KR100997118B1 - Air Conditioning Experiment - Google Patents

Abstract

The present invention relates to a heating and cooling experiment apparatus, the frame 21, the indoor unit (1) installed on the frame 21, the outdoor unit (2) which is a heat pump connected to the indoor unit (1), and the Data collector 22 for collecting temperature and pressure data measured by the thermocouple 15 and the pressure sensor 16 installed in the indoor, outdoor air (1, 2), the thermocouple 15 and the pressure sensor (16). And, characterized in that it comprises a computer controller for displaying and controlling the data collected by the data collector 22, the data collector 22 is characterized in that the connector 25 is formed and connected to the computer The measurement information of the thermocouple 15 and the pressure sensor 16 installed in the indoor and outdoor air 1 and 2 is collected by the data collector 22 through the communication line 23, and the data collector ( 22, an indicator 27 is connected to display the measured temperature and pressure The data collector 22 outputs the temperature and pressure values measured from the thermocouple 15 and the pressure sensor 16, and uses the measured values for the output temperature and pressure. , Indoor, outdoor air (1,2) Temperature, pressure, enthalpy value for a given position, refrigeration effect (qe), heat equivalent weight of compressed work (AW), heat capacity of condenser discharge (qc), latent heat of evaporation (qr) At least one of the flash gas generation amount (qf) immediately after the expansion valve passes, the dryness (x) immediately after the expansion valve passes, the humidity (y) immediately after the expansion valve passes, and the theoretical coefficient of performance (COP). It characterized in that it comprises a refrigerator monitoring terminal

Air conditioner, indoor unit, outdoor unit, heat pump, laboratory equipment

Description

Air Conditioning Experiment Equipment {TESTING APPARATUS OF AIR-CONDITIONING AND HEATING}

The present invention relates to a heating and cooling experiment apparatus, and in particular to an experimental equipment that can be measured and tested for heating and cooling equipment installed in the outdoor unit and the indoor unit consisting of a heat pump for education and development.

In general, the cooling-related educational experimental equipment is composed of a mechanical part and a control part, and the mechanical part system can operate by constructing a circuit diagram by a control panel.

The configuration of a simple refrigeration training equipment composed of the mechanical part and the control part can not only be explained by the operation of the mechanical part fixed to the trainee, but it is necessary to construct and implement an active system based on various changes used in the actual field. It is impossible to control, and there is a problem in that there are limitations in the experiment and practice of automatic control according to various environments.

In addition, most of the existing experiments and training equipment related to refrigeration education are large and can explain only the principle of operation at the training site, and only basic education by a fixed system is possible. There are many shortcomings, and there is a problem that it is difficult to calculate various calculation values such as enthalpy according to experiments and practices of automatic control in real time.

That is, as experiments and training equipment related to refrigeration education are operated, even though the temperature and pressure generated in each component are measured, the enthalpy value, refrigeration effect (qe), heat equivalent weight of compressed work (AW), and heat of condenser discharge ( qc), latent heat of evaporation (qr), flash gas generation immediately after passing through the expansion valve (qf), dryness immediately after passing through the expansion valve (x), humidity (y) immediately after passing through the expansion valve, and theoretical coefficient of performance (COP). After recording, there is a hassle of having to calculate each of the above calculated values using various formulas.

Therefore, it is possible to educate trainees in the field of freezers to understand the principles and functions of freezers, to cultivate the principles of electric and sensor automatic control, control operation and circuit design, and to control the temperature, pressure and enthalpy of the devices related to the devices. ), Refrigeration effect (qe), heat equivalent weight of compressed work (AW), heat capacity of condenser discharge (qc), latent heat of evaporation (qr), flash gas generation immediately after passing through expansion valve (qf), dryness immediately after passing through expansion valve (x), a system that can monitor the humidity (y) and the theoretical coefficient of performance (COP) immediately after passing through the expansion valve is urgently needed.

