of the gas valve. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides an automatic loading and unloading system and a tank car, which is more flexible in gas valve selection and convenient in operation, and improves the aesthetic and practicality.

[0005] In a first aspect, the present application provides an automatic loading and unloading system, comprising:

[0006] a tank body;

[0007] a loading and unloading valve installed at the bottom of the tank body;

[0008] a pneumatic butterfly valve, one end of which is connected to the loading and unloading valve through a pipeline, and the other end is used for connecting an external pipeline;

[0009] a pilot valve, the gas outlet of the pilot valve being connected to the gas inlet of the pneumatic butterfly valve;

[0010] a control panel, which is used for being installed on one side of the tank body, the control panel being provided with an air inlet joint and a push-pull valve, the air inlet of the air inlet joint being used for being connected to a gas source, and the air outlet of the air inlet joint being connected to the air inlet of the push-pull valve and the air inlet of the pilot valve through a three-way joint;

[0011] wherein the air outlet of the push-pull valve is connected to the air inlet of the loading and unloading valve and the control air inlet of the pilot valve through a three-way joint. When the push-pull valve is opened, the air inlet and the air outlet of the pilot valve are guided to be communicated, and the loading and unloading valve is driven to be opened.

[0012] The automatic loading and unloading system according to the application is connected with an external air source through an air inlet joint, and the opening and closing of the pneumatic butterfly valve and the loading and unloading valve are controlled through the push-pull valve and the pilot valve, thereby reducing the labor intensity of the operator, and the air source supply of the pneumatic butterfly valve is controlled through the pilot valve, and the push-pull valve controls the small-flow air source to control the pilot valve to work, so that the selection of the push-pull valve on the control panel can be reduced, the operation is facilitated, and the aesthetic appearance and practicability are improved.

[0013] According to one embodiment of the application, the automatic loading and unloading system further comprises:

[0014] The quick exhaust valve is connected with the air outlet of the push-pull valve and the air source port of the quick exhaust valve, the execution port of the quick exhaust valve is connected with the air inlet of the loading and unloading valve, and the atmosphere port of the quick exhaust valve is connected with the atmosphere.

[0015] According to one embodiment of the application, the control panel is further provided with a quick cut-off valve, the air outlet of the air inlet joint is connected with the air inlet of the quick cut-off valve, and the air outlet of the quick cut-off valve is connected with the air inlet of the push-pull valve.

[0016] According to one embodiment of the application, the air outlet of the quick cut-off valve is connected with the air inlets of the push-pull valve and the pilot valve through a three-way joint.

[0017] According to one embodiment of the application, the automatic loading and unloading system further comprises:

[0018] The relief valve is installed on the top of the tank body, and the air outlet of the push-pull valve is connected with the air inlet of the relief valve.

[0019] According to one embodiment of the application, the control panel is provided with a display, and the air outlet of the relief valve is connected with the display on the control panel.

[0020] According to one embodiment of the application, the automatic loading and unloading system further comprises:

[0021] The liquid level sensor is arranged in the tank body.

[0022] The pressure switch is arranged on the control panel, the liquid level sensor is electrically connected with the electrical control socket through the pressure switch, and the air outlet of the relief valve is connected with the air inlet of the pressure switch.

[0023] According to one embodiment of the application, the control panel is provided with two, and the two control panels are arranged on the two sides of the tank body, respectively.

[0024] The pneumatic butterfly valve is provided with two, and the two pneumatic butterfly valves are arranged on the two sides of the tank body, respectively, and the loading and unloading valve is connected with the two pneumatic butterfly valves through a three-way pipeline.

[0025] The pilot valve is provided with two corresponding to the two pneumatic butterfly valves and the two control panels.

[0026] According to one embodiment of the present application, the automatic loading and unloading system further comprises:

[0027] The shuttle valve is connected with the two gas outlets of the two push-pull valves and the two gas inlets of the shuttle valve, and the gas outlet of the shuttle valve is connected with the gas inlet of the loading and unloading valve.

[0028] In a second aspect, the present application provides a tank truck comprising the automatic loading and unloading system according to any one of the first aspect.

