SU6548A1 - Vibrating device for transmitting the readings of the liquid level, indicator, manometer, anemometer, etc. - Google Patents

Description

FIG. 1 and 2 of the schematic drawing shows the proposed device, FIG. 3, 3-schematic drawing of the device in the application E transfer of the readings of the level of the stolny liquid; in fig. 4 - application to the indicator readings; in fig. 5 - application to manometer readings; in fig. 6 shows a partial change in the chopper and in FIG. 7 and 8 are different forms of the device.

In the diagram according to FIG. 1, an electromagnetic breaker is shown with the following designations: E-battery, L-hammers (measles), JiJ-its contact. If the current is switched to tsetse (Fig. 1), the hammer I will oscillate, and the number of its oscillations under unchanged other conditions will vary with the length E; in the closed circuit of the electromagnet M, an intermittent circuit will circulate at this time; current with the number of breaks equal to the number of oscillations of the hammer of the predator. If the length of the oscillating part of the hammer is changed with the help of the fork -B moving in the guides E, then the number of its oscillations will also change. When another electromagnet MI (Fig. 2) with a free Haz hammer is switched on at another distant end and the current is switched on in-line with an E switch. Hammer L oscillations will be obtained at the head of G, and a current with the same number of oscillations will be zeroed. and the free hammer I will be in the pulsing magnetic field of the electromagnet MI. The hammer I will come in this oscillatory motion only when the number of current oscillations in the circuit corresponds to the oscillation period of the hammer I. Change the platter In length I-: the number of oscillations of the hammer I, you can pick it up so that the number of oscillations of the hammer I will correspond to the oscillations hammer I, then the last will come in an oscillatory motion. It is possible to do otherwise: change the length of the hammer with a fork B. I will pick it up so that the hammer I will come into oscillatory motion when the hammer I works.

If the scheme, according to fpg. 2, adapt now so that the length of the hammer I of the chopper is dependent on the size of the observed values and, accordingly, could vary, the number of oscillations of the hammer Ya and ta, the number of current oscillations in the circuit will depend on the size of the measured values.

The free hammer L1 will respond to these oscillations only when “adjusting its length with the BI fork so that its oscillation period coincides with the oscillation period of the current in the circuit. If in advance the forks B and jBj make scales and calibrate on them the corresponding values of the periods of oscillations of their hammers. THAT; having installed an electromagnet M with a hammer L an interrupter at one end of the network, and an electromagnet Mj with a free hammer j at the other end of the network, including a current in the circuit and placing B in the required position, at the other end of the network, which is ten kilometers from the nerve, (tuning) fork B before the oscillations of the hammer I, t (1 according to the division where fork B stopped at that time, you can tell what division the fork B is. If the movement of the B fork is strictly related to the change in the observed values, so. to change Niemi metered quantity (water level, steam pressure and t. d.) was varied and the position in the fork, it will be possible to know the position of the fork but matched in magnitude sensed by.

In practice, the movement of the fork B on the change in measured values can vary depending on the nature of the measured values. To measure the fluid horizon in the tank, you can, as shown in FIG. 3 n I, arrange it as follows: a pulley B is installed at the top of the tank, through which a cord is pulled, having a knob P in the tank and a counterbalance counterweight against the tank outside, when the level of LIQUID in the tank changes, the float will be either lifted or lowered, the string supporting the float will move and the pulley B will rotate in one direction or another; the axis of pulley B is fastened tightly with it and, when rotated, Shchik B will rotate with it; On this axis there is a screw thread, but with which goes a nut B, fastened in parallel and connected with a fork in (Fig. 2); in this way, the change of the water level will be the movement of the fork B in accordance with the movement of the float IZ1. By changing the length of the fork, the period of current oscillations in price will change, and by adjusting the hammer I in the other end of the circuit according to the position of fork B, it will be possible to know the position of fork B. And, consequently, the magnitude of the measured fluid level. A hammer Yi electromagnet JSj-plug assembled at the other end of the network, to which current oscillations from a transfer device will be transmitted, will represent a receiving device, the device of which is shown in FIG. 7, where I and non-linear wires, supplying current, E-switch. A-milliampere. The p-knob, with which the fork B can move along the hammer I and adjust it. The handle of the handle P moves around the dial showing the dimensions of the measured values. For the automatic sound signal, when the extreme limits of the measured values are reached, there are two bells of different bells. Ring 3 rings from the hammer I. The length of this box is large and is designed to show all values of the measured values; Usually, the fork - In, stands on the last division of the dial, and if the measured value reaches the maximum limits (water flows through the top of the tank), the hammer I, being set to the maximum value, will come into oscillation and the bell 3tf will ring out when an unacceptable maximum occurs. If you wish to determine the intermediate values of the measured values, turn the knob P to the left, and when the plug B adjusts the hammer I, the latter will come in oscillatory motion and the bell 3 will inform you that the desired value of the measured value is found (this can be seen from the dial of the arrow ); bell 3 is designed to give a signal at the minimum values of the measured values; Its measles is short and constantly ringing, as it is set to the minimum values of the measured values. To automatically display intermediate values without a handheld on the receiver, you can modify its design by introducing j not completely in the magnetic pallet of the free hammers of different lengths, designed for different vibrations and “accordingly scaled (similar to the device, the number of periods nepeirfeHHoro Current).