The present invention has been invented to solve the above problems, the object of the present invention is to provide a monitoring terminal using the temperature and pressure data measured by the automatic heating and cooling performance measurement device in each element of the indoor unit and the outdoor unit in the air conditioner It is to provide a heating and cooling performance automatic measurement experimental device that can automatically calculate the enthalpy value and display it to the student in real time.

In addition, another object of the present invention is to provide the trainees with observation, research and application of equipment arrangement and piping necessary for the construction of the air conditioner, control of the refrigerant flow required for device operation, temperature control, and pressure control through experimentation and practice. The purpose of the present invention is to enable trainees to be trained as mid-sized professionals who can engage in freezer-related industries, and to use them to improve the performance of heating and cooling devices and to develop products.

The main configuration of the present invention, the frame 21, the indoor unit (1) installed on the frame 21, the outdoor unit (2) which is a heat pump connected to the indoor unit (1), the above-mentioned indoor, outdoor air A thermocouple 15 and a pressure sensor 16 installed at (1, 2), a data collector 22 for collecting temperature and pressure data measured by the thermocouple 15 and the pressure sensor 16, and data It characterized in that it comprises a computer controller for displaying and controlling the data collected by the collector 22, the data collector 22 is characterized in that the connector 25 is formed and connected to the computer, The heating and cooling experiment apparatus is characterized in that the system is inverter controlled by sensing the outside temperature, the above-described indoor, outdoor air (1, 2) installed in the thermocouple 15 and the pressure sensor 16, the measurement information of the communication line ( 23) collected by the data collector 22, the day Collector 22 is characterized in that the indicator 27 is connected to the display configured to display the measured temperature and pressure, the data collector 22 is measured from the thermocouple 15 and the pressure sensor 16 It outputs temperature and pressure values, and by using the measured values for the output temperature and pressure, temperature, pressure, enthalpy value, refrigeration effect (qe), Heat equivalent weight of compressed work (AW), heat capacity of condenser discharge (qc), latent heat of evaporation (qr), amount of flash gas generated immediately after passage of expansion valve (qf), dryness immediately after passage of expansion valve (x), immediately after passage of expansion valve It characterized in that it comprises a refrigerator monitoring terminal for calculating and displaying at least one of the humidity (y) and the theoretical coefficient of performance (COP) in real time

According to the present invention can be visually confirmed the performance experiments in the heating and cooling system, the educational effect is very high.

In addition, if there is an abnormality in any part of the equipment, it can be detected and the cause can be identified, and this experimental equipment can be applied to the actual product performance and technology development.

1 is an exemplary view for explaining the flow of the refrigerant during the cooling, heating of the experimental apparatus according to the present invention.

As shown, the indoor unit 1 and the outdoor unit 2 are largely divided. The indoor unit 1 is installed indoors, such as a house guide in a building, and is a heat pump unit that is installed outside the room exposing the outdoor unit 2 to the outside air.

First, in the outdoor unit 2, the case of heating will be described by way of example.

By operating the compressor 3, the working fluid passes through the four-way valve 4 and passes through the indoor unit 1 and withdraws heat from the space where the indoor unit 1 is installed, and then enters the filter drier 5 to open the expansion valve 6. It enters into the heat exchanger (7). The heat exchanger 7 serves as an evaporator during heating. The role of the evaporator is to release the heat of the high-temperature, high-pressure gas refrigerant circulated from the compressor into air and cooling water at room temperature to lower the temperature to condense and liquefy. In the present invention, the cooling water 13 heats the heat in the heat exchanger 7 in the process of circulating the inside of the tank 8 by the pump 9. That is, the circulation fluid 10 condenses the working fluid 11 in the heat exchanger 7 to sufficiently liquefy, and enters the four-way valve 4 again to enter the compressor 3.

On the contrary, in the case of cooling, it circulates as follows.

