KR100590381B1 - Solar heating and domestic hot water system connected with a boiler for home - Google Patents

Abstract

The present invention relates to a solar hot water supply and heating system associated with a domestic boiler, the configuration of the first and second heat exchange coils (110, 120), the upper and lower direct inlet pipe 140 and the hot water discharge pipe (150) Is installed, and the temperature sensors 610, 620, 640, the pressure gauge 431 is installed and coupled around the first and second heat exchange coils (110, 120) and the upper side, respectively, the first and second The heat storage tank is composed of an automatic valve 151 that operates when the temperature sensor around the heat exchange coil is above a certain temperature, an overpressure safety valve 451 that operates when the temperature sensor is above a certain pressure, and a drain pipe 160 installed to discharge when they operate. 100; The first heat exchange coil 110 is connected by a heat collecting pipe 220, the expansion tank 420, the overpressure safety valve 450, the air vent 210, the pressure gauge 430, the temperature sensor 650 on one side A solar collector 200 installed and coupled to the differential pressure pump 411 for filling the heat medium of the heat collecting pipe 220, the heat medium filling tank 470, and valves 460, 461, and 462; The heat exchanger 320 connected to the second heat exchanger coil 120 and the heating pipe 340, and the heat exchanger 320 is piped on one side, the hot water discharge pipe 150 is the three-way valve 154 to the other side A gas boiler 300 having a hot water supply heat exchanger 370 piped such that the flow path is variable; And a second heat exchange coil 120, the heat exchanger 320, a heating pipe 340, and a heating load 500 are connected to each other so that the flow path is variable by the three-way valves 350 and 371 so as to allow heating. It is characterized by consisting of a heating pipe circuit and a temperature sensor.

Solar boiler system. Solar heating, solar hot water supply, heat storage tank, heat collection system

Description

Solar heating and domestic hot water system connected with a boiler for home}             

1 is a block diagram according to an embodiment of the present invention,

2 is a separate circulation diagram of hot water heating and heating heating according to an embodiment of the present invention,

3 is a heating water heating circulation diagram according to an embodiment of the present invention,

4 to 6 is a hot water heating circulation diagram according to the temperature according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

(100): heat storage tank (110): first heat exchange coil

120: second heat exchange coil (130): direct bypass hall

140: direct inlet pipe 141: drain valve

(150): hot water discharge pipe (151): automatic valve (solenoid valve)

(152): flow flow switch (153): mixing valve

(155): three-way valve connector (170): inlet pipe

(180): discharge pipe (200): solar collector

(210): air vent (220): heat collecting piping

300: gas boiler 310: burner

(320): heat exchanger (330, 410, 412): pump

(411): differential pressure pump (340): heating piping

(154, 371, 350, 360): Three way valve

(370): hot water supply heat exchanger (372): bypass piping

(373): Piping (380): Hot water heating piping

(420): expansion tanks (430, 431): pressure gauge

(440, 441): Check valve (450, 451): Safety valve

463: Filling pipe 470: Antifreeze filling tank

(480): Supply pipe (500): Heating load

(510): control panel (solar heating, heating)

(520): control panel (for boiler)

(610, 620, 630, 640, 650): Temperature sensor

The present invention relates to a solar boiler system that can be used as an auxiliary heat source by linking a solar collector and a heat storage system with a gas boiler. The present invention relates to a solar hot water supply and heating system in connection with a home boiler which increases energy efficiency by operating a solar heat collection and heat storage system and a gas boiler in an optimal state.

Conventional boilers supply hot water for heating and living using oil or gas as fuel, but the use of alternative energy is gradually increasing as the price of fossil fuel increases and the pollution problem caused by use increases.

In recent years, many solar boilers using solar heat, which require a lot of initial installation costs but do not require additional maintenance costs, do not cause pollution problems.However, as in Korea, the four seasons are distinct and the year-round altitude of the sun changes and the weather changes. In many cases, boiler systems that rely solely on solar heat did not have enough heat to provide heating and hot water for living.

That is, the size of the solar collector should be increased for the boiler system using only solar heat as a heat source, but it is difficult to use in a general home because it requires a large cost and a large installation space.

