Tank car filling control system and tank car

Abstract

The utility model provides a filling control system of a tank car and the tank car. The filling control system of the tank car comprises a connecting pipeline, a first control valve, detection equipment and a controller. And the connecting pipeline is communicated between the driving gas source and the emergency cut-off control valve group on the tank body, so that the driving gas source can drive the emergency cut-off control valve group to be switched on or switched off. Meanwhile, the first control valve is arranged on the connecting pipeline so as to control connection or disconnection of the connecting pipeline. The detection device is installed on the tank car and used for detecting safety signals. The controller is electrically connected with the detection equipment and the first control valve to receive the safety signal and control the first control valve to be switched off through the safety signal, and when the first control valve is switched off, the emergency cut-off control valve set is switched off, so that the safety of filling and discharging of the tank body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile tank trucks, and particularly relates to a tank truck filling control system and a tank truck. Background Art

[0002] In the field of inflammable and explosive gases, such as liquefied petroleum gas, LNG, etc., in the tank trucks used for filling the liquid or liquefied gas, due to the complex working environment and operating conditions, in order to ensure the safety of the tank truck and the tank body, the tank truck or the tank body is equipped with an emergency cut-off device, so that in the process of loading and unloading operations of the tank truck or the tank body, in case of an emergency, the emergency cut-off device can timely close the filling valve to ensure the safety of the operation.

[0003] At present, a hand-pulled emergency cut-off control system is often adopted on the tank truck, which drives a hand-pulled brake cable through a ratchet to be able to emergently cut off the filling valve. Generally, an operation box is arranged on the tank truck, and a handle is arranged in the operation box. Under normal loading and unloading conditions, the handle can control the conduction or disconnection of the filling valve through the brake cable. At the same time, a control handle capable of controlling the filling valve is also configured at the tail of the tank truck, and it is connected to the filling valve through a brake cable to control the conduction or disconnection of the filling valve.

[0004] However, the routing of the brake cable of the hand-pulled emergency cut-off control system is complex. If the middle of the brake cable is stuck, it will affect the conduction or disconnection of the filling valve. At the same time, the brake cable is prone to rust or breakage during use, and when the emergency cut-off control system is blocked by sundries, the emergency cut-off control system cannot work normally, thereby affecting the conduction or disconnection of the filling valve and the efficiency and safety of the loading and unloading operations of the tank truck. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a filling control system for a tank truck, which can control the conduction or disconnection of a filling valve and avoid the influence brought by a brake cable, so as to improve the safety of filling and discharging of the tank truck or the tank body.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] According to one aspect of the present utility model, the present utility model provides a filling control system for a tanker truck, which includes: a connecting pipeline, one end of which is used to connect a driving gas source, and the other end is used to connect with an emergency cut-off control valve group of the tank body; a first control valve, arranged on the connecting pipeline; a detection device, which is installed on the tanker truck to detect safety signals on the tanker truck; the safety signals include at least one of the speed of the tanker truck and the gas concentration around the tank body; a controller, which is electrically connected to the detection device and is used to receive the safety signals detected by the detection device, and the controller is electrically connected to the first control valve and is used to control the first control valve to shut off according to the safety signals so as to shut off the emergency cut-off control valve group.

[0008] In an embodiment of the present application, a control valve assembly is arranged downstream of the first control valve; the control valve assembly includes a main control valve, a filling control valve, a relief control valve and a gas-phase control valve. The main control valve is communicated with the first control valve, and the filling control valve, the relief control valve and the gas-phase control valve are respectively communicated with the main control valve; the filling control valve is communicated with the filling valve of the emergency cut-off control valve group, the relief control valve is communicated with the relief valve of the emergency cut-off control valve group, and the gas-phase control valve is communicated with the gas-phase valve of the emergency cut-off control valve group.

[0009] In an embodiment of the present application, two groups of the control valve assemblies are arranged downstream of the first control valve. The two groups of control valve assemblies are respectively arranged on the main driver side and the co-driver side of the tanker truck, and both groups of control valve assemblies are connected to the emergency cut-off control valve group.

[0010] In an embodiment of the present application, an air storage tank and an air source valve are further arranged on the connecting pipeline; the air storage tank is used to store the driving gas source; the air storage tank is communicated with the first control valve through the air source valve so that the air source valve can shut off or conduct the pipeline between the air storage tank and the first control valve.

