CN1104590C - Method and appts. for regulating heater cycles to improve fuel efficiency - Google Patents
Method and appts. for regulating heater cycles to improve fuel efficiency Download PDFInfo
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- CN1104590C CN1104590C CN98813982A CN98813982A CN1104590C CN 1104590 C CN1104590 C CN 1104590C CN 98813982 A CN98813982 A CN 98813982A CN 98813982 A CN98813982 A CN 98813982A CN 1104590 C CN1104590 C CN 1104590C
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000446 fuel Substances 0.000 title abstract description 6
- 230000001105 regulatory effect Effects 0.000 title description 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 230000000694 effects Effects 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000003915 air pollution Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 46
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
- F23N1/082—Regulating fuel supply conjointly with another medium, e.g. boiler water using electronic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/144—Measuring or calculating energy consumption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/156—Reducing the quantity of energy consumed; Increasing efficiency
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/219—Temperature of the water after heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/242—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/36—Control of heat-generating means in heaters of burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/19—Measuring temperature outlet temperature water heat-exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/22—Measuring heat losses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/10—Sequential burner running
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Hardware Design (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Control Of Combustion (AREA)
- Regulation And Control Of Combustion (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The present invention relates to a method and a device for improving the efficiency of a heating system. An electronic circuit is used for sensing an ignition signal coming from a boiler energy value sensor (26), such as a thermal switch or an automatic voltage regulator, and the circuit is used for blocking an ignition burner of the boiler energy value sensor. Simultaneously, the circuit is used for sensing an energy value at an outflow opening pipeline (20) of a boiler (6). When the ignition signal appears for the first time, the circuit is used for monitoring an energy value of an outflow opening and recording the energy value of the outflow opening. Then, the circuit is used for continuously monitoring the energy of the outflow opening until the energy is detected to be reduced from the initial energy value of the outflow opening. The circuit responds to the reduction of the energy through the ignition burner (10). The present invention has the advantages of self-adaptive response to the current heat loads, few numbers of start periods, long running time of each burner, short total running time, low fuel consumption and less air pollution.
Description
Invention field
The present invention relates to a kind of method and apparatus that is used to improve heating system efficient, specifically, relate to and utilize a boiler to heat a kind of fluid (for example water or steam) heat is transferred to the heating system in the space of a needs heating by a heat exchanger.
The background of invention
Those utilize the heating system of burner and boiler, when starting, are in their minimum effect state.Before reaching operating temperature, burner can not very be burnt cleanly.Generally speaking, when heating system was fully loaded, they can carry out work with peak efficiencies.Yet usually the specification of heating system is that area according to required heat supply designs in so a kind of mode: the Best Times that boiler suitably is matched with the heat supply load is when the temperature value that ambient temperature designs for system.The specification of a system is normally designed at the temperature conditions under the situation of worst (as desired in a given geographic area).The clean effect of this design is: all when ambient temperature surpasses this design temperature, for the heat supply load, boiler is the ultra-specification design, thereby is to hang down effect.The provable this point of periodic switch to the burner of heating boiler.
Boiler (as their part of inherence design) has a kind of heat supply medium, and in whole heat supply load, these heat supply medium play the transmission heat, thereby can heat the effect in a zone.These heat supply medium have a quality, even after boiler is closed, this quality still can keep heat.In order to utilize this thermal inertia,, various schemes have been used with proper extension closing and running time under some loading environment.
Be issued to the United States Patent (USP) 2,266,245 that is entitled as " non-peak value water heating system " of Osterheld December 16 nineteen forty-one.This patent relates to:
" by time and coolant controlled device; water volume in water tank be lower than a predetermined water yield part and non-peak period when beginning the water in the water tank be under the situation of heat; this device can cause heater to begin energization constantly at this; and be under the situation of heat when the non-peak period begins one of water volume in water tank predetermined water yield part, and the energization of heater is postponed one section adjustable, the preset time length of non-peak period after beginning.
