Water electrolytic generator gate

FIELD: metallurgy.

SUBSTANCE: proposed device is composed of vertical cylinder divided by two vertical baffles into three chambers. Branch pipes arranged concentrically one in another are attached from below to centre of both baffles. Lower chamber is partially filled with fluid. Note here that end of the branch pipe attached to lower baffle is immersed in lower chamber fluid while branch pipe attached to upper baffle extends through medium chamber and into the branch pipe attached to lower baffle and either does not reach fluid surface in outer branch pipe or terminates several centimetres below fluid surface. Lower and medium chambers are communicated via long tube.

EFFECT: compact design, higher reliability, ease of maintenance.

3 cl, 2 dwg

The invention relates to a gas-flame processing of materials hydrogen-oxygen flame, when HHO (oxyhydrogen gas) is produced by electrolysis of water electrolysis water generator (the term "electrolysis water generator" - according to GOST 2601-84, term No. 160).

Safety shutter prevents the ingress of explosive waves in the cell of the generator during the reverse stroke of the flame, is an indispensable element in the design of the electrolysis water generator. Check valves of various designs are not suitable for this, as the blast wave in a hydrogen-oxygen mixture is spread so rapidly that the valve fails to operate. Dry safety gates also cannot be used for this purpose because of their narrow channels gradually become clogged with alkali, which is always there in the gas coming from the generator. Therefore, to protect water electrolysis generators using liquid relief valves.

Most known constructions liquid relief valves based on the emergence of a separate, not touching gas bubbles in the layer of liquid (often water), which delays the blast wave at the reverse shock (copyright certificate №703563, CL SN 21/12; RF patent №2118982 class. SN 21/12). These gates operate reliably at slightly the x-flow of the gas mixture. With increasing gas flow are formed chain coupled between a pop-up bubbles and even continuous gas flow (gas cords), through which the flame passes through the water in a reverse kick. To ensure the floating of the gas in water in the form of individual bubbles at high costs is difficult. In the construction mentioned above copyright certificate №703563, CL SN 21/12, the gas stream is passed through the cap with tangential holes, which rotates under the action of the jets of gas coming out of it, preventing the formation of gas cords. This cap plays the role of a check valve, preventing the emission of water pipe for supplying gas. A common disadvantage of all such liquid valves - entrainment of liquid in the form of drops or spray and the need for frequent maintenance. Typically, the water level required to check at least twice per shift and after each kick back and check valve twice a month to disassemble, wash and clean (' I.I., Sakazov V.F. Industrial ones. M.: Chemistry, 1966, pages 116-117, 123,131).

The closest adopted for the prototype of the proposed shutter is a liquid safety shutter with serpentine moderator (Konschak M, Scheruhn W. Safety valves and their importance in welding and cutting. Schweissen und Schneiden. 1953, 5. No. 5). It consists of a TLD is partially filled with water communicating vessels, the upper part of which, empty water, connected by a long, coiled coil, pipe. The gas enters into one of the containers below the water level, through the check valve, passes through the water, then through the pipe connecting the tank, enters the upper part of the second container (above the level of water in it) and through the pipe this capacity comes on consumption. During the reverse stroke of the pressure surge in the second capacity squeezes out of the water in the first tank and the water pressure, the check valve stops the flow of gas earlier than in the coiled pipe before it reaches the flame. The gas in the first tank summed up so that when you increase the flow of gas is formed cord. Therefore, the only Executive member of this shutter, performing the cut-off of the flame from the gas path is a non-return valve. Furthermore, the design is too bulky for installation in water electrolysis generator.

The technical effect of the proposed liquid shutter are compactness, the elimination of ablation fluid, able to work under pressure hydrogen-oxygen mixture of 1.0 MPa or more, and the absence of moving parts, which eliminates the need for frequent maintenance. In particular, there is no check valve.

A schematic picture of the proposed liquid shutter is shown in figure 1. The design of the shutter is shown in figure 2.

As IDNO of Fig 1, it consists of a vertical cylindrical casing 1 is divided by partitions 2 and 3 on three levels - a, B and C. the partition 2 is welded to the pipe 4, to the partition 3 to the outlet 5. Volumes B and C connected by a long tube 6. When this tube 6 may be hook-shaped, as in figure 1, and coiled in a coil, which makes the design more compact. Volume B and the pipe 5 is filled with liquid 7, for example, water, to the level of the control pipe with lid 8. On the walls of the volumes of a and b fixed pipes or fittings 9 and 10 for the supply and removal of gas, respectively. Within the volume In front of the tube 10 and the tube 6 is installed screens 11 and 12. As the working fluid at positive temperatures using water at the negative antifreeze liquid, such as an automotive antifreeze or kerosene.

During operation of the electrolysis water generator hydrogen-oxygen mixture through pipe 9 enters the volume And passes through the pipes 4 and 5 in volume B of the tube 6 in volume and through stutzer 10 is spent on consumption. Thus, the gas in the shutter passes over the water, but not through water. Therefore, the entrainment of water is zero. When the reverse shock blast through nozzle 10 passes in volume, the pressure in volume increases sharply, squeezing out the water in the pipe 5, and the time until the blast wave through the pipe 6 will reach the volume is, the water level in the pipe 5 rises above the end of the pipe 4, shutting off the blast wave from the cell. The cavity And when the reverse shock retains water ejected from the nozzle 4.

Figure 2 shows the design of the shutter, in which the lower end of pipe 4 is located below the water level in the pipe 5, when the gas does not go through the gate. As can be seen from figure 2, the lower end of the pipe 4, is attached to the top wall 2, is immersed in the liquid 7. In this case, the gas at low flow rates passing through the fluid in the pipe 5. When increasing the gas flow rate increases the pressure difference in the pipe 5 and into the cavity, so that the liquid level in the pipe drops below the end of pipe 4 and the shutter works exactly the same as in the previous case. Entrainment of liquid in this embodiment, the construction of no, because at small cost drops completely trapped in the cavity, and high flow gas passes over the liquid, and not through it.

The ingress of working fluid from the water gate in the cell during cooling prevents the last volume A: suction fluid retained therein when turning on the cell goes back to the volume of the Century

In accordance with the above, were made water valves are designed for pressure hydrogen-oxygen mixture of 0.5 MPa and a flow rate of 1.5 to 4.5 and 7.5 nm³/hour. Tests confirmed 100%n is dejnost detention of the detonation wave at backlash the absence of entrainment of liquid during operation of the electrolysis water generator and the need to check the fluid level in the bolt no more than after 5-7 reverse shock.

1. Liquid valve for water electrolysis generator, comprising a vertical cylindrical body with upper and lower heads, nozzles for inlet and outlet of the hydrogen-oxygen mixture and socket with cover to control the liquid level in the shutter, wherein the shutter housing is divided by horizontal partitions into three levels of height, both partitions are supplied with fixed bottom, in the center of nozzles arranged concentric with each other, with the lower part of the socket of the lower partition is placed in the fluid filled in the housing to the outlet of the fluid level control, the outlet of the upper baffle is located above the liquid level, and the average and lower the volumes of the building are connected through a pipe (possibly a coil).

2. Liquid valve for water electrolysis generator according to claim 1, characterized in that the socket end attached to the top wall, immersed in the liquid.