KR20200064385A - A multi-device capable of drying, cold confinement, and refrigerated refrigeration using a dual refrigerant cycle - Google Patents

Abstract

The present invention relates to a multipurpose apparatus for drying, cooling, and heating and freezing and refrigeration using a dual refrigerant cycle. More specifically, as hot water and cold water are produced at the same time through a dual refrigerant cycle, heating, drying, and refrigeration/freezing processes can be performed in accordance with various user purposes. A plurality of users can individually or simultaneously be controlled through a single apparatus. The dual refrigerant cycle enables two refrigerant cycles to always be operated together, while enabling precise temperature control by including an intermediate simultaneous heat exchanger. Therefore, the multipurpose apparatus for drying, cooling, and heating and freezing and refrigeration using a dual refrigerant cycle is capable of enabling precise temperature control while being used for various purposes.

Description

A multi-device capable of drying, cold confinement, and refrigerated refrigeration using a dual refrigerant cycle}

The present invention uses a dual refrigeration cycle, drying and heating and cooling and refrigeration using a dual refrigerant cycle that satisfies various conditions according to the purpose of use and the temperature/humidity of the place of use, and allows drying, cooling, cooling, and refrigeration operations. It relates to a refrigeration multi-device.

A general refrigeration apparatus is a compressor that compresses low and low pressure gas refrigerant evaporated from an evaporator to high temperature and high pressure, and a condenser that condenses the high temperature and high pressure gas refrigerant compressed by the compressor into a liquid refrigerant by exchanging heat with external air or water, In the condenser, the receiver of the liquid heater temporarily storing the liquid refrigerant condensed at high temperature and high pressure, the expansion valve for rapidly expanding the high temperature and high pressure liquid refrigerant supplied from the receiver, and the expansion valve is rapidly expanded to be supplied in a mist state An evaporator that takes heat away from the low-temperature and low-pressure refrigerant by exchanging heat with a heat exchange medium, such as air and water, and is installed inside the above-described receiver to receive the mist refrigerant that has not evaporated from the evaporator. It is composed of a structure having a liquid separator of a liquid heat exchanger to evaporate by exchanging heat with a high-temperature and high-pressure liquid refrigerant stored in a gas.

However, this prior art refrigeration apparatus was capable of producing hot water and indoor heating when the external temperature was -10°C or higher, but in the weather where the external temperature was below -15°C, the evaporation temperature of the refrigerant was lowered and the saturation pressure was lowered. It has been pointed out that there is a disadvantage in that the heating capacity, which is the work to be performed, is reduced, and that the compressor frequently breaks down.

Thus, in order to solve the problems appearing in such a refrigeration apparatus, a heat pump type system using a dual refrigeration cycle having a cascade heat exchanger has been introduced. In the case of such a conventional refrigeration cycle, in order to produce hot water and heat the room, Since it is designed to operate the heat transfer (high temperature side) refrigeration cycle and the heat acquisition (low temperature storage) refrigeration cycle at the same time, it is pointed out that there is a lot of power consumption in the high oil price era these days. That is, even when only one of the high temperature and low temperature is used, and when the load or the operating temperature on the load side does not require low temperature or high temperature, a two-stage compression or dual freezer is inevitably used.

In addition, in order to control the load changing according to the operating conditions, the low temperature side freezer and the high temperature side freezer must be controlled by various safety devices and temperature control devices in each refrigeration cycle, so that the control is complicated and the performance deteriorates. there was.

In addition, the existing two-way refrigeration cycle is used only for a single purpose, there is also a disadvantage that it is not used while operating in multi.

Republic of Korea Registered Patent Publication No. 10-0639104 (October 20, 2006 registered)

The present invention has been devised to solve the above problems, and the object of the present invention is to provide both hot water and cold water at the same time using a dual refrigerant cycle, for floor heating, dryer, and refrigeration/freezing for use. , FCU, etc. can be used simultaneously or separately, and at the same time, it is possible to provide precise temperature/humidity by the user by controlling the precision temperature (humidity) by using a single intermediate simultaneous heat exchanger between binary refrigerant cycles. It is to provide a multi-device for drying, heating and cooling and refrigeration using a dual refrigerant cycle, which is easily controlled.

