CN2187271Y

CN2187271Y - Computer programmable controller for hot-water furnace

Info

Publication number: CN2187271Y
Application number: CN 94208406
Authority: CN
Inventors: 陈志�
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-02
Filing date: 1994-04-02
Publication date: 1995-01-11
Anticipated expiration: 2004-04-02

Abstract

The utility model relates to a computer programmable controller for hot-water furnaces, comprising a hot-water furnace, a combustion machine, a water pump and an automatic controller. The utility model is characterized in that the controller comprises a program control meter, a temperature control meter, a 12 volt voltage stabilizing circuit, a water shortage protection circuit, a water level control circuit and a hot-water and boiled-water control circuit. The utility model has the advantages that the utility model is not operated by special people; the utility model replaces the intelligence of people, orderly and automatically works based on the operation requirements, and automatically protects the hot-water furnace; the structures of the circuits are simple; the performance the reliable; the use is convenient; the labor is saved; the energy is saved; the utility model effectively eliminates the phenomenon that the fire pipe is burned out.

Description

Computer programmable controller for hot-water furnace

The utility model belongs to controller, particularly a kind of computer program controlled controller of water heater.

No matter existing water heater is the burning bavin, burns coal, oil firing, all is special messenger's manually-operated, the waste operational forces; The water yield is difficult to control in the stove, and waste fuel, energy-saving effect is undesirable; The stove middle water level is difficult to control, burns out fire tube easily.

Technical solution scheme of the present utility model is such: the water heater body of heater is provided with a computer program controlled controller.This controller comprises computer program controlled table, and the work of six time serialization control water heaters can be set; Temperature control table can be set the water temperature in the stove arbitrarily; Mu balanced circuit; The excessive low water level protection circuit, water-level control circuit; Hot water, boiling water control circuit; In water heater, be fixed with lack of water respectively and detect utmost point connection lack of water circuit; Low water level detects the utmost point and is connected the water level circuit with the high water level detection utmost point; The melting point of temperature control table connects hot water, boiling water control circuit.

The utility model has the advantages that operation, replace people's intelligence to work automatically by the sequencing of job requirement automatically without the special messenger; Automatically protect water heater; Simple in structure, dependable performance, easy to use, saving of labor, energy-conservation, eliminate fire tube by burnout phenomenon effectively.

Below in conjunction with drawings and Examples to the utility model further instruction.

Accompanying drawing is an automatic controller structure electrical schematic diagram of the present utility model.

In the accompanying drawing; air switch KH; insurance BX1; BX2; K switch 1; combustor M1; water pump M2; program control table DN; thermometer TEA; power supply indicator XH1; the water lamp XH2 that boils; combustion lamp XH3; water level lamp XH4; start lamp XH5; starting switch K2; manufacture hot water or boiling water selector switch K3; 12 volts of mu balanced circuits include transformer B; rectifying tube D1-D4; filter capacitor C; voltage-stabiliser tube IC; the excessive low water level protection circuit includes triode T1; resistance R 1; R2; relay J 1; detect utmost point A; water-level control circuit includes triode T2; T3; diode D5; relay J 2; J4; J5; resistance R 3-R5; low water level detects utmost point B; high water level detects utmost point C, and the boiling water control circuit includes triode T4; T5; relay J 3; J6; J7; thermometer TEA; resistance R 6-R10.

Its operation principle is when closing a switch KH, during K1, power supply is connected power supply (under the situation that program is opened) through program control table DN, lamp XH1 is bright, 220 volts of voltages are through the B step-down simultaneously, rectification, 12 volts of DC voltage supply control circuits of voltage stabilizing output, relay J 2, the J3 adhesive, J2-2 connects simultaneously, the J5 adhesive, water pump M2 work, the starting switch K2 that closes, lamp XH5 is bright, when water level rises to when detecting utmost point A, relay J 1 adhesive, J1-2, J3-2, the J4 adhesive, combustor M1 work, lamp XH3 is bright, water heater or boiler, when Chi Zhongshui arrives high water level detection utmost point C, triode T2 conducting, T3 ends, and relay J 2 discharges, J2-2 disconnects, J5 discharges, and J5-1 disconnects, water pump M2 quits work, when water level is fallen when low water level detects utmost point B, electric current is added to the b utmost point of T3 by resistance R 4, make the T3 conducting, the J2 adhesive, J2-2 adhesive, J5 adhesive, J5-1 connects water pump M2 work.During the manufacture hot water, when water temperature in the stove reached thermometer TEA predetermined temperature, JTEA2 disconnected, and J4 discharges, and J4-2 disconnects combustor M1 and quits work, and when temperature was lower than predetermined temperature in the stove, JTEA2 connected, J4 adhesive, J4-2 adhesive, combustor work.

