Natural gas hydrate high-pressure collection and storage device

Abstract

The invention discloses a natural gas hydrate high-pressure collection and storage device which comprises a storage cabinet, a storage frame, a storage vertical tank, a cold and hot assembly, a thermoelectric power generation recovery component, a high-pressure pipe, a sealing assembly and a controller, and the storage frame is fixedly installed in the storage cabinet. In the natural gas hydrate manufacturing process, the stability of the natural gas hydrate is maintained, and in the natural gas hydrate heating and releasing process, the temperature difference power generation technology is adopted, and electric energy is generated between the interior and the exterior of the storage vertical tank through the temperature difference between the hot box and the cold box; according to the specific implementation mode, through temperature difference changes among elements of an arc disc cold end, an arc disc hot end, a first plate-shaped cold end, a first plate-shaped hot end, a second plate-shaped cold end and a second plate-shaped hot end, when the elements are matched with the state of a hydrate, a thermoelectric module converts the temperature difference into electric energy to be recycled; according to the technology, energy recovery can be achieved through the temperature difference power generation module between the low-temperature environment and the high-temperature environment, and the energy utilization rate is greatly increased.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage, and in particular to a natural gas hydrate high-pressure collection and storage device. Background Art

[0002] As a potential clean energy source, the efficient and safe collection and storage of natural gas hydrate is of great significance for the optimization of future energy structure. However, the existing natural gas hydrate high-pressure collection and storage devices have some significant shortcomings in practical applications, especially in the use of internal temperature differences for thermoelectric power generation, which not only wastes precious thermal energy resources, but also limits the overall efficiency and sustainability of the system.

[0003] Current natural gas hydrate collection and storage devices mainly focus on how to ensure the stable storage of hydrates at room temperature to prevent them from decomposing and releasing methane gas due to rising external temperatures. These devices usually rely on a high-pressure environment to maintain the physical form of the hydrates and use insulation materials to reduce the impact of external heat on the internal environment. Although this method can achieve safe storage of hydrates to a certain extent, it ignores the possibility of energy recovery by using the temperature gradient maintained internally. This defect means that a large amount of latent heat generated by the phase change process and waste heat generated during the operation of the equipment itself are wasted and not effectively reused.

[0004] When natural gas hydrates are collected from the seabed and stored in high-pressure containers, a significant temperature gradient is formed inside the container due to the low external ambient temperature and the internal phase change process and equipment operation that generates a certain amount of heat. This temperature difference can theoretically be used to drive thermoelectric conversion devices, such as thermoelectric batteries or other forms of energy recovery systems. However, existing technologies do not fully utilize this, resulting in a large amount of heat energy being wasted during equipment operation and failing to be converted into useful electrical output. In addition, due to the lack of thermoelectric power generation design, temperature management in the storage tank relies more on active refrigeration or heating systems, increasing energy consumption and operating costs.

[0005] The failure to effectively utilize the temperature difference maintained inside the collection and storage device to generate electricity reflects the current technology's inadequate consideration of comprehensive energy utilization. Against the backdrop of the growing global demand for clean energy, the development of any renewable energy should strive to maximize the energy potential in every link. If the temperature difference power generation technology can be cleverly combined, it can not only improve the self-sufficiency of the entire system and reduce dependence on external power sources, but also provide additional power support for other auxiliary systems (such as monitoring, control, etc.), thereby enhancing the flexibility and reliability of the system.

[0006] Therefore, how to provide a high-pressure collection and storage device for natural gas hydrates is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0007] One object of the present invention is to provide a high-pressure collection and storage device for natural gas hydrates. In the process of making natural gas hydrates, the present invention maintains the stability of natural gas hydrates. In the process of heating and releasing natural gas hydrates, the temperature difference power generation technology is adopted to generate electric energy between the inside and outside of the storage tank through the temperature difference between the hot box and the cold box; the specific implementation method is to change the temperature difference between the components of the arc disk cold end, the arc disk hot end, the first plate-shaped cold end, the first plate-shaped hot end, the second plate-shaped cold end and the second plate-shaped hot end. While these components cooperate with the state of the hydrate, the thermoelectric module converts the temperature difference into electric energy for recovery; this technology can realize energy recovery through the temperature difference power generation module between low temperature and high temperature environments, greatly improving energy utilization.

[0008] When the present invention accurately controls the temperature inside the vertical storage tank by cold wind, the arc disk cold end is intermittently opened, and the arc disk cold end and the first plate-shaped hot end cooperate to generate electricity by temperature difference. At the same time, the arc disk cold end releases heat to increase the temperature inside the vertical storage tank, thereby preventing the temperature from being too low and deviating from the preset data; the arc disk hot end and the first plate-shaped cold end simultaneously form temperature difference power generation, and the arc disk hot end is intermittently opened, and the arc disk hot end absorbs heat, thereby preventing the temperature inside the vertical storage tank from being too high and the natural gas from being released unevenly.

[0009] The present invention designs a multi-stage sealing component, including a sealing cover, a sealing ring, a sealing valve ball, etc. These components help ensure the sealing of the high-pressure pipe connection to avoid natural gas leakage or failure.

[0010] The cold air main pipe and the hot air main pipe of the present invention transport cold and hot gases, and ensure the precise flow of cold air and hot air through the gas transfer pipe system, which effectively promotes the temperature control inside the storage tank; at the same time, heat can be recovered through external pipes, reducing the system's dependence on external energy; the design of the storage tank is modular, and the temperature-averaging straight pipe and temperature-averaging curved pipe help maintain the temperature balance of the internal gas and water, avoiding the problem of local overcooling or overheating; the circulating gas channel further enhances the control ability of gas flow and temperature balance, ensuring the stability of stored hydrates.

