KR101681655B1 - Eco-friendly enery saving mixing cooling system - Google Patents

Eco-friendly enery saving mixing cooling system Download PDF

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Publication number
KR101681655B1
KR101681655B1 KR1020150099832A KR20150099832A KR101681655B1 KR 101681655 B1 KR101681655 B1 KR 101681655B1 KR 1020150099832 A KR1020150099832 A KR 1020150099832A KR 20150099832 A KR20150099832 A KR 20150099832A KR 101681655 B1 KR101681655 B1 KR 101681655B1
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South Korea
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cold water
pipe
cooling
water
temperature
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KR1020150099832A
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Korean (ko)
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유종이
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유종이
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/02—Compression-sorption machines, plants, or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/046—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/04—Refrigerant level
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21154—Temperatures of a compressor or the drive means therefor of an inverter

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The present invention relates to an eco-friendly energy-saving mixed water-cooling type air conditioning system for four seasons, comprising: a glycol cooler; a cooling water supply circulation pipe; a cooling cycle; a cold water coil; a cold water supply circulation pipe; a mixing connector pipe; a cold water direct pipe; a first, second, third and fourth solenoid valves; an indoor temperature sensor; an outdoor temperature sensor; a compressor drive unit; a first and second pumps; and a control unit, and has an advantage of reducing energy consumption by reducing electric power consumption of the air conditioning system.

Description

{ECO-FRIENDLY ENERGY SAVING MIXING COOLING SYSTEM}

The present invention relates to a four-seasons water-cooled cooling system, and more particularly, to a four-seasons environmentally friendly energy-saving type water-cooled cooling system suitable for reducing energy consumption of a cooling system.

Generally, in order to perform indoor cooling, an indoor unit that absorbs heat in a room and supplies cooled cold air, and an outdoor unit that phase-changes a refrigerant gas supplied from the indoor unit to a refrigerant liquid and discharges waste heat of high temperature and high pressure.

The outdoor unit has an air-cooled type that is cooled with air and a water-cooled type that is cooled with water (cooling water) in accordance with the method of cooling the condenser.

The air-cooled condenser is used in a separate operation mode. It is a cooling system that is suitable for an environment with a short piping distance, and a cooling system that is not suitable for a large building because of a problem of efficiency reduction when the piping distance is long.

In the case of a water-cooled condenser, there are an open type cooling tower type and a closed type glycol cooler type according to the means for supplying cooling water.

In the case of using the glycol cooler, it is possible to perform water-cooling in winter, but in this case, the compressor is driven, which causes a lot of power consumption.

In order to solve such a conventional water-cooling type cooling system, a proposed technique is disclosed in Patent Registration No. 10-1321979 (Oct. 28, 2013) filed and registered by the applicant of the present invention, Cooling device "is known.

The above-mentioned " water-cooled cooling apparatus utilizing cooling water "in the above patent registration No. 10-1321979 is a system in which cooling water is cooled by operating a conventional water-cooling type cooling cycle driven by a compressor in summer and cooling water supplied from a glycol cooler in winter So that it is possible to cool by utilizing the existing cooling water without driving the compressor and without a separate cooling driving source, thereby saving energy by not driving the compressor.

However, the technology of the above-mentioned Patent Registration No. 10-1321979 has a technical limitation that proper cooling technique at the outdoor temperature corresponding to spring and autumn time (springtime) is not presented besides summer and winter.

That is, in summer, cooling cycle is used to cool air, and in winter, cooling water is used to cool air.

In addition, there is a problem that in the summer, energy can not be saved because the air is cooled by the operation of a normal cooling cycle in summer.

In addition, a cooling system for four seasons of environment friendly energy conservation, which is filed and filed by the applicant of the present invention and is registered in Patent Registration No. 10-1105518 (Jan. 13, 2012), has been proposed.

The above-mentioned " environment-friendly energy-saving cooling system for four seasons "in accordance with the above-mentioned Patent Registration No. 10-1105518 provides an external cooler that is interlocked with an internal cooler in the outside, and operates when it is lower than normal temperature in the winter season and spring & Thereby reducing energy consumption.

However, the technology disclosed in the above-mentioned Japanese Patent Application No. 10-1105518 has a problem in that the installation cost of the initial cooling system is increased because a dual installation of an indoor cooler and an outdoor cooler is required.

Literature 1. Patent Registration No. 10-1321979 (Notification date: October 28, 2013) Document 2. Patent Registration No. 10-1105518 (Notification Date: Jan. 13, 2012)

The present invention has been made to solve the above problems of the prior art, and an object of the present invention is to provide a four-seasons environmentally friendly energy-saving type water-

First, the mixed connection pipe and the cold water direct pipe are adopted. In the cold period, the cold water (7 ~ 10 ℃) and the water cooled condenser, which come out from the cold water coil, are mixed with the refrigerant gas and the high temperature (30 ~ 35 ℃) The temperature of the cooling water to be returned to the intermediate temperature (15 to 20 ° C) is lowered to the glycol cooler so that the power consumption of the cooling system as a whole can be reduced,

Secondly, by using cooling water of middle temperature (15 ~ 20 ℃) by mixing low temperature (7 ~ 10 ℃) cold water heat exchanged in cold water coil and high temperature (30 ~ 35 ℃) cooling water heat exchanged in water cooling condenser, glycol cooler The cold water is supplied to the cold water directing pipe at a temperature of 6 to 9 ° C. and the energy is directly saved to the evaporator at the intersection of the cold water direct pipe and the cold water coil,

Third, a pure cold water coil is adopted as a indoor unit installed in a room to be cooled and a general evaporator is adopted, and a plate type heat exchanger capable of exchanging heat with cold water and cooling water is adopted in a cooling cycle, To minimize space,

Fourth, cold water of 6 ~ 9 ℃ from glycol cooler is supplied to the evaporator through the cold water direct pipe and the cold water inlet pipe at the time of cold water, and heat exchange is performed in the evaporator as cold water at this low temperature (6-9 ℃) Energy-saving mixed water-cooled air-conditioning system that is suitable for making energy-saving, high-efficiency, and energy-saving four-seasons.

