HU194612B - Apparatus for controlling the level of liquids in a vessel - Google Patents

Abstract

The present invention relates to a device for controlling the level of fluid (20) in a vessel (1) having light transmitters (6) and signal transmitters (7) connected to the transducer (14). The light transmitters (6) and the light signal receivers (7) are disposed opposite each other on the transparent side wall () of the vessel (1) or the tube directly connected to the fluid (20) in the vessel (1). The light transmitters (6) and the light transmitters (7) form a signaling system (2) and a signaling system (3) located in a plane perpendicular to the resting water level (12) of the liquid (20). The device is configured such that sliders (13) on the side wall (Γ) are disposed in the slider (13) in the signaling system (2) and the signaling system (3) in a movable housing (4/2, 4/3). . The axes (11) of the transmitters (6) and the transmitters (7) are at an angle with the resting water level (12) of the liquid (20), where o <a <90 °. All light transmitters (6) in the housings (4/2, 4/3) and the light signal receiver (7) are fixed in a compartment (9). A lens (5) is formed at the outlet (inlet) of the compartment (9), which is adjustable from the light transducer (6) and the light emitter (7). Figure 1 -1-

Description

The present invention relates to an apparatus for controlling the level of liquid in a vessel.

Fluid or capacitive solutions to control the fluid level are known. The disadvantages of floating equipment are that the float may malfunction, for example, become stuck or punctured, or mechanical equipment may fail during use. In this case, the unit will not operate and the fluid will be deregulated. If such equipment is eg. regulates the liquid level of the boiler water, the flue pipes of the boiler are sufficient, which leads to the boiler failure.

Also known are solutions which include a light transducer and a light transducer in a modern way. Such a solution is described e.g. the

DE Publication No. 437 798, which discloses a light sensing system for slate filling automation. The bottle of automation tape has light transmitters on one side and light receivers on the other side. The light is thus used to check that the bottle is full, properly sealed, and shaped. Disorders are detected by transducers connected to light transmitters and light transmitters.

DE Publication No. 3,416,206 is well known in physics for the introduction of capillary tubes. It uses the moisturizing effect, that is, the water in the tube takes a concave shape. This solution also includes a light-emitting transducer and a light-transducer to indicate a concave shape.

Also in the Federal Republic of Germany

336 210 discloses a fluid level detection solution based on light reflection. Because different water levels have different reflection angles, which get into different light detectors.

It is an object of the present invention to provide an apparatus in which the light transducers as well as the light transducers are configured so that they have a proper focal position so that the liquid level control with light is free of additional errors.

It is a further object of the present invention to make the apparatus easy to adjust, easy to clean and insensitive to impurities in the liquid.

It has now been found that the object of the present invention may be achieved by using light transmitters and light transmitters connected to a transducer which form a transducer system and a transducer system, and whose position relative to each other and to the water level. Sliders facing each other on the side walls of the vessel are very suitable for changing the position of the transducer system and the transducer system. It has been found that in order to move the transducer system and the transponder system into these sliders, it is desirable to place the transducer system and the transponder system in a housing, which housing can be moved and secured therein. It has also been recognized that, in order to avoid additional defects, the light transmitters and light transducers in the housing must be housed in a compartment to eliminate the effects of diffused light. For accuracy, the aperture (or inlet) of the aperture is configured with a lens, which can be set at a distance from the transducer and the transducer.

The invention therefore relates to an apparatus for controlling the level of a liquid in a vessel having light transmitters and light transmitters connected to a transducer. The light transducers and light transducers are positioned opposite each other outside the transparent side wall of the vessel or tube in direct contact with the liquid in the vessel. The light transducers and the light transducers form a transducer system and a transducer system, which are arranged in a plane perpendicular to the resting water level of the liquid. The apparatus is configured such that sliders are arranged on the side wall into which the transducer system and the relay system are located in a movably arranged housing. The axis of the transducer system and the transducer system forms an angle with the resting water level of the liquid, where ο <a <90 ° is mounted in each of the light transducers and light transducers housed in the housings, and its distance from the light receiver is adjustable.

The apparatus preferably has a cleaning device in the container which can be moved from the outside with a handle.

The device according to the invention is possible, for example! The solution is described in detail in the accompanying drawings, wherein

Figure 1 is a schematic longitudinal section of the apparatus; and Figure 2 is a plan view of the apparatus.

In the apparatus of Fig. 1, a container 20 is filled with fluid 20 whose level is controlled. The side walls Γ of the container 1 are transparent, and a transducer system 2 is provided outside one of the side walls 1 'of the container 1, and a transponder system 3 located outside the side wall 1' of the container 1. The transducer system 2 and the transponder system 3 are arranged in a plane perpendicular to the rest water level 12 of the fluid.