Other objects and advantages of the present invention will be described below, and will be learned by examples of the present invention. In addition, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

The present invention as a means for solving the above problems,

A binary refrigerant cycle 100 in which the first refrigerant cycle and the second refrigerant cycle are connected to the intermediate simultaneous heat exchanger for simultaneous use as a condenser or an evaporator; A hot water storage tank 13 connected to the first refrigerant cycle to store hot water; An ice storage tank 25 connected to the second refrigerant cycle to store cold water; It is connected to the hot water storage tank 13 and the hot water line (L1), the floor heating unit 200 to heat the building floor; A hot water supply unit connected to the hot water storage tank 13 and a hot water line L1 to perform hot water supply; An FCU 400 connected to the hot water storage tank 13 and a hot water line L1 and connected to the cold water line L2 of the ice storage tank 25 to cool and heat the building; A refrigeration refrigerator 500 connected to the ice storage tank 25 and a cold water line L2, where refrigeration and refrigeration are performed; The hot water storage tank 13 and the ice storage tank 25 are connected to the hot water line L1 and the cold water line L2 at the same time, and the inside temperature and humidity are adjusted according to the drying temperature and humidity in the preset range of the drying object. A dryer 600 for drying; Consisting of, the hot water storage tank 13 and the ice storage tank 25 are selectable to operate simultaneously or individually, in accordance with the purpose of use of each use or the setting range temperature/humidity of the use, and the floor heating part 200 , The hot water supply unit 300, the FCU 400, the freezer 500, the dryer 600 is used in the simultaneous use and individual driving is possible to select and control so that it is possible to select and control.

As described above, according to the present invention, hot and cold water are simultaneously produced using a dual refrigerant cycle, and simultaneously or individually controlled to a plurality of uses according to the purpose of the use, and can be provided in multiple ways.

In addition, the present invention has the effect of moving the hot water or cold water at the same time through a single device, floor heating, dryer, refrigeration/freezing, FCU, etc., and freely controlling according to the temperature/humidity condition range required by each application. .

In addition, the present invention has an effect in that two refrigerant cycles do not need to be driven simultaneously at all times regardless of the purpose of use, so that precise control of temperature/humidity is possible, and that the problem of deterioration in use performance does not occur.

In addition, the present invention has an effect that can be easily and easily controlled at various temperatures using cold water or hot water through the first and second additional lines, the intermediate heat exchanger used simultaneously in the first and second refrigerant cycles.

1 and 2 are views of an embodiment showing a multi-device for drying, heating and cooling and refrigeration using a dual refrigerant cycle according to the present invention.

Before describing the various embodiments of the present invention in detail, it will be appreciated that its application is not limited to the details of the configurations and arrangements of components described in the following detailed description or illustrated in the drawings. The present invention can be implemented and implemented in other embodiments and can be performed in various ways. Also, the device or element orientation (eg "front", "back", "up", "down", "top", "bottom") The expressions and predicates used herein with respect to terms such as “, “left”, “right”, “lateral”, etc. are used only to simplify the description of the present invention, and related devices Or you will see that the element simply indicates or does not mean that it should have a specific direction. Also, terms such as “first” and “second” are used herein and in the appended claims for explanation and are not intended to indicate or mean relative importance or purpose.

The present invention has the following features to achieve the above object.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or lexical meanings, and the inventor appropriately explains the concept of terms in order to explain his or her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Therefore, the configuration shown in the embodiments and drawings described in this specification is only one of the most preferred embodiments of the present invention and does not represent all of the technical spirit of the present invention, and thus can replace them at the time of application. It should be understood that there may be equivalents and variations.

Hereinafter, with reference to Figures 1 and 2 will be described in detail the drying and cooling and refrigeration refrigeration multi-device using a dual refrigerant cycle according to a preferred embodiment of the present invention.

Drying, heating and cooling and refrigeration refrigeration multi-devices using the dual refrigerant cycle according to the present invention include a dual refrigerant cycle (100), a hot water storage tank (13), an ice storage tank (25), a floor heating unit (200), a hot water supply unit, and a FCU (fan coil unit) 400, a freezer 500, and a dryer 600.

The binary refrigerant cycle 100 is intended to store hot and cold water, and is connected to a user-to-be-used connection line, which will be described later, to provide a temperature (and humidity) in a preset range suitable for the purpose of the user.

Of course, each connection line (hot water line (L1), cold water line (L2)) connected to a number of users should be provided with a circulation pump for moving hot water or cold water and a control valve for opening and closing. Whether or not the circulating pump and the control valve are driven and opened or closed can be controlled by a separate control unit so that the temperature (and humidity) can be controlled or selectively controlled individually.

