KR20210075805A - Complex heat source heatpump system and control method using air heat source and various geothermal or hydrothermal sources with heat exchange-switching-four way valves adapting to enthalpy of outside air and cooling-heating load - Google Patents

Abstract

The present invention relates to a general air heat source and geothermal heat source heat pump, which comprises a compressor, a four-way valve for switching cooling and heating, a first heat exchanger, an expansion valve, and a second heat exchanger. Therefore, the prevent invention reduces an installation capacity of a heat pump system to significantly reduce construction cost.

Description

The complex heat source heatpump system and control method using an air heat source and various geothermal or water heat sources as an air heat source and various types of geothermal or water heat sources as a quadrilateral for switching a heat exchanger that conforms to the outdoor air enthalpy and heating/cooling load {Complex heat source heatpump system and control method using air heat source and various geothermal or hydrothermal sources with heat exchange-switching-four way valves adapting to enthalpy of outside air and cooling-heating load}

The air heat source heat pump system, which uses only air as a heat source, is inexpensive, easy to install, and can be installed in a short period of time. In particular, as a measure to solve the problem of insufficient heat absorption due to a decrease in heat transfer area due to frost caused by frost occurring in a heat exchanger in winter, an unreasonable system operation such as installing an electric heater at the bottom of the heat exchanger to supplement defrost and heat absorption However, in a heat pump system that uses a water heat source such as a geothermal heat source or groundwater seawater, heat dissipation and heat absorption are stable by maintaining a constant temperature throughout the year, so the energy use efficiency is high, but the construction cost is high, the construction is complicated, and the construction area is large. As it requires a lot of cooperation with construction companies of other types of construction, a new heat pump system and control method that can efficiently utilize air heat sources and various types of geothermal or water heat sources according to the outside air temperature, humidity, enthalpy, heating and cooling load, and usage conditions is to present

In a heating/cooling system using a heat pump, the energy efficiency rises or falls depending on the temperature of the air, underground, or water source, so it is necessary to keep the pressure and temperature of the refrigerant, which is the heat exchange medium in the heat pump, constant throughout the year within an appropriate range. Do.

In the case of a heat source heat pump system, the pressure and temperature change of the refrigerant also change due to the change in enthalpy according to the temperature and humidity of the air in summer or winter, causing damage to the compressor or disruption to the operation, such as the system being stopped. Since the system performs heat dissipation and heat absorption by enthalpy maintained constant throughout the year, stable system operation is possible, but securing the construction site required for installation and construction of the underground heat exchanger to secure the heat source of the heat pump system and burden of excessive construction costs And it is required to solve various problems due to long-term construction or to take measures for system control methods.

The air heat source heat pump system is maintained due to a decrease in energy efficiency as well as a disruption in cooling and heating supply due to the compressor operation being stopped or damaged due to excessively rising condensing pressure in the summer, and the operation stop due to frost caused by frost occurring on the heat exchanger in the winter. Unreasonable factors such as increase in management cost and energy cost occur, and in geothermal or water heat source heat pump systems, the construction cost for securing a site for supplying a geothermal heat exchanger or water heat source and installing pipelines and multiple drilling holes is excessive, and the construction period is prolonged. It is necessary to resolve civil complaints caused by noise, vibration, dust, and runoff.

In general, an air heat source heat pump system uses a fan that consumes low power energy for heat dissipation and heat absorption, but a geothermal or water heat source heat pump system uses pumps that consume high power for heat dissipation and heat absorption. Since a relatively large amount of energy is consumed, it is disadvantageous in terms of energy efficiency. Therefore, it is necessary to efficiently operate or control an accessory facility that can maximize the energy efficiency of the heat pump system.

An object of the present invention is to improve and provide problems, advantages and disadvantages that occur during operation and construction in general air heat source and geothermal heat source or water heat source heat pump systems by mutually complementing them.

As a means according to an embodiment of the present invention for solving the above problems

When cooling in summer, it uses a special structure for switching between heating and cooling, and switches the flow direction of the high-temperature and high-pressure gas refrigerant compressed and discharged from the compressor to flow in the opposite direction to that of heating in winter to produce cold water or cold air indoors. a third heat exchanger or a fourth heat exchanger serving as an evaporator for

a suction pipe for transferring the low-temperature and low-pressure gas refrigerant generated in the process of producing cold water or cold air in the third or fourth heat exchanger serving as the evaporator to the compressor;

a compressor for compressing the low-temperature and low-pressure gas refrigerant transferred to the compressor through the suction pipe into a high-temperature and high-pressure gas refrigerant to facilitate liquefaction in the first heat exchanger and the second heat exchanger serving as a condenser;

a discharge pipe for transferring the gas refrigerant compressed at high temperature and high pressure using the compressor to a first heat exchanger and a second heat exchanger serving as a condenser;

a first heat exchanger and a second heat exchanger serving as a condenser to liquefy the high-temperature and high-pressure gas refrigerant transferred through the discharge pipe by heat radiation through heat exchange with an air heat source, a geothermal heat source, or a water heat source to make a high-temperature and high-pressure liquid refrigerant;

A high-pressure liquid pipe for transferring the liquefied high-temperature and high-pressure liquid refrigerant to the receiver through the first and second heat exchangers serving as the condenser

At the outlet of the high-pressure liquid pipe, a receiver for storing the refrigerant transferred to always supply liquid refrigerant to the supercooling heat exchanger

The high-temperature and high-pressure liquid refrigerant stored in the receiver and transferred until the time of supercooling heat exchange minimizes the amount of fresh gas generated in the throttling expansion process at the expansion valve or prevents overheating of the compressor, thereby increasing the performance coefficient and preventing damage to the compressor. stage dilatation and anisotropy;

a suction pipe for transferring the refrigerant in the wet vapor state that is introduced through the anisotropic side and the expansion valve of the supercooled heat exchanger and evaporated or passed through the supercooled heat exchanger to the compressor for suction;

an expansion valve for easily vaporizing the supercooled high-pressure liquid refrigerant supercooled by the supercooled heat exchanger and the supercooled heat exchanger expansion valve into a low-temperature and low-pressure liquid refrigerant in a third or fourth heat exchanger serving as an evaporator through a throttling expansion process;

a low-pressure liquid pipe for transferring the low-temperature and low-pressure liquid refrigerant throttled and expanded in the expansion valve to a third heat exchanger or a fourth heat exchanger serving as an evaporator;

a heat pump system having a third heat exchanger or a fourth heat exchanger serving as an evaporator to vaporize the low-temperature and low-pressure liquid refrigerant transferred through the low-pressure liquid pipe to produce cold water or cold wind;

When heating in winter, it is used to switch between all four sides of the heating/cooling switch having a special structure, and the flow direction of high-temperature and high-pressure gas refrigerant compressed and discharged from the compressor is switched and controlled to flow in the opposite direction to that during cooling in summer to produce hot water or hot air. In order to supply a heat source to the third or fourth heat exchanger serving as a condenser, the first evaporator serves as an evaporator that vaporizes a low-temperature and low-pressure liquid refrigerant into a gaseous refrigerant by endothermic action through heat exchange with an air heat source, a geothermal heat source, or a water heat source a heat exchanger and a second heat exchanger;

a suction pipe for transferring the low-temperature and low-pressure gas refrigerant generated in the first and second heat exchangers serving as the evaporator to the compressor;

a compressor for compressing the low-temperature and low-pressure gaseous refrigerant transferred to the compressor through the suction pipe into a high-pressure gaseous refrigerant to facilitate liquefaction in a third or fourth heat exchanger;

a high-pressure pipe for transferring the gas refrigerant compressed at high temperature and high pressure using the compressor to a third heat exchanger or a fourth heat exchanger serving as a condenser;

a third or fourth heat exchanger serving as a condenser for cooling the high-temperature and high-pressure gas refrigerant transferred through the high-pressure pipe through heat exchange with hot water or hot air to liquefy it into a high-temperature and high-pressure liquid refrigerant;

A high-pressure liquid pipe for transferring the liquefied high-temperature and high-pressure liquid refrigerant to the receiver through the third and fourth heat exchangers serving as the condenser

At the outlet of the high-pressure liquid pipe, a receiver for storing the refrigerant transferred to always supply liquid refrigerant to the supercooling heat exchanger

