JP2022114247A - Protector for pressure container and pressure container unit - Google Patents

Abstract

To provide a protector for a pressure container which is light-weight and yet achieves excellent impact resistance and handleability, and to provide a pressure container unit.SOLUTION: A protector for a pressure container of the invention comprises: a cover A which is disposed at a position of one end as seen in a longitudinal direction of the pressure container and covers an outer peripheral portion and one end portion of the pressure container; a cover B which is disposed at another position and covers the outer peripheral portion of the pressure container; and a rigid member which connects the cover A with the cover B. The rigid member is disposed along the longitudinal direction of the pressure container at the outer side relative to an outer periphery of the pressure container, and at least one end of the rigid member is located at the outer side of an attachment tool on an extension line as seen in the longitudinal direction of the pressure container. Further, it is preferable to form the pressure container by a resin or a fiber-reinforced resin and it is preferable to form the cover A or the cover B by a synthetic resin. A pressure container unit of another part of the invention comprises: the pressure container; and the protector which protects the outer periphery of the pressure container.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure vessel protector suitable for a pressure vessel containing high-pressure gas or the like, and a pressure vessel unit comprising the protector and the pressure vessel.

There are various types of containers for filling high-pressure gas, from those made of steel to those made of metal or plastic liner wrapped with resin-impregnated carbon fiber.

Conventionally, in such a high-pressure filled gas container, a highly robust container made of steel has been used as a container type that is used for applications that involve frequent movement and transportation such as carrying and loading on a vehicle. Products made of steel are heavy even though they are small, and they are often moved using ancillary equipment such as carry and unic.

On the other hand, high-pressure composite material containers, in which resin-impregnated carbon fiber is wrapped around a metal or plastic liner, are extremely lightweight and easy to handle compared to steel containers of the same size. (Patent Documents 2 and 3). For example, pressure vessels for air respirators worn by firefighters during fire extinguishing work used to be made of steel. Lightweight composite pressure vessels are used in almost all fire stations nationwide.

However, on the other hand, in order to ensure the soundness of the composite pressure vessel, it is stipulated by law that it should not be handled roughly. The permissible depth of damage to the resin-impregnated carbon fiber layer is specified. And although there are strict regulations to prevent damage to containers due to such rough handling, in recent years there has been an increase in opportunities for non-professionals to use them, and there has been a demand for containers that are less likely to be damaged. . For example, for transportation of fuel during disasters and outdoor activities such as camping, and for transportation of high-pressure oxygen for medical use, a container that is lightweight and resistant to damage is required. However, compared with the conventional steel pressure vessel, there is a problem that the lightweight composite material pressure vessel is easily damaged.

Therefore, in the future, in order to expand and popularize the lightweight and highly functional composite material pressure vessel as a high-pressure gas filling container for applications with high transportation frequency such as carrying and loading on vehicles, handling management on the user side will be required. The development of a product that not only depends on the

SUMMARY OF THE INVENTION The present invention has been made in view of the actual situation of industrial use of high-pressure gas filling containers, with the object of improving this.

Utility Model Registration No. 3107715 JP-A-1-113227 JP 2019-7557 A

SUMMARY OF THE INVENTION The present invention has been made in view of the above background, and an object thereof is to provide a pressure vessel protector and a pressure vessel unit which are lightweight and have excellent impact resistance and handleability.

The pressure vessel protector of the present invention comprises a cover A which is arranged at one end in the longitudinal direction of the pressure vessel and covers the outer peripheral portion and one end of the pressure vessel, and another position which is arranged at the outer peripheral portion of the pressure vessel. and a rigid member connecting the cover A and the cover B, the rigid member is arranged outside the outer periphery of the pressure vessel along the longitudinal direction of the pressure vessel, and the longitudinal axis of the pressure vessel At least one end of the rigid member is positioned outside the fixture in extension of the direction.

Furthermore, it is preferable that the pressure vessel is made of resin or fiber-reinforced resin. In addition, at least a part of the rigid member connecting the cover A and the cover B is located away from the side surface of the pressure vessel, and at least two of the plurality of rigid members protect the mouthpiece of the pressure vessel. It is preferable that the cover A or cover B be made of synthetic resin, and that the rigid member be made of metal.

