CN112484142A - Boiler system of external temperature sensing mode - Google Patents
Boiler system of external temperature sensing mode Download PDFInfo
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- CN112484142A CN112484142A CN202010936829.8A CN202010936829A CN112484142A CN 112484142 A CN112484142 A CN 112484142A CN 202010936829 A CN202010936829 A CN 202010936829A CN 112484142 A CN112484142 A CN 112484142A
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- heating water
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- temperature
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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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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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
- F24D15/00—Other domestic- or space-heating systems
- F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
-
- 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
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
- F24H1/203—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with electrodes
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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
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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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
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
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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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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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
- F24H2250/00—Electrical heat generating means
- F24H2250/10—Electrodes
Abstract
The boiler system of the external temperature sensing type of the present invention is a boiler system which appropriately heats and supplies heating water by operating a heat pump boiler and an electrode boiler according to a sensed external temperature, wherein if the sensed external temperature is higher than a set temperature or the temperature of the supplied heating water is higher than a target temperature, only the heat pump boiler is operated to heat and supply the heating water, and if the sensed external temperature is lower than the set temperature or the temperature of the supplied heating water is lower than the target temperature, not only the heat pump boiler but also the electrode boiler is operated to heat and supply the heating water.
Description
Technical Field
The present invention relates to an external temperature sensing type boiler system, and more particularly, to a boiler system in which a heat pump boiler and an electrode boiler are controlled according to sensed external temperatures, respectively, to appropriately heat and supply heating water.
That is, according to the present invention, if the sensed external temperature is higher than the set temperature or the temperature of the supplied heating water is higher than the target temperature, only the heat pump boiler is operated to heat the heating water and supply the heating water, and if the sensed external temperature is lower than the set temperature or the temperature of the supplied heating water is lower than the target temperature, not only the heat pump boiler but also the electrode boiler is operated to heat the heating water and supply the heating water.
In addition, in order to improve the heating efficiency of the electrolyzed water, the invention uses the electrode boiler provided with the electrode bar, and the electrode bar is suitable for a surface area expanding device.
Background
Modern society is increasingly developed, our lives are also becoming more convenient and rich, and many life technologies that focus on improving the quality of life are in a trend of development and development compared to the past.
In addition, in modern society, environmental problems caused by various public hazards are always encountered, and development of environmental technologies for minimizing the occurrence of public hazards is actively conducted.
Therefore, although boilers using fossil fuels such as oil, coal, and natural gas have been used in many cases in the prior art, recently, electrode boilers that do not generate harmful gas during combustion have been widely used, and it is true that electrode boilers can economically use electric energy by midnight electricity or solar power generation, and they are also vigorously advocated and promoted in terms of environmental protection.
The electrode boiler is divided into an indirect heating mode and a direct heating mode according to the heating mode, the indirect heating mode is used as a mode of inserting an electric heating rod into a water tank and then heating circulating water of the boiler by means of resistance heat, and the electrode boiler is low in price, simple in structure and more in use all the time.
In contrast, the direct heating method is an electrode boiler developed by GALAN corporation of russia, which uses a method of inserting an electrode rod into a water tank storing electrolyzed water and heating the electrolyzed water used as circulating water of the boiler by using an ionization principle of the electrolyzed water, and has various advantages compared to the electric heating rod method of the direct heating method, and is a recently popular electric boiler method.
However, the related art electrode boiler has a disadvantage in that the electrode rods or the boiler water tank itself needs to be replaced due to the surface oxidation of the electrode rods caused by the electrolytic water to generate the sludge, and the damage of the electrode rods caused by the surface oxidation and the contamination of the boiler water tank caused by the sludge as time passes, and it is difficult to accurately and rapidly control the supply power supplied for the heating of the electrolytic water and the heating proceeding speed of the electrolytic water, thereby having a disadvantage in that the overheating phenomenon of the electrode rods and the waste of the power caused thereby are generated.
In addition, the heat pump boiler is a boiler for absorbing external air heat at an evaporation part by using a heat pump, and supplying warm water to a high-temperature and high-pressure refrigerant after heat exchange between a condensation part and water at a compressor to warm the refrigerant, and has the advantages of no environmental pollution, energy saving and easy combination with other refrigerating and heating equipment.
The heat pump includes a step heat pump for compressing a refrigerant by one compressor using one refrigerant, and a binary cycle heat pump for recompressing a refrigerant by two compressors using two refrigerants.
The stepping heat pump can generate 3-4 times (COP 3-4) of electric energy at the external temperature of above-zero 7 ℃.
However, the heat pump boiler has a disadvantage in that the heating efficiency is lowered in the weather where the external temperature is low in winter.
