An external system for a mobile energy storage tank car

Abstract

This utility model discloses an external system for a mobile energy storage tanker. The tanker is equipped with an inflation port and an air supply port. The inflation port connects to the plant's air intake pipe, which is equipped with an air intake check valve, a manual ball valve, and an electric ball valve. The air supply port connects to the plant's air supply pipe, which is equipped with a manual ball valve, an electric ball valve, and an electric regulating valve. The system includes a controller connected to the electric ball valve and the electric regulating valve via signal lines. The controller is also connected to a local control device and a remote control device. The advantages of this utility model are that electronic monitoring allows for simultaneous on-site and remote monitoring and control, facilitating operation by staff. Furthermore, the added pressure monitoring mechanism can both assist in automatic control alarms and help staff reliably obtain real-time pressure data within the tank.

Description

Technical Field

[0001] This utility model relates to the field of gas storage technology. Background Technology

[0002] With the continuous rise in natural gas prices, the difficulty in obtaining steam supply has become a common problem for steam-consuming enterprises. Some enterprises have proposed new solutions to address this situation, including building new biomass boilers and cooperating with power plants that produce steam. Utilizing mobile energy storage tank trucks allows surplus high-temperature steam from upstream power plants to be transported downstream to heat users, meeting their continuous steam supply needs. This solves the problems of long construction cycles, high costs, and short coverage radius in heating pipeline networks.

[0003] For example, the published document with publication number CN222011650U, publication date November 15, 2024, and patent title "A Mobile Energy Storage Tank Truck" discloses a mobile energy storage tank truck, which includes a transport frame, frames at both ends of the transport frame, a tank body on the transport frame, the tank body connected to the frames at both ends, a steam filling pipe and a steam venting pipe connected to one end of the tank body, a sewage pipe connected to the bottom of the tank body, and a heater inside the tank body.

[0004] However, similar mobile energy storage tank trucks require a pipeline system that can easily control the inflation and deflation of gas to ensure safety and convenience during use. Currently, the external systems of mobile energy storage tank trucks require on-site monitoring and regular inspections during inflation and deflation, which is very inconvenient to use. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to realize a charging and discharging pipeline control system that standardizes the operation process, reduces misoperation in the production process, and improves the ease of use of energy storage tank trucks.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an external connection system for a mobile energy storage tanker, wherein the tank body of the energy storage tanker is provided with an inflation interface and an air supply interface. The inflation interface is used to connect to the air intake pipe of the plant area. The air intake pipe is provided with an air intake check valve, an air intake manual ball valve, and an air intake electric ball valve. The air supply interface is used to connect to the air supply pipe of the plant area. The air supply interface is provided with an air supply manual ball valve, an air supply electric ball valve, and an air supply electric regulating valve. The system is provided with a controller. The controller is connected to the air intake electric ball valve and the air supply electric regulating valve through a signal line. The controller is connected to a near-end control device and a remote operation device.

[0007] The energy storage tank truck is equipped with an electric barometer, which is connected to a communication device via a data cable. The controller communicates with the communication device to obtain the pressure signal and connects to and outputs the tank pressure data to a pressure value display.

[0008] The energy storage tank truck is equipped with two electric barometers, and two pressure value displays are provided, each independently displaying the pressure data of the two electric barometers. The two electric barometers are located at the front and rear of the energy storage tank truck, respectively.

[0009] The controller is connected to an alarm.

[0010] The energy storage tanker is equipped with at least one thermocouple thermometer, which is connected to a communication device via a wiring harness.

[0011] The energy storage tank truck is equipped with a liquid level gauge gas phase pipe at the top and a liquid level gauge liquid phase pipe at the bottom. The liquid level gauge gas phase pipe is equipped with a liquid level gauge gas phase valve, and the liquid level gauge liquid phase pipe is equipped with a liquid level gauge liquid phase valve. A magnetic float flow meter is connected between the liquid level gauge gas phase valve and the liquid level gauge liquid phase valve.

[0012] The bottom of the energy storage tanker is equipped with a drain outlet, which is fitted with a drain stop valve and a manual ball valve for the drain pipe.

[0013] The energy storage tank truck is equipped with a safety valve, which is connected to a full-opening safety valve outside the energy storage tank truck via a pipeline. A manual ball valve for unblocking pipelines and an electric regulating valve for unblocking pipelines are connected in parallel across the full-opening safety valve via pipelines.

[0014] The advantage of this invention is that through electronic monitoring, it can simultaneously meet the needs of on-site monitoring and control as well as remote monitoring and control, making it convenient for staff to operate. In addition, the added pressure monitoring mechanism can not only help realize automatic control alarms, but also assist staff in obtaining real-time and reliable pressure data inside the tank. Attached Figure Description

[0015] The following is a brief explanation of the content represented by each of the accompanying drawings in this utility model specification:

[0016] Figure 1 This is a schematic diagram of the external system for a mobile energy storage tanker. Detailed Implementation

[0017] The following description, with reference to the accompanying drawings, details the specific implementation of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods. This will help those skilled in the art to have a more complete, accurate, and in-depth understanding of the inventive concept and technical solution of this utility model.

