A dual energy storage box energy filling system

Abstract

The present application relates to the field of automobile energy filling system test equipment, and in particular to automobile energy system test equipment, comprising two energy storage boxes arranged in parallel, each of the two energy storage boxes being connected to a group of heat exchange circuits, each group of heat exchange circuits being connected to a heat exchanger for controlling the energy temperature, the two energy storage boxes being connected by a connecting pipe, a second air-controlled ball valve and a third air-controlled ball valve being installed on the connecting pipe, an energy filling pipe being connected between the second air-controlled ball valve and the third air-controlled ball valve on the connecting pipe, an energy filling pipe being connected to the end of the energy filling pipe being connected to an energy filling gun, and an energy filling pump being installed on the energy filling pipe, which has the advantage of improving the efficiency and accuracy of the energy filling test.

Description

Technical Field

[0001] The present application relates to the field of automobile energy filling system test equipment, and in particular to a dual energy storage box energy filling system. Background Art

[0002] Energy conservation and emission reduction has become one of the hottest topics at present, and the reduction of mobile source pollution is an important part of energy conservation and emission reduction. In the automotive field, the energy supply system (such as the liquid fuel system) is the main component that generates energy consumption. Therefore, it is necessary to conduct preliminary tests to determine whether the working capacity of the energy supply system meets the standards.

[0003] The energy filling system is mainly used for filling tests related to the automobile energy (liquid fuel) system, energy filling pollutant emission tests, etc. Its purpose is to test the working ability of the entire energy (liquid fuel) system of the automobile, such as testing whether the automobile energy storage tank meets the specific volume, whether the energy filling can jump the gun at the normal point, and whether the pressure, temperature, exhaust volume, etc. of the energy storage tank during the energy filling process meet the requirements.

[0004] However, during the actual energy filling process of a car, its energy system will have a variety of different actual operating conditions. For example, in a winter environment, the energy temperature in the energy storage box is often lower. At this time, the temperature of the energy added by the energy filling gun must be higher than the temperature in the car's energy storage box; or in a summer environment, the energy temperature in the car's energy storage box is often higher. At this time, the energy filling temperature must be lower than the temperature in the energy storage box. Therefore, in order to make the test process closer to the actual operating conditions of the car, tests need to be carried out at different temperatures.

[0005] In related technologies, in order to meet the requirements of these different working conditions, the test energy storage box is often controlled to reach different temperatures. For example, a certain amount of energy is added to the test energy storage box at a certain temperature. After a few minutes, the temperature of the test energy storage box is increased by heating it in a water bath to a predetermined value, and then the remaining energy is added to simulate the actual working conditions as closely as possible.

[0006] However, in the above test method, a long waiting time is required before the test energy storage box reaches different temperatures, which greatly reduces the efficiency of the entire test. In addition, during the test, the test energy storage box is greatly affected by the external temperature. For example, if tested in winter, the test energy storage box will quickly approach room temperature in a very short time, which greatly reduces the accuracy of the entire test. Summary of the invention

[0007] The present application provides a dual energy storage box energy filling system, which can improve the efficiency and accuracy of energy filling tests.

[0008] The above technical objectives of this application are achieved through the following technical solutions:

[0009] A dual energy storage box energy filling system, the energy filling system includes two energy storage boxes arranged in parallel, the two energy storage boxes are respectively connected to a group of heat exchange circuits, each group of heat exchange circuits is connected to a heat exchanger for controlling the energy temperature, the two energy storage boxes are connected by a connecting pipe, the connecting pipe is equipped with air-controlled ball valves and air-controlled ball valves, the connecting pipe is connected with a refueling pipe between the air-controlled ball valves, the end of the energy filling pipe is connected to an energy filling gun, and an energy filling pump is installed on the energy filling pipe.