As a result, an improved solar boiler system has been developed in which solar heat is accumulated during daytime when solar heat is concentrated and hot water is charged to the heat storage tank by using electricity as an auxiliary heat source on a cloudy day or at night when there is no solar heat. Since the hot water cannot be heated enough to use the hot water and heating, the heat charging of the heat storage tank is mostly made by the late-night electricity at night when the solar collector is not operated, rather than the daytime when the solar heat is concentrated, so that the solar collector cannot be efficiently used. there was.

In addition, since most of the conventional pipes between the solar collector and the heat storage tank are formed of a single pipe using heat medium for water, there is a problem in that the pipes of the collector pipe side installed outside are freeze in winter.

An object of the present invention for solving the above problems is to detect the temperature, solar collector temperature, heating water temperature, etc. of each part of the solar heat storage tank by the sensor and to install a heat exchange coil connected to the solar heat collector and the gas boiler inside the heat storage tank, respectively, In addition to using solar heat and gas boilers as heating heat sources, it uses solar heat as hot water heating sources, and uses a gas boiler as an auxiliary heat source for hot water heating and heating heating, depending on the temperature of each part detected by the sensor. To provide.

The solar boiler system of the present invention to achieve the object as described above and to perform the problem for eliminating the conventional defects,

The first and second heat exchange coils 110 and 120, and a direct inflow pipe 140 and a hot water discharge pipe 150 are installed in upper and lower portions thereof, and the first and second heat exchange coils 110 and 120 are arranged outside. Temperature sensors 610, 620, 640 and pressure gauges 431 are installed and coupled to measure ambient and upper temperatures, respectively, and are operated when the temperature sensor around the first and second heat exchange coils is above a predetermined temperature. A heat storage tank 100 configured to be coupled to an overpressure safety valve 451 that operates when the pressure is above a predetermined pressure and a drain pipe 160 installed to be discharged when they operate;

Is connected to the first heat exchange coil 110 and the collection pipe 220, the expansion tank 420, overpressure safety valve 450, air vent 210, pressure gauge 430 temperature sensor 650 on one side Installed, the heat medium filling tank 470 for filling the heat medium of the heat collecting pipe 220, the differential pressure pump 411 and the check valve 441 provided in the pipe between the heat medium filling tank and the heat collecting pipe, the heat collecting pipe and the filling pipe A solar collector 200 composed of valves 460, 461, 462 installed on the coupling;

The heat exchanger 320 connected to the second heat exchanger coil 120 and the heating pipe 340, and the heat exchanger 320 is piped on one side, the hot water discharge pipe 150 is the three-way valve 154 to the other side A gas boiler 300 having a hot water supply heat exchanger 370 piped such that the flow path is variable; And

The second heat exchange coil 120 and the heat exchanger 320, the heating pipe 340 and the heating load 500 is connected to each other for the heating configured to be heated by the variable flow path by the three-way valve (350, 371) It is characterized by consisting of a piping circuit and a temperature sensor.

The inlet pipe 170 of the second heat exchange coil is connected to the heating inlet side of the heating pipe 340 through the three-way valve 350, and the discharge pipe 180 of the second heat exchange coil is the three-way valve 371. According to the switching, the pipe 371 connected to the heating outlet side of the heating pipe, and the bypass pipe 372 connected to the heating inlet side of the heating pipe is characterized in that the configuration.

The hot water heating pipe side inlet 380 of the hot water supply heat exchanger 370 is installed at the heating outlet side on the heat exchanger heating pipe in which the three-way valve 360 is installed, and the outlet is connected to the heating inlet side on the heating pipe. Characterized in that configured.

The hot water discharge pipe side of the hot water supply heat exchanger 370 is a pipe connected to the inlet side through the flow flow switch 152 according to the switching of the three-way valve 154, and the hot water supply according to the other direction switching of the three-way valve 152. Characterized in that it consists of a pipe directly connected to the outlet side pipe 155 without passing through a heat exchanger.

The three-way valve 152 is installed on the outside of the boiler is characterized in that the pipe is configured to be easily connected.

The heat collecting pipe 220 is configured to exchange heat with the heat storage medium in the first heat exchange coil installed inside the heat storage tank 100 by using an antifreeze (a mixture of water and glycol) as a heat medium, so that the heat storage medium has a density difference of the heat storage medium. The stratification is characterized in that it is configured to effectively use for hot water supply and heating.

