Remote real-time control system and control method for liquid helium tank container

Abstract

The invention provides a remote real-time control system and a remote real-time control method for a liquid helium tank box. The remote real-time control system comprises the following steps: acquiring thermal object parameters in a liquid helium container (101) through a sensor module (2); the signal transmission module (3) transmits the thermophysical parameters to the data receiving module (4); the data receiving module (4) transmits the thermophysical parameters to the analysis processing module (5) for processing; and the analysis processing module (5) is used for obtaining the change relation between the internal pressure and the temperature along with time according to the thermophysical parameters so as to obtain the liquid helium pressure increasing rule, and the predicted remaining time for increasing the pressure of the liquid helium inner container (101) to the take-off pressure of a safety valve is obtained. According to the liquid helium tank, data of the liquid helium inner container can be collected in real time by an operator during storage and transportation of the liquid helium tank, real-time monitoring is ensured, analysis of the maintainable time of the internal state is completed, and potential safety hazards caused by the fact that the internal pressurization condition cannot be known in time in the storage and transportation process of the liquid helium tank are avoided.

Description

Technical Field

[0001] The present application relates to the field of liquid helium technology preparation, and in particular to a liquid helium tank container remote real-time control system and control method. Background Art

[0003] During the storage and transportation of liquid helium, liquid helium tanks may face the situation of liquid helium evaporation and increased pressure inside the container. Since liquid helium has the characteristics of low latent heat, good thermal conductivity and strong diffusivity, timely collection of internal data of liquid helium tanks and monitoring of corresponding conditions are important ways to ensure safety during transportation. After evaporation, the internal pressure of liquid helium increases. When the pressure exceeds the tripping pressure of the safety valve, it will cause the discharge and loss of low-temperature helium, bring unnecessary economic losses and may cause dangerous situations such as frostbite. Existing liquid helium tanks often use mechanical pressure gauges to measure the internal liquid helium level and pressure. It is difficult to ensure that the internal pressure is always lower than the tripping pressure through the above method. On the other hand, since there is a cold shield container inside the liquid helium tank, helium is needed to achieve the internal cold shield insulation effect. After the liquid helium evaporates, low-temperature helium is generated to cool the cold shield and then discharged. If the liquid helium evaporates completely, the insulation performance inside the liquid helium tank will be greatly reduced, which will increase the temperature rise of the liquid helium container. The existing liquid helium tanks often use mechanical pressure gauges and liquid level gauges to measure the liquid level in the liquid helium container. The measurement data cannot be transmitted in real time, and there may be a situation where the internal pressure and liquid level changes cannot be obtained in time.

[0004] Specifically, the existing commonly used method of measuring the pressure of the liquid helium container in the liquid helium tank is to lead a measuring pipe from the top of the container, pass through the outer shell and connect a mechanical pressure gauge on the outside, and the pressure reading is the gauge pressure of the container. The liquid level is often measured by differential pressure, with a measuring pipe leading from the top and bottom of the container respectively, passing through the outer shell and connecting the two ends of the differential pressure gauge on the outside, and the differential pressure indicates the internal liquid level.

[0005] The commonly used measuring equipment for existing liquid helium tanks cannot meet the requirements of operators for real-time monitoring of liquid helium during long-term storage and transportation and storage, and cannot timely and effectively complete the analysis of the liquid helium container inside the liquid helium tank through measurement data, and perform timely pressure increase or pressure reduction operations. At the same time, during transportation, the location of the liquid helium tank cannot be obtained in real time. All of the above may cause safety hazards during the storage and transportation of liquid helium tanks due to the inability to timely understand the internal pressurization situation. Summary of the invention

[0006] In view of this, it is necessary to provide a remote real-time control system and control method for the liquid helium tank container, which can realize data collection of the liquid helium container by the operator during the storage and transportation of the liquid helium tank container, ensure real-time monitoring and complete the analysis of the time that the internal state can be maintained, in order to address the technical defects of the prior art that the internal pressurization status of the liquid helium tank container cannot be timely understood during the storage and transportation process, which may lead to safety hazards.