[0010] By adopting the above solution, the two energy storage boxes have separate heat exchange circuits, so the energy in the energy storage box can maintain an independent temperature. When filling, open the air-controlled ball valve corresponding to the energy storage box, insert the energy filling gun into the test energy storage box, and add oil to the test energy storage box through the main oil pump, so as to achieve energy addition with different requirements. For example, in a certain test, it is necessary to first add 20% of the energy at temperature T1 to the test energy storage box, and then add 80% of the fuel at temperature T2. The energy temperature in different energy storage boxes can be controlled at T1 and T2 through two heat exchange circuits. Therefore, the accuracy of the energy filling test is greatly improved, and it is not necessary to heat the test liquid fuel energy storage box to the test temperature. At the same time, the influence of the external environment on the test results is greatly reduced.

[0011] Optionally, an interconnecting pipe is provided at the bottom of the two energy storage boxes, the two energy storage boxes are interconnected through the interconnecting pipe, and an air-controlled ball valve is installed on the interconnecting pipe.

[0012] By adopting the above solution, when two energy storage boxes need to be used together, the air-controlled ball valve on the interconnecting pipe can be controlled to open, so that the two energy storage boxes are connected to each other, thereby expanding the capacity of the entire energy storage system.

[0013] Optionally, the end of the refueling pipe is divided into a plurality of branches, and each branch is connected to a corresponding energy filling gun.

[0014] By adopting the above scheme, the setting of multiple energy filling guns can be arbitrarily selected, which can improve the convenience of the test on the one hand, and can also carry out multiple groups of tests at the same time as needed to improve the test efficiency.

[0015] Optionally, a return pipe is connected to the branch where the energy filling pipe and the energy filling gun are located. The end of the return pipe is divided into two and connected to two energy storage boxes respectively. An air-controlled ball valve is installed on the connecting branch between the return pipe and the two energy storage boxes.

[0016] By adopting the above solution, during the energy filling process, the return liquid pipe is in an open state, and the corresponding air-controlled ball valve is also in an open state, thereby forming a loop structure, so that there will be no deflation phenomenon inside the refueling pipe, thereby improving safety.

[0017] Optionally, the energy filling pipe is connected to a circulation loop, the ends of the circulation loop are respectively connected to two energy storage boxes, and the circulation loop is installed with an overflow valve and an air-controlled ball valve for controlling the circulation loop to be connected to the corresponding energy storage box.

[0018] By adopting the above scheme, before refueling the test energy storage tank, the circulation loop is in an open state. For example, when refueling with the No. 1 energy storage tank, the circulation loop is opened to connect with the No. 1 energy storage tank, and the return oil pipe is connected with the No. 1 energy storage tank; when refueling with the No. 2 energy storage tank, the circulation loop is opened to connect with the No. 2 energy storage tank, and the return liquid pipe is connected with the No. 2 energy storage tank, so that the refueling process can maintain a dynamic cycle, and the refueling pressure and flow rate remain constant, thereby improving the accuracy of the entire energy refueling test. In addition, when two energy storage tanks are used to cooperate in refueling, the return liquid pipe is connected with the No. 1 energy storage tank, and the circulation loop is connected with the No. 2 energy storage tank, forming a large refueling loop to ensure that the refueling temperature, pressure, and flow rate are all constant.

[0019] Optionally, an overflow valve, a filter and an air-controlled ball valve are installed on the main trunk of the circulation loop. The main trunk of the circulation loop is a three-way structure at the air-controlled ball valve and is divided into two branches that are respectively connected to two energy storage boxes.

[0020] By adopting the above scheme, when the filling flow rate is greater than the preset value, the overflow valve is pushed open, and the excess oil passes through the overflow valve and the filter, and then flows back into the corresponding energy storage box through the air-controlled ball valve to form a refueling circuit.

[0021] Optionally, the energy storage box is provided with an energy filling port for inserting an energy filling gun.

[0022] By adopting the above scheme, before conducting the energy filling test, the energy filling gun can be first inserted into the energy filling port, and then the filling rate, flow rate and pressure inside the energy filling pipe can be adjusted to constant values, and then the energy filling gun can be inserted into the test energy storage box, thereby reducing the test error.

[0023] Optionally, a constant pressure valve, a temperature sensor and a pressure sensor are installed on the energy storage box.