To compensate for this disadvantage, a binary cycle heat pump has been developed that uses two refrigerants and two compressors to recompress the refrigerants.
However, the binary circulation type heat pump boiler is a system that requires two compressors to be operated simultaneously regardless of the external temperature to start up, and thus has a disadvantage in that it consumes about 2.5 times as much electric power as the step type heat pump.
Accordingly, the present invention has been made in an effort to develop a boiler system which selectively controls the operation of a heat pump boiler and an electrode boiler according to an external temperature for the purpose of maximum energy efficiency and saving, while taking advantage of the advantages of a heat pump, by using the electrode boiler and the step type heat pump boiler, and improving the disadvantages thereof.
The following is a prior art related to the present invention.
Prior art documents
Patent document
(patent document 0001)1 korean laid-open patent publication No. 10-2011-
(patent document 0002)2. korean registered patent publication No. 10-1321761 discloses an electric boiler using a heat pipe heat exchanger
(patent document 0003)3 korean laid-open utility model publication No. 20-2014 + 0004245 electrode bar boiler
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a boiler system which appropriately heats and supplies heating water by controlling a heat pump boiler and an electrode boiler according to sensed external temperatures.
In addition, the present invention has an object of operating only the heat pump boiler to heat and supply the heating water if the sensed external temperature is higher than the set temperature or the temperature of the supplied heating water is higher than the target temperature, and operating not only the heat pump boiler but also the electrode boiler to heat and supply the heating water if the sensed external temperature is lower than the set temperature or the temperature of the supplied heating water is lower than the target temperature.
In addition, the present invention is directed to an electrode boiler provided with an electrode rod adapted to a surface area expanding device in order to improve the heating efficiency of electrolyzed water.
In order to achieve the above object, an external temperature sensing type boiler system according to the present invention includes:
a heat pump boiler 100 for generating heating water by heating water supplied from the outside by a heat pump, and discharging the generated heating water through a heating water supply pipe 200;
a heating water supply pipe 200 for supplying heating water discharged from the heat pump boiler 100 to the electrode boiler unit 400 or a place where the heating water is used;
a controller 300 sensing an outside temperature and a temperature of heating water discharged from the heat pump boiler 100, and providing a boiler control signal for operating the electrode boiler 400 to the electrode boiler 400 according to the sensed outside temperature and the temperature of heating water discharged from the heat pump boiler 100;
an electrode boiler unit 400 for obtaining the heating water flowing in from the heating water supply pipe 200 if the boiler control signal is received from the control unit 300, heating the flowing heating water to a set temperature, and discharging the heated water to the heating water supply pipe 200;
and a check valve 500 formed on the heating water supply pipe 200 side and automatically adjusting the opening degree according to the inflow heating water flow rate.
The boiler system of the external temperature sensing mode is a boiler system which respectively controls the heat pump boiler and the electrode boiler according to the sensed external temperature so as to properly heat and supply heating water, thereby effectively saving energy and improving heating efficiency at the same time, thereby constructing an environment-friendly heating system.
In addition, the present invention operates only the heat pump boiler to heat and supply the heating water if the sensed external temperature is greater than the set temperature or the temperature of the supplied heating water is greater than the target temperature, operates not only the heat pump boiler but also the electrode boiler if the sensed external temperature is less than the set temperature or the temperature of the supplied heating water is less than the target temperature, and thus, not only the heat pump boiler but also the electrode boiler are operated, and the reduced heat generation amount of the heat pump boiler supplements the heat generation of the electrode boiler 400 to heat and supply the heating water, thereby improving the disadvantages of the step heat pump boiler in which the heat generation amount is reduced in the low external temperature weather and the two compressors are simultaneously operated to consume about 2.5 times of the power when the external temperature is high, and simultaneously, the electrode bar overheating phenomenon of the electrode boiler and the waste of the power caused thereby can be prevented by the regular operation of the heat pump boiler, and, The phenomenon that heating water is heated to a temperature higher than the target temperature for supply according to the external temperature in different weather, thereby obtaining great energy saving effect and prolonging the service life of the machine.
In addition, in order to improve the heating efficiency of the low-concentration electrolyzed water, the electrode bar application surface area expanding device of the electrode boiler applied in the invention expands the surface area of the electrode bar contacted with the electrolyzed water to the maximum extent, therefore, compared with the electrode boiler adopting a heating bar mode, the heating efficiency is increased, the heating effect of the electrode boiler is increased, the oxidation of the electrode bar and the generation of dirt slag are minimized, and the heating efficiency of the electrolyzed water is improved, therefore, the service life of the electrode bar is prolonged, and the maintenance cost caused by the replacement of the electrode bar is saved.