In order to achieve the above object, the four seasons eco-friendly energy-saving mixed water-cooled cooling system according to the present invention comprises: a glycol cooler for supplying cold water required for heat exchange between cooling water for cooling a water-cooled condenser and indoor air of a cold water coil; A cooling water supply pipe for supplying the cooling water supplied from the glycol cooler to the water-cooled condenser; A cooling water supply circulation pipe which is composed of a cooling water return pipe for returning the high temperature cooling water that has been heat-exchanged with the refrigerant gas to the glycol cooler in the water-cooled condenser, supplies the cooling water supplied from the glycol cooler to the water-cooled condenser to condense the water- A water-cooled condenser for condensing the refrigerant gas which has been supplied through the cooling water supply circulation pipe and has passed through the compressor to a refrigerant liquid, and a condenser for condensing the condensed refrigerant in the water-cooled condenser A cooling cycle comprising an expansion valve, an evaporator for exchanging heat between the refrigerant passing through the expansion valve and the cold water coming out from the cold water coil; A cold water coil provided in a room to be cooled and supplied with cold water directly supplied from the glycol cooler or cold water exchanged with a refrigerant liquid in the evaporator and performing heat exchange with indoor air in a room to be cooled to generate cold air to cool the room; A cold water outlet pipe for guiding the cold water coming from the cold water coil to the evaporator; And a cold water supply pipe for supplying cold water that has been heat-exchanged with the refrigerant liquid in the evaporator to the cold water coil, guides the cold water out of the cold water coil to the evaporator, A cold water supply circulation pipe for supplying; In order to mix the cold water discharged from the cold water coils into the high temperature cooling water exchanged with the refrigerant gas in the water-cooled condenser, one side is branched from the cold water outlet pipe of the cold water supply circulation pipe and the other side is connected to the cooling water return pipe A mixing connector which is branched and connected in the pipe; A cold water directing pipe having one side branching at a cooling water supply pipe of the cooling water supply circulation pipe and the other end being connected to the cold water coil to directly supply the cold water of the glycol cooler to the cold water coil; A second electromagnetic valve installed in the cold water outlet pipe of the cold water supply circulation pipe between the bifurcation point and the evaporator; A third solenoid valve installed in the mixing connector; A fourth solenoid valve installed in the cold water direct pipe; A first electromagnetic valve installed in a cooling water supply pipe of the cooling water supply circulation pipe between a cooling water supply pipe of the cooling water supply circulation pipe and a first branch point which is a branch point of the cold water direct connection pipe and a water- An indoor temperature sensor provided in a room to be cooled and measuring an indoor temperature; An outdoor temperature sensor provided outside the outdoor unit for measuring outdoor temperature; A compressor driving unit for driving or stopping the compressor based on the control signal received from the control unit; A first pump installed in the cooling water supply pipe between the first branch point and the glycol cooler to circulate the cooling water through the cooling water supply pipe; A second pump installed in the cold water inlet pipe between the evaporator and the cold water coil to circulate the cold water flowing into the cold water coil through the cold water supply circulation pipe; And a control unit,

When the current indoor temperature is higher than the set room temperature and the current outdoor temperature is the temperature between the first set outdoor temperature and the second set outdoor temperature,

The cooling water discharged from the cold water coil is mixed with the high temperature cooling water exchanged with the refrigerant gas in the water-cooled condenser so that the temperature of the cooling water returned to the glycol cooler is lowered to the middle temperature to be returned to the glycol cooler, To be used for heat exchange of the evaporator of the cooling cycle,

A compressor drive control signal for operating the compressor by driving the compressor to output a compressor drive control signal to the compressor drive unit, and a valve control signal for turning on the first solenoid valve, the third solenoid valve and the fourth solenoid valve, And outputs a valve control signal for turning off the second solenoid valve to the second solenoid valve,

And a controller for outputting a pump drive control signal to the first pump and the second pump to drive the first pump and the second pump.

In the four-seasons environmentally friendly energy-saving type water-cooling type cooling system according to the present invention, the cold water direct pipe intersects the cold water water pipe at a crossing point, and the second electromagnetic valve connects the second connection point of the cold water- And the fourth solenoid valve is disposed between the first branch point of the cold water directing pipe and the cooling water supply pipe and the cold water directing pipe and the cold water outlet pipe of the cold water supply circulation pipe between the intersection of the pipe and the cold water outlet pipe, And when the current indoor temperature is higher than the set room temperature and the present outdoor temperature is lower than the first set outdoor temperature and the second set outdoor temperature, the glycol cooler is connected to the cold water direct pipe A portion of which is supplied to the evaporator along the cold water outlet pipe at the intersection, It characterized in that the directly obtained in that in the cold water coils.

In the four-seasons environmentally friendly energy-saving mixed water-cooling system according to the present invention, when the current indoor temperature is higher than the set indoor temperature and the present outdoor temperature is lower than the first set outdoor temperature, the cold water supplied from the glycol cooler flows into the cold- And the cold water flowing out from the cold water coil is immediately returned to the glycol cooler so that the cold water circulating the cold water between the glycol cooler and the cold water coil is formed so as to stop the operation of the compressor, And outputs a valve control signal for turning off the first solenoid valve and the second solenoid valve to the first and second solenoid valves, And outputs the valve control signal for turning on the four-solenoid valve to the third and fourth solenoid valves, The first pump and the second pump output pump drive stop control signals in order to stop the driving of the pump and the second pump.

In the four-seasons environmentally friendly energy-saving type water-cooled cooling system according to the present invention, when the present room temperature is higher than the set indoor temperature and the present outdoor temperature is higher than the second set outdoor temperature, the cooling water supplied from the glycol cooler flows into the cooling water supply circulation pipe The water-cooled condenser is circulated, the cooling cycle is operated, and the cold water, which is heat-exchanged with the refrigerant in the cooling cycle, is cooled by the heat exchange with the room air in the cold water coil, And outputs a valve control signal for turning on the first solenoid valve and the second solenoid valve to the first and second solenoid valves, and the third solenoid valve and the fourth solenoid valve To the third and fourth solenoid valves, and the first pump and the second pump are opened Characterized in that the output of the first pump and the pump drive control signal to the second pump in order to.

The four seasons eco-friendly energy-saving mixed water-cooling system according to the present invention is characterized in that the evaporator and the water-cooled condenser are plate heat exchangers.

The four seasons eco-friendly energy-saving mixed water-cooled cooling system of the present invention is provided at the rear end of the cooling water return pipe of the glycol cooler or the cooling water supply circulation pipe, detects the temperature of the cooling water flowing into the glycol cooler through the rear end of the cooling water return pipe, A cooling fan for cooling the cooling water of the glycol cooler provided in the glycol cooler, and an operation control unit for calculating an operation voltage and an operation frequency of the cooling fan driving unit based on the inverter control signal input from the control unit, An inverter for outputting the control power to the cooling fan driving unit based on the operation voltage and the operation frequency, and a cooling fan driving unit for driving the cooling fan by the control power received from the inverter, When the temperature of the cooling water received from the cooling water temperature sensor reaches the set temperature Or more is characterized in that hayeoseo converts the received temperature value to the inverter control signal outputted to the inverter.

