RU17222U1 - TEMPERATURE SENSOR RELAY CONFIGURATION DEVICE WITH VEO-LIQUID FILLER - Google Patents

Abstract

A device for configuring temperature-relay sensors with a vapor-liquid filler, comprising a control unit connected by electric lines to mechanical screwdrivers, with contacts of a custom temperature sensor-relay and with a thermocouple of a refrigerating bath having a fixed temperature, characterized in that the device has a sealed cover in which mechanical screwdrivers and to which pneumatic lines for supplying and discharging air and an electric manometer connected with electric lines with Locke management.

Description

The utility model relates to measuring equipment and can be used to test or configure temperature sensors-relays for refrigeration equipment, the sensitive element of which is a thermal system with n-liquid fillers, mainly operating in the range of subzero temperatures.

The thermal system is a closed sealed system, which includes a sensing element (bellows or membrane) and a capillary tube filled with a steam-proof floor plug, for example, gaskets 12, 22, 134a., Propane, etc. T} The operating principle of the temperature control system is based on the fact that, depending on the extreme positions of the device’s claw axis (yulod or teziya), the thermal system opens or closes the contacts, respectively, turning off or turning on the compressor of the refrigeration machine. The main technical characteristic of the filler - gas is its thermodynamic characteristic ( see Fig. 1), representing the exponent defined by the formula:

where P is the absolute pressure of the filler, T is the temperature of the filler.

Depending on the temperature of the gas (Tgas), the pressure inside the thermal system changes (Рг gasХ, the sensitive element of the thermal system makes a working stroke and softens or closes the electrical contacts of the temperature sensor-relay

PisKecTHO device for setting temperature sensors and relays, containing several refrigeration bathtubs with a fixed TeMnq aiypeiMH and E1sh, with a signal lamp for connecting to the terminals of the sensor contacts The setting consists in sequentially immersing the capillary of the thermal system in the bathtub and closing-opening the electrical contacts (the signal light does not turn on - lit) by turning the adjusting screws and cam axis

P f (T) (1),

IFR / in / (n 6

of the sensor The device has a low performance factor - you need an extraordinary time for the capillary to be visible in each bath, a new adjustment percentage - atmospheric pressure is CONSTANTLY changing, therefore Kopj KrapoBKa temperatures are required in all bathtubs.

The closest to the proposed device in design and operation type is a device containing a control unit connected by electric lines to mechanical screwdrivers, with the contacts of a custom temperature sensor-relay and with a thermocouple of the refrigeration bath, TeMnq) aiypa which can smoothly change in a wide range. The thermocouple kagjllar is immersed in your refrigerator, seam the tempo temporally and rotate the sensor adjustment screws mechanically and loosely, opening and closing the sensor housings at the temperature control points. The device has a high quality temperature sensor setting, but low performance, since the temperature needs to be changed slowly, in In the case, the temperature of the control temperature point is observed. The device is not effective in terms of mass production., Especially when the annual sensor output chart is millions of pieces, as at the Oryol CJSCX relex. In addition, the adjustment of modern appliances at temperatures below minus 35 ° C is technologically advanced because of the complexity and high cost of existing refrigeration equipment.

The purpose of the utility model is to increase the performance of tuning temperature sensors and relays and to unlock functionality in mass production

The goal is achieved in that the device has a tight-fitting hood, in which mechanical screwdrivers are placed and to which pneumatic air supply and discharge lines and electromeaners are connected with electric claws, connected by electrical connections to the control unit.

Fig. 2 schematically shows a hepatic device.

the thermosystems are immersed in a scandalous barrel with a fixed Trebleau temperature, which corresponds to one of the temperature control points: the points of operation of the temperature sensor-relay (see Fig. 1). Mechanical screwdrivers are inserted into the slots of the adjustment screws and the axis of the sensor cam (Mj, M2, M ,, K.X close the device with a sealed Brynpsa. In the next 1 m, the process of setting the sensor-temperature switch is automatic using COMMUNICATION, coming out of electrical connections from The pressure unit is pressed even under the cover until the sensor contacts are opened TCMnqpaiypbi relay opens the air supply line with pneumatic pressure Pmiib corresponding to the rated pressure of the filler at its temperature Treble-G reached under the KRAZHPK th pressure, Рсп, which is controlled by a b / k electric pressure gauge, rotates the first adjusting screw to the upper set point until it is closed. If the sensor contacts stop Mt., it switches on the electric line Ршт and opens the line Ршх when the pressure is reached, М2 turns on under the cover and the second screw turns contact closure, which will stop M2 and the pressure release under the alarm will turn on until the temperature is over.

 min (.- heat cold, / (2)

Mechanical screwdriver Mock. in combination with different air pressures, based on the thermodynamic characteristics of the filler, the functional possibilities of the device for setting and checking the temperature zone of the return of the electrical contacts of the sensor-relay at any plus or minus control temperature point are expanded.

The fifth (5th) device is designed to eliminate the influence of atmospheric pressure fluctuations and has a high productivity since it does not require any additional temporary techno-mystical delays. At present, in Orlovsky Orleks CJSC, a mock-up prototype of the industrial installation of the device has been manufactured, a technical document is being developed

Claims (1)

A device for adjusting temperature-relay sensors with a vapor-liquid filler, comprising a control unit connected by electric lines to mechanical screwdrivers, with contacts of a custom temperature sensor-relay and with a thermocouple of a refrigerating bath having a fixed temperature, characterized in that the device has a sealed cover in which mechanical screwdrivers and to which pneumatic lines for supplying and discharging air and an electric manometer connected with electric lines with Locke management.