The high-temperature and high-pressure liquid refrigerant stored in the receiver and transferred until the time of supercooling heat exchange minimizes the amount of fresh gas generated in the throttling expansion process at the expansion valve or prevents overheating of the compressor, thereby increasing the performance coefficient and preventing damage to the compressor. stage dilatation and anisotropy;

a suction pipe for transferring the refrigerant in the wet vapor state that is introduced through the anisotropic side and the expansion valve of the supercooled heat exchanger and evaporated or passed through the supercooled heat exchanger to the compressor for suction;

an expansion valve for easily vaporizing the supercooled high-pressure liquid refrigerant supercooled by the supercooled heat exchanger and the supercooled heat exchanger expansion valve into a low-temperature and low-pressure liquid refrigerant in the first or second heat exchanger serving as an evaporator through a throttling expansion process;

a low-pressure liquid pipe for transferring the low-temperature and low-pressure liquid refrigerant throttled and expanded in the expansion valve to a first heat exchanger and a second heat exchanger serving as an evaporator;

In a heat pump system having a first heat exchanger and a second heat exchanger serving as an evaporator for vaporizing the low-temperature and low-pressure liquid refrigerant transferred through the low-pressure liquid pipe into a low-temperature and low-pressure gas refrigerant through heat exchange with an air heat source, a geothermal heat source, or a water heat source ;

The load required for cooling in the summer is generally 2.5 to 3.0 times greater than the load required for heating in the winter, but the capacity of the heat pump and circulation pump is selected and constructed based on the maximum load for cooling in the summer;

The capacity of the geothermal or water heat exchanger must also have the maximum supply capacity, so by installing a large number of geothermal heat exchangers at the bottom or edge of the building, the securing and selection of the drilling site, delay in the construction process due to long-term drilling and on-site management costs increase;

As a national policy of the new and renewable energy supply business, from 2020, it is mandatory to install more than 30% of the total amount of energy used in buildings x 30% as new and renewable energy facilities, so more underground heat exchangers are needed in the future. as a method and solution to minimize the

By connecting and installing an air heat source heat exchanger in series to a geothermal or water heat source heat exchanger, and by connecting and installing a geothermal or water heat source heat exchanger in series to an air heat source heat exchanger, the axial power of an accessory facility is reduced or heat exchange efficiency is increased. to make;

Single or combined use of an air heat source, geothermal heat source, or water heat source heat exchanger can be used for control according to the outside air temperature and humidity enthalpy or heating and cooling load by installing heat exchanger switching all sides, three sides, and two sides on the connecting pipe on the outlet side of the heating and cooling switching side. to be switched by;

A heat exchanger for hot water and three-way valve are additionally installed at the outlet side of the compressor, which is always discharged in an overheated state, and hot water is supplied through the opening/closing control of the two-way valve installed at the inlet side of the third or fourth heat exchanger during low-load operation or non-operation in the changing season. A heat pump system and control method using a heat exchanger switching four-way and complex heat exchanger that can reduce the initial investment cost as well as energy saving and energy use efficiency through active use of non-electric energy, which is a renewable energy. it is about

The objects and advantages of the present invention are indicated by the above description or examples, and the detailed means of the present invention can be realized by the claims.

The present invention is controlled to switch or open and close by additionally installing heat exchanger switching four sides, heat exchanger bypass three sides, hot water supply bypass three sides, and the load side heat exchanger that produces and supplies cold/hot water or cold/hot air to the existing heat pump and;

In the air heat source heat pump, the heat exchanger switching side and the geothermal or water heat source heat exchanger and bypass pipe are installed, and the heat exchanger switching side and the air heat source heat exchanger and bypass pipe are installed in the geothermal or water heat source heat pump, A heat pump using a complex heat source and control that can increase energy efficiency and prevent overheating of the compressor by constructing a one-way refrigerant circulation circuit by installing four sides respectively before and after the subcooling heat exchanger and the expansion valve has the following advantages;

First: The heating load of the building is 30% to 40% of the cooling load. Using all four sides and three sides, the heat exchanger is switched and controlled so that the air heat source, geothermal heat source, or water heat source heat exchanger is used alone or in combination according to the load. It can greatly reduce the construction cost of geothermal or hydrothermal sources as well as increase the utilization efficiency;

Second: In the inlet pipe of the supercooling heat exchanger and the outlet pipe of the expansion valve, even if the flow direction of the refrigerant changes due to switching between heating and cooling, one side of the expansion valve is installed so that the refrigerant always flows in the same direction. By throttling, it increases energy efficiency and protects the compressor from overheating.

Third: Minimize the axial power of the system and reduce overheating by using an air heat source at low load, a geothermal or water heat source heat exchanger at heavy load, and both air heat source and geothermal or water heat source at maximum load, and at the same time using a supercooled heat exchanger. It can prevent burnout of the compressor and at the same time completely liquefy the circulating refrigerant in the high-pressure pipe to lower the compressor discharge pressure and the condensing pressure, thereby reducing power consumption;

Fourth: The high-pressure gas refrigerant in overheated state generated during compression of the compressor at low load is utilized as a heat source for hot water production through three-way switching control for hot water supply bypass, so separate hot water heating equipment such as a hot water supply boiler is unnecessary. can save;

Fifth: By zoning, when some equipment is not in use or during the changing seasons, the heat pump for heating and cooling is switched or controlled to the heat pump for hot water supply to produce and supply hot water.

1 is a system diagram of a combined heat source + cooling/heating + hot water supply according to an embodiment of the present invention.
2 is a flow chart of a refrigerant in an air heat source cooling operation according to an embodiment of the present invention.
3 is a flow chart of a refrigerant in a geothermal source cooling operation according to an embodiment of the present invention.
4 is a flow chart of a refrigerant in a water heat source cooling operation according to an embodiment of the present invention.
5 is a refrigerant flow diagram for a compound heat source heating operation according to an embodiment of the present invention.
6 is a refrigerant flow chart for combined heat source heating + hot water supply operation according to an embodiment of the present invention.
7 is a refrigerant flow diagram of a hot water supply operation for a multi-season combined heat source according to an embodiment of the present invention.
8 is a diagram illustrating a position change of an air heat source, a geothermal heat source, and a water heat source heat exchanger according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, according to the embodiment of the present invention, the air-conditioning and hot water supply operation and the circulating and bypassing functions by the four-sided, three-way, and anisotropic are used according to the external air enthalpy and the amount of heating and cooling load, and the air heat source A heat pump system and control method using a combined heat source heat exchanger that configures a refrigerant circuit in series with a geothermal heat source or a water heat source heat exchanger and controls them to operate alone or in combination to increase energy use efficiency, etc. will be described in detail.

Since the invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of elements or numbers, steps, operations, components, parts, or combinations thereof.

1, 2, 3, 4, and 8, the third heat exchanger 300 and the third heat exchanger serving as an evaporator for producing cooling water or cold air for cooling during summer cooling according to an embodiment of the present invention 4 heat exchanger 400,

A third heat exchanger that transfers the low-temperature and low-pressure gas refrigerant vaporized in the third heat exchanger 300 and the fourth heat exchanger 400 to the C port of the air-conditioning switching side 800 in order for the compressor 600 to suck it. (300) and the fourth heat exchanger (400) outlet pipe (40),

Suction pipe 45 for transferring low-temperature and low-pressure gas refrigerant to the compressor 600 through the C port of the heating/cooling switching four sides 800 and the D port communicating inside,

The low-temperature and low-pressure gaseous refrigerant vaporized in the third heat exchanger 300 and the fourth heat exchanger 400 serving as an evaporator is sucked through the suction pipe 45, and is in an overheated state using an electric motor and a compression mechanism. Compressor 600 for compression with gas refrigerant of

A discharge pipe 05 for transferring the gas refrigerant compressed at high temperature and high pressure in the compressor 600 using an electric motor and a compression mechanism to the first heat exchanger 100 and the second heat exchanger 200 serving as a condenser;

Hot water supply agent for producing hot water for hot water supply by changing the transfer direction of the high-temperature and high-pressure gas refrigerant discharged from the compressor 600 to the discharge pipe 05 through the switching control operation of the three-way side 750 for hot water supply switching 5 heat exchanger (500);

In the fifth heat exchanger 500 for hot water supply, the gas refrigerant from which the degree of superheat has been removed through hot water production is transferred to the first heat exchanger 100 serving as a condenser for liquefaction. connected discharge pipe (10),