[0011] A natural gas hydrate high-pressure collection and storage device according to an embodiment of the present invention comprises a storage cabinet, a storage rack, a storage tank, a cold and hot assembly, a temperature difference power generation recovery component, a high-pressure pipe, a sealing assembly and a controller, wherein the storage rack is fixedly installed inside the storage cabinet, the storage tank is fixedly installed on four sides of the storage rack, the cold and hot assembly is fixedly installed on the inner bottom of the storage cabinet, the temperature difference power generation recovery component is fixedly installed on the storage tank, the temperature difference power generation recovery component is fixedly installed in the cold and hot assembly, the high-pressure pipe is fixedly installed on both sides of the top of the storage tank, the sealing assembly is fixedly installed inside the high-pressure pipe, and the controller is fixedly installed on the outer surface of the storage cabinet;

[0012] The hot and cold assembly includes a hot box, a semiconductor refrigeration sheet group and a cold box, wherein the bottom of the hot box is fixedly mounted on the inner bottom of the storage cabinet, the bottom of the semiconductor refrigeration sheet group is fixedly mounted on the top of the hot box, and the bottom of the cold box is fixedly mounted on the top of the semiconductor refrigeration sheet group;

[0013] The temperature difference power generation recovery component includes a circular temperature difference power generation component, a plate temperature difference power generation component and a temperature difference component. The circular temperature difference power generation component is fixedly installed on the inner top of the storage tank, the plate temperature difference power generation component is fixedly installed in the cold and hot component, and the temperature difference component is fixedly installed on the bottom of the storage tank;

[0014] The circular temperature difference power generation assembly comprises an arc disk cold end and an arc disk hot end, and the inner wall of the arc disk cold end is fixedly sleeved on the outer wall of the arc disk hot end;

[0015] The plate-shaped temperature difference power generation component includes a first plate-shaped cold end and a first plate-shaped hot end. The first plate-shaped cold end is fixedly installed on the inner top of the cold box, and the first plate-shaped hot end is fixedly installed on the inner bottom of the hot box.

[0016] Further, hinges are fixedly arranged on both sides of the front end of the storage cabinet, a split door panel is rotatably arranged on the front end of the storage cabinet, the split door panel is fixedly mounted on the hinges, and a sliding door handle is fixedly arranged on the outer wall of the split door panel;

[0017] A ventilation hole is provided in the middle of the storage rack;

[0018] A touch screen is fixedly arranged on the outer wall of the controller.

[0019] Furthermore, a first air inlet pipe is fixedly arranged on the top of the storage tank, a circulating air channel is opened in the tank wall of the storage tank, a temperature-averaging straight pipe is fixedly arranged on the inner wall of the storage tank, a temperature-averaging curved pipe is fixedly arranged on the inner bottom of the storage tank, and a recovery box is fixedly arranged on the bottom of the storage tank;

[0020] The temperature difference assembly comprises a cold transfer box and a hot transfer box. The cold transfer box is fixedly installed on the inner bottom of the recovery box, and the hot transfer box is fixedly installed on the inner top of the recovery box.

[0021] Furthermore, the hot and cold assembly also includes a mounting frame, an air pump, a second air inlet pipe, an air filter pipe, a third air inlet pipe and a first electric air valve, wherein the bottom of the mounting frame is fixedly mounted on the inner bottom of the storage cabinet, the top of the mounting frame is fixedly sleeved on the semiconductor refrigeration plate group, the pump seat of the air pump is fixedly mounted on the inner bottom of the storage cabinet, one end of the second air inlet pipe is fixedly mounted on the air pump, one end of the air filter pipe is fixedly mounted on the other end of the second air inlet pipe, the other end of the air filter pipe extends out of the storage cabinet, one end of the third air inlet pipe is fixedly mounted on the air pump, the other end of the third air inlet pipe is fixedly mounted on the hot box and the cold box, and the first electric air valve is fixedly mounted on one end of the third air inlet pipe close to the hot box and the cold box.

[0022] Furthermore, the hot and cold components also include a hot air main pipe, a hot air branch pipe, a second electric gas valve, a cold air main pipe, a cold air branch pipe, a third electric gas valve and an air transfer pipe, wherein one end of the hot air main pipe is fixedly installed on the hot box, and the other end of the hot air main pipe extends out of the storage cabinet, one end of the hot air branch pipe is fixedly installed on the hot air main pipe, and the other end of the hot air branch pipe is fixedly installed on the bottom of the air transfer pipe, two second electric gas valves are provided, and the two second electric gas valves are respectively fixedly installed on the hot air main pipe and the hot air branch pipe, one end of the cold air main pipe is fixedly installed on the cold box, one end of the cold air main pipe is located in the storage cabinet, one end of the cold air branch pipe is fixedly installed on the cold air main pipe, the other end of the cold air branch pipe is fixedly installed on the bottom of the air transfer pipe, and the top of the air transfer pipe is fixedly installed on the first air inlet pipe.

[0023] Furthermore, the circular temperature difference power generation component includes a temperature difference metal rod, an insulating rubber layer, a temperature difference metal sleeve frame and a temperature difference connecting rod, wherein the outer wall of the temperature difference metal rod is fixedly inserted on the hot end of the arc disk, the inner wall of the insulating rubber layer is fixedly installed on the outer wall of the top of the temperature difference metal rod, the bottom of the temperature difference metal sleeve frame is fixedly inserted on the cold end of the arc disk, the inner wall of the top of the temperature difference metal sleeve frame is fixedly sleeved on the insulating rubber layer, and the temperature difference connecting rod is fixedly installed on the top of the temperature difference metal sleeve frame.

[0024] Furthermore, the plate-shaped temperature difference power generation component also includes a second plate-shaped cold end, a second plate-shaped hot end and a thermal conduction plate. The second plate-shaped cold end is fixedly installed inside the cold transfer box, the second plate-shaped hot end is fixedly installed inside the thermal transfer box, and the bottom of the thermal conduction plate is fixedly installed on the first plate-shaped cold end, the first plate-shaped hot end, the second plate-shaped cold end and the top of the second plate-shaped hot end.

[0025] Furthermore, the temperature difference component includes a switching air pipe, a temperature sensor, a hot air inlet pipe for air conversion, a cold air inlet pipe for air conversion, a fourth electric air valve, a hot air exhaust pipe for air conversion and a cold air exhaust pipe for air conversion, wherein the top of the switching air pipe is fixedly installed on the bottom of the storage tank, the temperature sensor is fixedly installed on the switching air pipe, one end of the hot air inlet pipe for air conversion is fixedly installed on the switching air pipe, the other end of the hot air inlet pipe for air conversion is fixedly installed on the heat transfer box, one end of the cold air inlet pipe for air conversion is fixedly installed on the switching air pipe, the other end of the cold air inlet pipe for air conversion is fixedly installed on the cold transfer box, the fourth electric air valve is fixedly installed on the hot air inlet pipe and the cold air inlet pipe, one end of the hot air exhaust pipe for air conversion is fixedly installed on the hot transfer box, the other end of the hot air exhaust pipe for air conversion extends out of the storage cabinet, one end of the cold air exhaust pipe for air conversion is fixedly installed on the cold transfer box, and the other end of the cold air exhaust pipe for air conversion is located in the storage cabinet.

