KR100758820B1 - Cooling and heating system using geothermy and solar energy and extra haeting source and operation control method thereof - Google Patents

Abstract

A hot water supply system and cooling and heating system using geothermal energy and solar energy as an extra heating source and an operation control method thereof are provided to control the expansion volume of heating medium by forming one extra tank. A hot water supply system and cooling and heating system using geothermal energy and solar energy as an extra heating source and an operation control method thereof comprise a solar energy system, a geothermal energy system, an extra heating source system, and a control device. The solar energy system is composed of the solar collectors(170), the heat storage tanks(130) including a heat exchanger heating the water using the solar energy collected from the solar collector, and a multi-function extra tanks(140) including an expansion tank function, to have an air layer considering the expansion volume of heating medium, to be attached to the heat storage tank, and to implement the recognition for flow rate and the injection of the extra water. The geothermal energy system is connected with the cooling and heating system installed at the indoor to position the heat exchanger heating the water using the geothermal energy supplied to the heating pump at the upper part of the heat storage tanks. The extra heating source system is connected to place a cooling and heating control valve(190) at the geothermal source system connected with the indoor cooling and heating system, and a hot water supply control valve(180) and the heating exchanger for the geothermal source system of the heat storage tanks. The control device controls the extra heating source system as a secondary extra hot water supply or the extra cooling and heating system to supplement the solar energy system and the geothermal energy system, to adjust the geothermal energy system as the extra hot water supply system to supplement the solar energy system, to manage the geothermal energy system as the indoor cooling and heating system, and to check the solar energy system as the hot water supply system.

Description

Hot water and heating and heating system using geothermal heat, solar heat and auxiliary heat source and operation control method {COOLING AND HEATING SYSTEM USING GEOTHERMY AND SOLAR ENERGY AND EXTRA HAETING SOURCE AND OPERATION CONTROL METHOD THEREOF}

1 is a schematic diagram of a hot water supply and heating and heating system using a geothermal-solar-secondary heat source according to an embodiment of the present invention.

Figure 2 is a schematic diagram of a solar system showing a detailed configuration of the multi-functional auxiliary tank of the system according to an embodiment of the present invention.

3 is a connection system diagram of an indoor heating and cooling device of a system according to an embodiment of the present invention.

4 is a flow chart of a hot water supply and cooling and heating system using a geothermal-solar-secondary heat source according to an embodiment of the present invention.

5 is a block diagram of a control device according to an embodiment of the present invention.

<Brief description of the major symbols in the drawings>

110: gas boiler 120: geothermal heat pump

130,310: heat storage tank 140,320: auxiliary tank

150: indoor 160: hot water heater

170,330: collector 180: hot water supply control valve

190,210: Heating and cooling control valve 220: Floor panel radiator

230: indoor air conditioner 240: ceiling panel radiator

410: setting unit 420: display unit

430: microcomputer module 440: measurement signal processing module

450: composite measurement module

The present invention relates to a technology for utilizing new and renewable energy sources, such as geothermal heat and solar heat, for hot water supply and cooling and heating. Specifically, combining individual systems in consideration of heat flow so as to reasonably use the clean heat source and auxiliary heat source. The present invention relates to a hot water supply and cooling system using a new geothermal-solar-auxiliary heat source, which is configured to efficiently control the entire system according to the climate and operating conditions, and a method of controlling the operation thereof.

In buildings or complexes, energy use flow has been directed to one-sided use of fossil energy or energy consumption types such as electricity and gas due to supply-oriented design and application. Emissions are a problem. Accordingly, in order to minimize the environmental load, it is required to develop technology that can minimize the impact on the natural system by using renewable energy reasonably according to the characteristics of the site and climate.

Therefore, there have been efforts to use a clean heat source or renewable energy sources such as geothermal and solar heat. However, in order to meet the hot water supply and cooling and heating demands required in environment-friendly buildings or complexes, it is important to secure a stable clean heat source, but most renewable energy sources have characteristics that vary depending on the climate and environment. However, in a system using such a clean heat source, it is difficult to secure economic feasibility as a single system using geothermal or solar heat. Accordingly, considering the long payback period, the design and application of a system that can reduce operation and maintenance costs This is important.

