Gas cylinder protection structure and gas cylinder

Abstract

The utility model relates to the technical field of gas cylinder protection, in particular to a gas cylinder protection structure and a gas cylinder. The gas cylinder protection structure comprises a gas cushion, a control valve, a gas inlet pipe, a gas outlet pipe and a three-way valve. A one-way air path is arranged in the air cushion; a first outlet of the control valve is communicated with the air inlet end of the air cushion, and a second outlet of the control valve is communicated with a first inlet of the three-way valve through an air outlet pipe; an air outlet end of the air cushion communicates with a second inlet of the three-way valve The opening ratio of the first outlet to the second outlet of the control valve is adjustable; the air cushion is of a tiled structure or a sheath structure. According to the gas cylinder protection structure, the two gas flow channels flowing to the breathing mask are arranged, one gas flow channel is the gas outlet pipe, short-path gas supply from the gas cylinder to the breathing mask can be achieved, and low-resistance inspiration of a user is guaranteed; one gas flows to the breathing mask through the air cushion, so that the air cushion is supported through the outflow of the gas in the bottle, and heat insulation and protection of the air cushion are realized.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of gas cylinder protection, and in particular to a gas cylinder protection structure and a gas cylinder. BACKGROUND

[0002] As a pressure container, a gas cylinder is commonly used in a self-contained positive pressure respirator, is often used in various accident scenes as a basic component of individual protection equipment, and provides air or oxygen to protect personnel safety. As a high-pressure gas storage container, the gas cylinder may cause an explosion risk due to heat and collision; however, a gas cylinder used in some special places, such as a fire oxygen cylinder, cannot avoid risk factors in the environment and can only take protective measures on the gas cylinder. The existing gas cylinder protection measures include bottle body structure protection and coating protection structure; the former increases the structural complexity of the gas cylinder and reduces the portability; and the latter has a material-determined performance and cannot guarantee the effect. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the defects of the prior art that lacks reliable gas cylinder protection technology, the application provides a gas cylinder protection structure which is suitable for any gas cylinder, uses gas output in the bottle for protection and heat insulation, has good effect and low cost, and improves the flexibility, portability and reusability of the gas cylinder protection structure.

[0004] The application provides a gas cylinder protection structure, which comprises a gas cushion, a control valve, an air inlet pipe, an air outlet pipe and a three-way valve.

[0005] The gas cushion is provided with a one-way air path; the inlet of the control valve is connected with the air inlet pipe, the first outlet thereof is connected with the air inlet end of the gas cushion, and the second outlet thereof is connected with the first inlet of the three-way valve through the air outlet pipe; and the air outlet end of the gas cushion is connected with the second inlet of the three-way valve.

[0006] The opening degree ratio of the first outlet and the second outlet of the control valve is adjustable.

[0007] The gas cushion has a flat structure or a sheath structure.

[0008] Preferably, the gas cushion is internally provided with a plurality of parallel one-way air paths, the air inlet end of the gas cushion is connected with the inlets of the air paths, and the air outlet end of the gas cushion is connected with the outlets of the air paths.

[0009] Preferably, the gas cushion is formed by bending and flatly bonding a plurality of parallel gas pipes in a serpentine shape; and the gas pipe has a rough surface.

[0010] Preferably, a pressure reducing valve is arranged on the air inlet pipe, and a heat insulation coating is coated on the gas cushion.

[0011] The application also provides a gas cylinder, wherein the gas cushion is coated on the outer periphery of the bottle body; and the gas outlet valve of the gas cylinder is connected with the inlet of the control valve through the air inlet pipe.

[0012] Preferably, the breathing mask is further provided with an air outlet pipe and a breathing mask; the air inlet of the breathing mask is communicated with the outlet of the three-way valve; the air outlet pipe is communicated with the air outlet valve on the breathing mask; and the air outlet pipe is used for binding the air cushion.

[0013] The application has the advantages that:

[0014] (1) The air cylinder protection structure provided by the application is provided with two air flow channels flowing to the breathing mask, one is an air outlet pipe, which can realize short-path air supply from the air cylinder to the breathing mask, and ensure low-resistance inhalation of the user; and the other is through the air cushion to the breathing mask, which is convenient for supporting the air cushion by the outflow of the bottle gas, and realizes heat insulation and protection of the air cushion.