[0029] The tank truck provided in the second aspect of the present application has the same beneficial effects as the automatic loading and unloading system provided in the first aspect of the present application, and will not be described here again.

[0030] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description of embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the description of embodiments, given by reference to the following drawings:

[0032] Figure 1 is a structural schematic diagram of the automatic loading and unloading system provided by the embodiments of the present application.

[0033] REFERENCE NUMERALS

[0034] 100, automatic loading and unloading system; 1, loading and unloading valve; 2, pneumatic butterfly valve; 3, gas inlet connector; 4, push-pull valve; 5, pilot valve; 6, quick exhaust valve; 7, quick cut-off valve; 8, relief valve; 9, shuttle valve; 10, display; 11, liquid level sensor; 12, pressure switch; 13, electrical control socket; 14, tee connector. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0036] The following description refers to the accompanying drawings of the present application. Figure 1 The automatic loading and unloading system and the tank truck according to the embodiments of the present application are described below.

[0037] Please refer to Figure 1 The embodiments of the present application provide an automatic loading and unloading system 100, which comprises a tank body, a loading and unloading valve 1, a pneumatic butterfly valve 2, a pilot valve 5 and a control panel.

[0038] The tank body is the main structural part of the automatic loading and unloading system 100, and is used to store liquid cargo.

[0039] The loading and unloading valve 1 is installed at the bottom of the tank body, facilitating the connection of the pipeline, and the gravity can help the liquid flow out of the tank more naturally during unloading, improving the unloading efficiency, and reducing the risk of liquid splashing during refueling, improving safety.

[0040] One end of the pneumatic butterfly valve 2 is connected to the loading and unloading valve 1 through a pipeline, and the other end of the pneumatic butterfly valve 2 is used to connect the external pipeline, which can realize the control of pipeline communication or closing through the pneumatic butterfly valve 2 and the loading and unloading valve 1 during loading and unloading, which is safer and more convenient to operate.

[0041] The gas outlet of the pilot valve 5 is connected to the gas inlet of the pneumatic butterfly valve 2, which is used to control the opening and closing of the pneumatic butterfly valve 2, that is, the power source of the pneumatic butterfly valve 2 is controlled by the pilot valve 5.

[0042] The control panel is used to be installed on one side of the tank body, and the control panel is provided with the air inlet connector 3 and the push-pull valve 4, the air inlet of the air inlet connector 3 is used to be connected with the gas source, and the air outlet of the air inlet connector 3 is connected with the air inlet of the push-pull valve 4 and the air inlet of the pilot valve 5 through the three-way connector 14.

[0043] The control panel is installed on one side of the tank body, which is the interface for the operator to interact with the system. The control panel is provided with the air inlet connector 3 and the push-pull valve 4, which is used to operate the entire loading and unloading process. The air inlet of the air inlet connector 3 is used to be connected with the external gas source, usually using a quick connector to facilitate quick connection and disconnection, improving the loading and unloading efficiency. The air outlet of the air inlet connector 3 is connected with the air inlet of the push-pull valve 4 and the air inlet of the pilot valve 5 through the three-way connector 14, ensuring that the gas source can be supplied to the push-pull valve 4 and the pilot valve 5 at the same time.

[0044] Among them, the air outlet of the push-pull valve 4 is connected with the air inlet of the loading and unloading valve 1 and the control air port of the pilot valve 5 through the three-way connector 14, and when the push-pull valve 4 is opened, the air inlet and the air outlet of the pilot valve 5 are driven to be communicated, and the loading and unloading valve 1 is driven to be opened.

