A locking device primarily for high-pressure cylinders
The locking device comprises a chamber located therein a sealing element and a gate, and a channel connecting the cavity of the chamber with the cylinder, and valves. The shutter is mounted for movement in the axial direction. The sealing element is made of a chemically neutral towards sealing the substance of the material. The melting temperature of the material below the melting temperature applied on the inner surface of the walls of the chamber cover, wetted sealing element. The shutter is made in the form n pins, where n=1, 2, and so on, the Unit is equipped with heater sealing element and filter out non-wetted sealing element is installed in the channel. The use of the invention will improve the integrity, thermal stability and reliability of a design and to ensure its reusable. 4 Il. The invention relates to a valve, particularly to locking devices for sealing high-pressure cylinders.Known technical solution that implements the method of sealing the tank with the liquid  , the walls of which form a recess with hole through overstretches deformation, and the recess is filled with a thermoplastic resin.The disadvantage of this technical solution is the impossibility of multiple use and its low tightness when used in pressure vessels.The closest to the technical nature of the claimed technical solution is a locking device , containing the camera with raspolozhennymi therein a sealing gasket and a movable shutter, the walls of which is a hole connecting the cavity of the chamber with the cylinder, and provided with a fitting.A disadvantage of the known method and device is low cold and low integrity, as when filling high-pressure cylinders to prevent their overheating is used, the working environment with low temperature and materials that are used for sealing the closure device, can not withstand low temperatures; and more cold-resistant materials less plastic and does not have a high sealing properties.The objective of the invention is to improve the airtightness, thermal stability and reliability, and also multiple-use, including weightlessness.This object is achieved in that the second sealing element and the shutter, mounted for movement in the axial direction, and a channel connecting the cavity of the chamber with the container, and a filling valve according to the invention the sealing element is made of a chemically neutral with respect to the sealing substance, material, melting point which is below the melting temperature applied on the inner surface of the walls of the chamber cover, wetted sealing element, the valve is made in the form of n pins, which interacts with a sealing element, where n=1, 2, etc, and put the heater sealing element and filter out non-wetted sealing element is installed in the channel.Coating, wetted sealing element on the inner surface of the chamber walls eliminates gaps and eliminate leakage of pressurized substance.In Fig. 1 shows a General view of the locking device; Fig.2, 3, and 4 versions of the shutter.The closure device of the container 1 contains the channel 2 in the form of a pipeline installed in channel 2 filter 3 and the camera 4, which is provided with a heater 5. Channel 2 connects the chamber 4 of the cylinder 1. The inner surface of the chamber walls is what trojstva 9, which has a drive 10. The camera 4 is connected with the outlet line 11. The filter 3 and the pins 8 are preferably of the non-wetted sealing element 7 of the material.The locking device operates as follows.In the initial state, when the container 1 has a resealable substance under pressure, the pins 8 are in the position shown in Fig.1, the sealing element 7 is in solid condition and closes the ends of the pins 8, sealing, thereby, the container 1. The material used as the sealing element 7 for storing, for example, hydrogen may be the alloy will Posso-61. For the opening of the cylinder 1 pin 8 using, for example, the electric actuator 10 is moved to its extreme upper position and pierce holes in the sealing element 7, after which they are moved by the actuator in the extreme lower position, releasing holes and providing pressurized substance out through an outlet pipe 11 to the consumer. The actuator, for example, can be made in the form of three-position electric actuator type F. A-0. If necessary, seal remaining in the tank pressurized substance or after filling of the container 1 pins 8 drive 10 is Fig.1 shows a heater), spreading out on the floor 6 and wetting it, and fills the holes pierced by the pins 8 at the opening of the container 1. After that, the heater 5 is turned off and the sealing element 7, cooling down, passes into the solid state, sealing the container 1. The filter 3 is designed for protection of the pipe 2 from being hit by drops of sealing element 7. Pins 8 with a diameter of 1-2 mm and a filter 3 for hydrogen storage can be performed, for example, of steel HTS. Wettable coating 6 is hermetically housed in the camera body 4, for example, using "cold" welding. For hydrogen storage, it can be done, for example, of copper mark M1. The sealing element 7 in the molten state is located on the wetted surface 6 even in a state of weightlessness. This helps to seal the cylinders in space.Possible variant of the shutter (see Fig.2) when the initial position of the pin 8 is at the bottom. In this embodiment, the pins are only available in two extreme positions instead of three, as in the variant of Fig. 1. The drive for this device can be performed, for example, in the form of two-position electric actuator type GC.3201-0. When moving the upper Phnom position. The melting of the sealing element 7 it does not leak into the holes for the pins due to the fact that the material in which there are holes, not wetted sealing element 7, and the sealing element has a surface tension not allowing them to penetrate into them because of their small size. Therefore, the diameter of the pins should not exceed 1 mmIn Fig.3 shows a variant of