Through the A port of the heating and cooling switching four sides 800 and the B port communicating from the inside, through the E port of the discharge pipe 15 and the heat exchanger switching four sides 900 and the F port communicating from the inside, 1 The first heat exchanger 100 in which the high-temperature and high-pressure gas refrigerant transferred through the inlet pipe 20 of the heat exchanger 100 liquefies into a high-temperature and high-pressure liquid refrigerant through the heat dissipation action to air;

The refrigerant liquid-gasified through the primary liquefaction action of the first heat exchanger 100 is connected to the outlet pipe 25 and the H port of the heat exchanger switching four sides 900 and the G port communicating inside the connection pipe 30 ) through a second heat exchanger 200 that performs a secondary heat dissipation action with a geothermal or water heat source to completely liquefy,

The refrigerant completely liquefied in the second heat exchanger 200 is removed through the second heat exchanger bypass three-way side 1050 of the second heat exchanger outlet 200a, the expansion side one-way four-way side 1000 and the receiver 3000 3, a supercooling heat exchanger 2100 and an expansion valve 1100 that expand and contract with a low-temperature and low-pressure liquid refrigerant to facilitate evaporation in the heat exchanger 300 and the fourth heat exchanger 400 and supercool it;

Heat exchange with the high-temperature liquid refrigerant transferred to the expansion valve 1100 using the low-temperature liquid refrigerant introduced into the supercooled heat exchanger 2100 by expansion and contraction using the supercooled heat exchanger two-way valve 2200 and the supercooled heat exchanger expansion valve 2300 A low-temperature liquid-gas refrigerant is introduced into the compressor 600 in order to prevent overheating of the compressor 600 through the suction pipe 2400,

The phase change of the liquid refrigerant of high temperature and high pressure into the liquid refrigerant of low temperature and low pressure by the supercooling action by the supercooling heat exchanger 2100 and the throttling expansion by the expansion valve 1100 to the third heat exchanger 300 or the fourth heat exchanger 400 When supplied to brine or air, one cycle is completed when it is vaporized into low-temperature and low-pressure gas refrigerant through heat exchange with brine or air, and then discharged to the outlet pipe 40 of the third heat exchanger 300 or the fourth heat exchanger 400, .

The first heat exchanger 100 and the heat exchanger switching three-way side 900 and the second heat exchanger 200 and the second heat exchanger bypass three-way side 1050 are according to the enthalpy size of the air heat source and the geothermal heat source or the water heat source. It is possible to perform the same operation even if the installation positions are changed; In an embodiment,

(1) When the outdoor air enthalpy decreases or the cooling load decreases, the amount of refrigerant compressed and discharged by the compressor 600 is small, so that the entire amount can be liquefied only with the first heat exchanger 100. The outdoor air enthalpy sensor 2000 and the high pressure pressure sensor ( 1900), the low pressure pressure sensor 1800, the discharge gas temperature sensor 2900, and the intake gas temperature sensor 2800 through a control logic program using only the first heat exchanger 100 and a geothermal or water heat source with large shaft power. The second heat exchanger 200 using the second heat exchanger 200 is closed by switching control of the second heat exchanger switching three-way side 1050 installed at the outlet of the second heat exchanger 200 through outdoor air enthalpy control so that it is not used. and the J port and the receiver (3000) communicating with the I port of the one-way four-way side 1000 of the expansion valve through the bypass pipe 200b and the liquid pipe 35 installed in parallel to the second heat exchanger 200. When it is transferred to the supercooling heat exchanger 2100 through the supercooling heat exchanger 2100 and the throttling expansion action of the expansion valve 1100 and the supercooling action of the supercooling heat exchanger 2100, when the phase change from the high temperature and high pressure liquid refrigerant to the low temperature and low pressure liquid refrigerant When it is transferred to the third heat exchanger 300 or the fourth heat exchanger 400 through the L port and the low pressure pipe 38 communicating with the K port of the side 1000, it is vaporized through heat exchange with brine or air. It changes to low-temperature and low-pressure gas refrigerant and is discharged to the outlet pipe 40 of the third heat exchanger 300 or the fourth heat exchanger 400 .

(2) When the enthalpy of the outdoor air 2000 changes or the cooling load changes, the amount of refrigerant compressed and discharged by the compressor 600 also changes, so the first heat exchanger 100 is used, and the outdoor air enthalpy sensor 2000 and the high pressure pressure sensor (1900), the low pressure pressure sensor 1800, the discharge gas temperature sensor 2900 and the intake gas temperature sensor 2800 through the control logic logic program using the second heat exchanger 200 outlet installed second heat exchanger switching three-way By the switching control of 1050, the bypass pipe 200b installed in parallel to the second heat exchanger 200 is transferred to the second heat exchanger 200 or stopped at the same time through the closing or opening operation. I of the expansion valve unidirectional four sides 1000 through the second heat exchanger 200 outlet 200a and the liquid pipe 35 by completely liquefying it through supply and blocking of the geothermal or water heat source to the second heat exchanger 200 When transferred to the supercooling heat exchanger 2100 through the J port and the receiver 3000 communicating with the port, the supercooling action by the supercooling heat exchanger 2100 and the throttling expansion action of the expansion valve 1100 cause high temperature and high pressure When the liquid refrigerant is phase-changed into a low-temperature and low-pressure liquid refrigerant, the third heat exchanger 300 or the fourth heat exchanger ( When transferred to 400), it is vaporized through heat exchange with brine or air, and is changed to low-temperature and low-pressure gas refrigerant, and is discharged to the outlet pipe 40 of the third heat exchanger 300 or the fourth heat exchanger 400 .

(3) When the enthalpy of the outdoor air (2000) rises and the cooling load becomes the maximum, the amount of refrigerant discharged by compression increases as much as possible, so that the power consumption increases due to the increase in the shaft power of the compressor 600, and the first heat exchanger 100 and the second heat exchange Since the amount of heat dissipation of the unit 200 also increases, the control logic using the outdoor air enthalpy sensor 2000, the high pressure sensor 1900, the low pressure pressure sensor 1800, the discharge gas temperature sensor 2900, and the intake gas temperature sensor 2800 Through a logic program, a large amount of gas refrigerant discharged from the compressor 600 at high temperature and high pressure in an overheated state by using the fifth heat exchanger 400 through a logic program is stored in the hot water hot water storage tank 1300 or heat exchanged with the water supply, etc. When the high-pressure gas refrigerant is first dissipated and the condensed pressure is lowered by dissipating the second and tertiary heat to the first heat exchanger 100 and the second heat exchanger 200, the axial power of the compressor 600 is reduced, thereby reducing power consumption. It is possible to produce and use hot water in summer without using a dedicated facility for hot water production such as a boiler.

In place of the switching quadrilateral (900, 1000) and three-sided (750, 1050), it includes that a refrigerant circulation circuit can be configured through the same operation control using a plurality of anisotropic sides,

The first heat exchanger 100 and the heat exchanger switching three-way side 900 and the second heat exchanger 200 and the second heat exchanger bypass three-way side 1050 have the enthalpy size of the air heat source and the geothermal heat source or water heat source. Accordingly, a system capable of performing the same operation even if the installation location is changed is constituted.