Be issued to the United States Patent (USP) 4,108,375 that is entitled as " control appliance and the process that are used to heat a device " of keeney on August 22nd, 1978.This patent relates to the comparison to " heat supply medium temperature and device external temperature ", and " the heat supply medium are reduced to required minimum temperature.″
Be issued to people's such as Cargill United States Patent (USP) 4,381,075 April 26 nineteen eighty-three.This patent relates to one " controller based on microprocessor that is used for heating system ", is used for:
" heat exchanger temperature is modulated to a function of outdoor temperature, and provides an amortization period at the production of indoor hot water.″
Be issued to the United States Patent (USP) 4,637,349 that is entitled as " boiler period controller " of Robinson on January 20th, 1987.This patent relates to " when ambient temperature rises ", by reducing boiler stream temperature " minimizing cycle tendency ".A sensor is arranged:
" be used for compensation control system and open boiler, the temperature when guaranteeing that recirculation water enters boiler can not reduced under the predetermined temperature value.″
Be issued to the United States Patent (USP) 4,850,310 that is entitled as " for the boiler control that reduces boiler sequence quantity to fixed load " of Wildgen on January 20th, 1987.This patent is claimed:
" in order to reduce the quantity of boiler sequence in time, can be applied to boiler with the request signal that starts a sequence and go to respond a heat demand as an ambient temperature and a last heat supply end cycle since the function of the time of being died be delayed.
Be issued to the United States Patent (USP) 5,470,019 that is entitled as " equipment that is used to control heating boiler " of Martensson November 28 nineteen ninety-five.This patent is claimed " measure on second temperature levels and the time between under first temperature levels; and after the request of boiler thermal switch; postponing a time interval start-up time of the heating plant on the next cycle, this time interval is the function of the time of surveying ".This patent also relates to the temperature that detects water,tap and when being lower than predetermined water,tap temperature, stops to postpone.
Purpose of the present invention
The present invention is intended to need not reduce the quantity in cycle under measures ambient temperature or the situation of time with computing relay that measurement or dependence consumed.
One object of the present invention is constantly to measure present load and stoped the burner igniting before present load proof should start-up burner.Even the thermal mass that purpose is to utilize the heat supply medium is after boiler is closed, it also can keep heat.The present invention is used to the heat that this remains, in conjunction with the higher combustion period of effect, thereby fuel saving.To concise and to the point description of the present invention
The present invention is the equipment by microprocessor control.When hot water that it suitably is connected in a combustion gas or fuel oil or steam boiler, can provide higher fuel efficiency (because at the appointed time, total burner quantity reduces).This directly relates to the saving of fuel, energy and fund.An additional benefit of the present invention is: owing to reduced total " unlatching " time of combustion period and boiler-burner, thereby reduced the use of electricity and reduced the expense of safeguarding the aspect.
Test shows: " closing down " time (or even in request " unlatchings " afterwards) by prolonging burner, will cause every " unlatchings " of the cycle than the length " unlatching " time, but has reduced total " unlatching " number of cycles.According to example, if a burner periodically " cut out " 60 minutes, " unlatching " 12 minutes then, this will cause during 12 hours interior 10 times " operation " total degree and 120 minutes the total " unlatching " time.Therefore, if we use equipment of the present invention, can change to 80 minutes " closing " cycle time, and " " time can be 14 minutes in unlatching.When cycle of expanding to 12 hours, can obtain the sum of 7.7 cycles of operation, and total " unlatchings " time is 107.8 minutes, and this will cause natural fuel relevant with burner and power consumption minimizing 11.2%, and burner " " number of cycles has also reduced 23% in unlatching.
Use for hot-water boiler, the present invention's intercepting and interruption are by the signal of the built-in actuating burner that thermal switch sent of boiler.For the reason of secure context, the built-in thermal switch of boiler is not certainly cancelled by the present invention, and it just is interrupted.The boiler thermal switch still is responsible for the setting of the maximum temperature of boiler.The present invention is by the moment in boiler thermal switch " request heat supply ", take out a temperature reading (sensor of the outlet by as close as possible boiler of the present invention and indoor hot water heating coil pipe), determine to allow connect circuit and thereafter to best opportunity of the startup of the burner of boiler, and store these readings.By identical sensor (one or more), these readings stored and temperature reading are in succession compared.Desirable residual quantity (can be regulated by the user) between each temperature reading (when its corresponding storing value compares) is when being exceeded, and circuit will be connected.Temperature sensor is the task of execution monitoring heat supply medium temperature and indoor coolant-temperature gage also, and will be when reaching the adjustable bare minimum of user, and cancellation is to the mensuration (and connecting the burner circuit) of " temperature difference ".With regard to the flexibility of system, temperature sensor (one or more) can be replaced, with a switch that depends on pressure or thermal switch or any other device (when when reaching desirable minimum temperature, these install the electrically short circuit of the lead-in wire of sensor signal) parallel running.The number of sensor is determined by concrete installation, and is depended on application (that is only heat supply,, heat supply and indoor hot water generate or only indoor hot water generates).
