KR101168542B1 - Solar thermal energy hot water system equipped heat storage tank in apartment and control method thereof - Google Patents

Abstract

PURPOSE: A hot water system using solar heat equipped with a heat storage tank for each apartment house is provided to prevent the overheating as water is drained through a 2-way valve, and cold water is supplied. CONSTITUTION: A hot water system using solar heat comprises a solar collection unit(100), an unit household management unit(200), and a pipe unit(400). The pipe unit comprises first and second pipes, a solar collector temperature sensor, a first 2-way valve, a heat medium tank, a circulation pump(P2), and a pressure sensor. The firs pipe connects the inlet and outlet of a solar heat collector, and comprises a closed loop. The solar collector temperature sensor is installed in the outlet of the first pipe. The second pipe is branched from the first pipe in parallel, and connected to a heat storage tank for each household. The first 2-way valve is installed in the second pipe, and controlled by a controller(220). The heat medium tank supplements a thermal medium under the control of a main controller(320). The pressure sensor transmits signals to the main controller by measuring the internal pressure of the thermal medium.

Description

SOLAR THERMAL ENERGY HOT WATER SYSTEM EQUIPPED HEAT STORAGE TANK IN APARTMENT AND CONTROL METHOD THEREOF}

The present invention relates to a solar hot water system having a heat storage tank for each unit of a multi-family housing and a control method thereof, and more particularly, to provide energy efficiency by using a heat storage tank for each unit in a multi-family housing such as an apartment. The present invention relates to a solar hot water system equipped with a heat storage tank for each unit of an apartment house improved to increase the cost and to reduce the cost of using hot water, and a control method thereof.

As is well known, hot water systems used for heating and hot water supply, etc. have been developed mainly in the form of boiler systems that use briquettes, oil, gas and electricity as fuel.

However, many studies have been conducted in order to deplete fossil fuels and secure alternative energy resources, and as a result, interest in solar thermal energy is increasing.

Accordingly, Korean Utility Model Registration Application Nos. 1992-17798 (solar water heaters), 193-20337 (solar water heaters) and 193-20093 (heating devices using solar water heaters) have been disclosed. As a method of collecting and storing in an integrated or separate heat storage tank, its configuration and structure are simplified.

In addition, these disclosed technologies simply use solar heat, and thus are configured in a state where there is no alternative to poor heat collection and inability to collect during late-night hours. To solve this problem, when the capacity of the integrated or separate heat storage tank is increased, installation and construction are performed. The problem was that the cost was excessively high, and it was also not practical to provide a stable and economical heat supply.

As another example, Korean Patent Laid-Open Publication No. 1999-0039418 and Registered Room No. 0269572 have been disclosed. They are heat generated in a collector arranged to collect solar heat on the outside of a structure by operating a circulation pump according to a temperature sensor to generate heat generated in the collector. Is transferred to the heat storage tank and heats the stored water through heat exchange in the heat storage tank, but since the heat collector for collecting solar heat is a flat panel structure in which a plurality of condensing cells or vacuum glass tubular heat collecting plates are arranged, Practical use was very low due to space limitations.

As a technology to improve this, the registered patent No. 00801321 has been disclosed.

However, the improvement technology is focused on solving the space constraints, so that the energy efficiency is low when constructing a solar hot water system in an apartment house such as an apartment, and it is a simple hot water system that is limited to unit households. This was required.

In particular, there have been few examples of a systematic system for effectively utilizing solar thermal energy for each unit generation in a multi-unit housing complex.

In addition, most of the solar hot water system related technologies disclosed so far use antifreeze as a heat medium, which is vaporized inside the pipe depending on the temperature in use, causing a strong pressure rise, which may cause an accident or circulating pump. Frequent malfunctions have occurred.

To solve this problem, it is necessary to cool the solar collector in various forms such as installing a heat sink on the solar collector or installing a curtain on the collector plate itself. There were many limitations such as high price.

The present invention was created in order to build the most efficient solar hot water system for each unit household in a multi-unit dwelling house in consideration of all the problems of the prior art as described above, a boiler system and a solar system installed in each unit household Solar hot water system equipped with a heat storage tank for each unit generation of a multi-family house that reduces energy consumption, maximizes the efficient use of energy, reduces the cost of energy use, and increases the stability of the system, thereby enabling long life. The main purpose is to provide a control method.

