KR101953107B1 - Refrigerant recovery filling system - Google Patents

Abstract

The vehicle air conditioner refrigerant recovery system according to the present invention can be used in a variety of refrigerants in one device without a separate device to empty the piping after the refrigerant is not remaining in the pipe of the refrigerant recovery, there is no residual refrigerant is easy to use, Refrigerant recovery amount for the vehicle number is stored, and the present invention relates to a vehicle air conditioner refrigerant recovery system that can be quantified and easy to manage.

Description

Automotive Air Conditioning Refrigerant Recovery System

The present invention relates to a vehicle air conditioner refrigerant recovery system, it is possible to use a variety of refrigerants in one device without a separate device to empty the piping of the refrigerant recovery unit after the refrigerant recovery, the refrigerant recovery amount for the vehicle number is stored and managed A vehicle air conditioner refrigerant recovery system is easy.

In general, the air conditioner is a device that controls the temperature and humidity of the indoor air in the summer, and the vehicle air conditioner is a cold air generated in the evaporator by circulating in the order of the condenser-expansion valve-evaporator-compressor after the refrigerant is sucked and compressed by the compressor. The interior of the vehicle is cooled down to a predetermined temperature.

At this time, the refrigerant of the vehicle air conditioner has emerged as a problem of environmental pollution, incineration and treatment is inevitable, so a vehicle air conditioner refrigerant recovery device has been developed to recover and reuse the refrigerant. The vehicle air conditioner refrigerant recovery device recovers a refrigerant contained in a vehicle and regenerates the recovered refrigerant.

However, in the conventional refrigerant recovery device, the refrigerant remains in the piping after the recovery of the refrigerant, so that various refrigerants cannot be used, and only the same type of refrigerant is used. Therefore, when using different refrigerants, other refrigerant recovery devices or piping of the refrigerant recovery device are used. There was a problem in that it is inconvenient to use because it must be provided with a separate device to empty.

In addition, in the study of the environment such as the effect of the vehicle air conditioner refrigerant on the environment, information recorded on the recovery amount and charge amount of the refrigerant according to the vehicle number is used. In general, the information of the refrigerant recovery amount and the charge amount according to the vehicle number is recorded and stored in a program such as Excel using an integrated description or a computer. However, these methods were difficult to manage due to the possibility of a calculation mistake occurring or missing in the process of recording information.

Republic of Korea Patent Publication 10-2015-0128637 (2015.11.18)

The present invention has been proposed to solve the above problems, since the refrigerant is not left in the piping after the refrigerant recovery, it is easy to use because it can use a variety of refrigerants in one device without a separate device to empty the piping It is an object of the present invention to provide a vehicle air conditioner refrigerant recovery system that is capable of quantifying the refrigerant recovery amount and storing the refrigerant with respect to the number.

The air conditioner refrigerant recovery system for a vehicle of the present invention includes a reception unit into which vehicle information for recovering refrigerant is input, and a measurement unit connected to the reception unit to receive the information received at the reception unit and transmit the recovered refrigerant recovery amount information to the reception unit. ; The reception unit is provided with a reception device, the reception device is connected to the reception control unit, the reception control unit, the reception input unit for inputting the vehicle's chassis number, and the reception number is connected to the reception control unit and stored the operation program A reception storage unit, a reception display unit connected to the reception control unit and displaying received information, and a reception transmission / reception unit connected to the reception control unit; The measurement unit includes a refrigerant recovery device, a measurement control unit connected to the refrigerant recovery unit, a measurement input unit connected to the measurement control unit, and a measurement display unit connected to the measurement control unit, and the vehicle chassis number input from the reception input unit is measured. Displayed on the display unit; When the refrigerant recovery device is connected to the vehicle and the chassis number displayed on the measurement display is selected through the measurement input unit, and the operation command is input, the refrigerant recovery device is activated to recover the refrigerant in the vehicle air conditioner and recover the amount of the refrigerant to the refrigerant recovery device. Measured by a weight sensor provided, the measured amount of refrigerant recovery is provided with a vehicle air conditioner refrigerant recovery system, characterized in that transmitted to the receiving unit.

In the above description, the refrigerant recovery amount and the chassis number information transmitted to the reception unit are stored in the reception storage unit of the reception apparatus, and the refrigerant recovery amount and the chassis number stored in the reception storage unit are transmitted to the management server through the reception transmission / reception unit. .