[0026] Furthermore, the sealing assembly includes a sealing cover, a sealing ring, a sealing valve ball, a sealing spring and a spring seat plate, wherein the sealing cover is threadedly mounted on the top of the high-pressure pipe, the sealing ring is fixedly mounted on the inner wall of the high-pressure pipe, the sealing valve ball is fixedly mounted on the top of the sealing spring, the bottom of the sealing spring is fixedly mounted on the spring seat plate, and the spring seat plate is fixedly mounted on the inner wall of the high-pressure pipe.

[0027] Furthermore, the sealing assembly also includes a breathable arc ring, a sealing plate, a tension spring, a stop rod and a switch valve, wherein the breathable arc ring is fixedly mounted on the inner wall of the high-pressure pipe, the sealing plate is fixedly mounted on one end of the tension spring, the other end of the tension spring is fixedly mounted on the breathable arc ring, the bottom of the stop rod is fixedly mounted on the sealing plate, and the switch valve is fixedly mounted on the high-pressure pipe.

[0028] The beneficial effects of the present invention are:

[0029] The present invention maintains the stability of natural gas hydrates during the process of making natural gas hydrates, and adopts temperature difference power generation technology during the process of heating and releasing natural gas hydrates. Electric energy is generated between the inside and outside of the storage tank through the temperature difference between the hot box and the cold box. The specific implementation method is to change the temperature difference between the components of the arc disk cold end, the arc disk hot end, the first plate-shaped cold end, the first plate-shaped hot end, the second plate-shaped cold end and the second plate-shaped hot end. While these components cooperate with the state of the hydrate, the thermoelectric module converts the temperature difference into electric energy for recovery. This technology can realize energy recovery through the temperature difference power generation module between low temperature and high temperature environments, greatly improving energy utilization.

[0030] When the present invention accurately controls the temperature inside the vertical storage tank by cold wind, the arc disk cold end is intermittently opened, and the arc disk cold end and the first plate-shaped hot end cooperate to generate electricity by temperature difference. At the same time, the arc disk cold end releases heat to increase the temperature inside the vertical storage tank, thereby preventing the temperature from being too low and deviating from the preset data; the arc disk hot end and the first plate-shaped cold end simultaneously form temperature difference power generation, and the arc disk hot end is intermittently opened, and the arc disk hot end absorbs heat, thereby preventing the temperature inside the vertical storage tank from being too high and the natural gas from being released unevenly.

[0031] The present invention designs a multi-stage sealing component, including a sealing cover, a sealing ring, a sealing valve ball, etc. These components help ensure the sealing of the high-pressure pipe connection to avoid natural gas leakage or failure.

[0032] The cold air main pipe and the hot air main pipe of the present invention transport cold and hot gases, and ensure the precise flow of cold air and hot air through the gas transfer pipe system, which effectively promotes the temperature control inside the storage tank; at the same time, heat can be recovered through external pipes, reducing the system's dependence on external energy; the design of the storage tank is modular, and the temperature-averaging straight pipe and temperature-averaging curved pipe help maintain the temperature balance of the internal gas and water, avoiding the problem of local overcooling or overheating; the circulating gas channel further enhances the control ability of gas flow and temperature balance, ensuring the stability of stored hydrates. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0034] Figure 1 This is a schematic diagram of the overall structure of a natural gas hydrate high-pressure collection and storage device proposed by the present invention;

[0035] Figure 2 A schematic diagram of the structure of a storage rack of a natural gas hydrate high-pressure collection and storage device proposed by the present invention;

[0036] Figure 3 A cross-sectional view of a storage tank of a natural gas hydrate high-pressure collection and storage device proposed by the present invention;

[0037] Figure 4 A natural gas hydrate high-pressure collection and storage device proposed by the present invention Figure 3 A magnified image of point A;

[0038] Figure 5 A natural gas hydrate high-pressure collection and storage device proposed by the present invention Figure 3 Enlarge the B point;

[0039] Figure 6 A natural gas hydrate high-pressure collection and storage device proposed by the present invention Figure 3 Enlarge the C of the

[0040] Figure 7 A natural gas hydrate high-pressure collection and storage device proposed by the present invention Figure 3 Enlarge the D of the

[0041] Figure 8 This is a schematic structural diagram of an air pump for a natural gas hydrate high-pressure collection and storage device proposed by the present invention.

[0042] In the figure: 1. Storage cabinet; 1.1. Hinge; 1.2. Double door panel; 1.3. Door handle; 2. Storage rack; 2.1. Air vent; 3. Storage tank; 3.1. First air inlet pipe; 3.2. Circulating air channel; 3.3. Temperature equalizing straight pipe; 3.4. Temperature equalizing curved pipe; 3.5. Recovery box; 4. Hot and cold components; 4.1. Hot box; 4.2. Semiconductor refrigeration unit; 4.3. Cold box; 4.4. Mounting rack; 4.5. Air pump; 4.6. Second Inlet pipe; 4.7, filter pipe; 4.8, third air inlet pipe; 4.9, first electric valve; 4.10, hot air main pipe; 4.11, hot air branch pipe; 4.12, second electric valve; 4.13, cold air main pipe; 4.14, cold air branch pipe; 4.15, third electric valve; 4.16, gas transfer pipe; 5, temperature difference power generation recovery component; 6, high pressure pipe; 7, sealing assembly; 7.1, sealing cover; 7.2, sealing ring; 7.3, sealing valve ball ; 7.4, sealing spring; 7.5, spring seat plate; 7.6, breathable arc ring; 7.7, sealing plate; 7.8, stretch spring; 7.9, stop rod; 8, controller; 8.1, touch screen; 9, circular temperature difference power generation component; 9.1, arc disk cold end; 9.2, arc disk hot end; 9.3, temperature difference metal rod; 9.4, insulating rubber layer; 9.5, temperature difference metal sleeve; 9.6, temperature difference connecting rod; 10, plate-shaped temperature difference power generation component; 10.1, first Plate-shaped cold end; 10.2, first plate-shaped hot end; 10.3, second plate-shaped cold end; 10.4, second plate-shaped hot end; 10.5, temperature conducting plate; 11, temperature difference assembly; 11.1, cold transfer box; 11.2, hot transfer box; 11.3, switching air pipe; 11.4, temperature sensor; 11.5, switching air hot inlet pipe; 11.6, switching air cold inlet pipe; 11.7, fourth electric air valve; 11.8, switching air hot exhaust pipe; 11.9, switching air cold exhaust pipe. DETAILED DESCRIPTION

