CN108474587A - Heat hot water boiler and its control method - Google Patents
Heat hot water boiler and its control method Download PDFInfo
- Publication number
- CN108474587A CN108474587A CN201680076160.1A CN201680076160A CN108474587A CN 108474587 A CN108474587 A CN 108474587A CN 201680076160 A CN201680076160 A CN 201680076160A CN 108474587 A CN108474587 A CN 108474587A
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- water
- heat
- supply
- heat exchanger
- hot water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 238
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000008400 supply water Substances 0.000 claims abstract description 94
- 238000010438 heat treatment Methods 0.000 claims abstract description 58
- 206010037660 Pyrexia Diseases 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000004904 shortening Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 239000008236 heating water Substances 0.000 description 3
- 206010053615 Thermal burn Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 101150034459 Parpbp gene Proteins 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
-
- 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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
-
- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/121—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using electric energy supply
- F24H1/122—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using electric energy supply combined with storage tank
-
- 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
- F24H15/174—Supplying heated water with desired temperature or desired range of temperature
-
- 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
- F24H15/215—Temperature of the water before 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
- F24H15/212—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
- F24H15/238—Flow rate
-
- 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
- F24H15/305—Control of valves
- F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
-
- 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
- F24H9/00—Details
-
- 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
- F24H15/281—Input from user
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The present invention is intended to provide a kind of following heating hot water boiler and its control method：Hot water temperature's deviation can be reduced when hot water is used, and reduces opening/closing number and preventing relay life from shortening for heater.Heating hot water boiler for achieving the above object includes：First heat exchanger generates the supply water heated；Second heat exchanger generates hot water by the heat exchange between supply water and the direct-furnish water supplied from the first heat exchanger；Flow control valve, the circular flow for adjusting the supply water recycled by the second heat exchanger under hot-water mode；Control unit, under hot-water mode, calculate the heat of needs corresponding with the setting hot water temperature of user, and the supply heat for being set as supplying from the first heat exchanger is corresponding with the heat of the needs, and under hot-water mode, adjusts the aperture of the flow control valve and make heat of the circular flow corresponding to the needs.
Description
Technical field
The present invention relates to a kind of heating hot water boiler and its control methods, in particular to one kind for warm heat
The heating hot water boiler and its control method of hot water temperature's deviation can be reduced by being used in water boiler when hot water.
Background technology
In general, the operation for capableing of the boiler of the warm hot water of dual-purpose confession has heating mode and hot-water mode, wherein heating mode
It is to be supplied to the pattern at heating needs in the heating water that heat exchanger is heated；Hot-water mode is added in heat exchanger
The heating water of heat is supplied to the pattern of hot water supply heat exchanger.
Fig. 1 is the figure for the composition for showing existing common heating hot water boiler.
Heating hot water boiler include：First heat exchanger 10, for heating supply water；Expansion tank 20, storage supply
Ying Shui；Second heat exchanger 40, for being heated to direct-furnish water and to user's hot-water supply；Triple valve 30 is used for heating
It needs to locate what any one supply in (not shown) and second heat exchanger 40 was heated in the first heat exchanger 10
Supply water；Circulating pump 50 needs the water of place or second heat exchanger 40 to recycle for making by heating.
The supply water heated in the heating mode in the first heat exchanger 10 is via first supply pipe 81, expansion
Heating is provided to after sink 20, second supply pipe 82, triple valve 30 by third supply pipe 83 to need to locate.In the confession
The supply water after heat exchange is carried out at warm needs via the first return pipe 84, the second return pipe 88 and to first heat exchanger 10
Cycle.
Under hot-water mode, in the supply water that the first heat exchanger 10 is heated via first supply pipe 81, swollen
Second heat exchanger 40 is flowed by hot water side supply pipe 85 after swollen sink 20, second supply pipe 82, triple valve 30.Institute
Second heat exchanger 40 is stated, the direct-furnish water of the inflow of pipe 86 is flowed by direct-furnish water and by the hot water side supply pipe 85 inflow
Heat exchange is formed between supply water, and the direct-furnish water becomes hot water and is supplied to user by hot water outlet pipe 87.
