KR101248343B1 - Dual type system for refrigerant collection and dual type apparatus for refrigerant collection use for the same - Google Patents

Abstract

PURPOSE: A dual type refrigerant recovering system and a dual type refrigerant recovering utilized for the same are provided to simultaneously liquidize refrigerants by respectively recovering the same from two kinds of refrigerant recovering objects and obtain the compact dual type refrigerant recovering device by separating a storage tank for storing the liquidized refrigerants. CONSTITUTION: A dual type refrigerant recovering system(10) comprises a dual type refrigerant recovering device(100) and external storage tanks. The dual type refrigerant recovering device includes a first refrigerant recovering tank(110), a first compressor(120), a first cooling cycle device(130), a second refrigerant recovering tank(210), a second compressor(220), and a second cooling cycle device(230). The first refrigerant recovering tank recovers a refrigerant along a first refrigerant recovering passage providing a moving passage from a first refrigerant recovering object connected to a first refrigerant recovering port. The first compressor is arranged in the first refrigerant recovering passage, thereby providing pressure required for recovering the refrigerant. The first cooling cycle device is connected to the first refrigerant recovering tank and liquidizes the refrigerant flown into the first refrigerant recovering tank, thereby discharging the refrigerant through the first refrigerant discharging port. The second refrigerant recovering tank recovers a refrigerant along a second refrigerant recovering passage providing a moving passage from a second refrigerant recovering object connected to a second refrigerant recovering port. The second compressor is arranged in the second refrigerant recovering passage, thereby providing pressure required for recovering the refrigerant. The second cooling cycle device is connected to the second refrigerant recovering tank and liquidizes the refrigerant flown into the second refrigerant recovering tank, thereby discharging the refrigerant through the second refrigerant discharging port. [Reference numerals] (AA,BB) Safety valve;

Description

DUAL TYPE SYSTEM FOR REFRIGERANT COLLECTION AND DUAL TYPE APPARATUS FOR REFRIGERANT COLLECTION USE FOR THE SAME}

The present invention relates to a dual-type refrigerant recovery system and a dual-type refrigerant recovery device used therein, and more particularly, it is possible to recover the refrigerant from each of the two types of refrigerant recovery objects and to liquefy both of these refrigerants simultaneously. The present invention relates to a dual type refrigerant recovery system maximizing convenience of use, and a dual type refrigerant recovery device used therefor.

Recently, as small refrigerators such as air conditioners, refrigerators, and water purifiers are widely used for vehicle air conditioners or households, disposal of refrigerants included in these refrigerators has emerged as an important environmental problem.

In particular, chlorofluorocarbon (CFC) refrigerants such as R-11 and R-12 and chlorofluorocarbon (HCFC) refrigerants such as R-123 and R-22 are the main culprit of ozone depletion and global warming. Hydrogen fluorocarbon (HFC) -based refrigerants are defined as global warming materials and need to be strictly managed so as not to be released into the atmosphere by recovering and appropriately treating them.

For example, when disposing of a vehicle, air conditioner refrigerants must be recovered first, but until now, there are very few junkyards equipped with facilities for recovering air conditioner refrigerants of vehicles. Even if there is a facility to recover the refrigerant, the recovery efficiency is very low in the external environment factors, that is, seasonal factors such as summer and high temperature working environment, so the refrigerant is often leaked into the atmosphere during the junk car process.

This problem applies to the disposal of other small refrigerators such as refrigerators and domestic air conditioners.

Therefore, in order to solve such a problem, a refrigerant recovery device capable of efficiently recovering refrigerant of a plurality of small refrigerators such as a vehicle air conditioner, a domestic air conditioner, a refrigerator, a water purifier, and the like has been disclosed.

However, the conventional refrigerant recovery apparatus includes a first refrigerant recovery tank for primarily cooling the refrigerant recovered therein, and a second refrigerant recovery tank for storing the refrigerant cooled in the first refrigerant recovery tank. As the recovery device has become larger, there are inefficient problems in transportation and storage.

In addition, the conventional refrigerant recovery apparatus is a system for storing the refrigerant cooled primarily in the first refrigerant recovery tank in the second refrigerant recovery tank secondaryly, so that the uncooled refrigerant is stored in the second refrigerant recovery tank to supply the refrigerant. There was a problem that can not be stored efficiently. In particular, the refrigerant stored in the second refrigerant recovery tank is not recycled back to the first refrigerant recovery tank, so there is a problem in that the refrigerant cannot be efficiently recovered and stored.

In addition, since the conventional refrigerant recovery apparatus recovers the refrigerant through one refrigerant recovery flow path and then liquefies the refrigerant, there is a problem in that the convenience of use of the refrigerant recovery apparatus is extremely degraded because two kinds of refrigerants cannot be recovered.

One aspect of the present invention is a dual-type refrigerant recovery system and dual-type refrigerant recovery system that can maximize the ease of use, such as can recover each of the refrigerant from the two kinds of refrigerant recovery targets and liquefaction these refrigerants at the same time It is in providing a device.

According to another aspect of the present invention, a dual type refrigerant recovery device for compacting a dual type refrigerant recovery device by separating a storage tank for storing liquefied refrigerant from a dual type refrigerant recovery device for liquefying refrigerant recovered from two kinds of refrigerant recovery objects. It is to provide a type refrigerant recovery system and a dual type refrigerant recovery device used therein.

Another aspect of the present invention is a dual type refrigerant recovery system and dual type used to recover and store the refrigerant efficiently because it can be recycled to the dual type refrigerant recovery device to store the non-liquefied refrigerant out of the refrigerant stored in the storage tank It is providing a refrigerant | coolant recovery apparatus.

Another aspect of the present invention provides a dual-type refrigerant recovery system and a dual-type refrigerant recovery apparatus used to improve efficiency because the recovery and liquefaction of the refrigerant in the refrigerant recovery object can be performed at the same time as the recycle cycle. It is in doing it.

Another aspect of the present invention is to provide a dual type refrigerant recovery system and a dual type refrigerant recovery device used therein so as to provide a secondary storage tank in front of the refrigerant recovery tank so that the refrigerant can be recovered stably and smoothly.