Between the heat collecting pipe 220, the heat collecting pipe and the heat medium filling tank 470, an inlet pipe 170, and a heating pipe 340, respectively, a pump is installed to compare output information from each sensor, and a solar controller of the pump And configured to control operation.

The solar controller 510 when the temperature of the hot water supplied from the heat storage tank is high by connecting the direct water inflow pipe 140 and the hot water discharge pipe 150 to the direct water bypass tube 130 having the mixing valve 153 from the outside of the heat storage tank. It characterized in that the hot water and direct water mixed by the control of the configuration.

When the automatic valve 151 is installed outside the heat storage tank, when the temperature of the hot water of the heat storage tank is high, the superheated water of the heat storage tank is controlled to be partially discharged by the control of the solar controller 510.

In order to prevent overheating of the heat storage medium of the heat storage tank, when the heat storage tank reaches a predetermined temperature or more, the heat medium (antifreeze) circulation pump 410 is stopped to prevent the heat collection, and thus, when the heat collecting pipe 220 is overheated, The buffer is expanded in the expansion tank 420, and the secondary pressure overpressure safety valve 450 operates to discharge the heat medium to the outside, and the differential pressure pump 411 operates to match the set pressure of the heat collecting pipe after the above situation to replenish the heat medium. Characterized in that configured to be.

Filling pipe 463 is connected to the heat collecting pipe so that the air in the heat collecting pipe 220 when the antifreeze filling is easy to be installed in the heat medium filling tank 470, and the valve 462 installed in the filling pipe and It is characterized by consisting of the valves 460, 461 provided on both side heat collecting pipes 220 around the filling pipe 463.

In order to make the heat medium antifreeze mixed at an appropriate ratio to fill the heat collecting pipe 220, the pipe structure may be connected to the heat medium filling tank 470 to supplement the water supply pipe if necessary. It is characterized by.

Hereinafter, the configuration and the operation of the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram according to an embodiment of the present invention, the present invention is largely supplying high-temperature heating water to the solar collector 200, the external heating load 500 to convert solar energy into a hot water heating source. It is divided into a heat storage tank 100 is connected to the gas boiler 300, the solar collector 200 and the gas boiler 300, the first and second heat exchange coils (110, 120) for circulating hot water.

The solar heat collector 200 installed outside the building to collect solar heat is coupled to the heat collecting pipe 220 so as to exchange heat in the heat storage tank by connecting the first heat exchange coil 110 and the heat collector of the heat storage tank 100 to both ends. Is, the temperature sensor 650 for measuring the temperature of the solar collector 200 and the air vent 210 to discharge the high-temperature steam and bleed air when filling the antifreeze to the connection portion of the heat collecting pipe 220 ), And expansion tank 420, pressure gauge 430 is provided.

In addition, the filling pipe 463 and the valves (460, 461, 462) was configured to fill only the antifreeze in the pipe while removing the air in the pipe during the initial installation of the system of the present invention, filling the antifreeze in the heat collecting pipe (220), When the antifreeze in the heat collecting pipe 220 is exhausted by the evaporation or overpressure of the antifreeze, the differential pressure pump 411 connected to the heat medium filling tank 470 operates to fill the antifreeze in the heat collecting pipe.

In particular, the filling pipe 463 is connected to the heat collecting pipe is installed in the upper space of the heat medium filling tank 470, the valve 460, 461, 462 is centered on the valve 462 and the filling pipe 463 installed in the filling pipe It is installed on both side heat collecting pipe 220.

The heat medium circulating inside the heat collecting pipe 220 uses an antifreeze (preferably water 50vol% + ethylene glycol 50vol%) having a large heat capacity and a low freezing temperature and installs a circulation pump 410 for circulation. do.

The temperature sensor 650 is preferably installed on the outlet side for discharging the hot water heated in the solar collector 200.

In addition, the safety valve 450 also discharges the foreign matter such as capstone (관 石) generated while being heated in the solar collector 200 and the foreign matter contained in the hot water flowing through the collecting pipe 220 in parallel. can do.

Meanwhile, the antifreeze heated in the solar heat collector 200 in the first heat exchange coil 110 installed in the heat storage tank 100 circulates through the heat collecting pipe 220 and the heat storage tank 100 through the first heat exchange coil 110. Circulate inside and regenerate.