The second heat exchanger 40 carry out return water that heat exchange and temperature decline via hot water side return pipe 89, the second return pipe 88 and
It is recycled to first heat exchanger 10.
Unaccounted drawing reference numeral 60 and 70 indicates check-valves and flow sensor respectively.
When hot water is used, the hot water temperature being discharged when the variation of direct-furnish water flow or the set temperature change of hot water is reduced
Deviation it is particularly important, however above-mentioned existing heating hot water boiler has the following problems.
First, for controlling slow-footed system by the heat of first heat exchanger 10, from first heat exchanger
The temperature changing speed of the supply water of 10 supplies also can be slack-off, accordingly, the hot water being discharged from second heat exchanger 40 by heating
Temperature changing speed also can be slack-off, thus in the presence of the problem of when hot water set temperature changes, the deviation of hot water temperature becomes larger.
Second, heat hot water boiler be electric boiler in the case of, can not first heat exchanger 10 pari passu
Control supply heat, therefore temperature deviation can aggravate.That is, electric boiler first heat exchanger 10 equipped with multiple heaters
11,12,13, and each heater 11,12,13 can only supply fixed heat.For example, it is assumed that by a heater 11
The heat of supply is 8,000kcal/h, then if opening (On) two heaters, can supply the heat of 16,000kcal/h,
And if by three heaters 11,12,13 fully open (On), the heat of 24,000kcal/h can be supplied.Above-mentioned confession
It answers heat to be confirmed as three fixed values, therefore is unable to supply 8, the heat between 000~16,000 and 16,000~24,
Heat between 000.Therefore, according to hot water temperature set by user, the heat more high or low than required heat can only be supplied.
Also, fixed heat can be only supplied in heater 11,12,13, therefore, is supplied by hot water outlet pipe 87 if be repeated
Hot water temperature reach hot water temperature set by user, then close (Off) heater 11,12,13, later if hot water temperature weight
Newly the temperature of setting is reduced to hereinafter, then opening the process of (On) heater 11,12,13.It is repeated if as discussed above
(On)/closing (Off) is opened, then the service life that there is the relay (relay) for supplying heater 11,12,13 power supply contracts
Short problem.
Third, when running heating, the temperature supplied to the supply water at heating needs usually maintains minimum 60 degree or more
High temperature.If being converted to hot-water mode in operation heats, in the moment that triple valve 30 is converted, the supply water of high temperature is immediately
Flow to second heat exchanger 40.Therefore, before being not yet cooled to the supply water temperature suitable for hot water temperature set by user, due to
The supply water of high temperature flows into second heat exchanger 40, therefore the temperature for the hot water being discharged also can sharp rise, therefore existing can
The problem of scald can be caused to hot water user.
As with the above-mentioned relevant prior art of heating hot water boiler, disclose KR published patent 10-2008-
No. 0091637 " utilizing the heating system of the heat exchanger of moment formula electric boiler ".
Invention content
Technical problem
The present invention proposes that its purpose is to provide a kind of following heating hot water is simultaneous in order to solve above-mentioned all problems
With boiler and its control method：Hot water temperature's deviation can be reduced when hot water is used, and can reduce the opening of heater
(On)/and (Off) number is closed, so as to prevent relay life from shortening.
Technical solution
For achieving the above object the present invention heating hot water boiler include：First heat exchanger 10 generates quilt
The supply water of heating；Second heat exchanger 40, by between the supply water and direct-furnish water that the first heat exchanger 10 is supplied
Heat exchange and generate hot water；Flow control valve 110 passes through the second heat exchanger 40 for being adjusted under hot-water mode
And the circular flow of the supply water recycled；Control unit calculates need corresponding with the setting hot water temperature of user under hot-water mode
The heat wanted, and the supply heat for being set as supplying from the first heat exchanger 10 is corresponding with the heat of the needs, and
Under hot-water mode, adjusts the aperture of the flow control valve 110 and make heat of the circular flow corresponding to the needs
Amount.
The first heat exchanger 10 may include：Multiple heaters 11,12,13, by the supply of power supply with fixation
Heat fever.
The control unit can set the heating in a manner of so that the heat needed described in the supply heat ratio is higher
The opening quantity of device 11,12,13, and in order to reduce the circular flow with the heat corresponding to the needs, reduce the stream
The aperture of adjustable valve door 110.
