Storage box capable of pressurizing working medium and storage box system

Abstract

The utility model provides a storage tank capable of pressurizing a working medium and a storage tank system. The storage tank comprises a storage tank and a pressurizing unit, a soft bag is arranged in the storage tank and divides the storage tank into a liquid cavity located on the upper side and an air cavity located on the lower side. A vacuumizing opening, a working medium inlet and a working medium outlet are formed in the upper side of the liquid cavity, and each of the vacuumizing opening, the working medium inlet and the working medium outlet is of a closed structure; the lower side of the air cavity is communicated with a pressurizing unit; and the liquid cavity is in a vacuum state. According to the device, the storage tank is divided into the liquid cavity and the air cavity through the soft bag, meanwhile, air in the liquid cavity is pumped out through the vacuumizing opening, and a working medium is prevented from being mixed with air when being injected; and the pressurizing unit is communicated with the air cavity, so that the soft bag is deformed by increasing the pressure in the air cavity when the working medium is filled, the working medium in the liquid cavity is extruded, the filling of the working medium is realized, and the degassing quality of the working medium is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerospace working fluid filling, in particular to a storage tank and a storage tank system which can pressurize working fluid. Background Art

[0002] The "vacuum pressurization method" is a method of adding working fluid to a closed pipeline. The pipeline is first evacuated, and then the vacuum is used to allow the working fluid to self-suck into the pipeline. The operations of the "vacuum pressurization method" mainly include: injecting working fluid into the storage tank for storage, degassing the working fluid in the storage tank, evacuating the internal loop system, and pressurizing the working fluid into the internal loop system. It mainly includes: (1) working fluid storage function: it can store the working fluid to be filled, measure the storage amount, and observe the working fluid liquid level; (2) vacuum function: it can vacuum the gas cavity (lower part) of the storage tank; it can vacuum the liquid cavity (upper part) of the storage tank (degassing treatment); it can vacuum the internal circuit through the vacuum line interface; and it can measure the vacuum degree; (3) working fluid filling function: it can pressurize the storage tank, implement filling operations, adjust the filling pressure, implement pressurization and pressure relief, and measure the filling pressure and filling amount; the gas cylinder used to pressurize the storage tank should be able to measure the gas cylinder pressure and output pressure; (4) working fluid discharge and equipment cleaning function: after filling, the working fluid can be discharged; the equipment can be cleaned and cleaned, and it is ensured that no impurities and excess materials are introduced into the working fluid; (5) control function: it can control (buttons or knobs) the vacuuming, pressurization, pressure relief, filling, discharge, cleaning and other operations of each line.

[0003] When there is a large height difference in the pipeline, there may be a cavity in the upper pipeline. In order to ensure that the working fluid can fill the pipeline, the working fluid needs to be pressurized. The current liquid storage tank is of the type where gas and liquid are not separated. During the pressurization stage, the high-pressure gas will dissolve into the working fluid that has just been degassed, affecting the degassing of the working fluid. Utility Model Content

[0004] In order to solve the problem that the gas in the existing liquid storage tank will dissolve into the working medium when pressurized, affecting the degassing of the working medium, the utility model provides a storage tank that can pressurize the working medium, including a storage tank and a pressurizing unit;

[0005] A soft bladder is provided in the storage tank, and the soft bladder divides the storage tank into a liquid cavity located at the upper side and an air cavity located at the lower side;

[0006] A vacuum port, a working fluid inlet and a working fluid outlet are provided on the upper side of the liquid cavity, and the vacuum port, the working fluid inlet and the working fluid outlet all have a closed structure;

[0007] The lower side of the air cavity is connected to a pressurizing unit;

[0008] The liquid chamber is in a vacuum state.

[0009] Preferably, the storage tank comprises a storage tank cover, a liquid cavity portion and an air cavity portion;

[0010] The liquid cavity portion is an annular structure;

[0011] The air cavity portion is an inverted cover-like structure;

[0012] The tank cover, the liquid cavity portion and the gas cavity portion are arranged from top to bottom and are coaxially and sequentially sealed and connected;

[0013] The soft bag is installed at a connection position between the air cavity part and the liquid cavity part;

[0014] The pressurizing unit is connected to a side of the air cavity portion away from the liquid cavity portion.

[0015] Preferably, a transparent observation window is installed on the liquid chamber portion.