Another pressure vessel unit of the present invention is a pressure vessel unit having a pressure vessel and a protector for protecting the outer circumference of the pressure vessel, wherein the protector is formed from at least cover A, cover B and one or more rigid members. A cover A is arranged at one end in the longitudinal direction of the pressure vessel, a cover B is arranged at the other position, the cover A and the cover B are connected by a rigid member, and an end of at least one rigid member It is characterized by being positioned outside the fixture.

According to the present invention, it is possible to provide a pressure vessel protector and a pressure vessel unit that are lightweight and have excellent impact resistance and handleability.

1 is a perspective view of a high-pressure gas filling container, an attached valve, and a protector showing an embodiment of the present invention; FIG. 1 is an exploded perspective view of a high-pressure gas filling container, an attached valve, and a protector showing an embodiment of the present invention; FIG. It is the cover A of the protector which shows one Embodiment of this invention, (a) is a top view, (b) is a front view. It is the cover B of the protector which shows one Embodiment of this invention, and is (a) a top view, (b) It is a front view. FIG. 4 is a diagram for explaining the anti-rotation action of the protector showing the embodiment of the present invention, and is a plan view when the entire container is placed horizontally. FIG. 4 is a diagram for explaining the action of protecting the attached valve of the protector showing the embodiment of the present invention, and is a plan view when the entire container is turned sideways. FIG. 10 is a side view for explaining the action of conveying the protector showing one embodiment of the present invention. FIG. 4 is a front view for explaining the overturn prevention action of the protector showing the embodiment of the present invention.

The pressure vessel protector of the present invention protects and protects the pressure vessel, and includes a cover A covering the outer peripheral portion and one end portion of the pressure vessel, a cover B covering the outer peripheral portion of the pressure vessel, and the cover A. and the cover B are made of a rigid member. The rigid members are arranged outside the outer circumference of the pressure vessel along the longitudinal direction of the pressure vessel, and at least one end of the rigid member extends outside the fixture along the longitudinal extension of the pressure vessel. positioned. Further, the cover A is arranged at one end position in the longitudinal direction of the pressure vessel, and the other cover B is arranged at another position different from the cover A.

Here, the pressure vessel protected by the protector of the present invention refers mainly to a vessel for containing high-pressure gas of 1 MPa or higher.

The pressure vessel protected by the protector of the present invention is preferably made of resin or fiber-reinforced resin. Here, "made of resin or made of fiber-reinforced resin" means that at least a part of the pressure vessel, or most of it, is made of resin or made of fiber-reinforced resin. Furthermore, a so-called composite container (composite material container) is composed of a lightweight metal liner such as aluminum or a resin liner layer made of synthetic resin, and a reinforcing layer formed of FRP or the like covering this liner layer. is preferably In particular, the protector of the present invention is optimal when using a lightweight resin liner.

The reinforcing layer is preferably made of fiber reinforced resin (FRP), and various high-strength fibers such as carbon fiber, glass fiber, and aramid fiber can be used as the reinforcing fiber. Among them, it is preferable to use carbon fiber as the reinforcing fiber. The impact strength of such reinforcing fiber is not so high compared to its tensile strength, but by using the pressure vessel protector of the present invention, a higher impact resistance can be ensured. .

The contents of the pressure vessel include liquefied fuels such as liquefied petroleum gas (LPG) and medical or industrial gases such as oxygen, nitrogen and hydrogen.

The cover A that covers the outer peripheral portion and one end portion of the pressure vessel and the cover B that covers the outer peripheral portion of the pressure vessel may be made of a lightweight metal such as aluminum, but preferably made of a synthetic resin. Higher impact resistance can be obtained. Examples of synthetic resins include thermoplastic resins such as polyethylene (PE), high-density polyethylene (HDPE), polyamide, polyketone, polyphenylene sulfide (PPS), nylon, and fluororesin. It is preferably a thermoplastic resin. It is also preferred to use a thermosetting resin.