[0011] In an embodiment of the present application, a check valve is further arranged on the connecting pipeline; the inlet end of the check valve is communicated with the driving gas path, and the outlet end of the check valve is communicated with the air storage tank so that the driving gas source flows unidirectionally from the driving gas path into the air storage tank.

[0012] In an embodiment of the present application, a filter is further arranged on the connecting pipeline; the filter is communicated upstream of the first control valve to filter the driving gas source.

[0013] In an embodiment of the present application, a pressure regulator is further arranged on the connecting pipeline; the pressure regulator is communicated upstream of the first control valve to adjust the output air pressure of the connecting pipeline.

[0014] In an embodiment of the present application, the filling control system of the tanker further includes a second control valve; the second control valve is connected between the first control valve and the control valve assembly and is communicatively connected to the console so that the console can remotely control the opening or closing of the second control valve, and when the second control valve is closed, the emergency cut-off control valve group is closed.

[0015] The present application also provides a tanker, which includes a tank body, a vehicle body, and the filling control system of any of the tankers; the tank body is installed on the vehicle body for storing a medium; the emergency cut-off control valve group is connected to the tank body for loading or discharging the medium; the filling control system of the tanker is installed on the vehicle body and is connected to the emergency cut-off control valve group to control the opening or closing of the emergency cut-off control valve group.

[0016] In an embodiment of the present application, the tanker further includes a driving cylinder; the driving cylinder is connected to the output end of the connecting pipeline so that the driving cylinder can expand and contract under the drive of the driving air source; the driving cylinder is installed on the emergency cut-off control valve group, and the output end of the driving cylinder is connected to the push rod of the emergency cut-off control valve group so that the driving cylinder can drive the push rod to rotate and close the emergency cut-off control valve group.

[0017] It can be seen from the above technical solutions that the present utility model has at least the following advantages and positive effects:

[0018] In the present utility model, the filling control system of the tanker includes a connecting pipeline, a first control valve, a detection device, and a controller. Among them, the connecting pipeline is connected between the driving air source and the emergency cut-off control valve group on the tank body so that the driving air source can drive the opening or closing of the emergency cut-off control valve group. At the same time, the first control valve is arranged on the connecting pipeline to control the opening or closing of the connecting pipeline. The detection device is installed on the tanker for detecting safety signals. The controller is electrically connected to the detection device and the first control valve to receive safety signals and control the closing of the first control valve through the safety signals, and when the first control valve is closed, the emergency cut-off control valve group is closed, thereby ensuring the safety of tank filling and discharging.

[0019] At the same time, the filling control system controls the supply of the driving air source, and further controls the opening or closing of the emergency cut-off control valve group, thereby avoiding problems such as the complex routing of the cable of the hand-pulled emergency cut-off control system and the cable being stuck in the middle, and ensuring the timeliness and safety of the control of the emergency cut-off control valve group. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the tanker and the filling control system of the tanker according to the embodiment of the present utility model.

[0021] Figure 2 is Figure 1 a partial schematic view of a tanker truck.

[0022] Figure 3 is Figure 1 a schematic diagram of the principle of a filling control system.

[0023] Figure 4 is Figure 1 a schematic view of the filling valve of the emergency cut-off control valve group of a tanker truck.

[0024] The reference numerals are explained as follows:

[0025] 1 - connecting pipeline; 2 - tank body; 3 - emergency cut-off control valve group; 4 - vehicle body; 11 - first control valve; 12 - control valve assembly; 13 - air storage cylinder; 14 - air source valve; 15 - check valve; 16 - filter; 17 - pressure regulator; 18 - second control valve; 30 - driving cylinder; 32 - filling valve; 33 - relief valve; 34 - gas phase valve; 41 - driver's side; 42 - co-driver's side; 121 - main control valve; 122 - filling control valve; 123 - relief control valve; 124 - gas phase control valve; 301 - push rod; 302 - return spring. Specific Embodiments

[0026] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are for illustrative purposes in nature and not for limiting the present invention.