Drawings
FIG. 1 is a system diagram of an external temperature sensing type boiler system according to the present invention
FIG. 2 is a block diagram showing the structure of an external temperature sensing type boiler system according to the present invention
FIG. 3 is a control state diagram of an external temperature sensing type boiler system according to the present invention 1
FIG. 4 is a control state diagram of an external temperature sensing type boiler system according to the present invention 2
FIG. 5 is a perspective view of an electrode bar of an external temperature sensing type boiler system according to the present invention
FIG. 6 is an electrode bar of an external temperature sensing type boiler system according to the present invention in combination with FIG. 1
FIG. 7 is an electrode bar of an external temperature sensing type boiler system according to the present invention in combination with FIG. 2
FIG. 8 is an electrode bar assembly of an external temperature sensing type boiler system of the present invention FIG. 1
FIG. 9 is an electrode bar assembly of an external temperature sensing type boiler system of the present invention FIG. 2
FIG. 10 is a view showing a state where a surface area expanding groove is formed in an electrode rod of an external temperature sensing type boiler system according to the present invention
FIG. 11 is a view showing an example of the size of electrode rods of the external temperature sensing type boiler system according to the present invention
Description of the reference symbols
1: system for controlling a power supply
10: electrode bar
100: heat pump boiler
200: heating water supply pipe
300: control unit
400: electrode boiler part
500: check valve
Detailed Description
Embodiments of the present invention will be described in detail with reference to fig. 1 to 11.
Referring to fig. 1, the external temperature sensing type boiler system (hereinafter, referred to as a system) of the present invention is a boiler system that operates a heat pump boiler and an electrode boiler according to a sensed external temperature to appropriately heat and supply heating water, and can improve heating efficiency while effectively saving energy, thereby constructing an environment-friendly heating system.
That is, the system 1 of the present invention operates only the heat pump boiler to heat and supply the heating water if the sensed external temperature is higher than the set temperature or the temperature of the supplied heating water is higher than the target temperature, and operates not only the heat pump boiler but also the electrode boiler to heat and supply the heating water if the sensed external temperature is lower than the set temperature or the temperature of the supplied heating water is lower than the target temperature.
That is, the present invention improves the disadvantage of the heat pump boiler that the heating efficiency is decreased in the weather of low outside temperature by using the electrode boiler, so that the heating water of the target temperature can be supplied according to the outside temperature according to the season and the weather.
In particular, the heat pump boiler and the electrode boiler included in the system 1 of the present invention are environmentally friendly heating facilities that do not generate harmful gas, unlike fossil-fuel boilers, and therefore, if applied to individual houses, collective houses, and accommodation facilities such as hotels, and lodging dormitories, energy can be more effectively saved, and thus, industrial applicability is also high.
Referring to fig. 1 and 2, a system 1 according to the present invention includes a heat pump boiler 100, a heating water supply pipe 200, a control unit 300, an electrode boiler unit 400, and a control valve 500.
Specifically, the external temperature sensing type boiler system according to the present invention includes:
a heat pump boiler 100 for generating heating water by heating water supplied from the outside by a heat pump, and discharging the generated heating water through a heating water supply pipe 200;
a heating water supply pipe 200 for supplying heating water discharged from the heat pump boiler 100 to the electrode boiler unit 400 or a place where the heating water is used;
a controller 300 sensing an outside temperature and a temperature of heating water discharged from the heat pump boiler 100, and providing a boiler control signal for operating the electrode boiler 400 to the electrode boiler 400 according to the sensed outside temperature and the temperature of heating water discharged from the heat pump boiler 100;
an electrode boiler unit 400 for obtaining the heating water flowing in from the heating water supply pipe 200, heating the flowing heating water to a target temperature, and discharging the heated water to the heating water supply pipe 200, if the boiler control signal is received from the control unit 300;
and a check valve 500 formed on the heating water supply pipe 200 side and automatically adjusting the opening degree according to the inflow heating water flow rate.
Referring to fig. 1 and 2, the heat pump boiler 100 is configured to heat water supplied from the outside by a heat pump to generate heating water, and to discharge the generated heating water through a heating water supply pipe 200, and is configured to absorb heat of outside air in an evaporation unit by the heat pump, increase heat in a compressor, and heat water supplied from the outside by a condensation unit to obtain heating water.
Specifically, a water inlet pipe is formed at the front end of the heat pump boiler 100 to receive water supply from the outside, and a water outlet pipe is formed at the rear end of the heat pump boiler 100 to discharge heated heating water to the heating water supply pipe 200.