Use the present invention's intercepting and interrupt the signal of the actuating burner that built-in automatic voltage regulator and indoor hot water thermal switch by boiler sent for steam boiler.For the sake of security, the built-in automatic voltage regulator/thermal switch of boiler is not certainly cancelled by the present invention, and it just is interrupted.The boiler automatic voltage regulator still is responsible for the maximum pressure setting of boiler and the setting that indoor hot water thermal switch is responsible for maximum coolant-temperature gage.The present invention is by the moment at boiler automatic voltage regulator or hot water thermal switch " request heat supply ", take out a Pressure/Temperature reading (sensor of the outlet by as close as possible boiler of the present invention and indoor hot water heating coil pipe), determine to allow connect circuit and thereafter to best opportunity of the startup of boiler-burner, and storing these readings.By identical sensor (one or more), these readings stored and temperature reading are in succession compared.Desirable residual quantity (can be regulated by the user) between each pressure or temperature reading (when its corresponding storing value compares) is when being exceeded, and circuit will be connected.Sensor of the present invention is the task of execution monitoring heat supply medium temperature and indoor coolant-temperature gage also, and will be when reaching the adjustable bare minimum of user, and cancellation is to the mensuration (and connecting the burner circuit) of " Pressure/Temperature is poor ".With regard to the flexibility of system, pressure (one or more) can be replaced, or with a switch that depends on pressure, thermal switch or any other device (when the desirable minimum temperature of reach reached, these installed the electrically short circuit of the lead-in wire of sensor signal) parallel running.The number of sensor is determined by concrete installation, and is depended on application (that is only heat supply,, heat supply and indoor).
To brief description of drawings
Fig. 1 is a system diagram, has illustrated to be installed in the apparatus of the present invention in the heating system.
Fig. 2 is a circuit diagram, has illustrated to be installed in the apparatus of the present invention in the boiler-burner circuit.
Fig. 3 is a circuit diagram of control circuit of the present invention.
Fig. 4 is the picture group (not using and use operation of the present invention) about various system temperatures.
Detailed description to accompanying drawing
As shown in Figure 1, be designed to heat a space 4 with numeral 2 heating systems of representing always.This system comprises a boiler 6.8 pairs of boilers 6 of burner are lighted a fire, with heating boiler.Described boiler is used routinely, and no matter boiler is actually is used for boiling water (for example using in Steam Heating), still only water is heated (for example in the pressure hot water heating is used).
Indoor hot water,tap is to generate by allowing cold water from indoor water supply system 19A flow through coil pipe 19B (it absorbs heats from fluid thermal transmission medium 16) and flowing out from indoor flow of hot water delivery channel 19C.When needs, can flow out by hot water tap 19D.
In a pressure hot water heating system, return by return conduit 22 from the cooling water of radiator 18, and be withdrawn into boiler 6 by circulating pump 24.
In a vapour system, the steam pressure in the boiler is submitted to radiator 18 to steam by flow export conduit 20, and steam is cooled to water again there, and is expelled back into boiler 6 by return conduit 22.
Some vapour system does not have return conduit.By the mode that is expelled back into flow export conduit 20 downwards cooling water is returned.
In a pressure hot water system, the energy value sensor is a thermal switch (thermostat), or is an automatic voltage regulator in a vapour system.Energy value sensor 26 is arranged in boiler 6, and respond to one low-yield, temperature or steam pressure, on this temperature or steam pressure, boiler 6 needs more heat.
Traditionally, sensor 26 is with the power supply of unblank power supply 27, power supply 27 will be lighted a fire to burner 8 power supplies and to burner 8, with a fuel oil or gas and AIR MIXTURES, this mixture is at above-mentioned burning and heating boiler 6 when low-yield, when energy value sensor 26 is sensed a ceiling capacity, and in ceiling capacity or termination igniting more than the ceiling capacity.
Yet in the present invention, insert a control circuit 28 between energy value sensor 26 and the burner 8 on road 30 along the line and 34.Control circuit 28 is finished the following step:
Ignition signal of induction on circuit 30 from energy value sensor 26; And
By interrupting power supply, stop boiler energy value sensor 26 start-up burners 8.The circuit that control circuit 28 disconnects from energy value sensor 26 is closed to the power supply of burner 8.