The usage includes, in the present invention, a floor heating unit 200, a hot water supply unit 300, a fan coil unit (FCU) 400, a freezer refrigerator 500, and a dryer 600.

Each of the places of use allows the hot water line L1 or the cold water line L2 or the hot water line L1 and the cold water line L2 to be simultaneously connected, and a single hot water line L1 connected to the hot water storage tank 13 and one end. The plurality of branches are connected to each use, and a single cold water line L2 connected to the ice storage tank 25 and one end is branched into several to have a structure connected to each use.

Of course, it should be understood that each of these applications should be equipped with a temperature/humidity sensor that measures temperature and humidity, and is electrically connected to a control unit that controls valves, pumps, and the like.

The floor heating unit 200 is connected to the above-described hot water storage tank 13 and a hot water line L1 to be connected to a floor where heating of the building floor is performed, and the hot water supply unit 300 is used for using hot water at home or the like. That is, it is connected to the hot water storage tank 13 and the hot water line (L1) to exchange heat, where hot water is provided.

The FCU 400 is connected to a water heat exchanger and a separate circulation pump together with the aforementioned hot water storage tank 13, hot water line L1, cold water line L2, and ice storage tank 25, so that building cooling and heating progress. Wherein, the freezer 500 is connected to the ice storage tank 25 and the cold water line L2 described above, and refrigeration and refrigeration is performed using cold water through heat exchange, and the dryer 600 is a tactic The hot water storage tank 13 and the ice storage tank 25 are simultaneously connected through the hot water line L1 and the cold water line L2 to match the internal temperature and humidity to the preset drying temperature and humidity of various preset drying objects. Let it dry while adjusting. That is, in the case of the dryer 600, since the hot water storage tank 13 and the ice storage tank 25 are connected at the same time, preset drying conditions and operating conditions (dehumidification, drying, etc.) suitable for the drying object according to the drying object, etc. In line, the temperature/humidity of the air is controlled through hot and cold water to blow air into the dryer 600 through the blowing means installed inside the dryer 600, thereby controlling the temperature/humidity inside the dryer 600. It is to be adjusted.

Accordingly, in the present invention, the hot water storage tank 13 and the ice storage tank 25 of the dual refrigerant cycle 100 are operated at the same time or individually, in accordance with the purpose of use and the setting range temperature (and the preset range humidity) of each application. As possible, it is possible to control such that the temperature is adjusted while using hot and cold water alone, or that the temperature of the air or the supplied water is controlled by using hot and cold water at the same time.

The floor heating unit 200, the hot water supply unit 300, the FCU 400, the freezer 500, and the dryer 600 are used in accordance with various embodiments of the user, depending on various embodiments can be simultaneously or individually selected It is possible to control, and various driving is possible.(ex: while drying the object to be dried (ex: dried persimmon, etc.) in the dryer 600, the remaining heat is heated to the FCU 400 of the office, etc.)

The dual refrigerant cycle 100 for this purpose includes a first refrigerant cycle 10, a second refrigerant cycle 20, and an intermediate simultaneous heat exchanger 30.

The first refrigerant cycle 10 is such that hot water having a preset temperature range can be supplied to a place where supply water is used.

To this end, a first compressor 11 that compresses a low-temperature low-pressure gas refrigerant (a first refrigerant P1) into a high-temperature high-pressure state, and condenses the high-temperature high-pressure gas refrigerant that has passed through the first compressor 11 and transfers it to the liquid phase. 1 condenser (13), the first expansion valve (14) that expands the refrigerant that has passed through the first condenser (13) and transfers it to the low-temperature low-pressure liquid, and evaporates the low-temperature low-pressure liquid refrigerant that has passed through the first expansion valve (14). It consists of a first evaporator (15) for transferring to the gaseous state. This refrigerant cycle and a basic binary refrigerant cycle structure using two of these refrigerant cycles are well-known technologies, and detailed descriptions thereof will be omitted.

Thus, after the predetermined second refrigerant P2 circulating the above-mentioned components exchanges heat with the feed water to become hot water, the hot water is stored in the hot water storage tank 13 or used to be used.

In the case of the first evaporator 15 of the first refrigerant cycle 10, the intermediate simultaneous heat exchanger 30 to be described later corresponds to this, and the first refrigerant P1 circulates through the second refrigerant cycle 20 And heat exchanged with the second refrigerant (P2).

