CN2431530Y - Automatic controller for domestic gas boiler - Google Patents
Automatic controller for domestic gas boiler Download PDFInfo
- Publication number
- CN2431530Y CN2431530Y CN 00243139 CN00243139U CN2431530Y CN 2431530 Y CN2431530 Y CN 2431530Y CN 00243139 CN00243139 CN 00243139 CN 00243139 U CN00243139 U CN 00243139U CN 2431530 Y CN2431530 Y CN 2431530Y
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- circuit
- control circuit
- water
- heating
- automatic controller
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Abstract
The utility model relates to an automatic controller for a domestic gas boiler. Then input terminal of a control circuit is connected with a hot water flow switch, a heating water flow switch, a water temperature sensor and a temperature setting circuit, and the output terminal is connected with an igniter, an igniter fan, a circulation water pump and a gas proportional valve. The utility model comprises a heating and hot water switching circuit controlled by a water control switch, a temperature sensor, temperature setting control circuit, a gas proportional valve regulation circuit, a fan regulation circuit, a heating pump control circuit and an ignition control circuit; the temperature sensor is connected to a pipe of the heat exchanger. The utility model has the advantages of fast water temperature regulation reaction, strong versatility and adaptability, adaptive ability of gas demand tracking and favorable energy-saving effect.
Description
The utility model relates to a kind of domestic gas boiler automatic controller.
Domestic gas boiler is mounted on the own balcony of each resident family, and the use of heat supply and hot water is provided for whole room.The following problem of existing domestic gas boiler ubiquity:
1, energy-conservation effect is relatively poor, and combustion gas is wasteful.
2, use inconvenience, complicated operation, man-machine interface is unfriendly.
3, combustion gas quality is had relatively high expectations, if combustion gas quality is bad, this device then is difficult to smooth igniting.
4, to the stability requirement height of tap water pipe line system current, often because the fluctuation of factors such as water flow pressure and misoperation.
The purpose of this utility model is to provide a kind of domestic gas boiler automatic controller at the deficiency of prior art, it is safe and reliable, it is fast that water temperature is regulated reflection, corresponding applied control object versatility and strong to environmental condition adaptability, and the adaptive ability with combustion gas Steam Generator in Load Follow, good energy-conserving effect.
The purpose of this utility model is achieved in that a kind of domestic gas boiler automatic controller, the input of its control circuit is connected to hot water water flow switch, heating water flow switch, cooling-water temperature sensor, temperature setting circuit, and output is connected to igniter, igniter blower fan, water circulating pump and gas ratio valve.Wherein control circuit comprises by the heating of water-control switch control and hot water commutation circuit, gas ratio valve regulating circuit and Fan Regulation circuit, the heating pump control circuit that starts or stops the heating pump work and the ignition control circuit of igniter by temperature sensor and temperature setting circuit control.Temperature sensor is connected on the pipeline of heat exchanger.
Control circuit also comprises the big fire start-up circuit, and this circuit is made up of the ground capacity C9 that is connected on the proportioning valve input.
Control circuit also comprises anti-impact of water hammer circuit, and this circuit can be made up of the RC delay circuit that the resistance R 34, R35 and the capacitor C 4 that are connected in the heating pump control circuit constitute.
Control circuit also comprises the intermitting heating control circuit, and this circuit can be made up of the comparator circuit that is connected on temperature setting control circuit, output contact ignition circuit.
Control circuit comprises that also gas valve starts delay circuit, and this circuit connects amplifying circuit to gas valve by the igniter contact by ignition switch and optical coupling isolation circuit.
According to the technique scheme analysis as can be known, the utility model has domestic hot-water and two kinds of functions of heating concurrently, does not need manual intervention can enter the igniting heating cycle automatically; Hot water automaticallyes switch with heating.Having under the heating conditions of demand, when stopping using hot water, system recovers the heating state automatically; Low hydraulic pressure work and excessive low water level protection.The sensitivity of water-control switch, stability and sluggish working curve have guaranteed can normally to move by starting device under low hydraulic pressure, the unstable hydraulic pressure; On the other hand, little or when stopping six when current, system's autostop; The deficency protection detects by flame and realizes.When burn-out or flame are too small, during imperfect combustion, automatically shut down burnt gas valve, prevent that combustion gas from leaking; Overheat protective function, too high for preventing the water temperature in the heat exchanger, vaporize, cause accident, be provided with overheat protective relay in the system, so that overheated stopping signal to be provided, make system's burn-out heating.The utility model also has water temperature and regulates the heating of response fast and meet from motion tracking in addition.The leaving water temperature of general boiler changes along with the weight of water flow size and thermic load.This proportioning valve automatic regulating system is water temperature to be responded fast, the negative effect that the autobalance load change causes according to the variation size of regulating flame automatically of load; Man-machine interface is simple, but has comprised different temperature setting ranges; Big fire start-up circuit when having designed gas valve startup, time-delay and igniting has improved the stability of fuel gas buring, has solved the detonation and the tempering problem of burning; Anti-water hammer buffer circuit can prevent to heat under the operating mode, because the switching that the foreign impacts water hammer of water supply pipe causes is disturbed.