Also, the cover A covers one end portion of the pressure vessel, and by arranging the cover A under the normal position, it is possible to reduce the impact applied to the pressure vessel at the end of the movement. Furthermore, it is preferable that the cover B protects the shoulder portion of the pressure vessel as well as the outer peripheral portion. These covers A and B cover the outer peripheral portion of the pressure vessel, and can effectively reduce the impact even when the pressure vessel is laid down in the horizontal direction.

Moreover, it is preferable that the cover A covering one end portion of the pressure vessel has a through-hole in a part thereof, so that rainwater and the like can be effectively discharged when the pressure vessel is installed outdoors.

The rigid member used in the present invention is a member that connects the cover A and the cover B described above. Furthermore, this rigid member is arranged outside the outer periphery of the pressure vessel along the longitudinal direction of the pressure vessel, and when the pressure vessel unit is laid down and moved, this rigid member serves as a handle. can be done. Furthermore, at least a portion of the rigid member that connects the cover A and the cover B is located away from the side surface of the pressure vessel, thereby improving impact resistance, easiness of holding, and easiness of handling. can be fulfilled.

Furthermore, the end of at least one rigid member is on the extension line of the longitudinal direction of the pressure vessel, and the rigid member is positioned outside the fixture of the pressure vessel (which also serves as an entrance and exit for the contents), The pressure vessel fittings can be protected. In addition, the fixture specifically means an attached valve regulator or the like. Furthermore, by providing two or more rigid members and joining the rigid members so as to cover the outside of the mounting portion, it is possible to more safely protect the mounting tool and the base portion. It is more preferable that the shape of the joint portion is a U-shape because it is less likely to receive impacts and more likely to absorb impacts.

Such a rigid member is preferably made of metal. Furthermore, it is preferable that it is a lightweight metal, and that it is aluminum in particular. Further, by adopting a rod shape or a hollow pipe shape, it is possible to further reduce the weight.

Another pressure vessel unit of the present invention comprises the pressure vessel as described above and a protector for protecting the outer circumference of the pressure vessel. Here, the protector is composed of at least a cover A, a cover B and one or more rigid members, and the cover A is arranged at one end in the longitudinal direction of the pressure vessel, and the cover B is arranged at the other position. and cover B are connected by a rigid member, the end of at least one rigid member being located outside the fitting of the pressure vessel.

Further, preferred embodiments of the pressure vessel protector of the present invention will be described below with reference to the drawings, but the present invention is not limited by the following. Hereinafter, the pressure vessel protector of the present invention may be referred to as "protector", and the pressure vessel used in the present invention may be referred to as "high-pressure gas filling container main body".

First, with reference to FIGS. 1 to 4, a preferred construction of a protector for a high-pressure gas-filled container main body 3, which is a pressure container, and an attached valve 4 will be described. As shown in FIGS. 1 and 2, this protector consists of a cover A provided in the region of the lower mirror portion 5 so as to protect the outer periphery of the high-pressure gas filling container main body 3 and the attached valve 4, and the attached valve mounting side. The cover B provided in the area of the upper mirror portion 7 is divided into upper and lower halves. (hereinafter, the high-pressure gas-filled container main body 3, which is a pressure container, is simply referred to as the container main body 3 for convenience).

The container main body 3 is made of a high-pressure composite material container in which resin-impregnated carbon fiber is wrapped around a plastic or aluminum liner, and has an overall length of about 500 mm, an outer diameter of about 200 mm, and a wall thickness of about 10 mm. It is a cylindrical container 3 having a cylindrical body 6 and dome-shaped mirrors 5 and 7 at both ends thereof, and having a gas outlet (port) 8 at only one end of the container. The container body 3 can be designed and manufactured arbitrarily according to the purpose and customer's request within the scope of applicable laws and regulations. 000 mm and an outer diameter of 90 to 300 mm, particularly preferably a total length of 300 to 600 mm and an outer diameter of 120 to 250 mm.

As another embodiment of the container main body 3, it is also preferable to have a configuration in which the gas extraction caps (ports) 8 are provided at both ends. In this case, a safety valve may be attached to the gas extraction mouthpiece (port) on the opposite end to the gas extraction valve 4, and in the container of the present invention, there is no limitation on the configuration of the gas extraction mouthpiece (port). .