In addition, an air intake pipe is formed at one side of the heat pump boiler 100 in order to allow external air to be taken in.
Referring to fig. 1, the heating water supply pipe 200 is configured to supply heating water heated and discharged by the heat pump boiler 100 to the electrode boiler 420 or a place where the heating water is used, and a check valve 500 is formed at one side of the heating water supply pipe 200.
A first pipe 410 serving as a bypass pipe for supplying the heating water discharged from the heat pump boiler 100 to the electrode boiler 420 is connected to the heating water supply pipe 200 at the front end of the check valve 500, and a second pipe 430 serving as a bypass pipe for supplying the heating water discharged from the electrode boiler 420 to the heating water supply pipe 200 is connected to the heating water supply pipe 200 at the rear end of the check valve 500.
The controller, as shown in fig. 3, includes a first temperature sensor 310, a second temperature sensor 320, and an electrode boiler controller 330, as a structure for sensing an outside temperature and a temperature of heating water discharged from the heat pump boiler 100, and supplying a boiler control signal for operating the electrode boiler 400 to the electrode boiler 400 based on the sensed outside temperature and the temperature of heating water discharged from the heat pump boiler 100.
The first temperature sensor 310 is provided at a position where the outside temperature can be sensed as a structure for sensing the outside temperature, and the second temperature sensor 320 is formed at the heating water discharge side of the heat pump boiler 100 as a structure for detecting the temperature of the heating water discharged from the heat pump boiler 100.
The electrode boiler controller 330 is configured to control the operation of the electrode boiler 400, and to provide a boiler control signal for operating the electrode boiler 400 to the electrode boiler 400 if the outside temperature sensed by the first temperature sensor 310 is lower than a set temperature (e.g., 7 ℃) or the heating water temperature sensed by the second temperature sensor 320 is lower than a target temperature (e.g., 60 ℃).
Specifically, if the outside temperature sensed by the first temperature sensor 310 is lower than a set temperature (e.g., 7℃.) or the heating water temperature sensed by the second temperature sensor 320 is lower than a target temperature (e.g., 60℃.), the circulation pump 411 is operated by supplying a boiler control signal for operating the circulation pump 411 to the circulation pump 411, the electrode boiler 420 is operated by supplying a boiler control signal for operating the electrode boiler 420 to the electrode boiler 420, and a boiler control signal for operating the control valve 431 is supplied to the control valve 431, as shown in FIG. 4.
Referring to fig. 3 and 4, the electrode boiler unit 400 includes a first pipe 410, a circulation pump 411, an electrode boiler 420, a second pipe 430, and a control valve 431, and is configured to obtain the heating water flowing in from the heating water supply pipe 200, heat the flowing heating water to a set temperature, and discharge the heated water to the heating water supply pipe 200, if a boiler control signal is received from the controller 300.
In terms used in the description of the present invention, the target temperature refers to a temperature required for the use of the heating water, and the set temperature refers to a temperature at which the electrode boiler 400 heats the inflow heating water.
For example, in the case where the target temperature required at the heating water use is 60 ℃, the outside temperature is lower than the set temperature (for example, 7 ℃) or the temperature of the heating water discharged from the heat pump boiler 100 is lower than the target temperature 60 ℃ (for example, 55 ℃) because of an internal problem of the heat pump boiler 100.
At this time, the electrode boiler 400 is operated, and the electrode boiler 400 heats the heating water (e.g., 55 ℃) supplied from the front end of the check valve 500 to a set temperature (e.g., 65 ℃).
Then, as shown in fig. 4, the heating water heated to the set temperature (for example, 65 ℃) is joined to the heating water (for example, 55 ℃) passed through the check valve 500 at the rear end of the check valve 500, and the heating water at the target temperature (for example, 60 ℃) is supplied to the use of the heating water.
As shown in fig. 3 and 4, the first pipe 410 is a pipe having a front end connected to the heating water supply pipe 200 of the check valve 500, a rear end connected to the electrode boiler 420, and a circulation pump 411 is operated to receive the inflow of the heating water from the heating water supply pipe 200 and supply the heating water to the electrode boiler 420.
As shown in fig. 4, the circulation pump 411 is formed on the first pipe 410, and is operated if a boiler control signal is supplied from the electrode boiler controller 330 of the control unit 300.
In other words, if an operation control signal of the circulation pump 411, i.e., a boiler control signal, is supplied from the electrode boiler controller 330 of the control unit 300, the circulation pump 411 is operated, so that a part (for example, about 20 to 30% of the total heating water) of the heating water flowing through the heating water supply pipe 200 flows into the first pipe 410 and is supplied to the electrode boiler 420.