Heating hot water boiler can have the temperature for measuring the supply water for flowing into the second heat exchanger 40
Supply water temperature sensor 120, and have the return water temperature of the temperature for measuring the return water by the second heat exchanger 40
Sensor 130 is spent, and the control unit is measured according to from the supply water temperature sensor 120 and return water temperature sensor 130
Temperature difference and the needs heat Calculation described in circular flow.
The flow control valve 110 can be provided to the hot water side for the outlet side for being connected to the second heat exchanger 40
On return pipe 89.
In the control method of heating hot water boiler according to the present invention, the heating hot water boiler includes：
First heat exchanger 10 generates the supply water heated；Second heat exchanger 40, by being supplied from the first heat exchanger 10
Heating water and direct-furnish water between heat exchange and generate hot water；Control unit, under hot-water mode, according to the setting heat with user
The heat of the corresponding needs of coolant-temperature gage and control the supply heat supplied from the first heat exchanger 10, the heating hot water is simultaneous
Included the following steps with the control method of boiler：A) flow for sensing the direct-furnish water, the hot water to sense user use；b)
In the control unit, the heat of needs is calculated corresponding to setting hot water temperature set by user, and corresponds to calculated institute
It states the heat of needs and sets the supply heat supplied from the first heat exchanger 10；C) to the supply water supply setting
The supply heat and heated, and make the supply water of heating by the second heat exchanger 40 and to first heat hand over
Parallel operation 10 recycles；D) it in the state of the fixation supply heat, is adjusted by described second using flow control valve 110
The circular flow of the supply water of heat exchanger 40.
The first heat exchanger 10 may include the multiple heaters 11,12,13 supplied and generated heat according to power supply, in institute
It states in b) step, the control unit sets the heater in a manner of keeping the heat needed described in the supply heat ratio higher
11,12,13 quantity being opened；In the d) step, so that circular flow side corresponding with the heat of the needs
Formula reduces the aperture of the flow control valve 110.
After the d) step, flowing into the temperature of the supply water of the second heat exchanger 40 can be passed by supply water temperature
Sensor 120 measures, and is more than to close institute in the case of the temperature that the control unit is set in the temperature of the supply water of measurement
State heater 11,12,13.
In the method, the temperature for flowing into the supply water of the second heat exchanger 40 can be by supply water temperature sensor
120 measure, in the d) step, if the temperature of the supply water measured generates the range for changing and be more than setting,
Adjust the aperture of the flow control valve 110.
The method can measure the water supply of the supply water flowed into the second heat exchanger 40 in the d) step
The return water temperature of temperature and return water by the second heat exchanger 40, and the control unit according to the supply water temperature with
Difference between return water temperature and circular flow described in the heat Calculation of the needs, and adjust the flow control valve 110
Aperture to correspond to the calculated circular flow.
Advantageous effect
According to the present invention, it is equipped with the flow control valve for the flow that can adjust the supply water recycled by second heat exchanger
Door so as to the heat that feedback control in time needs to supply from second heat exchanger to direct-furnish water, therefore can minimize
The generation of the deviation of hot water temperature.
Also, for electric boiler, flow control valve can be adjusted merely by the state of not closing (Off) heater
The aperture of door supplies user's temperature of required hot water, therefore can prevent the relay for supplying power supply to heater
The lost of life, so as to reduce maintenance cost.
Also, the confession that the case where being such as converted to hot-water mode during operation heats is supplied to second heat exchanger
In the case that the temperature of Ying Shui sharp changes, the aperture of flow control valve can be also adjusted merely by promptly to reduce confession
Heat is answered, so as to prevent hot water user from being scalded.
Also, user can only make the required traffic flow of the hot water temperature of setting, so as to reduce by heat exchange
The energy of device supply.
Description of the drawings
Fig. 1 is the figure for the composition for showing existing common heating hot water boiler.
Fig. 2 is the figure for the composition for showing heating hot water boiler according to the present invention.
Fig. 3 is the composition for being connected to second heat exchanger shown in heating hot water boiler according to the present invention
Figure.