[0007] To solve the above problems, this application adopts the following technical solutions:

[0008] One of the purposes of the present application is to provide a remote real-time control system for a liquid helium tank, the liquid helium tank comprising a liquid helium container (101) arranged inside, characterized in that the control system comprises a sensor module (2) electrically connected to the liquid helium container (101), a signal transmission module (3) electrically connected to the sensor module (2), a data receiving module (4) electrically connected to the signal transmission module (3), and an analysis and processing module (5) electrically connected to the data receiving module (4), wherein:

[0009] The sensor module (2) is used to obtain thermal parameters inside the liquid helium container (101); the signal transmission module (3) transmits the thermal parameters to the data receiving module (4); the data receiving module (4) transmits the thermal parameters to the analysis and processing module (5) for processing; the analysis and processing module (5) is used to obtain the relationship between the internal pressure and the temperature changing with time according to the thermal parameters to obtain the liquid helium pressure increase law, and obtain the estimated remaining time for the pressure of the liquid helium container (101) to increase to the safety valve trip pressure, wherein the thermal parameters include temperature, pressure and position.

[0010] In some embodiments, the sensor module (2) comprises a temperature sensor (201), a pressure sensor (202) and a position sensor (203); the temperature sensor (201) is used to measure the temperature of the liquid helium in the liquid helium container (101); the pressure sensor (202) is used to measure the pressure in the liquid helium container (101); and the position sensor (203) is used to provide real-time feedback on the position of the liquid helium tank via a GPS or BeiDou system.

[0011] In some of the embodiments, the control system further comprises a battery module (6), and the battery module (6) is used to supply power to the sensor module (2) and the signal transmission module (3).

[0012] In some of the embodiments, the control system further comprises a display module (7), wherein the display module (7) is electrically connected to the analysis and processing module (5), and the display module (7) is used to display the data processed by the analysis and processing module (5) to realize visualization of digital parameters.

[0013] In some of the embodiments, the control system further comprises a feedback warning module (8), wherein the feedback warning module (8) is used to receive relevant data from the analysis and processing module (5) and to provide prompts to the operator in the form of signal feedback.

[0014] In some of the embodiments, the control system further comprises an operation execution module (9), wherein the operation execution module (9) is used to receive relevant data from the feedback warning module (8) and transmit the driving power source through an internal execution structure.

[0015] In some embodiments, the control system further comprises a voltage reduction module (10) and a voltage increase module (11), wherein:

[0016] The depressurization module (10) is used to receive the drive of the operation execution module (9), and complete the opening and closing of the depressurization flow channel through the internal flow channel switch device to achieve the depressurization of the liquid helium container inside the liquid helium tank box;

[0017] The boost module (11) is used to receive the drive of the operation execution module (9), and complete the opening and closing of the boost module through the internal flow channel switch device, thereby achieving the boosting of the liquid helium container inside the liquid helium tank.

[0018] The second object of the present application is to provide a control method for the remote real-time control system of the liquid helium tank, comprising the following steps:

[0019] The sensor module (2) acquires thermal parameters inside the liquid helium container (101);

[0020] The signal transmission module (3) transmits the thermal object parameter to the data receiving module (4);

[0021] The data receiving module (4) transmits the thermal material parameters to the analysis and processing module (5) for processing;

[0022] The analysis and processing module (5) is used to obtain the relationship between the internal pressure and the temperature over time according to the thermal material parameters to obtain the liquid helium pressure increase law, and obtain the estimated remaining time for the pressure of the liquid helium container (101) to increase to the safety valve trip pressure.