[0024] Optionally, the tops of the two energy storage boxes are connected to a same fluid replenishment pipeline, and the fluid replenishment pipeline is sequentially connected to an air-controlled ball valve, an air-controlled pump, a check valve and a filter.

[0025] By adopting the above scheme, energy can be added to the inside of the energy storage box through the liquid replenishment pipeline. Under the action of the air-controlled pump, the external liquid energy is first filtered by the filter, and then passes through the check valve, the air-controlled pump and the air-controlled ball valve, and finally is pumped into the corresponding energy storage box to achieve liquid replenishment.

[0026] Optionally, the liquid infusion pipeline extends from the air-controlled ball valve to be connected to a liquid guide pipeline.

[0027] By adopting the above solution, the liquid guide pipeline can guide the remaining energy in the experimental energy storage box or the energy in some small containers into the large container. During operation, the liquid infusion pipeline is inserted into the experimental energy storage box or the small container, and the energy is finally guided from the liquid infusion pipeline and the liquid guide pipeline into the large container through the air-controlled pump.

[0028] In summary, this application has the following technical effects:

[0029] 1. By setting up two independent energy storage boxes, and each energy storage box is independently provided with a heat exchange circuit, the two energy storage boxes can have different temperatures inside to meet the requirements of different test scenarios and improve the accuracy of the energy filling test of the test energy storage box;

[0030] 2. By setting a circulation loop and a liquid return pipe on the energy filling pipe, the liquid filling process can be carried out under the set flow rate, pressure, temperature and other conditions, ensuring the smooth progress of the energy filling test process, reducing test errors and improving test safety;

[0031] 3. By setting up a refill pipeline, the energy storage box can be refilled on demand, and an external circulation liquid guide pipeline is set at the refill pipeline, so that energy can be processed centrally and energy waste can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of a dual energy storage box energy filling system in an embodiment of the present application;

[0033] Figure 2 This is the piping structure diagram for the individual energy filling of the No. 1 energy storage box;

[0034] Figure 3 This is the pipeline structure diagram for the separate energy filling of the No. 2 energy storage tank;

[0035] Figure 4 It is a piping structure diagram for energy filling of the combination of the No. 1 energy storage tank and the No. 2 energy storage tank.

[0036] In the figure, the first energy storage box-01; the second energy storage box-02; the constant pressure valve-011; the temperature sensor-012; the pressure sensor-013; the energy filling port-021; the interconnecting pipe-03; the first pneumatic ball valve-031; the heat exchanger-041; the circulation pump-042; the manual ball valve-043; the first filter-044; the connecting pipe-05; the second pneumatic ball valve-051; the third pneumatic ball valve-052; the energy filling pipe-06; the energy filling pump-061; the pressure sensor-062; the temperature sensor-063; the flow control valve-064; the flow meter-065; the fourth pneumatic ball valve-066; the return liquid Pipe-067; the fifth pneumatic ball valve-068; the energy filling gun-069; the circulation loop-07; the overflow valve-071; the second filter-072; the sixth pneumatic ball valve-073; the liquid replenishing pipeline-08; the seventh pneumatic ball valve-081; the eighth pneumatic ball valve-082; the ninth pneumatic ball valve-083; the pneumatic pump-084; the check valve-085; the third filter-086; the manual ball valve-087; the liquid guide tube-088; the liquid energy gas recovery unit-09; the liquid energy gas recovery pipeline-091; the vacuum pump-092; the flow meter-093; the gas-liquid separator-094; the energy gas recovery pipeline-095. DETAILED DESCRIPTION

[0037] The present application is further described in detail below in conjunction with the accompanying drawings.

[0038] Reference Figure 1 The present application provides a dual energy storage box energy filling system, including two groups of energy storage boxes (the energy stored in the energy storage boxes can be methanol gasoline, methanol, ethanol gasoline, ethanol, current standard gasoline, etc.). In this embodiment, for the convenience of distinction, they are respectively defined as No. 1 energy storage box 01 and No. 2 energy storage box 02, wherein the No. 1 energy storage box 01 has a volume of 100L, and the No. 2 energy storage box 02 has a volume of 80L. The two energy storage boxes are arranged side by side and kept horizontally aligned. The bottom of the No. 1 energy storage box 01 and the bottom of the No. 2 energy storage box 02 are connected through an interconnecting pipe 03, and a first pneumatic ball valve 031 is installed on the interconnecting pipe 03. When the No. 1 energy storage box 01 and the No. 2 energy storage box 02 work independently, the first pneumatic ball valve 031 remains in a closed state, and when the No. 1 energy storage box 01 and the No. 2 energy storage box 02 work in coordination, the first pneumatic ball valve 031 is in an open state.

[0039] Each energy storage box has an independent heat exchange circuit for individually controlling the energy temperature in each energy storage box. The heat exchange circuit includes a heat exchanger 041, a circulation pump 042, a manual ball valve 043, and two first filters 044 connected in sequence through pipelines, one of which is installed inside the energy storage box, and the other is installed between the manual ball valve 043 and the circulation pump 042. A liquid level sensor is installed inside each energy storage box to monitor the liquid level inside the energy storage box, and alarm when it is lower than the preset value to replenish energy in time.

[0040] A constant pressure valve 011, a temperature sensor 012, and a pressure sensor 013 are installed on both the No. 1 energy storage box 01 and the No. 2 energy storage box 02, and two groups of temperature sensors 012 are provided. The temperature sensor 012 and the pressure sensor 013 monitor the temperature and pressure inside the energy storage box in real time, and transmit the temperature signal and the pressure signal to the controller unit. The controller responds to the temperature signal and the pressure signal, and controls the opening and closing of the constant pressure valve 011 and the heating temperature of the heat exchanger 041, so as to maintain a constant temperature and pressure inside the No. 1 energy storage box 01 and the No. 2 energy storage box 02.

[0041] The bottoms of the No. 1 energy storage box 01 and the No. 2 energy storage box 02 are connected through a connecting pipe 05, and a second air-controlled ball valve 051 and a third air-controlled ball valve 052 are installed on the connecting pipe 05. The second air-controlled ball valve 051 is located on the side close to the No. 1 energy storage box 01, and the third air-controlled ball valve 052 is located on the side close to the No. 2 energy storage box 02. The connecting pipe 05 is connected with an energy filling pipe 06, and the connecting position of the energy filling pipe 06 and the connecting pipe 05 is located between the second air-controlled ball valve 051 and the third air-controlled ball valve 052. The end of the energy filling pipe 06 is divided into three liquid filling branches, each of which is connected to a known energy filling gun 069, and each of which is installed with a set of fourth air-controlled ball valves 066, so when different energy filling guns 069 are used, the corresponding fourth air-controlled ball valve 066 can be opened. When conducting experiments, the three energy filling guns 069 can be used at any time according to actual needs to refuel the test energy storage box. Energy storage box No. 1 01 and energy storage box No. 2 02 achieve different temperatures through different heat exchange circuits. When it is necessary to add energy in energy storage box No. 1 01, the second air-controlled ball valve 051 is controlled to open and the third air-controlled ball valve 052 is controlled to close; when it is necessary to add energy in energy storage box No. 2 02, the third air-controlled ball valve 052 is controlled to open and the second air-controlled ball valve 051 is closed; when mixed energy is required, the second air-controlled ball valve 051 and the third air-controlled ball valve 052 are controlled to open at the same time.

[0042] The pipeline structure of the energy filling pipe 06 is equipped with an energy filling pump 061, a pressure sensor 062, a temperature sensor 063, a flow control valve 064 and a flow meter 065, and the energy filling pump 061, the pressure sensor 062, the temperature sensor 063, the flow control valve 064 and the flow meter 065 are all electrically connected to the controller unit. When energy filling is required, the controller unit controls the energy filling pump 061 to start, and the pressure sensor 062 and the temperature sensor 063 monitor the energy temperature and pressure in the pipeline in real time to ensure that the test process can be filled with energy at a certain temperature, a certain pressure and a certain flow rate, thereby ensuring the test accuracy.