[0016] Preferably, the soft capsule comprises a flexible membrane;

[0017] The peripheral side of the flexible diaphragm is sealed and connected to the air cavity portion.

[0018] Preferably, the main body of the flexible diaphragm is cloth-reinforced rubber, and the surface material is EPDM rubber.

[0019] Preferably, the pressurizing unit comprises a pressurized gas cylinder;

[0020] The mouth of the pressurized gas cylinder is provided with a pressure reducing valve;

[0021] The other end of the pressure reducing valve is communicated with the air cavity portion through a pipeline.

[0022] Preferably, the vacuum port is connected to a vacuum pump.

[0023] Preferably, the working fluid outlet is equipped with a filling wrench.

[0024] Based on the same concept, the utility model also provides a tank system capable of pressurizing a working fluid, comprising a filling operation platform and a tank capable of pressurizing a working fluid;

[0025] The filling operation station is electrically connected to the storage tank and the pressurizing unit of the storage box respectively.

[0026] Preferably, the filling operation platform and the lower part of the tank are respectively provided with moving units.

[0027] Compared with the prior art, the beneficial effects of the utility model are:

[0028] The utility model provides a storage box capable of pressurizing a working fluid, comprising a storage tank and a pressurizing unit; a soft bag is arranged in the storage tank, and the soft bag divides the storage tank into a liquid cavity located on the upper side and an air cavity located on the lower side; a vacuum port, a working fluid inlet and a working fluid outlet are arranged on the upper side of the liquid cavity, and the vacuum port, the working fluid inlet and the working fluid outlet all have a closed structure; the lower side of the air cavity is connected with a pressurizing unit; the liquid cavity is in a vacuum state. The device provided by the utility model divides the storage tank into a liquid cavity and an air cavity through a soft bag, and at the same time extracts the gas in the liquid cavity through the vacuum port to prevent the working fluid from mixing with air when filling the working fluid; and then the pressurizing unit is connected with the air cavity, so that when filling the working fluid, the pressure in the air cavity is increased, so that the soft bag is deformed, the working fluid in the liquid cavity is squeezed, the working fluid is filled, and the degassing quality of the working fluid is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is an overall structural diagram of the storage tank capable of pressurizing the working medium of the utility model;

[0030] Figure 2 This is an overall structural diagram of the storage tank system of the utility model that can pressurize the working medium;

[0031] Figure 3 This is a front structural diagram of the storage tank system of the utility model that can pressurize the working medium;

[0032] Figure 4 It is a side structural diagram of the storage tank system capable of pressurizing the working medium of the utility model;

[0033] Among them, 1. storage tank; 2. soft bag; 3. storage tank cover; 4. liquid cavity part; 5. gas cavity part; 6. transparent observation window; 7. pressurized gas cylinder; 8. cart; 9. electronic scale; 10. working fluid inlet; 11. vacuum port; 12. working fluid outlet. DETAILED DESCRIPTION

[0034] In order to better understand the present invention, the contents of the present invention are further described below in conjunction with the accompanying drawings of the specification.

[0035] The utility model provides a storage box capable of pressurizing a working medium. The storage tank is divided into a liquid cavity and an air cavity by a soft bag. At the same time, the gas in the liquid cavity is extracted through a vacuum port to prevent the working medium from mixing with air when the working medium is filled. Then, a pressurizing unit is connected with the air cavity, so that when the working medium is filled, the pressure in the air cavity is increased, the soft bag is deformed, and the working medium in the liquid cavity is squeezed, so that the working medium is filled, and the degassing quality of the working medium is improved.

[0036] Embodiment 1:

[0037] A tank capable of pressurizing a working fluid, such as Figure 1 and Figure 2As shown, it includes a storage tank 1 and a pressurizing unit; a soft bag 2 is arranged in the storage tank 1, and the soft bag 2 divides the storage tank 1 into a liquid cavity located at the upper side and an air cavity located at the lower side; a vacuum port 11, a working fluid inlet 10 and a working fluid outlet 12 are opened on the upper side of the liquid cavity, and the vacuum port 11, the working fluid inlet 10 and the working fluid outlet 12 all have a closed structure; the lower side of the air cavity is connected to the pressurizing unit; the liquid cavity is in a vacuum state.