Below in conjunction with accompanying drawing and specific embodiments the utility model is described in further detail.
Fig. 1 constitutes block diagram for the utility model circuit.
Fig. 2 is the utility model circuit theory diagrams.
The utility model is a kind of automatic controller for domestic gas boiler, it can control realize boiler heating and The ignition of two kinds of duties of hot water adds thermal control. When sending, room thermostat (or heating switch) needs When asking signal, open heating water circulating pump and heating switching solenoid valve, by the switch activated blower fan of heating current With igniter work. In case igniting is namely opened the burnt gas valve of gas switch valve, thereby is entered combustion heating State. For the hot water operating mode: when needs use the domestic hot-water (no matter under heating or non-heating state), As long as open the tap on the hot water pipeline, the hot water water flow switch i.e. on the one hand starting ignition burning, the opposing party Face is converted to supplying hot water operating mode (cutting off the heating operating mode) with the boiler duty. The utility model adopts closed loop Control circuit, the desired desired value of water temperature setting apparatus acts on proportioning valve by comparator and automatically transfers The economize on electricity road, the valve opening of regulating gas proportioning valve, thereby the flame intensity of control combustion device; Combustion intensity Water temperature is changed feed back to comparator and carry out by being connected to water temperature sensor on the heat exchanger tube again Compare, so water temperature is regulated more rapid.
As shown in Figure 1, 2, be a preferred embodiment of the present utility model.The input of its control circuit is connected to hot water water flow switch, heating water flow switch, cooling-water temperature sensor, temperature setting circuit, and the output termination is by igniter, igniter blower fan, water circulating pump and gas ratio valve.Wherein control circuit comprises heating and the hot water commutation circuit by water-control switch control, and it relies on the signal of taps K1 and logic circuit to realize.When fetching boiling water tap, water-control switch K1 action enters heat supply water program, and IC3-6 is a logical zero, stops the operation of pump; When turn-offing hot water, K1 resets, and recovers the startup of pump, switches back the heating state.Gas ratio valve regulating circuit and Fan Regulation circuit comprise the comparison amplifying circuit of temperature sensor and temperature setting circuit and input.Temperature sensor and temperature setting circuit are made up of W5, R11, Wh, IC1A, IC2A, IC1B, IC1D, and relatively amplifying circuit is made of IC2C and T4, IC2D and T5.Under hot water conditions, relay J R1 is failure to actuate, and resistance R 11 is by short circuit; Under the heating state, relay J R1 adhesive, getting an electric shock disconnects, and in the resistance R 11 cut-in temperature initialization circuits, changes the output valve of potentiometer voltage.Comparison circuit obtains that water temperature sets that institute gives the desired value of pushing up and the actual measured value of gathering with cooling-water temperature sensor poor.
The heating pump control circuit that starts or stops the heating pump work is made up of temperature sensor Kh, triode T8, K switch 1, controller IC 4A, F, E, IC3B and relay J R1, and the ignition control circuit group of igniter is made up of K switch 1, K2, IC3A, IC4C, IC3C and relay J R2.Temperature setting circuit by
The big fire start-up circuit of control circuit is the ground capacity C9 at the proportioning valve input, because capacitor C 9 one end ground connection, when starting proportioning valve, when adding work voltage, the principle of utilizing the voltage on the electric capacity not suddenly change, the 24V operating voltage that starts proportioning valve must all be added on the gas ratio valve coil, just starting ignition, at this moment starting ignition moment can impel igniting to carry out smoothly with the valve opening work of maximum.
The design of the anti-impact of water hammer circuit of control circuit is connecting resistance R34, R35 and capacitor C 4 formation RC delay circuits in the heating pump control circuit, when water flow switch moves, JR1 resets under the heating state, because the effect of RC delay circuit, obtain one period buffer time, change action is slow, can avoid abnormal impact water hammer interference in the water supply pipe, produces misoperation.
The designed intermitting heating control circuit of control circuit is the circuit that increases in order to adapt to little load heating situation.When heating temperature is too high, burn-out; When temperature reduces to enough low, igniting again again.This circuit can be made up of the comparator circuit IC1C, the IC2B that are connected on temperature setting control circuit, output contact ignition circuit.
The gas valve of control circuit starts delay circuit and places in the igniter, meet amplifying circuit T6, T7 to gas valve SV by the igniter contact by ignition switch P5, P6 and optical coupling isolation circuit Q1, Q2, the signal of Yan Chiing has delayed several seconds than probe ignition signal like this, during this period of time, blower fan has quickened to finish, and got rid of stack gases in advance, and burner is caught fire, be in the active combustion state.