In the past, efforts have been made to use auxiliary heat sources by complementing geothermal or solar thermal systems. For example, Korean Patent Application No. 10-2003-0099488 (“Solar hot water supply and heating system in connection with household boiler”, Applicant: Korea Institute of Construction Technology) discloses a domestic boiler by supplementing the conventional solar system. A system used as a system has been proposed. As another example, the Republic of Korea Utility Model Application No. 20-2004-0023596 (“Geothermal heat exchanger type heat pump air-conditioning system having a secondary heat source supply means,” Utility Model Holder: Kwon, Young-Hyun) Registered publications complement the conventional geothermal system to separate boiler A system with added is proposed. This has the advantage that the efficiency of the hot water supply and heating system can be increased by adding a solar system or a geothermal system to a boiler using a gas installed in an existing home.

Furthermore, the combined efficiency of geothermal and solar systems could be expected. That is, in general, since geothermal sources have relatively stable underground temperature conditions annually, they can be used as four season heating and heating and hot water supply sources, and can be economically improved when combined with a solar hot water system for more efficient operation. It is expected. However, in the case of such a complex system, it is difficult to use it in a general household in consideration of the economics due to the enlargement of complex piping system. However, in recent years, the housing structure has been popularized in the form of multi-family housing such as townhouses or apartments rather than single-family homes. This type of housing has dozens of homes in one building, so if the initial costs are high but the maintenance costs are low, it may be more economical to have a larger system.

Therefore, in a system using both geothermal and solar heat, if a design technology that simplifies the complex system linked to the complex use of energy sources, a technology that improves maintainability due to the complexity of the system, and a technology that controls operation at an optimum state are secured, Will be advantageous. Furthermore, in the control of such complex systems, it would be more advantageous if the technology of combining and operating individual energy systems with reasonable operation and control was secured.

The present invention has been invented to solve the problems of the conventional system as described above, supplying hot water supply through a geothermal source heat pump and a solar heat collector connected to a common heat storage tank, using a geothermal source heat pump for cooling and heating, gas boiler The purpose of providing a complex heat source system using a clean heat source by providing a system for assisting hot water supply and cooling and heating through an auxiliary heat source such as.

A specific object of the present invention, the heating and cooling operation of the heat pump through a sensor for monitoring the operating state of the solar system and the power consumption of the geothermal heat pump through a temperature sensor installed in the middle of the vertically long heat storage tank It judges the condition and controls the hot water supply by controlling the heating of the heat storage tank, and judges the case that it is impossible to supply the hot water supply by solar heat and geothermal system at the same time through the heat storage tank temperature and the heat pump operation state, and switches the three-way valve connected to the hot water supply system And a geothermal-solar-auxiliary heat source hot water supply and cooling system configured to control an auxiliary heat source such as a gas boiler to assist cooling and heating, and an operation control method thereof.

Another specific object of the present invention is to determine the cooling and heating mode using the room temperature measured by the room temperature sensor and predetermined cooling and heating set temperature (Trc, Trh), according to the four-way electric control valve in the heating and cooling circulation system Method of controlling conduit system that can combine convection radiator, floor panel radiator and ceiling panel radiator in various systems by means of complex combination type and geothermal-solar-auxiliary heat source with hot water supply The present invention provides a system and a method of controlling the operation thereof.

The present geothermal-solar-assisted heat source hot water supply and heating / heating system, which is configured to achieve the above object, is a system for hot water hot water supply and room heating and cooling; There is a heat storage tank installed at the bottom, and a heat storage tank installed in the bottom to collect solar heat, and a heat exchanger that heats water using the solar heat collected from the heat collector, and an air layer that is attached to the heat storage tank and considers the amount of fruit expansion. A solar system including a multifunctional auxiliary tank having an expansion tank function; A geothermal source heat pump configured to heat exchange using geothermal heat and a heat exchanger for warming water using geothermal heat supplied from the heat pump, which is connected to an air-conditioning unit installed above the heat storage tank and installed in the room; An auxiliary heat source system connected to the geothermal source system heat exchanger of the heat storage tank via a hot water supply control valve, and connected to a part of the geothermal source system connected to the indoor air conditioner via a heating and cooling control valve; And controlling the solar system as a hot water supply system, controlling the geothermal system as a system for indoor cooling and heating, controlling the geothermal system as an auxiliary hot water system to assist the solar system, and assisting the solar system and the geothermal system. And a control device for controlling the auxiliary heat source system as a secondary auxiliary hot water supply system and an auxiliary air conditioning system.