In the four-seasons environmentally friendly energy-saving mixed water-cooled cooling system according to the present invention, the inverter control signal is used to control an operating frequency of the inverter. For example, the inverter control signal is generated by converting a received temperature value into a pulse width modulation signal, do.

In the four-seasons environmentally friendly energy-saving type water-cooled cooling system of the present invention, the calculation of the operation voltage and the operation frequency of the inverter 191 is calculated in proportion to the cooling water temperature.

The four-seasons eco-friendly energy-saving mixed water-cooled cooling system having the above-described configuration has the following effects.

First, a mixed connection pipe and a cold water direct pipe are adopted. In the cold period, cold water (7 ~ 10 ℃) and a high temperature (30 ~ 35 ℃) cooling water exchanged with a refrigerant gas are mixed in a cold water coil The temperature of the cooling water is lowered to a middle temperature (15 to 20 DEG C), and the cooling water is returned to the glycol cooler. As a result, power consumption of the cooling system as a whole can be reduced.

Secondly, by using cooling water at middle temperature (15 ~ 20 ℃) by mixing cold water of low temperature heat exchanged with room air and high temperature (30 ~ 35 ℃) heat exchanged in condenser, cold water of 6-9 ℃ Water is directly supplied to the evaporator at the intersections of the cold water directing pipes and the cold water is directly supplied to the evaporator at the intersections of the cold water directing pipes and the cold water is directly supplied to the evaporator.

Third, a pure cold water coil is adopted as a indoor unit installed in a room to be cooled and a general evaporator is adopted, and a plate type heat exchanger capable of exchanging heat with cold water and cooling water is adopted in a cooling cycle, The space can be minimized.

Fourth, cold water of 6 ~ 9 ℃ from glycol cooler is supplied to the evaporator through the cold water direct pipe and the cold water inlet pipe at the time of cold water, and heat exchange is performed in the evaporator as cold water at this low temperature (6-9 ℃) There is an effect that it can be increased, and as a result, energy can be saved.

1 is an overall configuration diagram of a four-seasons environmentally friendly energy-saving mixed water-cooled cooling system according to an embodiment of the present invention.
FIG. 2 is a block diagram of a main part of an eco-friendly energy-saving type water-cooled cooling system for four seasons according to an embodiment of the present invention.
3 is a flowchart showing the operation of the cooling system in the summer season.
4 is a flowchart of the operation of the cooling system in the winter season.
Fig. 5 is a flowchart of the operation of the cooling system in the snack.
6 is a graph of correlation between the cooling water temperature for controlling the cooling fan using the inverter 191 and the operating frequency of the inverter.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a four-seasons environmentally friendly energy-saving type water-cooled cooling system according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in the figure, the four-seasons environmentally friendly energy-saving mixed water-cooled cooling system according to an embodiment of the present invention includes a glycol cooler 110, a cooling water supply circulation pipe 111, a cooling cycle 120, a cold water coil 130, The first solenoid valve 161, the second solenoid valve 162, the third solenoid valve 163, and the fourth solenoid valve (second solenoid valve 163), the supply circulation pipe 131, the mixing connection pipe 140, the cold water direct pipe 150, A first pump 171 and a second pump 172, an indoor temperature sensor 181, an outside air temperature sensor 182, a compressor driving unit 183 and a control unit 180 .

The glycol cooler 110 is cooling water for cooling the water-cooled condenser 122 and cold water and cooling water for supplying the cold water necessary for heat exchange with the indoor air.

Here, the terms cold water and cooling water will be described.

The cold water supplied to the water-cooled condenser 122 and the cold water coil 130 in the glycol cooler 110 are all the same, but the cold water supplied to the water-cooled condenser 122 through the cooling water supply circulation pipe 111 is referred to as " Cold water "to the cold water coil 130 through the cold water direct pipe 150 is called" cold water "because the cold water supplied by the glycol cooler 110 is used (or supplied) It is simply a different name.

That is, when the water-cooled condenser 122 is condensed, it is named "cooling water" and when it is directly sent to the cold water coil 130, it is used for heat exchange with the room air in the cold water coil 130. In this case, It is only named, and the substance is the same cold water.

The cooling water supply circulation pipe 111 includes a cooling water supply pipe 111a for supplying the cooling water supplied from the glycol cooler 110 to the water cooled condenser 122 and a high temperature cooling water heat exchanged with the refrigerant gas in the water cooled condenser 122, And a cooling water return pipe 111b for returning to the cooler 110. The pipe is a pipe for guiding the cooling water supplied from the glycol cooler 110 to the water cooled condenser 122 to condense the water cooled condenser 122 .

The portion between the water-cooled condenser 122 and the third branch point N3 is referred to as a cooling water return pipe front end portion 111b 'and the cooling water return pipe 111b is connected between the third branch point N3 and the glycol cooler 110 And the mixing pipe 140 is connected to the high temperature cooling water flowing from the cooling water pipe front end 111b 'at the rear end 111b' 'of the cooling water water pipe as described later, And cold water flowing in from the outside is mixed.

The cooling cycle 120 includes a compressor 121 for compressing the refrigerant gas to a high temperature and a high pressure and a coolant supply pipe 111a for supplying cooling water to the refrigerant passing through the compressor 121, A water-cooled condenser 122 for condensing the gas into the refrigerant liquid, an expansion valve 123 for expanding the refrigerant condensed in the water-cooled condenser 122, a refrigerant liquid passing through the expansion valve 123, And an evaporator 124 for lowering the temperature of the cold water by exchanging heat (the refrigerant liquid is phase-changed into refrigerant gas) with cold water (cold water having a relatively low temperature (for example, 7 to 10 ° C) . The temperature of the cold water, which is heat-exchanged in the evaporator 124 and is received by the cold water coil 130, is 5 to 7 ° C.

Since the cooling cycle 120 in this embodiment is not used for direct heat exchange with room air but is used for lowering the temperature of cold water, the power consumption is actually smaller than a normal cooling cycle, which is one of the features of the present invention .

The evaporator 124 and the water-cooled condenser 122 are preferably constituted by a manifold heat exchanger. As a result, there is an advantage that the dedicated space is reduced.

The cold water coil 130 is one of the components different from the conventional art and is provided in the indoor room R to be cooled. When the current room temperature Trp is equal to or higher than the set room temperature Trs, Or the refrigerant heat-exchanged with the refrigerant liquid in the evaporator 124 and is heat-exchanged with the high-temperature indoor air of the room R to be cooled so as to generate cool air to be supplied to the indoor (R Is cooled.