[0043] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0044] Please refer to Figures 1 to 8The present invention provides a natural gas hydrate high-pressure collection and storage device, comprising a storage cabinet 1, a storage rack 2, a storage tank 3, a cold and hot component 4, a temperature difference power generation recovery component 5, a high-pressure pipe 6, a sealing component 7 and a controller 8, wherein the storage rack 2 is fixedly installed inside the storage cabinet 1, the storage tank 3 is fixedly installed on the four sides of the storage rack 2, a plurality of accessories for detecting temperature are arranged inside the storage tank 3, the cold and hot component 4 is fixedly installed on the inner bottom of the storage cabinet 1, the temperature difference power generation recovery component 5 is fixedly installed on the storage tank 3, the temperature difference power generation recovery component 5 is fixedly installed inside the cold and hot component 4, the high-pressure pipe 6 is fixedly installed on both sides of the top of the storage tank 3, the sealing component 7 is fixedly installed inside the high-pressure pipe 6, and the controller 8 is fixedly installed on the outer surface of the storage cabinet 1; the temperature difference power generation recovery component 5 comprises a circular temperature difference power generation component 9, a plate temperature difference power generation component 10 and a temperature difference component 11, the circular temperature difference power generation component 9 is fixedly installed on the inner top of the storage tank 3, the plate temperature difference power generation component 10 is fixedly installed in the cold and hot component 4, and the temperature difference component 11 is fixedly installed on the bottom of the storage tank 3.

[0045] Hinges 1.1 are fixedly provided on both sides of the front end of the storage cabinet 1, and a double-door panel 1.2 is rotatably provided at the front end of the storage cabinet 1, and the double-door panel 1.2 is fixedly installed on the hinge 1.1, and a sliding door handle 1.3 is fixedly provided on the outer wall of the double-door panel 1.2; an air vent 2.1 is provided in the middle position of the storage rack 2; a touch screen 8.1 is fixedly provided on the outer wall of the controller 8, a first air inlet pipe 3.1 is fixedly provided on the top of the storage tank 3, a circulating air channel 3.2 is provided in the tank wall of the storage tank 3, a temperature-averaging straight pipe 3.3 is fixedly provided on the inner wall of the storage tank 3, a temperature-averaging curved pipe 3.4 is fixedly provided on the inner bottom of the storage tank 3, and a recovery box 3.5 is fixedly provided on the bottom of the storage tank 3.

[0046] Specifically, the hot and cold assembly 4 includes a hot box 4.1, a semiconductor refrigeration sheet group 4.2 and a cold box 4.3, wherein the bottom of the hot box 4.1 is fixedly mounted on the inner bottom of the storage cabinet 1, the bottom of the semiconductor refrigeration sheet group 4.2 is fixedly mounted on the top of the hot box 4.1, and the bottom of the cold box 4.3 is fixedly mounted on the top of the semiconductor refrigeration sheet group 4.2. The hot and cold assembly 4 also includes a mounting frame 4.4, an air pump 4.5, a second air inlet pipe 4.6, an air filter pipe 4.7, a third air inlet pipe 4.8 and a first electric air valve 4.9, wherein the bottom of the mounting frame 4.4 is fixedly mounted on the inner bottom of the storage cabinet 1, and the mounting frame 4.4 is fixedly mounted on the inner bottom of the storage cabinet 1. The top is fixedly sleeved on the semiconductor refrigeration plate group 4.2, the pump seat of the air pump 4.5 is fixedly installed on the inner bottom of the storage cabinet 1, one end of the second air inlet pipe 4.6 is fixedly installed on the air pump 4.5, one end of the air filter pipe 4.7 is fixedly installed on the other end of the second air inlet pipe 4.6, and the other end of the air filter pipe 4.7 extends out of the storage cabinet 1, one end of the third air inlet pipe 4.8 is fixedly installed on the air pump 4.5, and the other end of the third air inlet pipe 4.8 is fixedly installed on the hot box 4.1 and the cold box 4.3, and the first electric air valve 4.9 is fixedly installed on one end of the third air inlet pipe 4.8 close to the hot box 4.1 and the cold box 4.3.

[0047] The hot and cold assembly 4 further includes a hot air main pipe 4.10, a hot air branch pipe 4.11, a second electric air valve 4.12, a cold air main pipe 4.13, a cold air branch pipe 4.14, a third electric air valve 4.15 and an air transfer pipe 4.16, wherein one end of the hot air main pipe 4.10 is fixedly mounted on the hot box 4.1, and the other end of the hot air main pipe 4.10 extends out of the storage cabinet 1, one end of the hot air branch pipe 4.11 is fixedly mounted on the hot air main pipe 4.10, and the other end of the hot air branch pipe 4.11 is fixedly mounted on the bottom of the air transfer pipe 4.16, Two second electric gas valves 4.12 are provided, and the two second electric gas valves 4.12 are fixedly mounted on the hot gas main pipe 4.10 and the hot gas branch pipe 4.11 respectively. One end of the cold gas main pipe 4.13 is fixedly mounted on the cold box 4.3. One end of the cold gas main pipe 4.13 is located in the storage cabinet 1. One end of the cold gas branch pipe 4.14 is fixedly mounted on the cold gas main pipe 4.13. The other end of the cold gas branch pipe 4.14 is fixedly mounted on the bottom of the gas transfer pipe 4.16. The top of the gas transfer pipe 4.16 is fixedly mounted on the first air inlet pipe 3.1.