Preferably, the auxiliary heat source system is a gas boiler system.

Preferably, the auxiliary tank is connected to the heat collecting system of the solar system and the heat exchanger at the bottom of the heat storage tank to form a closed system, and a supplemental water inlet and a fruit inlet pipe and an opening / closing valve of the collecting system are installed at an upper portion of the auxiliary tank. The supplementary water outlet, the fruit supply pipe of the heat collecting system, the circulation pump and the on-off valve are installed, and the external liquid surface is provided with a transparent liquid pour system to detect the supplementary water flow rate, and has an integrated structure attached to the heat storage tank. The fruit occupies the inner portion of the silver and the air layer considering the amount of fruit expansion in the upper part may be configured to have an expansion tank function.

In a preferred heating and cooling operation, it is installed in the room includes a temperature sensor for measuring the temperature (Tr) of the room, the air-conditioning device (220, 230, 240) is a convection radiator 230 and the bottom panel radiator 220 And the at least one of the ceiling panel 240, and the control device compares the measured room temperature Tr with a preset room air conditioning set temperature (Trc, Trh) to determine a cooling mode and a heating mode. Outputs and controls a signal controlling a 4-way electric control valve connected to a cooling / heating circulation system according to the discrimination criteria, but according to the cooling and heating operation mode, the convection radiator 230 and the bottom panel radiator 220 and the ceiling panel. The radiator 240 may be controlled to switch the four-way electric control valve to be connected alone or in combination.

In a preferred heating operation, it comprises a temperature sensor for measuring the temperature of a particular part of the geothermal system, wherein the control device compares the measured temperature with a preset temperature Ts and heats the geothermal system according to the comparison result. It can be controlled to switch to the heating by the auxiliary heat source system.

More specifically, the temperature sensor for measuring the temperature of a specific portion of the geothermal system is a temperature sensor for measuring the temperature (Ti, To) of the circulating water before and after the underground heat exchange in the underground heat exchanger circulation system of the geothermal system, The preset temperature Ts corresponds to the temperature difference Ti-To of the heat exchange circulation water, and when the temperature difference Ti-To of the heat exchange circulation water is less than or equal to the set temperature Ts, the control device performs heating operation of the geothermal system. It can be switched to the heating by the auxiliary heat source system.

In a preferred hot water supply operation, a temperature sensor for measuring the temperature in the heat storage tank and a power monitoring and measurement sensor installed in the compressor power system of the heat pump, the control device compares the measured heat storage tank temperature with a preset temperature According to the comparison result, the hot water supply by the solar system is controlled to be switched to the hot water supply by the geothermal system, and further, the control device compares the measured power with a preset power and according to the comparison result, the auxiliary heat source. The system may be controlled to switch to hot water supply by the system, and when the temperature of the heat storage tank rises above a set value, the hot water supply operation by the geothermal source system or the auxiliary heat source system may be stopped and the operation may be switched to the solar hot water operation mode.

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

1 is a view showing the configuration and operation of an embodiment of the present invention, the solar system and geothermal source system and auxiliary heat source system (eg, gas boiler system) for supplying hot water to the hot water heater 160 and cooling the room 150 It may be configured to include. The solar system collects solar heat in the collector 170, stores the heat in the heat storage tank 130, and mediates the multifunctional auxiliary tank 140 to the heat collecting system. The geothermal heat system includes a geothermal heat pump capable of performing cooling and cooling of the room using the evaporator (or condensate) of the heat pump and assisting some hot water supply. The gas boiler 110 supplies heating water and hot water. The heat storage tank 130 is a place for warming water for hot water supply, having a coil-type heat exchanger at the upper and lower parts of the inside, and a geothermal source hot water supply system connected to the upper part and a solar heat collecting system connected to the lower part. A piping system for selectively switching the cooling and heating circulation system through the four-way electric control valves connects these systems, and the interior 150 has a floor panel radiator 220, a ceiling panel radiator 240, and an indoor air conditioner 230 as a radiator. A convection air conditioner can be installed.

Hereinafter will be described in more detail for each system as follows.

Solar system

Referring to Figure 2, in the solar system, the fruit outlet pipe is connected to the upper portion of the collector 330 is installed on the roof, wall, flat of the building, the inlet pipe of the fruit is connected to the collector 330, the collector The inlet and outlet pipes are connected to the lower coil type heat exchanger inlet and outlet of the heat storage tank 310, and the circulation pump and the auxiliary tank 320, a pressure gauge, a temperature sensor, etc., are connected to a heat pipe connecting the heat collector 330 and the heat storage tank 310. do. This solar system is used as a hot water supply system for hot water supply.