the shutter with the two extreme positions of the pins. In modes sealing and retention of the pins 8 are in the highest position, in the mode of flow of the working fluid from the cylinder 1 or in the filling mode it is in the lowest position. The diameter of the pins 8 is significantly greater than the diameters of the pins in previous versions (up to 6 mm and more), and at least the upper part of the pins protrude above the sealing element 7 for one motion to provide the opening holes. The upper part of the pin has wetted sealing element 7 floor and may have grooves.In Fig.4 shows a variant of the shutter when the perforation pins 8 sealing element 7 is the combination of the through-hole 12 in the pin and the cavity of the chamber 4 and the flow of pressurized substance from the score of the LTL sealing substance, in the mode of flow of pressurized substance from the container 1 or in mode of filling - in the extreme upper position. The sizes of the through holes 12 are selected based on requirements of flow of pressurized substances. A through hole may be made in the form of a groove.When creating a locking device it is necessary to consider the compatibility of materials with each other and work the body. For example, when storing hydrogen under high pressure it is necessary to take into account the sticking coefficient of hydrogen to the metal , to take into account hydrogen corrosion of metals , etc., does Not absorb hydrogen materials such as copper, tungsten. High resistance to hydrogen has aluminum.To reduce the effort of breaking the sealing element 7 pin 8 possible small heat sealing element 7 for its softening.Thus, the proposed device allows you to reliably and for a long time with a high degree of impermeability to store pressurized substance, including weightlessness. It can also be used for sealing bottles with aggressive media, etc.,Literature: 1. Japan's bid 55-17866, publ. 1980 , 14.05; 5-447 declared 18.10.73, 48-117074.2. RF patent 2164320, F 17 5/00.3. and other Receiving liquid hydrogen. - M.: Chemistry, 1967.5. Hydrogen in metals./ Ed., the Alfeld and I. Fella, in 2 volumes. - M.: Mir, 1987.
ClaimsA locking device primarily for high-pressure cylinders containing chamber located therein a sealing element and a shutter mounted for movement in the axial direction, and a channel connecting the cavity of the chamber with the container, and a filling valve, characterized in that the sealing element is made of a chemically neutral with respect to the sealing substance, material, melting point which is below the melting temperature applied on the inner surface of the walls of the chamber cover, wetted sealing element, the valve is made in the form of n pins, which interacts with a sealing element, where n=1, 2, etc, and put the heater sealing element and filter out non-wetted sealing element is installed in the channel.
FIELD: transport engineering; vehicles powered by engines operating on gaseous fuel.
SUBSTANCE: proposed multiway valve has housing with intake tubular channel connected by one end with liquid gas charger, and by other end, with tank and outlet tubular channel equipped with devices to control flow of liquid gas flow into tank and from tank. Valve contains also electronic level pickup installed in tank which is connected both with cutoffs of inlet and outlet gas flows and with tank charging level indicator controlled by control unit. Two shutoff valves are installed along intake tubular channel, respectively, first and second ones, upflow and downflow relative to intake electromagnetic valve. Pressure pickup is arranged downflow relative to charger and upflow relative to first shutoff valve. Flow limiter, two-position manually controlled valve and outlet electromagnetic valve are installed along outlet tubular channel.
EFFECT: improved accuracy and reliability of checking level of tank filling, and safety of device.
3 cl, 2 dwg
FIELD: packing means, particularly valves for container closing.
SUBSTANCE: valve to provide container filling and sealing comprises body with inlet and outlet channels, locking member and at least one valve member opening fluid flow between inlet channel and outlet channel in the first valve member position and blocking said fluid flow in the second position thereof. Inlet channel may be directly or indirectly communicated with fluid flow source. Outlet channel may be directly or indirectly connected to container. Valve member is made as independent member separately from locking member and may be brought into the second position and fixed therein if static pressure difference at valve member is below predetermined the first threshold value.
EFFECT: possibility of repeatedly container filling.
25 cl, 8 dwg
FIELD: machine building.
SUBSTANCE: present invention pertains to reinforcement and is meant for joining a tank under high pressure to connecting apparatus, connected to a user. In compressed gas tank (2) there is valve (1) with standard connecting pipe (3) and separate connecting piece (12) threaded into connecting pipe (3) of tank (2). The latter can be joined to reducer (6), distributor or filling station through detachable connecting apparatus (17, 18, 8) made on connecting piece (12) and in connecting apparatus (7). In these apparatus for the position detached from connecting piece (12) there are spring-loaded blocking apparatus for preventing gas leakage and protection from contamination. In connecting apparatus (7) there are spring-loaded blocking elements (10). Detachable connecting apparatus (17, 18; 8) on connecting piece (12) have closing umbrella-shaped blind (17) in locking ring (18) with annular clearance. In the annular clearance there is a locking ring. This ring in the detached state is held between closing umbrella-shaped blind (17) and locking ring (18) such that, when tank (2) is opened, a limited volume of gas can flow out.
EFFECT: increased reliability of connecting the tank to the user, as well as safety of using the tank in detached state.