The refrigerant recovery device includes a first pipe having a connecting terminal at one end and a first valve, a second pipe having a connecting terminal at one end, and a second valve provided at both ends, and opposite ends and second ends of the first pipe. A third pipe connected to the other end of the pipe, one end of which is connected to one end of the connection portion of the second pipe and the third pipe, and a fourth pipe having a third valve, and one end of which is connected to the other end of the fourth pipe, A fifth pipe connected to the waste oil separator on the other end, a sixth pipe connected to the waste oil separator on the other end, and a seventh pipe connected to the water filter on the other end, and a seventh pipe connected to the moisture filter on the other end and connected to the compressor; An eighth pipe connected to the compressor at one end, a ninth pipe connected to the other end of the eighth pipe, and one end connected to the other end of the ninth pipe and the other end connected to a gas-liquid separator, and provided with a fourth valve. A tenth pipe and one end of the gas-liquid separator The other end connected to the eleventh pipe connected to the cooling pipe provided in the waste oil separator, one end of the twelfth pipe connected to the cooling pipe, and one end connected to the other end of the twelfth pipe and provided with a fifth valve. A thirteenth pipe, one end of which is connected to the other end of the thirteenth pipe and the other end of which is connected to the first recovery tank, and one end of which is connected to the gas-liquid separator, and the other end of which is connected to the compressor, and the sixth valve is provided. A fifteenth pipe, one end of which is connected to a connection part of the eighth pipe and a ninth pipe, and one end of which is connected to the other end of the sixteenth pipe, and the other end of which is connected to a connection part of the thirteenth pipe and the fourteenth pipe; And a seventeenth pipe provided with a seventh valve, one end connected to a waste oil separator, an eighteenth pipe provided with an eighth valve, and one end connected to the other end of the eighteenth pipe, and the other end connected to a waste oil tank. 19 pipes, one end of the first pipe and the third pipe A 20th pipe connected to the other end of the connection part and provided with a ninth valve, one end of which is connected to the other end of the 20th pipe and the other end of the 21st pipe connected to a vacuum pump, and one end of the 20th pipe and the 21st pipe of the A twenty-second pipe connected to a connection part and the other end connected to a connection part of the ninth pipe and a tenth pipe and having a tenth valve, one end of a twenty-third pipe connected to a vacuum pump, and one end of the twenty-third pipe The other end is connected to the connecting portion of the fourth pipe and the fifth pipe and the twenty-fourth pipe is provided with an eleventh valve, one end is connected to the connection portion of the 23rd pipe and the 24th pipe and the other end is the 18th pipe And a 25 th pipe connected to a connection part of the 19 th pipe; The compressor is operated to recover the refrigerant.

In the above, the second recovery tank is further provided; One end is connected to the connection portion of the twelfth pipe and the thirteenth pipe and the twenty-sixth pipe provided with the twelfth valve is connected to the other end of the twenty-sixth pipe and the other end is connected to the connection of the sixteenth pipe and the seventeenth pipe. A twenty-seventh pipe connected to the thirteenth valve, one end of which is connected to a connection part of the twenty-sixth pipe and the twenty-seventh pipe, and the other end of the twenty-eighth pipe connected to the second recovery tank; The twelfth valve and the thirteenth valve may be connected to a control unit.

The vehicle air conditioner refrigerant recovery system according to the present invention can be used in a variety of refrigerants in one device without a separate device to empty the piping after the refrigerant is not remaining in the pipe of the refrigerant recovery, there is no residual refrigerant is easy to use, Refrigerant recovery amount is stored for the vehicle number, so that the refrigerant recovery amount can be quantified and easy to manage.

1 illustrates a configuration of a vehicle air conditioner refrigerant recovery system according to the present invention,
2 shows the configuration of a receiving apparatus according to the present invention,
3 is a flowchart illustrating a process of the air conditioner refrigerant recovery system for a vehicle according to the present invention;
Figure 4 is a schematic diagram showing a refrigerant recovery device according to the present invention,
5 is a schematic diagram illustrating a first recovery step of a refrigerant recovery method using a refrigerant recovery apparatus according to the present invention;
6 is a schematic view illustrating a second recovery step of the refrigerant recovery method using the refrigerant recovery apparatus according to the present invention,
7 is a schematic view illustrating a first pipe emptying step of the refrigerant recovery method using the refrigerant recovery device according to the present invention;
8 is a schematic view illustrating a suction step of the second pipe emptying step of the refrigerant recovery method using the refrigerant recovery device according to the present invention;
9 is a schematic diagram illustrating a discharge step of the second pipe emptying step of the refrigerant recovery method using the refrigerant recovery device according to the present invention;
10 is a flowchart illustrating a refrigerant recovery method using a refrigerant recovery device according to the present invention.

Hereinafter, a vehicle air conditioner refrigerant recovery system according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the configuration of a vehicle air conditioner refrigerant recovery system according to the present invention, Figure 2 is a view showing the configuration of the receiving apparatus according to the present invention, Figure 3 is a process of the air conditioner refrigerant recovery system for the car according to the present invention 4 is a schematic view showing a refrigerant recovery device according to the present invention, Figure 5 is a view for explaining a first recovery step of the refrigerant recovery method using a refrigerant recovery device according to the present invention. 6 is a schematic view illustrating a second recovery step of a refrigerant recovery method using a refrigerant recovery device according to the present invention, and FIG. 7 is a schematic diagram of a refrigerant recovery method using a refrigerant recovery device according to the present invention. 1 is a schematic view illustrating a pipe emptying step, and FIG. 8 is a suction step of the second pipe emptying step of the refrigerant recovery method using the refrigerant recovery device according to the present invention. 9 is a schematic view for explaining, Figure 9 is a schematic view for explaining the discharge step of the second pipe emptying step of the refrigerant recovery method using the refrigerant recovery device according to the present invention, Figure 10 is a refrigerant recovery according to the present invention It is a flowchart showing the refrigerant recovery method using the apparatus.

The air conditioner refrigerant recovery system for a vehicle of the present invention provides a system in which the air conditioner refrigerant of the vehicle is recovered when the vehicle chassis number of the vehicle connected to the refrigerant recovery device is input and the information of the recovered refrigerant recovery amount is stored together with the chassis number.

As shown in FIG. 1 and FIG. 2, the vehicle air conditioner refrigerant recovery system according to the present invention is connected to the reception unit 2000 and the reception unit 2000 into which the vehicle information for recovering the refrigerant is input and to the reception unit 2000. The measurement unit 1000 receives the received information and transmits the recovered refrigerant recovery amount information to the reception unit 2000.

The reception unit 2000 is provided with a reception device 2100. The reception apparatus 2100 includes a reception control unit 2110, a reception input unit 2130, a reception storage unit 2140, a reception display unit 2120, and a reception transmission / reception unit 2150.