[0038] The storage tank 1 includes a storage tank cover 3, a liquid cavity part 4 and an air cavity part 5; the liquid cavity part 4 is an annular structure; the air cavity part 5 is an inverted cover-like structure; the storage tank cover 3, the liquid cavity part 4 and the air cavity part 5 are arranged from top to bottom, and are coaxially sealed and connected in sequence; the soft bag 2 is installed in the air cavity part 5 at the connection position with the liquid cavity part 4; the pressurizing unit is connected to the side of the air cavity part 5 away from the liquid cavity part 4. The storage tank cover 3 can be disassembled to facilitate the pouring of the working medium and the cleaning of the liquid cavity. In this embodiment, the storage tank cover 3, the liquid cavity part 4 and the air cavity part 5 are detachably fixedly connected by bolts, and a sealing ring is also installed at the connection.

[0039] like Figure 3 As shown, a transparent observation window 6 is installed on the liquid cavity 4, specifically, a transparent visible window is designed on the outer wall of the storage tank 1, which is convenient for visually observing the liquid level. There are two transparent observation windows 6, which are installed at both ends of the diameter of the liquid cavity 4 respectively.

[0040] Storage tank 1 uses the small storage tank equipment finalized by Tianjin Pressure Vessel Equipment Company as the prototype, and is modified and customized according to the needs of this application. It can meet the design indicators specified in the technical requirements, and the design weight of storage tank 1 is 30kg. The outer shell of storage tank 1 uses 316L stainless steel material, which has good compatibility with ethylene glycol. The volume is designed to be 50L, which meets the requirement of 30Kg filling volume. The soft bag 2 is embedded in the storage tank 1 to ensure that the working fluid is isolated from the gas. At the same time, when the soft bag 2 and the tank wall are filled with a certain pressure of gas, the soft bag 2 can be turned over to ensure that all working fluids can be discharged from the storage tank, saving working fluid. The design pressure of storage tank 1 is 0.5MPa to ensure the safety of pressurized equipment. The design of storage tank 1 takes into account good maintainability and is easy to clean and repair. In this embodiment, the diameter of storage tank 1 is 350mm, the height is 550mm, and the wall thickness is 5mm; the material of transparent observation window 6 is tempered glass; the sealing material of storage tank 1 is polytetrafluoroethylene; the weight of the storage tank is 30kg.

[0041] The storage tank 1 used in this embodiment is a gas-liquid separation storage tank. In order to ensure the isolation of the working fluid from the gas, the storage tank 1 is isolated using a soft bag 2. If the material of the soft bag 2 is not selected well, it may cause the working fluid gas capacity to exceed the standard, or the insufficient elasticity may cause problems such as difficulty in filling. In order to avoid this risk, the material of the soft bag 2 is selected as cloth-reinforced rubber, and the surface material is EPDM. EPDM has good compatibility with ethylene glycol solution, and its molecular structure ensures that the elasticity is second only to natural rubber and butadiene rubber, which is sufficient to ensure the elasticity requirements of the filling process; at the same time, compared with natural rubber, it has excellent strength characteristics, aging resistance, corrosion resistance, etc., and has a long service life. Cloth-reinforced rubber can ensure good material strength and flexibility, and can also ensure good compatibility between the material and the medium. The flexible diaphragm is sealed and connected to the air cavity portion 5 on the periphery. Specifically, the flexible diaphragm is embedded in the air cavity portion 5.

[0042] like Figure 4 As shown, the pressurizing unit includes a pressurized gas cylinder 7; a pressure reducing valve is provided at the bottle mouth of the pressurized gas cylinder 7; and the other end of the pressure reducing valve is connected to the gas cavity part 5 through a pipeline.

[0043] The vacuum port 11 on the top of the storage tank 1 is convenient for degassing the upper part of the liquid cavity of the storage tank 1. A vacuum port is designed at the bottom of the storage tank 1 to ensure that the lower part of the gas cavity of the storage tank 1 is vacuumed. At the same time, a working fluid outlet 12 is designed at the top of the storage tank 1 for external filling. The vacuum port 11 is connected to a vacuum pump. A vacuum flange interface is reserved at the vacuum port 11 on the storage tank cover, and a manual stop valve is installed. The vacuum pump is connected through the manual stop valve to achieve vacuuming of the liquid cavity and degassing of the working fluid. The gas cavity and liquid cavity of the storage tank can be vacuumed, and the vacuum degree can reach 50Pa. The measurement range of the vacuum gauge is 0 to 1 atmosphere, and the accuracy requirement is not less than 50Pa in the range of 50Pa to 1000Pa (if a vacuum pressure gauge is selected, the range is -100kPa to 0 and the accuracy is 0.5).