The reason for the direct heat exchange between the solar collector 200 and the heat storage tank 100 as described above is that the antifreeze and the heat storage medium of the heat storage tank are heat-exchanged at the portion of the first heat exchange coil 110 installed under the heat storage tank so that the temperature of the bottom of the heat storage tank is increased. When raised, the heat storage medium rises to the top of the heat storage tank due to the density difference, and is used to effectively use the stored hot water for hot water supply and heating.

The collecting pipe 220 includes a pump 410 capable of circulating the heated antifreeze, and a pressure gauge 430 for measuring pressure generated by hot water of high temperature together with a check valve 440 for circulating hot water in a predetermined direction. An expansion tank 420 for reducing pressure and pressure, and an overpressure safety valve 450 are installed.

On the other hand, the direct fluid inlet pipe 140 is connected to the heat medium filling tank 470 filling the antifreeze, so that it is easy to adjust the mixing ratio of the antifreeze when the antifreeze is filled, and a check valve 441 is installed at the lower end of the differential pressure pump 411. Thus, the antifreeze in the heat collecting pipe 220 was prevented from entering the heat medium filling tank 470.

The heat storage tank 100 which is heat-exchanged with the solar heat collector 200 by the heat collecting pipe 220 and the first heat exchange coil 230 is connected to a direct inflow pipe 140 through which direct water is supplied, and a hot water discharge pipe at the top thereof. 150 is connected. The direct water inlet pipe 140 is provided with a drain valve 141 for discharging the foreign matter, the hot water discharge pipe 150 is the temperature of the heat storage tank to prevent overheating and overpressure of the heat storage tank 100 is set temperature. When the operation is over, the automatic valve 151 and the drain pipe 160 are configured to discharge part of the heat storage tank. When the water in the heat storage tank is overheated, the mixing valve is heated to a certain temperature for the user's safety. 153). In addition, a pressure gauge 431 which always shows the pressure of the heat storage tank, and an overpressure safety valve 451 for preventing overpressure of the heat storage tank are installed in the heat storage tank. When the safety valve 451 is operated, the water of the heat storage tank is externally supplied. The drain pipe 160 for discharging the furnace is configured.

In addition, a three-way valve 154 is installed at one point of the hot water discharge pipe 150 outside the heat storage tank 100, and when the internal temperature of the heat storage tank measured by the temperature sensor 610 is 45 ° C. or more available as hot water, the solar controller 510 is By blocking the flow path toward the hot water heat exchanger 370, the hot water is configured to be connected to the hot water discharge pipe 150 passing the hot water heat exchanger 370 through the three-way valve connecting pipe 155.

In addition, the hot water discharge pipe 150 outside of the heat storage tank 100 between the start point of the hot water discharge pipe and the three-way valve 154 is connected to one side of the direct water draining chamber 130 having a mixing valve 153 and is directly connected to the direct water discharge pipe. Direct water flows in accordance with the opening of the mixing valve 153 through the direct water inlet pipe 140 connected to the other side of the 130, so that the internal temperature of the heat storage tank measured by the temperature sensor 610 is hard to be directly used by the user. (60 ° C. or more), the mixing valve 153 is opened so that the hot water passing through the hot water discharge pipe 150 discharged from the heat storage tank 100 and the cold water supplied from the direct water inlet pipe 140 are mixed to adjust the temperature of the hot water. It is lowered and supplied at the proper temperature. In this case, the three-way valve 154 blocks the flow path toward the hot water heat exchanger 370 and is switched to the three-way valve connection pipe 155 to connect the hot water heat exchanger 370 to the hot water discharge pipe 150.

On the other hand, inside the heat storage tank 100, the first heat exchange coil 110 and the inlet pipe 170 and the discharge pipe 180 connected through the solar collector 200 and the heat collecting pipe 220 as a medium. Since the two heat exchange coils 120 are installed, heat exchange is performed with the hot water stored in the heat storage tank 100, and the hot water temperature of the portion where the first heat exchange coils 110 and the second heat exchange coils 120 are installed is externally provided. Temperature sensors 640 and 620 that can measure are installed, respectively, and transmit the measured temperature information to the solar controller 510 as an electrical signal.

In addition, a separate temperature sensor 610 is installed above the temperature sensor 620 to measure the temperature of the uppermost portion of the heat storage tank 100 and sends it to the solar controller 510 as an electrical signal.