The reception input unit 2130 is connected to the reception control unit 2110 and is provided so that a vehicle number of the vehicle V can be input. The reception input unit 2130 may include an operation switch to control the operation of the reception control unit 2110. The reception input unit 2130 may input vehicle information such as a vehicle license plate as well as a vehicle number and may be used for vehicle management.

The reception storage unit 2140 is connected to the reception control unit 2110 and stores the vehicle identification number information and the operation program input through the reception input unit 2130. In addition, the refrigerant recovery amount information for the chassis number transmitted from the measurement unit 1000 is stored.

The reception display unit 2120 is connected to the reception control unit 2110 and received information is displayed. The reception display unit 2120 displays the operation of the reception control unit 2110 and the input chassis number and the refrigerant recovery amount.

The reception transmitter / receiver 2150 is connected to the reception controller 2110 and provided. The reception transmitter / receiver 2150 may transmit the refrigerant recovery amount and the chassis number information stored in the reception storage 2140 to a management server. The measured refrigerant recovery amount is transmitted to the reception unit 2000 together with the chassis number information. Refrigerant recovery information for the chassis number sent to the management server is an easy data to study environmental problems.

The measurement unit 1000 includes a refrigerant recovery device for recovering refrigerant and measuring a recovered amount of refrigerant, a measurement control unit 1100, a measurement input unit 1300, and a measurement display unit 1200.

The measurement control unit 1110 is connected to the receiving device 2100 receives the chassis number and transmits the recovered refrigerant recovery information. The measurement control unit 1110 is connected to the refrigerant recovery device, the measurement input unit 1300 and the measurement display unit 1200 to control.

The vehicle identification number transmitted from the reception device 2100 is displayed on the measurement display unit 1200. In addition, the amount of refrigerant recovery measured by the refrigerant recovery device is displayed on the measurement display unit 1200 together with the chassis number. The measurement display unit 1200 may display an operation of the measurement control unit 1110.

The measurement input unit 1300 is provided with a switch or the like to enable selection of operation. The user checks the vehicle identification number displayed on the measurement display unit 1200 and selects whether to operate. The measurement input unit 1300 may be provided to select a chassis number displayed on the measurement display unit 1200. When the chassis number is selected in the measurement input unit 1300, an operation command is input from the measurement control unit 1110 to operate the refrigerant recovery device.

The measurement storage unit 1400 stores the chassis number transmitted from the reception device 2100 and the refrigerant recovery amount information measured by the refrigerant recovery device. The measurement storage unit 1400 may store the refrigerant recovery amount information for the chassis number.

The refrigerant recovery device is connected to the vehicle (V) to recover the air conditioner refrigerant of the vehicle (V). The coolant recovery device is provided with weight sensors 801 and 801a to measure the amount of recovered refrigerant.

As shown in FIG. 4, the refrigerant recovery device includes a hollow recovery device body (RS), a pipe part, a valve part, a control part, a compressor 300, a waste oil separator 400, and a water filter. 500, a gas-liquid separator 600, a waste oil tank 700, a recovery tank, and a vacuum pump 900.

The control unit is connected to the valve unit, the compressor 300, the vacuum pump 900, and the weight sensors (801,801a) provided in the recovery tank is controlled in accordance with the progress.

The pipe portion is composed of a plurality of pipes. The pipe portion may include a first pipe 210, a second pipe 230, a third pipe 250, a fourth pipe 290, a fifth pipe 410, a sixth pipe 430, and the like. , The seventh pipe 510, the eighth pipe 310, the ninth pipe 330, the tenth pipe 370, the eleventh pipe 610, the twelfth pipe 490, 13 pipe 810, 14 pipe (830), 15 pipe (630), 16 pipe 350, 17 pipe (850), 18 pipe (450), 19 pipe 460, 20th pipe 270, 21st pipe 280, 22nd pipe 970, 23rd pipe 910, 24th pipe 930, 25th pipe 950 ), The 26th pipe 870, the 27th pipe 890, and the 28th pipe 880.

The valve portion is composed of a plurality of valves. The valve forming the valve unit may be a solenoid valve. The valve unit is connected to the control unit and operated according to a command of the control unit. The valve unit includes a first valve 211, a second valve 231, a third valve 291, a fourth valve 371, a fifth valve 811, a sixth valve 631, , Seventh valve 851, eighth valve 451, ninth valve 271 and tenth valve 971, eleventh valve 931, twelfth valve 871 and thirteenth valve. 891. The valve unit is provided with one or more pressure gauges connected to the liver pipe. The controller is connected to the pressure gauge and controlled according to the pressure change of the pipe measured by the pressure gauge.

The first pipe 210 is provided with a connection terminal at one end. The first valve 211 is provided in the first pipe 210. The connection terminal of the first pipe 210 is connected to the vehicle air conditioner.

The second pipe 230 is provided with a connection terminal at one end. The second valve 231 is provided in the second pipe 230. The connection terminal of the second pipe 230 is connected to the vehicle air conditioner.

Both ends of the third pipe 250 are connected to the other end of the first pipe 210 and the other end of the second pipe 230, respectively.

One end of the fourth pipe 290 is connected to one end of a connection portion of the second pipe 230 and the third pipe 250. The third valve 291 is provided on the fourth pipe 290.

The fifth pipe 410 is provided with one end connected to the other end of the fourth pipe 290 and the other end is connected to the waste oil separator 400.

The sixth pipe 430 is provided with one end connected to the waste oil separator 400 and the other end connected to the water filter 500.