[0048] More specifically, the sealing assembly 7 includes a sealing cover 7.1, a sealing ring 7.2, a sealing valve ball 7.3, a sealing spring 7.4 and a spring seat plate 7.5, wherein the sealing cover 7.1 is threadedly mounted on the top of the high-pressure pipe 6, the sealing ring 7.2 is fixedly mounted on the inner wall of the high-pressure pipe 6, the sealing valve ball 7.3 is fixedly mounted on the top of the sealing spring 7.4, the bottom of the sealing spring 7.4 is fixedly mounted on the spring seat plate 7.5, and the spring seat plate 7.5 is fixedly mounted on the inner wall of the high-pressure pipe 6. The sealing assembly 7 also includes a breathable arc ring 7.6, a sealing plate 7.7, a tension spring 7.8, a stop rod 7.9 and a switch valve 7.10, wherein the breathable arc ring 7.6 is fixedly mounted on the inner wall of the high-pressure pipe 6, the sealing plate 7.7 is fixedly mounted on one end of the tension spring 7.8, the other end of the tension spring 7.8 is fixedly mounted on the breathable arc ring 7.6, the bottom of the stop rod 7.9 is fixedly mounted on the sealing plate 7.7, and the switch valve 7.10 is fixedly mounted on the high-pressure pipe 6

[0049] More specifically, the circular temperature difference power generation component 9 includes an arc disk cold end 9.1 and an arc disk hot end 9.2, the inner wall of the arc disk cold end 9.1 is fixedly sleeved on the outer wall of the arc disk hot end 9.2, and the circular temperature difference power generation component 9 includes a temperature difference metal rod 9.3, an insulating rubber layer 9.4, a temperature difference metal sleeve frame 9.5 and a temperature difference connecting rod 9.6, wherein the outer wall of the temperature difference metal rod 9.3 is fixedly inserted on the arc disk hot end 9.2, the inner wall of the insulating rubber layer 9.4 is fixedly installed on the outer wall of the top of the temperature difference metal rod 9.3, the bottom of the temperature difference metal sleeve frame 9.5 is fixedly inserted on the arc disk cold end 9.1, the inner wall of the top of the temperature difference metal sleeve frame 9.5 is fixedly sleeved on the insulating rubber layer 9.4, and the temperature difference connecting rod 9.6 is fixedly installed on the top of the temperature difference metal sleeve frame 9.5.

[0050] More specifically, the plate-shaped temperature difference power generation component 10 includes a first plate-shaped cold end 10.1 and a first plate-shaped hot end 10.2. The first plate-shaped cold end 10.1 is fixedly mounted on the inner top of the cold box 4.3, and the first plate-shaped hot end 10.2 is fixedly mounted on the inner bottom of the hot box 4.1. The plate-shaped temperature difference power generation component 10 also includes a second plate-shaped cold end 10.3, a second plate-shaped hot end 10.4 and a thermal conduction plate 10.5. The second plate-shaped cold end 10.3 is fixedly mounted inside the cold transfer box 11.1, and the second plate-shaped hot end 10.4 is fixedly mounted inside the hot transfer box 11.2. The bottom of the thermal conduction plate 10.5 is fixedly mounted on the top of each of the first plate-shaped cold end 10.1, the first plate-shaped hot end 10.2, the second plate-shaped cold end 10.3 and the second plate-shaped hot end 10.4.

[0051] More specifically, the temperature difference component 11 includes a cold transfer box 11.1 and a hot transfer box 11.2, the cold transfer box 11.1 is fixedly installed on the inner bottom of the recovery box 3.5, and the hot transfer box 11.2 is fixedly installed on the inner top of the recovery box 3.5. The temperature difference component 11 includes a switching air pipe 11.3, a temperature sensor 11.4, a hot air transfer pipe 11.5, a cold air transfer pipe 11.6, a fourth electric air valve 11.7, a hot air transfer pipe 11.8 and a cold air transfer pipe 11.9, wherein the top of the switching air pipe 11.3 is fixedly installed on the bottom of the storage tank 3, the temperature sensor 11.4 is fixedly installed on the switching air pipe 11.3, and one end of the hot air transfer pipe 11.5 is fixedly installed on the bottom of the storage tank 3. It is installed on the switching air pipe 11.3, the other end of the air conversion hot inlet pipe 11.5 is fixedly installed on the heat transfer box 11.2, one end of the air conversion cold inlet pipe 11.6 is fixedly installed on the switching air pipe 11.3, the other end of the air conversion cold inlet pipe 11.6 is fixedly installed on the cold transfer box 11.1, the fourth electric air valve 11.7 is fixedly installed on the air conversion hot inlet pipe 11.5 and the air conversion cold inlet pipe 11.6, one end of the air conversion hot exhaust pipe 11.8 is fixedly installed on the heat transfer box 11.2, the other end of the air conversion hot exhaust pipe 11.8 extends out of the storage cabinet 1, one end of the air conversion cold exhaust pipe 11.9 is fixedly installed on the cold transfer box 11.1, and the other end of the air conversion cold exhaust pipe 11.9 is located in the storage cabinet 1.

[0052] A certain amount of water is stored in the storage tank 3 through external equipment, and the storage tank 3 is cooled down to below 0°C, and the low-temperature water and high-pressure natural gas are mainly mixed with methane; when water and natural gas reach appropriate temperature and pressure conditions, the natural gas molecules will be surrounded by water molecules to form a stable hydrate structure; hydrate is a crystal structure in which water molecules are combined with natural gas molecules through hydrogen bonds to form a solid solid. Usually, the formation temperature of hydrates is below 0°C and the pressure needs to be relatively high, usually above 10MPa; once hydrates are formed, the device will continue to maintain a low temperature and high pressure environment to ensure the stable existence of hydrates; in this process, natural gas is "captured" in the hydrate, and can be thawed or depressurized to release natural gas when needed; during the storage process, the hydrate structure can effectively prevent the leakage or evaporation of natural gas, and at the same time, the recovery and utilization of natural gas can be achieved at low pressure.

[0053] Unscrew the sealing cover 7.1 and connect the externally connected water pipe and natural gas pipe to the high-pressure pipe 6. The externally connected water pipe and natural gas pipe press down the sealing valve ball 7.3 and compress the sealing spring 7.4. The water pressure flushes the sealing plate 7.7, and the sealing plate 7.7 stretches the tension spring 7.8. After the water enters the storage tank 3 first and reaches a certain equivalent, remove the externally connected water pipe, and the sealing valve ball 7.3 and the sealing plate 7.7 return to the sealed state under the action of the sealing spring 7.4 and the tension spring 7.8.

