SU6198A1 - A device for transmitting the readings of manometers, thermometers, etc. appliances - Google Patents

Description

FIG. 1 of the schematic drawing shows a side view of the proposed device for transmitting the manometer / gas analyzer distance to the distance and FIG. 2-side, rear and front views of the camera with a photocell, with the following designations: 1 - photocell, 2-connecting casing for the manometer tube, 3-lightproof chamber for placing a photocell in it, 4-electric light bulb (matte), 5-self-written an electric device for obtaining a graph of carbon dioxide% in gases, a source of electric energy, a 7-tube for flue gases and air, an 8-micromanometer with a sprinkled liquid and a 9-measuring glass tube.

FIG. Figures 3 and 4 show the longitudinal and transverse sections of the pyrometer with a scale equipped with the proposed device, with the following designations: 1-photocell, 3, light-tight chamber, P-pyrometer and A-slit.

The proposed device consists of a photocell 1 connected to a galvanometer circuit or a current meter and changing its electrical resistance as the lighting changes. The photocell 1 is located in the closed chamber 3. To the gap A of the closed chamber 3, a tube of a manometer or the like of the device is attached, illuminated from outside by a light source, for example, a light bulb 4.

According to FIG. 1 and 2, the photocell is installed against the glass measuring tube 9 present in the gas analyzer and connected to it by means of a connecting casing 2. The photocell 1 is enclosed in a light-proof (wooden) case-chamber 3 with a slit in the direction of the measuring tube 9. On the other side (opposite) of the measuring tube is a matte electric light bulb 4. Light from the light bulb passes through the glass measuring tube 9, through the slot in the case and connecting casing 2, in which the photocell is placed and falls on the photocell, o to broadcast it. The colored liquid moving through the glass tube of the gas analyzer, depending on the operation of the boiler (i.e. burning in the furnace), will transmit more or less light and will open the photocell or darken it; thus, the photocell will be illuminated stronger or weaker and, in turn, will pass more or less electricity through itself. The recorder electric device 5, which receives current from any source b, included in one circuit with a photocell, under the influence of varying current strength (and the current varies depending on the intensity of the photocell illumination), notes these changes, i.e. shows the level at which the colored liquid stands in the measuring tube of the gas analyzer.

According to FIG. 3 and 4, the light from the electric bulb penetrates through the transparent glass tube of the pyrometer and the slit A, in the back wall of the pyrometer, to the photocell 1. Mercury, moving along the glass tube of the pyrometer, blocks access to the photocell; This barrier is the greater, the higher mercury has risen, i.e. the higher the temperature of the measured medium. With more light, the photocell transmits more electricity; with less light, less. A galvanometer and a self-recording electric device, connected in the same circuit with the photocell and receiving current from one source, take into account the change in current, i.e. their arrows give readings corresponding to the readings of the mercury column of the pyrometer or thermometer.

The subject of the patent.

A device for transmitting the readings of pressure gauges, thermometers, etc. of devices, characterized by the use of a photocell connected to a galvanometer or current meter that changes its electrical resistance when the light changes, which photocell is located in a closed chamber, to the slit A of which a tube is attached a manometer, thermometer, or the like of the instrument, externally illuminated with a light source.

t

i

FIG. 2

T g