According to an embodiment of the present invention, a blowing fan (not shown) may be provided adjacent to the cold water coil 130 for forcibly blowing cold air generated by heat exchange with cold water in the cold water coil 130 to the room.

The cold water supply circulation pipe 131 is connected to the evaporator 124 through the cold water coil 130 so that the cold water discharged from the cold water coil 130 is cooled by the cold water coil 130, A cold water outlet pipe 131b and a cold water inlet pipe 131a for supplying cold water exchanged with the refrigerant liquid to the cold water coil 130 in the evaporator 124. The low temperature 7 to 10 ° C) to the evaporator 124 and then the cold water (5 to 7 ° C) exchanged with the refrigerant liquid is supplied to the cold water coil 130 in the evaporator 124.

The mixed connection pipe 140 is one of the essential components of the present invention. In the water-cooled condenser 122, the cold water discharged from the cold water coil 130 to the high-temperature cooling water exchanged with the refrigerant gas One side of the cold water supply circulation pipe 131 is branched and connected at the second branch point N2 of the cold water outlet pipe 131b to mix the cold water to be introduced and the cold water that is exchanged with the indoor air. And the other end is branched and connected at the third branch point N3 of the cooling water return pipe 111b of the cooling water supply circulation pipe 111. [

The connection at the third branch point N3 of the mixing connection pipe 140 and the cooling water return pipe 111b may be connected by a T-shaped connection pipe (not shown) And in any case falls within the technical scope of the present invention.

The connection at the second branch point N2 of the mixing connection pipe 140 and the cold water outlet pipe 131b may be connected by a T-connection pipe (not shown) And in any case falls within the technical scope of the present invention.

One end of the cold water direct pipe 150 is branched at a first branch point N1 of the cooling water supply pipe 111a of the cooling water supply circulation pipe 111 and the other end thereof is connected to the cold water coil 130, ) Is directly supplied to the cold water coil (130).

The connection of the cold water direct connection pipe 150 and the cooling water supply pipe 111a at the first branch point N1 may be connected by a T-connection pipe (not shown) or may be connected by a three- And in any case falls within the technical scope of the present invention.

The first solenoid valve 161 is connected between the first branch point N1 which is a bifurcation point of the cooling water supply pipe 111a of the cooling water supply circulation pipe 111 and the cold water direct pipe 150, (Cooling water) supplied from the glycol cooler 110 is supplied to the cooling water supply circulation pipe 111 or the cold water direct pipe 150, which is installed in the cooling water supply pipe 111a of the circulation pipe 111. [

The second solenoid valve 162 is connected to the second branch point N2 which is a branch point of the mixing connection pipe 140 and the cold water outlet pipe 131b and the evaporator 124, And is installed in the pipe 131b.

The third solenoid valve 163 is installed in the mixing connection pipe 140 so that the cold water flowing out of the cold water coil 130 flows into the cooling water return pipe 111b.

The fourth solenoid valve 164 is installed in the cold water direct pipe 150 and controls the supply of cold water from the glycol cooler 110 to the cold water coil 130.

The room temperature sensor 181 is provided in the room R to be cooled and measures the room temperature and outputs the measured room temperature to the controller 180.

The outdoor temperature sensor 182 is installed outside the outdoor temperature sensor 182 to measure the outdoor temperature and output the measured outdoor temperature to the controller 180.

The compressor driving unit 183 drives the compressor 121 or stops the driving based on the control signal received from the control unit 180.

The first pump 171 is installed in the cooling water supply pipe 111a between the first branch point N1 and the glycol cooler 110 so that the cooling water circulates through the cooling water supply pipe 111a.

The second pump 172 is installed in the cold water inlet pipe 131a between the evaporator 124 and the cold water coil 130 so that the cold water flowing into the cold water coil 130 circulates through the cold water supply circulation pipe 131 .

The first and second pumps 171 and 172 may be provided with a pump driving unit.

The controller 180 controls the respective components according to the outside air temperature value.

The control unit 180 receives the current room temperature Trp from the room temperature sensor 161 and receives the current outside temperature Top from the outside temperature sensor 162. The received current room temperature Trp is set (For example, 5 to 7 占 폚) and the second set outside air temperature Tos2 (for example, 15 占 폚) when the received current outside air temperature Top is equal to or higher than the room temperature Trs (The cold water heat exchanged with the indoor air) and the water-cooled condenser 122 from the cold water coil 130 in the case where the temperature is between [(5 - 7) (For example, 15 to 20 ° C) to be returned to the glycol cooler 110 by mixing the refrigerant gas and the high-temperature cooling water that has been exchanged with the refrigerant gas, and the temperature of the cooling water returned to the glycol cooler 110 is lowered to middle temperature Cooled water is lowered in the glycol cooler 110, and then the water-cooled condenser 122 is condensed and cooled The compressor 121 is driven to output a compressor drive control signal for operating the cooling cycle 120 to the compressor drive unit 183 so as to be used for heat exchange of the evaporator 124 of the cycle 120, Third and fourth solenoid valves 161, 163 and 164 for turning on the valve 161, the third solenoid valve 163 and the fourth solenoid valve 164, and the second solenoid valve 162, A first pump 171 and a second pump 172 are provided for driving the first pump 171 and the second pump 172. The first pump 171 and the second pump 172 are connected to each other by a valve control signal, And outputs a pump drive control signal.

The outdoor air temperature (Top) is lower than the first set outdoor temperature Tos1 (for example, 5 to 7 degrees Celsius) and the second set outdoor temperature (5 to 7) to 15 [deg.] C in the above example), the first, third and fourth solenoid valves 161, 163 and 164 are turned on and the second solenoid valve 162 (30 to 35 占 폚) heat-exchanged in the water-cooled condenser 122 are mixed with the cold water (7 to 10 占 폚) cold water (cold water that has been heat-exchanged with the room air) The temperature of the cooling water returned to the cooler 110 may be lowered to a middle temperature (for example, 15 to 20 ° C) to be returned to the glycol cooler 110. Using the cooling water lowered to middle temperature (for example, 15 to 20 ° C) The cooling water is supplied from the glycol cooler 110 to the cooling water supply pipe 111a and the cold water direct pipe 150, It is possible to reduce power consumption to make the (water), there is an advantage that can save energy in the cooling system as a whole.