On the other hand, the auxiliary tank 320, which is mediated by the solar heat collecting system, is provided with a supplemental water inlet at an upper portion thereof, a fruit inlet pipe of the collecting system is connected, and an opening and closing valve is installed near the surface of the auxiliary tank at the inlet pipe, A water supply pipe, a water supply pipe of a water outlet, a collecting system, a circulation pump, and an opening / closing valve are installed. It is preferable to provide a transparent liquid column on the outer surface of the auxiliary tank 320 to enable the replenishment water flow rate to be detected. The auxiliary tank 320 has an integrated structure attached to the heat storage tank 310, the inner space has an inner portion of the fruit occupies the inner portion and the upper air layer in consideration of the amount of fruit expansion has an expansion tank function.

The inlet and outlet pipes of the auxiliary tank 320 are positioned below the surface of the fruit so that bubbles are not generated during the fruit circulation, and the two open / close valves installed at the inlet and outlet are supplemented with supplemental water and the amount of fruit in the auxiliary tank, and system maintenance. It serves as a lock at the time.

Since the inlet and outlet pipes in the auxiliary tank 320 is located below the fruit surface and the entire system constitutes a closed system, even if the operation of the circulation pump is stopped, the fruit of the upper collecting system has a compression ratio of the air layer more than the auxiliary tank 320. Does not flow down The volume of the piping air layer of the auxiliary tank 320 is determined in consideration of the amount of expansion of the fruit and the degree of compression of air during operation of the solar heat collecting system.

The control of the solar system uses the existing temperature control method to start the operation when the temperature is higher than the set temperature by comparing the temperature of the top of the collector 330 with the temperature of the heat storage tank 310, in addition to the solar system operating conditions and heat storage tank 310 When the set temperature is satisfied, the hot water supply operation of the geothermal source heat pump and the gas boiler hot water operation can be controlled to interlock.

Geothermal source  system

Geothermal source system, that is, geothermal source heat pump, is a system for producing hot water and heating and cooling water for hot water supply and air conditioning. Geothermal source heat pump 120 is connected to the evaporator (or condensation unit) of the heat pump is connected to the heat exchanger installed in the ground, circulating water for geothermal exchange flows through the pipe, the condensation unit (or evaporator) of the heat pump Cooling and heating device (220, 230, 240) of the room 150 is connected to the pipe through the pipe, the cooling and heating circulation water flows through the piping system, to operate the heat pump cycle to supply the combined heating and cooling water production and hot water supply It is composed.

In addition, by connecting the hot water supply system of the geothermal source heat pump 120 to the upper heat exchanger 130, 310 has a structure to share the heat storage tank (130, 310) with the solar system, installed in the center of the heat storage tank (130, 310) The temperature sensor and geothermal source heat pump 120 is combined with a sensor for monitoring the cooling and heating and operation of the power consumption state.

On the other hand, when the heat storage tank is below a certain temperature and the hot water supply is insufficient, the operation unit for comparing that the temperature (Tc) of the hot water storage heat storage tank is less than the set temperature (Ts), and whether the geothermal source heat pump 120 is operating in the resting period In order to determine the operation of receiving power from the power monitoring and measurement sensor installed in the compressor power system of the heat pump to determine whether the operation, the monitoring information of the operation unit receives the monitoring information of the heat pump of the geothermal source heat pump in the case of cooling and heating of the heat pump Outputs a signal to control the control, and controls the operation of transmitting the information to the hot water supply control module of the gas boiler (110).

In addition, the heat pump evaporator (or the heat pump evaporation unit configured to switch the piping system where the heating water circulates to the auxiliary heat source when the ground temperature is not suitable for the heating operation of the heat pump due to the rapid increase in the heating load or the long-term operation of the geothermal heat pump). Temperature sensor for measuring the temperature of the condensing unit) and the upper limit operating temperature setting unit, and measuring the temperature (Ti, To) of the circulating water before and after underground heat exchange in the underground heat exchanger circulation system of the geothermal heat pump And a calculation unit for determining when the temperature difference (Ti-To) setting unit 410 of the heat exchange circulation water and the temperature difference (Ti-To) of the heat exchange circulation water are not effective for the operation of the heat pump when the temperature difference (Ti-To) is less than or equal to the set temperature (Ts). Combining a control device built-in, the operation of switching the heating system of the geothermal source heat pump 120 to the heating system of the auxiliary heat source heating system, that is, the gas boiler 110 according to the switching signal of the control device Controls.