The second refrigerant cycle 20 is a second compressor (21), the second condenser (23), the second to transfer heat through the heat exchange to the first refrigerant (P1) of the above-described first refrigerant cycle (10) The preset second refrigerant (P2) circulating the second refrigerant cycle (20) composed of the expansion valve (24) and the ice storage tank (25, (evaporator equivalent)), so as to exchange heat with the first refrigerant (P1) Thus, the first refrigerant cycle 10 is to supply water to the hot water in the preset temperature range (relatively higher than the hot water temperature in the preset range) to be supplied. In the present invention, between the second expansion valve 24 and the second compressor (21), it is provided with an ice storage tank (25) filled with brine (Brine).

As the role of the second condenser 23 in the second refrigerant cycle 20, the above-described intermediate simultaneous heat exchanger 30 is used, and in the intermediate simultaneous heat exchanger 30, the first refrigerant cycle 10 The first refrigerant P1 and the second refrigerant P2 of the second refrigerant cycle 20 are heat exchanged.

In addition, although refrigerants R410a and R134a are used as the first and second refrigerants P1 and P2 in the present invention, this is also a part that can be variously changed according to a user's embodiment.

The intermediate simultaneous heat exchanger 30 is to simultaneously perform the roles of the first evaporator 15 and the second condenser 23 between the aforementioned first and second refrigerant cycles 10 and 20.

The intermediate simultaneous heat exchanger 30, the first and second refrigerant cycles (10, 20) exchanged heat exchanged (water, it is natural that it can be variously changed according to the user's embodiment.) Therefore, it can be circulated separately to the place of use, so that it can be used.

The operating temperature of the intermediate simultaneous heat exchanger 30 influences the performance of each operating temperature of the first and second refrigerant cycles 10 and 20. Accordingly, in the present invention, the first and second subsidiary temperature control is automatically possible. Lines 40 and 50 are provided.

The first auxiliary line 40 is connected to a hot water line circulating in the above-described first refrigerant cycle 10 and connected to an intermediate simultaneous heat exchanger 30, and a first control valve 41 is installed to provide high temperature inside. This is the line through which water flows.

The second auxiliary line 50 connects the ice storage tank 25 installed in the above-described second refrigerant cycle 20 to the intermediate simultaneous heat exchanger 30, and a second control valve 51 is installed to brine the inside. (brine, low temperature PCM) or water flow line.

Thus, when the temperature of the intermediate simultaneous heat exchanger 30 is higher than the preset temperature range, the temperature of the second auxiliary line 50 is circulated to regulate the temperature,

When the intermediate simultaneous heat exchanger 30 has a temperature lower than a preset temperature range, the temperature of the first auxiliary line 40 is circulated to regulate the temperature, so that the temperature is adjusted according to the purpose of use and the hot water temperature provided. The degree of opening and on and off of the first and second control valves 41 and 51 are controlled through the control unit, and temperature fluctuation can be automatically controlled.

In accordance with this structure, in the present invention, the first and second refrigerant cycles 10 and 20 are used at the same time, so that hot water can be supplied to the place of use or depending on the use of the supply water of the place of use, than the hot water. When the relatively low temperature or cold water temperature does not require low temperature water, only the first refrigerant cycle 10 is driven, or only cold water or medium temperature water is required, so that only the second refrigerant cycle 20 is driven.

The first and second refrigerant cycles 10 and 20 can be individually selected and driven to control, so that the first and second refrigerant cycles 10 and 20 are simultaneously driven at the same time to prevent performance degradation and efficiency degradation. will be.

As described above, although the present invention has been described by a limited number of embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following will be described by those skilled in the art to which the present invention pertains. Of course, various modifications and changes can be made within the equal scope of the claims to be described.

10: 1st refrigerant cycle 11: 1st compressor
13: first condenser 14: first expansion valve
15: first evaporator 20: second refrigerant cycle
21: second compressor 23: second compressor
24: second expansion valve 25: ice storage tank
30: middle simultaneous heat exchanger 40: first auxiliary line
41: 1st control valve 50: 2nd auxiliary line
51: second control valve
100: binary refrigerant cycle 200: floor heating
300: hot water supply 400: FCU
500: freezer 600: dryer
L1: Hot water line L2: Cold water line
P1: 1st refrigerant P2: 2nd refrigerant

Claims (5)