1, 5, and 8, the third heat exchanger 300 or the fourth heat exchanger 400 serving as a condenser for producing hot air or producing hot water for heating during winter heating according to an embodiment of the present invention ), the first heat exchanger 100 and the second heat exchanger 200 serving as an evaporator to absorb heat required for

In order for the compressor 600 to suck in the low-temperature and low-pressure gas refrigerant vaporized in the first heat exchanger 100 and the second heat exchanger 200 serving as an evaporator, the outlet pipe 30 of the second heat exchanger 200 and Switching the heat exchanger connected to the first heat exchanger inlet pipe 25 and the first heat exchanger 100 through the G port of the four sides 900 and the H port communicating inside, the heat exchanger switching connected to the outlet pipe 20 of the first heat exchanger 100 The suction pipe 15 connected to the F port of the four sides 900 and the E port communicating from the inside,

Suction pipe 45 for transporting low-temperature and low-pressure gas refrigerant to the compressor 600 through the B port of the air-conditioning switching side 800 connected to the suction pipe 15 and the D port communicating from the inside;

The low-temperature and low-pressure gas refrigerant vaporized in the second heat exchanger 200 and the first heat exchanger 100 serving as an evaporator is sucked through the suction pipe 45, and a high-temperature and high-pressure gas refrigerant is used using an electric motor and a compression mechanism. Compressor 600 for compression with

A discharge pipe 05 for transferring the gas refrigerant compressed at high temperature and high pressure in the compressor 600 using an electric motor and a compression mechanism to the third heat exchanger 300 and the fourth heat exchanger 400 serving as a condenser;

The fifth heat exchange for producing hot water for hot water supply by changing the transfer direction of the high-temperature and high-pressure gas refrigerant with a high degree of superheating discharged from the compressor 600 to the discharge pipe 05 with the switching control operation of the three-way switch 750 for hot water supply. group 400,

In order to transfer the gas refrigerant from which the superheat degree has been removed by the hot water production in the fifth heat exchanger 400 to the third heat exchanger 300 and the fourth heat exchanger 400 serving as a condenser, A of the heating and cooling switching four sides 800 Through the port C communicating with the port and the discharge pipe (40),

The third heat exchanger 300 or the fourth that absorbs the heat from the high-temperature and high-pressure gas refrigerant transferred through the discharge pipe 40 using brine or air to produce hot water or hot air for heating and liquefy it into a high-temperature and high-pressure liquid refrigerant. heat exchanger 400,

A supercooling heat exchanger that supercools the high temperature and high pressure liquid refrigerant liquefied in the third heat exchanger 300 and the fourth heat exchanger 400 to facilitate evaporation in the second heat exchanger 200 and the first heat exchanger 100 ( 2100) and the liquid pipe 36 for supplying the expansion valve 1100 that expands and contracts,

Two-way sides (2310, 2410) for opening and closing the flow of refrigerant depending on whether the third heat exchanger (300) or the fourth heat exchanger (400) is used;

An expansion valve that throttles and expands the supercooled high-temperature and high-pressure liquid refrigerant into a low-temperature and low-pressure liquid refrigerant through the supercooling heat exchanger 2100 to facilitate vaporization in the second heat exchanger 200 and the first heat exchanger 100, which serve as an evaporator. 1100),

Heat exchange with the high-temperature liquid refrigerant transferred to the expansion valve 1100 using the low-temperature liquid refrigerant introduced into the supercooled heat exchanger 2100 by expansion and contraction using the supercooled heat exchanger two-way valve 2200 and the supercooled heat exchanger expansion valve 2300 A low-temperature liquid-gas refrigerant is introduced into the compressor 600 in order to prevent overheating of the compressor through the suction pipe 2400

A second heat exchanger 200 and a first heat exchanger 100 that absorb heat for heating from a geothermal or water heat source or an air heat source using the latent heat of evaporation of the liquid refrigerant of low temperature and low pressure transferred from the expansion valve 1100,

A first heat exchanger (100) in which the liquid-gasified refrigerant by primary vaporization through heat exchange with the geothermal or water heat source of the second heat exchanger (200) undergoes secondary heat exchange with an air heat source to completely vaporize it into a gas refrigerant;

The second heat exchanger 200, the first heat exchanger inlet pipe 25 connected to the H port, the H port communicating with the G port of the four sides 900 through the outlet pipe 30,

In order to communicate with the first heat exchanger inlet pipe 25, the heat exchanger switching four sides 900 connected to the first heat exchanger outlet pipe 20 for communication with the F port and the suction pipe 15 connected to the E port communicating from the inside;

It is sucked through the suction pipe 45 connected to the B port of the air-conditioning switching four sides 800 connected to the suction pipe 15 and the D port communicating inside, compressed by the compressor 600, and the discharge pipe (05, 10) One cycle is completed when exhausted to the third heat exchanger 300 and the fourth heat exchanger 400 through the A port and the C port that communicates with the heating and cooling switching four sides 800 from the inside.

The first heat exchanger 100 and the heat exchanger switching three-way side 900 and the second heat exchanger 200 and the second heat exchanger bypass three-way side 1050 are according to the enthalpy size of the air heat source and the geothermal heat source or the water heat source. It is possible to perform the same operation even if the installation positions are changed; In an embodiment,

(1) When the enthalpy of outdoor air (2000) increases and the amount of heating load decreases, the amount of refrigerant sucked into the compressor (600) is reduced. In order to absorb heat using only the first heat exchanger (100) with a small axial power, the outdoor air enthalpy sensor (2000) and the second heat exchanger 200 with large shaft power and controlled through a control logic program using the high pressure pressure sensor 1900, the low pressure pressure sensor 1800, the discharge gas temperature sensor 2900 and the intake gas temperature sensor 2800 In the third heat exchanger 300 or the fourth heat exchanger 400 through the liquid pipe 38, the L port of the one-way four-way side 1000 of the expansion valve communicates with the J port and the receiver (3000) When transferred to the supercooling heat exchanger 2100 through The second heat exchange is controlled by switching control of the three-way side 1050 of the second heat exchanger 200 installed at the inlet of the second heat exchanger 200 through the I port communicating with the K port of the four sides 1000 and the low pressure pipe 35 inside. When the device 200 is closed and the bypass pipe 200b installed in parallel to the second heat exchanger 200 is opened and transported by bypassing the low pressure pipe 30, the G port of the heat exchanger switching side 900 and After exchanging heat with the first heat exchanger 100 through the H port communicating inside, the suction pipe 15 connected to the E port communicating with the F port and the B port of the heating and cooling switching four sides 800 communicate from the inside. It is sucked into the compressor 600 via the suction pipe 45 through the D port.

(2) When the enthalpy of the outdoor air (2000) decreases and the heating load increases, the amount of refrigerant sucked into the compressor 600 also increases. Therefore, in order to use only the second heat exchanger 200 that can provide a stable heat source, the outdoor air enthalpy sensor 2000 and Through the control logic program using the high pressure pressure sensor 1900, the low pressure pressure sensor 1800, the discharge gas temperature sensor 2900, and the intake gas temperature sensor 2800, the second heat exchanger switching three-way side 1050 is switched and controlled. The second heat exchanger 200 is opened and the bypass pipe 200b installed in parallel to the second heat exchanger 200 is closed, and the liquid pipe ( 38), when transferred to the supercooling heat exchanger 2100 through the L port of the expansion valve unidirectional four sides 1000 and the J port communicating inside and the receiver 3000, the supercooling action by the supercooling heat exchanger 2100 and When the high-temperature, high-pressure liquid refrigerant is changed into a low-temperature and low-pressure liquid refrigerant by the throttling expansion action of the expansion valve 1100, the K port of the expansion valve unidirectional four sides 1000 communicates with the I port and the low pressure pipe 35 After exchanging the refrigerant transferred to the inlet of the second heat exchanger 200 with the second heat exchanger 200, the low pressure pipe 30 at the outlet and the G port of the heat exchanger switching four sides 900 and the E port communicate inside It is sucked into the compressor 600 via the suction pipe 45 through the B port on all sides of the heating/cooling switching and the D port communicating inside.

However, in this case, the first heat exchanger 100 is not used because the heat exchanger switching four sides 900 are internally closed.

(3) When the enthalpy of the outdoor air (2000) increases and the heating load becomes maximum, the amount of refrigerant sucked into the compressor 600 also increases to the maximum, so that the first heat exchanger 100 with less axial power and the second heat exchanger capable of supplying a stable heat source In order to use all (200), the control logic program using the outdoor air enthalpy sensor 2000, the high pressure pressure sensor 1900, the low pressure pressure sensor 1800, the discharge gas temperature sensor 2900, and the intake gas temperature sensor 2800. Through the switching control of the second heat exchanger switching three-way side 1050, the second heat exchanger 200 is opened and the bypass pipe 200b installed in parallel to the second heat exchanger 200 is closed, the third heat exchanger (300) or the refrigerant liquefied in the fourth heat exchanger 400 is supercooled by the supercooling heat exchanger 2100, and the refrigerant is transferred to the inlet of the second heat exchanger 200 by throttling expansion in the expansion valve 1100 to change to low temperature and low pressure. to the second heat exchanger 200 and the first heat exchanger 100 through the low pressure pipe 30 at the outlet and the G port of the heat exchanger switching four sides 900 and the H port communicating inside After the secondary heat exchange, the suction pipe 15 connected to the E port communicating with the F port and the B port of the heating and cooling switching four sides 800 and the D port communicating from the inside through the suction pipe 45 It is sucked into the compressor (600).