Heat storage tank

The heat storage tanks 130 and 310 preferably have a structure in which the height is three times or more than the width in order to secure heat storage and heat radiation efficiency due to the thermal layer effect. The heat storage tanks 130 and 310 have a structure in which water supply flows into the lower portion and hot water flows out of the upper portion. The shape of the top and bottom of the heat storage tank (130, 310) is preferably in the inlet and outlet to the shape of the arc to the top to minimize the disturbance in the heat storage tank during inflow and outflow of water supply or hot water supply. Also provided with a safety valve to discharge steam or hot water to the outside at the time of overpressure on the top or side, the multi-functional auxiliary tank is attached to the side of the heat storage tank (130, 310).

In addition, the heat storage tank (130, 310) is mounted on top of the coil type heat exchanger connected to the hot water supply system of the geothermal source heat pump, and the bottom of the heat storage tank (130, 310) by mounting the coil heat exchanger connected to the solar system and the solar heat system and Geothermal source heat pump has a shared configuration.

On the other hand, when the temperature obtained from the temperature sensor installed in the heat storage tank is less than the set value according to the operating state of the heat pump, by operating the hot water supply system of the heat pump only in the heat pump rest period to heat the heat storage tank, heat pump operation Control the operation so that it does not work when it is in operation or during solar system operation.

Relationship, Switching method

The plumbing system that connects each system is largely divided into a hot water supply system, an air conditioning system, and a heat collecting system. The hot water supply system is provided with a coil heat exchanger installed at the bottom of the heat storage tank, a water supply pipe at the bottom, and a hot water supply pipe at the top to supply hot water by solar heat first.

In case of lack of hot water supply due to solar heat, the heat pump hot water supply system is used first. The solar hot water supply system is connected to the lower heat exchanger of the heat storage tank, the heat pump hot water supply system is connected to the upper heat exchanger of the heat storage tank, and the heat pump hot water supply system is connected to the corresponding system via a three-way electric control valve to switch the operation according to the control signal. .

When hot water supply by both solar and geothermal source heat pumps is impossible, the hot water supply is supplied secondarily by an auxiliary heat source such as a gas boiler, and the hot water supply system of the auxiliary heat source is connected to the control signal through a three-way electric control valve at the end of the corresponding system. Switch operation accordingly.

In particular, when the hot water supply shortage due to the solar system and the geothermal source heat pump is used simultaneously, the heat storage tank temperature and the geothermal source heat pump operation status monitoring information are simultaneously used. It is preferable to carry out. On the other hand, when the heat storage tank temperature is lower than a predetermined temperature despite the operation of the heat pump outputs a control signal for hot water operation of the gas boiler.

On the other hand, the cooling and heating circulation system is composed of the condensation unit (or the evaporator unit) of the geothermal heat pump, the indoor air-conditioning radiator, and the four-way electric control valve.In addition, the auxiliary heating in case of insufficient heating considering the heating load is larger than the cooling load. The gas boiler heating circulation system is connected to the heat pump cooling and heating circulation system via a three-way electric control valve.

The heating and cooling system connected to the heat pump has a four-way electric control valve connected to the supply main pipe, and the remaining three branch pipes are connected to the indoor convection radiator, the bottom panel radiator, and the ceiling panel radiator, respectively.

The air-conditioning system may be composed of a piping system for switching individually or combined by switching in accordance with the combination of the radiator, specifically connecting the individual radiators alone, all three radiators, or a combination of two together How is it possible?

The combination scenario for switching the cooling and heating system by the four-way electric control valve is pre-built in the control device as a program, and selectively switches the heating and heating system by using the adjustment terminal.