[0045] The push-pull valve 4 is a two-way valve, and the movement of the valve core is realized by operating the push-pull button of the push-pull valve 4. In the open state, the valve core is pushed into the seat body to form a channel, allowing the medium to flow smoothly through the valve. In the closed state, the valve core is pulled out of the seat body to form a seal, preventing the medium from flowing. By opening the push-pull valve 4, the flow path is connected, and the outlet of the push-pull valve 4 supplies gas to the inlet of the loading and unloading valve 1 through the three-way joint 14 to open the loading and unloading valve 1, and also supplies gas to the control gas port of the pilot valve 5. The pilot valve 5 can be a two-position three-way valve. After the control gas port of the pilot valve 5 is supplied with gas, the pressure change drives the valve core of the pilot valve 5 to move, realizing the connection of the inlet and outlet of the pilot valve 5, and further realizing the opening of the pneumatic butterfly valve 2. Because the required opening force of the pneumatic butterfly valve 2 is mainly provided by the pilot valve 5, the pilot valve 5 can be selected to be larger to meet the requirement of opening force. The push-pull valve 4 only needs to provide the air pressure signal for the action of the pilot valve 5, so the selection of the push-pull valve 4 can be smaller, reducing the operating force of the operator, improving the convenience of operation, and the installation of the push-pull valve 4 on the control panel is easier, and the appearance is better.

[0046] In actual execution, during the loading and unloading operation, the operator connects the gas pipe to the inlet joint 3 through the quick connector to supply compressed air to the inlet of the push-pull valve 4 and the inlet of the pilot valve 5. The operator presses the push-pull button of the push-pull valve 4 to open the push-pull valve 4 to supply compressed air to the inlet of the loading and unloading valve 1 and the control gas port of the pilot valve 5. After the inlet of the loading and unloading valve 1 receives the air pressure change signal, it drives the opening through the internal driving mechanism. After the control gas port of the pilot valve 5 receives the air pressure change signal, the pilot valve 5 is actuated to connect the inlet and outlet of the pilot valve 5, so that high-pressure gas is supplied to the pneumatic butterfly valve 2 to drive the pneumatic butterfly valve 2 to open. After the loading and unloading operation is completed, the operator pulls up the push-pull button of the push-pull valve 4, the push-pull valve 4 is closed and the gas source is disconnected, the inlet of the loading and unloading valve 1 loses pressure and closes, the control gas port of the pilot valve 5 loses pressure, the pilot valve 5 is reset under the action of the spring, the inlet and outlet of the pilot valve 5 are disconnected, the outlet of the pilot valve 5 is connected to the exhaust port, so that the air between the pilot valve 5 and the pneumatic butterfly valve 2 is exhausted through the exhaust port of the pilot valve 5, and the pneumatic butterfly valve 2 loses power and resets to close, thereby completing the closing of the entire system.

[0047] According to the automatic loading and unloading system 100 provided by the embodiment of the present application, the inlet joint 3 is connected to the external gas source, the opening and closing of the pneumatic butterfly valve 2 and the loading and unloading valve 1 are controlled by the push-pull valve 4 and the pilot valve 5, the labor intensity of the operator is reduced, and the operation efficiency is improved. The air supply for the pneumatic butterfly valve 2 is controlled by the pilot valve 5, and the push-pull valve 4 controls the small flow gas source to control the work of the pilot valve 5, so that the selection of the push-pull valve 4 on the control panel can be reduced, the operation is convenient, and the appearance and practicability are improved.

[0048] Please refer to Figure 1According to some embodiments of the present application, the automatic loading and unloading system 100 can further include a quick exhaust valve 6. The outlet of the push-pull valve 4 can be connected to the gas source port of the quick exhaust valve 6. The execution port of the quick exhaust valve 6 can be connected to the gas inlet of the loading and unloading valve 1. The atmosphere port of the quick exhaust valve 6 can be in communication with the atmosphere.

[0049] By providing the quick exhaust valve 6, the outlet of the push-pull valve 4 outputs gas to the controller port of the pilot valve 5 and the gas source port of the quick exhaust valve 6 through the tee joint 14. After the gas source port of the quick exhaust valve 6 receives gas, the valve core in the quick exhaust valve 6 moves to the atmosphere port and blocks the atmosphere port, so that the gas source port is in communication with the execution port. High-pressure gas is output to the gas inlet of the loading and unloading valve 1 through the execution port of the quick exhaust valve 6, and the loading and unloading valve 1 is controlled to open.