According to an aspect of the present invention, there is provided a solar hot water system having a heat storage tank for each unit generation in a multi-family house, comprising: a solar heat collector including a solar heat collector that collects solar heat; The heat storage tank for each unit generation receiving and receiving heat energy collected through the solar collector, the unit generation upper and lower temperature sensors respectively installed at the top and bottom of the heat storage tank for each unit generation, the boiler installed for heating in each unit generation, and the unit generation A unit generation management unit including a three-way valve installed to draw hot water of each heat storage tank in association with the boiler, and a unit-generation controller for controlling the opening degree of the three-way valve according to the temperature value detected by the unit temperature upper temperature sensor; The detection temperature value of the lower unit temperature sensor and the detected temperature value of the collector temperature sensor are compared to determine whether to control the circulation pump according to the difference value, and installed in the machine room of the apartment house to control the controller for each unit generation. A main controller; A first pipe constituting a closed circuit in which a heat medium circulates by connecting an outlet side and an inlet side of the solar collector, a heat collector temperature sensor installed at an outlet side of the first pipe, and branched in parallel from the first pipe to accumulate heat for each unit generation The second anisotropic valve connected to the heat exchanger in the tank, the first anisotropic valve respectively installed in the second pipe and controlled by a unit-specific controller, and the heat medium tank installed at the inlet side of the first pipe and supplementing the heat medium under the control of the main controller. And a circulating pump for refluxing the pressurized pump and the heat medium, and a pipe part installed at an inlet side of the first pipe and including a pressure sensor measuring the internal pressure of the heat medium and transmitting a signal to the main controller. It provides a solar hot water system equipped with a heat storage tank for each generation.

At this time, the inlet side of the first pipe constituting the pipe portion as a buffer for buffering the internal pressure during the volume expansion of the heat medium, characterized in that the expansion tank is further provided.

In addition, the inlet side of the first pipe constituting the pipe portion is characterized in that the drain is further configured to relief the end of the first pipe under the control of the main controller when the pressure value detected by the pressure sensor is more than the set value. have.

In addition, the lower end of the heat storage tank for each unit generation is characterized in that the diffuser is further installed to induce temperature stratification by diffusing the incoming water.

Furthermore, the present invention provides a method for controlling a solar hot water system equipped with a heat storage tank for each unit generation described above; A collecting step of collecting solar heat through the solar collector; The heat collected in the collecting step is circulated to the heat storage tank for each unit generation, and the heat storage is performed. When the temperature difference is higher than the set value by comparing the temperature value detected from the lower unit temperature sensor with the temperature collector temperature sensor, the circulation pump is operated. Turn on the circulating pump when the temperature is below a certain temperature, and control the temperature difference. When the difference between the temperature value detected by the unit temperature lower temperature sensor and the temperature value detected by the collector temperature sensor is higher than the predetermined value, It also provides a control method for a solar hot water system equipped with a heat storage tank for each unit generation of the apartment house, characterized in that the heat storage step of opening, and the heat storage control in the form of closing the first anisotropic valve when the temperature is below a predetermined temperature. do.

In this case, in the collecting step, if the measured value of the pressure sensor is less than the set pressure, the heat medium in the first pipe is insufficient. Therefore, the pressure pump is operated, the circulation pump is operated at the same time, and the anisotropic valve is opened to store in the heat medium tank. Controlling to supply a certain amount of heat medium; When the pressure measured by the pressure sensor is higher than the set pressure, the anisotropic valve is closed, the pressurized pump is turned off, and the control to switch to the circulation pump temperature control condition is also characterized by the feature.

In addition, in the heat storage step for each unit generation, the use of hot water is to open the three-way valve in the direction of the hot water load direction when the temperature value detected from the unit temperature upper temperature sensor is above a certain temperature to direct the hot water of the heat storage tank for each unit generation from the mixing valve Mixed with; If the temperature value detected from the unit temperature upper temperature sensor is below a certain temperature and is not suitable for use as hot water, the three-way valve is opened in the direction of the boiler so that the water inside the heat storage tank for each unit generation is heated with a boiler and then mixed in the mixing valve. It is also characterized by mixing with direct water.

According to the present invention, the condensing boiler system and the solar hot water system are used in combination, thereby minimizing the consumption of fossil fuel and constructing an efficient hot water system, and the organic control between the system and the product through the microcomputer control method is possible. It can reduce the consumption, improve the reliability and increase the energy efficiency.

1 is a schematic configuration diagram showing a solar hot water system for each unit of a multi-family house according to the present invention.
Figure 2 is a specific system diagram of the solar hot water system for each unit of a multi-family house according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram showing a solar hot water system for each unit of a multi-family house according to the present invention.