Controller

As described above, the system according to the present invention includes a geothermal source system, a solar thermal system and an auxiliary heat source, preferably a gas boiler system. Furthermore, the control device 410, 420, 430, 440, 450 as shown in FIG. The control device controls the operation of the heat source system and can start or stop the operation of each heat source system based on the information by the sensors installed in the element elements. The heat source systems are connected to the hot water supply piping system and the heating / cooling piping system, and the hot water supply system includes the heat storage tank 130 to the hot water heater 160. In the air-conditioning system, the radiator devices 220, 230, and 240 for cooling and cooling indoors are connected to each other through a four-way electric control valve. In the hot water supply system, a solar thermal system may be used as a primary heat source, a second geothermal source system may be used, and a third gas boiler system may be used. Geothermal heat system is used for the heating and cooling system, and the gas boiler system may be used as a secondary.

This control method is illustrated as a specific flowchart in FIG. 4.

When controlling the indoor air conditioning system, the temperature (Tr) of the room is measured by the temperature sensor installed in the indoor space, and the cooling and heating modes are determined by comparing with the indoor air conditioning set temperature (Trc, Trh) set in the controller. Therefore, the 4-way electric control valve connected to the heating / cooling circulation system is controlled. At this time, the four-way electric control valve switching method so as to connect the convection radiator such as the indoor air conditioner 230 and the bottom panel radiator 220 or the ceiling panel radiator 240 alone according to the cooling and heating operation mode and all of these radiators Multiple combinations can be selected and the system can be controlled.

In the control of auxiliary heating system, for example, a heat set to switch the piping system in which the heating water circulates to the auxiliary heat source when the ground temperature is not suitable for the heating operation of the heat pump due to a sudden increase in the heating load or the long term operation of the geothermal heat pump. It may include a temperature sensor for measuring the temperature of the pump evaporator (or condensate combined). According to a preferred embodiment, the temperature sensor may include a temperature sensor for measuring the temperature (Ti, To) of the circulating water before and after the underground heat exchange in the underground heat exchanger circulation system of the geothermal source heat pump. The temperature difference (Ti-To) of the heat exchange circulation water is calculated according to the measured temperature, and it is determined whether the temperature difference (Ti-To) of the heat exchange circulation water is less than the set temperature (Ts) or not effective for the operation of the heat pump. Discriminate and control the switching from the geothermal source system operation to the operation of the gas boiler system as an auxiliary heat source.

When controlling the auxiliary hot water supply system, for example, by using the existing method of firstly discriminating when the temperature Tc of the heat storage tank is measured below the set value Ts because the climatic condition is not suitable for solar heat collection, the geothermal source heat pump ( In order to determine whether the vehicle is operating in the idle state of 120, it is determined whether the operation is performed by receiving the output from the power monitoring and measurement sensor installed in the compressor power system of the heat pump. Here, the temperature of storage center (Tc) is the heat storage tank center temperature, and the setting temperature of storage (Ts) is the preset temperature of the heat storage tank.

The control device outputs the hot water supply system operation signal to the cooling and heating operation stop of the geothermal source heat pump using the determined information, and transmits the hot water supply operation signal by the gas boiler during the cooling and heating operation of the geothermal source heat pump.

For example, when the temperature of the heat storage tank rises to a set value, the hot water supply operation by the geothermal source heat pump and the gas boiler may be stopped, and the solar heat supply operation mode may be switched to the solar heat supply operation mode.

In the above, the present invention has been described with reference to specific embodiments, but various modifications and variations can be readily devised by those skilled in the art in view of the disclosed contents and drawings. Therefore, it is pointed out that the scope of the present invention should be interpreted not by the description but by the claims.

As described above, according to the present invention, it is possible to contribute to energy and greenhouse gas reduction by utilizing geothermal and solar heat in buildings or complexes, and by combining geothermal-solar-gas boilers, economical in terms of operation and maintenance of the system. To improve the effect;

It is possible to grasp and control the amount of fruit in one auxiliary tank, implement the function of substituting the expansion tank, and attach to the heat storage tank to reduce the pipe connection area to reduce the required cost and improve the maintainability;

A system for supplying hot water by sharing a heat storage tank with a solar heat and a geothermal system, and maximizing utilization of a clean heat source in a hot water supply by using information about a temperature of a heat storage tank and a cooling / heating operation state of a heat pump;

Considering the fact that various indoor units are being introduced, four-way electric control valves can be introduced to selectively combine cooling and heating systems, which can achieve the effect of improving indoor comfort by combining radiation and convective heat transfer effects. have.

In addition, the control method proposed in the present invention and the control device incorporating the same have various applications, and thus the invention is expected to be greatly used in the industry.