The cover A constituting the protector is normally arranged below the container body 3 when the container body 3 is vertically fixed as shown in FIG. 3 torso 6
It is configured in such a way as to partially protect the lower area of the In order to provide a certain gap between the side surface of the container body 3 and the inner diameter of the cover A, as shown in FIG. It is preferable to have a spacer structure in which the ribs 10 are radially provided at regular intervals. In general, manufacturing errors of the order of several millimeters occur in the outer diameter of a composite material container. The structure is set up. A gap of 0 to 10 mm is preferable. This gap is also effective in absorbing external impact.

Further, as shown in FIG. 3, at both left and right ends of the outer peripheral surface of the main cover A, a rigid member C having a function of connecting the cover B is inserted and loosely fitted. A plurality of screw holes 12 for fixing the rigid member C after being loosely fitted are drilled in the side surface of the boss structure 11 . Forming the convex portion on the cover in this manner also makes it possible to prevent the cylindrical pressure vessel from rolling.

In addition, a hole is provided in the bottom portion of the inner surface 9 of the main cover A, and a draining portion is provided so that rainwater or the like that has entered from the gap provided between the container main body 3 and the inner diameter of the main cover A can be drained during outdoor use. 14 (drainage port) is preferably provided at a plurality of locations.

The cover A has a thickness of about 2 mm, a height of about 150 mm, and an inner diameter of about 10 mm plus the outer diameter of the container, and is made of thermoplastic resin to which a flame retardant is added. The dimensions of this cover A are an example of an embodiment according to the present invention, and the thickness, height, inner diameter, etc. can be freely changed according to specifications such as the size, weight, operating conditions, etc. of the container body 3. In the present invention, the thickness is preferably in the range of 0.5 to 10 mm and the height is in the range of 30 to 250 mm, more preferably the thickness is in the range of 1 to 6 mm and the height is in the range of 80 to 200 mm. The inner diameter is preferably in the range of the outer diameter of the container plus 0 to 10 mm.

As another example of the cover A, a metal material such as steel or lightweight aluminum may be used depending on the application and operating conditions.

Here, by using a resin cover as shown in FIG. 1, it is possible to impart a degree of freedom of three-dimensional complicated shape, and to ensure light weight. Furthermore, a resin cover is preferable because molding methods such as injection molding and stamping processing, which are excellent in productivity and cost merits, can be employed. In addition, by using a resin cover, additional functions such as coloring can be performed in one step during the molding stage, reducing costs by eliminating the post-molding painting process that is done with steel containers. becomes possible. In particular, high-density polyethylene or the like is preferably used.

Further, the cover B is arranged above the container body 3 when the container body 3 is fixed in the vertical direction as shown in FIG. It is preferably configured in such a way as to protect a portion of the upper region of the.

As shown in FIG. 4, for the cover B, similarly to the cover A, the shape of the upper mirror portion 7 of the container body 3 is adjusted so as to provide a constant gap between the side surface of the body portion 6 of the container body 3 and the inner diameter of the cover B. Preferably, the inner surface 15 of the cover B has a spacer structure in which a plurality of ribs 16 are radially provided at equal intervals.

Further, as shown in the exploded view of FIG. 2, the cover B is provided with a cushioning material D that constitutes a protector that serves as an interference member for improving the close contact between the cover B and the container body 3 when the container is accommodated. It is preferable that By arranging this cushioning member D, the final fixation of the container body 3 to the cover A and cover B, which has a loose fitting structure to absorb manufacturing errors in the outer diameter of the container body 3, can be securely fixed. It becomes possible structure. The interference member is preferably an elastic body such as rubber, and particularly preferably silicon rubber.

As shown in FIG. 4, rigid members C connecting the covers A and B are inserted into the left and right ends of the outer peripheral surface of the main cover B in the same manner as the cover A, and have a complete boss structure for loose fitting. A plurality of screw holes 18 for fixing the body 17 and the rigid member C after being loosely fitted are drilled in the side surface of the boss structure 17 .