The seventh pipe 510 is provided with one end connected to the moisture filter 500 and the other end connected to the compressor 300.

One end of the eighth pipe 310 is connected to the compressor 300.

One end of the ninth pipe 330 is connected to the other end of the eighth pipe 310.

The tenth pipe 370 has one end connected to the other end of the ninth pipe 330 and the other end connected to the gas-liquid separator 600. The fourth valve 371 is provided in the tenth pipe 370.

The eleventh pipe 610 is provided with one end connected to the gas-liquid separator 600 and the other end connected to a cooling tube provided in the waste oil separator 400.

The twelfth pipe 490 is provided with one end connected to the cooling pipe.

The thirteenth pipe 810 is provided with one end connected to the other end of the twelfth pipe 490. The fifth valve 810 is provided in the thirteenth pipe 810.

One end of the fourteenth pipe 830 is connected to the other end of the thirteenth pipe 810 and the other end thereof is connected to the first recovery tank 800.

The fifteenth pipe 630 is provided with one end connected to the gas-liquid separator 600 and the other end connected to the compressor 300. The sixth valve 631 is provided in the fifteenth pipe 630.

One end of the sixteenth pipe 350 is connected to the connection portion between the eighth pipe 310 and the ninth pipe 330.

One end of the seventeenth pipe 850 is connected to the other end of the sixteenth pipe 350 and the other end is connected to the connection portion of the thirteenth pipe 810 and the fourteenth pipe 830. A seventh valve 851 is provided on the seventeenth pipe 850.

The eighteenth pipe 450 is provided with one end connected to the waste oil separator 400. An eighth valve 451 is provided on the eighteenth pipe 450.

One end of the nineteenth pipe 460 is connected to the other end of the eighteenth pipe 450 and the other end thereof is connected to the waste oil tank 700.

The 20th pipe 270 is provided with one end connected to the other end of the connection portion of the first pipe 210 and the third pipe (250). A ninth valve 271 is provided in the twentieth piping 270.

One end of the twenty-first pipe 280 is connected to the other end of the twentieth pipe 270 and the other end is connected to the vacuum pump 900.

One end of the twenty-second pipe 970 is connected to the connection portion of the twenty pipe 270 and the twenty-first pipe 280 and the other end is connected to the connection of the ninth pipe 330 and the tenth pipe 370 It is provided. A tenth valve 971 is provided at the twenty-second pipe 970.

One end of the twenty-third pipe 910 is connected to the vacuum pump 900.

One end of the twenty-fourth pipe 930 is connected to the other end of the twenty-third pipe 910, and the other end thereof is connected to the connection portion of the fourth pipe 290 and the fifth pipe 410. An eleventh valve 931 is provided at the twenty-fourth pipe 930.

One end of the twenty-fifth pipe 950 is connected to the connection portion of the twenty-third pipe 910 and the twenty-fourth pipe 930, and the other end thereof is connected to the connection of the eighteenth pipe 450 and the nineteenth pipe 460. It is provided.

One end of the twenty sixth pipe 870 is connected to a connection portion between the twelfth pipe 490 and the thirteenth pipe 810. A twelfth valve 871 is provided in the twenty sixth pipe 870.

One end of the twenty-seventh pipe 890 is connected to the other end of the twenty-sixth pipe 870 and the other end thereof is connected to the connection portion of the sixteenth pipe 350 and the seventeenth pipe 850. A thirteenth valve 891 is provided at the twenty-seventh pipe 890.

The twenty-eighth pipe 880 has one end connected to the connection portion of the 26th pipe 870 and the 27th pipe 890, and the other end is connected to the second recovery tank 800a.

The waste oil separator 400 is provided as a hollow body. The fifth pipe 410, the sixth pipe 430, and the eighteenth pipe 450 are connected to the waste oil separator 400. The oil sucked from the vehicle air conditioner flows into the waste oil separator 400 through the fifth pipe 410. The oil introduced from the waste oil separator 400 is separated into waste oil and a refrigerant. The separated waste oil is accumulated in the waste oil separator 400, and the separated refrigerant is moved to the sixth pipe 430. A cooling tube is provided inside the waste oil separator 400.

An eleventh pipe 610 and a twelfth pipe 490 are connected to the cooling pipe. The cooling tube is formed in a tubular body and provided in a spiral shape. As the heat passes through the waste oil separator 400 through the cooling pipe 270, the temperature of the refrigerant decreases.

The sixth pipe 430 and the seventh pipe 510 are connected to the moisture filter 500. Moisture of the refrigerant is sucked from the moisture filter 500.

The seventh pipe 510, the eighth pipe 310, and the fifteenth pipe 630 are connected to the compressor 300. The refrigerant in the compressor 300 is in a high pressure state, the oil and the refrigerant is easily separated from the gas-liquid separator 600.

The tenth pipe 370, the eleventh pipe 610, and the fifteenth pipe 630 are connected to the gas-liquid separator 600. The refrigerant introduced into the gas-liquid separator 600 separates a small amount of oil remaining in the refrigerant.

The nineteenth pipe 460 is connected to the waste oil tank 700. The waste oil accumulated in the waste oil separator 400 is recovered to the waste oil tank 700. A weight sensor is provided in the waste oil tank 700 so that the weight of the waste oil tank 700 may be measured.

The recovery tank includes a first recovery tank 800 and a second recovery tank 800a. The fourteenth pipe 830 is connected to the first recovery tank 800. The first recovery tank 800 collects a refrigerant having a lower temperature due to the cooling pipe. A weight sensor 801 is provided in the first recovery tank 800 to measure the weight of the first recovery tank 800. The recovery amount of the refrigerant excluding the weight of the first recovery tank 800 emptied from the measured weight is transmitted to the measurement storage unit 1400.

The twenty eighth pipe 880 is connected to the second recovery tank 800a. The second recovery tank 800a collects a refrigerant having a lower temperature due to the cooling pipe. A weight sensor 801a is provided in the second recovery tank 800a to measure the weight of the second recovery tank 800a. Refrigerant recovery amount excluding the weight of the second recovery tank 800a emptied from the measured weight is transmitted to the measurement storage unit 1400.

The twenty-first pipe 280 and the twenty-third pipe 910 are connected to the vacuum pump 900. When the vacuum pump 900 is operated, refrigerant is sucked in.

3 and 5 to 10 will be described the process of the vehicle air conditioner refrigerant recovery system of the present invention.

As shown in FIG. 3, the process of the vehicle air conditioner refrigerant recovery system includes a reception step (ST-310), a chassis number input step (ST-320), a first transmission step (ST-330), and a chassis number. The selection step ST-340, the refrigerant recovery step ST-350, the second transfer step ST-360, and the storage step ST-370 are performed.

In the reception step ST-310, the vehicle V is connected to the refrigerant recovery device of the measurement unit 1000 and accepted. The measurement display unit 1200 and the reception display unit 2120 may display a state in which the vehicle V is connected to the refrigerant recovery device.

In the vehicle identification number input step ST-320, the vehicle identification number of the vehicle V is input through the reception input unit 2130 of the reception unit 2000. The chassis number of the vehicle V connected to the refrigerant recovery device is input. The input vehicle number is stored in the reception storage unit 2140.

In the first transmission step ST-330, the chassis number stored in the reception storage unit 2140 is transmitted to the measurement control unit 1100 of the measurement unit 1000. The transmitted vehicle number is stored in the measurement storage unit 1400. In addition, the vehicle identification number transmitted to the measurement control unit 1100 is displayed through the measurement display unit 1200.

In the vehicle number selection step ST-340, the vehicle number transmitted to the measurement control unit 1100 is displayed through the measurement display unit 1200. In the step number selection step (ST-340), the user inputs whether the operation is performed by checking the vehicle number displayed on the measurement display unit 1200. When the operation is input through the measurement input unit 1200, the refrigerant recovery device is operated.

In the refrigerant recovery step ST-350, the refrigerant recovery device is operated to recover the air conditioner refrigerant of the vehicle. In the refrigerant recovery step ST-350, the refrigerant recovery method using the refrigerant recovery device includes a first recovery step ST-110, a second recovery step ST-120, and a first recovery step as shown in FIG. Pipe emptying step (ST-130), and the second pipe emptying step (ST-140).

In order to recover the refrigerant contained in the vehicle air conditioner, the first pipe 210 and the second pipe 230 are connected to the vehicle air conditioner through a connection terminal. One recovery tank in which the refrigerant is to be recovered is selected from the first recovery tank 800 and the second recovery tank 800a. The control unit is controlled according to the first recovery tank 800 and the second recovery tank 800a.

5 and 10, in the first recovery step ST-110, the compressor 300 is operated to recover the refrigerant.

In the first recovery step (ST-110) in which the first recovery tank 800 is selected, the first valve 211, the second valve 231, the third valve 291, and the fourth valve 371 from the control unit. And the fifth valve 811 is opened and the remaining valves are controlled to operate the compressor 300 in a closed state.

In the first recovery step (ST-110) in which the second recovery tank 800a is selected, the first valve 211, the second valve 231, the third valve 291, and the fourth valve 371 from the control unit. ) And the twelfth valve 871 and the remaining valve is controlled to operate the compressor 300 in a closed state.

The control unit operates the compressor 300 after opening and closing each valve according to the recovery tank, and the refrigerant contained in the vehicle air conditioner is sucked through the first pipe 210 and the second pipe 230 connected to the vehicle air conditioner ( ST-111).

The sucked refrigerant flows into the waste oil separator 400 through the third pipe 250, the fourth pipe 290, and the fifth pipe 410. The introduced refrigerant is separated from the oil mixed in the oil separator 400 (ST-112).

The refrigerant passing through the waste oil separator 400 flows into the sixth pipe 430 and passes through the water filter 500 to remove moisture present in the refrigerant (ST-113).

The refrigerant passing through the water filter 500 is moved to the compressor 300 through the seventh pipe 510. The refrigerant passing through the compressor 300 is in a high pressure state.

The refrigerant passing through the compressor 300 is introduced into the gas-liquid separator 600 through the eighth pipe 310, the ninth pipe 330, and the tenth pipe 370. In the gas-liquid separator 600, a small amount of oil remaining in the refrigerant is separated (ST-114).

The refrigerant passing through the gas-liquid separator 600 is moved to the cooling pipe through the eleventh pipe 610. The cooling tube passes through the inside of the waste oil separator 400 and is heat-exchanged to lower the temperature of the refrigerant (ST-115).

The refrigerant having a lower temperature through the cooling pipe is the first recovery tank 800 through the twelfth pipe 490, the thirteenth pipe 810, and the fourteenth pipe 830 when the first recovery tank 800 is selected. ), And when the second recovery tank 800a is selected, the second recovery tank 800a is collected through the twelfth pipe 490, the 26th pipe 870, and the 28th pipe 880 ( ST-116).

6 and 10, the second recovery step ST-120 is started after the first recovery step ST-110. In the second recovery step ST-120, the vacuum pump 900 is operated to recover the refrigerant. The second recovery step ST-120 may be omitted.