As shown in FIG. 1, the solar hot water system provided with a heat storage tank for each unit generation of a multi-family house according to the present invention includes a solar heat collecting unit 100 for collecting solar heat and a heat collecting unit through the solar heat collecting unit 100. A unit generation management unit 200 configured to receive the supplied solar energy and utilize each unit household of the apartment house, and a pipe unit 400 connecting the solar heat collecting unit 100 and each unit household management unit 200 to transfer thermal energy. It is configured to include).

At this time, the solar collector 100 is a solar collector 110 installed on the roof of a house, such as an apartment, or a balustrade or porch for each unit, as shown in FIGS. 1 and 2, and the solar collector 110. The first heat pipe 410 constituting a closed circuit to transfer the heat obtained from the solar heat collector 110 through the heat medium circulating through the heat collector 110, and the solar heat collector 110 to measure the temperature of the heat obtained from the solar heat collector 110 Including a heat collector temperature sensor (T1) installed on the outlet side first pipe 410 of the circulating heat medium and the circulation pump (P2) for circulating the heat medium flowing inside installed in a location on the first pipe 410 It is composed.

In this case, the first pipe 410 is drawn out from the outlet side of the solar heat collecting pipe 110 and then connected all of the plurality of heat storage tanks 210 for each unit generation in parallel and then of the solar heat collector 110 Piped to enter the inlet side to form a closed circuit.

In addition, the plurality of second pipes 420 drawn out to be connected in parallel from the first pipe 410 may form a closed circuit wound a plurality of times in a coil form in the heat storage tank 210 for each unit generation to increase heat exchange efficiency. In order to control the flow rate and to control the flow rate, the inlet part of the second pipe 420 is provided with a constant flow rate valve 510, respectively, between the constant flow rate valve 510 and the heat storage tank 210 for each unit generation. First relief valves 520 are respectively installed.

At this time, CONSTANT FLOW VALVE is a valve that reduces the cross-sectional area of the flow path as the flow rate of the fluid moving through the pipe increases and maintains the flow rate to the rear end constant. There are a variety of types, ranging from complex structures with valve bodies actuated by hydraulic or spring to simple structures with variable barrier materials made of rubber.

In the present invention, the flow rate valve 510 is used to prevent flow loss and to allow quantitative control.

In addition, as shown in Figure 2, the solar heat collector 100 is provided with means for replenishing the heat medium is lost, the means is a heat medium tank having a safety valve 132 and an anisotropic valve 134 ( 130, and a pressure pump (P1) for supplying the heat medium stored in the heat medium tank (130).

At this time, the heat medium tank 130 is branched from a part of the first pipe 410 through the safety valve 132, the pressure pump (P1) is a heat medium stored in the heat medium tank 130 It is a means for forcibly pumping and supplying the inside of the first pipe 410.

In this case, the connection position of the heat medium tank 130 and the safety valve 132 is most preferably installed in the inlet side of the heat medium circulating the first pipe 410 to the solar collector 110 in terms of efficiency. .

In addition, the heat medium may cause an inoperation of the circulation pump P2 as the pressure rises in the first pipe 410 or vaporizes at a high temperature, and thus, the expansion tank 150 as a primary buffer means to prevent this. Is further provided, in addition to the pressure sensor 160 is added to detect the internal pressure, the solar heat collector (1) of the first pipe 410 so as to protect the facility by discharging a portion of air and heat medium when the limit is exceeded ( 110) It has a structure in which a part of air and a heat medium can drain the inlet side.

In addition, as described later, each unit generation management unit 200 also has the same overheat prevention function as that of the solar heat collecting unit 100 described above, that is, a kind of cooling function, thereby virtually preventing overheating of the solar heat collector 100 and the first pipe. (410) It is possible to suppress the rapid pressure fluctuations or vaporization of the heat medium flowing through the inside to prevent the high efficiency of energy utilization and equipment failure, and to achieve the long life of the equipment.

On the other hand, the unit household management unit 200 is connected to the heat storage tank 210 for each unit, the controller 220, the boiler 230 for each unit, and the heat storage tank 210 for each unit and the boiler 230 by connecting It includes a number of pipes that allow the use of heating water and hot water.

At this time, the lower and upper units of the heat storage tank 210 for each unit generation unit unit lower temperature sensor (T2 ') and unit unit upper temperature sensor (T3') for checking the water temperature difference inside the heat storage tank 210 for each unit generation. Are installed respectively.

