CZ304719B6 - Injection device for application of corrective compositions - Google Patents

Abstract

In the present invention, there is disclosed an injection device for application of corrective compositions, particularly compositions for restricting growth of blue green algae on water surfaces, said device comprising a vessel driving propulsor with at least one water jet and supply pipe of the corrective composition arranged therebehind, wherein the channel after the propulsor and/or the water jet forms a water stream through-flow channel whereby the water jet (3) has its outlet in an injector mixing chamber (4), which is connected with the corrective composition supply pipe (5).

Description

Field of technology

BACKGROUND OF THE INVENTION The invention relates to an injection device after application of corrective agents, in particular to compositions for limiting the growth of cyanobacteria on water surfaces, comprising a vessel propulsion behind which at least one water nozzle and supply lines of the correction agent are arranged. water flow channel.

The prior art

Water pollution by cyanobacteria, plankton, algae, oil, etc. threatens aquatic animals and at the same time threatens the health of water users, which is increasingly reflected in recreational areas.

Basically, two methods are used to eliminate the contamination of water bodies. One way is to powder water surfaces with correction agents from aircraft, the other way to powder correction agents from vessels.

Airborne dusting is disadvantageous due to the frequent dispersion of the correction agents beyond the water surfaces, which leads both to environmental hazards outside these areas and significantly increases the amount of correction agents required to effectively remove contaminants on the water surfaces and thus substantially increases the cost of the process.

Powdering of correction products from vessels is very time consuming, the whole process is unproductive and it is realistic to apply it only on smaller water bodies.

Therefore, a further method of introducing corrective agents into the affected water surfaces has been proposed, consisting in utilizing the propulsion tract of the vessel, where a correction agent is fed to the affected water stream in a channel with a propulsor, eg an axial pump. . The advantage of this method of introducing the correction jigs into the water is the possibility of relatively accurate introduction of the jig into the affected areas. By using the propulsion tract of the vessel the device is simple, easy to apply and the introduction of the correction jigs is low labor. low energy intensity.

These known devices are suitable for applying correction formulations in the form of solutions and fine granules to a certain flow rate of correction formulations, the increase of this flow rate being limited by the existing design of the injection device, especially when applying correction formulations with pulpy or lump coexistence.

In other known devices, for example the device according to CZ 300592, only storable preparations or mixtures with a long exposure time or only gaseous components can be used for water treatment, as mentioned, for example, in the device according to JP 2001260987.

Therefore, it is not possible to use binary or post-phytectorial preparations suitable for water treatment, including the disposal of cyanobacteria, which cannot be prepared in advance and stored.

It is an object of the present invention to design an injection device that allows the flow rate of correction agents to be increased, including slurries, possibly with lumpy coexistence, or binary or prophylactic substances.

- 1 GB 304719 Β6

SUMMARY OF THE INVENTION

The essence of the injection device for applying the correction jigs according to the invention is that the water nozzle opens into the mixing chamber of the injector, which is connected to the supply line of the correction jig. The mixing chamber and the water nozzle form a unit rotatably mounted on the channel of the propulsor, or the mixing chamber is provided at its outlet end with a pivotable injector nozzle.

Preferably, the injection device is provided with a control flap rotatably mounted on the water nozzle or at the outlet end of the injector.

Alternatively, a water suction inlet extends into the mixing chamber in addition to the supply line. The injection device can also be designed as multiple.

The advantage of this injection device for the application of the correction device is that it can be applied to various types of vessel power units, its ability to disperse the correction devices relatively accurately into the affected areas and to increase the flow rate of correction products, including slurries. . It is also possible for multiple devices to apply multiple correction devices simultaneously.

BRIEF DESCRIPTION OF THE DRAWINGS

1 shows a longitudinal section of a part of the injection device, FIGS. 2 to 9 show each other alternate embodiments of a part of the injection device in a longitudinal section, and FIG. Figures 10 to 13 show, in plan view, individual further alternative embodiments of a part of the injection device in longitudinal section.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 shows a channel 1 in which a motor-driven propulsion 2 (not shown) is arranged for propelling a vessel. The channel 1 terminates in a fixed water nozzle 3, which opens into a mixing chamber 4, in which the water coming through the channel I and the correction agent coming through the inlet pipe 5 into the annulus formed by the jacket of the mixing chamber 4 and the jacket of the water nozzle 3 are mixed. The mixing chamber 4 is a reaction chamber or a working chamber until the correction medium is only generated. It is therefore not a matter of sucking the medium into the mixing chamber, but of introducing the preparations for technological processing.