A dual type refrigerant recovery system according to an embodiment of the present invention includes a first refrigerant recovery tank for recovering refrigerant along a first refrigerant recovery flow path that provides a moving path from a first refrigerant recovery object connected to the first refrigerant recovery port; And a first compressor provided in the first refrigerant recovery flow path and providing a pressure for recovering the refrigerant, and connected to the first refrigerant recovery tank to liquefy the refrigerant introduced from the first refrigerant recovery tank through the first refrigerant discharge port. A first refrigerant cycle device for discharging the refrigerant, a second refrigerant recovery tank for recovering the refrigerant along a second refrigerant recovery flow path that provides a movement path from the second refrigerant recovery object connected to the second refrigerant recovery port, and a second A second compressor provided in the refrigerant recovery flow path and providing a pressure for recovering the refrigerant; and a second compressor connected to the second refrigerant recovery tank to liquefy the refrigerant introduced from the second refrigerant recovery tank. A dual type refrigerant recovery device having a second cooling cycle device for discharging the refrigerant through each discharge port; a first refrigerant storage tank and a second refrigerant storage tank respectively disposed outside the dual type refrigerant recovery device; First and second inlet ports connected to the first and second refrigerant discharge ports to supply refrigerant discharged from the first and second refrigerant discharge ports to the first and second refrigerant storage tanks, respectively; First and second outlet ports respectively connected to the refrigerant recovery port and configured to recycle refrigerant, which has not been liquefied in the first and second refrigerant storage tanks, to the dual type refrigerant recovery device through the first and second recirculation flow paths, respectively. External storage tanks; characterized in that it comprises a.

In addition, the end portions of the first and second outlet ports are disposed at positions higher than the ends of the first and second inlet ports, respectively, inside the outer storage tanks.

The first cooling cycle apparatus may further include: a condensing unit having a common compressor connected to the first refrigerant recovery tank to compress the heat exchange refrigerant, and a common condenser for condensing the heat exchange refrigerant via the common compressor; and a first refrigerant recovery. A first evaporator disposed in the tank, the first evaporator for liquefying the gaseous refrigerant introduced into the first refrigerant recovery tank by heat exchange with the gaseous refrigerant, and a first expansion valve provided between the first evaporator and the common condenser of the condensing unit. Characterized in that.

The second cooling cycle apparatus may further include: a condensing unit having a common compressor connected to the second refrigerant recovery tank to compress the heat exchange refrigerant, and a common condenser condensing the heat exchange refrigerant via the common compressor; and a second refrigerant recovery. A second evaporator disposed in the tank, the second evaporator for liquefying the gaseous refrigerant introduced into the second refrigerant recovery tank by heat exchange with the gaseous refrigerant, and a second expansion valve provided between the second evaporator and the common condenser of the condensing unit. Characterized in that.

In addition, the dual-type refrigerant recovery device is the first and the second and the second refrigerant recovery tank is provided at the lower end of the main body and the first and second refrigerant recovery tank in the body to measure the weight of the first and second refrigerant recovery tank, respectively And two load cells and first and second temperature sensing sensors respectively installed at the side ends of the first and second refrigerant recovery tanks inside the main body and measuring the temperature of the first and second refrigerant recovery tanks.

In addition, the dual-type refrigerant recovery device, the first and second refrigerant recovery ports and the first and second compressors respectively provided in the first and second refrigerant recovery flow paths for storing the refrigerant first, respectively; It further comprises a secondary storage tank.

In addition, the dual type refrigerant recovery device includes first and second weight indicators respectively attached to the outer surface of the main body and displaying the measured information on the first and second load cells, and the first and second temperatures attached to the outer surface of the main body. And first and second temperature indicators respectively displaying the information measured by the sensor.

In addition, the dual-type refrigerant recovery device is installed adjacent to the first and second refrigerant recovery port, respectively, the first and second pressure sensor for measuring the pressure of the refrigerant flowing through the first and second refrigerant recovery port, respectively And first and second pressure indicators attached to the outer surface of the body to display the information measured by the first and second pressure sensors, respectively.

In addition, the dual type refrigerant recovery device is characterized in that the first and second refrigerant recovery port is provided adjacent to the first and second sight glass for checking the flow rate of the refrigerant to be recovered, respectively.

A dual type refrigerant recovery device according to an embodiment of the present invention includes a first refrigerant recovery tank for recovering a refrigerant along a first refrigerant recovery flow path that provides a movement path from a first refrigerant recovery object connected to a first refrigerant recovery port; And a first compressor provided in the first refrigerant recovery flow path for providing a pressure for recovering the refrigerant; and a first refrigerant discharge port connected to the first refrigerant recovery tank to liquefy the refrigerant introduced from the first refrigerant recovery tank. A first refrigerant cycle device for discharging the refrigerant through the second refrigerant recovery tank; and a second refrigerant recovery tank configured to recover the refrigerant along a second refrigerant recovery flow path that provides a movement path from the second refrigerant recovery object connected to the second refrigerant recovery port; And a second compressor provided in the second refrigerant recovery flow path to provide a pressure for recovering the refrigerant; and a second compressor connected to the second refrigerant recovery tank to liquefy the refrigerant introduced from the second refrigerant recovery tank. It characterized in that it includes a, a second refrigeration cycle device for discharging the coolant through the sheet discharge port.

Accordingly, in the dual type refrigerant recovery system and the dual type refrigerant recovery apparatus used therein, an aspect of the present invention is to recover each refrigerant from two kinds of refrigerant recovery objects, and to simultaneously liquefy these refrigerants. This can maximize the convenience of use.

In addition, the dual type refrigerant recovery system according to an embodiment of the present invention and the dual type refrigerant recovery apparatus used therein are for storing the liquefied refrigerant in the dual type refrigerant recovery apparatus for liquefying the refrigerant recovered from the two types of refrigerant recovery objects. It is effective to compact the dual-type refrigerant recovery device by separating the storage tank for.

In addition, the dual type refrigerant recovery system according to an embodiment of the present invention and the dual type refrigerant recovery device used therein can efficiently recycle the refrigerant that is not liquefied among the refrigerant stored in the storage tank to the dual type refrigerant recovery device, thereby efficiently storing the refrigerant. There is an effect that can be recovered and stored as.

In addition, the dual type refrigerant recovery system according to an embodiment of the present invention and the dual type refrigerant recovery device used therein may improve the efficiency since the recovery and liquefaction of the refrigerant from the refrigerant recovery object can be performed simultaneously with the recycling cycle. It is effective.