[0023] This application adopts the above technical solution, and its beneficial effects are as follows:

[0024] The present application provides a remote real-time control system and control method for a liquid helium tank container. The sensor module (2) obtains the thermal parameters of the liquid helium container (101). The signal transmission module (3) transmits the thermal parameters to the data receiving module (4). The data receiving module (4) transmits the thermal parameters to the analysis and processing module (5) for processing. The analysis and processing module (5) is used to obtain the relationship between the internal pressure and the temperature over time according to the thermal parameters to obtain the liquid helium pressure increase law and obtain the estimated remaining time for the pressure of the liquid helium container (101) to increase to the safety valve trip pressure. The control system and control method provided by the present application can realize the real-time data collection of the liquid helium container by the operator during the storage and transportation of the liquid helium tank container, ensure real-time monitoring and complete the analysis of the internal state maintainable time, avoid the potential safety hazards caused by the inability to timely understand the internal pressurization situation during the storage and transportation of the liquid helium tank container, and improve the safety and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the structure of a remote real-time control system for a liquid helium tank provided in Example 1 of the present application;

[0027] Figure 2 This is a flowchart of the steps of the remote real-time control method of the liquid helium tank provided in Example 2 of the present application. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] Example 1

[0033] See also Figure 1 , is a schematic diagram of the structure of the remote real-time control system of the liquid helium tank provided in Example 1 of the present application, wherein the liquid helium tank 1 includes a liquid helium container (101) arranged inside, and the control system includes a sensor module (2), a signal transmission module (3), a data receiving module (4) and an analysis and processing module (5). The connection relationship of each component and its implementation method are described in detail below.

[0034] The sensor module (2) is arranged on the liquid helium tank and is connected to the liquid helium container (101). The sensor module (2) is used to collect and obtain thermal parameters of the liquid helium container (101). The thermal parameters include temperature, pressure and position.

[0035] In some embodiments, the sensor module (2) comprises a temperature sensor (201), a pressure sensor (202) and a position sensor (203); the temperature sensor (201) is used to measure the temperature of the liquid helium in the liquid helium container (101); the pressure sensor (202) is used to measure the pressure in the liquid helium container (101); and the position sensor (203) is used to provide real-time feedback on the position of the liquid helium tank via a GPS or BeiDou system.

[0036] The signal transmission module (3) is electrically connected to the sensor module (2). The signal transmission module (3) is used to transmit the data signal collected by the sensor module (2) to the outside world through a wireless network, and can realize the function of remote data transmission. The data source is the real-time collection of the sensor module (2).

[0037] The data receiving module (4) is electrically connected to the signal transmission module (3). The data receiving module (4) can receive data transmitted from the signal transmission module (3). The data receiving module (4) can be arranged at a remote end and can receive data transmitted via a wireless network.

[0038] The analysis and processing module (5) is electrically connected to the data receiving module (4). The analysis and processing module (5) can complete the work of processing the received data, wherein a built-in analysis and processing model is built in, through which data calculation can be effectively realized, the relationship between the internal pressure and the temperature changing with time can be obtained, the liquid helium pressure increase law can be obtained, and the estimated remaining time for the pressure of the liquid helium container to increase to the safety valve tripping pressure can be obtained.

[0039] The remote real-time control system for the liquid helium tank provided in the above embodiment of the present application works as follows:

[0040] The sensor module (2) is used to obtain thermal parameters inside the liquid helium container (101); the signal transmission module (3) transmits the thermal parameters to the data receiving module (4); the data receiving module (4) transmits the thermal parameters to the analysis and processing module (5) for processing; the analysis and processing module (5) is used to obtain the relationship between the internal pressure and the temperature changing with time according to the thermal parameters to obtain the liquid helium pressure increase law, and obtain the estimated remaining time for the pressure of the liquid helium container (101) to increase to the safety valve tripping pressure.

[0041] It can be understood that the analysis and processing module (5) can analyze the internal liquid level data and the internal pressure data to determine whether the liquid helium is about to evaporate completely and whether the pressure in the liquid helium container is about to rise to the tripping pressure of the safety valve, so as to ensure timely pressure relief of the liquid helium container. In addition, the internal calculation model of the analysis and processing module (5) can be used to derive some calculation values ​​useful for the use of the liquid helium tank, including the estimated remaining maintenance time of the pressure in the liquid helium container.

[0042] In this embodiment, the control system further comprises a battery module (6), and the battery module (6) is used to supply power to the sensor module (2) and the signal transmission module (3), so as to ensure the energy supply required by the sensor module (2) and the signal transmission module (3) during use, thereby ensuring the normal operation of both. The battery generally used is a lithium battery.