[0027] In the description of the present invention, it should be understood that in the embodiments shown in the drawings, the indication of the direction or position relationship (such as up, down, left, right, front, and back, etc.) is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. When these elements are in the positions shown in the drawings, these descriptions are appropriate. If the descriptions of the positions of these elements change, then the indication of these directions also changes accordingly.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0029] At present, a hand-pulled emergency cut-off control system is often adopted on tank trucks, which drives a hand-pulled brake cable through a ratchet to be able to emergently cut off the filling valve. Generally, an operation box is arranged on the tank truck, and a handle is arranged in the operation box. Under normal loading and unloading conditions, the handle can control the conduction or disconnection of the filling valve through the brake cable. At the same time, a control handle capable of controlling the filling valve is also configured at the tail of the tank truck, which is connected to the filling valve through a brake cable to control the conduction or disconnection of the filling valve.

[0030] However, the routing of the brake cable of the hand-pulled emergency cut-off control system is complex. If the middle of the brake cable is stuck, it will affect the conduction or disconnection of the filling valve. At the same time, the brake cable is prone to rust or breakage during use, and when the emergency cut-off control system is blocked by sundries, it will cause the emergency cut-off control system to fail to work properly, thereby affecting the conduction or disconnection of the filling valve and the efficiency and safety of the loading and unloading operations of the tank truck.

[0031] Therefore, a filling control system for a tank truck is proposed to solve the above problems.

[0032] Its solution is further illustrated by the following embodiments:

[0033] Figure 1 It is a schematic diagram of a tank truck and a filling control system for a tank truck according to an embodiment of the present invention. Figure 2 is Figure 1 A partial schematic diagram of the tank truck.

[0034] Please refer to Figure 1 and Figure 2 In this embodiment, the tank truck may include a tank body 2, an emergency cut-off control valve group 3, a vehicle body 4, and a filling control system for the tank truck.

[0035] Among them, the tank body 2 is used to store media such as LNG, liquefied petroleum gas, etc. The tank body 2 is installed on the vehicle body 4 so that the tank body 2 can move along with the vehicle body 4, thereby completing the transportation of the medium, etc. The emergency cut-off control valve group 3 is connected to the tank body 2 for loading or discharging the medium. Specifically, the emergency cut-off control valve group 3 may include a plurality of valves to facilitate the filling or discharging of the medium in the tank body 2. The filling control system of the tank truck is installed on the vehicle body 4 and is connected to the emergency cut-off control valve group 3 to control the conduction or cut-off of the emergency cut-off control valve group 3.

[0036] It should be noted that a cab is also arranged at the front of the vehicle body 4 for controlling the driving of the vehicle body 4.

[0037] Figure 3 is Figure 1 A schematic diagram of the principle of the filling control system.

[0038] Refer to Figure 3, the filling control system of the tanker can include a connecting pipeline 1, a first control valve 11, a detection device, and a controller.

[0039] One end of the connecting pipeline 1 is used to connect to a driving gas source, and the other end is used to connect to the emergency cut-off control valve group 3 of the tank body 2, so that the connecting pipeline 1 can guide the flow of the driving gas source and enable the driving gas source to drive the conduction or cut-off of the emergency cut-off control valve group 3.

[0040] It should be noted that the driving gas source can be supplied by the driving gas pipeline on the vehicle body 4 or by a separate gas source storage tank to provide the driving gas source into the connecting pipeline 1, so as to enable the driving gas source to drive the conduction or cut-off of the emergency cut-off control valve group 3.

[0041] In this embodiment, when the connecting pipeline 1 provides a driving gas source to form and apply pressure to the emergency cut-off control valve group 3, the emergency cut-off control valve group 3 conducts. When the passage in the connecting pipeline 1 is cut off, so that the driving gas source cannot apply pressure to the emergency cut-off control valve group 3, the emergency cut-off control valve group 3 cuts off.

[0042] The first control valve 11 is arranged on the connecting pipeline 1 to control the conduction or cut-off of the connecting pipeline 1 by conducting or cutting off the first control valve 11, and further control the conduction or cut-off of the emergency cut-off control valve group 3.

[0043] It should be noted that the first control valve 11 can be set as an electromagnetic valve or a pneumatic valve, so that the first control valve 11 can conduct or cut off the connecting pipeline 1.

[0044] The detection device is installed on the tanker to detect the safety signals on the tanker. The controller is electrically connected to the detection device and is used to receive the safety signals detected by the detection device. At the same time, the controller is electrically connected to the first control valve 11 and is used to control the first control valve 11 to cut off according to the safety signals, so as to cut off the emergency cut-off control valve group 3.

