CS232839B1 - Leveling: pressure combined with water heater with float automatic filling - Google Patents

Abstract

Equalize: pressure combined with a water heater with automatic float filling is a device whose purpose is to combine the function of a pressure water heater and an additional water bottle, the pressure of which is caused by air pressure. Both media have a pressure equalized for spray in single-tube cooling systems. With a pressure equalizing bottle, water must be replenished. The device according to the invention eliminates this disadvantage. The device can be used in addition to dental technology in air treatment technology, aerosol generation and automatic regulation. The purpose of the device is achieved by the fact that the first electromagnetic valve (1) is connected to the power supply via the first contact (S), the second electromagnetic valve (2) is connected to the power supply via the third contact (10), the third electromagnetic valve (3) is connected to the power supply via a series-connected switch (11) and a second contact (9). The first contact (8), the second contact (9) and the third contact (10) are part of a relay with a coil (7), which is connected to the power supply via the limit switches (4, 5, 6) of the tools used. The switch (11) is connected to the rod (26) of the membrane pressure switch (24) with a membrane (25) and an input (23).

Description

BACKGROUND OF THE INVENTION The present invention relates to a pressure equalizer combined with a water heater with a float filling automatic system which combines the function of a water heater and a water-filled cylinder having an air pressure level to balance water pressure with air pressure. bottles by automatic filling.

The systems known to date and most commonly used operate on the principle of an additional water-filled bottle which serves as a pressure equalizer for water to air pressure. The equipment is reliable, simple, but requires operator. Therefore, the aim was to introduce automatic control by introducing the so-called ratio valves, which had the task of performing analogous pressure equalization by means of membranes. The disadvantages of these devices are the necessity of manual work for reliability or unreliability in automation.

The disadvantages of these devices are eliminated by the pressure equalizer combined with the water heater according to the invention, which consists in that the first solenoid valve is connected to the power supply over the first contact, the second solenoid valve is connected to the power supply via the second contact series-connected switch and third contact. The first contact, the second contact, and the third contact are part of the coil relay, which is connected to the power supply via the limit switch © of the tools used with the spray output. The switch is connected to a diaphragm pressure switch rod equipped with a diaphragm and an inlet.

The advantage of said device is the removal of the manual filling of the pressure equalization cylinder and the merging of its function with the pressure water heater. The float automatics with relay, diaphragm switch and solenoid valve, including micro-circuit breaker, are highly reliable.

Functional diagram with pneumatic, hydraulic and electric circuits is in the attached drawing showing the functional properties of the circuits. The device is particularly important for single-tube spray cooling systems.

The device according to the diagram is connected by a pressure water supply 29 to the dental unit distribution from the water supply network. The air supply 17 is connected to a compressor or a compressed air reservoir. The outlet 20 of the air conduit 18 and the outlet 21 of the water conduit 15 are the outlets of different media, but at the same pressure. The first exhaust air solenoid valve 1 separates the air inlet 17 from the air duct 18, the second exhaust air solenoid valve 2 separates the water line 15 from its outlet 21. The third solenoid valve 3 separates the pressurized water supply 29 from the air line 22, opening into a float chamber 38 mounted to the bottom of the water heater 12.

The water heater 12 extends into the water heater 12 with its free end and the float 13 of the water heater 12 moves therein. The water heater float 13 is connected by a draw rod 16 to the closing cone 14 located in the float chamber 30. The water heater 12 inlet is connected to the air duct 18. The first solenoid valve 1 is connected to the power supply via the first contact 8, the second solenoid valve 2 is connected to a power supply via a third contact 10, a third solenoid valve 3 is connected to a power supply via a series switch 11 and a second contact 9. The first contact 8, the second contact 9 and the third contact 10 are part of the coil 7 which is connected to the mains voltage terminals 31 via the limit switches 4, 5, 6 of the spray tools used.

The switch 11 is connected to the diaphragm pressure switch rod 26 with a diaphragm 25 and an inlet 23. The inlet 23 of the pressure switch 24 is connected to a pipe 22.

The first solenoid valve 1 and the second solenoid valve 2 are switched simultaneously and the breather is provided with an outlet 27 for drainage, in order to immediately release the pressure in the line, so as to prevent the pressure water from dripping from the cooling systems. Upon removal of any of the tools used from the storage position, the respective limit switches 4, 5, 6 are closed. This connects the coil circuit 7 of the relay, which energizes and disconnects the second contact 9 and closes the first contact 8 for power supply to the first solenoid valve 1. a third contact 10 for supplying current to the second solenoid valve 2. By the action of compressed air, water is displaced into the water line 15 from the water heater 12 at equal pressure. During operation of the water cooling systems, the heater 12 decreases and the float 13 of the water heater 12 decreases. When the tool has been set aside, the respective switch from the group of end switches 4, 5, 6 opens and the circuit is interrupted. The current to the coil 7 of the relay does not flow, the first contact 8 and the third contact 10 for current to the solenoid valves 1, 2 are opened. However, it is energized via the second contact 9 and the switch 11 to the third solenoid valve 3 The pressure water supply 29 to the line 22, the inlet 23, the diaphragm 25 of the pressure switch 24 and the float chamber 30. This increases the t-lacquer applied to the diaphragm 25 of the pressure switch 24. The push-pull rod 26 opens the switch 11. current to the third electro, solenoid valve 3, which is closed. This can repeat the cycle. The filling of the water heater 12 takes place without problems, since it is connected to the free space by an exhaust pipe 28.

The equipment can be used in addition to dental-technology, in air treatment, aerosol generation and automatic regulation.

Claims (1)

Equalizing the pressure combined with a water heater with float automatic filling, with a pressurized air supply to the water level, a water outlet and a pressurized water supply, characterized in that the first solenoid valve (1) is connected to the power supply via the first contact (8); the solenoid valve (2) is connected to the power supply via the third contact (10), the third solenoid valve (3) is connected to the power supply OF THE INVENTION via a series connected switch (11) and a second contact (9), the first contact (8), the second contact (9) and the third contact (10) being part of a relay with a coil (7) which is connected to a power supply via limit switches (4, 5, 6) of the tools used with the spray outlet and the switch (11) is connected to the rod (26) of the diaphragm pressure switch (24) with the diaphragm (25) and inlet (23) connected to the pressurized water line (22) .