Meanwhile, on flow export conduit 20, and to be positioned on the flow export of boiler be device 38, is used to respond to an energy value at boiler flow export place.This flow export energy sensor device 38 should be a sensor that can send a signal that can be used by circuit.In a hot-water heating system, energy value is a temperature.Exist the various temperature transducers that can be used, thermoelectric couple for example, but currently in this application preferably should be a thermistor that is installed on the boiler flow export.Use a negative energy value coefficient resistance, then above-mentioned thermistor has the nonlinear characteristic of an inherence, and on lower temperature, has a bigger voltage drop, wherein nonlinear characteristic can play and be used for a kind of device that a control program responds thermistor voltage linearly, meanwhile, on lower temperature, still have the effect of the sensitivity that less temperature is descended of nonlinear characteristic and enhancing.
If use the linear energy sensor, control program can logically be responded to nonlinear characteristic so, and system is lighted a fire quickly, in response to the lower energy decreases on the lower temperature.
In a vapour system, flow export energy sensor device 38 is pressure sensors.
Flow export energy sensor device 38 is at an energy value of boiler 6 place's induced flow export pipelines 20.Flow export energy sensor 39 is responded to the energy value of indoor flow of hot water export pipeline 19C at boiler 6 places.Control circuit 28 constantly or with frequent interval, supervision is at the flow export energy value at sensor 38 and 39 places.Control circuit 28 is recorded stream leaving energy value when the first time, ignition signal occurred.When passing to control circuit 28, control circuit 28 allows the burner igniting enough voltage drop (being lower than the value when ignition signal occurs for the first time) when sensor 38 or 39.Do not provide in the installation of indoor hot water at boiler, indoor flow of hot water outlet sensor 39 will be provided or be responded to or monitor by control circuit.
Fig. 4 shows a not use flow export energy value 40 of the present invention in time, and the flow export of the present invention of use in time can be worth 42.Do not use the present invention, boiler temperature causes thermal switch 26 (Fig. 1) to close burner 8 in the time of 180 °F, and opens burner 8 in the time of 170 °F.In Fig. 4, in time T 0, boiler is just closed, and curve 44 is slowly decayed, because water still is retained in the boiler.During to T1, room temperature 45 has been reduced to 68 of lower limit, and space thermal switch 50 (Fig. 1) provide electric energy by electric wire 52 to circulating pump 24, to send request to circulating pump 24.Pump 24 is coming the cold water of automatic heat-exchanger 18 to be pressed into boiler 6.Water temperature in the boiler 6 in Fig. 4 T1 and T2 between begin to descend, represented with 44.During to T2, the boiler thermal switch detects 170 °F, and start-up burner, and when boiler reached 180 °F once more, thermal switch is very fast to be stopped at T3.When the T6, enough hot water is extruded boilers 6 (Fig. 1) by circulating pump 24, and space 4 is heated among the upper limit one Fig. 4 of thermal switch 50 72 by radiator 18.Thermal switch 50 stops circulating pump 24, and this has reduced boiler load and the cycle between T6 (Fig. 4) and T7.Yet should be noted that: what appear between T2 and the T6 in the boiler cycle 60.In these cycles each all has one can not fully burn and have the big air-polluting starting period.
Now, the performance map of " using the present invention " among Fig. 4 is compared.During to T1, room temperature 45 causes room temperature thermal switch 50 (Fig. 1) request water-circulating pump 24 through the flow export conduit 20 pump heat-obtaining water 16 of thermistor 38 from boiler 6, and thermistor 38 is pronounced a voltage to flow export temperature 42 (Fig. 4).The hot-fluid outlet causes flow export temperature 42 temperature towards boiler between T1 and T2 to rise.Finally the cold water (Fig. 1) from radiator 18 reenters boiler 6, and during to T2, boiler temperature 62 (Fig. 4) drops to 170 °F.
As shown in Figure 2, control circuit 28 interrupts from boiler thermal switch 26 to burner 8 power supply, and play the effect that stops boiler energy value sensor points hot pot stove, be included in energy value sensor 26 in boiler 6 in the power cable 48 and the disconnection 47 between the burner 8; And the effect of the above-mentioned disconnection of bridge joint convertibly.
Yet in Fig. 3, by the voltage on the switching device induction hot line 30, this switching device is driven by this voltage on the hot line, and this switching device is the electronic circuit that can accept wide range input voltage, is preferably opto-isolator circuit 70.Wide input voltage range is between 24 volts and 240 volts, and this scope can be dealt with the global any heating system power supply known to the inventor.