[0045] In this embodiment, the safety signals can include at least one of the speed of the tanker and the gas concentration around the tank body 2, that is, the detection device can include a concentration sensor for detecting the gas concentration and a speed sensor for detecting the driving speed, and the safety signals can include speed signals and concentration signals.

[0046] Specifically, multiple concentration sensors can be provided and respectively arranged on each valve of the emergency cut-off control valve group 3 to detect whether there is medium leakage at the valves. Of course, the concentration sensors can also be arranged on the peripheral side of the tank body 2 to detect whether there is medium leakage on the peripheral side of the tank body 2. When the concentration signal value detected by the concentration sensor exceeds the preset value, the controller controls the first control valve 11 to shut off, and then controls the emergency cut-off control valve group 3 to shut off, so as to stop the filling or discharging of the tank body 2 and ensure the safety of the tank body 2.

[0047] In addition, the speed sensor can be installed on the vehicle body 4 or on the tank body 2 to detect the traveling speeds of the tank body 2 and the vehicle body 4. For example, when the traveling speed is greater than 5 km / h, after the speed sensor transmits the collected speed signal to the controller, the controller controls the first control valve 11 to shut off through this speed signal, and then controls the emergency cut-off control valve group 3 to shut off, so as to stop the filling or discharging of the tank body 2, thereby avoiding the risk of medium leakage caused by accidental movement of the vehicle during the liquid filling and discharging process and ensuring the safety of the tank body 2.

[0048] Refer to Figure 2 and Figure 3 A control valve assembly 12 can be provided downstream of the first control valve 11. Among them, the control valve assembly 12 is connected to the connecting pipeline 1 to control the conduction or cut-off of the connecting pipeline 1.

[0049] Specifically, the control valve assembly 12 includes a main control valve 121, a filling control valve 122, a discharging control valve 123, and a gas-phase control valve 124. The main control valve 121 is connected to the first control valve 11, and the filling control valve 122, the discharging control valve 123, and the gas-phase control valve 124 are respectively connected to the main control valve 121, that is, the filling control valve 122, the discharging control valve 123, and the gas-phase control valve 124 are all located downstream of the main control valve 121.

[0050] In this embodiment, the main control valve 121, the filling control valve 122, the discharging control valve 123, and the gas-phase control valve 124 are all manual control valves, so that the operator can manually open or close the main control valve 121, the filling control valve 122, the discharging control valve 123, and the gas-phase control valve 124.

[0051] In addition, the emergency cut-off control valve group 3 can be provided with a filling valve 32, a discharging valve 33, and a gas-phase valve 34. Among them, the filling valve 32 can be used to fill the tank body 2 with medium, the discharging valve 33 can be used to discharge the medium in the tank body 2, and the gas-phase valve 34 can be used to balance the pressure in the tank body 2.

[0052] In this embodiment, the filling control valve 122 is connected to the filling valve 32, the discharging control valve 123 is connected to the discharging valve 33, and the gas-phase control valve 124 is connected to the gas-phase valve 34.

[0053] Therefore, after opening the main control valve 121 and the charging control valve 122, the charging valve 32 can be turned on by the driving gas source in the connecting pipeline 1; after opening the main control valve 121 and the discharge control valve 123, the discharge valve 33 can be turned on by the driving gas source in the connecting pipeline 1; after opening the main control valve 121 and the gas phase control valve 124, the gas phase valve 34 can be turned on by the driving gas source in the connecting pipeline 1.

[0054] Similarly, when at least one of the main control valve 121 and the filling control valve 122 is shut off, the filling valve 32 is shut off due to the lack of driving air source for the filling valve 32; when at least one of the main control valve 121 and the discharge control valve 123 is shut off, the discharge valve 33 is shut off due to the lack of driving air source for the discharge valve 33; when at least one of the main control valve 121 and the gas phase control valve 124 is shut off, the gas phase valve 34 is shut off due to the lack of driving air source for the gas phase valve 34.