A binary refrigerant cycle 100 in which the first refrigerant cycle and the second refrigerant cycle are connected to the intermediate simultaneous heat exchanger for simultaneous use as a condenser or an evaporator;
A hot water storage tank 13 connected to the first refrigerant cycle to store hot water;
An ice storage tank 25 connected to the second refrigerant cycle to store cold water;
It is connected to the hot water storage tank 13 and the hot water line (L1), the floor heating unit 200 is heated to the floor of the building;
A hot water supply unit connected to the hot water storage tank 13 and a hot water line L1 to perform hot water supply;
FCU (400) connected to the hot water storage tank (13) and a hot water line (L1), connected to the ice storage tank (25) and a cold water line (L2), where cooling and heating of a building are performed;
A refrigerating refrigerator 500 connected to the ice storage tank 25 and a cold water line L2, where refrigeration and refrigeration are performed;
The hot water storage tank 13 and the ice storage tank 25 are connected to the hot water line L1 and the cold water line L2 at the same time, and the temperature and humidity inside are adjusted according to the drying temperature and humidity of the preset range of the drying object. A dryer 600 for drying; It consists of,
Depending on the purpose of use of each use or the setting range of use, the temperature/humidity can be selected so that the hot water storage tank 13 and the ice storage tank 25 are operated simultaneously or individually.
Binary refrigerant, characterized in that the floor heating unit (200), hot water supply unit (300), FCU (400), freezer (500), and dryer (600) can be controlled at the same time to enable simultaneous operation and individual driving. Drying, heating and cooling and refrigerated refrigeration multi devices using cycles.
According to claim 1,
The binary refrigerant cycle 100 is
Pre-set agent for circulating the first compressor (11), the first condenser (13), the first expansion valve (14), and the first evaporator (15) so that the supply water can be supplied with hot water in a preset temperature range to the place of use. A first refrigerant cycle 10 in heat exchange with one refrigerant (P1);
A second compressor (21), a second condenser (23), a second expansion valve (24), and an ice storage tank (25) to transfer heat through heat exchange to the first refrigerant (P1) of the first refrigerant cycle (10) 2) to allow the preset second refrigerant P2 circulating) to exchange heat with the first refrigerant P1, so that the supply water from the first refrigerant cycle 10 can be supplied as high temperature water in a preset temperature range. Refrigerant cycle 20;
Between the first and second refrigerant cycle (10, 20), the intermediate simultaneous heat exchanger (30) simultaneously performing the role of the first evaporator (15) and the second condenser (23); It consists of,
The first and second refrigerant cycles 10 and 20 are used at the same time, so that hot water can be supplied to the place of use or depending on the use of the supply water of the place of use,
Only the first refrigerant cycle 10 is driven at a hot water temperature relatively lower than the hot water in the preset temperature range and a cold water temperature higher than the cold water temperature in the preset temperature range, or
When only cold water or medium temperature water is required, only the second refrigerant cycle 20 is driven,
The first and second refrigerant cycles 10 and 20 can be individually controlled to be selectively driven, so that the first and second refrigerant cycles 10 and 20 are simultaneously driven at the same time to prevent performance degradation and efficiency degradation. Drying and cooling and refrigeration refrigeration multi-device using a binary refrigerant cycle, characterized in that.
The method according to claim 1 or 2,
The second refrigerant cycle 20 is
Brine is filled in the ice storage tank 25 between the second expansion valve 24 and the second compressor 21,
The ice storage tank 25 is connected to the intermediate simultaneous heat exchanger 30 through a second auxiliary line 50 in which a second control valve 51 is installed, so that the intermediate simultaneous heat exchanger 30 has a preset temperature. When it is higher than the range, drying and cooling and refrigeration refrigeration multi-device using a dual refrigerant cycle, characterized in that the temperature is adjusted by circulating the cold water of the second auxiliary line (50).
The method according to claim 1 or 2,
The intermediate simultaneous heat exchanger 30 is
Branched from the first refrigerant cycle 10 and connected to the intermediate simultaneous heat exchanger 30, a first auxiliary line 40 equipped with a first control valve 41 is installed,
When the intermediate simultaneous heat exchanger 30 is lower than a preset temperature range, drying, heating and cooling and refrigeration using a dual refrigerant cycle, characterized in that the temperature is regulated by circulating the hot water of the first auxiliary line 40 Multi device.
The method according to claim 1 or 2,
Depending on the hot water supply temperature in use,
First and second auxiliary lines (40, 50) are separately installed in the first and second refrigerant cycles (10, 20) to circulate cold water or hot water in the intermediate simultaneous heat exchanger (30) to increase or decrease the temperature. 1, 2 control valves (41, 51) Opening degree and on, off, drying, air conditioning and refrigeration refrigeration multi-device using a dual refrigerant cycle characterized in that the control.

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