It includes being able to configure a refrigerant circulation circuit through the same operation control using a plurality of anisotropic sides instead of the four sides (900, 1000) and the three sides (750, 1050),

The first heat exchanger 100 and the first heat exchanger switching three-way side 900 and the second heat exchanger 200 and the second heat exchanger bypass three-way side 1050 are enthalpy of an air heat source and a geothermal heat source or a water heat source A system capable of performing the same operation is constituted even if the installation location is changed depending on the size.

1, 6, and 7, when the production of hot water for hot water supply is required during temporary non-discharge or in changing seasons due to non-use of some equipment due to zoning during heating operation according to an embodiment of the present invention,

The high-temperature and high-pressure gas refrigerant with a high degree of superheating discharged from the compressor 600 to the discharge pipe 05 is switched to hot water supply by changing the refrigerant transfer direction by switching control operation of the three-way side 750 to produce hot water for hot water supply and supply gas refrigerant. a fifth heat exchanger 500 for liquefying;

A high-pressure pipe (10) for transferring the liquid refrigerant from which the degree of superheat has been removed by the production of hot water for hot water supply in the fifth heat exchanger (500) to the heating/cooling switching side (800),

Phase change through liquefaction in the third heat exchanger 300 or the fourth heat exchanger 400 or the fifth heat exchanger 400 through the A port of the heating and cooling switching four sides 800 and the C port communicating inside Opening and closing operation for transferring the refrigerant liquefied in the fifth heat exchanger 400 to the supercooling heat exchanger 2100 through the bypass pipe 1110b without passing one refrigerant through the third heat exchanger 300 and the fourth heat exchanger 2100 Performing the third and fourth heat exchanger bypass anisotropic side 1110,

The third and fourth heat exchanger bypass side 1110 and the liquid pipe 38 through the L port of the expansion side one-way all sides 1000 and the J port communicating inside and the receiver 3000 through the supercooling heat exchanger When transferred to 2100, the phase change from the high temperature and high pressure liquid refrigerant to the low temperature and low pressure liquid refrigerant by the supercooling action by the supercooling heat exchanger 2100 and the throttling expansion action of the expansion valve 1100 One-way four-way side (1000) of the expansion side connected to the I port and the low pressure pipe (35) communicating with the K port of the

An expansion valve that throttles and expands the supercooled high-temperature and high-pressure liquid refrigerant into a low-temperature and low-pressure liquid refrigerant through the supercooling heat exchanger 2100 to facilitate vaporization in the second heat exchanger 200 and the first heat exchanger 100, which serve as an evaporator. 1100),

Heat exchange with the high-temperature liquid refrigerant transferred to the expansion valve 1100 using the low-temperature liquid refrigerant introduced into the supercooled heat exchanger 2100 by expansion and contraction using the supercooled heat exchanger two-way valve 2200 and the supercooled heat exchanger expansion valve 2300 A low-temperature liquid-gas refrigerant is introduced into the compressor 600 in order to prevent overheating of the compressor 600 through the suction pipe 2400,

Low-pressure liquid pipe 35 for supplying the low-temperature and low-pressure liquid refrigerant throttled and expanded in the expansion valve 1100 to the second heat exchanger 200 and the first heat exchanger 100 serving as an evaporator;

A second heat exchanger 200 in which the low-temperature and low-pressure liquid refrigerant first absorbs heat for hot water supply from a geothermal or water heat source,

A first heat exchanger 100 for absorbing secondary heat from an air heat source of a refrigerant in a liquid-gas state of low temperature and low pressure that has not been completely vaporized in the second heat exchanger 200;

The first heat exchanger inlet pipe 25 connected to the H port and the H port communicating with the G port of the heat exchanger switching four sides 900 through the outlet pipe 30 of the second heat exchanger 200,

In order to communicate with the first heat exchanger inlet pipe 25, the heat exchanger switching four sides 900 connected to the first heat exchanger outlet pipe 20 for communication with the F port and the suction pipe 15 connected to the E port communicating from the inside;

It is sucked through the suction pipe 45 connected to the D port communicating with the B port of the air-conditioning switching four sides 800 connected to the suction pipe 15 and compressed by the compressor 600 through the discharge pipe 05. and discharge to the fifth heat exchanger 400 completes one cycle; In an embodiment, during heating operation, in a temporary non-rooming or changing season due to the selection and non-use of the third heat exchanger or the fourth heat exchanger as zoning,

(1) When the enthalpy of outdoor air (2000) is high and the production of hot water is required when a part of the third or fourth heat exchanger is not used,

By the enthalpy sensor, pressure sensor, and temperature sensor control logic program, hot water supply switching three-way side 750 and heat exchanger switching four-way side 900 and the third and fourth heat exchanger bypass side side 1100 and the third heat exchanger side side are anisotropic By switching control of the side 2310, the fourth heat exchanger side 2410, etc.,

The high-temperature, high-pressure gas refrigerant in an overheated state discharged from the compressor 600 through the discharge pipe 05 is transferred to the fifth heat exchanger 400 and is liquefied by heat exchange with the water supply stored in the hot water supply tank 1300 or supplied. refrigerant,

The third heat exchanger 300 and the fourth heat exchanger 400 through the high-pressure pipe 40 through the A port of the air-conditioning switching four sides 900 connected to the high-pressure pipe 10 and the C port communicating inside. When transferred to the side,

The anisotropic sides 2310 and 2410 installed in the third heat exchanger 300 and the fourth heat exchanger, respectively, are selectively opened according to a control logic program to exchange the refrigerant with the third heat exchanger 300 or the fourth heat exchanger 400, After liquefying, when transferred to the supercooling heat exchanger 2100 and the expansion valve 1100 through the L port and J port and the receiver 3000 of the expansion valve one-way four sides (1000),

The refrigerant completely liquefied through the fifth heat exchanger and the third heat exchanger 300 or the fourth heat exchanger 400 and the supercooling heat exchanger 2100 is throttled and expanded in the expansion valve 1100 to change to a low temperature and low pressure, and then in one direction of the expansion valve. The first heat exchange is performed by transferring to the inlet of the second heat exchanger 200 through the K port and I port of the four sides 1000,

After secondary heat exchange with the first heat exchanger 100 through the low pressure pipe 30 at the outlet and the G port of the heat exchanger switching four sides 900 and the H port communicating inside, E communicating with the F port inside It is sucked into the compressor 600 via the suction pipe 45 through the low pressure pipe 15 connected to the port and the B port of the heating/cooling switching four sides 800 and the D port communicating inside.

(2) When the enthalpy of the outdoor air (2000) is low and the production of hot water is required when a part of the third heat exchanger 300 or the fourth heat exchanger 400 is not used,

The external air enthalpy sensor 2000 and the discharge and intake gas temperature sensors 2900 and 2800 control logic program for hot water supply switching three-way valve 750 and heat exchanger switching four-way valve 900 and heat exchanger 3 and 4 bypass two-way valve (1110) and the third heat exchanger anisotropic side (2310) by switching control of the fourth heat exchanger anisotropic side (2410),

The high-temperature, high-pressure gas refrigerant in an overheated state discharged from the compressor 600 through the discharge pipe 05 is transferred to the fifth heat exchanger 400 and is liquefied by heat exchange with the water supply stored in the hot water supply tank 1300 or supplied. refrigerant,

The third heat exchanger 300 and the fourth heat exchanger 400 through the high-pressure pipe 40 through the A port of the air-conditioning switching four sides 900 connected to the high-pressure pipe 10 and the C port communicating inside. When transferred to the side,

The third heat exchanger 300 and the fourth heat exchanger 400 installed anisotropic sides 2310 and 2410 are selectively opened according to the control logic program to transfer the refrigerant to the third heat exchanger 300 or the fourth heat exchanger 400 and When it is liquefied by heat exchange, it is transferred to the supercooling heat exchanger 2100 and the expansion valve 1100 through the L port and J port and the receiver 3000 on the one-way side of the expansion valve (1000).

The refrigerant completely liquefied through the fifth heat exchanger and the third heat exchanger 300 or the fourth heat exchanger 400 and the supercooling heat exchanger 2100 is throttled and expanded in the expansion valve 1100 to change to a low temperature and low pressure, and then in one direction of the expansion valve in all directions. The side 1000 is transferred to the inlet of the second heat exchanger 200 through the K port and the I port for heat exchange,

The low-pressure pipe 15 at the outlet and the low-pressure pipe 15 connected to the E port communicating internally with the G port by switching control of the heat exchanger switching four sides 900 and the B port of the heating and cooling switching four sides 800 and the inside It is sucked into the compressor 600 via the suction pipe 45 through the communicating D port.