[0015] (2) In the application, a plurality of air paths are arranged in the air cushion, which is conducive to further reducing the breathing resistance; the air cushion is formed by bonding the air pipes, which improves the tension of the air cushion. The air pipe adopts a rough surface, which is conducive to increasing the wall friction of the air pipe and improving the structural stability of the air cushion. The air cushion is coated with a heat insulation coating, which further improves the heat insulation performance.

[0016] (3) Under the driving of the self-gas storage pressure of the air cylinder, the air cushion provides gas for the user while providing heat insulation and impact protection for the air cylinder; the air outlet pipe is arranged in the application, which provides an additional air path for the user, thereby reducing the inhalation resistance and improving the air use comfort. The application has the technical characteristics of light weight, modularity, easy manufacturing, strong reuse, and is suitable for individual protection equipment such as self-contained positive pressure respirators and various gas supply equipment based on air cylinders, especially for scenes with high temperature and collision risk, such as fire fighting, mining, emergency rescue and escape, etc.

[0017] (4) The air outlet pipe is arranged in the application, which can be used to bind the air cushion to improve the structural stability, and can further carry away the heat on the periphery of the air cushion through the air flow of the air outlet pipe to improve the heat insulation effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the air cylinder structure;

[0019] The drawings show: 1, air cushion; 2, control valve; 3, air inlet pipe; 4, air outlet pipe; 5, three-way valve; 6, bottle body; 7, air outlet pipe; 8, breathing mask; 9, pressure reducing valve; DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0021] AsFigure 1 The gas cylinder provided by the application comprises a cylinder body and a gas cylinder protection structure.

[0022] The gas cylinder protection structure comprises a gas cushion 1, a control valve 2, an air inlet pipe 3, an air outlet pipe 4 and a three-way valve 5. The gas cushion 1 is wrapped around the outer periphery of the cylinder body 6 and is used to block the heat exchange between the environment and the gas in the cylinder.

[0023] The gas cushion 1 is provided with a one-way gas path. The inlet of the control valve 2 is connected to the air inlet pipe 3, the first outlet a1 of the control valve 2 is connected to the air inlet end of the gas cushion 1, and the second outlet a2 of the control valve 2 is connected to the first inlet of the three-way valve 5 through the air outlet pipe 4. The outlet of the three-way valve 5 is used to connect and communicate with the air inlet of the breathing mask 8. The air outlet end of the gas cushion 1 is connected to the second inlet of the three-way valve 5. The opening degree ratio of the first outlet and the second outlet of the control valve 2 is adjustable.

[0024] The gas outlet valve of the gas cylinder is connected to the inlet of the control valve 2 through the air inlet pipe 3.

[0025] In this way, the gas in the cylinder can flow to the breathing mask 8 through the gas cushion 1 or through the air outlet pipe 4.

[0026] When the gas in the cylinder flows to the breathing mask 8 through the gas cushion 1, the gas cushion is in an inflation state, which can efficiently block the heat exchange between the environment and the cylinder body, reduce the heat absorption and temperature rise of the gas in the cylinder. The gas flow in the gas cushion 1 can take away the heat around the cylinder body, further improving the heat insulation effect.

[0027] The air outlet pipe 4 is provided to cooperate with the gas cushion 1 to ensure the air pressure of the breathing mask 8 and avoid increasing the inhalation resistance in the gas path in the gas cushion 1. In the embodiment, a pressure reducing valve 9 is arranged on the air inlet pipe 3 to ensure the stability of the air pressure.

[0028] In specific implementation, the gas cushion 1 is internally provided with a plurality of parallel one-way gas paths. The air inlet end of the gas cushion 1 is connected to the inlets of the gas paths, and the air outlet end of the gas cushion 1 is connected to the outlets of the gas paths. In this way, the cross-sectional area of the flow channel in the gas cushion 1 can be increased, and the gas flow resistance in the gas cushion 1 can be further reduced, thereby reducing the inhalation resistance of the breathing mask 8.

[0029] The gas cushion 1 is formed by bending and laying a plurality of air pipes. The air pipes are bent by 180 degrees at the bending positions to ensure smooth gas flow. The air pipes can have rough surfaces to increase the friction. Specifically, the gas cushion 1 is formed by bending a plurality of parallel air pipes to form a gas cushion 1 with a plurality of parallel one-way gas paths. The outer periphery of the air pipes is coated with a heat insulation layer to further improve the heat insulation effect of the gas cushion 1.