[0054] The semiconductor refrigeration sheet group 4.2 is started, and the cooling end of the semiconductor refrigeration sheet group 4.2 cools the cold box 4.3, and the heating end of the semiconductor refrigeration sheet group 4.2 heats the hot box 4.1. The air pump 4.5 is started, and the air pump 4.5 draws air from the outside through the second air inlet pipe 4.6 and the air filter pipe 4.7, and transmits the air to the hot box 4.1 and the cold box 4.3 through the third air inlet pipe 4.8 and the first electric air valve 4.9. The temperature of the hot box 4.1 and the cold box 4.3 affects the temperature of the air, and the storage tank 3 is cooled or heated by the flow of air.

[0055] When low-temperature water and high-pressure natural gas are mixed to form hydrates, the interior of the storage tank 3 needs to be refrigerated, and the temperature inside the storage tank 3 is reduced to below 0°C. The hot air main pipe 4.10 and the second electric gas valve 4.12 of the hot box 4.1 are opened to discharge the heat out of the storage cabinet 1, and the heat can be collected through the external connecting pipe for heat collection; the cold air main pipe 4.13, the cold air branch pipe 4.14 and the third electric gas valve 4.15 of the cold box 4.3 are opened, and the cold air enters the circulating air channel 3.2, the uniform temperature straight pipe 3.3 and the uniform temperature curved pipe 3.4 through the cold air main pipe 4.13, the cold air branch pipe 4.14, the gas transfer pipe 4.16 and the first air inlet pipe 3.1 to quickly cool the water inside the storage tank 3, and the cold air flows from the circulating air channel 3.2 to the switching air pipe 11.3, and the temperature sensor 11.4 detects the wind The temperature of the force is determined, and the fourth electric air valve 11.7 is opened in the corresponding pipeline, and the cold air enters the cold transfer box 11.1 through the air-cooling inlet pipe 11.6, and then is transported to the storage cabinet 1 through the air-cooling exhaust pipe 11.9 to cool the storage cabinet 1; a large temperature difference is formed between the first plate-shaped hot end 10.2 in the hot box 4.1 and the second plate-shaped cold end 10.3 in the cold transfer box 11.1, thereby generating electricity by temperature difference, and the first plate-shaped hot end 10.2 and the second plate-shaped cold end 10.3 generate electricity through the thermoelectric module in the controller 8, which can be recovered; when the cold air accurately controls the temperature inside the storage tank 3, the arc disk cold end 9.1 is intermittently opened, and the arc disk cold end 9.1 and the first plate-shaped hot end 10.2 cooperate with the temperature difference to generate electricity, and at the same time, the arc disk cold end 9.1 releases heat to increase the temperature inside the storage tank 3.

[0056] By connecting the external natural gas pipeline with the high-pressure pipe 6, natural gas is injected into the storage tank 3 to increase the gas pressure of the storage tank 3, promote the natural gas molecules to be surrounded by water molecules, and form a stable hydrate structure. After completion, the connection between the external natural gas pipeline and the high-pressure pipe 6 is removed.

[0057] When the hydrate in the vertical storage tank 3 is maintained stable, cold air is continuously sent into the vertical storage tank 3 .

[0058] When the hydrate is thawed and the natural gas is released, the external gas connection pipe is connected to the high-pressure pipe 6 to release the natural gas in the storage tank 3 and transport hot air to the storage tank 3. The hot air is uniformly heated from the heat box 4.1, the hot gas main pipe 4.10, the hot gas branch pipe 4.11, the second electric gas valve 4.12, the gas transfer pipe 4.16, the first air inlet pipe 3.1, the circulating gas channel 3.2, the uniform temperature straight pipe 3.3 and the uniform temperature curved pipe 3.4 to the storage tank 3. The third electric gas valve 4.15 of the cold air branch pipe 4.14 is closed, and the cold air enters the storage cabinet 1 from the cold air main pipe 4.13 to cool the storage cabinet 1. The storage tank 3 is heated, and the hydrate can be continuously decomposed to release natural gas. The hot air enters the switching air pipe 11.3 from the circulating air channel 3.2, the temperature sensor 11.4 detects the air temperature, the conversion air heat inlet pipe 11.5 is opened, and enters the conversion air heat exhaust pipe 11.8, the conversion air heat exhaust pipe 11.8 discharges the heat into the storage cabinet 1, and the conversion air heat exhaust pipe 11.8 is connected to the external pipeline to collect heat; the first plate-shaped cold end 10.1 of the cold box 4.3 and the second plate-shaped hot end 10.4 of the heat transfer box 11.2 form temperature difference power generation; the arc disk hot end 9.2 and the first plate-shaped cold end 10.1 simultaneously form temperature difference power generation, the arc disk hot end 9.2 is intermittently opened, and the arc disk hot end 9.2 absorbs heat to avoid the temperature in the storage tank 3 being too high and the natural gas release being uneven.

[0059] The invention adopts the temperature difference power generation technology, and generates electric energy between the inside and outside of the storage tank 3 through the temperature difference between the hot box 4.1 and the cold box 4.3; the specific implementation method is through the temperature difference change between the components of the arc disk cold end 9.1, the arc disk hot end 9.2, the first plate-shaped cold end 10.1, the first plate-shaped hot end 10.2, the second plate-shaped cold end 10.3 and the second plate-shaped hot end 10.4, these components convert the temperature difference into electric energy recovery through the thermoelectric module; this technology can realize energy recovery between low temperature and high temperature environments through the temperature difference power generation module, greatly improving energy utilization.

[0060] The invention controls the flow of air through the semiconductor refrigeration plate group 4.2 and the air pump 4.5 in the hot and cold component 4, thereby accurately regulating the temperature in the storage tank 3 to ensure the stable formation and storage of hydrates; by adjusting the temperature of the hot box 4.1 and the cold box 4.3, it not only helps to maintain the stability of the hydrate, but also ensures that the gas is captured and released under high pressure.

[0061] The invention designs a multi-stage sealing assembly 7, including a sealing cover 7.1, a sealing ring 7.2, a sealing valve ball 7.3, etc. These assemblies help ensure the sealing of the connection of the high-pressure pipe 6 to avoid natural gas leakage or failure.

