CS223806B2 - Regulation device for the water heaters warmed by gas - Google Patents

Abstract

The gas fired boiler has a gas flow adjuster with a regulator actuated by an electrical signal. Between the regulator (23) and the adjuster (12) is fitted a hand switch (28). The latter connects the adjuster in a first switching position with the regulator. In a second position, the switch connects the adjuster to the contactor (31) which carries a signal for nominal rating. In a third position the switch delivers a signal at the potential corresponding to the lower threshold value of the rating to a contactor (32).

Description

A control device for gas-fired water heaters, with a water temperature regulator (3) controlling the gas supply actuator (12) by means of an electrical voltage signal between the nominal value and the lower water heater power threshold. In addition to the regulator (28), the actuator (12) can be connected to two other voltage sources by means of a hand switch (28), the first through the second make contact (32) supplying the rated power and the second through the third make contact (33). it supplies a voltage corresponding to the lower power threshold. This achieves that the rated power and the lower power threshold of the water heater can be correctly set independently of the instantaneous control state.

SUMMARY OF THE INVENTION The present invention provides a control device for gas-fired water heaters with a regulator affecting an actuator in the gas supply line to the burner by means of an electrical voltage signal, the regulator being a predetermined value, e.g. setpoint control the instrument power between the nominal value and the lower threshold value in at least two stages.

In gas-fired water heater has to ^b e ^t .prořez povodního potrute ptynu liořáku adjustable according ^to the calorific value of gas used. At the water heaters with a desired regulated output power depending on the position of the setpoint transmitter and the ^actual Nou ^h o ^{g d} note re ulovan ^é vehčrny. ^p s setting of the device but not instantaneous control status is clearly visible, and ^{kz t} e may pihodh that the device is incorrectly set. For example, if the temperature requirements of ^{the d} ave s ^{dp IDA} · 80% ^{to the} above one, and the device is set to 1 ° ^{1 0%, P} and ^K is .pHstroj when ^Z and ^D and ^the pulse at ¹⁰ ° ^ ^{odpovídajmtoo%} 25%.

^{Uk l} of EM vynMezu vytvořtt is ^no re ^g ula the device of the above kind so that the rated power and lower-power threshold device to properly set independently on the instantaneous control state.

According to the invention, this object is achieved by providing a hand switch between the controller and the actuator, to which the actuating member is connected to the movable change-over contact, the controller to the first switching contact, the power supply to the second switching contact. rated power and the third switching contact is connected to the middle terminal of the voltage divider, consisting of resistors and powered by the mains device.

The development of the invention then consists in assigning a timer to a manual switch. Time after en ^Article for ^D em en ^{Star determined} time m automatically rejoining the control circuit is interrupted, a manual switch.

An embodiment of the invention is illustrated in the accompanying schematic ^alkyl výtoresu and will be ^closer explained in the ^LSI and ^d m of the text.

The water heater serving as a source of heating for the hot-water circulating heating apparatus has a burner 10 whose gas supply line 11 is controlled by an actuator 12 formed by a solenoid control valve. The burner 10 heats the heat transducer 14 through which the tubular coil 15 passes through the circulating water or the circulating water, respectively. From this comes the standpipe 16 to symbolically illustrated heating elements 17, which leads from the return line or the return line 18 through ^{No. P} er ^dL and about ^{19 Kp five} Ren ^Aš ECI ¹⁴ te ^p Ia. On the environment ^and te ^N N ^U m ^p abrasion ^{is running} l ⁸ T ^e with ^{some p} efore input to transmitter 14 hot spot temperature sensor ^{22, the} esters ^also serve j and ^k s ^y sha ^C ^ tangent values ^{of p} ro te ^pl ol in ^{PA No} te ^ mm Rubio, ^{the Ter} is maintained regulator ^{23 h} o ^d No ^te predetermined setpoint transmitter 24.

The controller 23 is connected in series with the magnet winding 30 of the magnetic control valve which constitutes the actuator 12 and is connected to the mains ^Your device ^{26, the} esters of ^d of ^d RECOGNITION constant DC voltage. Between the controller 23 and the actuator 12 constituted by a magnetic control valve is provided a manual switch 23 with three switch positions, the movable switching contact ²⁹ is connected to poisons BC ^beta. he concept of the magnet coil 30 of the actuator 12 formed by a magnetic control valve and cooperating with three fixed normally open contacts 31, 32 and 33.

First fixed switching contact 31 is connected to the controller 23, the second fixed switching account ^for t ³ 2 is connected to the garbage from ^p Orem ³⁴ Mint ^h odnotou OHMT ^KEH oo ^dp oru and through this resistor is connected to the network apparatus 26 and ^TR et ^{d p} evný sprnam ^to ONTA ^ t ³³ is on pnpojen stfedrn outlet 35 at about ^five o ^{eh de} l ^Ic, bořeného two resistors 36 and 37 which is powered from the network devices manually re ^pi 26th why ^{i Pr} 2 ⁰ iřazen time read ^{40 kt} projecting into the cavity switches ručto ^{BC pi} e to ^C self ^Baseline into position when the movable switching contact 29, after the switch is actuated, occupied for some time a different position than the position shown.

SETTING maxima ^ nteo ^p r ^u cho ^d u ptynu not shown mechanism in the supply pipe 11 the gas which is situated in front of the control valve, the movable switching contact 29 of the manual switch 28 is switched to the second • s ^p NAc ^{I to} ONTA ^to t ³ the second Atónfau ^Article ene ^12, formed by a magnetic control valve is then applied a voltage signal corresponding to the full heat demand, it means that the actuator 12 is brought into a completely open ^p ocations ^y at ^the are exercised as a single ^determined U is setting mechanism included before the regulator vent ^{and rim,} thereby ^ip r ^s c ^h nu of ^ply. SETTING Dolme ^p ra ^h b ^{s h} o ^d music pHstroje the ^beta beet movable switching contact 29 of the manual switch 28 to the third switch contact 33, thereby the actuator 12 formed by Magnetto ^to YM regutečrnm valve ^p rive ^d e ^part number ^and the voltage , determined and adjusted by the resistors 36 and 37 ^kt e.ré by ^dp ovide ^a Nap ^et b ^s signal which he · u ^{l, kt} projecting into the cavity 23 conveys the actuator controller 12 as a signal for a lower threshold value of the output range. Time read ^{40 p} íevede, a ^straight advance ^p rove ^d en ^Star m! ^P ohybhvý ^BC e ^pi NAC ^{I to} ONTA ^{kt 29} ručrnho ^{Pla PI puter} 28 from ^five to ^Baseline a position of the ^C.I. m ^f is re ^g ula ^No. RN the circuit is closed again and the controller can perform its function again.

Claims (2)

SUBJECT A regulating device for gas-fired water heaters, with a regulator affecting by means of an electrical voltage signal an actuator in the gas supply line to the burner, the regulator being controlled by a deviation of the actual temperature value, e.g. power of the device between the nominal value and the lower threshold value in at least two stages, characterized in that between the controller (23) and the actuator (12) there is a hand switch (28) on whose movement BACKGROUND OF THE INVENTION an actuator (12) is connected to the first switch contact (29), a controller (23) is connected to the first switch contact (31), a power supply device (26) is connected to the second switch contact (32). a third pin (35) of the voltage divider formed by the resistors (36, 37) and supplied by the mains device (26) is connected to the third switch contact (33). Control device according to claim 1, characterized in that a time switch (40) is assigned to the manual switch (28).