[0018] Compared to traditional natural gas heating, the external steam supply model from thermal power plants not only increases revenue for the heat source provider but also helps users save energy, reduce emissions, and lower energy costs, thus possessing significant market potential. Revenue from using steam for power generation is heavily influenced by grid-connected electricity prices, relevant subsidy policies, and settlement methods; while payments for externally sold steam are all prepayments, offering advantages in terms of cash flow.

[0019] There are various factories in the market that require steam, such as paper mills, precast concrete plants, timber mills, insulation material plants, textile mills, food processing plants, chemical plants, and clean heating companies in cold and frigid regions. To meet their production process requirements, these enterprises all need to install steam (hot water) boilers on their premises. Fuels mainly include coal, natural gas, pelleted biomass, and straw. With rising fuel prices and stricter environmental emission standards, the cost per ton of steam production has also increased. To reduce operating costs, newly built steam-using enterprises prioritize site selection near existing combined heat and power (CHP) plants. For waste-to-energy incineration companies, the steam demand market and the phasing out of national subsidies for waste-to-energy have brought new ideas to their business models. This is to expand the business scope of Green Energy's various municipal solid waste incineration projects and ensure stable cash flow.

[0020] like Figure 1 As shown, the external system of the mobile energy storage tanker mainly solves the problems of inflation and supply. The tanker is equipped with an inflation interface and a supply interface. The interface is a conventional interface used to connect to the plant's pipelines. The inflation interface is used to connect to the plant's air intake pipeline. The air intake pipeline is equipped with an air intake check valve, an air intake manual ball valve, and an air intake electric ball valve. Of the three manually controlled valves, one is electrically controlled and two are manually controlled, which ensures safety and facilitates on-site and remote operation. The supply interface is used to connect to the plant's air supply pipeline. The supply interface is equipped with an air supply manual ball valve, an air supply electric ball valve, and an air supply electric regulating valve. Similarly, of the three manually controlled valves, one is electrically controlled and two are manually controlled, which ensures safety and facilitates on-site and remote operation.

[0021] The system is equipped with a controller, which is a conventional PLC device that can be fixed to the body of a mobile tanker or be a stand-alone device. The controller is connected to the electric ball valve of the air intake pipe and the electric regulating valve of the air supply pipe via signal lines. The controller is connected to a local control device and a remote control device. The local control device is a control panel that can be operated on-site for convenient operation by staff. The remote control device is connected to the working chamber via wireless signal or a dedicated communication control device, such as a PDA.

[0022] The energy storage tank truck is equipped with an electric pressure gauge, which is connected to a communication device via a data cable to acquire signals from inside the tank and transmit them wirelessly. The controller communicates with the communication device to acquire the pressure signal, and then connects to and outputs the tank pressure data to a pressure display. Preferably, the energy storage tank truck has two electric pressure gauges and two pressure displays, each independently displaying the pressure data from one of the two electric pressure gauges. The two electric pressure gauges are located at the front and rear of the energy storage tank truck, respectively, allowing for more reliable monitoring of the tank pressure. The controller is also connected to an alarm system that can sound an alarm in case of problems.

[0023] In addition, at least one thermocouple thermometer can be installed inside the energy storage tank truck. The thermocouple thermometer is connected to the communication equipment via a wiring harness, and the temperature data inside the tank is displayed simultaneously using a pressure value display. A liquid level gauge vapor phase pipe is installed at the top of the energy storage tank truck, and a liquid level gauge liquid phase pipe is installed at the bottom. A liquid level gauge vapor phase valve is installed on the liquid level gauge vapor phase pipe, and a liquid level gauge liquid phase valve is installed on the liquid level gauge liquid phase pipe. A magnetic float flow meter is connected between the liquid level gauge vapor phase valve and the liquid level gauge liquid phase valve for physical monitoring of the liquid level.

[0024] In addition, a sewage outlet is provided at the bottom of the energy storage tank truck. A sewage shut-off valve and a manual ball valve for the sewage pipe are installed on the sewage outlet to facilitate sewage discharge. A safety valve is provided inside the energy storage tank truck. The safety valve is connected to a full-lift safety valve outside the energy storage tank truck through a pipeline. The manual ball valve for unblocking the pipeline and the electric regulating valve for unblocking the pipeline are connected in parallel at both ends of the full-lift safety valve through a pipeline.

[0025] The tanker truck is equipped with multiple sensors and valves. Based on feedback data from the sensors, the automatic control program adjusts the opening and closing status of the electric valves to meet the filling and gas supply requirements of users.