[0043] The branch connection between the energy filling pipe 06 and the energy filling gun 069 is connected with a return pipe 067. The end of the return pipe 067 is divided into two branches and is respectively connected to the No. 1 energy storage box 01 and the No. 2 energy storage box 02. A set of fifth air-controlled ball valves 068 are installed on each branch of the return pipe 067. The function of the return pipe 067 is to ensure that the internal pressure of the pipeline structure where the energy filling pipe 06 is located is normal to prevent the pipe from bursting. That is, when the oil pressure in the energy filling pipe is higher than the preset value, the controller unit will control the corresponding fifth air-controlled ball valve 068 to open, thereby ensuring the smooth progress of the liquid filling process and protecting the entire test equipment.

[0044] The energy filling pipe 06 is connected to the circulation loop 07, which is divided into two branches and connected to the No. 1 energy storage box 01 and the No. 2 energy storage box 02 respectively. The main pipeline of the circulation loop 07 is connected to the overflow valve 071 and the second filter 072. The connection between the main and branch of the circulation loop 07 is a three-way structure, and the connection is installed with the sixth air-controlled ball valve 073. During the liquid filling process, the sixth air-controlled ball valve 073 is opened and connected to one of the energy storage boxes, which is used to adjust the flow rate and pressure during the energy filling process to ensure that the energy filling process is carried out under the predetermined pressure and flow rate conditions.

[0045] The sides of energy storage box No. 1 01 and energy storage box No. 2 02 are both connected to energy filling ports 021 near the top (the energy filling port of energy storage box No. 1 01 is not shown in the figure). Before adding liquid to the test energy storage box, the corresponding energy filling gun 069 must be inserted into the energy filling port 021, and then the filling pressure, flow rate and other data of the entire filling circuit are adjusted. After all data are up to standard, the test energy storage tank can be filled with liquid to reduce test errors.

[0046] The top positions of the No. 1 energy storage box 01 and the No. 2 energy storage box 02 are connected with the same infusion pipeline 08, and the infusion pipeline 08 is used to replenish energy. Specifically, the side of the infusion pipeline 08 close to the No. 1 energy storage box 01 is connected with the seventh air-controlled ball valve 081, and the side close to the No. 2 energy storage box 02 is connected with the eighth air-controlled ball valve 082. By opening different air-controlled ball valves, energy replenishment for different energy storage boxes is achieved. The main road of the infusion pipeline 08 is connected with the ninth air-controlled ball valve 083, the air-controlled pump 084, the check valve 085, and the third filter 086 in sequence. During the infusion process, the energy is first filtered through the third filter 086. Under the action of the air-controlled pump 084, the filtered energy passes through the check valve 085, the air-controlled pump 084, and the ninth air-controlled ball valve 083 in sequence, and finally enters the corresponding energy storage box. A three-way branch is set at the ninth air-controlled ball valve 083, and the three-way branch is a liquid guide tube 088. The bottom of the liquid guide tube 088 is connected to a manual ball valve 087. The liquid guide tube 088 is generally used to introduce liquid fuel in a small container into a large container. The specific operation is: first, manually open the manual ball valve 087, and the controller unit controls the ninth air-controlled ball valve 083 to open, so that the liquid guide tube 088 is connected to the pipeline where the air-controlled pump 084 is located, and then the bottom of the liquid replenishment pipeline 08 is inserted into the container (or test energy storage box) that needs liquid guidance, and the air-controlled pump 084 is started. The air-controlled pump 084 introduces energy into the specific container through the liquid guide tube 088.

[0047] The energy filling pipe 06 is provided with a liquid energy gas recovery unit 09 at the position connected to the energy filling gun 069. The liquid energy gas recovery unit 09 includes a liquid energy gas recovery pipeline 091, a vacuum pump 092, a flow meter 093, and a gas-liquid separator 094. The liquid energy gas recovery pipeline 091 is connected to the top side of the No. 1 energy storage tank 01. The flow meter 093 is installed between the vacuum pump 092 and the gas-liquid separator 094. The gas-liquid separator 094 is connected to an energy gas recovery pipeline 095 at a position close to the energy filling gun 069. The energy gas recovery pipeline 095 is connected to the No. 1 energy storage tank 01, and the connection position is located below the connection position between the liquid energy gas recovery pipeline 091 and the No. 1 energy storage tank 01. Air-controlled ball valves are installed on both the liquid energy gas recovery pipeline 091 and the energy gas recovery pipeline 095.