In the four-seasons environmentally friendly energy-saving type water-cooling type cooling system according to the embodiment of the present invention, the cold water direct connection pipe 150 intersects with each other at the intersection M1 with the cold water outlet pipe 131b And the second solenoid valve 162 is connected to the second branch point N2 of the mixing pipe 140 and the cold water outlet pipe 131b and the cold water direct pipe 150 and the cold water outlet pipe 131b Water supply pipe 131b of the cold water supply circulation pipe 131 and the fourth solenoid valve 164 is installed between the cold water direct connection pipe 150 and the cooling water supply pipe 111a The control unit 180 is installed in the cold water direct pipe 150 between the first branch point N1 and an intersection M1 between the cold water direct pipe 150 and the cold water water pipe 131b, When the temperature Trp is equal to or higher than the set room temperature Trs (e.g. 20 deg . C ) and the received current outside temperature (Top) is outside the first setting (5 to 7) to 15 [deg.] C in the above example] between the first set temperature (Tos1) (e.g., 5 to 7 DEG C) and the second set ambient temperature (Tos2) The first solenoid valve 161, the third solenoid valve 163, and the fourth solenoid valve 164 (the first solenoid valve 163) are driven by the compressor driving control signal for driving the cooling cycle 120, And outputs a valve control signal for turning off the second solenoid valve 162 to the second solenoid valve 162, and outputs a valve control signal for turning off the second solenoid valve 162 to the first solenoid valve 161, A pump drive control signal is output to the first pump 171 and the second pump 172 to drive the first pump 171 and the second pump 172 so that the glycol cooler 110 can control the cold water direct pipe Some of the cold water supplied through the cold water supply pipe 150 is supplied to the evaporator 124 along the cold water outlet pipe 131b at the intersection M1 and the rest is supplied to the cold water coil 130 at the intersection M1 It is obtained as characterized.

When the glycol cooler 110 supplies cold water at a temperature of 6 to 9 ° C to the cold water direct pipe 150 using cold water at a middle temperature (for example, 15 to 20 ° C) (About 50%) is supplied to the evaporator 124 along the cold water outlet pipe 131b, but the rest (the remaining 50%) is directly supplied to the cold water coil 130 at the crossing point M1 (6 to 9 degrees Celsius) is directly sent to the cold water coil 130 so that it can be used for cooling immediately without being subjected to the cooling cycle 120, thereby saving energy as much as not operating the cooling cycle 120 There is an advantage.

In the four-seasons environmentally-friendly energy-saving mixed water-cooled cooling system according to the embodiment of the present invention, the control unit 180 determines whether the current indoor temperature Trp received from the indoor temperature sensor 161 is lower than the set indoor temperature (For example, 20 占 폚) and the current outdoor temperature Top received from the outdoor temperature sensor 162 is lower than or equal to the first set outdoor temperature Tos1 (e.g., 5 to 7 占 폚), the glycol cooler 110 The cold water supplied from the cold water coil 130 is directly supplied to the cold water coil 130 through the cold water direct pipe 150 and the cold water discharged from the cold water coil 130 is immediately returned to the glycol cooler 110, A compressor driving stop control signal for stopping the operation of the compressor 121 and stopping the operation of the cooling cycle 120 is output to the compressor driving unit 183 in order to form a cold water circulation channel in which cold water circulates between the cold water coils , And outputs a valve control signal for turning off the first solenoid valve 161 and the second solenoid valve 162 to the first and second solenoid valves 161 and 162 so that the third solenoid valve 163 and the fourth solenoid valve 164 To the third and fourth solenoid valves 163 and 164 so as to stop the driving of the first pump 171 and the second pump 172. The first pump 171 and the second pump 172 2 pump 172 to output a pump drive stop control signal.

In the four-seasons environmentally-friendly energy-saving type water-cooled cooling system according to an embodiment of the present invention, the control unit 180 determines whether the current indoor temperature Trp received from the indoor temperature sensor 161 is lower than the set indoor temperature (For example, 20 占 폚) and the current outdoor temperature Top received from the outdoor temperature sensor 162 is equal to or higher than the second set outdoor temperature Tos2 (for example, 15 占 폚), the glycol cooler 110 supplies The water cooled condenser 122 is condensed and the cooling cycle 120 is operated and the cold water heat exchanged with the refrigerant liquid in the evaporator 124 of the cooling cycle 120 is circulated through the cooling water supply circulation pipe 111, A compressor driving control signal for operating the cooling cycle 120 by driving the compressor 121 is outputted to the compressor driving unit 183 so that the indoor R is cooled by the heat exchange with the room air in the coil 130 And the first solenoid valve The second solenoid valve 161 and the second solenoid valve 162 to the first and second solenoid valves 161 and 162 and to turn off the third solenoid valve 163 and the fourth solenoid valve 164 The first pump 171 and the second pump 172 are connected to the third and fourth solenoid valves 163 and 164 so as to drive the first pump 171 and the second pump 172, And outputs a pump drive control signal.

The four-way environmentally friendly energy-saving mixed water-cooled cooling system according to an embodiment of the present invention may further include a temperature setting unit 184 and a display unit 185.

The temperature setting unit 184 is a user interface provided with an input button for setting the room temperature. The display unit 185 displays various information including the current outside temperature, the current room temperature, and the current cooling water temperature to the user .

Next, a description will be given of a configuration in which the cooling fan 192 is controlled by the inverter when the temperature of the cooling water (or cold water) returned to the glycol cooler is equal to or higher than the set temperature.

The four-seasons environmentally friendly energy-saving mixed water-cooled cooling system of the present invention is provided at the rear end 111b "of the cooling water return pipe of the glycol cooler 110 or the cooling water supply circulation pipe 111 and the rear end 111b" A cooling water temperature sensor 183 for sensing the temperature of the cooling water flowing into the glycol cooler 110 and outputting the sensed temperature to the control unit 180, a cooling fan provided in the glycol cooler 110 for cooling the cooling water of the glycol cooler 110, The control unit 180 calculates the operating voltage and the operating frequency (Hz) of the cooling fan driving unit 192 on the basis of the inverter control signal input from the control unit 180. Based on the calculated operating voltage and the calculated operating frequency, And a cooling fan driving unit 192 for driving the cooling fan 110a by the control power received from the inverter 191. The cooling fan driving unit 192 drives the cooling fan driving unit 192 More included Configuration and and the controller 180 when the temperature of the cooling water received from the cooling water temperature sensor 183, not less than the set temperature, the received temperature value, characterized in that the output to the inverter 191 hayeoseo conversion to the drive control signal.