Claims (12)

A system for hot water hot water and indoor heating and cooling; Collectors 170 and 330 for collecting solar heat, heat exchangers for heating water using solar heat collected from the collectors 170 and 330, and heat storage tanks 130 and 310 installed in the lower part, and supplementary water injection and supplementary water flow rate are possible. And a solar system including a multifunctional auxiliary tank (140, 320) attached to the heat storage tank (130, 310) and having an expansion tank function due to an air layer considering the amount of fruit expansion; Geothermal source heat pump 120 and heat exchanger for heating water using geothermal heat supplied from the heat pump 120 is installed on the heat storage tank (130, 310), and installed in the room A geothermal system connected to the heating and cooling devices 220, 230, and 240; An air conditioning control valve is connected to the geothermal heat system heat exchanger of the heat storage tank (130, 310) and the hot water control valve (180) and connected to the geothermal heat system part of the indoor air conditioning system (220, 230, 240). An auxiliary heat source system connected through the 190; And Control the solar system as a hot water supply system, control the geothermal system as a system for indoor heating and cooling, control the geothermal system as an auxiliary hot water system to assist the solar system, and assist the solar system and the geothermal system. A control device for controlling the auxiliary heat source system as a secondary auxiliary hot water supply and auxiliary air conditioning system Hot water supply and cooling and heating system using a geothermal-solar-secondary heat source comprising a. The hot water supply and air conditioning system according to claim 1, wherein the auxiliary heat source system is a gas boiler system. According to claim 1, wherein the auxiliary tanks (140, 320) is connected to a heat collecting system of the solar system and the heat exchanger of the bottom of the heat storage tank (130, 310) to form a closed system, the top of the supplemental water inlet and the heat collecting A fruit inlet pipe and a shut-off valve of the system are installed, and a replenishment water outlet, a fruit supply pipe, a circulation pump, and a shut-off valve of the collection system are installed at the lower part thereof, and a transparent liquid main system is provided on the outer surface to detect the flow of the replenishment water. , Has a unitary structure attached to the heat storage tank (130, 310), geothermal heat characterized in that the inner space is occupied by the fruit in the lower portion and the upper air layer in consideration of the amount of expansion of the fruit is configured to have an expansion tank function Hot water supply and heating system using solar-assisted heat source. According to claim 1, It is installed in the room and includes a temperature sensor for measuring the temperature (Tr) of the room, The air-conditioning device (220, 230, 240) is a convection radiator 230 and the bottom panel radiator 220 And the at least one of the ceiling panel 240, and the control device compares the measured room temperature Tr with a preset room air conditioning set temperature (Trc, Trh) to determine a cooling mode and a heating mode. Outputs and controls a signal controlling the four-way electric control valve connected to the cooling and heating circulation system according to the discrimination criteria, but according to the cooling and heating operation mode, the convection radiator 230 and the bottom panel radiator 220 and the ceiling panel radiator Geothermal-solar-secondary heat source hot water supply and heating and heating system, characterized in that for controlling the switching to the four-way electric control valve so as to be connected alone or in combination. The method of claim 1, further comprising a temperature sensor for measuring the temperature of a particular portion of the geothermal system, wherein the control device compares the measured temperature with a preset temperature Ts and heats the geothermal system according to the comparison result. Geothermal-solar-secondary heat source hot water supply and heating and heating system characterized in that the control to switch to the heating by the auxiliary heat source system. The temperature sensor for measuring the temperature of a specific portion of the geothermal system is a temperature sensor for measuring the temperature (Ti, To) of the circulating water before and after the underground heat exchange in the underground heat exchanger circulation system of the geothermal system. The preset temperature Ts corresponds to a temperature difference Ti-To of the heat exchange circulation water, and when the temperature difference Ti-To of the heat exchange circulation water is equal to or less than a set temperature Ts, the control device heats the geothermal system. Geothermal-solar-secondary heat source hot water supply and heating and heating system, characterized in that the operation is switched to the heating by the auxiliary heat source system. 