[0048] When the No. 1 energy storage tank 01 is filled independently, the pipeline connectivity and energy filling process are as follows Figure 2 shown.

[0049] The second air-controlled ball valve 051, the fourth air-controlled ball valve 066 and the fifth air-controlled ball valve 068 connected to the No. 1 energy storage tank 01 are all in an open state, the third air-controlled ball valve 052, the first air-controlled ball valve 031 and the fifth air-controlled ball valve 068 connected to the No. 2 energy storage tank 02 are in a closed state, the sixth air-controlled ball valve 073 is opened to the circulation loop 07 connected to the No. 1 energy storage tank 01, at this time the energy filling pump 061 is started, and the liquid energy filling gun 069 is first inserted into the energy filling port 021 corresponding to the No. 1 energy storage tank 01 (not shown in the figure) After adjusting the filling flow rate, pressure and other data in the entire energy filling pipe 06 to specific values, the energy filling gun 069 is inserted into the test energy storage box. Driven by the energy filling pump 061, the liquid energy in the No. 1 energy storage tank 01 is added to the test energy storage tank at a specific flow rate, specific pressure and specific temperature. During the filling process, part of the liquid energy will flow back into the No. 1 energy storage tank 01 along the return liquid pipe 067 and the circulation loop, thereby ensuring the constant internal pressure of the energy filling pipe system, ensuring a smooth filling process and extending the service life of the equipment.

[0050] When the No. 2 energy storage tank 02 is independently filled with liquid, the pipeline connectivity and the filling process are as follows Figure 3 shown.

[0051] The third air-controlled ball valve 052, the fourth air-controlled ball valve 066 and the fifth air-controlled ball valve 068 connected to the second energy storage tank 02 are in the open state, the second air-controlled ball valve 051, the first air-controlled ball valve 031 and the fifth air-controlled ball valve 068 connected to the first energy storage tank 01 are in the closed state, the sixth air-controlled ball valve 073 is opened to connect with the circulation loop 07 and the second energy storage tank 02, at this time the energy filling pump 061 is started, the energy filling gun 069 is first inserted into the energy filling port 021 corresponding to the second energy storage tank 02, and the whole is adjusted. After the filling flow rate, pressure and other data in the energy filling pipe 06 reach specific values, the energy filling gun 069 is inserted into the test fuel energy storage tank. Driven by the energy filling pump 061, the oil in the No. 2 energy storage tank 02 is added to the test energy storage tank at a specific flow rate, specific pressure and specific temperature. During the filling process, part of the energy will flow back into the No. 2 energy storage tank 02 along the return pipe 067 and the circulation loop 07, thereby ensuring the constant internal pressure of the energy filling pipe system, ensuring a smooth filling process and extending the service life of the equipment.

[0052] When the No. 1 energy storage tank 01 and the No. 2 energy storage tank 02 are combined and filled, the pipeline connection and the filling process are as follows: Figure 4 shown.

[0053] The second air-controlled ball valve 051, the third air-controlled ball valve 052, the first air-controlled ball valve 031, the fourth air-controlled ball valve 066 and the fifth air-controlled ball valve 068 connected to the No. 1 energy storage box 01 are all in an open state, the fifth air-controlled ball valve 068 connected to the No. 2 energy storage box 02 is in a closed state, and the sixth air-controlled ball valve 073 is opened to the circulation loop 07 to connect with the No. 2 energy storage box 02. It can be seen from the above that the No. 1 energy storage box 01 and the No. 2 energy storage box 02 are in a connected state. At this time, the energy filling pump 061 is started, and the energy filling gun 069 is inserted into the No. 1 energy storage box. In the energy filling port 021 corresponding to the storage box 01, after adjusting the filling flow rate, pressure and other data in the entire energy filling pipe 06 to specific values, the energy filling gun 069 is inserted into the test energy storage box, and driven by the energy filling pump 061, energy is extracted from the connecting pipe 05, and finally added to the inside of the test energy storage box, while the return liquid pipe 067 is connected with the No. 1 energy storage tank 01, and the circulation loop 07 is connected with the No. 2 energy storage tank 02. Therefore, the energy circulation flow is obvious during the filling process, and the No. 1 energy storage tank 01 and the No. 2 energy storage tank 02 form a complete whole.