In addition, the dual-type refrigerant recovery system and the dual-type refrigerant recovery apparatus used in accordance with the embodiment of the present invention has an effect that the refrigerant is stable and smoothly recovered by having an auxiliary storage tank in front of the refrigerant recovery tank.

1 is a view showing a dual type refrigerant recovery system according to an embodiment of the present invention.
2 is a front view showing a dual type refrigerant recovery apparatus according to an embodiment of the present invention.
3 is an enlarged view of a portion of the dual type refrigerant recovery device illustrated in FIG. 2.
4 is an enlarged view illustrating a refrigerant recovery tank and a cooling cycle apparatus of the dual type refrigerant recovery device illustrated in FIG. 2.
5 is a view showing the external storage tank shown in FIG.
6 is a view showing a dual type refrigerant recovery system according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a view showing a dual type refrigerant recovery system according to an embodiment of the present invention, Figure 2 is a front view showing a dual type refrigerant recovery apparatus according to an embodiment of the present invention, Figure 3 is shown in Figure 2 FIG. 4 is an enlarged view of a part of the dual type refrigerant recovery device, and FIG. 4 is an enlarged view of the refrigerant recovery tank and the cooling cycle device of the dual type refrigerant recovery device illustrated in FIG. 2.

As shown in FIGS. 1 to 4, the dual type refrigerant recovery system 10 according to an embodiment of the present invention moves from the first refrigerant recovery object 21 connected to the first refrigerant recovery port 151. A first refrigerant recovery tank 110 for recovering the refrigerant along the first refrigerant recovery flow path 150 for providing a path, and a first refrigerant provided in the first refrigerant recovery flow path 150 to provide a pressure for recovering the refrigerant A first cooling cycle connected to the compressor 120 and the first refrigerant recovery tank 110 to liquefy the refrigerant introduced from the first refrigerant recovery tank 110 to discharge the refrigerant through the first refrigerant discharge port 111. A second refrigerant recovery tank for recovering the refrigerant along the second refrigerant recovery flow path 250 that provides a movement path from the second refrigerant recovery object 22 connected to the device 130 and the second refrigerant recovery port 251. 210 and a second refrigerant recovery flow path 250 to provide a pressure for recovering the refrigerant. A second cooling unit connected to the second compressor 220 and the second refrigerant recovery tank 210 to liquefy the refrigerant introduced from the second refrigerant recovery tank 210 to discharge the refrigerant through the second refrigerant discharge port 211. Dual-type refrigerant recovery device 100 having a cycle device 230; and the first refrigerant storage tank 310 and the second refrigerant storage tank 320 are disposed outside the dual-type refrigerant recovery device 100, respectively And a first unit connected to the first and second refrigerant discharge ports 111 and 211 to supply refrigerant discharged from the first and second refrigerant discharge ports 111 and 211 to the first and second refrigerant storage tanks 310 and 320, respectively. It is connected to the first and second inlet ports 311 and 321 and the first and second refrigerant recovery ports 151 and 251 to reach the first and second refrigerant storage tanks 310 and 320 through the first and second recirculation flow paths 323. First and second outlet ports 312 and 322 are provided for recycling the non-liquefied refrigerant to the dual type refrigerant recovery device 100, respectively. It is configured to include; external storage tank (300).

The dual-type refrigerant recovery device 100 according to an embodiment of the present invention, the main body 140 to form an appearance; and the first refrigerant recovery port 151 provided in the body 140 is formed The first refrigerant recovery flow path 150, the second refrigerant recovery flow path 250 having the second refrigerant recovery port 251, the first compressor 120, the second compressor 220, and the first refrigerant discharge port 111 A first refrigerant recovery tank 110 formed, a second refrigerant recovery tank 210 having a second refrigerant discharge port 211, a first cooling cycle device 130, and a second cooling cycle device 230; The first weight indicator 160, the second weight indicator 260, the first pressure indicator 170, the second pressure indicator 270, the first temperature indicator 180, and the second weight indicator 160 are provided on the outer surface of the 140. And a temperature indicator 280.

The main body 140 may form an exterior of the dual type refrigerant recovery device 100 and may have an approximately rectangular parallelepiped shape.

On the inner side of the main body 140, the first refrigerant recovery flow path 150 having the first refrigerant recovery port 151, the first compressor 120, the first refrigerant recovery provided with the first refrigerant discharge port 111 The first cooling cycle apparatus 130 including the tank 110 and the first evaporator 131 for liquefying the refrigerant stored in the first refrigerant recovery tank 110 is sequentially formed.

The first refrigerant recovery tank 110 recovers and stores the first type of refrigerant recovered from the first refrigerant recovery object 21. Here, the first refrigerant recovery tank 110 of the dual-type refrigerant recovery device 100 primarily stores the gaseous phase refrigerant and the liquid phase refrigerant recovered from the first refrigerant recovery object 21, and such a first refrigerant recovery tank 110. ) May be stored by changing the liquid phase refrigerant by liquefying the gaseous phase refrigerant among the gaseous phase refrigerant and the liquid phase refrigerant stored through the first cooling cycle apparatus 130 to be described later.

In the first refrigerant recovery flow path 150, the refrigerant in the first refrigerant recovery object 21 moves to the first refrigerant recovery tank 110 between the first refrigerant recovery object 21 and the first refrigerant recovery tank 110. It provides a route of movement if possible.

The first refrigerant recovery flow path 150 has a plurality of first refrigerant recovery ports 151 formed at one end thereof. The first refrigerant recovery port 151 is connected to the first refrigerant recovery object 21 and the first refrigerant storage tank 310 to recover the refrigerant from the first refrigerant recovery object 21 and liquefy the recycling cycle. To be done at the same time.

The first refrigerant recovery port 151 is a first A refrigerant recovery port 151A, which is detachably connected to the first refrigerant recovery object 21, and an agent that is detachably connected to the first refrigerant storage tank 310. 1B refrigerant recovery port 151B may be included.

The first A refrigerant recovery port 151A may be detachably connected to the first refrigerant recovery object 21, and the first refrigerant recovery port 151 may be connected to the plurality of first refrigerant recovery objects 21 at the same time. Of course, it can be provided in plurality.

The first B refrigerant recovery port 151B recovers the gaseous refrigerant that has not been liquefied among the refrigerant stored in the first refrigerant storage tank 310, recycles it through the first recycle passage 313, and then recycles it to change into a liquid refrigerant. It may be detachably connected with the first refrigerant storage tank 310 to provide a path.