[0026] The specific installation method and working principle can be implemented manually or automatically with appropriate electronic control. The following explanation uses automatic control as an example (this does not mean the control program below needs protection):

[0027] Inflation status:

[0028] With all valves closed, correctly connect the inflation interface and manually open the electric ball valve (V7) on the air inlet pipe. At this point, the tank is in inflation mode because the pressure in the external air supply pipe is higher than the pressure inside the tank. Observe the pressure values ​​(P1 / P2) inside the tank to know the actual pressure and adjust the air supply rate of the external air supply pipe accordingly. When the pressure values ​​(P1 / P2) inside the tank reach the high alarm value, the automatic control system issues an alarm signal, triggering the built-in audible and visual alarm device on the electrical cabinet. At this time, manual intervention is required. Close the electric ball valve (V7) on the air inlet pipe and the air supply pipe valve in sequence to end the inflation process.

[0029] If the tank pressure (P1 / P2) reaches the high alarm value and inflation continues without human intervention, the electric ball valve (V7) in the air inlet pipe will automatically close when the tank pressure (P1 / P2) reaches the very high alarm value to ensure tank safety. If the tank pressure (P1 / P2) remains at the very high alarm value after the electric ball valve (V7) in the air inlet pipe is closed, the electric regulating valve (V14) in the drain pipe will automatically open to release pressure until the pressure returns to normal.

[0030] Gas supply status:

[0031] Ensure all valves are closed, correctly connect the gas supply interface, switch the control to automatic mode, and input the target gas supply pressure and pipeline safety pressure at the user end to begin supplying gas. Upon receiving the gas supply command, the automatic control system will immediately open the electric ball valve (V9) of the steam supply pipeline and gradually adjust the opening of the electric regulating valve (V15). Because the pressure inside the steam-filled tank is greater than the user's target pressure and gradually decreases, the opening of the electric regulating valve (V15) gradually increases until it is fully open and maintained. At this point, the tank pressure (P1 / P2) is approximately equal to the input target gas supply pressure at the user end and continues to decrease. Manual intervention is required to close the valve and complete the gas supply operation. The electric regulating valve (V15) uses PID control during adjustment, adjusting the opening of the electric regulating valve (V15) by calculating the difference between the input target gas supply pressure at the user end and the outlet pipeline pressure (P3).

[0032] During operation, equipment malfunctions and shutdowns may occur, causing a rapid increase in pipeline pressure and triggering the user's pipeline safety valve. The system compares the input pipeline safety pressure with the outlet pipeline pressure (P3) to determine the user's gas usage status. If an abnormal pressure is detected, commands are issued to close the electric ball valve (V9) and electric regulating valve (V15) of the steam supply pipeline to prevent further pressure increases. If the user's equipment returns to normal, the tank's automatic control program must be manually restarted.

[0033] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. An external system for a mobile energy storage tank truck, characterized by: The energy storage tanker is equipped with an inflation port and an air supply port. The inflation port is used to connect to the air intake pipe of the plant area. The air intake pipe is equipped with an air intake check valve, an air intake manual ball valve, and an air intake electric ball valve. The air supply port is used to connect to the air supply pipe of the plant area. The air supply port is equipped with an air supply manual ball valve, an air supply electric ball valve, and an air supply electric regulating valve. The system is equipped with a controller. The controller is connected to the air intake electric ball valve and the air supply electric regulating valve through signal lines. The controller is connected to a local control device and a remote control device.

2. The external system for mobile energy storage tankers of claim 1, wherein: The energy storage tank truck is equipped with an electric barometer, which is connected to a communication device via a data cable. The controller communicates with the communication device to obtain the pressure signal and connects to and outputs the tank pressure data to a pressure value display.

3. The external system for mobile energy storage tankers of claim 2, wherein: The energy storage tank truck is equipped with two electric barometers, and two pressure value displays are provided, each independently displaying the pressure data of the two electric barometers. The two electric barometers are located at the front and rear of the energy storage tank truck, respectively.

4. The external system for mobile energy storage tankers of claim 3, wherein: The controller is connected to an alarm.

5. The external system for mobile energy storage tankers according to any one of claims 1-4, characterized in that: The energy storage tanker is equipped with at least one thermocouple thermometer, which is connected to a communication device via a wiring harness.

6. The external system for mobile energy storage tankers of claim 5, wherein: The energy storage tank truck is equipped with a liquid level gauge gas phase pipe at the top and a liquid level gauge liquid phase pipe at the bottom. The liquid level gauge gas phase pipe is equipped with a liquid level gauge gas phase valve, and the liquid level gauge liquid phase pipe is equipped with a liquid level gauge liquid phase valve. A magnetic float flow meter is connected between the liquid level gauge gas phase valve and the liquid level gauge liquid phase valve.

7. The mobile energy storage tank car external system of claim 1 or 6, wherein: The bottom of the energy storage tanker is equipped with a drain outlet, which is fitted with a drain stop valve and a manual ball valve for the drain pipe.

8. The external system for mobile energy storage tankers of claim 7, wherein: The energy storage tank truck is equipped with a safety valve, which is connected to a full-opening safety valve outside the energy storage tank truck via a pipeline. A manual ball valve for unblocking pipelines and an electric regulating valve for unblocking pipelines are connected in parallel across the full-opening safety valve via pipelines.

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