[0050] After the loading and unloading operation is completed, the push-pull valve 4 is disconnected, and the gas source port of the quick exhaust valve 6 does not receive compressed gas. The compressed gas in the loading and unloading valve 1 can return to the execution port of the quick exhaust valve 6, and the valve core moves to the gas source port and blocks the gas source port, so that the execution port is in communication with the atmosphere port. The compressed gas in the loading and unloading valve 1 can be quickly exhausted through the atmosphere port. This design enables the quick exhaust valve 6 to quickly release the pressure in the pneumatic system, accelerate the movement speed of the execution element, and shorten the working cycle.

[0051] Please refer to Figure 1 The control panel can further be provided with a quick cut-off valve 7. The outlet of the gas inlet joint 3 can be connected to the gas inlet of the quick cut-off valve 7. The outlet of the quick cut-off valve 7 can be connected to the gas inlet of the push-pull valve 4.

[0052] The quick cut-off valve 7 is integrated on the control panel and located between the outlet of the gas inlet joint 3 and the gas inlet of the push-pull valve 4. This layout enables the quick cut-off valve 7 to quickly cut off the gas source in an emergency or when needed, ensuring the safety of the system.

[0053] In normal operation, the quick cut-off valve 7 remains in an open state, allowing compressed air from the gas inlet joint 3 to flow to the push-pull valve 4, thereby controlling the opening and closing of the pneumatic butterfly valve 2 and the loading and unloading valve 1. When emergency stop or maintenance is needed, the operator can quickly cut off the gas source through the quick cut-off valve 7 handle or button on the control panel, preventing compressed air from flowing to the push-pull valve 4, thereby immediately stopping the operation of the pneumatic butterfly valve 2 and the loading and unloading valve 1.

[0054] The quick cut-off valve 7 provides a quick response mechanism that can quickly cut off the gas source in emergency situations. Since the quick cut-off valve 7 is installed on the control panel, the operator can easily access and operate, improving the convenience of operation. The quick cut-off valve 7 enhances the safety of the system, providing an additional safety measure for the operator, helping to prevent accidents and reduce the risk of accidents.

[0055] Referring to Figure 1 According to some embodiments of the present application, the gas outlet of the quick cut-off valve 7 can be connected to the gas inlet of the push-pull valve 4 and the gas inlet of the pilot valve 5 through the tee joint 14.

[0056] Through the tee joint 14, the quick cut-off valve 7 can simultaneously control the gas supply of the push-pull valve 4 and the pilot valve 5, simplifying the control process of the system. The combination of the quick cut-off valve 7 and the tee joint 14 allows the operator to easily control the gas source, improving the convenience of operation, and in the event of failure of the pilot valve 5, the gas supply to the pneumatic butterfly valve 2 can also be cut off, making it safer and further improving safety performance and reducing the risk of accidents.

[0057] Referring to Figure 1 The automatic loading and unloading system 100 can also include a relief valve 8 installed on the top of the tank, and the gas outlet of the push-pull valve 4 is connected to the gas inlet of the relief valve 8.

[0058] The relief valve 8 can release the pressure in the tank when needed to ensure the safety of the system and reduce the accumulation of pressure inside the tank. By connecting the gas inlet of the relief valve 8 to the gas outlet of the push-pull valve 4, compressed gas can be output to the relief valve 8 to control the opening of the relief valve 8. This design allows the push-pull valve 4 to release excess gas through the relief valve 8 during operation, thereby controlling the pressure inside the tank.

[0059] Referring to Figure 1 According to some embodiments of the present application, a display 10 can be provided on the control panel, and the gas outlet of the relief valve 8 can be connected to the display 10 on the control panel.

[0060] The display 10 can be integrated on the control panel and can be used to display key parameters and status information of the system in real time, enhancing the monitoring capability of the system. The display 10 can display key parameters such as pressure, temperature, loading and unloading progress, and the working status of the system, such as the opening and closing status of the pneumatic butterfly valve 2 and the loading and unloading valve 1.