However, in this case, the first heat exchanger 100 is not used because the heat exchanger switching four sides 900 are internally closed.

(3) When the enthalpy of outdoor air (2000) is high and the production of hot water is required during the changing seasons where air conditioning is unnecessary

External air enthalpy sensor (2000) and high and low pressure pressure sensors (1900, 1800) and discharge and intake gas temperature sensors (2900, 2800) Hot water supply switching three-way side (750) and heat exchanger switching side side (900) by control logic program and by switching or opening/closing control of the third and fourth heat exchanger bypass side 1110,

The high-temperature, high-pressure gas refrigerant in an overheated state discharged from the compressor 600 through the discharge pipe 05 is transferred to the fifth heat exchanger 400 and is liquefied by heat exchange with the water supply stored in the hot water supply tank 1300 or supplied. refrigerant,

The third heat exchanger 300 and the fourth heat exchanger 400 through the high-pressure pipe 40 through the A port of the air-conditioning switching four sides 900 connected to the high-pressure pipe 10 and the C port communicating inside. When transferred to the side high-pressure pipe (40),

By controlling the third and fourth heat exchanger bypass two-way sides 1100 installed in the high-pressure pipe 40 in an open state, the third and fourth heat exchanger bypass pipes 1110b are opened, and the third heat exchanger 300 ) and the fourth heat exchanger 400 side are closed, the refrigerant liquefied through the fifth heat exchanger passes through the third and fourth heat exchanger bypass pipes 1110b and the third and fourth heat exchanger bypass sides 1110. When transferred to the expansion side one-way four-way side 1000 through,

The high-temperature and high-pressure refrigerant transferred to the supercooling heat exchanger 2100 and the expansion valve 1100 through the L port and J port and the receiver 3000 on the expansion valve one-way four-way side 1000 is throttled and expanded to change to a low temperature and low pressure, and then the expansion valve unidirectional The first heat exchange is performed by transferring to the inlet of the second heat exchanger 200 through the K port and I port of the four sides 1000,

After secondary heat exchange with the first heat exchanger 100 through the low pressure pipe 30 at the outlet and the G port of the heat exchanger switching four sides 900 and the H port communicating inside, E communicating with the F port inside It is sucked into the compressor 600 via the suction pipe 45 through the low pressure pipe 15 connected to the port and the B port of the heating/cooling switching four sides 800 and the D port communicating inside.

(4) Outdoor air (2000) When enthalpy is low and hot water production is required during the changing seasons where heating and cooling are unnecessary,

External air enthalpy sensor (2000) and high and low pressure pressure sensors (1900, 1800) and discharge and intake gas temperature sensors (2900, 2800) Hot water supply switching three-way side (750) and heat exchanger switching side side (900) by control logic program and by switching or opening/closing control of the third and fourth heat exchanger bypass side 1110,

The high-temperature, high-pressure gas refrigerant in an overheated state discharged from the compressor 600 through the discharge pipe 05 is transferred to the fifth heat exchanger 400 and is liquefied by heat exchange with the water supply stored in the hot water supply tank 1300 or supplied. refrigerant,

The third heat exchanger 300 and the fourth heat exchanger 400 through the high-pressure pipe 40 through the A port of the air-conditioning switching four sides 900 connected to the high-pressure pipe 10 and the C port communicating inside. When transferred to the side high-pressure pipe (40),

By controlling the third and fourth heat exchanger bypass anisotropic sides 1110 installed in the high pressure pipe 40 in an open state, the third and fourth heat exchanger bypass pipes 1110b are opened, and the third heat exchanger 300 ) and the fourth heat exchanger 400 side are closed, the refrigerant liquefied through the fifth heat exchanger passes through the third and fourth heat exchanger bypass pipes 1110b and the third and fourth heat exchanger bypass anisotropic sides 1110 When transferred to the expansion side one-way four-way side 1000 through,

The high-temperature and high-pressure refrigerant transferred to the supercooling heat exchanger 2100 and the expansion valve 1100 through the L port and J port and the receiver 3000 on the expansion valve one-way four-way side (1000) is throttled and expanded to change to a low temperature and low pressure, and then the expansion valve one-way Transfer to the inlet of the second heat exchanger 200 through the K port and I port of the four sides 1000 and heat exchange

The low-pressure pipe 15 at the outlet and the low-pressure pipe 15 connected to the E port communicating internally with the G port by switching control of the heat exchanger switching four sides 900 and the B port of the heating and cooling switching four sides 800 and the inside It is sucked into the compressor 600 via the suction pipe 45 through the communicating D port.

However, in this case, the first heat exchanger 100 is not used because the heat exchanger switching four sides 900 are internally closed.

In place of the quadrilateral 900 and the three quadrilateral sides 750 and 1050, a plurality of anisotropic sides may be used to configure a refrigerant circulation circuit through the same operation.

100: first heat exchanger 200: second heat exchanger
300: third heat exchanger 400: fourth heat exchanger
400: fifth heat exchanger 600: compressor
750: hot water switching three-way 800: heating and cooling switching four-way
900: heat exchanger switching all sides 1000: expansion valve one-way all sides
1050: second heat exchanger bypass three-way side 1100: expansion valve
1110: third, fourth heat exchanger bypass side 1300: hot water storage tank
1400: geothermal heat exchanger 1550: geothermal heat exchanger switching three-way
1600: 2nd heat exchanger 1700: water heat source heat exchanger
1800: low pressure pressure sensor 1900: high pressure pressure sensor
2000: outdoor temperature and humidity enthalpy sensor 2100: supercooled heat exchanger
2200: supercooled heat exchanger anisotropic valve 2300: supercooled heat exchanger expansion valve
2310: third heat exchanger anisotropic side 2400: supercooling heat exchanger suction pipe
2410: fourth heat exchanger anisotropic side 2500: heat source temperature sensor
2600: water heat source temperature sensor 2800: intake gas temperature sensor
2900: discharge gas temperature sensor 3000: receiver

Claims (9)