In the four-seasons environmentally friendly energy-saving mixed water-cooled cooling system according to the present invention, the inverter control signal is used to control an operating frequency of the inverter. For example, the inverter control signal is generated by converting a received temperature value into a pulse width modulation signal, do.

In the four-seasons environmentally friendly energy-saving type water-cooled cooling system of the present invention, the calculation of the operation voltage and the operation frequency of the inverter 191 is calculated in proportion to the cooling water temperature.

Hereinafter, the operation of the four-seasons environmentally friendly energy-saving mixed water-cooled cooling system according to one embodiment of the present invention will be described.

First, the cooling operation of the summer season will be described with reference to Fig.

When the current room temperature Trp is equal to or higher than the set room temperature Trs (for example, 20 占 폚) and the current outdoor temperature Top is equal to or higher than the second set outdoor temperature Tos2 (for example, 15 占 폚), the controller 180 controls the water- The cooling water supplied from the glycol cooler 110 is circulated through the cooling water supply circulation pipe 111 to control the cooling cycle 120 to operate and the cold water coil 130 and the evaporator 124) so that cold water circulates through the cold water supply circulation pipe (131).

More specifically, the controller 180 drives the compressor 121 to output a compressor drive control signal for operating the cooling cycle 120 to the compressor driver 183, and the first solenoid valve 161 and the second solenoid valve 162 to the first and second solenoid valves 161 and 162 and outputs the valve control signal for turning off the third solenoid valve 163 and the fourth solenoid valve 164 to the third and fourth solenoid valves 161 and 162 And outputs the pump drive control signal to the first pump 171 and the second pump 172 to drive the first pump 171 and the second pump 172. [

The cooling water is circulated through the cooling water supply circulation pipe 111 to condense the water-cooled condenser 122 and circulate the cooling water while circulating the cooling water. The cold water supply circulation pipe 131 is heat exchanged in the evaporator while the cold water circulates, and is heat-exchanged in the cold water coil.

For example, describe in detail.

In the summer, the outflow temperature of the cooling water supplied from the glycol cooler 110 is about 30 to 35 DEG C, and the cooling water having the outflow temperature of 30 to 35 DEG C is supplied to the water-cooled condenser 122 through the cooling water supply circulation pipe 111 .

Since the condensation temperature of the water-cooled condenser 122 is preferably 35 to 40 ° C, the water-cooled condenser 122 can be cooled using the cooling water of 30 to 35 ° C supplied from the cooling water supply circulation pipe 111.

The evaporator 124 cools cold water of about 7 to 10 ° C, which is relatively low temperature, coming out from the cold water coil 130 by heat exchange with the low-temperature refrigerant liquid to make cold water at about 5 to 7 ° C, The cooled cold water at 5 to 7 ° C is obtained through the cold water inlet pipe 131a and the cold water coil 130.

The cold water coil 130, which is supplied with cold water at about 5 to 7 degrees Celsius through the cold water inlet pipe 131a, takes the heat of the room air by heat exchange with the room air to cool the room R.

Next, the cooling operation of the winter season will be described based on Fig.

When the current indoor temperature Trp is equal to or higher than the set room temperature Trs and the current outdoor temperature Top is equal to or lower than the first set outdoor temperature Tos1 (for example, 5 to 7 ° C), the controller 180 controls the glycol cooler The operation of the cooling cycle 120 is stopped and the circulation of the cold water through the cold water supply circulation pipe 131 is stopped to form the cold water circulation channel in which the cold water circulates between the cooling water coil 110 and the cold water coil 130, The circulation of the cooling water through the supply circulation pipe 111 is stopped and the cold water supplied from the glycol cooler 110 is supplied directly to the cold water coil 130 through the cold water direct connection pipe 150, (Cold water heat-exchanged with the indoor air) is returned to the glycol cooler 110 immediately.

That is, the control unit 180 stops the operation of the compressor 121 to output a compressor operation stop control signal for stopping the operation of the cooling cycle 120 to the compressor drive unit 183, A valve control signal for turning off the second solenoid valve 162 is output to the first and second solenoid valves 161 and 162 and a valve control signal for turning on the third solenoid valve 163 and the fourth solenoid valve 164 To the third and fourth solenoid valves 163 and 164 and to pump the first pump 171 and the second pump 172 by the first pump 171 and the second pump 172 to stop driving the first pump 171 and the second pump 172, And outputs a stop control signal.

For example, we explain it more specifically.

In winter, the outflow temperature of the cold water supplied from the glycol cooler 110 depends on the temperature of the outside air. Therefore, the cold water having a temperature not higher than 5 to 7 ° C and a temperature not higher than 5 to 7 ° C is directly passed through the cold water direct- The cold water coil 130 supplied to the coil 130 and supplied with cold water at 5 to 7 ° C or less sucks the heat of the room air by heat exchange with the room air to cool the room R. [

The cold water of 7 to 10 ° C which is discharged from the cold water coil 130 is obtained by the glycol cooler 110 through the cold water outlet pipe 131b, the mixing pipe 140, and the cooling water return pipe 111b.

Next, the cooling operation of the cooling period will be described with reference to Fig.

If the current room temperature Trp is equal to or higher than the set room temperature Trs and the current outside temperature Top is equal to the first set outside temperature Tos1 (e.g., 5 to 7 占 폚) and the second set outside temperature Tos2 (7 to 10 ° C) in the above example (5 to 7) to 15 ° C], the controller 180 controls the temperature of the cold water (7 to 10 ° C) and the water-cooled condenser The temperature of the cooling water returned to the glycol cooler 110 is lowered to a middle temperature (for example, 15 to 20 ° C) by mixing high temperature (30 to 35 ° C) cooling water heat exchanged with the refrigerant gas in the glycol cooler 110, Cooling condenser 122 is cooled down to a middle temperature (for example, 15 to 20 ° C) and the glycol cooler 110 is cooled down to a temperature of 6 to 9 ° C. Then, in order to condense the water-cooled condenser 122, And the remainder is supplied to the cold water direct pipe 150 and supplied from the glycol cooler 110 through the cold water direct pipe 150 50% in the cold water is supplied to the evaporator 124 along the cold water outlet pipe 131b at the intersection M1 and the remaining 50% is immediately received from the intersection M1 to the cold water coil 130 .