[0044] The working fluid outlet 12 is equipped with a filling wrench to realize the filling and output of the working fluid. The working fluid outlet 12 is also equipped with a liquid filter to prevent impurities from flowing into the rear end flow meter, and is arranged on the storage tank 1 for easy replacement and cleaning.

[0045] Embodiment 2:

[0046] The utility model also provides a tank system capable of pressurizing the working medium, such as Figure 1 and Figure 2 As shown, it includes a filling operation platform and a storage tank that can pressurize the working medium; the filling operation platform is electrically connected to the storage tank 1 and the pressurizing unit of the storage tank respectively.

[0047] The tank system is used to weigh the weight of the medium during the filling process, and the electronic scale 9 measures the value to calculate the propellant filling amount to ensure that the filling parameters meet the filling task requirements. It can facilitate the injection of working fluid, store the working fluid, and measure the working fluid mass, with a measurement accuracy of no less than 50g.

[0048] The tank system includes a tank, an electronic scale 9 and connecting pipes. Its main function is to complete the storage of working fluid and the storage of pressurized nitrogen. It is used to weigh the weight of the working fluid during the filling process. During the filling process, the electronic scale 9 monitors the weight change in real time, and calculates the filling amount of the cooling medium by weight to ensure the accuracy of the cooling medium filling and ensure that the filling parameters meet the filling task requirements. In this embodiment, the working fluid is ethylene glycol circulating coolant.

[0049] like Figure 3 and Figure 4 As shown, the filling operation table and the lower part of the tank are provided with mobile units respectively. The tank system is designed as a cart 8 structure, which is used to place the electronic scale 9 and the tank. The size is about 730×550×1150 (mm). Two fixed casters and two movable casters are provided at the bottom to facilitate the movement of the equipment.

[0050] The storage tank system consists of a cart 8, a storage tank and an electronic scale 9. The cart 8 is used as a load-bearing component to place the storage tank, the electronic scale 9 and other components, and casters are arranged at the bottom for easy movement and use; the diaphragm installed in the storage tank 1 of the storage tank separates the storage tank 1 into two independent upper and lower layers, and the filling of the working fluid can be achieved by respectively evacuating and pressurizing the upper and lower layers; the electronic scale 9 is placed at the bottom of the storage tank 1 to display the weight change of the storage tank 1 in real time; the pressurizing unit of the storage tank is a 12L nitrogen bottle equipped with a bottle mouth valve, which is placed on the cart 8 and is used to provide a gas source for the internal circuit filling equipment.

[0051] In the storage box system, the storage tank 1 is provided with four gas / liquid circuit interfaces, namely, a working fluid inlet 10, a working fluid outlet 12, a vacuum port 11 and a vacuum port 11 at the lower end of the storage tank 1, wherein the working fluid outlet 12, the vacuum port 11 and the vacuum port 11 at the upper end of the storage tank 1 and the vacuum port 11 at the lower end of the storage tank 1 can be connected to the filling console by using a hose, and the working fluid inlet 10 at the upper end of the storage tank 1 is connected to the filling working fluid barrel; the nitrogen bottle mouth valve is provided with an air circuit interface, which is connected to the filling console.

[0052] The matching filling electronic scale 9 uses the electronic scale 9 of Mettler-Toledo (Changzhou) Weighing Equipment System Co., Ltd.; this type of electronic scale 9 adopts a brand-new weighing platform, equipped with a high-precision weighing sensor and a high-precision weighing instrument, with a division number of up to 6000, high accuracy, fast weighing, stable and reliable operation, and simple installation and maintenance.

[0053] The detailed indicators of high-precision electronic scale 9 are as follows:

[0054] Model: WS150L, ​​display instrument IND560P1;

[0055] Range: 150kg;

[0056] Accuracy: 50g (the task book requires 50g);

[0057] Scale body material: stainless steel table, other carbon steel;

[0058] Weighing platform size: 0.45m×0.55m, can be customized according to needs;

[0059] Scale height: 125mm;

[0060] Display instrument material: stainless steel housing;

[0061] Communication interface: ProfibusDP;

[0062] Communication cable: CB-5m shielded signal cable.