The gas boiler 300 connected to the heat storage tank 100 through the inlet pipe 170 and the discharge pipe 180 is provided with a heat exchanger 320 and a pump 330 heated by the burner 310, and is heated. It is connected to the external heating load 500 by the pipe 340.

On the other hand, the heating pipe 340 is provided with a three-way valve (350, 360), the inlet pipe 170 and the hot water heating pipe 380 connected to the second heat exchange coil 120 are connected, respectively, the second The discharge pipe 180 connected to the other side of the heat exchange coil 120 is connected to the heating outlet port of the heating pipe 340 through the three-way valve 371 outside the boiler 300.

In addition, according to the switching of the three-way valve (371) if necessary bypasses along the bypass pipe 372 is connected to the heating inlet side pipe of the heating pipe (340).

In addition, the three-way valve 350 connected to the inlet pipe 170 of the three-way valve is installed outside the boiler so that the pipe is easily connected.

In addition, the hot water heating pipe 380 circulates the hot water supply heat exchanger 370 installed on one side of the gas boiler 300, the heating water from the heating load 500 to the heat exchanger 320 of the gas boiler 300. It is connected to the entrance. At this time, the connection position is preferably connected to the upper side than the three-way valve 350, that is close to the heat exchanger (320).

If the hot water heating pipe 380 is connected to a place other than the position described above, the hot water circulating in the second heat exchange coil 120 does not pass through the heat exchanger 320 of the gas boiler 300, thereby achieving the object of the present invention. It becomes impossible.

On the other hand, since the hot water heat exchanger 370 passes through the hot water discharge pipe 150 connected to the heat storage tank 100 in addition to the hot water heating pipe 380, heat exchange between the hot water heating pipe 380 and the hot water discharge pipe 150 is mutually performed. Is done.

One side of the heating pipe 340 is provided with a temperature sensor 630 to measure the temperature of the hot water circulating the gas boiler 300 is sent to the solar controller 510. The solar controller 510 compares the temperature measured by the temperature sensors 610, 620, 630, 640, and 650 with the temperature set by the user, and the three-way valves 350, 360, 154, and valves 460, 461, It controls the operation of the 462, and is also connected to the main controller 520 as an electrical signal device to control the operation of the gas boiler (300).

More specifically, in relation to the operation of the pump, when the temperature measured by the temperature sensor 620 located in the middle of the heat storage tank is higher than the return pipe temperature of the heating pipe 340, the three-way valve 350 is the solar heat storage tank inlet direction 170 Is converted to) and flows to the inlet of the solar heat storage tank, the flow of hot water exiting the solar heat storage tank discharge pipe 180 is divided into two. That is, the hot water from the solar heat storage tank receives the heat from the discharge pipe 180 flows directly into the heating load 500 according to the switching direction to the three-way valve 154, or passes through the gas boiler 300 heating load ( Or 500). If the temperature measured by the temperature sensor 620 is lower than the return pipe temperature of the heating pipe 340, the three-way valve 350 flows into the boiler as it is switched to the gas boiler direction. Heated hot water flows into the heating load 500 to circulate.

The heating water that has undergone heat exchange in the heating heat exchange coil 120 in the heat storage tank is connected to the heating outlet side pipe of the heating pipe 340 of the external heating load 500 through the three-way valve 371 through the discharge pipe 180 and operated. When the solar circulation pump 460 can be operated only by one operation, and inevitably when the boiler 300 and the heat storage tank 100 are located at a considerable distance, that is, when the circulation head is insufficient, the circulation pump 330 is utilized. To make it possible.

That is, when it is necessary to utilize the circulation pump 330, the bypass along the bypass pipe 372 in accordance with the switching of the three-way valve 371, not the heating export outlet side pipe of the heating pipe 340 connected to the heating load 500. Should be connected to the heating inlet side of the heating pipe (340).

The method of connecting to the heating inlet-side pipe through the bypass pipe 372 is to detect the temperature in the heat storage tank 100, the main controller 520 stops the operation of the burner during the boiler function if the temperature is possible by heating The control device was configured to operate only the circulation pump 330.