[0062] During the storage of hydrates, the device precisely controls the temperature and pressure to ensure that the hydrates are stably present in the storage tank 3; when hydrates are formed, the natural gas molecules are surrounded by water molecules and solidified into crystals, thereby preventing gas leakage; when released, the natural gas is released from the hydrates through temperature control and the action of an external gas pipeline; this method improves the storage density and safety of natural gas.

[0063] The device utilizes the cold air main pipe 4.13 and the hot air main pipe 4.10 to transport the cold and hot gases, and ensures the accurate flow of cold and hot air through the gas transfer pipe 4.16 system, effectively promoting the temperature control inside the storage tank 3; at the same time, the heat can be recovered through the external pipeline, reducing the system's dependence on external energy.

[0064] The design of the storage tank 3 is modular, in which the temperature-averaging straight pipe 3.3 and the temperature-averaging curved pipe 3.4 help maintain the temperature balance of the internal gas and water to avoid local overcooling or overheating problems; the circulating gas channel 3.2 further enhances the control ability of gas flow and temperature balance to ensure the stability of stored hydrates.

[0065] The controller 8 cooperates with the built-in touch screen 8.1 to monitor the operating status of the system in real time, including the temperature, pressure and other data of the storage tank 3, and make automatic adjustments; this design realizes the intelligent control of the system, making the storage and release process of natural gas hydrate more efficient and accurate.

[0066] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A natural gas hydrate high-pressure collection and storage device, characterized in that: The invention comprises a storage cabinet (1), a storage rack (2), a storage tank (3), a cold and hot assembly (4), a temperature difference power generation recovery component (5), a high-pressure pipe (6), a sealing assembly (7) and a controller (8), wherein the storage rack (2) is fixedly mounted inside the storage cabinet (1), the storage tank (3) is fixedly mounted on four sides of the storage rack (2), the cold and hot assembly (4) is fixedly mounted on the inner bottom of the storage cabinet (1), the temperature difference power generation recovery component (5) is fixedly mounted on the storage tank (3), the temperature difference power generation recovery component (5) is fixedly mounted inside the cold and hot assembly (4), the high-pressure pipe (6) is fixedly mounted on both sides of the top of the storage tank (3), the sealing assembly (7) is fixedly mounted inside the high-pressure pipe (6), and the controller (8) is fixedly mounted on the outer surface of the storage cabinet (1); The hot and cold assembly (4) comprises a hot box (4.1), a semiconductor refrigeration sheet group (4.2) and a cold box (4.3), wherein the bottom of the hot box (4.1) is fixedly mounted on the inner bottom of the storage cabinet (1), the bottom of the semiconductor refrigeration sheet group (4.2) is fixedly mounted on the top of the hot box (4.1), and the bottom of the cold box (4.3) is fixedly mounted on the top of the semiconductor refrigeration sheet group (4.2); The temperature difference power generation recovery component (5) comprises a circular temperature difference power generation component (9), a plate temperature difference power generation component (10) and a temperature difference component (11), wherein the circular temperature difference power generation component (9) is fixedly mounted on the inner top of the storage tank (3), the plate temperature difference power generation component (10) is fixedly mounted in the cold and hot component (4), and the temperature difference component (11) is fixedly mounted on the bottom of the storage tank (3); The circular temperature difference power generation component (9) comprises an arc disk cold end (9.1) and an arc disk hot end (9.2), and the inner wall of the arc disk cold end (9.1) is fixedly sleeved on the outer wall of the arc disk hot end (9.2); The plate-shaped temperature difference power generation assembly (10) comprises a first plate-shaped cold end (10.1) and a first plate-shaped hot end (10.2); the first plate-shaped cold end (10.1) is fixedly mounted on the inner top of a cold box (4.3); and the first plate-shaped hot end (10.2) is fixedly mounted on the inner bottom of a hot box (4.1).

2. A natural gas hydrate high-pressure collection and storage device according to claim 1, characterized in that: Hinges (1.1) are fixedly arranged on both sides of the front end of the storage cabinet (1), a split door panel (1.2) is rotatably arranged on the front end of the storage cabinet (1), the split door panel (1.2) is fixedly mounted on the hinges (1.1), and a sliding door handle (1.3) is fixedly arranged on the outer wall of the split door panel (1.2); A ventilation hole (2.1) is provided in the middle of the storage rack (2); A touch screen (8.1) is fixedly arranged on the outer wall of the controller (8).

3. A natural gas hydrate high-pressure collection and storage device according to claim 1, characterized in that: A first air inlet pipe (3.1) is fixedly arranged on the top of the storage tank (3), a circulating air channel (3.2) is opened in the tank wall of the storage tank (3), a temperature-averaging straight pipe (3.3) is fixedly arranged on the inner wall of the storage tank (3), a temperature-averaging curved pipe (3.4) is fixedly arranged on the inner bottom of the storage tank (3), and a recovery box (3.5) is fixedly arranged on the bottom of the storage tank (3); The temperature difference component (11) comprises a cold transfer box (11.1) and a hot transfer box (11.2); the cold transfer box (11.1) is fixedly mounted on the inner bottom of the recovery box (3.5); and the hot transfer box (11.2) is fixedly mounted on the inner top of the recovery box (3.5).

4. A natural gas hydrate high-pressure collection and storage device according to claim 1, characterized in that: The cooling and heating assembly (4) further comprises a mounting frame (4.4), an air pump (4.5), a second air inlet pipe (4.6), an air filter pipe (4.7), a third air inlet pipe (4.8) and a first electric air valve (4.9), wherein the bottom of the mounting frame (4.4) is fixedly mounted on the inner bottom of the storage cabinet (1), the top of the mounting frame (4.4) is fixedly sleeved on the semiconductor refrigeration sheet group (4.2), the pump seat of the air pump (4.5) is fixedly mounted on the inner bottom of the storage cabinet (1), and one end of the second air inlet pipe (4.6) is fixedly mounted on the The air pump (4.5) is provided with one end of the air filter pipe (4.7) fixedly mounted on the other end of the second air inlet pipe (4.6), and the other end of the air filter pipe (4.7) extends out of the storage cabinet (1). The third air inlet pipe (4.8) is provided with one end fixedly mounted on the air pump (4.5), and the other end of the third air inlet pipe (4.8) is fixedly mounted on the hot box (4.1) and the cold box (4.3). The first electric air valve (4.9) is fixedly mounted on one end of the third air inlet pipe (4.8) close to the hot box (4.1) and the cold box (4.3).