As shown in fig. 3 and 4, the second pipe 430 is a pipe whose front end is connected to the electrode boiler 420 and whose rear end is connected to the rear end heating water supply pipe 200 of the check valve 500, and supplies heating water heated to a predetermined temperature discharged from the electrode boiler 420 to the heating water supply pipe 200.
As shown in fig. 4, the control valve 431 is formed on one side of the second pipe 430, and is operated to be opened if a boiler control signal is supplied from the electrode boiler controller 330 of the control part 300. (remaining OFF until boiler control signal is provided, i.e., before run)
In other words, if an operation control signal of the control valve 431, i.e., a boiler control signal, is supplied from the electrode boiler controller 330 of the control part 300, the control valve 431 is operated to be opened, thereby allowing the heating water heated to a set temperature, which is discharged from the electrode boiler 420, to be supplied to the heating water supply pipe 200.
The electrode boiler 420 is operated when a boiler control signal is supplied from the electrode boiler controller 340 of the control unit 300, and includes an electrode rod 10 as a boiler for heating the heating water supplied from the first pipe 410 to a set temperature and discharging the heating water to the second pipe 430 during operation.
As shown in fig. 8, the electrode boiler 420 includes a boiler water tank 421, a water tank cover 422, a fastening member 423, and a plurality of electrode rods 10.
The boiler water tank 421 provides a space for storing electrolyzed water, the water tank cover 422 is a cover for covering the boiler water tank 421, and the plurality of electrode rods 10 are formed with fastening connection members 423 inserted into the boiler water tank 421.
In other words, the water tank cover 422 is coupled to the upper side of the boiler water tank 421, and the plurality of electrode rods 10 are inserted into the boiler water tank 421 by the fastening connection member 423.
The electrode boiler 420 is a boiler of one of the following ways: when the electrode rod 10 is inserted into the boiler water tank 421 storing the electrolyzed water and the electrolyzed water is heated in the process of being ionized by the electricity (current) flowing through the electrode rod, heat loss occurs frequently, and the electrode boiler system has almost no heat loss and small power consumption compared with the conventional electric heating rod system boiler, which is widely used.
In addition, the electrode boiler 420 does not have a combustion and explosion process, does not generate vibration and noise, and does not generate harmful substances such as Co, Co2, NOx, and the like, compared to an oil boiler using fossil fuel, and recently attracts attention as an environment-friendly boiler.
Therefore, in the electrode boiler 420, at least one electrode rod 10 is disposed inside the boiler water tank 421 as shown in fig. 8 in order to improve the ionization efficiency of the electrolyzed water by the electrode rod 10.
That is, the fixing screw portion 111 of the electrode 10 is coupled to the fastening member 423 provided in the water tub cover 422, and one side of the electrode 10 is fixedly provided in the water tub cover 422, whereby the electrode 10 is inserted into the boiler water tub 421 in which the electrolyzed water is stored, as shown in fig. 9.
At this time, if electricity is applied to the electrode rod 10 provided inside the boiler water tank 421, ionization of the electrolytic water stored inside the boiler water tank 421 is promoted, the electrolytic water is heated by frictional heat generated between ions during the ionization process, and the heated electrolytic water is supplied as heating water.
Referring to fig. 5 and 6, the electrode rod 10 included in the electrode boiler 420 according to the present invention includes an electrode rod body 11 and a surface area expanding device 12 as a structure for ionizing electrolytic water stored in a boiler water tank 421.
The electrode rod body 11 is formed in a cylindrical shape, is installed in a boiler water tank containing electrolytic water, and promotes ionization of the electrolytic water by means of an electric current flowing through an outer peripheral surface in contact with the electrolytic water.
In particular, the electrode rod body 11 is an electrolytic water ionization promoting device, is formed in a cylindrical shape, is inserted into a boiler water tank 421 containing electrolytic water, and then promotes the ionization of the electrolytic water by means of electricity (alternating current) flowing on an outer circumferential surface in contact with the electrolytic water, thereby heating the electrolytic water by means of frictional heat generated during the ionization process.
The principle of heating the electrolyzed water by ionization is as follows.
If electricity is applied to the electrode rod body 11, the electrolyzed water (e.g., brine) is ionized and simultaneously separated into positive (+) ions (e.g., Na ions) and negative (-) ions (e.g., Cl ions), and the ions are changed in polarity 60 times per 1 second (the electricity flowing in the electrode rod is a common alternating current, and thus the polarity is reversed 60 times per second) while generating attractive and repulsive forces between the ions, and frictional heat is generated by means of the attractive and repulsive forces, thereby heating the electrolyzed water.