The first refrigerant recovery flow path 150 adjacent to the first and second refrigerant recovery ports 151A and 151B includes a first pressure sensor 152, a first solenoid valve 153, a first sight glass 154, One filter 155 is sequentially arranged.

The first A pressure detecting sensor 152 detects the pressure during the recovery of the refrigerant from the first refrigerant recovery object 21 and the first refrigerant storage tank 310 through the first refrigerant recovery port 151 to automatically recover the refrigerant. Allows you to start or stop the action.

That is, when the first A pressure sensor 152 is out of the preset range, the first A pressure sensor 152 controls the opening and closing of the first A solenoid valve 153 to control the operation of the refrigerant recovery.

For example, when the first refrigerant recovery object 21 and the first A refrigerant recovery port 151A are connected, and the first refrigerant storage tank 310 and the first B refrigerant recovery port 151B are connected, the first A pressure sensing sensor ( When a pressure value higher than a preset pressure value is sensed in 152, the first refrigerant recovery object 21 and the refrigerant in the first refrigerant storage tank 310 are recognized to be present, and the first A solenoid valve 153 is opened to open the refrigerant. When the pressure value is lower than the set pressure value is detected, the refrigerant recovery and recirculation of the first refrigerant recovery object 21 and the first refrigerant storage tank 310 are completed to close the first A solenoid valve 153. .

Therefore, since the dual type refrigerant recovery device 100 according to the embodiment of the present invention automatically opens and closes the first A solenoid valve 153 according to the detected pressure in the first A pressure detection sensor 152, the dual type refrigerant recovery device 100. It is possible to continuously recover the refrigerant from the first refrigerant recovery object 21 and the first refrigerant storage tank 310 without stopping the entire operation of.

Meanwhile, a first filter 155 is interposed between the first A solenoid valve 153 and the first compressor 120 to filter foreign matter contained in the refrigerant.

In addition, a first sight glass 154 is provided between the first filter 155 and the first A solenoid valve 153 to check the flow rate of the refrigerant.

The first compressor 120 may include a first refrigerant recovery tank between the first refrigerant recovery tank 110 and the first refrigerant recovery port 151 from the first refrigerant recovery object 21 and the first refrigerant storage tank 310. When the refrigerant is introduced into 110, the suction of the refrigerant is continued to improve the recovery rate of the refrigerant.

That is, the first compressor 120 forms the inside of the first refrigerant recovery tank 110 in an initial vacuum state and removes refrigerant from the first refrigerant recovery object 21 and the first refrigerant storage tank 310 by the pressure difference. 1 to be introduced into the refrigerant recovery tank (110).

The first cooling cycle device 130 is connected to the first refrigerant recovery tank 110 to exchange heat with the gaseous refrigerant introduced into the first refrigerant recovery tank 110 to liquefy the gaseous refrigerant to the liquid refrigerant.

The first refrigerant recovery tank 110 recovers the refrigerant from the first refrigerant recovery object by the pressure difference. That is, the first refrigerant recovery tank 110 is a first cooling cycle inside the first refrigerant recovery tank 110 after the first refrigerant recovery tank 110 is initialized to a vacuum state by the operation of the first compressor 120. The refrigerant flowing through the first evaporator 131 of the device 130 is cooled.

Therefore, by lowering the pressure inside the first refrigerant recovery tank 110 to collect the refrigerant by the pressure difference between the first refrigerant recovery object 21 and the first refrigerant storage tank 310, to improve the first refrigerant recovery rate The first compressor 120 that maintains the suction is driven to collect the refrigerant.

The first refrigerant recovery tank 110 is provided with a first B pressure detection sensor 112 and the first B solenoid valve 113 so that the pressure inside the first refrigerant recovery tank 110 is preliminary to the first B pressure detection sensor 112. When the detected pressure exceeds the set pressure, the first B solenoid valve 113 is automatically opened to lower the internal pressure.

The first B solenoid valve 113 discharges the remaining gas in the first refrigerant recovery tank 110 to the outside to occupy the space occupied by the refrigerant flowing from the first refrigerant recovery object 21 and the first refrigerant storage tank 310. It can also secure functions.

In addition, the first refrigerant recovery tank 110 is provided with a first temperature sensor 114 to control the operation of the first cooling cycle device 130 when out of the range of the preset value.

In addition, when the first refrigerant recovery tank 110 is provided with a first load cell 115 to fill the first refrigerant recovery tank 110 with a predetermined amount of liquid refrigerant, the first compressor 120 stops driving. 1 refrigerant is transferred to the refrigerant storage tank 310.

The first cooling cycle apparatus 130 includes a condensing unit 190 having a common compressor 191 and a common condenser 192 connected to the first refrigerant recovery tank 110, and one side of the condensing unit 190. It is connected to the compressor 191 and the other side is connected to the common condenser 192 of the condensing unit 190, the first evaporator 131, the first evaporator 131 and the first evaporator 131 to circulate the liquid heat exchange refrigerant therein The first expansion valve 132 is interposed between the common condenser 192 of the densing unit 190.

The common compressor 191 of the condensing unit 190 compresses the heat exchange refrigerant in the first cooling cycle apparatus 130, and the common condenser 192 condenses the heat exchange refrigerant via the common compressor 191, and the first compressor 191. The expansion valve 132 expands the heat exchange refrigerant via the common condenser 192, and the first evaporator 131 enters the first refrigerant recovery tank 110 through the heat exchange refrigerant via the first expansion valve 132. Liquefied the introduced gaseous refrigerant.

That is, the first evaporator 131 is disposed in the first refrigerant recovery tank 110, and is formed by heat exchange between the gaseous refrigerant introduced into the first refrigerant recovery tank 110 and the heat exchange refrigerant in the first evaporator 131. Converts the gaseous refrigerant into a liquid phase.

In the first cooling cycle apparatus 130 according to the embodiment of the present invention, first, when the liquefaction of the gaseous phase refrigerant in the first refrigerant recovery tank 110 is required, the common compressor 191 is driven, the common compressor ( The high temperature, high pressure heat exchange refrigerant compressed at 191 is directed to the common condenser 192 and condensed through the common condenser 192. The condensed heat exchange refrigerant flows into the first expansion valve 132 and expands into a low temperature and low pressure state to liquefy and evaporate the gaseous refrigerant in the first evaporator 131.