When optoisolator detects the request of boiler, circuit 28 monitor flows outlet temperatures 42 and the flow export temperature when being recorded in T2.Circuit 28 continues the monitor flows outlet temperature.Detect the variation of a predetermined flow export energy value when control circuit 28, promptly the predetermined temperature of between T2 that is reflected by thermistor 38 and the T3 descends, and (this variation is when the first time, ignition signal occurred to 42 (Fig. 4), energy decreases) time from the flow export energy value, the electric current of circuit 28 by block system relay 74 makes it get back to its normal closed condition and responds this variation, thereby electric energy is provided and lights a fire (because relay 74 normally cuts out, so a fault of invention will cause the normal running of hot system 2) for burner.
Cause boiler temperature to be reduced to 160 °F owing to change in the required flow export temperature, burner must keep no longer reaching its 180 the upper limit.This has caused the burner cycle 80 (Fig. 4) less between T2 and T6.By eliminating the waste that repeatedly starts, the present invention pollutes with higher effect and less air with less burner time T 6, has realized identical room temperature 45.
When system has closed long time, when being enough to allow boiler or hot-water coil pipe to reach environment temperature, the flow export energy value will be not initial value can be from the burner ignition signal time descend.Burner will never be lighted a fire.So in order to realize an initial startup, the present invention has stipulated a minimum limit to energy flow export sensor, on this lowest limit, the request of a boiler thermal switch will cause the igniting immediately of burner.
As can be seen, make a response by the decline of convection current leaving energy, the present invention makes a response to the current heat load on the heating system.The present invention makes it oneself adapt to the variation of load immediately, and therefore can think: the present invention can make a response as the load variations that is used for instant, to avoid reaching the self-reacting device of the low limit of a boiler energy value.
Microprocessor program will be described at following 4 pages.
Claims (22)
1. method of improving heating system efficient in the heating system, this heating system has:
A boiler;
A burner that is used for heating boiler;
The heat exchanger of a Keep away from boiler is used for heat is transferred to the space that needs heat;
A fluid thermal transmission medium is used for submitting to heat exchanger from the heat of boiler;
A flow export pipeline sends the hot transmission medium of fluid to above-mentioned heat exchanger; And
Energy value sensor in boiler is used for:
Respond to one low-yield, boiler requires more heat on this energy;
At the above-mentioned burner of above-mentioned low-yield igniting;
Respond to a ceiling capacity; And
On ceiling capacity, stop igniting.
Above-mentioned method comprises:
Induction is from an ignition signal of boiler energy value sensor; And
Stop boiler energy value sensor points ignition combustor; Meanwhile,
Induction is at an energy value of the flow export pipeline at boiler place;
Monitor flows leaving energy value;
Be recorded in the flow export energy value when ignition signal occurs for the first time; Then
Detect the variation of a predetermined flow export energy value, this variation is ignition signal energy decreases from the flow export energy value when occurring for the first time; And
Respond this variation by start-up burner.
2. according to a kind of method of claim 1, wherein, energy value is a temperature value, and the energy value sensor is a temperature sensor.
3. according to a kind of method of claim 1, wherein, energy value is a steam pressure value, and the energy value sensor is a pressure sensor.
4, according to a kind of method of claim 1, also include step:
When lower boiler energy value, reduce the predetermined less flow export energy value of flow export energy value to.
5. controller that is used for heating equipment, described heating equipment has:
A boiler;
A burner;
The heat exchanger of a Keep away from boiler is used for heat is transferred to the space that needs heat;
A fluid thermal transmission medium is used for heat is submitted to heat exchanger;
A flow export pipeline sends the hot transmission medium of fluid to above-mentioned heat exchanger; And
Energy value sensor in boiler is used for:
Respond to a low energy value, boiler requires more heat on this low energy value,
At the above-mentioned above-mentioned burner of low energy value igniting,
Respond to a maximum energy value, and
On maximum energy value, stop igniting.
It is characterized in that this controller has:
Be used to respond to device from an ignition signal of boiler energy value sensor;
Be used to stop the device of boiler energy value sensor points ignition combustor;
Be used to respond to device at the energy value of the flow export at boiler place;
Be used to be recorded in the device of the flow export energy value when ignition signal occurs for the first time;
The device that is used for monitor flows leaving energy value;
Be used to detect the device of the variation of a predetermined flow export energy value, this variation is an energy decreases; And
Be used for responding the device of this variation by start-up burner.