Fig. 4 is the flow chart for the control method for showing heating hot water boiler according to the present invention.
Symbol description
10：First heat exchanger 11,12,13：Heater
30：Triple valve 40：Second heat exchanger
50：Circulating pump 60：Check-valves
70：Flow sensor 81：First supply pipe
82：Second supply pipe 83：Third supply pipe
84：First return pipe 85：Hot water side supply pipe
86：Direct-furnish water flows into pipe 87：Hot water outlet pipe
88：Second return pipe 89：Hot water side return pipe
110：Flow control valve 120：Supply water temperature sensor
130：Return water temperature sensor 140：Direct-furnish water temperature sensor
150：Hot water temperature sensor
Specific implementation mode
Hereinafter, being illustrated to the composition and effect of the preferred embodiment of the present invention with reference to attached drawing.
The composition of heating hot water boiler according to the present invention is illustrated with reference to Fig. 2.
Heating hot water boiler according to the present invention includes：First heat exchanger 10 generates the supply water of high temperature；Second
Heat exchanger 40 generates heat by the heat exchange between supply water and the direct-furnish water supplied by the first heat exchanger 10
Water；Flow control valve 110, the stream for adjusting the supply water under hot-water mode supplied to the second heat exchanger 40
Amount；Control unit, the aperture for adjusting the flow control valve 110.
In the first heat exchanger 10 equipped with the flow path for making supply water flowing and for heating in the flow path
Supply water heating unit.The heating unit can be burner, but in the present embodiment, it is configured to apply in grill pan
Stove and by the supply of power supply come the heater 11,12,13 that generates heat.Each heater 11,12,13 is configured to supply fixed heat
Amount.
Expansion tank 20 is flowed by first supply pipe 81 in the supply water that the first heat exchanger 10 is heated.
In the inside of the expansion tank 20, supply water is filled with scheduled water level, and in the upper of the supply water being filled
Portion forms free space, in the case of causing the volume for supplying water to become larger to be increased in temperature, can absorb the expansion
Volume.
The supply water being discharged from the expansion tank 20 is flowed by second supply pipe 82 to triple valve 30.The threeway
Valve 30 realizes the conversion of path direction as follows：In the heating mode, make the confession being supplied by second supply pipe 82
Ying Shui is supplied to heating by third supply pipe 83 and needs to locate (not shown), and under hot-water mode, the supply water is made to pass through
Hot water side supply pipe 85 is supplied to second heat exchanger 40.
The temperature that the supply water of heat exchange is carried out at the heating needs declines, to pass through the first return pipe 84, the
Two return pipes 88 and flow to first heat exchanger 10.Water by flowing in the first return pipe 84 and the second return pipe 88 is known as
" return water ".
On second return pipe 88, equipped with the circulating pump for recycling water under heating mode and hot-water mode
50。
What the control unit controlled the heater 11,12,13 opens/closes (On/Off), is set with supply and user
The corresponding heat of hot water temperature, and in order to only make the required traffic flow of warm water of supply temperature set by user to
Two heat exchangers 40 and the aperture for adjusting flow control valve 110.
The composition for being connected to second heat exchanger 40 is illustrated with reference to Fig. 3.
It is connected in the second heat exchanger 40：Direct-furnish water flows into pipe 86, and direct-furnish water is made to flow into；Hot water outlet pipe 87,
The direct-furnish water of the inflow is set to be discharged after obtaining heating；Hot water side supply pipe 85 makes the supply flow by triple valve 30
It moves and is flowed into second heat exchanger 40；Hot water side return pipe 89, make second heat exchanger 40 carry out heat exchange and at a temperature of
Supply water (hereinafter, being referred to as " return water ") flowing of drop.
It is flowed on pipe 86 equipped with flow sensor 70 and direct-furnish water temperature sensor 140 in the direct-furnish water.If user
Using hot water, then direct-furnish water flows into pipe 86 to direct-furnish water and flows into, and senses the flowing of direct-furnish water in the flow sensor 70,
Whether hot water so as to sense user uses.Also, based on the temperature of the direct-furnish water measured by direct-furnish water temperature sensor 140
Degree, control unit calculate the required heat of hot water of the temperature for supplying user's needs.
Equipped with hot water temperature sensor 150 on the hot water outlet pipe 87.Control unit compares in the hot water temperature
The hot water temperature and hot water temperature set by user that sensor 150 measures, and flow control valve 110 is adjusted according to its difference
Aperture.
On the hot water side supply pipe 85, equipped with the temperature for measuring the supply water flowed into second heat exchanger 40
The supply water temperature sensor 120 of degree (hereinafter, be referred to as " supply water temperature "), and on the hot water side return pipe 89 equipped with
Measure the return water temperature sensor 130 of the temperature (hereinafter, being referred to as " return water temperature ") of the return water by second heat exchanger 40.
The control unit is from the temperature difference measured by the supply water temperature sensor 120 and return water temperature sensor 130
With the heat of the needs, the circular flow of the supply water recycled by the flow control valve 110 is calculated.
The flow control valve 110 is provided to the piping as the outlet side for being connected to the second heat exchanger 40
On hot water side return pipe 89.The flow control valve 110 may be also constructed to be provided on hot water side supply pipe 85, however by
In the supply water supplied from first heat exchanger 10 be high temperature, therefore as the entrance side for being connected to second heat exchanger 40
In the case that the hot water side supply pipe 85 of piping is equipped with flow control valve 110, it may occur because of the supply water of high temperature
Temperature resistance problem.Therefore, it by the way that the flow control valve 110 is provided to hot water side return pipe 89, can prevent because heat-resisting
Property and the problem of cause durability to reduce.
Hereinafter, being illustrated to the control method of heating hot water boiler according to the present invention with reference to Fig. 4.
User sets the temperature (hereinafter, being referred to as " setting hot water temperature ") of required hot water by operation portion, and
Begin to use hot water.
When user begins to use hot water, direct-furnish water is flowed into direct-furnish water and flows into pipe 86, and boiler operatiopn hot-water mode,
To sense the flowing of direct-furnish water in flow sensor 140.
In step s 201, the flow value of the direct-furnish water sensed by the flow sensor 140 is input to control unit, and
Control unit is judged as user using hot water by the flow value of the input.
If control unit is judged as user using hot water, in step S202, control unit calculates set by user set
Determine the heat of the needs corresponding to hot water temperature.
Here, the mathematical expression for calculating the heat needed is as follows.
The heat (kcal/h) needed=(setting hot water temperature-direct-furnish coolant-temperature gage) × direct-furnish water flow × 60
In mathematical expression 1, direct-furnish coolant-temperature gage is the temperature of the direct-furnish water measured by direct-furnish water temperature sensor 140, and
Direct-furnish water flow is the flow of the direct-furnish water measured by flow sensor 140, and 60 indicate 60 for calculating heat hourly
Minute.For example, setting hot water temperature as 40 DEG C, direct-furnish coolant-temperature gage is 10 DEG C, in the case that direct-furnish water flow is 10Lpm, is needed
The heat wanted is 18,000kcal/h.
After calculating the heat of needs in step S203, control unit setting, which needs to be supplied to from first heat exchanger 10, to supply
The heat of Ying Shui opens (On) heater 11,12,13 according to the supply heat of setting later.For example, it is assumed that a heater
11 heats being capable of supply that are 8,000kcal/h, if opening (On) two heaters 11,12, are not enough to required for reaching
Heat, therefore can cause for hot water temperature user it is discontented.Therefore, in order to supply the heat of the needs, need by
Three heaters 11,12,13 fully open (On), therefore, than heat i.e. 18 of needs, the 24,000kcal/ of 000kcal/h high
H is set as supplying heat.
In order to supplied to supply water, open heater 11,12,13 and circulating pump 50 opens (On) the supply heat.
In the case, the opening and closing direction of triple valve 30 is in a manner of supplying water and be flowed from second supply pipe 82 to hot water side supply pipe 85
Setting, and flow control valve 110 is the state opened to the maximum extent.
Hot-water mode is run in this case, and is judged in step S204 from hot water temperature sensor in control unit
Whether the temperature of 150 hot water measured has reached hot water temperature i.e. 40 DEG C of setting.
According to judging result, if hot water temperature has reached setting hot water temperature, carry out step S205, otherwise continue into
Process until row step S203.
If hot water temperature reaches setting hot water temperature, by between the supply water and direct-furnish water of second heat exchanger 40
Thermal equilibrium state can be become.Heat if necessary is 18,000kcal/h, and assumes flow control valve 110 being opened to
Circular flow when maximum is 15.0Lpm, then according to mathematical expression 1, the temperature of supply water temperature and return water temperature under thermal equilibrium state
Degree difference is 20 DEG C.For example, the supply water temperature measured by supply water temperature sensor 120 can be 60 DEG C, by return water temperature sensor
130 return water temperatures measured can be 40 DEG C.
In step S205, following feedback (Feedback) control is executed：The aperture of flow control valve 110 is adjusted,
Until the hot water temperature of water outlet reaches setting hot water temperature.
Under thermal equilibrium state, the temperature of hot water becomes setting hot water temperature i.e. 40 DEG C, however from heater 11,12,13
Supply heat more higher than the heat of needs, so if continue to the aperture of flow control valve 110, then the hot water being discharged
Temperature become than the high temperature of setting hot water temperature, to user be caused to be discontented with hot water temperature.
In the prior art, control is to close (Off) if the temperature of hot water reaches setting hot water temperature i.e. 40 DEG C and add
Hot device 11,12,13, however there are problems that durability reduction due to frequently opening (On)/closing (Off).
Therefore, in the present invention, it is configured to：Keep heater 11,12,13 opening (On) state and regular supply is hot
The aperture that reduces flow control valve 110 in the state of amount is recycled to be incrementally decreased by second heat exchanger 40 by
Supply the circular flow of water.The circular flow of supply water is adjusted if as discussed above, even if not opening (On)/closing then
(Off) heater 11,12,13 can also control heat ratio.
In step S206, in the temperature for the supply water that control unit judges whether to be measured by supply water temperature sensor 120
Degree variation.
According to judging result, changes if there is supply water temperature, then carry out step S207, otherwise continue step
The aperture regulation and supply water temperature measurement process of the flow control valve 110 of S205, S206.
In step S207, if being less than primary heater temperature by the supply water temperature that supply water temperature sensor 120 measures,
Step S208 is then carried out, step S209 is otherwise carried out.
In step S205, if reducing the aperture of flow control valve 110 and reducing circular flow, it is flowed into second
The supply water temperature of heat exchanger 40 and it can be become larger by the deviation of the return water temperature after second heat exchanger 40, therefore for water temperature
Degree can rise.In general, if supply water temperature is more than 80 degree (primary heater temperature), scald caused by high temperature can occur, and
And the heat resistance of component causes problems, it is therefore preferred that closing (Off) heater 11,12,13.
In step S208, before supply water temperature reaches primary heater temperature, in order to flow control valve 110
Aperture is fed back (Feedback) control, calculated through the flow of flow control valve 110 by following mathematical expression 2 and
Circular flow.
The heat of target circulation flow=needs/(supply water temperature-return water temperature)/60
In the above example, it is 18,000kcal/h in the heat of needs, supply water temperature is 80 DEG C, and return water temperature
In the case of for 40 DEG C, if these are updated to mathematical expression 2 and is calculated, circular flow 7.5Lpm.
If calculating circular flow by above-mentioned process, and step S205 and calculated circular flow are carried out
Accordingly adjust the aperture amount of flow control valve 110.
In step S209, if supply water temperature is more than primary heater temperature, lead to portion because of high temperature in order to prevent
The durability of part reduces and closes (Off) heater 11,12,13.As an example, the primary heater temperature can be set as
80℃。
In step S210, if supply water temperature be reduced to secondary heater temperature hereinafter, if carry out step S211, otherwise
Keep closing (Off) state of heater.It is configured to, if supply water temperature reaches 75 DEG C, beats in the above example
Open (On) heater 11,12,13.
If opening (On) described heater 11,12,13, supply water temperature can rise, and according to the change of supply water temperature
Change, the aperture regulation process of the flow control valve 110 based on feedback (Feedback) control is executed in step S205.
By process as described above, (Off) heater 11,12,13 can not be closed and only pass through flow control valve
The temperature that 110 aperture regulation carrys out the hot water needed to user carries out heat ratio control.
According to above-mentioned boiler and control method, the aperture that can be adjusted merely by flow control valve 110 is come in time
In response to supplying the temperature change of water, so as to reduce the deviation of hot water temperature.Also, for electric boiler, Ke Yi
It does not close in the state of (Off) heater 11,12,13 and is adjusted merely by the aperture of flow control valve 110 and supplies user institute
The temperature of the hot water needed, therefore can prevent from supplying heater 11,12,13 the service life contracting of the required relay of power supply
It is short, so as to reduce maintenance cost.Also, as be converted to situation etc. of hot-water mode to the running the during of heating
In the case that the temperature for the supply water that two heat exchangers 40 are supplied sharp changes, it can also be adjusted merely by flow control valve
110 aperture and promptly reduce supply heat, therefore can prevent hot water user from being scalded.Also, since user only makes
The required traffic flow of hot water temperature of setting, so as to reduce the energy supplied from first heat exchanger 10.
The invention is not restricted to the embodiments described, and the people with basic knowledge can in the technical field belonging to the present invention
Understand, do not depart from the present invention technology purport in the range of, can carry out various modification, deformation and implement.
Claims (10)
1. a kind of heating hot water boiler, which is characterized in that including：
First heat exchanger (10) generates the supply water heated；
Second heat exchanger (40) is handed over by the heat between the supply water supplied from the first heat exchanger (10) and direct-furnish water
It changes and generates hot water；
Flow control valve (110), for adjusting the confession recycled by the second heat exchanger (40) under hot-water mode
The circular flow of Ying Shui；
Control unit calculates the heat of needs corresponding with the setting hot water temperature of user under hot-water mode, and is set as from institute
The supply heat for stating first heat exchanger (10) supply is corresponding with the heat of the needs, and under hot-water mode, adjusts institute
It states the aperture of flow control valve (110) and makes heat of the circular flow corresponding to the needs.
2. heating hot water boiler as described in claim 1, which is characterized in that
The first heat exchanger (10) includes：Multiple heaters (11,12,13), by the supply of power supply with fixed heat
Amount fever.
3. heating hot water boiler as claimed in claim 2, which is characterized in that
The control unit set in a manner of keeping the heat that needs described in the supply heat ratio higher the heater (11,12,
13) opening quantity, and in order to reduce the circular flow with the heat corresponding to the needs, reduce the flow control valve
The aperture of door (110).
4. heating hot water boiler as claimed in claim 2, which is characterized in that
Have the supply water temperature sensor (120) of the temperature for measuring the supply water for flowing into the second heat exchanger (40),
And have the return water temperature sensor (130) of the temperature for measuring the return water by the second heat exchanger (40),
And the control unit is according to the temperature measured from the supply water temperature sensor (120) and return water temperature sensor (130)
Spend circular flow described in difference and the heat Calculation of the needs.
5. heating hot water boiler as claimed in claim 2, which is characterized in that
The flow control valve (110) is provided to the hot water side return water for the outlet side for being connected to the second heat exchanger (40)
It manages on (89).
6. a kind of control method of heating hot water boiler, the heating hot water boiler include：First heat exchanger
(10), the supply water heated is generated；Second heat exchanger (40) passes through the heating supplied from the first heat exchanger (10)
Heat exchange between water and direct-furnish water and generate hot water；Control unit, under hot-water mode, according to the setting hot water temperature with user
The heat of corresponding needs and control the supply heat supplied from the first heat exchanger (10), the feature of the control method
It is, includes the following steps：
A) flow for sensing the direct-furnish water, the hot water to sense user use；
B) in the control unit, the heat of needs is calculated corresponding to setting hot water temperature set by user, and corresponding to calculating
The heat of the needs gone out and set the supply heat supplied from the first heat exchanger (10)；
C) it is heated to the supply heat of the supply water supply setting, and the supply water of heating is made to pass through institute
It states second heat exchanger (40) and is recycled to first heat exchanger (10)；
D) it in the state of the fixation supply heat, is handed over by second heat using flow control valve (110) to adjust
The circular flow of the supply water of parallel operation (40).