At the end of the mixing chamber 4, a swiveling nozzle 7 is rotatably mounted about a vertical axis, on which a regulating flap 8 is swiveled about a horizontal axis. The swiveling nozzle 7 acts both for steering the vessel and for directing the outgoing mixture of water and correction agent into the surrounding water. The regulating flap 8 then acts as a reverser of the vessel's operation and also in the function of directing the outlet of the mixture of water and correction device in the vertical direction. The mixing chamber 4 is connected to the channel 1 by a sealing collar 9, which prevents water from entering the mixing chamber 4, except for the water coming through the channel L. The whole described device constitutes an injector which allows dosing of the correction agent in virtually any phase or structure. in the liquid phase, the powder phase, the slurry, in the form of granules and the like. The hitherto known injectors do not in themselves permit efficient mixing of the substances to be treated, but this permits an arrangement with the mixing chamber 4 in which a correction medium is formed. To date, it is only possible to add chemically stable formulations to the water stream downstream of the propulsion. Only the use of the device according to the invention allows the use of binary or polyfactorial substances reacting in the mixing chamber 4.

. 2.

In an alternative embodiment of the injection device according to FIG. 2, the water nozzle 3 is rotatably mounted at the end of the duct 1 about a vertical axis. Here again, the water nozzle 3 is firmly connected by means of connecting ribs 6 to the mixing chamber 4, which at the same time fulfills the function of the swiveling nozzle 7 according to FIG.

1. On the mixing chamber 4, a regulating flap 8 is rotatably arranged about a horizontal axis.

In another alternative embodiment according to FIG. 3, the difference from the embodiment according to FIG. 2 is that the control flap 8 is rotatably mounted about a horizontal axis on the water nozzle 3 and lies entirely in the mixing chamber 4.

In another embodiment of the injection device according to FIG. 4, the mixing chamber 4 is connected to the supply line 5 for supplying the correction device.

In the embodiment of the injection device according to FIG. 5, the inlet duct 5 opens into the mixing chamber 4, and the inlet 10 for the addition of additional water suction, at the same time, enters the mixing chamber 4, in addition to the water coming through the channel 1.

In the embodiment of FIGS. 6 to 9, further embodiments are shown with an alternative arrangement of the injection device on the vessel 11, and in all of these embodiments various configurations of the inlet 10 for the intake of additional water are evident. FIG. 7 shows the position of the mixing chamber 4 on the vessel 11 by means of the connecting element 12, independently of the position of the water nozzle 3 and the swivel nozzle 7.

Figures 10 to 12 show plan views of possible other embodiments of the injection device, Figure 13 shows a multiple injection device according to the invention, wherein the number of individual injection devices is doubled, each injection device comprising its own mixing chamber 4 and its own supply The two injection devices are then provided with a common inlet 10 for sucking in water. It is also possible within the scope of the invention to have a multiple design with one inlet pipe to all mixing chambers 4.

In addition, the device according to the invention may allow, for example, simultaneous generation of metal ions and hydrogen peroxide in one step (otherwise the bulky and massive tanks for ionic solution and hydrogen peroxide would have to be separate or, in the case of enzymes, opens the possibility of their application despite their limited lifetime.

Claims (6)

PATENT CLAIMS An injection device for applying corrective agents, in particular cyanobacterial growth agents, comprising a propulsion for propulsion of a vessel and an injector or ejector, wherein at least one water nozzle and a correction junction supply line are provided downstream of the propulsion, the channel downstream of the propeller and / or the water nozzle forms a water flow passage, characterized in that the water nozzle (3) opens into a mixing chamber (4) of the injector, which is connected to the supply line (5) of the correction device. Injection device for applying correction jigs according to claim 1, characterized in that the mixing chamber (4) and the water nozzle (3) form a unit rotatably mounted on the channel (1) of the propulsor (2). Injection device for applying correction devices according to claim 1, characterized in that the mixing chamber (4) is provided at its outlet end with a pivotable nozzle (7) of the injector. - J CZ 304719 B6 Injection device for applying correction jigs according to one of the preceding claims, characterized in that it is provided with a regulating flap (8) rotatably mounted on the water nozzle (3) or at the outlet end of the injector. 5. Injection device for applying correction jigs according to one of the preceding claims, characterized in that a water suction inlet (10) opens into the mixing chamber (4). Injection device for applying correction devices according to any one of the preceding claims, characterized in that the injection device is multiple.