The unit generation controller 220 is a unit generation control unit for controlling the opening or opening of various valves installed on a pipe to be described later, wherein the unit generation lower temperature sensor T2 'and the unit generation upper temperature sensor ( The opening and closing of the valves are controlled through the temperature difference detected in T3 '.

In addition, the controller 220 for each unit generation is connected to and controlled by the main controller 320 to be described later, the main controller 320 may be installed in the machine room of the apartment house.

In addition, the boiler 230 preferably uses a condensing gas boiler.

More specifically, referring to FIG. 2, the direct water introduced through the straight pipe 240 is branched and configured to be supplied to the lower portion of the heat storage tank 210 for each unit and the faucet T.

At this time, the direct water branched into the tap (T) is configured to be mixed with hot water through the mixing valve 244, according to the user's choice in the tap (T) may use cold water, hot water may be used You can also use a mixture of cold and hot water.

And, the drain pipe 246 drawn from the upper end of the heat storage tank 210 for each unit generation is connected to the three-way valve 250, the hot water pipe 232 of the boiler 230 is connected to one end of the three-way valve 250. On the other end, a connecting pipe 248 connected to the mixing valve 244 is piped.

Here, the branch pipe 260 branched before the drain pipe 246 is connected to the three-way valve 250 is further connected, the branch pipe 260 is connected to the drain, the controller per unit generation 220 The second anisotropic valve 261 which is controlled by opening and closing is provided.

Therefore, when the heat storage tank 210 for each unit generation is overheated, the overheated steam or water is drained through the branch pipe 260, thereby preventing overheating.

Of course, it is a matter of course that the safety pipe 262 and the safety valve 264 connected to the drain are provided at the upper end of the heat storage tank 210 for each unit generation.

In addition, the heating pipe 234 connected to the boiler 230 is configured in the same manner as before.

In addition, the three-way valve 250 and the indoor temperature controller 236 for controlling the boiler 230, which are not described, are all connected to the unit generation-specific controller 220 and controlled.

In addition, when direct water is supplied to the lower portion of the heat storage tank 210 for each unit generation through the direct pipe 240, a temperature diffuser is induced by using a diffuser (not shown), thereby increasing thermal efficiency. One is also a feature of the invention.

In other words, the cold water is diffused so as not to be directly supplied to the upper portion of the heat storage tank 210 for each unit generation, which is maintained at a high temperature, and convection upwards while forming a temperature gradient from the bottom of the heat storage tank 210 for each generation. As a result, the upper portion is always maintained at a high temperature, thereby increasing the efficiency of using hot water.

For this reason, as described above, the upper and lower temperatures of the heat storage tank 210 for each unit generation are measured in real time using the unit generation lower temperature sensor T2 'and the unit generation upper temperature sensor T3'.

Here, the diffuser is already well known and need not be specifically mentioned, but the most common circular diffuser or a downwardly sprayed diffuser will be preferable.

On the other hand, the main controller 320 is the controller for each unit generation 220 and the safety valve 132, anisotropic valve 134, pressure pump (P1), circulation pump (P2), pressure sensor 160, The collector temperature sensor T1 is also controlled.

The present invention made up of such a configuration is controlled in the following manner.

First, a heat collecting step through the solar collector 110 is performed.

The collecting step is a step in which heat is transferred to a heat medium circulating inside the solar collector 110 by receiving solar heat from the sun through the solar collector 110.

At this time, as the heat medium is evaporated by high heat, extreme pressure fluctuations may occur inside the pipe, and in preparation for such a phenomenon, it can be controlled in the following manner.

For example, when the pressure measured by the pressure sensor 160 is less than the set pressure, the heat medium in the first pipe 410 is insufficient. In this case, the pressure pump P1 is operated, and at the same time, the circulation pump P2 is operated. Open the anisotropic valve 134 to supply a certain amount of the heat medium stored in the heat medium tank 130 while removing the air.

On the other hand, when the pressure measured by the pressure sensor 160 is greater than the set pressure, the anisotropic valve 134 is closed, the pressure pump P1 is turned off, and the circulation pump P2 is switched to the temperature control condition to be described later.

Meanwhile, the heat storage step for each unit generation is performed after the heat collecting step.

The heat storage step for each unit generation consists of a process of accumulating the heat collecting heat source together with the control of the circulation pump (P2) through the temperature control.