In particular, the first evaporator 131 of the first cooling cycle apparatus 130 according to the embodiment of the present invention is disposed in the first refrigerant recovery tank 110 to convert the vapor phase refrigerant recovered by direct heat exchange with the gas phase refrigerant. It is possible to increase the speed, thus facilitating the final refrigerant recovery to the first refrigerant storage tank (310).

Meanwhile, a first filter drier 132 is interposed between the first expansion valve 132 and the common condenser 192 to remove water and foreign matter included in the heat exchange refrigerant, thereby exchanging heat in the first refrigerant recovery tank 110. The efficiency can be improved.

In addition, any portion connecting the first refrigerant recovery channel 150 and the first refrigerant recovery tank 110 may be formed as the first A flexible channel 116, and further, the first refrigerant recovery tank 110 and the first refrigerant recovery channel 110 may be formed of the first refrigerant recovery channel 110. One portion connecting the first refrigerant discharge port 111 may be formed of the first B flexible flow path 117. Thus, by using the first A and the first B flexible flow paths 116 and 117, the free flow path can be formed and the first flow path can be formed. Connection and dismantling of the refrigerant recovery tank 110, the first compressor 120, the first refrigerant recovery flow path 150, and the first refrigerant discharge port 111 may be easily performed.

In addition, a second refrigerant recovery path having a second refrigerant recovery flow path 250, a second compressor 220, and a second refrigerant discharge port 211 having a second refrigerant recovery port 251 formed on the other side of the main body 140. A second cooling cycle apparatus 230 including a tank 210 and a second evaporator 231 for liquefying the refrigerant stored in the second refrigerant recovery tank 210 is provided in sequence.

The second refrigerant recovery tank 210 recovers and stores the second type of refrigerant recovered from the second refrigerant recovery object 22. Here, the second refrigerant recovery tank 210 of the dual-type refrigerant recovery device 100 primarily stores the gaseous phase refrigerant and the liquid phase refrigerant recovered from the second refrigerant recovery object 22, and such a second refrigerant recovery tank 210. ) Liquefies the gaseous refrigerant among the gaseous refrigerants and the liquid phase refrigerant stored through the second cooling cycle apparatus 230 to be described later so that the liquid phase refrigerant can be changed and stored.

In the second refrigerant recovery flow path 250, the refrigerant in the second refrigerant recovery object 22 moves to the second refrigerant recovery tank 210 between the second refrigerant recovery object 22 and the second refrigerant recovery tank 210. It provides a route of movement if possible.

A plurality of second refrigerant recovery ports 251 are formed at one end of the second refrigerant recovery flow path 250. The second refrigerant recovery port 251 is connected to the second refrigerant recovery object 22 and the second refrigerant storage tank 320 to recover the refrigerant from the second refrigerant recovery object 22 and recycle the circulating cycle. To be done at the same time.

The second refrigerant recovery port 251 is a second A refrigerant recovery port 251A which is detachably connected to the second refrigerant recovery object 22, and a second refrigerant storage tank 320 that is detachably connected to the second refrigerant recovery port 251A. 2B refrigerant recovery port 251B.

The second A refrigerant recovery port 251A may be detachably connected to the second refrigerant recovery object 22, and at the same time, the second refrigerant recovery port 251 may be connected to the plurality of second refrigerant recovery objects 22. Of course, it can be provided in plurality.

The second B refrigerant recovery port 251B recovers gaseous refrigerant that has not been liquefied among the refrigerant stored in the second refrigerant storage tank 320 to be described later, recycles the second refrigerant through the second recirculation flow path 323, and then converts the liquid into a liquid refrigerant. The second refrigerant storage tank 320 may be detachably connected to provide a recirculation movement path.

The second refrigerant recovery flow path 250 adjacent to the second and second B refrigerant recovery ports 251A and 251B includes a second A pressure sensor 252, a second A solenoid valve 253, a second site glass 254, Two filters 255 are arranged in sequence.

The second A pressure detecting sensor 252 recovers the refrigerant from the second refrigerant recovery object 22 and the second refrigerant storage tank 320 through the second A refrigerant recovery port 251A and the second B refrigerant recovery port 251B. It senses the pressure and automatically starts or stops the refrigerant recovery operation.

Meanwhile, a second filter 255 is interposed between the second A solenoid valve 253 and the second compressor 220 to filter foreign matter contained in the refrigerant.

In addition, a second sight glass 254 is provided between the second filter 255 and the second A solenoid valve 253 to check the flow rate of the refrigerant.

The second compressor 220 is a second refrigerant recovery tank (2) from the second refrigerant recovery object 22 and the second refrigerant storage tank 320 between the second refrigerant recovery tank 210 and the second refrigerant recovery port 251. When the refrigerant is introduced into the 210, the suction of the refrigerant is continued to improve the recovery rate of the refrigerant.

The second cooling cycle apparatus 230 is connected to the second refrigerant recovery tank 210 to exchange heat with the gaseous refrigerant introduced into the second refrigerant recovery tank 210 to liquefy the gaseous refrigerant to the liquid refrigerant.

The second refrigerant recovery tank 210 recovers the refrigerant from the second refrigerant recovery object by the pressure difference. That is, the second refrigerant recovery tank 210 has a second cooling cycle inside the second refrigerant recovery tank 210 after the first refrigerant recovery tank 110 is initialized to a vacuum state by the operation of the second compressor 220. The refrigerant flowing through the second evaporator 231 of the device 230 is cooled.

The second refrigerant recovery tank 210 is provided with a second B pressure detection sensor 212 and a second B solenoid valve 213 so that the pressure inside the second refrigerant recovery tank 210 may be previously applied to the second B pressure detection sensor 212. When the detected pressure exceeds the set pressure, the second B solenoid valve 213 is automatically opened to lower the internal pressure.

The second B solenoid valve 213 discharges the remaining gas in the second refrigerant recovery tank 210 to the outside, thereby occupying the space occupied by the refrigerant flowing from the second refrigerant recovery object 22 and the second refrigerant storage tank 320. It can also secure functions.

In addition, the second refrigerant recovery tank 210 is provided with a second temperature sensor 214 to control the operation of the second cooling cycle device 230 when out of the range of the preset value.