The beacon system 2 comprises light beacons 6 and the beacon system 3 comprises light beacons 7. The light transmitters 6 and the light transmitters 7 are connected to a transducer 14.

The light transmitters 6 and the light transmitters 7 are mounted in compartments 9. At the output (or inlet) of the compartments 9 there is provided a lens 5, the distance of which from the light transmitters 6 and the light transmitters 7 can be adjusted by means of a spring 10.

Slides 13 'are disposed on opposite sides 1' of the vessel 1. The transponder system 2 and the transponder system 3 are housed in housings 4/2 and 4/3. The housings 4 / 2,4 / 3 can be moved in the sliders 13. ·

The axis 11 of the transducer system 2 and the transducer system 3 forms an angle with the resting water level 12 of the fluid 20, where ο <a <90 °.

-2194,612

The figure shows that the light transducers 6 of the transducer system 2 and the light transducers 7 of the transponder system 3 are connected to the transducer 1 via wire 15.

The container 1 has a cleaning device 16 for cleaning the transparent side walls 1 'of the container.

The cleaning device 16 can be moved from the outside with a handle 17.

Figure 2 is a plan view of the apparatus. The figure shows the slide 13 on the vessel 1 which can be found on either side of the vessel 1. It is also apparent from the figure how the focal length of the light transducer 6 in the compartments 9 and the lens 5 in front of the light transducer 7 can be adjusted by means of the spring 10.

The apparatus operates as follows in detail ^one 5 Rint serum.

If there is no liquid 20 in the container 1, the light from the light transducer 6 does not reach the light transducer 7 of the signaling system 3 by a line 22. If there is fluid in the container 20, the level ²⁰ of the fluid ^{20 is} controlled by adjusting and securing the housings 4/2, 4/3 in the slider 13 accordingly. If the level of the liquid 20 exceeds (or reaches) the axis of the lowest light transducer 6 and the light transducer 7 opposite to it, the light beam of the light transducer 6 passes to the light transducer 7 via path 23. In this case, if eg. it is necessary to raise the water level 12 of the liquid 20 so that the signal transducer 14 receives an actuator signal (not shown) which is not relevant to the invention and which raises the water level 12 of the liquid 20, e.g. damper, opens latch, actuates fluid pressure switch, etc.

Due to the level of 20 fluid actuator ₃₅ to rise until such. it does not reach the axis of the next 6 light transmitters and 7 light transmitters. In this case, if the aim of the control is to keep the water level 12 within a given range, the light 40 entering the middle light receiver 7 will cause the actuator 14 to stop the actuator. However, in the example illustrated in Figure 1, the apparatus further comprises an additional light transducer 6 and a light transducer 7, which provide a further advantageous display 45.

The device according to the invention has the advantage that it does not contain a moving part, so the possibility of failure is very small. A special advantage of the solution to be varied depending on the desired regulation appropriateness ⁵⁰ en 2 transmitter system, and the relative position of three receiver systems, the 20 fluid properties. The refraction of the beam of light on the transparent side walls 1 'of vessel I as well as on its entrance into the liquid 20, which are based on physical phenomena, are not described above and are therefore within the skill of the art. Another advantage of the solution 5 is that the focal points of each lens 5 can be varied by means of springs 10, and the positioning of the light transducer 6 and the light transducer 7 in the compartment 9 prevents the unwanted diffused light from disturbing.

If the liquid 20 in the vessel 1 is dirty or dirty, which would cause dirt to settle on the transparent side walls 1 ', it can be removed by actuating a cleaning device underneath.

The object of the present invention has been achieved, and the apparatus we have developed to control the level of the liquid has also stood the test of practice.

Claims (2)

Claims Apparatus for controlling the level of liquid in a vessel having transducers and light transmitters connected to a transducer, the transducers and light transducers disposed opposite each other outside the transparent side wall of the vessel or tube in direct contact with the liquid in the vessel; and forming a transponder system arranged in a plane perpendicular to the resting water level of the liquid, characterized in that sliders (13) are arranged on the side wall (Γ), into which the transducer system (2) and the transponder system (3) are movably disposed. (4/2, 4/3), the axis (11) of both the light transducers (6) and the light transducers (7) is at an angle to the resting water level (12) of the fluid (20), where ο <a <90 °, for all light transducers (6) and light transducers (7) in the housings (4/2, 4/3) is mounted in a body (9), the lens (5) is formed at the output (input) of the compartment (9) having a light-emitting transducer! (6) and its distance from the light receiver (7). (Priority: July 31, 1986) Apparatus according to claim 1, characterized in that a cleaning device movable from the outside by means of a handle (17) is arranged in the container (1).