[0055] In this embodiment, two control valve assemblies 12 may be provided downstream of the first control valve 11, and both control valve assemblies 12 are connected to the emergency shutoff control valve group 3. That is, the charging control valve 122, the discharge control valve 123, and the gas phase control valve 124 in the two control valve assemblies 12 are respectively connected to the charging valve 32, the discharge valve 33, and the gas phase valve 34, so that both control valve assemblies 12 can control the conduction or shutoff of the emergency shutoff control valve group 3. Specifically, in the two control valve assemblies 12, the two charging control valves 122 are connected to the same charging valve 32 via a shuttle valve, the two discharge control valves 123 are connected to the same discharge valve 33 via a shuttle valve, and the two gas phase control valves 124 are connected to the same gas phase valve 34 via a shuttle valve.

[0056] Specifically, two sets of control valve assemblies 12 are respectively arranged on the main driver's side 41 and the co-driver's side 42 of the tank truck, so that when the loading and unloading objects are located on different sides of the vehicle body, the operator can operate the control valve assembly 12 on the corresponding vehicle body side, thereby facilitating loading and unloading control, realizing operation on both sides, and improving work efficiency.

[0057] See Figure 1 and Figure 3 The connecting pipeline 1 may also be provided with an air storage cylinder 13 and an air source valve 14.

[0058] The air reservoir 13 can be used to store a driving air source, which serves as a power source for the connecting pipeline 1. The air reservoir 13 is connected to the first control valve 11 via an air source valve 14, so that the air source valve 14 can close or open the pipeline between the air reservoir 13 and the first control valve 11. Furthermore, when the air source valve 14 is closed, the driving air source in the air reservoir 13 can be prevented from leaking out.

[0059] In this embodiment, the air source valve 14 can be set as an electromagnetic valve, or can be set as a pneumatic valve or a manual valve.

[0060] It should be noted that the air storage tank 13 can be connected to the driving air circuit on the vehicle body 4, so that the driving air source is transferred from the driving air circuit to the air storage tank 13 and remains in the air storage tank 13. Of course, in some other embodiments, the air storage tank 13 can also be set as a storage tank with a driving air source to provide a driving air source for the connecting pipeline 1.

[0061] Refer to Figure 1 and Figure 3 The connecting pipeline 1 can also be provided with a check valve 15. Wherein, the inlet end of the check valve 15 is connected to the driving air circuit, and the outlet end of the check valve 15 is connected to the air storage tank 13, so that the driving air source flows unidirectionally from the driving air circuit into the air storage tank 13, avoiding the driving air source in the air storage tank 13 from flowing back into the driving air circuit when the air source valve 14 is closed.

[0062] In this embodiment, after the driving air source in the driving air circuit on the vehicle body 4 flows into the air storage tank 13 through the check valve 15, it can remain in the air storage tank 13 to serve as a power source for driving the emergency cut-off control valve group 3 to conduct in the connecting pipeline 1. At the same time, when the driving air circuit of the vehicle body 4 is cut off, there is sufficient driving air source and gas pressure in the air storage tank 13 to drive the conduction of the emergency cut-off control valve group 3, ensuring the smooth progress of the filling or discharging work of the tank body 2.

[0063] Refer to Figure 1 and Figure 3 The connecting pipeline 1 can also be provided with a filter 16 and a pressure regulator 17. The filter 16 and the pressure regulator 17 are connected in sequence and are connected upstream of the first control valve 11. Specifically, the filter 16 and the pressure regulator 17 are connected between the air source valve 14 and the first control valve 11.

[0064] In this embodiment, the filter 16 can be used to filter the driving air source to remove impurities in the driving air source, ensure the cleanliness of the gas in the downstream connecting pipeline 1, and improve the service life of the downstream valves and other devices. The pressure regulator 17 can be used to adjust the output air pressure of the connecting pipeline 1 so that the output air pressure of the connecting pipeline 1 remains stable.

[0065] Refer to Figure 1 、 Figure 2 and Figure 3 The filling control system can also include a second control valve 18. Wherein, the second control valve 18 is connected between the first control valve 11 and the control valve assembly 12 and is communicatively connected to the console, so that the console can remotely control the conduction or cut-off of the second control valve 18, and when the second control valve 18 is cut off, the connecting pipeline 1 is cut off, and further the emergency cut-off control valve group 3 is cut off.