Figure 2 shows the individual circulation diagram of the hot water heating and heating heating according to an embodiment of the present invention, the temperature of the antifreeze measured by the temperature sensor 650 of the solar collector 200 is the temperature installed under the heat storage tank (100) When the temperature of the hot water measured by the sensor 640 is 7 ° C. or more, the pump 461 installed in the heat collecting pipe 220 is operated so that the deviation of the temperature measured by the temperature sensors 650 and 640 becomes 3 ° C. or less. The hot water is circulated until heat exchange is performed in the first heat exchange coil installed in the heat storage tank between the water stored in the heat storage tank 100 and the heat medium (antifreeze) heated in the solar collector 200. In this case, the temperature deviation may vary according to the user's setting.

3 illustrates a heating water heating circulation diagram according to an embodiment of the present invention, wherein the hot water temperature (temperature measured by the temperature sensor 620) of the heat storage tank 100 received by the solar controller 510 is a heating load. The hot water flow in the case of higher than the temperature of the hot water (temperature measured by the temperature sensor 630) circulating 500 is discharged.

In this case, the solar controller 510 opens the three-way valve 350 installed in the heating pipe 340 through the electrical signal to the inlet pipe 170 connected to the second heat exchange coil 120 of the heat storage tank 100. In addition, by operating the pump 460, the hot water deprived of the heat from the heating load 500 circulates the second heat exchange coil 120 while absorbing the heat stored in the heat storage tank (100) of the gas boiler (300) again It is circulated to the heat exchanger 320, or circulates directly into the heating load 500 without circulating the gas boiler 300.

The circulation of the hot water is started until the temperature measured by the temperature sensor 620 installed near the second heat exchange coil 120 starts at 50 ° C. or higher until the temperature of the temperature sensor 620 is 45 ° C. or lower, or The circulation is up to 5 ° C. or less than the temperature of the outlet of the heating load 500, and the hot water is smoothly circulated by the pump 460 installed in the inlet pipe 170.

Therefore, in the heating water heating circulation, the heating water deprived of heat from the heating load 500 is preheated in the heat storage tank 100 heated by the solar collector 200 and then circulated to the heat exchanger 320 of the gas boiler 300. Reheating can increase the thermal efficiency of the gas boiler 300 and at the same time have the advantage of saving fuel.

4 to 6 illustrate the hot water heating circulation according to the temperature according to an embodiment of the present invention, the hot water temperature of the heat storage tank 100 received by the solar controller 510 (temperature measured by the temperature sensor 610). ) Is lower than the set temperature, it shows the circulation of hot water when it is not suitable for use in bathing or cooking (see Fig. 4).

In this case, the solar controller 510 operates the gas boiler 300 installed in the heating pipe 340 and opens the three-way valve 360 toward the hot water heating pipe 380 to heat the hot water heated by the heat exchanger 320. Only through the pipe 380 to the hot water heat exchanger (370).

Since the hot water of the hot water heated by the heat exchanger 320 is filled in the hot water heat exchanger 370, the low temperature water discharged through the hot water discharge pipe 150 is heated in the hot water heat exchanger 370 and then discharged to the outside. Will be. At this time, the three-way valve 154 is opened toward the hot water heat exchanger 370 to block the flow to the three-way valve connecting pipe 155.

In addition, the antifreeze heated in the solar collector 200 and the hot water heat exchanged in the first heat exchange coil heat the hot water of the heat storage tank 100.

Therefore, as the temperature of the hot water heat-exchanged with the antifreeze heated in the solar collector 200 is stored in the upper layer of the heat storage tank 100 due to the difference in density, only water as much as the user uses is rapidly heated and heated. There is an advantage that can provide hot water to the user faster.

In addition, a three-way valve 154 is installed at one point of the hot water discharge pipe 150 outside the heat storage tank 100, and when the internal temperature of the heat storage tank measured by the temperature sensor 610 is 45 ° C. or higher usable as hot water, the solar controller 510. Blocks the flow path toward the hot water supply heat exchanger 370 so that the hot water is connected to the hot water discharge pipe 150 passing the hot water heat exchanger 370 through the three-way valve connecting pipe 155 (see FIG. 5).

