KR200379185Y1 - Remote Control Devices of Freezer and Cooling Device - Google Patents

Abstract

The present invention is a refrigeration and cooling device, it is possible to monitor the state of the temperature and pressure of the refrigerant gas generated in the process of compression, condensation, expansion, evaporation, through wired or wireless communication network, and to determine and control its normal operation and abnormality. The present invention relates to an automatic temperature pressure diagnosis control device and to a refrigeration and cooling device management device using a wired / wireless communication network at a remote location.

Description

Wired / wireless management device for refrigeration and cooling unit {Remote Control Devices of Freezer and Cooling Device}

In general, in the cooling and refrigerating system, the refrigerant vapor of the high temperature and high pressure compressed in the compressor 1 is separated from the refrigerant in the oil separator 2, and the oil is an oil cooler 3, and the refrigerant is a condenser. The refrigerant liquid of high temperature and high pressure sent to (4) is sent to the liquid separator by heat exchange in the intermediate cooler (5). It is sent to the cooling or, in the case of a single stage compressor to configure a cooling device that goes through a circulation process sent to the compressor (1).

The compressor (1), oil separator (2), oil cooler (3), condenser (4), intermediate cooler (5), expansion valve (6), evaporator (7) and liquid separator (8) are organically piped. The lines are connected to each other, and refrigerants are transferred to each other through these pipelines, and refrigerant gases of high temperature and pressure are formed.

At this time, in order to check the state of the high-temperature and high-pressure refrigerant delivered to each other through the pipeline, the on-site worker frequently checks the temperature and pressure state of the refrigerant for each connection part of the pipeline through the conventional manual gauge. After determining the abnormality of temperature and gas leakage, appropriate measures are taken.

However, in the above method, since leakage and temperature detection of the refrigerant gas are made by humans, a manual situation may occur after a serious situation is taken, and preventive measures thereof may be difficult, and the refrigerant may be removed after working hours. It is difficult to know the state of the gas.

In order to solve the above problems, in the past, an automatic temperature sensor and a pressure sensor are attached to the device to determine whether there is an abnormality. However, this also has a disadvantage that is only a preventive action limited to the site. It is not easy to monitor.

In addition, the introduction of the conventional management device for cooling and freezing equipment requires a lot of cost and equipment environment, so it is a burden to introduce it to the management device for general small and medium-sized cooling and freezing devices.

In order to solve the above problems, the present invention proposes an integrated detection and control circuit that can immediately and automatically prevent and measure the refrigerant gas leakage, temperature and pressure state of the refrigerating and cooling devices, and use the wired / wireless communication network. The purpose of this study was to construct a device that can manage refrigeration and cooling devices at remote sites outside the site.

The main construction method of the present invention in the refrigerating and cooling device,

The automatic temperature pressure diagnostic control device for refrigerant gas, which detects and automatically controls the state of leakage, temperature and pressure of refrigerant gas generated during compression, condensation, expansion, evaporation, process, It consists of a signal processing unit for processing red signals, a sensing unit consisting of an antenna unit for transmitting data to the wired and wireless communication network and a wired unit, and a control unit for automatically adjusting temperature and pressure.

In addition, it was used to determine and control the refrigerant gas leakage of the refrigeration and cooling devices in the field on wired, wireless, and the Internet.

In the present invention, Figure 1 is an overall block diagram equipped with the refrigerant gas, oil and current signal automatic temperature and pressure diagnostic control devices of the wired and wireless management device of the refrigerating and cooling device.

1 is an automatic temperature pressure diagnosis control device (A) for confirming and controlling abnormality of the high temperature and high pressure refrigerant vapor compressed by the compressor (1) is attached to the oil separator (2) direction pipeline; Automatic temperature pressure diagnosis control devices (B) and (C) for checking and controlling abnormality of oil and refrigerant separated in the oil separator (2) are attached to the oil cooler (3) and condenser (4) direction pipelines; An automatic temperature pressure diagnosis control device (D) for checking and controlling abnormality of the refrigerant condensed in the condenser is attached to the intermediate cooler 5 direction pipeline; An automatic temperature pressure diagnosis control device E for the presence and abnormality of the temperature pressure of the intermediate cooler 5 is attached on the intermediate cooler 5; An automatic temperature pressure diagnosis control device (F) for checking and controlling the abnormality of the refrigerant cooled in the intermediate cooler (5) is attached to the compressor direction pipeline; An automatic temperature pressure diagnostic control device (G) for checking and controlling the abnormality of the oil cooled in the oil cooler (3) is attached to the compressor direction pipeline.

In the above cooling and refrigerating device, a current signal diagnosis control device (H) is attached to a power supply unit (7) for driving the compressor; In addition, the refrigerant gas automatic temperature pressure diagnosis control device (I), (J) and (K) are respectively an oil separator (3), a condenser (4), an intermediate cooler (5), a bulge valve (6) and an evaporator (7). ) Is attached to the liquid separator 8 and the compressor driving unit 9 and is in charge of checking and controlling the abnormality of the refrigerant delivered to the cooling tower or other cooling fan.

The automatic temperature pressure diagnostic control device is applied not only to the diagnostic control of the refrigerant gas but also to the diagnostic control device of the oil and the current diagnosis control device of the driving power supply unit 9 of the compressor.

In the present invention, a block diagram showing a circuit portion of the refrigerant gas, oil and current signal automatic temperature and pressure diagnostic control device is shown in FIG.

According to Figure 2, the automatic temperature pressure diagnostic control device for processing the electrical signal transmitted from the sensor unit, the sensor unit for detecting the presence of abnormalities such as the refrigerant gas, oil temperature and pressure delivered through the pipeline of the refrigeration and cooling device Sensor signal processing unit, an interface unit for converting a signal processed into a digital signal into a wireless and wired transmission modulation signal, an antenna unit for transmitting the converted modulated signal to a remote place through an antenna and a wired unit for transmitting through a wired medium. .

In addition, the automatic temperature pressure diagnosis control device automatically checks the abnormality of the refrigerant gas and oil in the remote monitoring and automatically controls the temperature and pressure control command for the temperature and pressure on the wired and wireless lines. Received by the device, the received signal is transmitted to the control signal processing unit through the interface unit, the transmitted control signal is transmitted to the mechanical / electronic control device to adjust the temperature control and pressure control of the refrigerant gas.

In the present invention, Figure 3 is a flow chart showing a system for determining the abnormality and the automatic control of the refrigerant gas, oil and driving current, etc. made through the wired and wireless management device of the refrigerating and cooling device.

According to Figure 3, the on-site refrigeration and cooling device is in an operating state, and always monitor the presence or absence of abnormality of the temperature and pressure state of the refrigerant gas for each part described in FIG. After comparing and comparing the set limits of temperature and pressure, automatic control signals are transmitted remotely for temperature and pressure changes exceeding the set limits, and the temperature and pressure are controlled by the automatic temperature pressure diagnostic control device. I'm following the line.

As described above, the refrigeration system management device using the automatic temperature pressure diagnosis control device can diagnose the refrigerant gas leakage of the refrigeration and the cooling device, wired and wireless, as well as in the field and remotely, and can automatically control when an abnormality occurs.

As described above, the remote management device of the refrigerating and cooling device according to the present invention can prevent the refrigerant gas leakage accident even in the absence of an on-site worker, and can control the driving current of the refrigerant gas, oil, and the compressor even in the remote place. have.

In addition, the communication environment of the remote management device of the refrigeration and cooling device is applicable to monitoring through the Internet as well as a dedicated wired and wireless environment.

Fig. 1: Overall block diagram with refrigerant gas, oil and current signal automatic temperature and pressure diagnostic control devices in wired and wireless management devices of refrigeration and cooling system.

2 is a block diagram showing a circuit portion of a refrigerant gas, oil and current signal automatic temperature and pressure diagnostic control device;

3 is a flowchart illustrating a system for determining abnormality of refrigerant gas, oil, driving current, etc. and automatically controlling the same.

<Description of the symbols for the main parts of the drawings>

1: compressor

2: oil separator

3: oil cooler

4: condenser

5: intermediate cooler

6: expansion valve

7: evaporator

8: liquid separator

9: compressor driving circuit

Claims (6)

In the wired and wireless management device of the refrigeration and cooling device, An automatic temperature pressure diagnosis control device (A) for checking and controlling abnormality of the high temperature and high pressure refrigerant vapor compressed by the compressor (1) is attached to the oil separator (2) direction pipeline; Automatic temperature pressure diagnosis control devices (B) and (C) for checking and controlling abnormality of oil and refrigerant separated in the oil separator (2) are attached to the oil cooler (3) and condenser (4) direction pipelines; An automatic temperature pressure diagnosis control device (D) for checking and controlling abnormality of the refrigerant condensed in the condenser is attached to the intermediate cooler 5 direction pipeline; An automatic temperature pressure diagnosis control device E for the presence and abnormality of the temperature pressure of the intermediate cooler 5 is attached on the intermediate cooler 5; An automatic temperature pressure diagnosis control device (F) for checking and controlling the abnormality of the refrigerant cooled in the intermediate cooler (5) is attached to the compressor direction pipeline; Wire and wireless management device for refrigeration and cooling system characterized in that the automatic temperature pressure diagnostic control device (G) for confirming and controlling the abnormality of the oil cooled in the oil cooler (3) is attached to the compressor direction pipeline The method of claim 1, The automatic temperature pressure diagnosis control device (H) is attached to a power supply unit (7) for driving a compressor; In addition, the refrigerant gas automatic temperature pressure diagnosis control device (I), (J) and (K) are respectively an oil separator (3), a condenser (4), an intermediate cooler (5), an expansion valve (6), and an evaporator (7). , Wired and wireless management device of the refrigerating and cooling device, characterized in that attached to the liquid separator (8) The method of claim 1, The automatic temperature pressure diagnostic control device is a wired / wireless management device for a refrigeration and cooling device, characterized in that it comprises not only a diagnostic control of a refrigerant gas but also a diagnostic control device of an oil and a current diagnosis control device of a driving power source (9) of a compressor. The method of claim 1, The automatic temperature pressure diagnosis control device is a sensor unit for detecting the presence of abnormalities such as the refrigerant gas, oil temperature and pressure delivered through the pipeline of the refrigerating and cooling device, a sensor signal processing unit for processing the electrical signal transmitted from the sensor unit Refrigeration and cooling characterized by consisting of an interface unit for converting a signal processed into a digital signal into a wireless and wired transmission modulation signal, an antenna unit for transmitting the converted modulation signal to a remote place through an antenna and a wired unit for transmitting through a wired medium Wired / wireless management device The method of claim 1, The automatic temperature pressure diagnostic control device automatically checks the abnormality of the refrigerant gas and oil in the remote monitoring and automatically controls the temperature and pressure control command signal for the temperature and pressure on a wired or wireless basis. And the received signal is transmitted to the control signal processing unit through the interface unit, and the transmitted control signal is transmitted to the mechanical / electronic control device. The method of claim 1, The remote management device of the refrigeration and cooling device is a wired and wireless management device of the refrigeration and cooling device, characterized in that remote management is possible not only through a dedicated wired and wireless network but also through the Internet network.