[0066] In this embodiment, the second control valve 18 can be set as a solenoid valve, and the second control valve 18 can be communicatively connected to the control console so that after the second control valve 18 receives the shutdown signal, the second control valve 18 automatically shuts off, thereby realizing the function of remotely closing the emergency cut-off control valve group 3, so that in an emergency and when it is impossible to approach the tank body 2 or the vehicle body 4, the second control valve 18 can be remotely controlled to shut off, thereby shutting off the emergency cut-off control valve group 3.

[0067] Figure 4 yes Figure 1 Schematic diagram of the filling valve of the emergency shut-off control valve group of the tank truck.

[0068] See Figure 4 The tank truck may further include a driving cylinder 30. The driving cylinder 30 is connected to the output end of the connecting pipeline 1 so that the driving cylinder 30 can be extended and retracted under the drive of the driving gas source.

[0069] In this embodiment, the driving cylinder 30 is installed on the emergency shut-off control valve group 3, and the output end of the driving cylinder 30 is connected to the push rod 301 of the emergency shut-off control valve group 3, so that the driving cylinder 30 can drive the push rod 301 to rotate and close the emergency shut-off control valve group 3.

[0070] It should be noted that the driving cylinder 30 is installed one by one on the filling valve 32, the discharge valve 33 and the gas phase valve 34, so that the driving cylinder 30 can drive the push rod 301 of the filling valve 32, the discharge valve 33 and the gas phase valve 34, and then control the closing of the filling valve 32, the discharge valve 33 and the gas phase valve 34.

[0071] See Figure 4 The filling valve 32, the discharge valve 33, and the gas phase valve 34 can be configured as valves of the same structure. Furthermore, each of the filling valve 32, the discharge valve 33, and the gas phase valve 34 is provided with a return spring 302, which can drive the push rod 301 to rotate, thereby keeping the filling valve 32, the discharge valve 33, and the gas phase valve 34 in a closed state.

[0072] It should be noted that since the filling valve 32, the discharge valve 33 and the gas phase valve 34 remain closed under the drive of the reset spring 302, when the driving air source in the connecting pipeline 1 drives the driving cylinder 30 to extend, it can offset the elastic force of the reset spring 302 and drive the push rod 301 to rotate, so that the filling valve 32, the discharge valve 33 or the gas phase valve 34 are turned on, thereby enabling the tank body 2 to be filled or discharged.

[0073] In addition, in this embodiment, in the normal state, the first control valve 11, the air source valve 14, and the second control valve 18 are all kept in the conducting state to make the connecting pipeline 1 conducting. At the same time, when the first control valve 11 or the second control valve 18 is turned off, the connecting pipeline 1 can be turned off, so that the driving air source of the driving cylinder 30 is lost, and then the return spring 302 drives the emergency cut-off control valve group 3 to be turned off, thereby ensuring the installation of the tank body 2.

[0074] To sum up, after the operator controls the control valve assembly 12 to conduct, the driving air source in the connecting pipeline 1 can drive the driving cylinder 30 to extend, and then drive the emergency cut-off control valve group 3 to conduct, so that the tank body 2 can be filled or discharged. When the controller controls the first control valve 11 to be turned off according to the safety signal or remotely controls the second control valve 18 to be turned off, the connecting pipeline 1 is turned off, and then the driving cylinder 30 contracts, and the emergency cut-off control valve group 3 returns to the off state under the drive of the return spring 302, realizing the timeliness and safety of the control of the emergency cut-off control valve group 3, thereby ensuring the safety of the tank body 2.

[0075] The present application also discloses a tank truck filling control method, wherein the tank truck filling control method is applicable to the filling control system of the above-mentioned tank truck.

[0076] Specifically, the control method includes:

[0077] S1. Provide a driving air source to the emergency cut-off control valve group 3 through the connecting pipeline 1 to conduct the emergency cut-off control valve group 3. Specifically, open the main control valve 121 in the control valve assembly 12 and at least one of the filling control valve 122, the discharge control valve 123, or the gas phase control valve 124, so that the connecting pipeline 1 can communicate with the emergency cut-off control valve group 3, and the emergency cut-off control valve group 3 can be conducted.

[0078] S2. The detection device detects the safety signal on the tank truck. The safety signal includes at least one of the speed of the tank truck and the gas concentration around the tank body 2, so as to feed back the signal to the controller in time when an emergency occurs to the tank body 2 and the vehicle body 4.