The upper surface of the main cover B is provided with an opening 20 having a constant diameter so that the attached valve can be easily operated and the connection of pipes, hoses, etc. can be easily performed, and the attached valve 4 can be exposed as a whole. there is

The cover B has a thickness of about 2 mm, a height of about 120 mm, and an inner diameter of about 10 mm plus the outer diameter of the container, and is made of thermoplastic resin to which a flame retardant is added. The dimensions of this cover B are an example of an embodiment according to the present invention, and like the cover A, the shape, material, etc. can be freely changed according to the specifications such as the size, weight, operating conditions, etc. of the container body 3. , may be a combination of a different form from the cover A specification or a combination of the same form. A preferable shape is 0.5 to 10 mm in thickness and 30 to 250 mm in height, more preferably 1 to 6 mm in thickness and 80 to 180 mm in height. The inner diameter is preferably in the range of the outer diameter of the container plus 0 to 10 mm.

In FIG. 1, similar to the cover A, the cover B is a resin (high-density polyethylene) cover that takes advantage of the design flexibility, additional functions, productivity, and cost advantages.

As shown in FIG. 1, the rigid member C is made of a hollow aluminum tube, has a diameter of about 25 mm, and has a length of about 600 mm from the side boss structure 11 of the cover A along the longitudinal direction of the container body 3 . It is bent in a U-shape so as to be horizontal above the attached valve 4 . The shape is preferably in the range of 10 to 50 mm in diameter and 400 to 700 mm in length.

As shown in FIG. 1, the rigid member C is a connecting member that connects the cover A and the cover B and at the same time has a gripping function during transportation. After the rigid member C is inserted into the fully drilled boss structure 17 of the cover B, the rigid member C is positioned and fixed at the drilled portion of the drilled boss structure 11 of the cover A so that the covers A and B are connected and fixed.

In order to reduce the manufacturing cost, the rigid member C may be a single structure formed by bending a commercially available hollow steel pipe. At this time, since dimensional errors during processing and molding are generally larger than those for injection molded products and stamping molded products, the hole diameters of the side drilled boss structures 11 and 17 of cover A and cover B are 13 and 19 are designed to be larger than the diameter of the rigid member C so that the rigid member C can be loosely fitted to the drilled boss structures 11 and 17 of the covers A and B. As shown in FIG. Further, as shown in FIG. 2, the rigid member C is provided with holes 25 for passing screws through the screw holes 12 and 18 drilled in the sides of the boss structures 11 and 17 of the respective covers A and B. It has a structure in which each cover and the rigid member C are fixed using bolts or the like. It is preferable that the screws and bolts are rust-proof processed, for example, trivalent white-treated steel.

As another example of forming the rigid member C, a commercially available aluminum steel pipe material may be divided and connected by screwing or the like, or a resin-molded pipe material may be used. Also, the vertical member extending along the longitudinal direction of the container body 3 may be made of metal, and the horizontal member positioned above the attached valve 4 may be made of resin molding, and these may be used in combination. Various materials are used for the material constituting the rigid member, the split structure, and the combination thereof.

Next, the effect of the protector on the container body 3 and attached valve 4 having the above-described structure will be described.

The container unit 1 consisting of the container main body 3 and the attached valve 4 is mainly excellent in transportation and mobility due to its compact size and lightness, so it can be used not only for industrial purposes but also for emergencies and outdoor leisure activities. It can also be used for devices that operate using gas as an energy source. Therefore, in order for the container unit 1 to function safely and soundly, it is necessary to reliably protect the container unit 1 from troubles and accidents in terms of operation such as transportation and movement, and the protector of the present invention works effectively. do.

The container unit 1 is assumed to be moved to any place or transported using a moving means. For example, the containers may be loaded on the platform of a vehicle for transporting the containers, but there is a possibility that the container units 1 may be dropped during loading and unloading operations. However, the protector of the present invention, which includes the covers A and B and the rigid member C connecting and fixing them, does not damage the container body 3 and attached valve 4 even if dropped from a height of 3 m. and can maintain its integrity. In the vertical, horizontal, and angle drop tests from a height of 3m using the illustrated container unit 1, the pressure resistance and bursting tests of the container 3 subjected to the test showed the performance of the conforming standard (general composite container rule: KHKS-0121). The requirements were met, and the effectiveness of the protector was confirmed.