At this time, the temperature control process is to control the operation of the circulation pump (P2) by using a temperature difference, the temperature value and the collector temperature sensor detected from the unit generation lower temperature sensor (T2 ') of the heat storage tank 210 for each unit generation. By comparing the temperature value detected at (T1), if the temperature difference (T1-T2 ') is equal to or higher than the set value, the circulation pump (P2) is operated.

In addition, the heat collecting heat source heat storage process is a process for accumulating the heat collected from the solar heat collector 110 into the heat storage tank 210 for each unit generation included in each unit household management unit 200, and the heat storage tank for each unit household 210. When the difference (T1-T2 ') between the temperature value detected from the unit generation lower temperature sensor T2' and the temperature value measured by the collector temperature sensor T1 is greater than or equal to the set value, the first anisotropic valve 520 is opened. The heat storage is controlled.

Then, the heat medium is supplied to the heat storage tank 210 for each unit household by a constant flow rate by each of the constant flow valves 510 connected to the heat storage tank 210 for each unit household, and inside the heat storage tank 210 for each unit household. In the proper heat exchange occurs in the heat storage tank 210 for each unit generation, the water stored in the heat storage, it will be stored.

In this state, if the difference between the temperature value detected from the unit temperature lower temperature sensor T2 'and the temperature value measured by the collector temperature sensor T1 is maintained below a predetermined temperature, the first anisotropic valve 520 is opened. Close it.

Here, mutual control between the solar heat collecting unit 100 and the unit generation management unit 200 is mostly made through the main controller 320, and the control performed in each unit generation management unit 200 is performed by the unit generation controller 220. It is made through, but the unit generation-specific controller 220 is also set to be under the control of the main controller 320.

In addition, the reason for the reference based on the temperature value measured by the unit generation lower temperature sensor (T2 ') during the heat storage process as described above is to supply hot water differentially according to the house using a lot of hot water and the house using less by adjusting only the lower limit. This is to allow control.

Through such a step, when the heat storage tank 210 of each unit household of the unit household management unit 200 is thermally stored, hot water may be used, and the boiler 230 may be used to supplementally provide hot water according to conditions.

In the use of hot water for each unit household, if the temperature value detected from the unit temperature upper temperature sensor (T3 ') is above a predetermined temperature, the three-way valve 250 is opened in the direction of the hot water load, and accordingly, the heat storage tank for each unit household (210). ) Hot water is mixed with direct water in the mixing valve 244 is supplied as hot water while being maintained at a constant temperature.

At the same time, the hot water on the upper side of the heat storage tank 210 for each unit generation is drawn out so that the direct water flows into the heat storage tank 210 for each unit generation through the direct pipe 240 in the lower portion, in which case the unit through the diffuser as described above. By forming a temperature stratification in the heat storage tank 210 for each generation, it is possible to prevent a sudden temperature change and to increase the efficiency of using hot water.

If the temperature value detected from the unit generation upper temperature sensor (T3 ') when the hot water is used is less than a predetermined temperature and is not suitable for use as hot water, the three-way valve 250 opens toward the boiler 230, and thus, the unit generation. Water inside the star heat storage tank 210 is heated via the boiler 230 and then mixed in the mixing valve 244 is supplied to the appropriate hot water.

In this case as well, the direct water is supplied as much as the amount of water exiting the heat storage tank 210 for each unit generation. When supplying, the temperature stratification through the diffuser will be the same.

Through such a step, it is possible to automatically control the heat storage state of the hot water in the heat storage tank provided for each unit generation.

In addition, when overheating occurs, that is, when the temperature detected by the unit generation upper temperature sensor T3 'installed at the upper end of the heat storage tank 210 for each unit generation is higher than a specific value, the second anisotropic valve 261 is opened. Thus, overheating can be prevented by draining a part of the water and supplying direct water, which is cold water.

Of course, if the temperature detected by the unit generation upper temperature sensor T3 'is below a certain temperature, it is natural to close the second anisotropic valve 261 and perform the heat storage process again.

As described above, the present invention does not need to provide a separate cooling means because the system itself has an overheat protection function, that is, a cooling function, and thus, energy can be efficiently utilized.

