Device for storage and transport of gas under pressure

 

The device includes a tank of gas in the form of a system of interconnected pipes, placed in the casing. On the surface of the pipe and/or in the annular space are reinforcing fibers of fiberglass, nylon, nylon, Dacron (in the form of monofilaments, and chopped filament yarn, wire harnesses) and/or tissue based on them. Pipe with a reinforcing material in the casing is filled polymer compound. The use of the invention will significantly reduce the weight and cost of the device, improve the safety and ease of operation. 1 Il.

The invention relates to the production of pressure vessels for the storage and transportation of gas and can be used in various industries, particularly the chemical, petrochemical and automotive.

To ensure compressed gas vehicles, non-stationary installations, domestic and industrial consumers remote from the main gas pipelines, use special mobile capacity.

Known combined container for the storage and supply of liquid and gaseous environments of high pressure [1].

This container contains the inner metal layer and an outer composite layer. Probolsky weight of the metal layer with two shells and complexity of manufacture of the container, on the one hand, because of the need to enter the inner cavity of the shell granular material to completely fill and seal, with the subsequent removal, and on the other hand, due to the difficulty of winding the tape of the composite layer on the curves of the container and subsequent heat treatment in a heat chamber for curing a composite material.

It is also known a device for the transportation and storage of natural trudnosgoraemyh gases [2] was chosen for the prototype.

The known device contains multiple containers, each of which is made in the form of a system of closed and laid in a spiral or in the form of a cylindrical coil of circular pipes with a diameter of 100-150 mm Pipes each tank is divided into sections that, through shut-off valve device is in communication with the reservoir for receiving and issuing of gas. All equipment is placed in a protective cover.

The disadvantages of this device are large thickness of the pipe walls to withstand the pressure of the gas (more than 400 kgf/cm2with a sufficient margin of safety and, therefore, greater weight of the entire device and its high cost.

In addition, the presence of any defects in the pipe wall, including those resulting from posto the spine of the explosion.

The present invention is the task of creating a device for the storage and transport of gas under pressure, in which by changing the design and material capacity for gas provides minimum weight and low cost devices, security and ease of use.

The problem is solved in that the device for storage and transport of gas under pressure containing capacity in the form of a system of interconnected pipes, placed in the casing, according to the invention on the surface of the pipe and/or in the annular space are reinforcing fiber (in the form of monofilaments, and chopped filament yarn, wire harnesses) and/or tissue based on them, all tube with a reinforcing material filled polymer compound.

Due to the fact that the tubes are reinforced and coated with compound, the device has turned into a solid block in which the gas under high pressure is held not by the strength of the pipe wall, but due to the strength of the reinforced compound. As a result, the thickness of the walls of metal pipes will be much less than that of the prototype, respectively, less will be the weight of the device and its cost. While the tubes in the proposed device can manatnye and others), lighter 3-4 times in comparison with metal and cheaper.

As a result, the weight of the claimed device and its cost with regard to the weight and cost of the compound will be lower compared to the prototype in 2-2,5 times.

Pipe almost do not feel the load in tension, because the gas pressure inside the tube is balanced by the opposing pressure of the reinforced compound that dramatically reduces the likelihood of damage, including when exposed to repeated cyclic loads. In addition, since the compound has a low gas permeability (for example, compounds based on epoxy, phenol-formaldehyde and other resins), even if the presence or formation of any defect in the integrity of the pipes, this will ensure the integrity of the entire device. These properties of the device significantly increases the security as compared with analogue and prototype.

Pipes can be positioned according to the preset parameters of the device, providing the convenience of its operation. The total length of the pipe is selected from a specified volume of gas to be stored and/or transported.

As reinforcing fibers suitable for use fiberglass floor is Gutov) and/or tissue on the basis of them.

When searching by the patent and scientific literature have not revealed a set of features similar to the declare, which is not obvious from the prior art, on what basis is it possible to make a conclusion on the compliance of the claimed invention, the criterion of "novelty" and "inventive step".