2. The apparatus of claim 1, further comprising a temperature sensor for measuring the temperature in the heat storage tank and a power monitoring and measurement sensor installed in the compressor power system of the heat pump, wherein the control device compares the measured heat storage tank temperature with a preset temperature. According to the comparison result, the hot water supply by the solar system is controlled to be switched to the hot water supply by the geothermal system, and further, the control device compares the measured power with a preset power and according to the comparison result, the auxiliary heat source system. It is controlled to switch to the hot water supply by, and geothermal heat characterized in that when the temperature of the heat storage tank rises above the set value, the hot water operation by the geothermal source system or the auxiliary heat source system is stopped to switch to the solar hot water operation mode. Solar-assisted heat source hot water supply and air conditioning system. As a system control method for hot water hot water and indoor heating and cooling, Collectors 170 and 330 for collecting solar heat, heat exchangers for heating water using solar heat collected from the collectors 170 and 330, and heat storage tanks 130 and 310 installed in the lower part, and supplementary water injection and supplementary water flow rate are possible. And a solar system including a multifunctional auxiliary tank (140, 320) attached to the heat storage tank (130, 310) and having an expansion tank function due to an air layer considering the amount of fruit expansion; Geothermal source heat pump 120 and heat exchanger for heating water using geothermal heat supplied from the heat pump 120 is installed on the heat storage tank (130, 310), and installed in the room Geothermal system connected to the heating and cooling unit (220, 230, 240); An air conditioning control valve is connected to the geothermal heat system heat exchanger of the heat storage tank (130, 310) and the hot water control valve (180) and connected to the geothermal heat system part of the indoor air conditioning system (220, 230, 240). An auxiliary heat source system connected through the 190; And In the method of controlling a hot water supply and heating and cooling system comprising a control device, Controlling the solar system as a hot water system, The geothermal system is controlled by a system for indoor cooling and heating, Controlling the geothermal system as an auxiliary hot water system to assist the solar system, Controlling the auxiliary heat source system as a secondary auxiliary hot water supply and auxiliary air conditioning system to assist the solar system and the geothermal system; Hot water and heating and heating system operation control method using a geothermal-solar-secondary heat source. According to claim 8, It is installed in the room and includes a temperature sensor for measuring the temperature (Tr) of the room, The air-conditioning device (220, 230, 240) is a convection radiator 230 and the bottom panel radiator 220 And the at least one of the ceiling panel 240, and the control device compares the measured room temperature Tr with a preset indoor air conditioning set temperature (Trc, Trh) to determine a cooling mode and a heating mode. Outputs and controls a signal controlling a four-way electric control valve connected to a cooling / heating circulation system according to a discrimination criterion, wherein the convective radiator 230 and the bottom panel radiator 220 and the ceiling panel are controlled according to a cooling and heating operation mode. Method for controlling the operation of the geothermal-solar-secondary heat source hot water supply and heating and heating system, characterized in that for controlling the switching to the four-way electric control valve to be connected to the radiator 240 alone or in combination. 9. The system of claim 8, comprising a temperature sensor for measuring the temperature of a particular portion of the geothermal system, wherein the control device compares the measured temperature with a preset temperature Ts and heats the geothermal system according to the comparison result. Controlling operation of the geothermal-solar-secondary heat source hot water supply and heating and heating system, characterized in that the control to switch to the heating by the auxiliary heat source system. The temperature sensor for measuring the temperature of a specific portion of the geothermal system is a temperature sensor for measuring the temperature (Ti, To) of the circulating water before and after the underground heat exchange in the underground heat exchanger circulation system of the geothermal system. The preset temperature Ts corresponds to a temperature difference Ti-To of the heat exchange circulation water, and when the temperature difference Ti-To of the heat exchange circulation water is equal to or less than a set temperature Ts, the control device heats the geothermal system. The operation control method of the geothermal-solar-secondary heat source hot water supply and heating and heating system, characterized in that the operation is switched to the heating by the auxiliary heat source system. 9. The apparatus of claim 8, further comprising a temperature sensor for measuring the temperature in the heat storage tank and a power monitoring and measurement sensor installed in the compressor power system of the heat pump, wherein the control device compares the measured heat storage tank temperature with a preset temperature. According to the comparison result, the hot water supply by the solar system is controlled to be switched to the hot water supply by the geothermal system, and further, the control device compares the measured power with a preset power and according to the comparison result, the auxiliary heat source system. It is controlled to switch to the hot water supply by, and geothermal heat characterized in that when the temperature of the heat storage tank rises above the set value, the hot water operation by the geothermal source system or the auxiliary heat source system is stopped to switch to the solar hot water operation mode. Operation Control Method of Solar-Auxiliary Heat Source Hot Water Heating System .

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