The working fluid from the compressor (3) goes down through the four-way valve (4) and enters the heat exchanger (7). In this case, the heat exchanger 7 serves as a condenser. The working fluid heat-exchanged in the heat exchanger 7 enters the indoor unit 1 through the expansion valve 6 and the filter drier 5 to cool the room. Thus, the circulating working fluid is deprived of the cold air in the room and warmed up, and then goes out of the indoor unit 1 and passes through the four-way valve 4 to the compressor 3 again.

The basic system configuration and operation for the cooling and heating operation is the same as the configuration and operation of the general air conditioning system, more detailed description thereof is unnecessary. As a reference example, the heat exchange in the heat exchanger 7 is shown as water-cooled. That is, the cooling water 13 is circulated between the tank 8 and the heat exchanger 7 so that heat is removed to heat or heat the heat exchanger 7.

In the above-described configuration, as many thermocouples 15 and pressure gauges 16 as necessary are installed at desired locations or locations where major measurements are required. That is, the thermocouple 15 and the pressure gauge 16 installation position for measuring the temperature is not limited to a specific place but may be located anywhere in the position to be measured. The measurement data by the thermocouple 15 and the pressure gauge 16 can be displayed on the screen as described later.

2 is a diagram illustrating a configuration according to the present invention.

As shown, the indoor unit 1 is installed on the frame 21. If you simulate the interior of the building, it is installed on the ceiling. However, it is not limited to this location but can be installed in other locations.

The indoor unit 1 is connected to the outdoor unit 2 which is a heat pump for heating and cooling. The indoor unit 1 and the outdoor unit 2 are provided with a thermocouple 15 and a pressure gauge 16 at the position where the measurement is taken as shown in FIG. Data from the thermocouple 15 and the pressure gauge 16 are collected in the data collector 22. The data collector 22 is installed in the frame 21 in the drawing, but may be installed in other positions.

As illustrated in FIG. 3, the thermocouple 15 (not shown in FIG. 3 but installed as shown in FIG. 1) installed in the outdoor unit 2 is connected to the communication line 23 and installed in the frame 21. 22) information is sent to allow the information to be collected.

4 is an enlarged view of the data collector 22.

As shown, the information collected by the data collector 22 is connected to the computer communication line through the connector 25 can be displayed on the screen of the computer for viewing.

Patent No. 776324 (Patent Application 2006-46576), registered by the applicant, is a "monitoring system using a refrigeration performance automatic measurement test apparatus", which is measured by a freezer performance automatic measurement experiment apparatus at each element of various refrigerators. The present invention relates to a monitoring system using an automatic measuring apparatus for measuring the performance of a refrigerator, which automatically calculates an enthalpy value through a refrigerator monitoring terminal and displays the same in real time to a student.

Its main configuration includes a refrigerator equipped with a plurality of temperature sensors and a plurality of pressure sensors at predetermined positions of a compressor, a condenser, a receiver, an expansion valve and an evaporator, and a plurality of temperature sensors and a plurality of pressure sensors installed at predetermined positions of the refrigerator. By using the freezer performance automatic measurement experimental apparatus for measuring temperature and pressure and outputting the measured temperature and pressure values, and using the measured values for the temperature and pressure received through the freezer performance automatic measurement laboratory apparatus, Temperature, pressure, enthalpy value, refrigeration effect (qe), heat equivalent weight (AW) of compressed work, condenser discharge heat (qc), latent heat of evaporation (qr), flash gas generation after passing through expansion valve (qf), dryness immediately after passing through the expansion valve (x), humidity immediately after passing through the expansion valve (y) and theoretical coefficient of performance (COP) of the freezer It includes a turing terminal 200, the refrigerator monitoring terminal using an interface unit for exchanging various information related to the temperature and pressure with the freezer performance automatic measuring device, and using the temperature and pressure value input through the interface unit Enthalpy value of the refrigerator, refrigeration effect (qe), heat equivalent weight of compressed days (AW), heat capacity of condenser discharge (qc), latent heat of vaporization (qr), flash gas generation immediately after passing through expansion valve (qf), expansion valve An input unit for inputting various information such as a source code for automatically calculating at least one of a dryness degree (x) immediately after passing, a humidity (y) immediately after passing through the expansion valve, and a theoretical coefficient of performance (COP), and A storage unit storing various software information including various calculation-related source codes inputted through the input unit, and various calculation values according to calculation-related source codes stored in the storage unit; And an output unit for displaying the values calculated in real time through the operation unit, circuit diagrams of various refrigerators, and Ph diagrams of various refrigerators, the interface unit), an input unit, a storage unit, a calculation unit, and an output unit. It includes a control unit for controlling the function, respectively calculated through the operation unit of the refrigerator monitoring terminal, the displayed temperature, pressure, enthalpy value, refrigeration effect (qe), heat equivalent weight (AW) of the compression work, qc of condenser discharge heat (qc) , Latent heat of vaporization (qr), flash gas generation immediately after passing through the expansion valve (qf), dryness immediately after passing through the expansion valve (x, ⑬), humidity immediately after passing through the expansion valve (y, ⑭) and theoretical coefficient of performance (COP, I) is stored as an Excel file according to the selection of the storage selection unit 360 (SAVE).

By using the above-described monitoring system, the information transmitted in the present invention can be collected, controlled and displayed by a laptop or a computer, and diagnosed as a failure.

For example, FIGS. 5 and 6 illustrate screens displayed using a monitoring system. 5 is a circuit configuration when cooling (cooling), Figure 6 shows a heating (heating) circuit configuration, and a schematic diagram of the circuit configuration for cooling and heating, temperature, pressure, Ph diagram and calculation calculation screen simultaneously Be able to see

The indicator 27 shown in FIG. 2 is an indicator 27 connected to the data collector 22 to display and display the temperature measured by the thermocouple 15 and the pressure measured by the pressure gauge 16. The above configuration is merely an explanation.

Although the data collector 22 and the indicator 27 are located in the frame 21, they can be located elsewhere.

The apparatus of the present invention can be configured to sense the ambient temperature so that the system is inverter controlled.

1 is an exemplary view showing the configuration and flow of the indoor, outdoor air according to the present invention

2 shows an overall appearance of the apparatus according to the present invention.

3 is a diagram illustrating that measurement data of the outdoor unit 2 is transmitted through the communication line 23.

4 shows an example of the installation of the data collector 22.
5 and 6 illustrate screens displayed using a monitoring system.

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Claims (5)

The frame 21, the indoor unit 1 installed on the frame 21, the outdoor unit 2 which is a heat pump connected to the indoor unit 1, and the indoor and outdoor units 1 and 2 described above. The thermocouple 15 and the pressure sensor 16, the data collector 22 for collecting the temperature and pressure data measured by the thermocouple 15 and the pressure sensor 16 and the data collector 22 collected Computer controller for displaying and controlling data, The data collector 22 has a connector 25 is formed to be connected to the computer, Measurement information of the thermocouple 15 and the pressure sensor 16 installed in the indoor and outdoor air (1, 2) is collected by the data collector 22 through the communication line 23, the data collector 22 The indicator 27 is connected to configure the display to view the measured temperature and pressure, The data collector 22 outputs the temperature and pressure values measured from the thermocouple 15 and the pressure sensor 16, and by using the measured values for the output temperature and pressure, the indoor and outdoor air (1, 2) ) Temperature, pressure, enthalpy value, refrigeration effect (qe), heat equivalent weight (AW) of compression work, condenser discharge heat (qc), latent heat of vaporization (qr), flash gas immediately after passing through expansion valve And a refrigerator monitoring terminal for calculating and displaying in real time at least one of a generation amount qf, a dryness degree immediately after passing the expansion valve, a humidity y immediately after the expansion valve passing, and a theoretical coefficient of performance (COP). Air Conditioning Experiment Equipment delete delete delete delete

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