The proportioning valve auto-adjusting circuit that the utility model adopted, passing ratio set water temperature and actual water temperature difference are regulated the gas supply amount, make water temperature reach the setting requirement rapidly, have improved the temperature controlled degree of accuracy simultaneously.The utility model can be according to the conversion of load, automatically regulate the size of flame, thereby make of the variation of the consumption of combustion gas with load, has adaptive ability, the conversion of the automatic follow load of gas supply amount just, assurance equipment is in optimum Working all the time from the control performance, reaches purpose of energy saving.
Claims (6)
1, a kind of domestic gas boiler automatic controller, the input of its control circuit is connected to the hot water water flow switch, the heating water flow switch, cooling-water temperature sensor, temperature setting circuit, output is connected to igniter, the igniter blower fan, water circulating pump and gas ratio valve is characterized in that: control circuit comprises heating and the hot water commutation circuit by water-control switch control, gas ratio valve regulating circuit and Fan Regulation circuit by temperature sensor and temperature setting circuit control, start or stop the heating pump control circuit of heating pump work and the ignition control circuit of igniter.
2, domestic gas boiler automatic controller according to claim 1, it is characterized in that: temperature sensor is connected on the pipeline of heat exchanger.
3, domestic gas boiler automatic controller according to claim 1, it is characterized in that: control circuit also comprises the big fire start-up circuit, this circuit is made up of the ground capacity C9 that is connected on the proportioning valve input.
4, domestic gas boiler automatic controller according to claim 1, it is characterized in that: control circuit also comprises anti-impact of water hammer circuit, and this circuit can be made up of the RC delay circuit that the resistance R 34, R35 and the capacitor C 4 that are connected in the heating pump control circuit constitute.
5, domestic gas boiler automatic controller according to claim 1, it is characterized in that: control circuit also comprises the intermitting heating control circuit, this circuit can be made up of the comparator circuit that is connected on temperature setting control circuit, output contact ignition circuit.
6, domestic gas boiler automatic controller according to claim 1 is characterized in that: control circuit comprises that also gas valve starts delay circuit, and this circuit connects amplifying circuit to gas valve by the igniter contact by ignition switch and optical coupling isolation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00243139 CN2431530Y (en) | 2000-07-17 | 2000-07-17 | Automatic controller for domestic gas boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00243139 CN2431530Y (en) | 2000-07-17 | 2000-07-17 | Automatic controller for domestic gas boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2431530Y true CN2431530Y (en) | 2001-05-23 |
Family
ID=33603107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00243139 Expired - Fee Related CN2431530Y (en) | 2000-07-17 | 2000-07-17 | Automatic controller for domestic gas boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2431530Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101118127B (en) * | 2006-07-31 | 2010-10-13 | 海尔集团公司 | Full-premixing condensing type heating and hot water dual-purpose device |
| RU2514586C1 (en) * | 2013-04-11 | 2014-04-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тульский государственный университет" (ТулГУ) | Info-measuring and control system for heat production optimisation at heat supply structures |
| CN104022542A (en) * | 2013-02-28 | 2014-09-03 | 三美电机株式会社 | Charge/discharge control circuit and method for controlling charge/discharge |
| CN110594855A (en) * | 2019-07-16 | 2019-12-20 | 华帝股份有限公司 | Control method of gas heating stove with variable bathing heat load and gas heating stove |
| CN113432308A (en) * | 2021-07-30 | 2021-09-24 | 广东万和新电气股份有限公司 | Gas water heater and control method and control device thereof |
-
2000
- 2000-07-17 CN CN 00243139 patent/CN2431530Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101118127B (en) * | 2006-07-31 | 2010-10-13 | 海尔集团公司 | Full-premixing condensing type heating and hot water dual-purpose device |
| CN104022542A (en) * | 2013-02-28 | 2014-09-03 | 三美电机株式会社 | Charge/discharge control circuit and method for controlling charge/discharge |
| CN104022542B (en) * | 2013-02-28 | 2018-02-06 | 三美电机株式会社 | Charge-discharge control circuit and charge/discharge control method |
| RU2514586C1 (en) * | 2013-04-11 | 2014-04-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тульский государственный университет" (ТулГУ) | Info-measuring and control system for heat production optimisation at heat supply structures |
| CN110594855A (en) * | 2019-07-16 | 2019-12-20 | 华帝股份有限公司 | Control method of gas heating stove with variable bathing heat load and gas heating stove |
| CN110594855B (en) * | 2019-07-16 | 2021-07-16 | 华帝股份有限公司 | Control method of gas heating stove with variable bathing heat load and gas heating stove |
| CN113432308A (en) * | 2021-07-30 | 2021-09-24 | 广东万和新电气股份有限公司 | Gas water heater and control method and control device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |