KR100856879B1 - Sensor kit for observing underground water - Google Patents

Abstract

A sensor kit for observing underground water is provided to facilitate implementation of the sensor kit into a water pipe by mounting various sensors on a single body. A sensor kit for observing underground water is introduced through a water level measuring tube, which is implemented on a water pipe and measures a water level, a water temperature, and an electrical conductivity. The sensor kit sends sensor signals to outside the water pipe. A display panel is implemented on a ground. An underground motor pump circulates the underground water. An underground water circulating pipe ejects the underground water to outside the water pipe. The sensor kit includes sensors(10), a controller(20), and a case body(30). The controller is electrically connected to the sensors. The case body encloses the sensors and the controller.

Description

Sensor Kit For Observing Underground Water

1 is a view showing a sensor kit for groundwater observation according to the present invention installed in the well through a measuring tube,

2 is a cross-sectional view showing a sensor kit for groundwater observation according to the present invention;

3 is an exploded perspective view of FIG. 2;

4 is an enlarged view of only the display panel of FIG. 1;

FIG. 5 is a cross-sectional view taken along the line II of FIG. 4. FIG.

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

1: Decision 2: Submersible motor pump

3: groundwater pumping pipe 5: water level measuring pipe

10: sensors 20: control means

30: Case body 31: The body

32: connecting member 32a: annular protrusion

32b: first through hole 32c: groove

33: first packing member 34: first cap

34a: second through hole 35: watertight member

35a: third through hole 36: second packing member

38: second cap portion 39: third packing member

40: communication cable 110: display panel

101: control unit 103: the first housing

103a: front 103b: flange

105: cover 107: second housing

107a: stepped portion 107b: receiving groove

107c: Groove 109: Packing member

113: Fan part

The present invention relates to a sensor kit for groundwater observation, which is charged into the wells and used for measuring groundwater level, water temperature, and electrical conductivity. In particular, the sensors for measuring groundwater level, water temperature, and electrical conductivity are in one body with excellent watertightness. The present invention relates to a sensor kit for groundwater observation, which is compact, even though it is mounted and converts a measurement signal transmitted from the sensors in the body into a digital signal and transmits it to the outside.

In general, it is well known that sensors for measuring groundwater level, water temperature, and electrical conductivity are charged through a measuring tube that reaches from the top of the well to the groundwater. However, conventionally, by simply combining the sensors and charging them inside the well, and because the analog signals measured by the sensors are processed on the ground or outside of the well, they are large and cannot be charged through the measuring tube. Therefore, in particular, in the case where the groundwater submersible pump is installed in the well, the groundwater pumping pipe and the submersible pump have to be taken out and installed, and in some cases, there is a problem that installation is impossible at all.

Accordingly, an object of the present invention is to solve such a problem, and it is possible to mount the sensors for measuring the water level, water temperature, and electrical conductivity of groundwater in a single case body having excellent water tightness, thereby making it compact. It can be installed conveniently through the measuring tube. In particular, the measuring signal transmitted from the sensors inside the main body makes the display panel installed externally easy to check and can be easily checked by anyone. Is to provide a sensor kit for groundwater observation that has the safety to maintain the water tightness from snow or rain to keep more safe.

In order to achieve the above object, the present invention is located in a measuring tube supported in the well, the communication cable is inserted and supported, the space therein can be installed in a compact control means having sensors and D / A converter Forming a cylindrical shape, both ends are opened to draw out the communication cable in one end and the body for mounting the control means therein, and the cross-shaped (twist) shape forming an annular projection in the middle thereof One side is coupled to one end of the body from the projection and the inner side is connected to the connection member is formed with a first through-hole for inserting the communication cable, the other side from the annular projection of the connection member is drawn out from the connection member inside A first cap portion having a second through hole formed therein for inserting the communication cable therein; and the first cap portion having the communication cable inserted therein; A case formed of a wedge-shaped watertight member made of a resin material for providing watertightness between the connecting members and a U-shaped second cap portion coupled to the other end of the body with the control means and sensors mounted thereon; main body; A control unit having a display window for processing the measurement signals of the sensors transmitted from the control means and displaying them to the outside, which is installed to be exposed to the outside of the well spaced away from where the case main body is located; And a first housing having a flange formed on one surface of the front surface of which the display window is formed to be transparent to the display window, and being coupled to the flange separately to close the opened surface of the first housing. A housing having a lid and a cylindrical body having an enclosed interior to form a receiving groove having a stepped portion from the bottom toward the inside thereof, and accommodating the first housing while seating the flange having the lid coupled to the receiving groove at the stepped portion; A second housing having a fan unit for cooling the heat generated from the control unit and having a groove formed at one side thereof; It is characterized in that it comprises a display panel which is installed on the flange and made of a packing member for imparting watertightness between the cover and the stepped portion.

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The above objects, advantages and other features will become apparent from the following description with reference to the accompanying drawings. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

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1 is a view showing the groundwater observation sensor kit according to the present invention installed in the well through a measuring tube, Figure 2 is a cross-sectional view showing a groundwater observation sensor kit according to the present invention, Figure 3 is an exploded perspective view of Figure 2, FIG. 4 is an enlarged view of only the display panel in FIG. 1, and FIG. 5 is a cross-sectional view taken along the line I-I of FIG.

As shown in the figure, the sensor kit for groundwater observation according to the present invention is charged through the water level measuring tube (5) pre-installed in the well (1) to measure the water level, water temperature, electrical conductivity of the groundwater, and the measured signal It is for transmitting to the display panel 110 which is installed outside the well 1, that is, on the ground. Reference numeral 2 denotes an underwater motor pump for pumping groundwater, and reference numeral 3 designates the groundwater pumped by the underwater motor pump 2 while supporting the underwater motor pump 2. The groundwater pumping pipe for discharging to outside is shown.

Such a sensor kit for groundwater observation according to the present invention includes sensors 10 for measuring groundwater level, water temperature, and electrical conductivity, and control means 20 electrically connected to the sensors 10. It is roughly divided into a case body 30 for wrapping and protecting the sensors 10 and the control means 20.

The sensors 10 are composed of a temperature sensor for measuring the water temperature of the groundwater, a water level sensor in the form of a pressure sensor for measuring the water level of the groundwater, and two electrode rods for measuring the electrical conductivity of the groundwater. The control means 20 is electrically connected to such sensors 10 to convert the measurement signal transmitted to the sensors 10 into digital signals to the display panel 110 through a communication cable 40. It is in charge of the function to print. The electrodes measure the electrical conductivity of the groundwater to check for contamination.

The control means 20 constitutes a circuit on a PCB, controls the input / output of the measurement signal through a built-in microprocessor, and controls the built-in D / A converter (not shown) to control the sensors 10. The measured signal, which is an analog signal transmitted from), is converted into a digital signal. The converted measurement signal is transmitted to the display panel 110 through the communication cable 40 electrically connected to the output interface. The control means 20 preferably uses RS485 communication for smooth communication with the display panel 10 through the communication cable 40 in the well 1 of 200-300m depth.

The case body 30 serves to cover and protect the sensors 10 and the control means 20 from the groundwater tightly. The case body 30 has a body 31. The body 31 has a cylindrical shape with both ends open, and the control cable 20 is mounted therein while drawing out the communication cable 40 at one end.

The connection member 32 is coupled to one end of the body 31. The connecting member 32 has a cross shape having a ring-shaped protrusion 32a formed in the middle thereof, and one side thereof is coupled to one end of the body 31 from the ring-shaped protrusion 32a. The connecting member 32 is preferably screwed to one end of the body 31, the female thread formed therein by forming a male screw on one side from the annular projection (32a). The connecting member 32 forms a first through hole 32b penetrating both ends therein to be fitted on the communication cable 40 drawn out from one end of the body 31, and thus the body 31. Is combined at one end. In addition, the first packing member 33, which is made of an O-ring resin material, is provided to provide watertightness with respect to the ground water at the coupling portion. The connecting member 32 is provided with a watertightness by forming a groove 32c in the coupling portion thereof and being coupled to one end of the body 31 with the first packing member 33 inserted in the groove 32c. .