In addition, the second refrigerant recovery tank 210 is provided with a second load cell 215, when the predetermined amount of liquid refrigerant is filled in the second refrigerant recovery tank 210 to stop the operation of the second compressor 220 2 coolant storage tank 320 to transfer the liquid refrigerant.

The second cooling cycle apparatus 230 includes a condensing unit 190 having a common compressor 191 and a common condenser 192 connected to the second refrigerant recovery tank 210, and one side of the second condensing unit 190. The second evaporator 231 and the second evaporator 231 connected to the compressor 191 and the other side are connected to the common condenser 192 of the condensing unit 190 and circulate the liquid heat exchange refrigerant therein. The second expansion valve 232 is interposed between the common condenser 192 of the densing unit 190.

The common compressor 191 of the condensing unit 190 compresses the heat exchange refrigerant in the second cooling cycle apparatus 230, and the common condenser 192 condenses the heat exchange refrigerant via the common compressor 191, and the second The expansion valve 232 expands the heat exchange refrigerant via the common condenser 192, and the second evaporator 231 enters the second refrigerant recovery tank 210 through the heat exchange refrigerant via the second expansion valve 232. Liquefied the introduced gaseous refrigerant.

In the second cooling cycle apparatus 230 according to the embodiment of the present invention, first, when the liquefaction of the gaseous phase refrigerant in the second refrigerant recovery tank 210 is required, the common compressor 191 is driven, the common compressor ( The high temperature, high pressure heat exchange refrigerant compressed at 191 is directed to the common condenser 192 and condensed through the common condenser 192. The condensed heat exchange refrigerant flows into the second expansion valve 232 and expands into a low temperature and low pressure state to liquefy and evaporate the gaseous refrigerant in the second evaporator 231.

In particular, the second evaporator 231 of the second cooling cycle apparatus 230 according to the embodiment of the present invention is disposed in the second refrigerant recovery tank 210 to convert the vapor phase refrigerant recovered by direct heat exchange with the gas phase refrigerant. The speed can be increased, thus facilitating final refrigerant recovery to the second refrigerant storage tank 320.

On the other hand, a second filter drier 233 is interposed between the second expansion valve 232 and the common condenser 192 to remove the moisture and foreign matter contained in the heat exchange refrigerant to exchange heat in the second refrigerant recovery tank 210. The efficiency can be improved.

In addition, any portion connecting the second refrigerant recovery flow path 250 and the second refrigerant recovery tank 210 may be formed as the second A flexible flow path 216, and further, the second refrigerant recovery tank 210 and the second refrigerant recovery flow path 210 may be formed of the second refrigerant recovery flow path 250. Any part of the second refrigerant discharge port 211 may be formed as the second B flexible flow path 217. Thus, by using the second A and second B flexible flow paths 216 and 217, the free flow path can be formed and the second flow path can be formed. Connection and dismantling of the refrigerant recovery tank 210, the second compressor 220, the second refrigerant recovery flow path 250, and the second refrigerant discharge port 211 may be easily performed.

In addition, a first weight indicator 160, a second weight indicator 260, a first pressure indicator 170, a second pressure indicator 270, a first temperature indicator 180, and a first weight indicator 160 may be formed on an outer surface of the main body 140. 2 temperature indicator 280 is provided.

The first weight indicator 160 is attached to an outer surface of the main body 140 of the dual-type refrigerant recovery device 100 to display the measured information on the first load cell 115.

The second weight indicator 260 is attached to an outer surface of the main body 140 of the dual type refrigerant recovery device 100 to display the measured information on the second load cell 215.

The first temperature indicator 180 is attached to the outer surface of the main body 140 of the dual-type refrigerant recovery device 100 to display information measured by the first temperature sensor 114.

The second temperature indicator 280 is attached to an outer surface of the main body 140 of the dual type refrigerant recovery device 100 to display information measured by the second temperature sensor 214.

The first pressure indicator 170 is attached to an outer surface of the main body 140 of the dual type refrigerant recovery device 100 to display information measured by the first A pressure detecting sensor 152.

The second pressure indicator 270 is attached to an outer surface of the main body 140 of the dual type refrigerant recovery device 100 to display information measured by the second A pressure detecting sensor 252.

Therefore, the dual type refrigerant recovery device 100 according to an embodiment of the present invention includes a first weight indicator 160, a second weight indicator 260, a first pressure indicator 170, and a second pressure indicator 270. The weight of the two refrigerants recovered in the dual-type refrigerant recovery device 100 through the first temperature indicator 180 and the second temperature indicator 280, and the first and second refrigerant recovery tanks 110 and 210. The temperature and the pressure of the refrigerant recovered through the first and second refrigerant recovery flow paths 250 may be grasped in real time so that a user may efficiently recognize the operation state of the dual type refrigerant recovery device 100.

Therefore, the dual-type refrigerant recovery system 10 and the dual-type refrigerant recovery apparatus 100 using the same according to an embodiment of the present invention can recover the refrigerant from the two kinds of refrigerant recovery objects (21, 22), respectively It is possible to maximize the convenience of use, such as to liquefy the refrigerant at the same time.

Meanwhile, reference numeral 100A, which is not described, is a main power switch for supplying power to the dual type refrigerant recovery device, reference numeral 100B is a lamp for confirming power supply of the main power switch, and reference numeral 100C is a dual type refrigerant. It is a buzzer to inform the warning state inside the recovery device.

Further, although described as being the first and the second refrigeration cycle device (130 230) driven by a common condensing unit 190 in the dual-type refrigerant recovery apparatus 100 according to an embodiment of the present invention, the first and a second refrigeration cycle device (130 230) is, of course can be operated as well as the condensing unit 190 of the common individually condensing unit (not shown).

In addition, the external storage tanks 300 which perform a recycling cycle while storing the refrigerant liquefied in the dual type refrigerant recovery device 100 are provided outside the dual type refrigerant recovery device 100. 5 is a view showing external storage tanks according to an embodiment of the present invention.

As illustrated in FIG. 5, the external storage tanks 300 according to an embodiment of the present invention may include first and second refrigerant storage tanks 310 and 320 disposed outside the dual type refrigerant recovery device 100. And first and second refrigerants connected to the first and second refrigerant discharge ports 111 and 211 to supply refrigerant discharged from the first and second refrigerant discharge ports 111 and 211 to the first and second refrigerant storage tanks 310 and 320. Recirculates the refrigerant not connected to the first and second refrigerant storage tanks 310 and 320 to the dual type refrigerant recovery device 100 by being connected to the inflow ports 311 and 321 and the first and second refrigerant recovery ports 151 and 251. First and second outlet ports 312 and 322 for the purpose of operation.