7 cl, 6 dwg
FIELD: motors and pumps.
SUBSTANCE: valve assembly installed on the gas storage tank includes inlet channel for tank filling up with gas and outlet channel for gas discharge, inlet valve which is mounted on the inlet channel and blocks the above channel. The valve assembly also consists of an outlet valve, which is mounted on the outlet channel and blocks this channel and a connecting channel, which connects discharging side of outlet channel with the discharging side of inlet channel. There is also an isolation valve in the connecting channel. When shutoff mechanism opens connecting channel, gas is supplied to inlet channel as reversed flow and flows into the outlet channel through connecting channel. The other version of this invention provides for a valve assembly containing the first gas channel ensuring communication of outer and inner spaces of gas storage tank and being different to the outlet channel. The first valve is installed on the first gas channel and blocks it. The connecting channel connects outlet channel section from the outside of gas storage tank if it is viewed from the outlet valve side, with the first gas channel section in gas storage tank, if it is viewed from the first valve. When shutoff mechanism opens connecting channel, gas is supplied through the first gas channel, connecting channel and outlet channels in the specified order.
EFFECT: gas discharge under conditions of outlet valve failure.
27 cl, 6 dwg
FIELD: machine building.
SUBSTANCE: manifold unit of tank is designed for application in combination with tanks of vehicles using hydrogen fuel elements. The manifold unit of the tank has ports for sensors. Each of the said ports selectively receives signals from at least one sensor chosen from a group consisting of a pressure gauge and temperature sensor. At least one of the said ports for sensors is located on the high pressure side of a case of the manifold unit.
EFFECT: disclosed unit is universal and easily adapted to requirements of specific applications.
16 cl, 6 dwg
FIELD: machine building.
SUBSTANCE: charging valve comprises rod, pressure-sensitive device and intake section. Valve rod has first and second ends and channel extending there between. Pressure-sensitive device is located inside said channel on said first end and serves to measure pressure in pressurised tank. Intake section is arranged inside said channel between pressure-sensitive device and rid second end. Intake section is designed to rule out obstacles on fluid flow through the valve. Invention covers another design version of the valve and method of its modification.
EFFECT: continuous working pressure measurement without interfering with normal operation.
25 cl, 17 dwg
FIELD: machine building.
SUBSTANCE: proposed device controls body with front section and opposed lateral sections as well as multiple gas pressure indicators arranged at said front section. Cap is arranged at body outer part while pressure control handle is fitted at one of said body sides, nearby, said cap, horizontally about compressed air cylinder lengthwise axis.
EFFECT: energy absorption device allows absorbing energy of impact loads applied to pressure control handle.
20 cl, 16 dwg
FIELD: machine building.
SUBSTANCE: valve mechanism for aportable gas supply system consists of a primary inlet hole, a primary outlet hole, a control, a secondary inlet hole and a secondary outlet hole. The primary inlet hole is adapted for connection to a gas bottle. The primary outlet hole has a hydraulic connected to the primary inlet hole and adapted for connection to one or more elements for gas supply from the gas bottle. The control is arranged between the primary inlet hole and the primary outlet hole for reduction of pressure of gas supplied from the gas bottle to the primary inlet hole. The secondary inlet hole has a hydraulic connection to the primary outlet hole. The secondary outlet hole has a hydraulic connection to the primary outlet hole and the secondary inlet hole. Secondary inlet and outlet holes are adapted for connection of the valve mechanism to one or more gas bottles.
EFFECT: use of the proposed invention will allow providing continuous and uninterrupted gas supply.
25 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: one or more of the following components can be located in a valve assembly on fluid medium passage way: a pressure control, a dosing valve and an on-off device. A rotary gear is connected in-line to the dosing valve, and a manual control element installed so that it can be rotated about the axis is connected to the valve assembly and includes a gear rack that is moved by means of the above manual control element. A spring pushes the gear rack to the gear. The fluid medium control also includes Ј balanced mechanism of gear transmission for rotation of a control valve spindle; besides, it can be adapted for installation of different visual indicators signalling on the on-off state of the device.
EFFECT: improving adjustment accuracy and reducing play between internal components.
37 cl, 21 dwg
FIELD: machine building.
SUBSTANCE: present invention proposes a compact and strong gas pressure reducer to be used with a gas supply system; with that, one of the gas pressure reducer shapes is adapted to be fixed on a bottle. The gas pressure reducer includes a housing forming the front section and opposite side sections, the first gas pressure indicator fixed on lower end of the front section of the housing and the second gas pressure indicator fixed on upper end of the front section of the housing. The first gas pressure indicator and the second gas pressure indicator are installed vertically one above another. A pressure adjustment handle is fixed on one of the side sections of the housing and located horizontally relative to longitudinal axis of the compressed gas bottle.
EFFECT: energy absorption device is used for absorption of energy of impact loads acting on the pressure adjustment handle.
21 cl, 16 dwg