The first cap portion 34 is coupled to the other side from the annular projection 32a of the connection member 32. The first cap portion 34 forms a second through hole 34a penetrating both ends thereof and is coupled to the connection member 32 in a state of being fitted on the communication cable 40 withdrawn from the connection member 32. do. The first cap portion 34 is preferably drawn out while fixing the communication cable 40 is formed to be narrow as the draw diameter for drawing out the communication cable 40 as possible as the communication cable 40. The first cap portion 34 is preferably screwed with the male screw formed on the other side from the annular projection (32a) of the connecting member 32 to form a female screw therein.

A wedge-shaped watertight member 35 is installed between the first cap 34 and the connection member 32. The watertight member 35 forms a third through hole 35a therein so that the communication cable is drawn out from the connecting member 32 before the first cap 34 is coupled to the connecting member 32. When the first cap 34 is coupled to the connecting member 32 in the fitted state on the 40, it is installed therebetween. The first cap portion 34 and the connecting member 32 are formed to have the same shape as the watertight member 35 when the first and second through holes 32b and 34a face each other. The watertight member 35 is fitted to the wall. The watertight member 35 installed as described above provides watertightness between the first cap 34 and the connection member 32 to block groundwater from penetrating. The watertight member 35 is preferably made of a fluororesin PTFE (Poly Tetra Fluoro Ethylene) (trade name 'Teflon') having characteristics such as non-tackiness, excellent insulation stability, and low coefficient of friction.

In addition, between the watertight member 35 and the connecting member 32, it is preferable that a second packing member 36, which is made of an O-ring resin material, is provided to further provide watertightness. The second packing member 36, along with the watertight member 35, reliably blocks the groundwater from penetrating between the first cap 34 and the connection member 32. As such, the watertight member 35 and the second packing member 36 are installed in duplicate between the first cap 34 and the connecting member 32 to block the penetration of groundwater. Because it is the passing side. That is, since the withdrawal aperture of the first cap portion 34 which draws out the communication cable 40 is larger than the diameter of the communication cable 40, groundwater can be penetrated into the gap so that the first cap portion 34 is large. ), The watertight member 35 and the second packing member 36 are provided between the connecting member 32 and the connecting member 32 so as to prevent the groundwater from penetrating.

And the other end of the body 31 is coupled to the second cap portion 38. The second cap portion 38 is coupled to the other end of the body 31 to form a U-shape while mounting the sensors 10 electrically connected to the control means 20. The second cap portion 38 is preferably threaded to the other end of the body 31 is formed with a female screw therein to form a male screw. In order to impart watertightness to the coupling, the third packing member 39 having an O-ring shape is installed at the other end of the body 31 and the coupling portion of the second cap portion 38. The second cap portion 38 is provided with a groove (38a) in the coupling portion is coupled to the other end of the body 31 while inserting the third packing member 39 in the groove (38a) to impart water tightness have.

The case body 30 covers and protects the sensors 10 and the control means 20 tightly from groundwater, and a pressure of 20-30 kg / cm 2 in the well 1 of 200-300m depth. Made to withstand In addition, the case body 30 is manufactured to have a size of 180 mm, and is manufactured to have a diameter of 18 mm so that the case main body 30 can be directly inserted into the measuring tube 5 installed in the well 1.

Such a sensor kit of the present invention has a size that can be directly inserted into the measuring tube (5) pre-installed in the well (1), and also converts the signals measured by the sensors (10) into a digital signal in itself Unlike the conventional one, the installation of the well 1 in which the groundwater submersible pump 2 is charged is convenient.