[0079] S3. The controller receives the safety signal detected by the detection device and controls the first control valve 11 to close according to the safety signal, and then closes the emergency cut-off control valve group 3, thereby ensuring the safety of the filling or discharging of the tank body 2.

[0080] Therefore, the filling or discharging of the tank truck can be controlled by the control method, and the safety during the filling or discharging process can be ensured.

[0081] While the present utility model has been described with reference to several exemplary embodiments, it should be understood that the terms used are descriptive and exemplary rather than restrictive. Since the present utility model can be embodied in many forms without departing from the spirit or essence of the utility model, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A filling control system for a tanker truck, characterized in that Comprising: A connecting pipeline, one end of which is used to connect to a driving gas source, and the other end is used to connect to an emergency cut-off control valve group of the tank body; A first control valve, arranged on the connecting pipeline; A detection device, installed on the tanker for detecting safety signals on the tanker; the safety signals include at least one of the speed of the tanker and the gas concentration around the tank body; A controller, electrically connected to the detection device for receiving the safety signals detected by the detection device, and the controller is electrically connected to the first control valve for controlling the first control valve to shut off according to the safety signals so as to shut off the emergency cut-off control valve group.

2. The filling control system of the tanker according to claim 1, wherein A control valve assembly is arranged downstream of the first control valve; the control valve assembly includes a main control valve, a filling control valve, a discharge control valve and a gas phase control valve. The main control valve is communicated with the first control valve, and the filling control valve, the discharge control valve and the gas phase control valve are respectively communicated with the main control valve; the filling control valve is communicated with the filling valve of the emergency cut-off control valve group, the discharge control valve is communicated with the discharge valve of the emergency cut-off control valve group, and the gas phase control valve is communicated with the gas phase valve of the emergency cut-off control valve group.

3. The filling control system of the tanker according to claim 2, characterized in that There are two groups of the control valve assemblies arranged downstream of the first control valve, and the two groups of control valve assemblies are respectively arranged on the main driver side and the co-driver side of the tanker, and both groups of control valve assemblies are connected to the emergency cut-off control valve group.

4. The filling control system of the tanker according to claim 1, characterized in that, The connecting pipeline is also provided with an air storage tank and an air source valve; the air storage tank is used to store the driving gas source; the air storage tank is communicated with the first control valve through the air source valve so that the air source valve can shut off or conduct the pipeline between the air storage tank and the first control valve.

5. The filling control system of the tanker according to claim 4, wherein, The connecting pipeline is also provided with a check valve; the inlet end of the check valve is communicated with the driving gas path, and the outlet end of the check valve is communicated with the air storage tank so that the driving gas source flows unidirectionally into the air storage tank from the driving gas path.

6. The filling control system of the tanker according to claim 1, characterized in that The connecting pipeline is also provided with a filter; the filter is communicated upstream of the first control valve for filtering the driving gas source.

7. The filling control system of the tanker according to claim 1, wherein The connecting pipeline is also provided with a pressure regulator; the pressure regulator is communicated upstream of the first control valve for adjusting the output air pressure of the connecting pipeline.

8. The filling control system of the tanker according to claim 2, characterized in that, It also includes a second control valve; the second control valve is communicated between the first control valve and the control valve assembly and is communicatively connected to a control console so that the control console can remotely control the conduction or shut-off of the second control valve, and when the second control valve is shut off, the emergency cut-off control valve group is shut off.

9. A tanker truck, characterized in that, The tanker includes a tank body, a vehicle body, and a filling control system of the tanker according to any one of claims 1-8; the tank body is installed on the vehicle body for storing a medium; the emergency cut-off control valve group is communicated with the tank body for loading or discharging the medium; the filling control system of the tanker is installed on the vehicle body and is communicated with the emergency cut-off control valve group to control the conduction or shut-off of the emergency cut-off control valve group.

10. The tanker truck according to claim 9, characterized in that, It further includes a driving cylinder; the driving cylinder is connected to the output end of the connecting pipeline so that the driving cylinder can expand and contract under the drive of the driving air source; the driving cylinder is installed on the emergency cut-off control valve group, and the output end of the driving cylinder is connected to the push rod of the emergency cut-off control valve group so that the driving cylinder can drive the push rod to rotate and cut off the emergency cut-off control valve group.

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