6. according to the controller of claim 5, wherein, energy value is a temperature value, and the energy value sensor is a temperature sensor.
7. according to the controller of claim 5, wherein, energy value is a steam pressure value, and the energy value sensor is a pressure sensor.
8. according to the controller of claim 5, wherein, be used to stop the device of boiler energy value sensor points hot pot stove to comprise:
Energy value sensor in boiler and the power supply between the burner are supplied with a breaker in the electric wire; And
The device that is used for convertible ground this breaker of bridge joint.
9. controller according to Claim 8, wherein, the device that is used to respond to from an ignition signal of boiler energy value sensor comprises:
One by boiler energy value sensor in response to a low-yield hot line of connecting, require more heat at this low-yield some boiler; And
Be used for by a switching device that voltage activated on the hot line.
10. according to the controller of claim 9, wherein, be the electronic circuit that a wide-range voltage is imported but be used for by a switching device that voltage activated on the hot line.
11. according to the controller of claim 10, wherein, the voltage of this wide region is imported between 24 volts and 240 volts.
12. according to the controller of claim 11, wherein, the hot line electronic circuit comprises an optoisolator.
13. controller according to claim 5, wherein, the device that is used to respond at the energy value of the flow export of boiler is an energy value sensor device, and being used to generate one can be by the employed signal of electronic circuit, and above-mentioned flow export energy value sensor is positioned at the flow export of boiler.
14. controller according to claim 13, wherein, the device that is used to be recorded in the flow export energy value when ignition signal occurs for the first time is an electronic circuit, and this device comes the responding to switch device by being recorded in the voltage in flow export energy value sensor device place;
Above-mentioned electronic circuit also plays the effect of monitor flows leaving energy value, and it realizes this supervision by supervision at the voltage of a variation at flow export energy value sensor place;
Above-mentioned electronic circuit also plays the effect that detects the flow export variations in temperature, it realizes this detection by response corresponding to the predetermined variation in the voltage of the variation at flow export energy value sensor place of flow export variations in temperature, activate convertible bridge-set by above-mentioned electronic circuit, thereby energy is offered burner and start-up burner.
15. according to the controller of claim 14, wherein:
Energy value is a temperature value, and
The device that is used to respond at the energy value of boiler flow export is a thermistor that is installed in boiler flow export place.
16. according to the controller of claim 14, wherein, electronic circuit comprises a microprocessor.
17. according to the controller of claim 5, wherein, when working under the situation that is being lower than maximum load, burner periodically connects and cuts out, this controller reduces the number in burner cycle in time limit preset time.
18. according to the controller of claim 16, wherein, microprocessor is controlled by a program, and program has its oneself pick up calibration routine.
19. according to the controller of claim 18, wherein, flow export energy value sensor is a negative energy value coefficient resistance, this thermistor has the nonlinear characteristic of an inherence, has the bigger voltage drop on lower temperature.
20. controller according to claim 5, wherein this controller has the consistent device that moves, be used to have when boiler energy value during near environment temperature, a lowest limit by induced flow leaving energy value sensor activates burner, and the thermal switch request of a boiler will cause control circuit start-up burner immediately on this lowest limit.
21. according to the controller of claim 5, wherein, this controller is used as makes a response to current heat load variation, to avoid reaching the self-reacting device of boiler low energy value.