At this time, as shown in fig. 8, a fixing screw portion 111 is formed at one side of the electrode main body 11, the fixing screw portion 111 is coupled and fixed to a boiler sump cover 422 via a fastening connection member 423 formed at the sump cover 422, and the electrode main body 11 is inserted into the boiler sump 421.
Accordingly, the electrode rod body 11 is installed in the boiler water tank 421 storing the electrolyzed water in a state of maintaining a certain depth, and the electrode rod body 11 in which the supplied electricity flows is prevented from directly contacting the boiler water tank 421.
If electricity flows in the electrode rod body 11 thus provided, the electrolyzed water contained in the boiler water tank 421 is ionized by means of electricity as described above.
Referring to fig. 5, the surface area expanding means 12 is electrically connected to the electrode rod body 11 so that the surface area of the electrode rod body 11, through which electricity can flow, is expanded.
At this time, as shown in fig. 6, the surface area expanding means 12 is formed in a spring shape, and is coupled to the outer peripheral surface of the electrode rod body 11 in a fitting manner, and both side ends are electrically connected to the upper side and the lower side of the electrode rod body 11, respectively.
In particular, the surface area expanding means 12 increases the area of contact with the electrolytic water, so that the electrolytic water ionization efficiency can be increased as compared with the conventional cylindrical electrode rod, and electrolytic water having a lower concentration than the conventional electrolytic water can be used.
Therefore, the spring-like surface area expander 12 for the above-described effects is coupled to the electrode rod body 11 by being fitted around the outer peripheral surface of the electrode rod body 11, and then electrically connected to the electrode rod body 11, so that the surface area of the electrode rod 10, on which electricity can flow, is expanded to the surface level of the spring-like surface area expander 12.
In this case, the surface area expander 12, which is coupled to the outer peripheral surface of the electrode rod body 11 while being fitted, is coupled to the outer peripheral surface of the electrode rod body 11 while being spaced apart from the electrode rod body 11 except for a portion electrically connected to the electrode rod body 11.
In particular, both side ends of the spring-shaped surface area expanding device 12 are electrically connected to the upper and lower portions of the electrode rod body 11, respectively, and the electrical connection may be made by welding or soldering.
In this case, a metal material having excellent electrical conductivity and corrosion resistance against the corrosion and oxidation of the electrolytic water should be used as the material for the electrode rod body 11 and the surface area expander 12, and therefore, a stainless steel material is preferably used.
The surface area expanding means 12, which is fitted over and joined to the outer peripheral surface of the electrode rod body 11 to expand the surface area, is suitably used as an electrolytic water ionization accelerating means, as is the case with the electrode rod body 11.
That is, since electricity flows on the surface of the surface area expander 12 electrically connected to the electrode rod main body 11 and the surface of the surface area expander 12 is in contact with the electrolytic water, the ionization of the electrolytic water is promoted by the electricity (alternating current) flowing on the outer peripheral surface of the surface area expander 12.
As a result, the electrode rod 10 of the present invention to which the spring-shaped surface area expander 12 is applied has a larger contact area with the electrolytic water than the conventional cylindrical electrode rod, and the electrolytic water ionization efficiency is improved accordingly.
In addition, expanding the surface area of the electrode rod 10 refers to increasing the size of the electrode rod 10. That is, the electrode rod 10, which is coupled by fitting the spring-like surface area expander 12 to the cylindrical electrode rod body 11, has a larger diameter than the electrode rod 10 constituted only by the cylindrical electrode rod body 11.
However, as shown in fig. 8 and 9, at least one or more electrode rods 10 are provided inside the boiler water tank 421, and the size of the electrode rods cannot be increased arbitrarily to expand the surface area of the electrode rods.
If the size of the electrode rod 10 is greatly increased, the distance from another electrode rod 10 having an increased size and installed inside the boiler water tank 421 is reduced, which causes not only a problem of a reduction in ionization efficiency of the electrolyzed water and a problem of an increase in oxidation degree of the electrode rod, but also a structural problem of installing a plurality of cylindrical electrode rods 10 having an increased size inside the boiler water tank 421 having a certain size.
Therefore, the size (diameter) of the electrode rod (cylindrical electrode rod body 11+ surface area expanding means 12) cannot be increased arbitrarily, and is preferably a value of 16mm to 21 mm.
In the present invention, the reason for limiting the size (diameter) of the electrode rod (the cylindrical electrode rod main body 11+ the surface area expanding means 12) to a value of 16mm to 21mm is to solve the above-described ionization problem, the oxidation problem of the electrode rod, and the installation space problem caused by the increase in the size of the electrode rod.