[0030] Specifically, the air tube can be made of flexible material with heat-resistant and heat-insulating properties, and the air tube is wrapped around the bottle body in a mesh and multi-layer structure by weaving. The air tube is supported by the pressure difference between the internal and external gas environments, and isolates the heat transfer and impact from the outside to the inside, thereby providing further heat insulation and impact protection for the bottle body 6.

[0031] In this embodiment, the air cushion 1 can be made into a flat and expanded structure, as shown in Figure 1 As shown, in use, the air cushion 1 is wrapped around the bottle body 6, and the air inlet of the air cushion 1 is located in the inner ring, and the air outlet of the air cushion 1 is located in the outer ring. The air cushion 1 can also be made into a sheath structure, which is more convenient to use, but cannot match different diameters of the bottle body.

[0032] In this embodiment, an exhalation tube 7 can be provided to communicate with the exhalation valve on the breathing mask 8, and the exhalation tube 7 can be used to bind the air cushion 1, so as to ensure the relative position stability of the air cushion 1 and the bottle body 6.

[0033] The control valve 2 is an electromagnetic valve, which controls the opening degree of the second outlet a2 and the first outlet a1.

[0034] In this embodiment, the second outlet a2 of the three-way valve 5 is in an open state, and the opening degree of the first outlet a1 of the control valve 2 is adjusted according to the gas pressure P in the bottle and the ambient temperature T. During the gas delivery process of the gas cylinder, the ambient temperature outside the bottle body is monitored, and as the temperature rises, the gas output of the air cushion 1 is increased, which can take away more heat and provide more efficient heat protection for the gas cylinder; at the same time, the gas delivery amount can be further increased, the inhalation resistance of the gas user can be reduced, and the comfort can be improved.

[0035] The lower limit of the pressure indicates the lowest acceptable value, which is 2MPa by default; it can be customized as needed. The temperature setting corresponds to the temperature of the environment, and the lower limit of the temperature and the upper limit of the temperature respectively indicate the maximum acceptable temperature range, the lower limit of the temperature can be set to 31, and the upper limit of the temperature can be set to 59; both parameters can be customized as needed.

[0036] Of course, for those skilled in the art, the present application is not limited to the details of the above exemplary embodiments, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0037] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0038] The technologies, shapes, and structural parts not described in detail in the present application are well-known technologies.

Claims

1. A protective structure for gas cylinders, characterized in that, The utility model relates to a kind of gas cushion and control valve, including: Air cushion (1), control valve (2), air inlet pipe (3), air outlet pipe (4) and three-way valve (5); Air cushion (1) is equipped with one-way air path;The inlet of control valve (2) is communicated with air inlet pipe (3), and the first outlet (a1) thereof is communicated with the air inlet end of air cushion (1), and the second outlet (a2) thereof is communicated with the first inlet of three-way valve (5) by air outlet pipe (4);The air outlet end of air cushion (1) is communicated with the second inlet of three-way valve (5); The opening degree ratio of the first outlet and the second outlet of control valve (2) is adjustable; Air cushion (1) is flat structure or sheath structure.

2. The gas cylinder protection structure according to claim 1, wherein Air cushion (1) is equipped with multiple one-way air paths arranged in parallel, and the air inlet end of air cushion (1) is communicated with the inlets of the air paths, and the air outlet end of air cushion (1) is communicated with the outlets of the air paths.

3. The gas cylinder protection structure according to claim 2, wherein Air cushion (1) is formed by bending and flatly bonding multiple parallel air tubes in a serpentine manner;The air tube has rough surface.

4. The gas cylinder protection structure according to claim 2, wherein The air tube has rough surface.

5. The gas cylinder protection structure according to claim 1, wherein Air inlet pipe (3) is equipped with pressure reducing valve (9).

6. The gas cylinder protection structure according to claim 1, wherein Air cushion (1) is coated with heat insulation coating.

7. A gas cylinder using the gas cylinder protection structure according to any one of claims 1 to 4, characterized by Air cushion (1) is wrapped around the outer periphery of the bottle body (6), and the air outlet valve of the gas cylinder is communicated with the inlet of control valve (2) through air inlet pipe (3).

8. The gas cylinder of claim 7, wherein, It also includes exhalation pipe (7) and breathing mask (8), and the air inlet of breathing mask (8) is communicated with the outlet of three-way valve (5), and exhalation pipe (7) is communicated with the exhalation valve on breathing mask (8), and exhalation pipe (7) is used for binding air cushion (1).

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