[0061] The gas outlet of the relief valve 8 is connected with a display 10 on the control panel, and the display 10 can determine whether the gas outlet of the relief valve 8 blows out gas, so as to determine whether the gas circuit is connected, and further determine whether the loading and unloading valve 1 and the pneumatic butterfly valve 2 are normally opened, thereby providing instant feedback for the operator.

[0062] Please refer to Figure 1 According to some embodiments of the present application, the automatic loading and unloading system 100 further comprises a liquid level sensor 11 and a pressure switch 12. The liquid level sensor 11 is arranged in the tank body, and an electrical control socket 13 is arranged on the control panel. The liquid level sensor 11 is electrically connected with the electrical control socket 13 through the pressure switch 12, and the gas outlet of the relief valve 8 is connected with the gas inlet of the pressure switch 12.

[0063] The liquid level sensor 11 is arranged in the tank body and is used to monitor the change of the liquid level of the liquid cargo in the tank in real time. The liquid level sensor 11 is electrically connected with the electrical control socket 13 through the pressure switch 12, so that the change of the liquid level monitored by the liquid level sensor 11 is converted into an electrical signal, which is transmitted to the control panel through the pressure switch 12, and then transmitted to the ground control center through the electrical control socket 13. When the liquid level reaches a threshold value, the supply can be stopped through the ground control center to avoid overflow caused by excessive filling.

[0064] The gas outlet of the relief valve 8 is connected with the gas inlet of the pressure switch 12. The gas outlet of the relief valve 8 can be connected with the display 10 and the pressure switch 12 through a tee joint 14, so that part of the gas blown out through the gas outlet of the relief valve 8 is received by the display 10, and the other part of the gas blows out the pressure switch 12 to make the pressure switch 12 close, thereby making the circuit between the liquid level sensor 11 and the electrical control socket conductive.

[0065] Please refer to Figure 1 According to some embodiments of the present application, two control panels can be arranged, and the two control panels are arranged on the two sides of the tank body respectively. Two pneumatic butterfly valves 2 are arranged, and the two pneumatic butterfly valves 2 are arranged on the two sides of the tank body respectively. The loading and unloading valve 1 is connected with the two pneumatic butterfly valves 2 through a tee pipe. The pilot valve 5 can be provided with two corresponding to the two pneumatic butterfly valves 2 and the two control panels.

[0066] In the present embodiment, two control panels, two pneumatic butterfly valves 2 and two pilot valves 5 are arranged on the two sides of the tank body respectively, so that two sets of pneumatic control systems are arranged on the two sides of the tank body respectively. Each control panel can control the pilot valve 5 and the pneumatic butterfly valve 2 on the corresponding side, so that the operator can realize loading and unloading operation on both sides of the tank body. In actual operation, the operator can choose to perform loading and unloading operation from either side of the tank body according to needs, thereby improving the operation convenience.

[0067] Please refer to Figure 1According to some embodiments of the present application, the automatic loading and unloading system 100 can further comprise a shuttle valve 9, the outlet of the two push-pull valves 4 is connected to the two inlets of the shuttle valve 9, and the outlet of the shuttle valve 9 is connected to the inlet of the loading and unloading valve 1.

[0068] The shuttle valve 9 has three interfaces, including two inlets and one outlet, and is installed in a pneumatic control circuit to control and switch the flow direction of the air source of the two push-pull valves 4. By setting the shuttle valve 9, only the air source of one push-pull valve 4 is allowed to flow to the inlet of the loading and unloading valve 1 at any time, and when the air source of one push-pull valve 4 is allowed to flow through the shuttle valve 9, the air source of the other push-pull valve 4 is blocked.

[0069] The interlocking mechanism of the shuttle valve 9 ensures that there are no two air sources flowing to the loading and unloading valve 1 at the same time, improving the safety of the system.

[0070] In an example, the outlet of the shuttle valve 9 is connected to the air source port of the quick exhaust valve 6 and the inlet of the exhaust valve 8 through a tee joint 14.

[0071] The present application also provides a tank car.

[0072] The tank car comprises the automatic loading and unloading system 100 according to any one of the above technical solutions.