22. according to the controller of claim 19, wherein, this controller has:
When boiler energy value during near environment temperature, by responding to the device that activates burner in lowest limit of flow export energy value sensor immediately, the thermal switch request of a boiler will cause control circuit start-up burner immediately on this liminal value; And
Wherein, this controller can be used as makes a response to the variation of current heat load, to avoid reaching the self-reacting device of boiler low energy value.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1998/005625 WO1999048713A1 (en) | 1998-03-20 | 1998-03-20 | Method and apparatus for regulating heater cycles to improve fuel efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1294556A CN1294556A (en) | 2001-05-09 |
| CN1104590C true CN1104590C (en) | 2003-04-02 |
Family
ID=22266654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98813982A Expired - Fee Related CN1104590C (en) | 1998-03-20 | 1998-03-20 | Method and appts. for regulating heater cycles to improve fuel efficiency |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1077821B1 (en) |
| CN (1) | CN1104590C (en) |
| AT (1) | ATE540267T1 (en) |
| AU (1) | AU742376B2 (en) |
| CA (1) | CA2324462C (en) |
| HK (1) | HK1037160A1 (en) |
| NZ (1) | NZ507617A (en) |
| WO (1) | WO1999048713A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1032598C2 (en) * | 2006-09-29 | 2009-02-25 | Kamstrup B V | Device, system and method for controlling a heating system. |
| NL1035645C2 (en) * | 2008-07-01 | 2010-01-05 | Agpo Bv | Burner controlling method for boiler in heating system, involves measuring pressure of transferred fluid, comparing measured pressure value with reference pressure value, and controlling burner of boiler based on results of comparison |
| DE102008047070A1 (en) * | 2008-09-11 | 2010-03-25 | Viessmann Werke Gmbh & Co Kg | Method of operating a burner-equipped boiler |
| GB2514554B (en) * | 2013-05-28 | 2016-06-01 | Dynamic Energy Products Ltd | Boiler control system and method |
| GB2579662A (en) * | 2018-12-11 | 2020-07-01 | Domestic Energy Products Ltd | Boiler control system and method |
| GB2589824B (en) * | 2019-09-27 | 2021-12-15 | Domestic Energy Products Ltd | Boiler Control System and Method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4850310A (en) * | 1986-06-30 | 1989-07-25 | Harry Wildgen | Boiler control having reduced number of boiler sequences for a given load |
| US5072879A (en) * | 1988-05-11 | 1991-12-17 | Noye Michael E | Heating system control |
| US5125573A (en) * | 1990-05-02 | 1992-06-30 | Etablissements Vape | Device for fixing a railroad rail on a tie |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2266245A (en) | 1940-10-12 | 1941-12-16 | Mcgraw Electric Co | Off-peak water heating system |
| US4108375A (en) | 1977-05-13 | 1978-08-22 | Energy Conservation Devices, Inc. | Control device and process for heating an installation |
| US4381075A (en) | 1981-12-17 | 1983-04-26 | Thermonic Corp. | Microprocessor based controller for heating system |
| US4844335A (en) * | 1982-03-10 | 1989-07-04 | Surgeonics Limited | Microprocessor controlled heating system |
| GB8318452D0 (en) | 1983-07-07 | 1983-08-10 | Esg Controls Ltd | Boiler cycling controller |
| US5125572A (en) * | 1991-04-26 | 1992-06-30 | General Electric Engineering, Inc. | Hot water heating control system |
| US5470019A (en) | 1992-07-16 | 1995-11-28 | Riverlake Investments Ltd. | Device for controlling heating boilers |
-
1998
- 1998-03-20 AU AU67684/98A patent/AU742376B2/en not_active Ceased
- 1998-03-20 EP EP98913036A patent/EP1077821B1/en not_active Expired - Lifetime
- 1998-03-20 CA CA002324462A patent/CA2324462C/en not_active Expired - Lifetime
- 1998-03-20 NZ NZ507617A patent/NZ507617A/en not_active IP Right Cessation
- 1998-03-20 WO PCT/US1998/005625 patent/WO1999048713A1/en active IP Right Grant
- 1998-03-20 CN CN98813982A patent/CN1104590C/en not_active Expired - Fee Related
- 1998-03-20 AT AT98913036T patent/ATE540267T1/en active
-
2001
- 2001-08-28 HK HK01106093.2A patent/HK1037160A1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4850310A (en) * | 1986-06-30 | 1989-07-25 | Harry Wildgen | Boiler control having reduced number of boiler sequences for a given load |
| US5072879A (en) * | 1988-05-11 | 1991-12-17 | Noye Michael E | Heating system control |
| US5125573A (en) * | 1990-05-02 | 1992-06-30 | Etablissements Vape | Device for fixing a railroad rail on a tie |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE540267T1 (en) | 2012-01-15 |
| CN1294556A (en) | 2001-05-09 |
| EP1077821B1 (en) | 2012-01-04 |
| EP1077821A4 (en) | 2009-06-24 |
| WO1999048713A1 (en) | 1999-09-30 |
| CA2324462C (en) | 2007-06-12 |
| AU6768498A (en) | 1999-10-18 |
| EP1077821A1 (en) | 2001-02-28 |
| CA2324462A1 (en) | 1999-09-30 |
| HK1037160A1 (en) | 2002-02-01 |
| AU742376B2 (en) | 2002-01-03 |
| NZ507617A (en) | 2003-03-28 |
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