7. the control method of heating hot water boiler as claimed in claim 6, which is characterized in that
The first heat exchanger (10) includes the multiple heaters (11,12,13) supplied and generated heat according to power supply,
In the b) step, the control unit sets institute in a manner of keeping the heat needed described in the supply heat ratio higher
State the quantity that heater (11,12,13) is opened；
In the d) step, reduce the flow-rate adjustment in a manner of keeping the circular flow corresponding with the heat of the needs
The aperture of valve (110).
8. the control method of heating hot water boiler as claimed in claim 7, which is characterized in that
After the d) step, the temperature of supply water of the second heat exchanger (40) is flowed by supply water temperature sensor
(120) it measures, is more than in the case of the temperature that the control unit is set, described in closing in the temperature of the supply water of measurement
Heater (11,12,13).
9. the control method of heating hot water boiler as claimed in claim 6, which is characterized in that
The temperature for flowing into the supply water of the second heat exchanger (40) is measured by supply water temperature sensor (120),
In the d) step, if the temperature of the supply water measured generates variation more than the range of setting, adjust
The aperture of the flow control valve (110).
10. the control method of heating hot water boiler as claimed in claim 6, which is characterized in that
In the d) step, the supply water temperature of the supply water flowed into the second heat exchanger (40) is measured and by described
The return water temperature of the return water of second heat exchanger (40),
It is followed described in heat Calculation of the control unit according to difference and the needs between the supply water temperature and return water temperature
Circulation, and the aperture of the flow control valve (110) is adjusted to correspond to the calculated circular flow.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2015-0184633 | 2015-12-23 | ||
| KR1020150184633A KR101831804B1 (en) | 2015-12-23 | 2015-12-23 | Boiler for heating and hot-water supply and the control method thereof |
| PCT/KR2016/014442 WO2017111364A1 (en) | 2015-12-23 | 2016-12-09 | Combined heating and hot water boiler, and control method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108474587A true CN108474587A (en) | 2018-08-31 |
| CN108474587B CN108474587B (en) | 2021-01-29 |
Family
ID=59090749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680076160.1A Active CN108474587B (en) | 2015-12-23 | 2016-12-09 | Boiler for heating and water heating and control method thereof |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR101831804B1 (en) |
| CN (1) | CN108474587B (en) |
| RU (1) | RU2723274C2 (en) |
| WO (1) | WO2017111364A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178935A (en) * | 2019-07-01 | 2021-01-05 | 青岛经济技术开发区海尔热水器有限公司 | Control method of energy storage water heater |
| CN112902440A (en) * | 2021-01-26 | 2021-06-04 | 宁波方太厨具有限公司 | Heating and bathing dual-purpose furnace and bathing water outlet control method and system thereof |
| CN114688600A (en) * | 2020-12-29 | 2022-07-01 | 庆东纳碧安株式会社 | Boiler system and method of operation |
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| GB2568947B (en) * | 2017-12-01 | 2020-04-22 | Idzv Ltd | A combi-boiler device |
| WO2019216635A1 (en) * | 2018-05-08 | 2019-11-14 | 주식회사 경동나비엔 | Combined heating and hot-water boiler and control method therefor |
| KR102449159B1 (en) | 2018-05-08 | 2022-09-30 | 주식회사 경동나비엔 | Boiler for heating and hot-water supply and control method thereof |
| KR102207327B1 (en) * | 2018-05-11 | 2021-01-25 | 주식회사 경동나비엔 | Method and system for determining hot water use by using temperature gap |
| KR102214024B1 (en) * | 2019-08-20 | 2021-02-09 | 넥셀시스템(주) | Heat source supply system using fuel cell |
| CN114216149B (en) * | 2021-12-08 | 2022-10-25 | 北京科技大学 | Heating device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108474587B (en) | 2021-01-29 |
| KR101831804B1 (en) | 2018-02-23 |
| KR20170075235A (en) | 2017-07-03 |
| WO2017111364A1 (en) | 2017-06-29 |
| RU2018126766A3 (en) | 2020-01-23 |
| RU2723274C2 (en) | 2020-06-09 |
| RU2018126766A (en) | 2020-01-23 |
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