KR100773427B1 - High speed wireless non-homogeneous soil exchange effectiveness tester - Google Patents

Abstract

A device for measuring soil heat exchange effectiveness is provided to measure temperature, temperature distribution and thermal conduction rate of underground by the depth, be easy to be carried due to waterproof property and light weight, identify the operation through eyes by mounting an LED lamp inside, and transfer data directly to a computer, thereby simplifying the structure and improving the convenience of use. A soil heat exchange effectiveness testing device(10) comprises a PCB substrate(40) in which a temperature and pressure sensor(44) is mounted to measure the temperature and pressure of a fluid encapsulated into a bore hole, a microprocessor(41) mounted to one side of the PCB substrate to treat the measured data, an EEPROM(42) which is a read-only memory and allows the microprocessor to store data transferred from the temperature and pressure sensor, a main body(20) including one end of the PCB substrate and a power supply portion(43), a cover(30) covering the PCB substrate exposed from the main body and made of a transparent synthetic resin, and a connection port(47) formed at one end of the PCB substrate to directly transfer the data to a computer.

Description

High Speed Wireless Non-homogeneous Soil Exchange Effectiveness Tester

1 is a schematic view of a measuring device according to an embodiment of the present invention.

2 is a schematic diagram showing another embodiment of the present invention.

3 is a schematic diagram showing another embodiment of the present invention.

Figure 4 is a schematic diagram showing a bore hole into which the measuring device of the present invention is put.

5 is a schematic diagram showing a measuring apparatus for measuring the conventional ground thermal conductivity.

<Explanation of symbols for main parts of the drawings>

10: measuring device 20: main body

30: cover 40: PCB substrate

41: microprocessor 42: EEPROM

43: power supply 44: temperature and pressure sensor

45: operation button 46: LED lamp

47: connector 48: RF transmitter

50: borehole

The present invention relates to an underground heat exchange effectiveness measuring device, and more particularly, to a microprocessor for processing data, and a temperature and pressure sensor to quickly measure the temperature according to the water pressure when inserted into the borehole and based on this The present invention relates to an ultra-high speed non-homogeneous geothermal heat exchange efficiency measuring device, which enables the analysis of soil properties and the direct connection to a computer without a repeater.

In recent years, interest in clean energy and alternative energy is increasing, and many studies are continued. One representative method is geothermal method. The geothermal technology has a great economic potential because it is an alternative energy technology with high utility as building energy. A typical geothermal heat exchanger is a heat pump system equipped with a heat pump unit and an underground heat exchanger. While absorbing underground heat.

In order to use the geothermal heat exchanger, measuring the thermal conductivity and temperature distribution of the ground is an essential parameter. It is preferable to measure the elements and install the ground heat exchanger, the size and length of the ground heat exchanger, and the type of the ground heat exchanger. .

Therefore, the technique for measuring this is to put the fluid in the borehole (1) installed in the ground as shown in Figure 5 and to recover the injected fluid to the recovery device 2 after a certain time to measure the temperature of the recovered fluid . That is, the conventional method is to estimate the state of the underground soil based on the temperature difference and the flow rate by measuring the fluid temperature before entering the borehole and the recovered fluid temperature after the injection, because the entire soil is homogeneous. Depth ground temperature and thermal conductivity for most heterogeneous soils cannot be measured.

In addition, because the measurement is recommended for more than 48 hours to ensure the accuracy of the measurement is required at least three days from the measurement preparation to removal, there is a disadvantage that the labor cost increases accordingly.

The present invention has been made to solve the above problems,

It is possible to measure the temperature, temperature distribution and thermal conductivity of the ground by depth, and it is easy to move by lightly waterproofing and weight using transparent synthetic resin, and it is equipped with LED lamp inside to check the operation status visually. It is an object of the present invention to provide a device that forms a connector at the end and is directly coupled to a computer to transmit data, thereby simplifying the structure of the device and improving convenience of use.

In another aspect, the present invention is to enable the wireless transmission of the measured data by mounting the RF transmitter.

Underground heat exchange effectiveness measuring apparatus of the present invention for achieving the above object,

A PCB substrate equipped with a temperature and pressure sensor for measuring the temperature and pressure of a fluid contained in an underground bore hole, a microprocessor mounted at one side of the PCB substrate to process measured data, and one end of the PCB substrate; And a cover made of a transparent synthetic resin covering a PCB substrate exposed from the main body.