In the transportation of the container unit 1, various forms of movement occur, such as transportation from a storage location to a vehicle, loading into a vehicle, unloading at a transportation destination, and transportation from a storage location to a filling location. Therefore, the lightness of the container unit 1 is an important factor in working efficiency and safety. In the container unit 1 of the present invention, the container body 3 is made of a composite material container, and in addition, the protective protector itself is made of resin or divided, so that a lightweight container unit 1 can be realized.

In the past, steel containers were widely used as high-pressure gas filling containers that involved transportation and movement, and their protective protectors were also made of steel just like the containers. There were issues in terms of workload and safety related to Preferably, the container unit 1 according to the present invention uses resin, aluminum, or the like, and the total weight of the container body 3, attached valve 4, and protector is 15 kg or less. In particular, it is preferably in the range of 5-10 kg. For such a product of the present container unit size, it is preferable to achieve weight reduction for transportation and carrying.

The container unit 1 of the present invention can be transported in an upright state by gripping the rigid member C as a handle in a vertically placed state. By gripping the rigid member C, it is possible to carry it in the lateral direction.

The bottom of the cover A that constitutes the protector of the present invention is preferably flat, so that the container unit 1 can be fixed vertically using the protector. Normally, when only the container body 3 is stored alone, the mirror part of the container body 3 has a dome shape and cannot be placed vertically. In many cases, a rack is manufactured and the container is stored in the rack, but by using the protector of the present invention, in addition to protecting the container during storage, it is possible to store it vertically, so the inspection work efficiency of the container is improved. good, and storage efficiency is also improved.

Also, when filling with high-pressure gas, the high-pressure gas filling hose is connected to the filling port of the valve,
Load is likely to be applied in the direction of the filling port connecting portion of the high-pressure filling container, and it tends to overturn. Furthermore, there is also the danger that the valve will loosen and the gas will leak. However, by using a protector suitable for the high-pressure filling container of the present invention, the stability of the high-pressure gas filling container is increased when placed vertically, preventing overturning and loosening of the valve during high-pressure gas filling. It becomes possible.

Even if the high-pressure gas filling container main body overturns, the use of the protector of the present invention can prevent damage to the high-pressure gas filling container main body and accessories.

Furthermore, it is preferable that the covers A and B of the protector of the present invention have boss structures 11 and 17 for inserting the rigid member C therein. As shown in FIG. 5, even when the container unit 1 needs to be placed horizontally, it is possible to stably store, fix, and work without rotating it more than half a turn. Conventionally, when filling gas into the container body 3, connecting pipes to the attached valve 4, connecting hoses, etc., the container may be placed horizontally during work, and the container may rotate during work, causing damage due to falling from the workbench. However, using this protector makes it possible to work stably and efficiently even when placed horizontally.

The cover A and cover B of the protector are preferably of a split type, and are configured with the minimum necessary size so that the outer surface of the body portion 6 of the container body 3 can be directly visually confirmed. Become. As for the composite material pressure vessel applied to the present invention, it is stipulated that, as shown in Fig. 2, a label 26 indicating specified items should be affixed to the outer surface of the body 6 of the vessel (Container Safety Regulations, Chapter 4, Chapter 4). Paragraph 2 of Article 10 stipulates that the name of the gas that can be filled, owner information, etc. must be specified), and it is necessary to be able to check it during operation such as filling. For example, in the case of a protector that covers the entire composite material container, the display label needs to be attached to the surface of the protector, which is the outer case. There were issues such as the need for accompanying management work, such as the need for inspections, and the difficulty of easily changing the structure and specifications.

On the other hand, in the protector of the present invention, it is possible to suppress damage when the container falls over without covering the entire container, and at the same time, it is possible to adopt a shape that allows the operator to easily check the container display label 26. is. In the protector of the present invention, as stipulated by the Container Security Regulations, Chapter 4, Article 10, Paragraph 1, the cover A and the cover are provided so that 50% or more of the entire area of the side surface of the body portion 6 of the container body 3 can be visually confirmed. B can be configured, and the object of container approval acquisition is only the container main body 3 and the attached valve 4, so it is possible to expand the management and operation of the protector and the degree of freedom in design.