Here, the ends of the first and second outlet ports 312 and 322 are disposed at a position higher than the ends of the first and second inlet ports 311 and 321 in the first and second refrigerant storage tanks 310 and 320. The end portions of the first and second outlet ports 312 and 322 are disposed at positions higher than the ends of the first and second inlet ports 311 and 321 so that the first and second recirculating flow paths 313 and 323 are not naturally liquefied. Allow outflow through

Accordingly, the refrigerant stored in the external storage tanks 300 passes through the first and second refrigerant recovery ports 151 and 251 of the dual-type refrigerant recovery device 100 through the first and second recirculation flow paths 313 and 323 again. By being supplied to the first and second refrigerant recovery tanks 110 and 210 of the dual-type refrigerant recovery device 100, it is possible to recycle a plurality of times to remove the gaseous refrigerant still present in the first and second refrigerant storage tanks 310 and 320. .

This is repeated liquefaction through the first and second evaporators 131 and 231 of the first and second cooling cycle devices 130 and 230 disposed in the first and second refrigerant recovery tanks 110 and 210 of the dual type refrigerant recovery device 100. By doing so, the recovered refrigerant may be stored in the external storage tanks 300 in an optimal state.

In addition, since the recovery of the refrigerant from the first and second refrigerant recovery objects 21 and 22 and the liquefaction process can be performed simultaneously with the recycling cycle, the efficiency of the dual type refrigerant recovery system 10 is improved.

Meanwhile, the first and second refrigerant storage tanks 310 and 320 are detachably connected to the first and second refrigerant recovery tanks 110 and 210, and are separated when the liquid refrigerant is quantitatively filled therein, thereby storing new first and second refrigerants. May be replaced with tanks 310 and 320.

In the dual type refrigerant recovery device 100 according to the embodiment of the present invention, the first and second evaporators 131 and 231 of the first and second cooling cycle devices 130 and 230 are respectively the first and second refrigerant recovery tanks 110 and 210. And the gaseous refrigerant recovered from the first and second refrigerant recovery objects 21 and 22 and the first and second refrigerant storage tanks 310 and 320 into the first and second refrigerant recovery tanks 110 and 210 as liquid refrigerant. It is cooled by the direct cooling method during the conversion to improve the liquefaction rate of the recovered refrigerant.

In addition, discharge paths for discharging the residual gas therein are formed in the first and second refrigerant recovery tanks 110 and 210, so that the first and second refrigerant recovery objects 21 and 22 and the first and second refrigerant storage tanks ( The space occupied by the refrigerant flowing from 310 and 320 is not disturbed by the remaining gas, and the refrigerant may occupy the space occupied by the remaining gas, thereby recovering the recovery rate of the refrigerant recovered into the first and second refrigerant recovery tanks 110 and 210. Make it even better.

Therefore, even though the final refrigerant recovery is performed using the first and second refrigerant recovery tanks 110 and 210 having the same size as in the related art, the filling rate is high and the first and second refrigerant recovery tanks 110 and 210 need to be made larger than necessary. Since it is not compact, it becomes efficient even when carrying and storing the dual type refrigerant recovery device 100.

Another embodiment of the present invention will be described with reference to FIG. The same reference numerals are assigned to the same components as those of the above-described embodiment, and a description thereof will be omitted. 6 is a view showing a dual type refrigerant recovery system according to another embodiment of the present invention.

As shown in FIG. 6, in the dual type refrigerant recovery system 10 ′ according to another embodiment of the present invention, the dual type refrigerant recovery system 10 includes a first refrigerant connected to the first refrigerant recovery port 151. A first refrigerant recovery tank 110 for recovering refrigerant along the first refrigerant recovery flow path 150 that provides a moving path from the recovery object 21 and the first refrigerant recovery flow path 150 are provided to recover the refrigerant. A first compressor (120) providing a pressure for

A first auxiliary storage tank 156 provided in the first refrigerant recovery flow path 150 to primarily store the refrigerant between the first refrigerant recovery port 151 and the first compressor 120 for smooth recovery of the refrigerant; A first cooling cycle device 130 connected to the first refrigerant recovery tank 110 to liquefy the refrigerant introduced from the first refrigerant recovery tank 110 to discharge the refrigerant through the first refrigerant discharge port 111; A second refrigerant recovery tank 210 for recovering the refrigerant along the second refrigerant recovery flow path 250 that provides a movement path from the second refrigerant recovery object 22 connected to the second refrigerant recovery port 251, and The second compressor 220 is provided in the second refrigerant recovery flow path 250 to provide a pressure for recovering the refrigerant, and between the second refrigerant recovery port 251 and the second compressor 220 for smooth recovery of the refrigerant. A first auxiliary storage tank 256 provided in the second refrigerant recovery flow path 250 to primarily store the refrigerant; The second cooling cycle apparatus 230 is connected to the second refrigerant recovery tank 210 to liquefy the refrigerant introduced from the second refrigerant recovery tank 210 to discharge the refrigerant through the second refrigerant discharge port 211. Dual type refrigerant recovery device 100; and a first refrigerant storage tank 310 and the second refrigerant storage tank 320 disposed outside the dual type refrigerant recovery device 100, and the first and First and second inlet ports connected to the second refrigerant discharge ports 111 and 211 to supply refrigerant discharged from the first and second refrigerant discharge ports 111 and 211 to the first and second refrigerant storage tanks 310 and 320, respectively. 311 and 321 and the first and second refrigerant recovery ports 151 and 251 connected to the first and second recirculation flow paths 323 to the refrigerant that has not been liquefied in the first and second refrigerant storage tanks 310 and 320, respectively. External storage with first and second outlet ports 312 and 322 for recycling to dual type refrigerant recovery device 100 It is configured to include; keudeul 300.

The first and second auxiliary storage tanks 156 and 256 of the dual type refrigerant recovery device 100 ′ according to another embodiment of the present invention are respectively the first and second refrigerant recovery objects 21 and 22 due to the pressure difference. By recovering the refrigerant from the refrigerant, the refrigerant is collected by the pressure difference between the first and second refrigerant recovery objects 21 and 22 in which the refrigerant to be recovered is stored after being initialized to a vacuum state by a vacuum pump (not shown).