[0054] To summarize, energy storage box No. 1 01 and energy storage box No. 2 02 can be used for energy filling tests individually or in combination, and can cope with different energy filling test scenarios. Energy storage box No. 1 01 and energy storage box No. 2 02 each have a separate heat exchange circuit, which can obtain energy at different temperatures as needed. The entire test equipment has a high degree of accuracy.

[0055] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A dual energy storage tank energy filling system, characterized in that: The energy filling system comprises two energy storage boxes arranged in parallel, each of the two energy storage boxes being connected to a group of heat exchange circuits, each group of heat exchange circuits being connected to a heat exchanger (041) for controlling the energy temperature, the two energy storage boxes being connected via a connecting pipe (05), a second air-controlled ball valve (051) and a third air-controlled ball valve (052) being installed on the connecting pipe (05), an energy filling pipe (06) being connected between the second air-controlled ball valve (051) and the third air-controlled ball valve (052) on the connecting pipe (05), an energy filling pipe (06) being connected to the end of the energy filling pipe (06) being connected to an energy filling gun (069), and an energy filling pump (061) being installed on the energy filling pipe (06); the end portion of the energy filling pipe (06) The energy filling pipe (06) is connected to a plurality of branches, each branch corresponding to an energy filling gun (069); a return pipe (067) is connected to the branch where the energy filling pipe (06) and the energy filling gun (069) are located; the end of the return pipe (067) is divided into two and respectively connected to two energy storage boxes; a fifth air-controlled ball valve (068) is installed on the connecting branch between the return pipe (067) and the two energy storage boxes; the energy filling pipe (06) is connected to a circulation loop (07); the ends of the circulation loop (07) are respectively connected to the two energy storage boxes; an overflow valve (071) and a sixth air-controlled ball valve (073) for controlling the circulation loop (07) to be connected to the corresponding energy storage box are installed on the circulation loop (07).

2. A dual energy storage tank energy filling system according to claim 1, characterized in that: An interconnecting pipe (03) is provided at the bottom of the two energy storage boxes, and the two energy storage boxes are connected to each other through the interconnecting pipe (03). A first air-controlled ball valve (031) is installed on the interconnecting pipe (03).

3. A dual energy storage tank energy filling system according to claim 2, characterized in that: An overflow valve (071), a second filter (072) and a sixth air-controlled ball valve (073) are installed on the main trunk of the circulation loop (07); the main trunk of the circulation loop (07) is a three-way structure at the sixth air-controlled ball valve (073) and is divided into two branches respectively connected to the two energy storage boxes.

4. A dual energy storage tank energy filling system according to claim 3, characterized in that: The energy storage box is provided with an energy filling port (021) for inserting an energy filling gun (069).

5. The dual energy storage tank energy filling system according to claim 1, characterized in that: The energy storage box is installed with a constant pressure valve (011), a temperature sensor (012) and a pressure sensor (013).

6. The dual energy storage tank energy filling system according to claim 1, characterized in that: The tops of the two energy storage boxes are connected to a common liquid replenishment pipeline (08), and the liquid replenishment pipeline (08) is sequentially connected to a ninth air-controlled ball valve (083), an air-controlled pump (084), a check valve (085) and a third filter (086).

7. A dual energy storage tank energy filling system according to claim 6, characterized in that: The liquid infusion pipeline (08) extends at the ninth air-controlled ball valve (083) and is connected to a liquid guide tube (088).

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