When boiling water, the K3 that closes, relay J 6 adhesives, J6-1 connects, when water temperature in the stove reached 100 ℃, JTEA1 connected, triode T4 conducting, and T5 ends, J3 discharges, and J3-3 connects, the J7 adhesive, and by J3-1, J7-2, R6 self-locking, J7-1, R3 lock to water circuit simultaneously.T2 conducting, T3 end, and J2 no longer works, and J7-3 connects, lamp XH2 is bright, and J3-2 disconnects simultaneously, and J4 discharges, J4-2 disconnects, machine M1 burn-out.

Embodiment, shown in accompanying drawing, combustor M1 is fixed on the stove gate of water heater, water pump M2 connects the water inlet of pond and stove, program control table DN, temperature control table TEA, power lights XH1, water boil TXH2, combustion lamp XH3, water level lamp JXH4, start lamp XH5 and K switch 1, starting switch K2, manufacture hot water or boiling water K switch 3 are installed on the panel of controller box, relay J 1-J7 is installed in the casing, and the element of control circuit is welded on the circuit board, and is fixed in the casing.The outer shell joint positive source of water heater, lamp XH2, XH3, XH4 respectively with contact J7-3, J4-1, J2-1 is connected in the circuit, K switch 2, contact JTEA2, J1-1, in J3-2 and relay J 4 sequential circuits, contact J4-2 is connected with combustor M1, contact J2-2 is connected in series with J5, contact J5-1 connects water pump M2, K switch 3 is connected with J6, contact J3-3, J6-1 and J7 are connected in the circuit, lack of water detects utmost point A and low water level detects utmost point B, high water level detects utmost point C and puts into water heater or boiler, in the pond, and be fixed on the water level position of required control, be connected with each control circuit respectively.

Claims

1; plant the computer program controlled controller of water heater; comprise water heater; combustor; water pump and automatic controller; it is characterized in that: automatic controller includes program control table DN; temperature control table TEA; the transformer B of 12 volts of mu balanced circuits; rectifying tube D1-D4; capacitor C; voltage-stabiliser tube IC; the triode T1 of excessive low water level protection circuit; relay J 1; resistance R 1; R2; detect utmost point A; be serially connected in the circuit; the triode T2 of water-level control circuit; T3; relay J 2; J4; J5; resistance R 3-R5; diode D5; low water level detects utmost point B; high water level detects utmost point C; water pump M2; and be connected in the circuit; the triode T4 of hot water boiling water control circuit; T5; relay J 3; J6; J7; resistance R 6-R10; thermometer TEA; by J7-1; R3 and J7-2; J3-1; R6 constitutes latching circuit respectively, and is connected in the circuit.

2, according to the computer program controlled controller of the described water heater of claim 1, it is characterized in that in the circuit power lights XH1, water boil lamp XH2, combustion lamp XH3, water level lamp XH4, start lamp XH5, temperature detect switch (TDS) K1, starting switch K2, manufacture hot water or boiling water K switch 3, program control table DN, thermometer TEA are installed on the controller box panel, relay J 1-J7 is installed in the casing, and the element of control circuit is welded on to be fixed on the circuit board in the case and connects with lead is corresponding.

3, the computer program controlled controller of water heater according to claim 1, it is characterized in that, the outer shell joint power positive end in water heater or boiler pond, lack of water detects utmost point A, low water level and detects utmost point B, high water level and detect utmost point C and put into water heater or boiler, pond, be fixed on the position of required control water level, be connected with control circuit respectively.