Furthermore, a pressure vessel body suitable for high-pressure gas filling using the present invention is preferably pivotable inside a cover around it. By doing so, the direction of the filling port of the valve for filling the high-pressure gas can be varied, resulting in excellent handling. In addition, it is possible to easily avoid interference between the handle portion made of a rigid member and the high-pressure gas filling hose or filling pipe.

In addition, the high-pressure gas safety law stipulates the color of the main body of a container for filling a high-pressure gas that is generally sold according to the type of gas. As described above, the protector of the present invention preferably has a structure in which 1/2 or more of the container body can be visually recognized. . Also, the protector itself is preferably colored. Coloring can also improve the visibility of a plurality of gas species.

The protector of the present invention can protect accessories such as the container body 3, the attached valve 4, and the regulator from damage. Conventionally, most of the attached valves 4 are smaller than the outer diameter of the barrel of the container body 3, but as shown in FIG. It may be larger than the outer diameter of 3. If the container body 3 is operated without a protector in such a configuration, the attached valve 21 may be damaged when the container body 3 falls over or comes into contact with an obstacle during transportation. However, such a problem can be avoided by designing the outer diameter size of the cover B constituting the protector of the present invention so that the outer diameter of the attached valve 21 fits within its inner region. It is also preferable to provide a projection 22 or the like on a part of the outer circumference of the cover B as shown in FIG.

As described above, the protector of the present invention is preferably composed of the divided members of the cover A, the cover B, the rigid member C, and the cushioning member D, so that the protector can be easily attached and detached. As shown in FIG. 2, after removing the bolts that finally fix the covers A and B and the rigid member C and removing the rigid member C from the fitting portions of the boss structures 11 and 17 of the covers A and B, , the cover B and the cushioning member D are removed, the container body 3 can be easily removed and replaced.

Many conventional protectors have a structure in which they are welded to the upper and lower mirror parts of a steel container, and the container itself cannot be used and operated during the period when the cover damaged by transportation work etc. is repaired, and the protector is damaged. In severe cases, repair by re-welding, re-painting, etc. are necessary, and thus the operational efficiency of the container is lowered and the repair cost is increased. In addition, in the case of protecting the entire surface of a composite high-pressure vessel with a resin protector, if the protector is damaged, even though it has a divided structure, the resin cover has a considerably large area, so it is difficult to replace the protector. Material loss is large, and in addition to repair workability, there are issues in terms of cost. The protector of the present invention is of a top-and-bottom split type and has a minimum necessary size, so that it is sufficient to replace only the portion that needs repair, and the repair work is easy, and the container unit 1 itself can also be repaired. Since it can be continuously operated, it is also advantageous in terms of repair costs and business costs related to container operation.

Moreover, the present invention is effective in reducing the operation cost of container operation on the user side who uses the pressure container. When the protector of the present invention is used, as described above, it is possible to connect hoses and pipes to the attached valve 4 and operate the valve while maintaining the function of protecting the entire container without removing the protector. Work can be carried out easily. Moreover, if the pipe connection of the attached valve 4 and the workability of the valve operation are good, there is an advantage in that the work load on the operator is reduced, leading to more reliable work security and safety security.

As described above, the inner surface 9 of the cover A constituting the protector of the present invention is preferably provided with the drainage port 14 for draining water. The structure prevents rainwater from staying in the cover for a long period of time, and corrosion of the container body 3 can be prevented even when used outdoors.

As another embodiment of the protector of the present invention, as shown in FIG. 7, by mounting wheels 23 on the cover A portion of the container unit 1 as a support portion, the carrying of the protector can be further facilitated.

In this case, it is preferable to install the wheels 23 directly on a portion of the lower end of the cover A, or a separate carry unit may be attached to the lower side of the cover A. When the protector is used with the wheels 23 attached to the lower end of the protector, it is mainly towed by hand. It is necessary to adjust the tilt angle, and when adjusting the tilt angle of the container unit 1, it is preferable to double the vertical member of the rigid member C so as to have a slide structure. It is also possible to freely adjust the distance.