The proposed device is illustrated in the drawing, which shows a cross-section of the device.

The device includes a tank of gas in the form of tubes 1 connected to each other. The pipe 1 can be connected in series in one pipeline and/or in parallel with the collectors at the ends of the pipes. Pipe 1 is made, for example, made of polycarbonate with a cross section in the form of a hexagon. The pipe 1 can be made of various metals or synthetic materials and in cross section to have a circle, oval, polygon, etc., the Material pipe 1 is selected from the conditions of integrity and neutrality in relation to the stored gas at the maximum device temperatures and pressures.

Pipe 1 is provided, for example, as follows. On the rough surface 1 wound fiber 2 in one or more layers. In the annular space along the pipes laid the reinforcing fibers 3 in the form of multifilament yarn and or ZG the thread, harness and/or mesh and fabric based on them, and chopped.

Method and material reinforcement, filler, direction of the surface fibers and other production parameters of the reinforced compound is selected from the conditions of ensuring the strength and integrity of the device (including long-term and/or cyclic loading) and technological production.

Fibers 2, 3 in this example is made of a complex woven glass fiber fabrics.

Pipe 1 with reinforcing fibers 2 and 3 is placed in the casing 4 and is filled polymer compound 5 such as epoxy resin with filler, modifier and curing agent.

The casing 4 from the top is closed by a cover 6, protecting the device from external influences.

The casing 4 and the cover can be made of metal and/or polymer material. The cover and/or cover can either completely absent or be replaced by some kind of protective coating and carrier function body can perform frame. In this case the pipe with reinforcing fibers can be laid directly on the base frame. If protective devices (protective coating and/or cover with lid or without lid) made of durable material (including composite), they additionally contribute to the disorder and/or pipes.

The device may have almost any shape, convenient for operation.

The size and length of pipe 1, and accordingly, the size of the devices is selected depending on the amount of gas to be stored and/or transported. These terms and conditions manufacturability and structural strength to choose the diameter of the pipes, which can be up to 250 mm and more.

After fabrication, the device is subjected to hydraulic and/or pneumatic tests.

Use the device as follows.

Through the open valves and pipe (not shown) connected with the pipe 1, the device is filled with gas such as methane, to the desired pressure and close the valves. When the gas pressure acts on the wall of the pipe 1 with a certain power, and outside of the tube 1 occurs equal in magnitude and opposite in direction to the reaction force of compound 5 fiber reinforced 2 and 3. Therefore, the wall of the pipe 1 is practically not loaded in tension, in contrast to the prototype, and this provides greater safety in the operation of the device.

The casing 4 and the cover 6 protects the compound 5 with the pipe 1 from external influences, such as physical attacks, hit agresource the possibility of making the device practically any predetermined form the proposed device is convenient to place on any transport.

When the gas consumption device via a pressure reducing valve (not shown) is connected to the consumer.

Currently, the vehicles running on compressed gas, usually set 10-12 steel tanks with a total weight of 600-700 kg or cast-iron cylinders weighing about a ton. When replacing the twelve cylinders one or two of the proposed devices, the total weight will be about 300 kg at the same volume and pressure of gas, but with a greater degree of security and ease of placement.

The proposed device can produce different volume under different pressure and type of gas, including a modular design. The device can be used to store, transport and use of gas for domestic needs, for the delivery of gas from the field or production to consumers for CNG vehicles and other industrial needs.

Sources of information 1. Patent of the Russian Federation 2058507, CL F 17 1 /00, 1996.

2. Patent of the Russian Federation 2047812, CL F 17 1/00, 1995 - prototype.

Claims

Device for storage and transport of gas under pressure, comprising a container in the form of a system of interconnected pipes, placed in the casing, otlichayusta, chopped and filament yarn, wire harnesses) and/or tissue based on them, all tube with a reinforcing fiber filled polymer compound.

 

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