[0043] In this embodiment, the control system further comprises a display module (7), wherein the display module (7) is electrically connected to the analysis and processing module (5), and the display module (7) is used to display the data processed by the analysis and processing module (5) to realize visualization of digital parameters.

[0044] In this embodiment, the control system further comprises a feedback warning module (8), wherein the feedback warning module (8) is used to receive relevant data from the analysis and processing module (5) and to provide prompts to the operator in the form of signal feedback.

[0045] It can be understood that when the liquid helium in the liquid helium container (101) inside the liquid helium tank box is about to run out, the feedback warning module (8) sends a warning signal to remind the operator to replenish the liquid helium container in time to ensure that the internal container is filled with liquid helium at any time to avoid the liquid helium container (101) from heating up too quickly. When the internal pressure of the liquid helium container (101) rises too quickly, or the internal pressure is about to exceed the safety valve trip pressure, the feedback warning module (8) sends a warning signal to remind the operator to pay attention to the pressure change of the liquid helium container (101) in time and take measures to avoid danger.

[0046] In this embodiment, the control system further comprises an operation execution module (9), wherein the operation execution module (9) is used to receive relevant data from the feedback warning module (8) and transmit the driving power source through an internal execution structure.

[0047] Specifically, the operation execution module (9) can receive remote transmission signals and has its own driving power supply. It can execute different operations according to the feedback signal conditions. It has an internal embedded analysis algorithm and a corresponding module to remotely and autonomously complete the next step of step-up and step-down operation analysis.

[0048] In this embodiment, the control system further comprises a pressure reduction module (10) and a pressure increase module (11), wherein: the pressure reduction module (10) is used to accept the drive of the operation execution module (9), and complete the opening and closing of the pressure reduction flow channel through the internal flow channel switch device to achieve the pressure reduction of the liquid helium container inside the liquid helium tank box; the pressure increase module (11) is used to accept the drive of the operation execution module (9), and complete the opening and closing of the pressure increase module through the internal flow channel switch device to achieve the pressure increase of the liquid helium container inside the liquid helium tank box.

[0049] It can be understood that the operation execution module (9) drives the pressure reduction execution module (10) and the pressure increase execution module (11) through power, and the pressure reduction execution module (10) and the pressure increase execution module (11) perform corresponding operations under the action of the operation execution module 9, and can complete the opening and closing of the pressure reduction flow channel and the pressure increase flow channel, so as to realize the pressure reduction and pressure increase of the liquid helium container 101 inside the liquid helium tank container equipment. This process can timely complete the pressure reduction or pressure increase inside the tank container, improve the safety of the tank container during use, and avoid excessive or low pressure.

[0050] The control system provided in the above-mentioned embodiment 1 of the present application can realize real-time data collection of the liquid helium container by the operator during the storage and transportation of the liquid helium tank container, ensure real-time monitoring and complete the analysis of the internal state maintainable time, avoid the potential safety hazards caused by the inability to timely understand the internal pressurization situation during the storage and transportation of the liquid helium tank container, and improve the safety and reliability of the system.

[0051] Example 2

[0052] See also Figure 2 , which is the control method of the liquid helium tank remote real-time control system provided in Example 2 of the present application, comprising the following steps:

[0053] Step S110: the sensor module (2) acquires thermal parameters inside the liquid helium container (101);

[0054] Step S120: the signal transmission module (3) transmits the thermal object parameter to the data receiving module (4);

[0055] Step S130: the data receiving module (4) transmits the thermal object parameter to the analysis and processing module (5) for processing;

[0056] Step S140: the analysis and processing module (5) is used to obtain the relationship between the internal pressure and the temperature over time according to the thermal material parameters to obtain the liquid helium pressure increase law, and obtain the estimated remaining time for the pressure of the liquid helium container (101) to increase to the safety valve trip pressure.

[0057] The detailed implementation of the control method provided in Example 2 of the present application can be referred to Example 1 and will not be repeated here.

[0058] The control method provided in the above-mentioned embodiment 2 of the present application can realize the real-time data collection of the liquid helium container by the operator during the storage and transportation of the liquid helium tank container, ensure real-time monitoring and complete the analysis of the internal state maintainable time, avoid the potential safety hazards caused by the inability to timely understand the internal pressurization situation during the storage and transportation of the liquid helium tank container, and improve the safety and reliability of the system.