100: solar collector 110: solar collector
130: heat medium tank 150: expansion tank
160: pressure sensor 200: unit generation management unit
210: heat storage tank by unit generation 220: controller by unit generation
230: boiler 240: water pipe
250: three-way valve 320: main controller
400: piping 410: first piping
420: second piping 510: constant flow valve
520: the first anisotropic valve

Claims (7)

In a solar hot water system equipped with a heat storage tank for each unit in a multi-family house,
A solar collector having a solar collector for collecting solar heat;
The heat storage tank for each unit generation receiving and receiving heat energy collected through the solar collector, the unit generation upper and lower temperature sensors respectively installed at the top and bottom of the heat storage tank for each unit generation, the boiler installed for each unit generation, the unit generation A unit generation management unit including a three-way valve installed to draw hot water of each heat storage tank in association with the boiler, and a unit-generation controller for controlling the opening degree of the three-way valve according to the temperature value detected by the unit temperature upper temperature sensor;
The detection temperature value of the lower unit temperature sensor and the detected temperature value of the collector temperature sensor are compared to determine whether to control the circulation pump according to the difference value, and installed in the machine room of the apartment house to control the controller for each unit generation. A main controller;
A first pipe constituting a closed circuit in which a heat medium circulates by connecting an outlet side and an inlet side of the solar collector, a heat collector temperature sensor installed at an outlet side of the first pipe, and branched in parallel from the first pipe to accumulate heat for each unit generation The second anisotropic valve connected to the heat exchanger in the tank, the first anisotropic valve respectively installed in the second pipe and controlled by a unit-specific controller, and the heat medium tank installed at the inlet side of the first pipe and supplementing the heat medium under the control of the main controller. And a circulating pump for refluxing the pressurized pump and the heat medium, and a pipe part installed at an inlet side of the first pipe and including a pressure sensor measuring the internal pressure of the heat medium and transmitting a signal to the main controller. Solar hot water system equipped with heat storage tank for each generation.
The method according to claim 1;
The solar hot water system having a heat storage tank for each unit generation of the multi-family housing, characterized in that the expansion tank is further provided as a buffer for buffering the internal pressure during the volume expansion of the heat medium at the inlet side of the first pipe constituting the pipe.
The method according to claim 1;
The inlet side of the first pipe constituting the pipe portion is characterized in that the drain is further configured to relief the end of the first pipe under the control of the main controller when the pressure value detected by the pressure sensor is more than the set value. Solar hot water system equipped with heat storage tank for each generation.
The method according to claim 1;
A solar hot water system having a heat storage tank for each unit generation of a multi-family house, characterized in that a diffuser is further installed at a lower end of the heat storage tank for each unit generation to induce temperature stratification by diffusing direct water flowing therein.
A method of controlling a solar hot water system provided with a heat storage tank for each unit generation according to claim 1;
A collecting step of collecting solar heat through the solar collector;
The heat collected in the collecting step is circulated to the heat storage tank for each unit generation, and the heat storage is performed. When the temperature difference is higher than the set value by comparing the temperature value detected from the lower unit temperature sensor with the temperature collector temperature sensor, the circulation pump is operated. Turn on the circulating pump when the temperature is below a certain temperature, and control the temperature difference. When the difference between the temperature value detected by the unit temperature lower temperature sensor and the temperature value detected by the collector temperature sensor is higher than a predetermined value, the first anisotropic valve is opened. And a heat storage step for each unit household for opening and controlling the heat storage by closing the first anisotropic valve when the temperature is lower than a predetermined temperature. The control method of the solar hot water system provided with the heat storage tank for each unit household of a multi-family house.
The method of claim 5, further comprising:
In the collecting step, if the measured value of the pressure sensor is less than the set pressure, the heat medium in the first pipe is insufficient. Therefore, the pressurized pump is operated, the circulation pump is operated at the same time, and the anisotropic valve is opened to maintain a predetermined amount of the heat medium stored in the heat medium tank. To supply;
When the pressure measured by the pressure sensor is higher than the set pressure, the anisotropic valve is closed, the pressurized pump is turned off, and the solar pump is provided with a heat storage tank for each generation of the unit house, characterized in that the control to switch to the circulation pump temperature control condition. Control method of hot water system.
The method of claim 5, further comprising:
In the heat storage step for each unit generation, the use of hot water is to open the three-way valve in the direction of the hot water load direction when the temperature value detected from the unit temperature upper temperature sensor is above a certain temperature to mix the hot water of the heat storage tank for each unit generation with the direct water in the mixing valve Use;
If the temperature value detected from the unit temperature upper temperature sensor is below a certain temperature and is not suitable for use as hot water, the three-way valve is opened in the direction of the boiler so that the water inside the heat storage tank for each unit generation is heated with a boiler and then mixed in the mixing valve. Control method of a solar hot water system equipped with a heat storage tank for each unit generation of a multi-family house, characterized in that the mixed use with direct water.

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