In those cases when it is necessary to have a constant observation of some variable (for example, the temperature of coal in large heaps, the temperature of grain in the elevators, vapor pressure, etc.), the long duration of current in price is undesirable, since platinum will burn the contacts will deplete the current source, and switching off the current from the circuit makes it impossible to find out in time about the occurrence of unacceptable limits of the measured value. In such cases, in order to be able to find out in time about the onset of the extreme limits of the measured values of the appropriate circuit, the device circuit is somewhat modified, as shown in FIG. 8, where D is a transfer device with a precryweletle hammer, and I is a receiver with a free hammer. In the transfer device to the fork B. a hammer that changes the length of the chopper, the earthed wire connected to the T contact is turned on; the fork itself is insulated ot the breaker hammer, and the contact G of the hammer is connected to the contacts H and K located so that the fork can be connected to the pc terminal T at its extreme position X (respectively, at the extreme last x measured values). With this, the current will automatically turn on through the ground into the circuit, the hammer will start vibrating, and the hammer of the receiver, the device will ring with a bell about the occurrence of an unacceptable limit. Switch B on the second line will remain off. Thus, the need for a constant power supply to the circuit of current devices is eliminated, and this can be switched on for a short time in order to decrease the intermediate values of the measured values; Thus, electrical energy will be saved, the contacts will not burn, and the device will act more faithfully.

To show other values, such as: vapor pressure, water flow rate, wind, temperature, speed, etc., the transmission part of the device is changed. For example, if it is necessary to transmit the indications of vapor, air or water pressure, the billet B is moved by the rocker arm P of the indicator device (Fig. 4). Steam, air, or water enters through the tube T into the device and the pressure difference between the pairs of pistons P and J7 different in diameter moves the rocker arm P; the spring J resists this movement; the greater the pressure on the pistons, the stronger the spring F will be compressed, the more the rocker arm P will deviate and the sweat will not follow the fork B behind it and the change in the oscillations of the spring L; otherwise, everything remains unchanged.

Instead of the indicator device according to the scheme of FIG. 4 it is possible to use the same purpose for the device according to the scheme of FIG. 5, forcing plug B to transmit the manometric tube T (the principle of the manometer).

To show temperatures, the movement of the fork B can be obtained by applying the principle of expansion of air heated in a closed vessel or the principle of uneven elongation of long rods of two different materials with sharply different expansion coefficients. The elongation of a single rod relative to the other, transmitted through a magnifying transmission to a fork B, will move such and transmit the values of temperatures over the farthest distances.

When measuring wind speed, water flow, shaft speed, etc., there is no need for a breaker hammer to the electromagnet in the transfer device, since current interruptions in the circuit in these cases can be obtained automatically according to the scheme of FIG. 6, where P is the hemispheres, W collector or gear, 1C - brush. In this case, the leaner the number of current interruptions in the circuit will depend on the speed of the wind (water); Similarly, it is possible to transmit the rotational speed of the shaft, rotating the gear pinion gear or the collector from it. .

The principle of transmitting readings by intermittent currents allows simultaneously transmitting several instruments over a single wire, subject to different oscillations for each instrument. For example, the 1st device must

have from 1300 to 1500 oscillations., 2nd from 1700 to 1900 oscillations, 3rd from 2200 to 250.0, and so on; All these oscillations, transmitted simultaneously by wire, will not interfere with each other, since the receiving instruments will be tuned only within the limits of the oscillations dropped (each instrument).

PREVIEW MEASUREMENT.

 1. A device for transmitting the readings of the liquid level, indicator, manometer, anemometer, etc., over a distance. d. characterized by the use of two electromagnetic spring breakers connected in series with a current source with a variable spring length of the hammer core, of which one spring breaker is connected to a change in the measured value and the other is done manually to get a period oscillations of the hammer are the same with the period of oscillations of the MO .Yuchka of the first chopper (Fig. 1 -I 2).

2. The form of execution of the device described in paragraph 1 in the application. To indicate the level of the liquid in the tank, characterized in that the mobile fork B, the spring covering, the hammer I is fastened on the nut-B running along the screw cutting axis pulley,., through which the chain is thrown, carrying the float P and the counterweight G1 (Fig. 1 and 31).

3. The form of implementation described in paragraph 1 device, as applied to transmission of indicator indications,. characterized in that the forward plug B is fastened on one shoulder. Rocker P, the other arm of which is connected to the indicator's porn (Fig. 4).

4. The form of execution of the device described in section 1 as applied to the transmission of the manometer to the distance, characterized in that the mobile plug B is connected to the free end of the manometric Tpy6iai T (Fig. 5).

5. Modification of the device described in paragraph 1, characterized in that, in the case of transmitting indications of rotating parts, eg measures. anemometer, shaft speeds, etc., one of the spring choppers is replaced with a collector-type plate chopper worn on a part of the trap or a gear wheel K (Fig. 6).

6. The form of the implementation described in paragraphs 1-5 of the device, parallel. so that at the receiving station the BI plug, covering the spring of the hammer L, is connected to the lever

 R. novorotny on the axis and equipped with a pointer, moving against the graduated scale, with a ring of 3 in located against the hammer I- (Fig. 7).

7. In the device described in item 6, use the second bell 3 1 cup and the hammer, the spring of which is adjusted to display the smallest value of the measured value (Fig. 7).

8. The form of implementation described in clauses. 1 and 6 of the device, characterized in that, in order to indicate the largest and smallest values of the measured values and for the purpose of the deputy, can only be used for these values when the switch B is open, the plug B of the transfer chopper) is 13olted from the spring I, connected to ground and provided with a contact G, which interlocks for closing the circuit only when matched with its E or I contacts in its path, corresponding to the largest and smallest value of the measured values and connected to the contact C of the chopper (Fig. 8) .

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