In particular, the first and second auxiliary storage tanks 156 and 256 may primarily store the refrigerant before the recovered refrigerant flows into the first and second refrigerant recovery tanks 110 and 210, thereby providing the first and second refrigerant recovery tanks 110 and 210. The refrigerant recovery to the furnace is to be made smoothly.

On the other hand, the first and second auxiliary storage tanks 156 and 256 are connected to the first and second oil pumps 157 and 257, respectively, and the oil flowing into the first and second auxiliary storage tanks 156 and 256 by the specific gravity difference. Can be discharged.

Accordingly, in the dual type refrigerant recovery system 10 ′ according to another embodiment of the present invention, the refrigerant is smoothly recovered through the first and second auxiliary storage tanks 156 and 256 so that the first and second refrigerant recovery tanks 110 and 210 can be recovered. In the first and second cooling cycle apparatus (130,230).

As described above, the dual type refrigerant recovery system according to the embodiment of the present invention and the dual type refrigerant recovery apparatus used therein are liquefied in the dual type refrigerant recovery apparatus for liquefying two types of refrigerants recovered from a plurality of refrigerant recovery objects. The dual type refrigerant recovery device can be compacted by separating the storage tank for storing the used refrigerant, and the non-liquefied refrigerants stored in the storage tank can be recycled and stored in the dual type refrigerant recovery device. It can be seen that the basic technical idea is that the refrigerant can be efficiently recovered and stored. Therefore, many modifications may be made by those skilled in the art without departing from the scope and spirit of the present invention.

10,10 '... Dual Type Refrigerant Recovery System 100,100' ... Dual Type Refrigerant Recovery System
110.Refrigerant recovery tank 120 ... First compressor
130 Cooling cycle unit 140 Refrigerant recovery flow path
150 ... Secondary storage tank 160 ... Oil pump
200 ... external storage tank 210 ... refrigerant storage tank
220 ... inflow port 230 ... outflow port
240 ... Recycle Euro

Claims (10)

A first refrigerant recovery tank for recovering refrigerant along a first refrigerant recovery flow path that provides a movement path from a first refrigerant recovery object connected to the first refrigerant recovery port, and the first refrigerant recovery flow path to recover the refrigerant A first compressor providing a pressure for supplying the first refrigerant cycle connected to the first refrigerant recovery tank to liquefy the refrigerant introduced from the first refrigerant recovery tank to discharge the refrigerant through the first refrigerant discharge port; A second refrigerant recovery tank for recovering refrigerant along a second refrigerant recovery flow path that provides a movement path from the second refrigerant recovery object connected to the second refrigerant recovery port, and the second refrigerant recovery flow path to recover the refrigerant A second compressor providing a pressure for supplying the liquid to the second refrigerant recovery tank and liquefying the refrigerant introduced from the second refrigerant recovery tank to supply the refrigerant through the second refrigerant discharge port. Dual type refrigerant recovery device having a second cooling cycle device for discharging; And,
Refrigerants discharged from the first and second refrigerant discharge ports connected to the first refrigerant storage tank and the second refrigerant storage tank respectively disposed outside the dual type refrigerant recovery device, and the first and second refrigerant discharge ports. First and second inlet ports for supplying to the first and second refrigerant storage tanks, respectively, and the first and second refrigerant recovery ports, respectively, through the first and second recirculation flow paths. External storage tanks having first and second outlet ports for recirculating refrigerant that has not been liquefied in a second refrigerant storage tank to the dual type refrigerant recovery device, respectively;
Dual type refrigerant recovery system comprising a. The method of claim 1,
End portions of the first and second outlet ports,
And a dual type refrigerant recovery system, each of which is disposed at a position higher than an end of the first and second inlet ports within the external storage tanks. The method of claim 1,
The first cooling cycle device,
A condensing unit having a common compressor connected to the first refrigerant recovery tank to compress the heat exchange refrigerant, and a common condenser condensing the heat exchange refrigerant via the common compressor;
A first evaporator disposed in the first refrigerant recovery tank, the first evaporator for liquefying the gaseous refrigerant introduced into the first refrigerant recovery tank by heat exchange with the gaseous refrigerant;
And a first expansion valve provided between the first evaporator and the common condenser of the condensing unit. The method of claim 1,
The second cooling cycle device,
A condensing unit having a common compressor connected to the second refrigerant recovery tank to compress the heat exchange refrigerant, and a common condenser condensing the heat exchange refrigerant via the common compressor;
A second evaporator disposed in the second refrigerant recovery tank, the second evaporator for liquefying the gaseous refrigerant introduced into the second refrigerant recovery tank by heat exchange with the gaseous refrigerant;
And a second expansion valve provided between the second evaporator and the common condenser of the condensing unit. The method of claim 2,
The dual type refrigerant recovery device,
The main body forming the appearance,
First and second load cells installed at lower ends of the first and second refrigerant recovery tanks inside the main body, respectively, for measuring weights of the first and second refrigerant recovery tanks;
Dual type, characterized in that the first and second temperature detection sensors are installed at the side ends of the first and second refrigerant recovery tank inside the main body to measure the temperature of the first and second refrigerant recovery tank, respectively. Refrigerant recovery system. The method of claim 1,
The dual type refrigerant recovery device,
And further comprising first and second auxiliary storage tanks respectively provided in the first and second refrigerant recovery flow paths to primarily store refrigerant between the first and second refrigerant recovery ports and the first and second compressors, respectively. Dual type refrigerant recovery system characterized in that. The method of claim 5,
The dual type refrigerant recovery device,
First and second weight indicators respectively attached to an outer surface of the main body and displaying measured information on the first and second load cells;
And a first and second temperature indicators attached to an outer surface of the main body to display information measured by the first and second temperature sensors, respectively. The method of claim 1,
The dual type refrigerant recovery device,
First and second pressure sensing sensors installed adjacent to the first and second refrigerant recovery ports, respectively, and measuring pressures of the refrigerant flowing through the first and second refrigerant recovery ports;
And a first and second pressure indicators attached to an outer surface of the main body and displaying information measured by the first and second pressure sensors, respectively. The method of claim 1,
The dual type refrigerant recovery device,
And a first type and a second site glass for checking a flow rate of the refrigerant to be recovered and installed adjacent to the first and second refrigerant recovery ports, respectively. delete

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