[0059] It can be understood that the technical features of the above-described embodiments can be arbitrarily combined. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above are only preferred embodiments of the present application, and only specifically describe the technical principles of the present application. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application, and other specific implementation methods of the present application that can be associated with the technicians in this field without creative work, should be included in the scope of protection of the present application.

Claims

1. A remote real-time control system for a liquid helium tank, the liquid helium tank comprising a liquid helium container (101) arranged inside, characterized in that: The control system comprises a sensor module (2) electrically connected to the liquid helium container (101), a signal transmission module (3) electrically connected to the sensor module (2), a data receiving module (4) electrically connected to the signal transmission module (3), and an analysis and processing module (5) electrically connected to the data receiving module (4), wherein: The sensor module (2) is used to obtain thermal parameters inside the liquid helium container (101); the signal transmission module (3) transmits the thermal parameters to the data receiving module (4); the data receiving module (4) transmits the thermal parameters to the analysis and processing module (5) for processing; the analysis and processing module (5) is used to obtain the relationship between the internal pressure and the temperature changing with time according to the thermal parameters to obtain the liquid helium pressure increase law, and obtain the estimated remaining time for the pressure of the liquid helium container (101) to increase to the safety valve trip pressure, wherein the thermal parameters include temperature, pressure and position.

2. The remote real-time control system for liquid helium tanks according to claim 1, characterized in that: The sensor module (2) comprises a temperature sensor (201), a pressure sensor (202) and a position sensor (203); the temperature sensor (201) is used to measure the temperature of the liquid helium in the liquid helium inner container (101); the pressure sensor (202) is used to measure the pressure in the liquid helium inner container (101); and the position sensor (203) is used to provide feedback on the position of the liquid helium tank in real time through a GPS or Beidou system.

3. The remote real-time control system for liquid helium tank container according to claim 1 or 2, characterized in that: The control system further comprises a battery module (6), and the battery module (6) is used to supply power to the sensor module (2) and the signal transmission module (3).

4. The remote real-time control system for liquid helium tanks according to claim 1, characterized in that: The control system further comprises a display module (7), wherein the display module (7) is electrically connected to the analysis and processing module (5), and the display module (7) is used to display the data processed by the analysis and processing module (5) to realize digital parameter visualization.

5. The remote real-time control system for liquid helium tank container according to claim 1, characterized in that: The control system further comprises a feedback warning module (8), which is used to receive relevant data from the analysis and processing module (5) and to provide prompts to the operator in the form of signal feedback.

6. The remote real-time control system for liquid helium tanks according to claim 5, characterized in that: The control system further comprises an operation execution module (9), wherein the operation execution module (9) is used to receive relevant data from the feedback warning module (8) and transmit a driving power source through an internal execution structure.

7. The remote real-time control system for liquid helium tanks according to claim 6, characterized in that: The control system further comprises a voltage reduction module (10) and a voltage increase module (11), wherein: The depressurization module (10) is used to receive the drive of the operation execution module (9), and complete the opening and closing of the depressurization flow channel through the internal flow channel switch device to achieve the depressurization of the liquid helium container inside the liquid helium tank box; The boost module (11) is used to receive the drive of the operation execution module (9), and complete the opening and closing of the boost module through the internal flow channel switch device, thereby achieving the boosting of the liquid helium container inside the liquid helium tank.

8. A control method for a remote real-time control system of a liquid helium tank container as claimed in claim 1, characterized in that: The steps include: The sensor module (2) acquires thermal parameters inside the liquid helium container (101); The signal transmission module (3) transmits the thermal object parameter to the data receiving module (4); The data receiving module (4) transmits the thermal material parameters to the analysis and processing module (5) for processing; The analysis and processing module (5) is used to obtain the relationship between the internal pressure and the temperature over time according to the thermal material parameters to obtain the liquid helium pressure increase law, and obtain the estimated remaining time for the pressure of the liquid helium container (101) to increase to the safety valve trip pressure.

Images