The PCB substrate further includes an EEPROM, which is a read-only memory, and a microprocessor supplied with power from the power supply unit stores data received from a temperature and pressure sensor in the EEPROM.

In addition, the temperature and pressure sensor measures the pressure and temperature according to the depth of the borehole to transmit the measured data to the microprocessor of the main body.

In addition, the PCB board can be mounted to the LED lamp so that the operation can be checked with the naked eye, and one end of the PCB board to form a connector to be directly coupled to the computer after the measurement can be made to transmit data. In addition, one end of the PCB substrate may be equipped with an RF transmitter to transmit data wirelessly to a computer.

Hereinafter, the ground heat exchange effectiveness measuring apparatus of the present invention as described above will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of a measuring apparatus according to an embodiment of the present invention, Figure 2 is a schematic diagram showing another embodiment of the present invention, Figure 3 is a schematic diagram showing another embodiment of the present invention, Figure 4 is It is a schematic diagram which shows the borehole into which the measuring apparatus of this invention is put.

As shown, the measuring apparatus 10 of the present invention is composed of a main body 20 having a PCB 40 and a cover 30. The main body 20 is preferably formed of a material capable of preventing oxidation, such as stainless steel or synthetic resin, which is strong in water resistance, and is equipped with a PCB substrate. The PCB substrate 40 has one side fixed to the main body 20 and the other side is exposed to the outside, and the exposed portion is protected by the cover 30. The cover 30 is preferably formed of a waterproof synthetic resin material, it may be formed of a transparent material or a semi-transparent material to be able to visually check the state of the interior.

In addition, the PCB 40 is equipped with a microprocessor 41, an EEPROM 42 and a power supply 43, the microprocessor 41 is driven directly by receiving power from the power supply 43 and the following temperature and Data transmitted from the pressure sensor 44 is to be stored in the storage memory EEPROM (42). The EEPROM 42 may be a component of the microprocessor 41.

In addition, the temperature and pressure sensor 44 is to be measured by a predetermined time unit, the measurement is measured by receiving a signal from the microprocessor 41, or periodically repeated sensing to sense data To the microprocessor. The two sensors 44 may be supplied with power for sensing through the microprocessor 41 or directly from the power supply 43.

Since the measuring device 10 having such a configuration measures the thermal conductivity and the temperature distribution for each depth of the heterogeneous soil, the total measurement time can be measured very quickly within 1 hour based on the 300M borehole 50. In addition, by just being inserted into the borehole 50, it is possible to grasp the characteristics of the soil for each depth and to predict the type of soil, and to measure the depth by the pressure, thereby enabling verification of the installation state of the drilled borehole. will be.

When the measuring device 10 of the present invention is put into one side of the bore hole 50 in which the fluid is fresh, the measuring device is settled along the bore hole to measure pressure and temperature. That is, the measuring device operates the microprocessor 41 and the temperature and pressure sensor 44 by the power of the power supply 43, and the microprocessor 41 senses the sensing signal to the temperature and pressure sensor 44 at a predetermined time. After sending the sensor to perform the sensing to receive the sensed data to be stored in the EEPROM (42). In addition, each sensor may be sensed for a predetermined time to transmit the sensed data to the microprocessor.

In addition, the measuring device 10 of the present invention forms a connector 47 at one end of the PCB substrate 40, and the connector is exposed to the outside of the cover 30 can be directly coupled to the computer using the connector. You can do that. Therefore, the connector 47 may be composed of a plurality of pins, or may be configured as a USB port.

As shown in FIG. 2, the measuring device 10 of the present invention can improve usability by mounting an operation button 45 and an LED lamp 46 on the PCB substrate 40. By forming an operation button on the PCB board located in the inner portion of the cover 30, the user can press the device to ON / OFF by pressing, LED lamp 46 on one side to check the operation of the device with the naked eye It is further installed to judge the operation according to the light emission of the lamp.

In addition, the main body 20 may enable the power supply 43 and the PCB board 40 to be detachable so that the PCB board 40 on which the sensor is mounted may be reused by replacing the power after the measurement.

