Double-full tank

Abstract

The utility model discloses a double-full tank. Comprising a natural gas tank body, and a hydrogen tank body is arranged in the natural gas tank body; a natural gas inlet and a natural gas outlet are formed in the natural gas tank body; a hydrogen inlet and a hydrogen outlet are formed in the hydrogen tank body; the hydrogen inlet and the hydrogen outlet are led out of the natural gas tank body through pipelines; and the natural gas tank body and the hydrogen tank body are provided with safe discharge systems. The hydrogen tank body is located in the natural gas tank body, and the natural gas tank body is used for storing natural gas and hydrogen leaked from the inner tank. Natural gas and hydrogen can be stored at the same time, and the problem that the leakage rate is high in the hydrogen storage process is effectively solved. The storage cabinet is good in sealing effect, large in nominal volume and safe and reliable in operation; and the economic benefit of the operation is checked in practical operation.

Description

Technical Field

[0001] The utility model relates to a double full tank, which is used in the field of hydrogen storage. Background Art

[0002] Hydrogen energy is an ideal clean energy with great development potential. Hydrogen is very active and has poor stability. It is easy to burn and explode after leakage, and it is difficult to store. According to the different forms of hydrogen, there are mainly solid hydrogen storage, low-temperature liquid hydrogen storage, high-pressure gaseous hydrogen storage and organic liquid hydrogen storage. The main hydrogen storage technologies have their own characteristics and scope of application. Among them, gaseous hydrogen storage will inevitably have a certain amount of hydrogen leakage. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a double full tank that can safely store hydrogen.

[0004] In order to achieve the above-mentioned object, the double full tank of the utility model comprises a natural gas tank body, in which a hydrogen tank body is arranged;

[0005] The natural gas tank is provided with a natural gas inlet and a natural gas exhaust port;

[0006] The hydrogen tank body is provided with a hydrogen inlet and a hydrogen exhaust port;

[0007] The hydrogen inlet and the hydrogen exhaust are led out of the natural gas tank through pipelines;

[0008] Natural gas tanks and hydrogen tanks are equipped with safety discharge systems.

[0009] Furthermore, the natural gas tank body is made of high-strength alloy steel.

[0010] Furthermore, the hydrogen tank body is made of carbon fiber composite material.

[0011] Furthermore, the natural gas inlet and / or exhaust port on the natural gas tank is connected to a natural gas pipeline, and the natural gas pipeline is provided with a regulating valve, a safety valve, and a check valve.

[0012] Furthermore, the natural gas pipeline is provided with temperature and pressure measuring points.

[0013] Furthermore, the hydrogen inlet and / or the hydrogen exhaust port on the hydrogen tank body are connected to a hydrogen pipeline, and the hydrogen pipeline is provided with a regulating valve, a safety valve, and a check valve.

[0014] Furthermore, the hydrogen pipeline is provided with temperature and pressure measuring points.

[0015] Furthermore, the natural gas tank and the hydrogen tank are both provided with a safety discharge system and a tank cover.

[0016] Furthermore, the safety discharge system includes an overpressure discharge safety valve, a purge vent, a pressure gauge port and an inspection manhole.

[0017] In the utility model, the hydrogen tank is located inside the natural gas tank, and the natural gas tank is used to store natural gas and hydrogen leaked from the inner tank. It can store natural gas and hydrogen at the same time, and effectively solve the problem of high leakage rate in hydrogen storage; the storage cabinet has good sealing effect, large nominal volume and safe and reliable operation; the economic benefits of its operation have been verified in practical operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a double full tank. DETAILED DESCRIPTION

[0019] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0020] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1 The double full tank of the utility model is specifically used for hydrogen storage.

[0024] It includes natural gas tank body 1, hydrogen tank body 2, natural gas inlet 3, natural gas exhaust port 4, hydrogen inlet 5, hydrogen exhaust port 6, safety discharge system 7, natural gas tank body head 8, safety discharge system 9, hydrogen tank body head 10, etc. The natural gas tank body is made of high-strength alloy steel, and the tank body wall thickness and weld quality meet the requirements of pressure vessels.

[0025] The hydrogen tank body is made of carbon fiber composite material, which has good tensile strength and corrosion resistance.

[0026] The natural gas inlet and exhaust ports are equipped with regulating valves, safety valves, check valves, temperature and pressure measuring points and other safety facilities on the pipelines, which are used for the intake and exhaust of natural gas in the external tank.

[0027] The hydrogen inlet and exhaust ports are equipped with regulating valves, safety valves, check valves, temperature and pressure measuring points and other safety facilities on the pipelines for the intake and exhaust of hydrogen in the inner tank.

[0028] The natural gas tank safety discharge system and tank head, including the overpressure discharge safety valve, purge vent, pressure gauge port and maintenance manhole, ensure the safe operation of the external tank and convenient maintenance.

[0029] The hydrogen tank safety discharge system and tank head, including the overpressure discharge safety valve, purge vent, pressure gauge port and maintenance manhole, ensure the safe operation of the inner tank and convenient maintenance.

[0030] Under normal operating conditions, the hydrogen tank is used to store hydrogen, and the natural gas tank is used to store natural gas and hydrogen leaking from the inner tank. It can store natural gas and hydrogen at the same time and effectively solve the problem of high leakage rate in hydrogen storage.

[0031] The utility model double full tank has good sealing effect, large nominal volume and safe and reliable operation. The economic benefits of its operation can be tested in future practical operation.

[0032] The utility model is described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the utility model. Many other changes and modifications that do not depart from the concept and scope of the utility model should be considered as the protection scope of the utility model.

[0033] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0034] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. Double full tank, characterized by: It comprises a natural gas tank body, in which a hydrogen tank body is arranged; The natural gas tank is provided with a natural gas inlet and a natural gas exhaust port; The hydrogen tank body is provided with a hydrogen inlet and a hydrogen exhaust port; The hydrogen inlet and the hydrogen exhaust are led out of the natural gas tank through pipelines; Natural gas tanks and hydrogen tanks are equipped with safety discharge systems.

2. The double full tank according to claim 1, characterized in that: The natural gas tank body is made of high-strength alloy steel.

3. The double full tank according to claim 1, characterized in that: The hydrogen tank body is made of carbon fiber composite material.

4. The double full tank according to claim 1, characterized in that: The natural gas inlet and / or exhaust port on the natural gas tank is connected to a natural gas pipeline, and the natural gas pipeline is provided with a regulating valve, a safety valve and a check valve.

5. The double full tank according to claim 4, characterized in that: The natural gas pipeline is provided with temperature and pressure measuring points.

Images