The control unit 180 drives the compressor 121 to output a compressor driving control signal for operating the cooling cycle 120 to the compressor driving unit 183 and the first solenoid valve 161 and the third solenoid valve The first solenoid valve 163 and the fourth solenoid valve 164 to the first, third and fourth solenoid valves 161, 163 and 164 and the valve control signal for turning off the second solenoid valve 162 2 electromagnetic valve 162 and outputs a pump drive control signal to the first pump 171 and the second pump 172 to drive the first pump 171 and the second pump 172. [

For example,

The cooling water supplied from the glycol cooler 110 is at a temperature of about 6 to 9 DEG C and the glycol cooler 110 can maintain such a low water outflow temperature because the cold water coil 130 is out of water (30 to 35 ° C), which has been heat-exchanged with the refrigerant gas, in the water-cooled condenser 122 and the cooled water mixed at the middle temperature (for example, 15 to 20 ° C) (110).

The cooling water having an outlet temperature of 6 to 9 ° C is branched at the first branch point and supplied to the water-cooled condenser 122 through a cooling water supply circulation pipe 111 of a part (for example, 50%) and the remaining 50% ).

The cooling water heat-exchanged in the water-cooled condenser 122 becomes high temperature (30-35 DEG C) and is mixed at the third branch point.

The cold water of 6 to 9 ° C supplied to the cold water directing pipe 150 is branched into each of the evaporator 124 and the cold water coil 130 at the intersection M1.

That is, cold water at 6-9 ° C of the cold water inlet pipe 131a is heat-exchanged at the evaporator 124. The temperature of the cold water in the cold water inlet pipe 131a is 6-9 ° C, which is 7-10 ° C 1 < 0 > C lower than that of the first heat exchanger, so that the heat exchange efficiency is increased correspondingly, and thus energy can be saved accordingly, which is another feature of the present invention.

The cold water at 6 to 9 degrees Celsius supplied to the cold water coil 130 at the crossing point M1 is heat-exchanged with the indoor air together with the cold water of 5 to 7 degrees Celsius in the evaporator 124 to generate cool air.

Next, an operation of controlling the cooling fan by the inverter to lower the temperature of the cooling water that is returned to the glycol cooler or when the temperature of the cold water is increased will be described.

In this case, when the cooling water temperature is higher than the set temperature, the cooling fan 110a of the glycol cooler 110 is operated to lower the temperature of the cooling water, and then the cooling water is supplied. Even when the temperature of the cooling water rises, the cooling water can be continuously cooled by lowering the temperature of the cooling water even when the compressor is not driven, so that energy can be saved.

The operation will be described in detail below.

When the temperature of the cooling water received from the cooling water temperature sensor 183 is equal to or higher than the set temperature, the control unit 180 converts the received temperature value into an inverter control signal and outputs it to the inverter 191.

The inverter 191 that receives the inverter control signal from the control unit 180 calculates the operation voltage and the operation frequency (Hz) of the cooling fan drive unit 192 based on the calculated drive voltage and the operation frequency. Based on the calculated operation voltage and the operation frequency, And outputs power to the cooling fan driving unit 192. [

The cooling fan driving unit 192 is driven by the control power received from the inverter 191 to rotate the cooling fan 110a.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is self-evident to those who have.

Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

110: glycol cooler 110a: glycol fan
111: cooling water supply circulation pipe
111a: Cooling water supply pipe 111b: Cooling water return pipe
120: Cooling cycle 121: Compressor
122: water-cooled condenser 123: expansion valve
124: Evaporator R: Indoor
130: cold water coil 131: cold water supply circulation tube
131b: cold water outlet pipe 131a: cold water inlet pipe
140: Mixed connection pipe 150: Cold water direct connection pipe
N1: First branch point N2: Second branch point
N3: Third branch point M1: Intersection
161: first electromagnetic valve 162: second electromagnetic valve
163: third solenoid valve 164: fourth solenoid valve
171: first pump 172: second pump
180: control unit 181: indoor temperature sensor
182: Outside temperature sensor 183: Cooling water temperature sensor
184: Temperature setting unit 185: Display unit
186: compressor driving unit 191: inverter
192: Cooling fan drive section

Claims (4)