In the second recovery step (ST-120) in which the first recovery tank 800 is selected, the first valve 211, the second valve 231, the ninth valve 271, and the eleventh valve 931 from the control unit. ) And the fourth valve 371 and the fifth valve 811 are opened and the remaining valves are controlled to operate the vacuum pump 900.

In the second recovery step (ST-120) in which the second recovery tank 800a is selected, the first valve 211, the second valve 231, the ninth valve 271, and the eleventh valve ( 931, the fourth valve 371 and the twelfth valve 871 are opened, and the remaining valves are controlled to operate the vacuum pump 900.

The control unit opens and closes each valve according to a recovery tank, and then the vacuum pump 900 is operated to suck the refrigerant contained in the vehicle air conditioner through the first pipe 210 and the second pipe 230 connected to the vehicle air conditioner. (ST-121).

In this case, the vacuum pump 900 sucks the refrigerant at a lower pressure than the compressor 300, and the suction force of the refrigerant is greater than that of the compressor 300. In the second recovery step ST-120, the vacuum pump 900 and the compressor 300 may be operated together.

The sucked refrigerant passes through the third pipe 250, the 20th pipe 270, the 21st pipe 280, the 23rd pipe 910, the 24th pipe 930 and the fifth pipe 410, and the waste oil separator. Inflow to 400. The introduced coolant is separated from the oil mixed in the oil separator 400 (ST-122).

 The refrigerant passing through the waste oil separator 400 flows into the sixth pipe 430, passes through the water filter 500, and removes water present in the refrigerant (ST-123).

The refrigerant passing through the water filter 500 is moved to the compressor 300 through the seventh pipe 510. The refrigerant passing through the compressor 300 is introduced into the gas-liquid separator 600 through the eighth pipe 310, the ninth pipe 330, and the tenth pipe 370. In the gas-liquid separator 600, a small amount of oil remaining in the refrigerant is separated (ST-124).

The refrigerant passing through the gas-liquid separator 600 is moved to the cooling pipe through the eleventh pipe 610. Heat is passed through the inside of the waste oil separator 400 by the cooling tube, thereby lowering the temperature of the refrigerant (ST-125).

The refrigerant having a lower temperature through the cooling pipe is the first recovery tank 800 through the twelfth pipe 490, the thirteenth pipe 810, and the fourteenth pipe 830 when the first recovery tank 800 is selected. ), And when the second recovery tank 800a is selected, the second recovery tank 800a is collected through the twelfth pipe 490, the 26th pipe 870, and the 28th pipe 880 ( ST-126).

As shown in FIG. 7 and FIG. 10, after the second recovery step ST-120, the first pipe emptying step ST-130 is started. Since the second recovery step ST-120 is omitted, after the first recovery step ST-110, the first pipe emptying step ST-130 may be started. In the first pipe emptying step (ST-130), the refrigerant remaining in the pipe of the refrigerant recovery device is sucked by the compressor (300).

In the first pipe emptying step (ST-130), the compressor 300 is controlled so that the sixth valve 631 is opened from the controller and the remaining valves are closed. After the valves are opened and closed, the compressor 300 is operated to suck the refrigerant remaining in the piping of the refrigerant recovery device (ST-131).

The refrigerant remaining in the fourth pipe 290, the fifth pipe 410, and the waste oil separator 400 communicating with the fifth pipe 410 is the sixth pipe 430 and the water filter 500. ) And the seventh pipe 510 are sucked into the compressor 300. In addition, the refrigerant remaining in the tenth pipe 370 and the gas-liquid separator 600 communicating with the gas-liquid separator 600 are sucked into the compressor 300 through the fifteenth pipe 630. In addition, the refrigerant remaining in the thirteenth pipe 810 and the twenty-six pipe 870 and the twelfth pipe 490 and the cooling pipe in a portion communicating with the twelfth pipe 490 are connected to the eleventh pipe 610. It flows into the gas-liquid separator 600 and is sucked into the compressor 300 through the fifteenth pipe 630.

At this time, the pressure is measured from the pressure gauge PS2 connected to the portion communicating with the fifth pipe 410 of the fourth pipe 290. In the process of inhaling the refrigerant, the control unit, if there is no change in the pressure measured from the pressure gauge PS2, each valve is opened and closed according to the recovery tank to collect the refrigerant into the selected recovery tank.

In the first pipe emptying step (ST-130) in which the first recovery tank 800 is selected, the compressor 300 is controlled so that the seventh valve 851 is opened from the controller and the remaining valves are closed. After each valve is opened and closed, the sucked refrigerant is formed through the eighth pipe 310, the sixteenth pipe 350, the seventeenth pipe 850, and the fourteenth pipe 830 due to the compressor 300. The collection tank 800 is collected (ST-132).

Alternatively, in the first pipe emptying step (ST-130) in which the second recovery tank 800a is selected, the compressor 300 is controlled so that the thirteenth valve 891 is opened from the controller and the remaining valves are closed. . After each valve is opened and closed, the refrigerant is sucked through the eighth pipe 310, the sixteenth pipe 350, the 27th pipe 890, and the 28th pipe 880 by the compressor 300. Collected into the two recovery tank (800a) (ST-132).

In this case, the weight of the recovery tank is measured by the weight sensor 801 provided in the first recovery tank 800 or the weight sensor 801a provided in the second recovery tank 800a. In the process of collecting the refrigerant, the control unit is the first pipe emptying step (ST-130) is terminated if there is no change in the weight measured from the weight sensors (801,801a).