That is, the size (diameter) of the electrode rod (cylindrical electrode rod body 11+ surface area expanding means 12) is defined to a value of 16mm to 21mm, and in this state, it is necessary to maximize the surface area of the electrode rod.
The size (diameter) of the electrode rod is limited to a value of 16mm to 21mm, and in this state, in order to maximize the surface area of the electrode rod, the surface area expanding means 12 in a spring form is fitted over the outer circumferential surface of the cylindrical electrode rod body 11 and is bonded thereto.
For example, as shown in fig. 11, the diameter of the cylindrical electrode rod body 11 was set to 14mm, and the surface area expander 12 in the form of a spring having a diameter of 3mm was fitted over the outer peripheral surface of the cylindrical electrode rod body 11 having a diameter of 14mm at a spacing of 0.5mm and bonded thereto, whereby the diameter of the entire electrode rod (the cylindrical electrode rod body 11+ the surface area expander 12) reached a value of 21 mm.
Of course, the diagram shown in fig. 11 is merely an example of the combination of the cylindrical electrode rod main body 11 and the spring-like surface area expander 12 constituting the present invention, and various embodiments are possible under the condition that the size (diameter) of the electrode rod (the cylindrical electrode rod main body 11+ the surface area expander 12) is defined to be a value of 16mm to 21 mm.
In the spring-like surface area expanding device 12, a plurality of surface area expanding grooves 121 are formed on the surface of the spring-like surface area expanding device as shown in fig. 10, so that the contact area with the electrolyzed water is increased, and the ionization efficiency is further increased.
In this case, the surface area expanding grooves 121 can make the surface area expanding device 12 contact the electrolyzed water in a wider area than the spring-type surface area expanding device 12 in which the expanding grooves 121 are not formed, and therefore, the electrolyzed water ionization efficiency can be improved by that much, and the electrolyzed water heating efficiency can also be improved.
Referring to fig. 6, a protective cover 13 is further provided and formed at a portion (electric contact portion in fig. 6) where the spring-like surface area expanding means 12 and the electrode rod main body 11 are electrically connected.
As shown in fig. 7, the protective cover 13 is an insulating heat shrinkable sleeve made of a material having insulating properties and heat shrinkable properties, and is inserted into a portion (electric contact portion in fig. 6) where the spring-shaped surface area expanding unit 12 and the electrode rod body 11 are electrically connected, and then heated and heat shrunk.
That is, since the protective cover 13 is heated and thermally contracted after the portion (electric contact portion in fig. 6) where the spring-like surface area expander 12 and the electrode rod main body 11 are electrically connected is inserted, the protective cover 13 is bonded to the spring-like surface area expander 12 and the electrode rod main body 11 as shown in the right side view of fig. 7 in close contact therewith so as to prevent the portion (electric contact portion in fig. 6) where the spring-like surface area expander 12 and the electrode rod main body 11 are electrically connected from being exposed to the outside.
At this time, the reason why the portion (electric contact portion in fig. 6) where the spring-like surface area expanding device 12 and the electrode rod main body 11 are electrically connected is prevented from being exposed to the outside by the heat-shrinkable protective cover 13 as described above is that if electric current is applied, sparks may be generated in the portion where the electrode rod main body 11 and the surface area expanding device 12 are electrically connected, and thus adverse effects such as overheating or ionization inhibition of electrolytic water can be prevented in advance.
Referring to fig. 1 and 3, the check valve 500 is formed at one side of the heating water supply pipe 200, and a valve for automatically adjusting the degree of opening according to the flow rate of the heating water flowing into the check valve 500, and a spring plate for automatically adjusting the degree of opening according to the flow rate of the heating water flowing into the check valve 500 is formed inside the check valve 500.
Specifically, as shown in fig. 3, the check valve 500 is maintained in a 100% open state in a state where the electrode boiler part 400 is not operated.
That is, if the heating water does not flow into the electrode boiler 400, the spring plate provided inside is opened by 100% in order to supply all the heating water discharged from the heat pump boiler 100 to the heating water using place through the check valve 500.
In contrast, the electrode boiler 400 is not 100% turned on when it is in operation (i.e., when the outside temperature sensed by the first temperature sensor 310 is lower than a predetermined temperature (e.g., 5 ℃) or the temperature of the heating water sensed by the second temperature sensor 320 is lower than a target temperature).
That is, when the electrode boiler unit 400 is operated, a part (for example, about 20 to 30% of the total heating water) of the heating water discharged from the heat pump boiler 100 and flowing through the heating water supply pipe 200 flows into the electrode boiler unit 400, and the spring plate provided inside is not opened by 100% according to the inflow flow rate in order to supply the remaining heating water, which does not flow into the electrode boiler 400, to the heating water using place through the check valve 500. The state of being opened by 80% is illustrated in fig. 4.