In a heat pump system, a refrigerant switching and opening/closing means including a plurality of heat exchangers, four sides, three sides, two sides, and bypass piping, and air heat source, geothermal heat source, or water heat source are transferred to the heat source of the heat pump system to provide a cooling operation mode, Heating operation mode and hot water supply operation mode are possible, depending on the external air enthalpy, heating and cooling and hot water supply load, air heat source cooling operation and heating operation, geothermal or water heat source cooling operation and heating operation, air heat source and geothermal heat source or water heat source cooling characterized in that it has a function of operation and heating operation, air heat source hot water supply operation, geothermal or water heat source hot water supply operation, and air heat source and geothermal or water heat source hot water supply operation functions;
Composite heat source heat pump system and control method using an air heat source and various geothermal or water heat sources as an all-round light for heat exchanger switching that adapts to the outdoor air enthalpy and heating/cooling load The method of claim 1,
In a heat pump system using the air heat source, geothermal heat source, or water heat source as a heat pump system heat source, the outdoor air enthalpy sensor 2000 and high and low pressure pressure sensors 1900 and 1800 and discharge and suction gas temperature sensors 2900 and 2800 are connected. The low-pressure gas refrigerant evaporated by the third heat exchanger 300 or the fourth evaporator 400 installed in parallel by the control logic program used is introduced into the C port of the heating and cooling switching side 800 through the outlet pipe 40, It is sucked into the compressor 600 through the D port and the suction pipe 45 communicating inside.
The high-pressure gas refrigerant sucked into the compressor 600 and discharged in an overheated state due to the compression action passes through the discharge pipe 05, the hot water supply switching three-way side 750 and the discharge pipe 10, and the It enters through port A.
After the air-conditioning switching side 800, port A and port B communicating from the inside, a heat exchanger switching side side 900 is additionally installed and connected to port E through the connection pipe 15 .
The inlet pipe 20 of the first heat exchanger 100 is connected to the F port communicating with the E port of the heat exchanger switching four sides 900 and is connected to the inlet pipe 30 of the second heat exchanger 200 The G port is connected to and communicates with the outlet pipe 25 of the first heat exchanger 100 through the H port communicating therein.
When the use of the first heat exchanger 100 is unnecessary, the heat exchanger switching four sides 900 release the communication between the E port and the F port through a switching operation and directly communicate with the second heat exchanger 200 through the G port. and at this time
The F port and the H port of the heat exchanger switching four sides 900 are internally communicated with the first heat exchanger 100, but the refrigerant flow to the first heat exchanger is cut off;
Composite heat source heat pump system and control method using an air heat source and various geothermal or water heat sources as an all-round light for heat exchanger switching that adapts to the outdoor air enthalpy and heating/cooling load The method of claim 1,
A first heat exchanger (100) that performs the role of a condenser when cooling in summer and an evaporator when heating in winter using the heating/cooling switching four-sided 800, heat exchanger switching four-sided 900, and one-way four-sided edge 1000. ) and the use of the second heat exchanger 200, the outdoor air enthalpy sensor 2000, the high and low pressure pressure sensors 1900 and 1800, and the discharge and intake gas temperature sensors 2900 and 2800, as a method of execution by a control logic program,
When cooling,
The compressor (600) → Discharge pipe (05,10) → Air-conditioning switching All sides (800) A port → B port → Heat exchanger switching All sides (900) E port → F port → First heat exchanger (100) → heat exchange Air change four sides (900) H port → G port → second heat exchanger (200) → second heat exchanger bypass three-way side (1050) → liquid pipe (35) → expansion valve one-way all sides (1000) I port → J Port → Liquid pipe (36) → Receiver (3000) → Supercooling heat exchanger (2100) → Expansion valve (1100) → Expansion valve unidirectional four-way side (1000) K port → L port → Liquid pipe (38) → 3rd and 4th heat exchange Air side side (2310, 2410) → 3rd and 4th heat exchangers (300, 400) → Heating and cooling switching 4-way side (800) C port → D port → suction pipe (45) → 1st heat exchanger ( 100) and a method of using both the second heat exchanger 200; and
The compressor (600) → Discharge pipe (05,10) → Air-conditioning switching All sides (800) A port → B port → Heat exchanger switching All sides (900) E port → F port → First heat exchanger (100) → heat exchange Air change four sides (900) H port → G port → 2nd heat exchanger bypass pipe (200b) → 2nd heat exchanger bypass three-way side (1050) → Liquid pipe (35) → Expansion valve one-way all sides (1000) I Port → J port → Liquid pipe (36) → Receiver (3000) → Supercooling heat exchanger (2100) → Expansion valve (1100) → Expansion valve one-way, all sides (1000) K port → L port → Liquid pipe (38) → 3rd ,4 heat exchanger opposite side (2310, 2410) → 3rd and 4th heat exchanger (300, 400) → air-conditioning switching all sides (800) C port → D port → suction pipe (45) → first suctioned by compressor (600) How to use only the heat exchanger 100; and
The compressor (600) → discharge pipe (05,10) → air-conditioning switching all sides (800) A port → B port → heat exchanger switching all sides (900) E port → G port → second heat exchanger (200) → second 2 Heat Exchanger Bypass Three-way side (1050)→ Liquid pipe (35)→ Expansion valve One-way, all sides (1000) I port→ J port→ Liquid pipe (36)→ Receiver (3000)→ Supercooling heat exchanger (2100)→ Expansion valve (1100) → Expansion valve one-way all sides (1000) K port → L port → Liquid pipe (38) → 3rd and 4th heat exchanger two-way side (2310,2410) → 3rd and 4th heat exchanger (300,400) → Heating and cooling switching all directions Side (800) C port → D port → suction pipe (45) → is a method of using only the second heat exchanger 200 sucked into the compressor (600),
When heating,
The compressor (600) → discharge pipe (05,10) → air-conditioning switching four sides (800) A port → C port → 3rd and 4th heat exchangers (300,400) → 3rd and 4th heat exchanger two sides (2310,2410) ) → Liquid pipe (38) → Expansion valve one-way all sides (1000) L port → J port → Liquid pipe (36) → Receiver (3000) → Supercooling heat exchanger (2100) → Expansion valve (1100) → Expansion valve one-way all sides ( 1000) K port → I port → Liquid pipe (35) → 2nd heat exchanger bypass 3-way side (1050) → 2nd heat exchanger (200) → Heat exchanger switching all sides (900) G port → H port → 1st Heat exchanger (100) → heat exchanger switching all sides (900) F port → E port → air conditioning switching all sides (800) B port → D port → suction pipe (45) → the first heat exchanger sucked into the compressor (600) (100) and a method of using both the second heat exchanger (200); and
The compressor (600) → discharge pipe (05,10) → air-conditioning switching four sides (800) A port → C port → 3rd and 4th heat exchangers (300,400) → 3rd and 4th heat exchanger two sides (2310,2410) → Liquid pipe (38) → Expansion valve one-way all sides (1000) L port → J port → Liquid pipe (36) → Receiver (3000) → Supercooling heat exchanger (2100) → Expansion valve (1100) → Expansion valve one-way all sides (1000) ) K port→ I port→ Liquid pipe (35)→ 2nd heat exchanger bypass 3 way side (1050)→ 2nd heat exchanger bypass pipe (200b)→ Heat exchanger switching all sides (900) G port→ H port→ 1st heat exchanger (100) → heat exchanger switching all sides (900) F port → E port → heating and cooling switching all sides (800) B port → D port → suction pipe (45) → first suctioned to the compressor (600) a method using only one heat exchanger 100; and
The compressor (600) → discharge pipe (05,10) → air-conditioning switching four sides (800) A port → C port → 3rd and 4th heat exchangers (300,400) → 3rd and 4th heat exchanger two sides (2310,2410) )→ Liquid pipe (38)→ Expansion valve one-way all sides (1000) L port→ J port→ Liquid pipe (36)→ Receiver (3000)→ Supercooling heat exchanger (2100)→ Expansion valve (1100)→ Expansion valve one-way all sides ( 1000) K port → I port → Liquid pipe (35) → 2nd heat exchanger bypass 3-way side (1050) → 2nd heat exchanger (200) → Heat exchanger switching All sides (900) G port → E port → Air conditioning switching A method of using only one second heat exchanger 200 that is sucked into the four sides 800 port B → port D → suction pipe 45 → compressor 600; and
The first heat exchanger 100 and the heat exchanger switching three-way side 900 and the second heat exchanger 200 and the second heat exchanger bypass three-way side 1050 have the enthalpy size of the air heat source and the geothermal heat source or the water heat source. Accordingly, a system capable of performing the same operation even when the installation positions are changed can be configured;
Composite heat source heat pump system and control method using air heat source and various types of geothermal or water heat sources as an all-round light for heat exchanger switching that adapts to outdoor air enthalpy and heating/cooling load According to claim 1,
The use of the third heat exchanger 300 and the fourth heat exchanger 400 serving as an evaporator in summer and a condenser in winter by using the refrigerant switching four-way side 800 and the outdoor air enthalpy sensor 2000 and high pressure , Low pressure pressure sensors (1900, 1800) and discharge, suction gas temperature sensors (2900, 2800) As a control method by a control logic program,
The third heat exchanger 300 uses an indirect heat exchange method for supplying a fan coil unit or an air conditioner using brine and hot and cold water coils, which are cold and hot heat source transfer fluids.
The fourth heat exchanger 400 uses a method of direct heat exchange by directly expanding the refrigerant and supplying the fan coil unit or air conditioner to the third heat exchanger using brine depending on the type of fan coil unit or air conditioner installed in the room ( 300) or all or one of the fourth heat exchangers 400 using direct expansion of the refrigerant can be selected and applied.
The third heat exchanger 300 or the fourth heat exchanger 400 opens or closes the two sides 2310 and 2410 respectively installed in the heat exchanger 400 according to the need for heating and cooling, and regulates the flow of refrigerant. characterized in that the control is configured to select and use the heat exchanger 300 and the fourth heat exchanger 400;