[0063] The high-precision electronic scale 9 communicates with the control module through the ProfibusDP communication interface. The advantages of using the ProfibusDP communication interface for communication are fast communication speed, long transmission distance, strong anti-interference ability, and the display value of the electronic scale 9 display instrument is consistent with the computer display of the control module; at the same time, even if the computer fails during the filling process, it will not affect the execution of the automatic control process being executed.

[0064] The electronic scale head can be removed and placed on the front panel of the device for easy display.

[0065] The tank system is equipped with two electrical interfaces, namely the electronic scale 9 power interface and the electronic scale 9 communication interface, which are connected to the 220VAC mains and the electronic scale 9 communication interface at the rear of the filling console. Finally, the electronic scale 9 instrument (7-inch touch screen) in the filling console can be displayed and controlled in real time (peeling and zeroing).

[0066]

[0067] Tank system principle:

[0068] The tank system is used to weigh the weight of the working fluid during the filling process. During the filling process, the electronic scale 9 monitors the weight change in real time, and calculates the filling amount of the working fluid by weight to ensure the accuracy of the working fluid filling.

[0069] In principle, the tank system is divided into two parts: the gas source system and the filling system.

[0070] The gas source system mainly provides 15MPa high-pressure nitrogen for the nitrogen cylinder. The nitrogen cylinder is equipped with a cylinder valve and needs to be inflated before filling.

[0071] The filling system mainly monitors the weight change of the storage tank in real time through the electronic scale 9. The storage tank 1 on the electronic scale 9 is entrained with a diaphragm to separate the storage tank 1 into two independent upper and lower layers. The working fluid can be filled by respectively evacuating and pressurizing the upper and lower layers.

[0072] An 80um liquid filter is installed at the working fluid outlet 12 at the upper end of the storage tank 1 to prevent impurities from flowing into the rear-end flow meter. The arrangement on the storage tank 1 is also convenient for replacement and cleaning.

[0073] The present application solves the working fluid storage function and working fluid pressurization function in the vacuum pressurization and filling method, and can realize the vacuum pumping function in conjunction with the vacuum pump. It has strong usage functions and can better realize the main steps of the vacuum pressurization and filling method.

[0074] During the filling process of the inner loop, the working fluid is injected into the liquid chamber of the accumulator in the closed pipeline, causing the flexible diaphragm to produce elastic deformation and store elastic potential energy. The generated initial pressure provides a stable inlet pressure for the subsequent operation of the loop pump. The filling process controls the filling pressure, which is related to whether the loop working fluid can be effectively filled, and thus affects the stable operation of the loop. The control of the filling pressure must achieve self-priming and fill the working fluid to avoid the generation of cavities. Taking the manned spacecraft as an example, the height difference between the filling console pressure gauge (tank air chamber pressure) and the highest end of the hydraulic circuit is about 4.5m, which is converted into a pressure difference of 0.046MPa. Therefore, the filling pressure needs to be higher than this pressure, and the pressure at the bottom of the tank needs to be adjusted to above 0.046MPa to ensure that the absolute pressure of each part of the hydraulic circuit after the working fluid is filled is higher than the atmospheric pressure.

[0075] Secondly, under the premise of ensuring that the working fluid fills the pipeline, the filling pressure P required by the accumulator can be controlled by adjusting the air cavity pressure at the bottom of the storage tank according to the initial pressure requirement of the flexible diaphragm and the height difference between the pressure gauge and the flexible diaphragm.

[0076] During the refueling process of the manned spacecraft and the three cabins of the space station, the pump inlet pressure near the flexible diaphragm is adjusted by filling the tank, and parameters such as the tank weight are monitored in real time. The pump inlet pressure is fine-tuned by controlling the air cavity pressure at the bottom of the tank to ensure that the filling pressure reaches 163±3kPa.

[0077] There is a similar storage tank in the prior art filling, but the gas-liquid cavity of the storage tank is not separated, the pressurized gas filling port is set above the storage tank, and the liquid outlet is at the bottom of the storage tank, resulting in nitrogen dissolving in the working fluid during filling and pressurization after vacuum degassing, resulting in the actual quality of vacuum degassing being out of control.