[0073] It should be understood that the tank car according to the embodiments of the present application comprises the automatic loading and unloading system 100 according to any one of the above technical solutions, and therefore has the technical features and advantages of the automatic loading and unloading system 100 according to any one of the above technical solutions, which will not be described here.

[0074] It should be understood that the tank car according to the embodiments of the present application comprises the automatic loading and unloading system 100 according to any one of the above technical solutions, and therefore has the technical features and advantages of the automatic loading and unloading system 100 according to any one of the above technical solutions, which will not be described here.

[0075] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a category, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0076] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0077] In the description of the present application, "first feature" and "second feature" can include one or more of the features.

[0078] In the description of the present application, "a plurality of" means two or more.

[0079] In the description of the present application, "above" or "below" the first feature of the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.

[0080] In the description of the present application, "above", "over" and "on" the first feature of the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height.

[0081] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0082] Although embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An automatic loading and unloading system, characterized in that: include: Tank; a loading and unloading valve, installed at the bottom of the tank; A pneumatic butterfly valve, one end of which is connected to the loading and unloading valve through a pipeline, and the other end is used to connect to an external pipeline; A pilot valve, wherein the air outlet of the pilot valve is connected to the air inlet of the pneumatic butterfly valve; A control panel is installed on one side of the tank body. The control panel is provided with an air inlet connector and a push-pull valve. The air inlet of the air inlet connector is used to be connected to the air source. The air outlet of the air inlet connector is connected to the air inlet of the push-pull valve and the air inlet of the pilot valve through a three-way connector. Among them, the air outlet of the push-pull valve is connected to the air inlet of the loading and unloading valve and the control air port of the pilot valve through a three-way joint. When the push-pull valve is opened, it can drive the air inlet of the pilot valve to be connected to the air outlet and drive the loading and unloading valve to open.

2. The automatic loading and unloading system according to claim 1, characterized in that: Also includes: A quick exhaust valve, the air outlet of the push-pull valve is connected to the air source port of the quick exhaust valve, the execution port of the quick exhaust valve is connected to the air inlet of the loading and unloading valve, and the atmospheric port of the quick exhaust valve is connected to the atmosphere.

3. The automatic loading and unloading system according to claim 1, characterized in that: The control panel is also provided with a quick shut-off valve, the air outlet of the air inlet connector is connected to the air inlet of the quick shut-off valve, and the air outlet of the quick shut-off valve is connected to the air inlet of the push-pull valve.

4. The automatic loading and unloading system according to claim 3, characterized in that: The air outlet of the quick shut-off valve is connected to the air inlet of the push-pull valve and the air inlet of the pilot valve through a three-way joint.

5. The automatic loading and unloading system according to claim 1, characterized in that: Also includes: The discharge valve is installed on the top of the tank body, and the air outlet of the push-pull valve is connected to the air inlet of the discharge valve.

6. The automatic loading and unloading system according to claim 5, characterized in that: The control panel is provided with a display, and the air outlet of the discharge valve is connected to the display on the control panel.

7. The automatic loading and unloading system according to claim 5, characterized in that: Also includes: A liquid level sensor, configured to be disposed within the tank; A pressure switch is provided on the control panel with an electrical control socket, the liquid level sensor is electrically connected to the electrical control socket through the pressure switch, and the air outlet of the discharge valve is connected to the air inlet of the pressure switch.

8. The automatic loading and unloading system according to any one of claims 1 to 7, characterized in that: There are two control panels, which are respectively arranged on both sides of the tank body; There are two pneumatic butterfly valves, which are respectively arranged on both sides of the tank body, and the loading and unloading valve is connected to the two pneumatic butterfly valves through a three-way pipeline; Two pilot valves are provided corresponding to the two pneumatic butterfly valves and the two control panels.

9. The automatic loading and unloading system according to claim 8, characterized in that: Also includes: The shuttle valve, the air outlets of the two push-pull valves are connected to the two air inlets of the shuttle valve, and the air outlet of the shuttle valve is connected to the air inlet of the loading and unloading valve.

10. A tank truck, characterized in that: Comprising the automatic loading and unloading system according to any one of claims 1-9.

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