In addition, the controller transmits the amount of refrigerant recovery to the measurement storage unit 1400 except the weight of the first recovery tank 800 or the second recovery tank 800a emptied from the measured weight.

8 to 10, after the first pipe emptying step ST-130, the second pipe emptying step ST-140 is started. In the second pipe emptying step (ST-140), the refrigerant remaining in the piping of the refrigerant recovery device is further recovered by the vacuum pump 900.

In the second pipe emptying step (ST-140), the vacuum valve (4), the sixth valve 631, and the tenth valve (971) is opened from the control unit and the remaining valves are closed. 900 is controlled to operate. After each valve is opened and closed, the refrigerant remaining in the piping of the refrigerant recovery device is sucked by the vacuum pump 900 (ST-141).

At this time, the vacuum pump 900 sucks the refrigerant at a lower pressure than the compressor 300, and the suction force of the refrigerant is improved than the compressor 300.

The refrigerant remaining in the fourth pipe 290, the fifth pipe 410, and the waste oil separator 400 communicating with the fifth pipe 410 is the sixth pipe 430 and the water filter 500. ) And the seventh pipe 510 flows into the compressor 300 and is sucked into the vacuum pump 900 through the eighth pipe 310, the ninth pipe 330, and the twenty-second pipe 970. The compressor 300 is sucked into the vacuum pump 900 through the fifteenth pipe 630, the gas-liquid separator 600, the tenth pipe 370, and the twenty-second pipe 970. In addition, the refrigerant remaining in the thirteenth pipe 810 and the twenty-six pipe 870 and the twelfth pipe 490 and the cooling pipe in a portion communicating with the twelfth pipe 490 are connected to the eleventh pipe 610. It flows to the gas-liquid separator 600 and is sucked into the vacuum pump 900 through the tenth pipe 370 and the 22nd pipe 970. In addition, the refrigerant remaining in the seventeenth pipe 850, the seventeenth pipe 890, the sixteenth pipe 890, the sixteenth pipe 350, and the compressor 300 of the portion interworking with the sixteenth pipe 350 is disposed in the ninth pipe 330. And through the twenty-second pipe 970 is sucked into the vacuum pump 900. In addition, the refrigerant remaining in the twentieth pipe 270 and the twenty-first pipe 280 of the portion communicating with the twenty-first pipe 280 is sucked into the vacuum pump 900.

In the process of inhaling the refrigerant due to the vacuum pump 900, the control unit, if there is no change in the pressure measured from the pressure gauge PS2, the eighth valve 451 is opened and the remaining valves are closed in the vacuum pump ( 900 is controlled to operate.

The refrigerant sucked into the vacuum pump 900 is discharged to the waste oil tank 700 through the 23rd pipe 910, the 25th pipe 950, and the 19th pipe 460. In addition, the waste oil remaining in the waste oil separator 400 is also discharged to the waste oil tank 700 through the eighteenth pipe 450 and the nineteenth pipe 460 (ST-142).

In this case, the weight of the recovery tank may be measured by a weight sensor provided in the waste oil tank 700. The amount of refrigerant recovered except the weight of the waste oil tank 700 emptied from the measured weight may be transmitted to the measurement storage unit 1400.

Refrigerant recovery method using the refrigerant recovery device in the refrigerant recovery step (ST-350) as described above, the first recovery step (ST-110), the second recovery step (ST-120) and the first pipe emptying step (ST- 130, the three refrigerant recovery steps are performed, and the recovery rate is improved compared to that of the conventional refrigerant recovery.

In addition, since the first pipe emptying step ST-130 as well as the second pipe emptying step ST-140 pass through, the refrigerant remaining in the piping of the refrigerant recovery device is almost recovered. Therefore, even if a variety of refrigerants are used in one refrigerant recovery apparatus without the need for a separate pipe emptying, the refrigerants can be easily used without mixing.

As shown in FIG. 3, in the second transmission step ST-360, the amount of refrigerant recovery measured in the refrigerant recovery step ST-360 is received along with vehicle number information through the measurement control unit 1100. Is sent to 2100.

In the storage step ST-370, the refrigerant recovery amount information for the chassis number transmitted to the reception device 2100 is stored in the reception storage unit 2140. The refrigerant recovery amount and the chassis number stored in the reception storage unit 2140 may be transmitted to the management server through the reception transmission / reception unit 2150. Therefore, it is a data for studying the environmental problem by providing the recovery information on the collected vehicle number, there is no need to write by hand to prevent the occurrence of omission or error.

Until now, the vehicle air conditioner refrigerant recovery system according to the present invention has been described with reference to the embodiment shown in the drawings, but this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible. . Therefore, the true technical protection scope should be defined by the technical spirit of the appended claims.

1000: measuring unit 1100: measuring control unit
2000: Reception unit 2110: Reception control unit
300: compressor 400: waste oil separator
500: water filter 600: gas-liquid separator
700: waste oil tank 900: vacuum pump
800: the first recovery tank 800a: the second recovery tank

Claims (4)