4 and 5, the present invention provides the display panel 110 having excellent water tightness against immersion. It is provided with a conventional control unit 101 having a display window (not shown) for processing the measurement signal of the sensors 10 transmitted from the control means 20 to be displayed to the outside, and the cylindrical body having only one surface opened. The control unit 101 is embedded therein, and the front surface 103a is separated from the first housing 103 and the flange 103b, which are formed to be transparent to the display window and have a flange 103b formed on one surface thereof. The receiving groove 107b having a lid 105 for closing the opened one surface of the first housing 103 and a stepped portion 107a from the lower side to the inner side by forming a cylindrical body having a closed interior by being coupled to each other. And a second housing 107 for accommodating the first housing 103 while seating the flange 103b having the lid 105 coupled to the receiving groove 107b to the step portion 107a. Is installed on the flange 103b and stepped with the cover 105 The display panel 110 is manufactured to have a resin packing member 109 for imparting watertightness to the portion 107a so as to have excellent watertightness against immersion.

In this case, the first housing 103 is provided with a plate such as glass on the front surface (103a) so as to see the display window from the outside, and to form a groove (not shown) in the upper and lower portions of the flange 103b, respectively. The cover 105 and the stepped portion 107a are fitted with the packing member 109 in the grooves, thereby providing watertightness therebetween. The cover 105 is coupled to the flange 103b separately through the bolt member 111, and the bolt housing 111 is also screwed to the stepped portion 107a so that the first housing 103 is connected. It is coupled to the second housing 107. In addition, as the cover 105, one made of tempered glass is used. The enclosed space of the second housing 107 serves to more securely protect the control unit 101 which is protected by the first housing 103 from external shock.

On the other hand, a fan 113 for cooling the heat generated by the controller 101 is provided on the left side of the second housing 107. The second housing 107 forms a groove portion 107c on the left side of the second housing 107 to accommodate the fan portion 113, and installs the fan portion 113. The fan portion 113 includes a motor and a fan. The heat generated by the controller 101 is cooled by rotating the gas in a manner of discharging the gas to the outside.

As described above, according to the present invention, the sensors for measuring the water level, water temperature, and electrical conductivity of the groundwater are mounted in a single body having excellent watertightness, and the measurement signal transmitted from the sensors in the body is converted into a digital signal to external Because it is totally compact, it can be conveniently installed through the measuring tube inserted into the well, and the external display panel is kept safe by keeping water tightness from snow or boiling. It has the effect of making it possible.

Claims (6)

It is located in the measuring tube supported on the well and detachably supports the communication cable, and has an open cylindrical shape at both ends, which forms a space in which the sensor and the control means including the D / A converter can be compactly installed. One side is coupled to one end of the body from the annular projection while forming a cross shape having an annular projection formed in the middle and a body for mounting the control means therein while drawing out the communication cable at one end. There is a connecting member formed with a first through-hole for inserting the communication cable, and the second through-hole is coupled to the other side from the annular projection of the connection member and inserted therein through the communication cable drawn out from the connection member The first cap is formed and is installed between the first cap and the connection member while the communication cable is sandwiched therebetween. A case body comprising a wedge-shaped watertight member made of a resin material for imparting properties, and a U-shaped second cap portion coupled to the other end of the body with the control means and sensors mounted thereon; And A control unit having a display window for processing the measurement signals of the sensors transmitted from the control means and displaying them to the outside, which is installed to be exposed to the outside of the well spaced away from where the case main body is located; And a first housing having a flange formed on one surface of the front surface of which the display window is formed to be transparent to the display window, and being coupled to the flange separately to close the opened surface of the first housing. A housing having a lid and a cylindrical body having an enclosed interior to form a receiving groove having a stepped portion from the bottom toward the inside thereof, and accommodating the first housing while seating the flange having the lid coupled to the receiving groove at the stepped portion; A second housing having a fan unit for cooling the heat generated from the control unit and having a groove formed at one side thereof; The sensor kit for groundwater observation, which is installed on the flange and comprises a display panel made of a packing member for imparting watertightness between the cover and the stepped portion. delete delete delete delete delete

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