In addition, one side of the direct bypass pipe 130 having a mixing valve 153 is connected to one point of the hot water discharge pipe 150 outside the heat storage tank 100, and a direct inflow pipe 140 connected to the other side of the direct bypass pipe 130. Direct water flows in accordance with the opening of the mixing valve 153 through the) and when the internal temperature of the heat storage tank measured by the temperature sensor 610 is overheated so that it is difficult for a user to directly use the mixing valve 153. ) Is opened to allow the hot water passing through the hot water discharge pipe 150 discharged from the heat storage tank 100 and the cold water supplied from the direct water inflow pipe 140 to be lowered and supplied at an appropriate temperature. In this case, the three-way valve 154 blocks the flow path toward the hot water heat exchanger 370 and is switched to the three-way valve connection pipe 155 to connect the hot water heat exchanger 370 to the hot water discharge pipe 150. (See FIG. 6)

Reference numeral 530 is an indoor temperature controller for adjusting by setting the main controller 520.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, according to the solar boiler system of the present invention, since the gas boiler is used at the appropriate time while maximizing solar heat, a large capacity solar collector is not required, and the three-way valve according to the temperature sensor installed in the solar collector, the heat storage tank, and the gas boiler is used. According to the operation of the hot water circulation and heating circulation to maximize the energy saving effect, and

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The heat collecting pipe 220 connected to the solar heat collector 200 is configured to be directly heat-exchanged with the first heat exchange coil 110 installed in the heat storage tank 100 to form an antifreeze of the heat collecting pipe 220 and a heat storage medium of the heat storage tank 100. The heat storage medium is heated at the bottom of the heat storage tank and the heated heat storage medium is raised to the top of the heat storage tank by the difference in density, so that the stored hot water can be effectively and quickly used for hot water supply and heating. It is an invention that the use of phase is greatly expected.

Claims (11)

delete delete The first and second heat exchange coils 110 and 120, a direct inflow pipe 140, and a hot water discharge pipe 150 are installed at upper and lower sides thereof, and the first and second heat exchange coils 110 and 120 are disposed outside. And a temperature sensor 610, 620, 640 and a pressure gauge 431 are respectively installed and coupled to measure the upper temperature, the automatic valve 151 which is operated when the temperature sensor around the first and second heat exchange coils is above a predetermined temperature, A heat storage tank (100) configured to be coupled to an overpressure safety valve (451) that operates when a predetermined pressure or more and drain pipe (160) installed to be discharged when they operate; Is connected to the first heat exchange coil 110 and the collection pipe 220, the expansion tank 420, overpressure safety valve 450, air vent 210, pressure gauge 430 temperature sensor 650 on one side Installed, the heat medium filling tank 470 for filling the heat medium of the heat collecting pipe 220, the differential pressure pump 411 and the check valve 441 provided in the pipe between the heat medium filling tank and the heat collecting pipe, the heat collecting pipe and the filling pipe A solar collector 200 composed of valves 460, 461, 462 installed on 463; The heat exchanger 320 is connected to the second heat exchanger coil 120 and the heating pipe 340, and the heat exchanger 320 is piped to one side, and the hot water discharge pipe 150 is connected to the other side. A gas boiler 300 having a hot water supply heat exchanger 370 piped to be variable; And a second heat exchange coil 120 and the heat exchanger 320, a heating pipe 340, and a heating load 500 are connected to each other, and a heating pipe circuit and a temperature configured to allow heating by varying a flow path by a three-way valve. In the solar hot water supply and heating system in conjunction with the household boiler composed of sensors, The inlet pipe 170 of the second heat exchange coil 120 is connected to the heating inlet side of the heating pipe 340 through the three-way valve 350, and the discharge pipe 180 of the second heat exchange coil 120. It is composed of a pipe connected to the heating outlet side of the heating pipe 340 and the bypass pipe 372 connected to the heating inlet side of the heating pipe 340 in accordance with the switching through the three-way valve (371), The hot water heating pipe 380 side inlet of the hot water heat exchanger 370 is installed at the heating outlet side on the heating pipe 340 of the heat exchanger 320 in which the three-way valve 360 is installed, and the outlet is the heating pipe 340. And connect it to the heating inlet side on the When the temperature of the hot water supplied from the heat storage tank is high by connecting the direct water inflow pipe 140 and the hot water discharge pipe 150 with the mixing valve 153 from the outside of the heat storage tank to the control of the solar controller. By mixing hot water and direct water, When the heat storage tank 100 is overheated, the automatic discharge valve 451 and the pipe 160 are configured to discharge a part of the superheated water, and the solar controller preferentially collects circulation to prevent overheating of the heat storage tank. Solar hot water supply, heating system in conjunction with the domestic boiler, characterized in that configured to include the pump 410 configured to stop. delete delete delete delete delete delete delete delete

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