Composite heat source heat pump system and control method using an air heat source and various geothermal or water heat sources as an all-round light for heat exchanger switching that adapts to the outdoor air enthalpy and heating/cooling load According to claim 1,
After compression in the compressor 600, the refrigerant is discharged as a gas refrigerant in an overheated state and transferred to the cooling/heating switching four-way 800. Between the refrigerant discharge pipe 05 and the discharge pipe 10, the hot water supply is switched between the three-way side 750 and the hot water supply The fifth heat exchanger 500 is installed and the gas refrigerant in an overheated state flows to the fifth heat exchanger 500 by controlling the hot water supply switching three-way side 750 switching.
The fifth heat exchanger 500 produces hot water through heat exchange with a heat transfer medium such as a water supply in which the high-temperature gas refrigerant flowing into an overheated state by switching the three-way side 750 for hot water supply switching, and the produced hot water is installed on one side of the hot water storage tank It is stored in (1300).
The hot water storage tank 1300 has a temperature sensor 1300a on the upper part, a hot water heating electric heater 1300b on the lower part, and a pressure sensor 1800, 1900 or a temperature sensor 2800 in the compressor suction pipe 45 and the discharge pipe 10. ,2900) is installed to control the switching of the hot water supply switching three-way side 750 according to the hot water temperature, the refrigerant pressure and temperature, and the hot water heating electric heater 1300b is connected to the hot water supply switching three-way side 750 switching control as a spare heating element. By operating and using it, the hot water temperature stored in the hot water storage tank 1300 can be constantly maintained.
When it is necessary to adjust the heat exchange amount of the fifth heat exchanger 500 due to an increase in the indoor heating load during hot water production by the fifth heat exchanger 500, the rotation speed of the hot water supply circulation pump 510 is adjusted through a control program. And when it is necessary to stop the heat exchange of the fifth heat exchanger 500, the hot water supply switching three-way side 750 is switched, and the gas refrigerant discharged in an overheated state after compression in the compressor 600 blocks the inflow to the fifth heat exchanger, Hot water supply switching characterized in that the bypass pipe connected to the three-way side 750 is bypassed to smoothly perform indoor heating;
Composite heat source heat pump system and control method using an air heat source and various geothermal or water heat sources as an all-round light for heat exchanger switching that adapts to the outdoor air enthalpy and heating/cooling load 4. The method of claim 3,
The high-pressure liquid refrigerant condensed during cooling in the first heat exchanger 100 or the second heat exchanger 200 or heating or hot water supply in the third heat exchanger 300 or the fourth heat exchanger 400 and the fifth heat exchanger The condensed high-pressure liquid refrigerant is always transferred to the third heat exchanger 300 or the fourth heat exchanger when cooling the low-pressure liquid refrigerant through the supercooling process of the supercooling heat exchanger 2100 and the expansion and throttling process of the expansion valve 1100. In the first heat exchanger 100 or the second heat exchanger 200, the supercooling heat exchanger 2100, the inlet and outlet pipes are connected to the expansion valve one-way all sides 1000 so that the refrigerant flows during cooling or heating. Even if changed, the supercooling heat exchanger 2100 and the expansion valve 1100 can always flow in the same direction, and as another configuration method, four check valves are configured in a bridge shape, and high pressure and high pressure and By connecting the low pressure liquid pipe (35,38) and the inlet pipe of the supercooling heat exchanger (2100) and the outlet pipe of the expansion valve (1100), the opening and closing operation of the supercooling heat exchanger side side (2200) and the expansion throttling of the expansion valve (2300) of the supercooling heat exchanger are performed. Characterized in that it is possible to prevent the compressor 600 from being overheated and damaged as well as to increase energy efficiency by maintaining a constant degree of supercooling and superheating and expansion and throttling of the expansion valve 1100;
Composite heat source heat pump system and control method using an air heat source and various geothermal or water heat sources as an all-round light for heat exchanger switching that adapts to the outdoor air enthalpy and heating/cooling load According to claim 1,
The outdoor air enthalpy sensor 2000 and the high and low pressure pressure sensors 1900 and 1800 and the discharge and intake gas temperature sensors 2900 and 2800 control logic programs are zoned to reduce the load by the indoor thermostat installed in the heating and cooling load space. The third and fourth heat exchangers installed between the inlet pipe 40 and the outlet pipe 38 of the third heat exchanger 300 or the fourth heat exchanger 400 for hot water production for hot water supply in case of need, heating is unnecessary, or in the changing season. The group bypass pipe 1110b and the third and fourth heat exchanger bypass side 1110 and the third heat exchanger side 2310 and the fourth heat exchanger side 2410 are respectively used as opening/closing means of the refrigerant. to produce hot water.
When the third and fourth heat exchanger bypass side 1110 is opened and the third heat exchanger side 2310 and the fourth heat exchanger side side 2410 are closed, the hot water in the fifth heat exchanger 500 is The refrigerant introduced into the storage tank 1300 or liquefied by heat exchange with the stored water supply, etc. is a supercooling action of the supercooling heat exchanger 2100 and a throttling expansion action of the expansion valve 1100 through the third and fourth heat exchanger bypass pipes 1110b. When transferred to the second heat exchanger 200 and the first heat exchanger 100 through By selectively using both or only one of the second heat exchanger 200 and the first heat exchanger 100, the efficiency of use of renewable energy is increased.
In particular, when multiple heat pumps are installed and used for heating and cooling and hot water production, the partially zoned number of heating and cooling heat pumps are used exclusively for hot water supply, and temporarily or temporarily during the day or night for hot water production to produce hot water. characterized in that the operation of hot water facilities such as boilers is unnecessary by doing so;
Composite heat source heat pump system and control method using an air heat source and various geothermal or water heat sources as an all-round light for heat exchanger switching that adapts to the outdoor air enthalpy and heating/cooling load According to claim 1,
As a method of using the first heat exchanger 100 and the second heat exchanger 200 appropriately for heating and cooling loads, the cooling load in summer is about 2.5 times to 3.0 times the heating load in winter. Heat exchanger switching By controlling the switching of the four sides 900, the air heat source first heat exchanger 100 and the second heat exchanger 200 using a geothermal or water heat source are simultaneously used, and in the winter season, the outdoor air 2000 temperature and humidity is lowered. and the heat absorbing load is also reduced, so the heat exchanger switching four sides 900 are switched and controlled to stop the air heat source first heat exchanger 100, and the switching operation of the three sides 1550 for water and the temperature of the heat source temperature sensors 2500 and 2600 Through sensing, only the second heat exchanger 200 using the geothermal source 1400 or the water heat source 1700 is alternately used, or only one of the geothermal source 1400 or the water heat source 1700 is used. therefore
The heat exchange capacity of the second heat exchanger is generally used by installing and using a heat exchanger having a smaller heat exchange capacity compared to the existing method that relies on the total amount of the geothermal heat source 1400 or the water heat source 1700 , so that the second heat exchanger 200 and the geothermal heat characterized in that it is possible to use the geothermal source 1400 or the water heat source 1700 at a lower cost compared to the existing method by significantly reducing the installation and construction capacity of the source 1400 or the water heat source 1700;
Composite heat source heat pump system and control method using an air heat source and various geothermal or water heat sources as an all-round light for heat exchanger switching that adapts to the outdoor air enthalpy and heating/cooling load According to claim 1,
The temperature and humidity sensor 2000 for measuring the outside air temperature and humidity, the high-pressure and low-pressure pressure sensors 1900 and 1800 for measuring the condensing pressure and evaporation pressure of the refrigerant circulating in the device and changing the phase, and the condensing temperature and evaporation of the refrigerant The operation by the discharge and intake gas temperature sensors (2900, 2800) that measure the temperature and the control program
The outdoor air enthalpy data measured by the outdoor temperature and humidity (2000) sensor, pressure and temperature data measured by the refrigerant pressure sensors (1800, 1900) and temperature sensors (2800, 2900), and the control command of the indoor temperature controller are pre-written on the PCB. Four sides (800, 900), three sides (750, 1050), two sides (1110, 2200, 2310) connected to a plurality of heat exchangers (100, 200, 300, 400, 500, 2100) and each bypass pipe by the operation process of the input control program , 2410), various types of magnetic contactors, auxiliary relays, overcurrent relays, flow sensors, and inverters related to multiple operations related to switching, opening and closing, and operation stop of pumps. Air heat source cooling operation and heating operation in heating mode, hot water supply mode, indoor unit zoning state, geothermal or water heat source cooling operation and heating operation, air heat source and geothermal or water heat source cooling operation and heating operation, air heat source hot water supply operation, geothermal source or to have a water heat source hot water supply operation, an air heat source and a geothermal heat source or water heat source hot water supply operation function;
Composite heat source heat pump system and control method using an air heat source and various geothermal or water heat sources as an all-round light for heat exchanger switching that adapts to the outdoor air enthalpy and heating/cooling load

Images