The container unit 1 of the present invention is most suitable for applications involving frequent portability, transport by vehicle, and movement, and can be used both outdoors and indoors. In particular, when the container unit 1 is transported while being loaded on the loading platform of a vehicle, as described above, the container unit 1 can be vertically placed on the loading platform for transportation. Furthermore, depending on the loading space of the vehicle, there is a risk of overturning during movement. Therefore, as shown in FIG. can. As such a lashing method, it is preferable to pass the rigid member C and fix one or more of them together.

As described above, the protector of the present invention has a structure in which the horizontal portion of the rigid member C can be used as a handle and can be easily grasped, so that it can be easily transported by hand. Conventional resin protectors have, for example, a ring-shaped handle or a notch provided on the upper part of the protector, which is gripped to tilt the entire container and roll it around the lower end of the container as a fulcrum. However, in a preferred embodiment of the present invention, the protector can be held by the horizontal part of the U-shaped rigid member C as a handle, so that the protector can be easily gripped by hand and can be transported safely and easily. .

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications are possible without departing from the gist of the present invention.

A Cover A (lower part) that constitutes the protector
Cover B (upper part) that constitutes B protector
C Rigid member constituting protector D Cushioning material constituting protector 1 Container unit 2 Protector 3 High-pressure gas filling container main body 4 Attached valve 5 Lower mirror part of high-pressure gas filling container 6 Body part of high-pressure gas filling container 7 High-pressure gas filling container 8 gas outlet mouthpiece of high-pressure gas charging container 9 inner surface of cover A 10 rib structure of cover A 11 boss structure 12 provided with cover A screw hole on side of boss structure of cover A
13 Drilled portion of boss structure of cover A 14 Drain port provided in bottom of cover A 15 Inner surface of cover B
16 rib structure of cover B 17 perforated boss structure of cover B
18 Screw hole on the side of the boss structure of the cover B 19 Drilled portion of the boss structure of the cover B 20 Opening provided on the upper surface of the cover B
21 Attached valve larger than the outer diameter of the container body 22 Projection for preventing rolling of the container unit 23 Wheel attached to the cover A at the bottom of the container unit
24 String or chain for preventing overturning of container unit 25 Screw hole 26 drilled in rigid member C Display label on main body of high-pressure gas filling container

Claims (7)

A protector for a pressure vessel, which is arranged at one end position in the longitudinal direction of the pressure vessel and covers an outer peripheral portion and one end portion of the pressure vessel, and a cover A which is arranged at another position and is an outer peripheral portion of the pressure vessel. and a rigid member connecting the cover A and the cover B, the rigid member is arranged outside the outer periphery of the pressure vessel along the longitudinal direction of the pressure vessel, and the longitudinal axis of the pressure vessel A protector for a pressure vessel, characterized in that the end of at least one rigid member is located outside the fitting in extension of the direction. 2. The pressure vessel protector according to claim 1, wherein the pressure vessel is made of resin or fiber-reinforced resin. 3. The pressure vessel protector according to claim 1, wherein at least part of the rigid member connecting the cover A and the cover B is located away from the side surface of the pressure vessel. 4. The pressure vessel protector according to any one of claims 1 to 3, wherein there are a plurality of rigid members, and at least two of them are connected so as to protect the mouthpiece of the pressure vessel. 5. The pressure vessel protector according to any one of claims 1 to 4, wherein the cover A or the cover B is made of synthetic resin. 6. The pressure vessel protector according to any one of claims 1 to 5, wherein the rigid member is made of metal. A pressure vessel unit having a pressure vessel and a protector for protecting the outer periphery of the pressure vessel, wherein the protector comprises at least a cover A, a cover B and one or more rigid members, and is attached to one end in the longitudinal direction of the pressure vessel. The cover A and the cover B are arranged at other positions, the cover A and the cover B are connected by a rigid member, and the end of at least one rigid member is positioned outside the fitting of the pressure vessel. pressure vessel unit.

Images