[0078] This embodiment is improved on the basis of the original storage box, and has a gas-liquid separation function, and at the same time has detection functions such as liquid level and working fluid weight, and a vacuum port 11 is reserved, which can realize vacuum degassing of the working fluid in cooperation with a vacuum pump.

[0079] A tank system capable of pressurizing a working fluid in this embodiment includes a tank, a pressurized gas cylinder 7, an electronic scale 9, and a connecting pipeline housing. The main function is to complete the storage and pressurization of the working fluid, and to monitor the weight change during the filling process. The pressurized gas cylinder 7 is filled with high-pressure nitrogen. The tank is provided with a flexible diaphragm, which separates the tank into two independent upper and lower layers. The upper layer is a liquid cavity, and the lower layer is an air cavity. The tank air cavity is connected to the pressurized gas cylinder 7, and the working fluid can be pushed upward by ventilating and pressurizing the air cavity to achieve pressurization and external filling of the working fluid. The tank liquid cavity is equipped with a transparent observation window 6, which can be used to observe the liquid level change of the working fluid in the tank during the filling process. The pressurized gas cylinder 7 is provided with a pressure reducing valve for adjusting the pressurization pressure during the filling process. The filling pressure can be adjusted according to the needs of the pressurized pipeline. The tank is placed on the electronic scale 9, which can realize real-time monitoring of the weight change during the filling process. The external filling amount of the working fluid can be calculated by the weight change to ensure the accuracy of the filling of the working fluid.

[0080] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A storage tank capable of pressurizing a working fluid, characterized in that: It comprises a storage tank (1) and a pressurizing unit; A soft bag (2) is arranged inside the storage tank (1), and the soft bag (2) divides the storage tank (1) into a liquid cavity located at the upper side and an air cavity located at the lower side; A vacuum port (11), a working fluid inlet (10) and a working fluid outlet (12) are provided on the upper side of the liquid chamber, and the vacuum port (11), the working fluid inlet (10) and the working fluid outlet (12) all have a closed structure; The lower side of the air cavity is connected with a pressurizing unit; The liquid chamber is in a vacuum state.

2. A storage tank capable of pressurizing a working medium according to claim 1, characterized in that: The storage tank (1) comprises a storage tank cover (3), a liquid cavity portion (4) and an air cavity portion (5); The liquid cavity portion (4) is an annular structure; The air cavity portion (5) is an inverted cover-shaped structure; The storage tank cover (3), the liquid cavity portion (4) and the gas cavity portion (5) are arranged from top to bottom and are coaxially and sequentially sealed and connected; The soft capsule (2) is installed at a connection position between the air cavity portion (5) and the liquid cavity portion (4); The pressurizing unit is connected to a side of the air cavity portion (5) away from the liquid cavity portion (4).

3. A storage tank capable of pressurizing a working medium according to claim 2, characterized in that: A transparent observation window (6) is installed on the liquid chamber portion (4).

4. A storage tank capable of pressurizing a working medium according to claim 2, characterized in that: The soft capsule (2) comprises a flexible membrane; The peripheral side of the flexible diaphragm is sealed and connected to the air cavity portion (5).

5. A storage tank capable of pressurizing a working medium according to claim 4, characterized in that: The main body of the flexible diaphragm is cloth-reinforced rubber, and the surface material is EPDM rubber.

6. A storage tank capable of pressurizing a working medium according to claim 2, characterized in that: The pressurizing unit comprises a pressurizing gas cylinder (7); The mouth of the pressurized gas cylinder (7) is provided with a pressure reducing valve; The other end of the pressure reducing valve is in communication with the air cavity portion (5) via a pipeline.

7. A storage tank capable of pressurizing a working medium according to claim 1, characterized in that: The vacuum port (11) is connected to a vacuum pump.

8. A storage tank capable of pressurizing a working medium according to claim 1, characterized in that: The working fluid outlet (12) is equipped with a filling wrench.

9. A tank system capable of pressurizing a working fluid, characterized in that: It comprises a filling operation platform and a storage tank capable of pressurizing a working medium as claimed in any one of claims 1 to 8; The filling operation platform is electrically connected to the storage tank (1) and the pressurizing unit of the storage box respectively.

10. A tank system capable of pressurizing a working medium according to claim 9, characterized in that: The filling operation platform and the lower part of the tank are respectively provided with moving units.

Images