As shown in FIG. 4, the effectiveness measuring apparatus 10 of the present invention is injected into the bored hole 50 bored in the ground, and moves along the fluid freshwater in the bore hole, thereby providing power to the power supply unit 43 through periodic sensing. Will use power. Therefore, in order to reuse the measuring device, the replacement of the power supply unit 43 should be made, so that the PCB board 40 can be separated from the main body 20 so as to facilitate the replacement of the power supply unit, and then recombined with the PCB board. Can be. In addition, the rear portion of the main body has a removable structure so that the replacement of the power supply portion through the rear portion can be made. Therefore, it is preferable that the power supply unit and the PCB board be coupled in a removable structure through the connector.

As shown in FIG. 3, the measuring apparatus 10 of the present invention may enable data transmission with a computer by wireless. That is, the RF transmitter 48 is mounted at one end of the PCB 40 so that the value measured by the temperature and pressure sensor 44 can be wirelessly transmitted to the computer. That is, when the microprocessor 41 reads the measured values of the sensor stored in the EEPROM 42 and transmits the measured values to the RF transmitter 48, the RF processor converts the frequency of the data and transmits the data wirelessly. To make it happen. Of course, although not shown, the RF transmitter is further equipped with an amplifier or a signal converter, and the above description is omitted in the present specification because it is essentially used in wireless communication.

In addition, the frequency transmission strength may be amplified so that the measured value measured by the measuring device may be transmitted to the outside without storage, and received through an antenna or a computer on the ground to analyze the data.

The measuring device 10 of the present invention configured as described above drops down when it is put into the bore hole 50 and simultaneously measures pressure and temperature. At this time, the measured value is wirelessly transmitted or stored in the EEPROM 42 in the device and recovered through the outlet of the borehole 50, and the recovered measuring device 10 is connected to a computer and stored in the EEPROM 42. To the computer.

Since the transmitted data is measured at the same time pressure and temperature, it is possible to know the measurement position by the measured pressure to know the temperature distribution for each depth. In addition, the thermal conductivity can be known according to the temperature according to the depth, so that it is possible to infer information about the type of soil in the ground. Therefore, since the lamination state and temperature distribution of the soil in the bored hole can be known, it is possible to design and install a geothermal source system suitable for this.

As described in detail above, the ground heat exchange effectiveness measuring apparatus of the present invention,

It is possible to measure the temperature, temperature distribution and thermal conductivity of the ground by depth, and it is easy to move by lightly waterproofing and weight using transparent synthetic resin, and it is equipped with LED lamp inside to check the operation status visually. The structure of the device can be simplified by forming a connector at the end to couple it directly to a computer so that data can be transferred. In addition, the present invention has been made possible to provide a useful device that improves the ease of use by mounting the RF transmitter to wirelessly transmit the measured data.

In addition, the above-mentioned example is only an example to demonstrate this invention. Therefore, it is obvious that the ordinary skilled in the art to which the present invention pertains uses the partial change with reference to the detailed description.

Claims (6)

PCB 40 equipped with a temperature and pressure sensor 44 for measuring the temperature and pressure of the fluid contained in the underground bore hole 50, and a micro mounted to one side of the PCB substrate to process the measured data Underground heat exchange comprising a processor (41), a main body (20) containing one end of the PCB board and a power supply unit (43), and a cover (30) made of a transparent synthetic resin covering the PCB board exposed from the body. Effectiveness measuring device. The method of claim 1, The PCB substrate 40 further includes an EEPROM 42 which is a read-only memory, and the microprocessor 41 supplied with power from the power supply 43 receives data received from the temperature and pressure sensor 44. Underground heat exchange effectiveness measuring apparatus characterized by storing in (42). The method of claim 1, Underground heat exchange effectiveness measuring device, characterized in that to form a connector (47) at one end of the PCB substrate 40 is coupled directly to the computer after the measurement to transmit data. The method of claim 1, The temperature and pressure sensor 44 measures the heat and pressure according to the depth of the borehole (50) and transmits the measured data to the microprocessor (41) of the main body, characterized in that the ground heat exchange effectiveness measuring apparatus. The method of claim 1, The PCB substrate 40 is equipped with an LED lamp 46, the underground heat exchange effectiveness measuring device, characterized in that to check the operation with the naked eye. The method of claim 1, One end of the PCB substrate 40 is equipped with an RF transmitter 48, the underground heat exchange effectiveness measuring apparatus, characterized in that the data is transmitted to the computer wirelessly.

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