The technical idea of the present invention is described above together with the accompanying drawings, which are only illustrative of preferred embodiments of the present invention and are not intended to limit the present invention. Further, it is obvious that a person having ordinary knowledge in the art, no matter who they are, can make various modifications and simulations within a scope not departing from the scope of the technical idea of the present invention.
Claims (7)
1. An external temperature sensing type boiler system using a heat pump boiler and an electrode boiler, comprising:
a heat pump boiler (100) that generates heating water by heating water supplied from the outside using a heat pump, and discharges the generated heating water through a heating water supply pipe (200);
a heating water supply pipe (200) for supplying heating water discharged from the heat pump boiler (100) to the electrode boiler unit (400) or a place where the heating water is used;
a control unit (300) that senses the outside temperature and the temperature of the heating water discharged from the heat pump boiler (100), and supplies a boiler control signal for operating the electrode boiler unit (400) to the electrode boiler unit (400) based on the sensed outside temperature and the temperature of the heating water discharged from the heat pump boiler (100);
an electrode boiler unit (400) which, upon receiving a boiler control signal from the control unit (300), obtains heating water flowing in from the heating water supply pipe (200), heats the flowing heating water to a set temperature, and discharges the heating water to the heating water supply pipe (200);
and a check valve (500) formed on one side of the heating water supply pipe (200) and automatically adjusting the opening degree according to the inflow heating water flow.
2. The external temperature sensing type boiler system according to claim 1,
the control unit (300) includes:
a first temperature sensor (310) that senses an external temperature;
a second temperature sensor (320) which is formed on the heating water discharge side of the heat pump boiler (100) so as to detect the temperature of the heating water discharged from the heat pump boiler (100);
and an electrode boiler controller (330) which provides a boiler control signal for operating the electrode boiler unit (400) to the electrode boiler unit (400) if the outside temperature sensed by the first temperature sensor (310) is lower than a set temperature or the heating water temperature sensed by the second temperature sensor (320) is lower than a target temperature.
3. The external temperature sensing type boiler system according to claim 1,
the electrode boiler part (400) includes:
a first pipe (410) in which a circulation pump (411) to be operated is formed on one side if a boiler control signal is supplied from the control unit (300), and the first pipe (410) obtains heating water flowing from a heating water supply pipe (200) at the tip of the check valve (500) and supplies the heating water to the electrode boiler (420) when the circulation pump (411) is operated;
an electrode boiler (420) which is operated if a boiler control signal is supplied from the control unit (300), and which, during operation, heats the heating water supplied from the first pipe (410) to a set temperature and then discharges the heating water to the second pipe (430);
and a second pipe (430), wherein the control valve (431) is formed on the side of the second pipe (430), the control valve (431) is opened when the boiler control signal is supplied from the control unit (300), and the second pipe (430) supplies the heating water heated to the set temperature and discharged from the electrode boiler (420) to the heating water supply pipe (200) at the rear end of the check valve (500).
4. The external temperature sensing type boiler system according to claim 3,
the electrode boiler (420) comprises an electrode rod (10) for ionizing electrolyzed water stored in a boiler water tank,
the electrode rod (10) comprises:
a cylindrical electrode rod body (11) which is provided inside a boiler water tank containing electrolytic water and promotes ionization of the electrolytic water by means of electricity flowing on the outer peripheral surface in contact with the electrolytic water;
a surface area expanding means (12) electrically connected to the electrode rod body (100) so that the surface area on which electricity can flow is expanded.
5. The external temperature sensing type boiler system according to claim 4,
the surface area expanding device (12) is formed in a spring shape and is combined with the peripheral surface of the electrode rod body (11) in a sleeved mode, and two side ends are respectively and electrically connected with the upper side part and the lower side part of the electrode rod body (11).
6. The external temperature sensing type boiler system according to claim 5,
the spring-like surface area expanding device (12) is further provided with a plurality of surface area expanding grooves (121) on the surface of the spring-like surface area to further expand the surface area in contact with the electrolyzed water.
7. The external temperature sensing type boiler system according to claim 5,
a protective cover (13) is arranged at the part of the spring-shaped surface area expanding device (12) which is electrically connected with the electrode bar body (11),
the protective cover (13) is a material having insulating properties and heat-shrinking properties.
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| KR1020190112749A KR102128482B1 (en) | 2019-09-11 | 2019-09-11 | A feedback control boiler system that is sensing exterior temperature |
| KR10-2019-0112749 | 2019-09-11 |
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