A glycol cooler 110 for supplying cold water required for heat exchange between the cooling water for cooling the water-cooled condenser 122 and the indoor air of the cold water coil 130;
A cooling water supply pipe 111a for supplying the cooling water supplied from the glycol cooler 110 to the water cooled condenser 122 and a cooling water supply pipe 111a for returning the high temperature cooling water exchanged with the refrigerant gas in the water cooled condenser 122 to the glycol cooler 110 A cooling water supply circulation pipe 111 composed of a cooling water return pipe 111b and supplying the cooling water supplied from the glycol cooler 110 to the water-cooled condenser 122 to condense the water-cooled condenser 122;
A water-cooled condenser 122 for receiving the cooling water through the cooling water supply circulation pipe 111 and for condensing the refrigerant gas having passed through the compressor 121 into a refrigerant liquid, a compressor 121 for compressing the refrigerant gas at high temperature and high pressure, An expansion valve 123 for expanding the refrigerant condensed in the water-cooled condenser 122, an evaporator 124 for exchanging heat between the refrigerant having passed through the expansion valve 123 and the cold water coming out from the cold water coil 130, A cooling cycle 120 comprising;
The cooling water is supplied to the indoor room (R) to be cooled and directly supplied from the glycol cooler (110) or the evaporator (124) to the indoor air of the indoor room (R) A cold water coil 130 for cooling the room R;
A cold water outlet pipe 131b for guiding the cold water exiting from the cold water coil 130 to the evaporator 124 and a cold water supply pipe for supplying the cold water exchanged with the refrigerant liquid to the cold water coil 130 in the evaporator 124 And the cold water coil 130 is connected to the evaporator 124. The evaporator 124 is connected to the cold water coil 130 through a pipe 131a for supplying cold water discharged from the cold water coil 130 to the evaporator 124, A cold water supply circulation pipe 131;
In order to mix the cold water discharged from the cold water coil 130 into the high temperature cooling water exchanged with the refrigerant gas in the water-cooled condenser 122, one side is branched from the cold water outlet pipe 131b of the cold water supply circulation pipe 131 And the other end of which is branched and connected to the cooling water supply pipe 111b of the cooling water supply circulation pipe 111;
One side of which is branched from the cooling water supply pipe 111a of the cooling water supply circulation pipe 111 and the other side thereof is connected to the cold water coil 130 to directly supply cold water of the glycol cooler 110 to the cold water coil 130 A cold water direct pipe (150);
A water supply pipe 131b provided in the cold water outlet pipe 131b of the cold water supply circulation pipe 131 between the second branch point N2 which is a branch point of the mixing connection pipe 140 and the cold water outlet pipe 131b and the evaporator 124, 2 solenoid valve 162;
A third solenoid valve 163 installed in the mixing connection pipe 140;
A fourth solenoid valve 164 installed in the cold water direct pipe 150;
The cooling water supply pipe 111a of the cooling water supply circulation pipe 111 and the cooling water supply pipe 111a of the cooling water supply circulation pipe 111 are connected between the first branch point N1 which is a branch point of the cold water direct connection pipe 150 and the water- A first solenoid valve (161) installed in the second solenoid valve;
A room temperature sensor 181 provided in the room R to measure the room temperature;
An outdoor temperature sensor 182 provided outside the outdoor unit for measuring outdoor temperature;
A compressor driving unit 183 for driving or stopping the compressor 121 based on the control signal received from the control unit 180;
A first pump 171 installed in the cooling water supply pipe 111a between the first branch point N1 and the glycol cooler 110 to circulate the cooling water through the cooling water supply pipe 111a;
A second pump 172 installed in the cold water inlet pipe 131a between the evaporator 124 and the cold water coil 130 to circulate the cold water flowing into the cold water coil 130 through the cold water supply circulation pipe 131;
When the current room temperature Trp is equal to or higher than the set room temperature Trs and the current outside temperature Top is the temperature between the first set outside temperature Tos1 and the second set outside temperature Tos2,
The cold water flowing out of the cold water coil 130 and the high temperature cooling water exchanged with the refrigerant gas in the water cooled condenser 122 are mixed to lower the temperature of the cooling water returned to the glycol cooler 110 to be returned to the glycol cooler 110 In order to condense the lowered cooling water to the water-cooled condenser 122 and use it for heat exchange of the evaporator 124 of the cooling cycle 120,
The first solenoid valve 161, the third solenoid valve 163, the fourth solenoid valve 163, and the fourth solenoid valve 163 are connected to the compressor 121. The compressor drive control unit 183 drives the compressor 121 to operate the cooling cycle 120, The valve control signal for turning on the solenoid valve 164 is output to the first, third and fourth solenoid valves 161, 163 and 164 and the valve control signal for turning off the second solenoid valve 162 is outputted to the second solenoid valve 162 A controller 180 for outputting a pump drive control signal to the first pump 171 and the second pump 172 to drive the first pump 171 and the second pump 172;
Wherein the air conditioning system comprises:
The method according to claim 1,
The cold water direct pipe (150) intersects the cold water outlet pipe (131b) at an intersection (M1)
The second solenoid valve (162)
The cold water supply circulation pipe (131) is connected between the second branch point (N2) of the mixing connection pipe (140) and the cold water outlet pipe (131b) and the intersection (M1) between the cold water direct connection pipe (150) 131 in the cold water outlet pipe 131b,
The fourth solenoid valve (164)
The cold water direct connection pipe 150 is connected between the first branch point N1 between the cold water direct pipe 150 and the cooling water pipe 111a and the intersection M1 between the cold water direct pipe 150 and the cold water water pipe 131b. ),
When the current room temperature Trp is equal to or higher than the set room temperature Trs and the current outside temperature Top is the temperature between the first set outside temperature Tos1 and the second set outside temperature Tos2,
A part of the cold water supplied from the glycol cooler 110 through the cold water directing pipe 150 is supplied to the evaporator 124 along the cold water outlet pipe 131b at the intersection M1 and the remainder is supplied to the evaporator 124 at the intersection M1 And the cold water coil (130).
The method according to claim 1,
If the current room temperature Trp is equal to or higher than the set room temperature Trs and the current outside temperature Top is equal to or lower than the first set outside temperature Tos1,
The cold water supplied from the glycol cooler 110 is directly supplied to the cold water coil 130 through the cold water direct pipe 150 and the cold water discharged from the cold water coil 130 is immediately returned to the glycol cooler 110 In order to form a cold water flow path in which cold water circulates between the glycol cooler 110 and the cold water coil,
The compressor driving stop control signal for stopping the operation of the compressor 121 and stopping the operation of the cooling cycle 120 is output to the compressor driving unit 183 and the first solenoid valve 161 and the second solenoid valve 162 to the first and second solenoid valves 161 and 162 and outputs a valve control signal for turning on the third solenoid valve 163 and the fourth solenoid valve 164 to the third, 4 solenoid valves 163 and 164 to stop the driving of the first pump 171 and the second pump 172 by the first pump 171 and the second pump 172 Wherein the air-cooling system is a four-seasons environment-friendly energy-saving mixed-water-cooling system.
The method according to claim 1,
Is provided at the rear end 111b '' of the cooling water return pipe of the glycol cooler 110 or the cooling water supply circulation pipe 111 and flows into the glycol cooler 110 through the cooling water return pipe rear end 111b ' A cooling water temperature sensor 183 for sensing the temperature and outputting it to the control unit 180,
A cooling fan 110a provided in the glycol cooler 110 to cool the cooling water of the glycol cooler,
Based on the inverter control signal input from the control unit 180, the control unit 180 calculates the operation voltage and the operation frequency (Hz) of the cooling fan drive unit 192 and controls the control power based on the calculated operation voltage and the operation frequency 192;
And a cooling fan driving unit 192 for driving the cooling fan 110a by the control power received from the inverter 191,
When the temperature of the cooling water received from the cooling water temperature sensor 183 is equal to or higher than the set temperature, the control unit 180 converts the received temperature value into an inverter control signal and outputs the inverter control signal to the inverter 191. [ Mixed water cooling system.
KR1020150099832A 2015-07-14 2015-07-14 Eco-friendly enery saving mixing cooling system KR101681655B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102486458B1 (en) 2021-09-29 2023-01-09 유종이 Eco hybrid air conditioner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101105518B1 (en) 2011-05-17 2012-01-13 유종이 A cooling system for energy saving green environment of four season
JP2013024510A (en) * 2011-07-25 2013-02-04 Shin Nippon Air Technol Co Ltd Water refrigerant refrigerating system
KR20130036092A (en) * 2012-05-04 2013-04-10 유종이 Water cooling type air conditioning apparatus using cooling water

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101105518B1 (en) 2011-05-17 2012-01-13 유종이 A cooling system for energy saving green environment of four season
JP2013024510A (en) * 2011-07-25 2013-02-04 Shin Nippon Air Technol Co Ltd Water refrigerant refrigerating system
KR20130036092A (en) * 2012-05-04 2013-04-10 유종이 Water cooling type air conditioning apparatus using cooling water
KR101321979B1 (en) 2012-05-04 2013-10-28 김해중 Water Cooling type Air Conditioning Apparatus Using Cooling Water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102486458B1 (en) 2021-09-29 2023-01-09 유종이 Eco hybrid air conditioner

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