Measurement unit for receiving the vehicle information for recovering the refrigerant is input, the measurement unit connected to the receiving unit 2000 receives the information received by the receiving unit 2000 and transmits the recovered refrigerant recovery amount information to the receiving unit 2000 Part 1000;
The reception unit 2000 is provided with a reception device 2100, and the reception device 2100 is connected to the reception control unit 2110 and the reception control unit 2110 and receives a vehicle input number of the vehicle V. 2130, a reception storage unit 2140 connected to the reception control unit 2110 and storing received chassis number information and an operation program, and a reception display unit connected to the reception control unit 2110 and displaying the received information. 2120 and a reception transmitter / receiver 2150 connected to the reception controller 2110;
The measurement unit 1000 includes a refrigerant recovery device, a measurement control unit 1100 connected to the refrigerant recovery unit, a measurement input unit 1300 connected to the measurement control unit 1100, and a measurement display unit connected to the measurement control unit 1100. And a vehicle identification number of the vehicle V input from the reception input unit 2130 is displayed on the measurement display unit 1200;
When the refrigerant recovery device is connected to the vehicle V, and the vehicle chassis number displayed on the measurement display unit 1200 is selected through the measurement input unit 1300 and an operation command is input, the refrigerant recovery device RS is operated to operate the vehicle V. The refrigerant of the air conditioner is recovered and the recovery amount is measured by the weight sensors 801 and 801a provided in the refrigerant recovery device, and the measured amount of the refrigerant recovery is transmitted to the reception unit 2000 together with the chassis number information;
The refrigerant recovery device includes a first pipe 210 having a connection terminal at one end and a first valve 210 having a first valve 211, a second pipe 230 having a connection terminal at one end and a second valve 231. The third pipe 250 has both ends connected to the other end of the first pipe 210 and the other end of the second pipe 230, respectively, and one end of the second pipe 230 and the third pipe 250 are connected to each other. A fourth pipe 290 connected to one end of the fourth pipe 290 having a third valve 291, and one end connected to the other end of the fourth pipe 290, and the other end connected to the waste oil separator 400. 410, one end is connected to the waste oil separator 400 and the other end is the sixth pipe 430 connected to the water filter 500, one end is connected to the water filter 500 and the other end is the compressor 300 A seventh pipe 510 connected to one end, an eighth pipe 310 connected to the compressor 300, one end of the ninth pipe 330 connected to the other end of the eighth pipe 310, and one end of the eighth pipe 330 connected to the compressor 300. Open at the other end of the ninth pipe 330 The other end is connected to the gas-liquid separator 600, the tenth pipe 370 provided with a fourth valve 371, one end is connected to the gas-liquid separator 600 and the other end is inside the waste oil separator 400 The eleventh pipe 610 connected to the cooling pipe 470 provided in one end, the twelfth pipe 490 connected to the cooling pipe 470, one end is connected to the other end of the twelfth pipe 490 A thirteenth pipe 810 equipped with a fifth valve 811, one end of which is connected to the other end of the thirteenth pipe 810, and the other end of the fourteenth pipe 830 connected to the first recovery tank 800; One end is connected to the gas-liquid separator 600, the other end is connected to the compressor 300, and a fifteenth pipe 630 provided with a sixth valve 631, and one end of the eighth pipe 310 and a ninth pipe. The sixteenth pipe 350 connected to the connection of the pipe 330, one end is connected to the other end of the sixteenth pipe 350 and the other end is connected to the connection of the thirteenth pipe 810 and the fourteenth pipe 830 Connected and provided with a seventh valve 851. The seventeenth pipe 850, one end is connected to the waste oil separator 400, the eighteenth pipe 450 is provided with an eighth valve 451, and one end is connected to the other end of the eighteenth pipe (450) The other end is composed of a nineteenth pipe 460 connected to the waste oil tank 700, and further includes a control unit, the first valve 211, the second valve 231, and the third valve 291 and The fourth valve 371, the fifth valve 811, the sixth valve 631, the seventh valve 851, the eighth valve 451, and the compressor 300 are connected to the control unit. ;
The compressor 300 is operated to recover the refrigerant (ST-110) and the first pipe emptied to recover the refrigerant remaining in the piping of the refrigerant recovery charging unit after the first recovery step (ST-110) Is operated including step ST-130;
In the first recovery step ST-110, the first valve 211, the second valve 231, the third valve 291, the fourth valve 371 and the fifth valve 811 are opened, and the remaining valves are In the closed state, the compressor 300 is operated to inhale the refrigerant, and the sucked refrigerant passes through the waste oil separator 400, the water filter 500, and the gas-liquid separator 600, thereby separating water and oil from the refrigerant. The refrigerant from which water and oil are separated is heat-exchanged through the cooling pipe 470 and collected in the first recovery tank 800;
In the first pipe emptying step (ST-130), the sixth valve 631 and the seventh valve 851 are opened and the remaining valves are closed in the piping of the refrigerant recovery charging device by the compressor 300. A refrigerant recovery system for a vehicle air conditioner, wherein a refrigerant is collected and collected into the first recovery tank (800). According to claim 1, Refrigerant recovery amount and chassis number information transmitted to the reception unit 2000 is stored in the reception storage unit 2140 of the reception device 2100, the refrigerant recovery amount and chassis stored in the reception storage unit 2140 The vehicle air conditioner refrigerant recovery system, characterized in that the number is transmitted to the management server through the reception and reception unit (2150). delete According to claim 1, wherein the refrigerant recovery device is further provided with a second recovery tank (800a); One end is connected to the connection portion of the twelfth pipe 490 and the thirteenth pipe 810 and the twenty-sixth pipe 870 is provided with a twelfth valve 871, and one end is the other end of the twenty-six pipe 870 The other end is connected to the connection of the sixteenth pipe 350 and the seventeenth pipe 850 and the twenty-seventh pipe 890 having a thirteenth valve (891), one end is the 26th pipe 870 and the 27th The air conditioner refrigerant recovery system for a vehicle, further comprising a twenty eighth pipe 880 connected to the connection portion of the pipe 890 and connected to the second recovery tank 800a.

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