5. A natural gas hydrate high-pressure collection and storage device according to claim 4, characterized in that: The hot and cold assembly (4) further comprises a hot air main pipe (4.10), a hot air branch pipe (4.11), a second electric air valve (4.12), a cold air main pipe (4.13), a cold air branch pipe (4.14), a third electric air valve (4.15) and an air transfer pipe (4.16), wherein one end of the hot air main pipe (4.10) is fixedly mounted on the hot box (4.1), and the other end of the hot air main pipe (4.10) extends out of the storage cabinet (1); one end of the hot air branch pipe (4.11) is fixedly mounted on the hot air main pipe (4.10), and the other end of the hot air branch pipe (4.11) is fixedly mounted on the bottom of the air transfer pipe (4.16); Two second electric gas valves (4.12) are provided, and the two second electric gas valves (4.12) are respectively fixedly mounted on the hot air main pipe (4.10) and the hot air branch pipe (4.11); one end of the cold air main pipe (4.13) is fixedly mounted on the cold box (4.3); one end of the cold air main pipe (4.13) is located in the storage cabinet (1); one end of the cold air branch pipe (4.14) is fixedly mounted on the cold air main pipe (4.13); the other end of the cold air branch pipe (4.14) is fixedly mounted on the bottom of the air transfer pipe (4.16); and the top of the air transfer pipe (4.16) is fixedly mounted on the first air inlet pipe (3.1).

6. A natural gas hydrate high-pressure collection and storage device according to claim 1, characterized in that: The circular temperature difference power generation assembly (9) comprises a temperature difference metal rod (9.3), an insulating rubber layer (9.4), a temperature difference metal sleeve frame (9.5) and a temperature difference connecting rod (9.6), wherein the outer wall of the temperature difference metal rod (9.3) is fixedly plugged into the hot end (9.2) of the arc disk, the inner wall of the insulating rubber layer (9.4) is fixedly mounted on the outer wall of the top of the temperature difference metal rod (9.3), the bottom of the temperature difference metal sleeve frame (9.5) is fixedly plugged into the cold end (9.1) of the arc disk, the inner wall of the top of the temperature difference metal sleeve frame (9.5) is fixedly sleeved on the insulating rubber layer (9.4), and the temperature difference connecting rod (9.6) is fixedly mounted on the top of the temperature difference metal sleeve frame (9.5).

7. A natural gas hydrate high-pressure collection and storage device according to claim 1, characterized in that: The plate-shaped temperature difference power generation assembly (10) further comprises a second plate-shaped cold end (10.3), a second plate-shaped hot end (10.4) and a thermal conductive plate (10.5); the second plate-shaped cold end (10.3) is fixedly mounted inside the cold transfer box (11.1); the second plate-shaped hot end (10.4) is fixedly mounted inside the hot transfer box (11.2); the bottom of the thermal conductive plate (10.5) is fixedly mounted on the tops of the first plate-shaped cold end (10.1), the first plate-shaped hot end (10.2), the second plate-shaped cold end (10.3) and the second plate-shaped hot end (10.4), respectively.

8. The natural gas hydrate high-pressure collection and storage device according to claim 1, characterized in that: The temperature difference component (11) comprises a switching air pipe (11.3), a temperature sensor (11.4), a conversion air hot inlet pipe (11.5), a conversion air cold inlet pipe (11.6), a fourth electric air valve (11.7), a conversion air hot exhaust pipe (11.8) and a conversion air cold exhaust pipe (11.9), wherein the top of the switching air pipe (11.3) is fixedly mounted on the bottom of the storage tank (3), the temperature sensor (11.4) is fixedly mounted on the switching air pipe (11.3), one end of the conversion air hot inlet pipe (11.5) is fixedly mounted on the switching air pipe (11.3), and the other end of the conversion air hot inlet pipe (11.5) is fixedly mounted on the heat transfer box (11.2). One end of the air-converting cooling inlet pipe (11.6) is fixedly mounted on the switching air pipe (11.3), the other end of the air-converting cooling inlet pipe (11.6) is fixedly mounted on the cold-converting box (11.1), the fourth electric air valve (11.7) is fixedly mounted on the air-converting heat inlet pipe (11.5) and the air-converting cooling inlet pipe (11.6), one end of the air-converting heat exhaust pipe (11.8) is fixedly mounted on the heat-converting box (11.2), the other end of the air-converting heat exhaust pipe (11.8) extends out of the storage cabinet (1), one end of the air-converting cooling exhaust pipe (11.9) is fixedly mounted on the cold-converting box (11.1), and the other end of the air-converting cooling exhaust pipe (11.9) is located in the storage cabinet (1).

9. A natural gas hydrate high-pressure collection and storage device according to claim 1, characterized in that: The sealing assembly (7) comprises a sealing cover (7.1), a sealing ring (7.2), a sealing valve ball (7.3), a sealing spring (7.4) and a spring seat plate (7.5), wherein the sealing cover (7.1) is threadedly mounted on the top of the high-pressure pipe (6), the sealing ring (7.2) is fixedly mounted on the inner wall of the high-pressure pipe (6), the sealing valve ball (7.3) is fixedly mounted on the top of the sealing spring (7.4), the bottom of the sealing spring (7.4) is fixedly mounted on the spring seat plate (7.5), and the spring seat plate (7.5) is fixedly mounted on the inner wall of the high-pressure pipe (6).

10. A natural gas hydrate high-pressure collection and storage device according to claim 9, characterized in that: The sealing assembly (7) further comprises a breathable arc ring (7.6), a sealing plate (7.7), a tension spring (7.8), a stop rod (7.9) and a switch valve (7.10), wherein the breathable arc ring (7.6) is fixedly mounted on the inner wall of the high-pressure pipe (6), the sealing plate (7.7) is fixedly mounted on one end of the tension spring (7.8), the other end of the tension spring (7.8) is fixedly mounted on the breathable arc ring (7.6), the bottom of the stop rod (7.9) is fixedly mounted on the sealing plate (7.7), and the switch valve (7.10) is fixedly mounted on the high-pressure pipe (6).

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