KR100924439B1 - Confirmation device for internal state of water-tank - Google Patents

Abstract

PURPOSE: An apparatus for checking internal condition of water tank is provided to check contamination state through see-through window and easily remove foreign materials of the see-through window. CONSTITUTION: An apparatus for checking internal state of water tank comprises a device(200) for removing foreign materials, which prevents attachment of foreign material on a see-through window(100). The device for removing foreign material comprises: a guide pipe(210) which connects from outside of the see-through window to inside; a rotation shaft(220) which is extended; and a wiper member(232) which is closed to inside of the see-through window and is rotated.

Description

Confirmation device for internal state of water-tank}

The present invention relates to a water tank internal condition checking apparatus, and more particularly, it is possible to easily check the inside of the water tank and check the state of the water contained in the water tank without the operator entering the water tank and check the contamination status easily. The present invention relates to a water tank internal condition checking device capable of cleaning the water tank at an appropriate time, so that clean water can always be supplied sanitarily.

In general, water tanks have been installed in large water tanks such as large buildings or apartments to store a large amount of water. Concrete tanks, stainless steel, glass fiber reinforced plastic (FRP) It is manufactured from a wide variety of materials such as Glass Reinforced Plastics panels and Sheet Molding Compound panels.

In particular, SMC is a type of molding material for manufacturing glass fiber reinforced plastic (FRP), and when molded under proper heating and pressurization conditions, it not only shows excellent mechanical properties but also has excellent corrosion resistance and formability. As the material is spotlighted, its range of use is gradually increasing, and many types of water tanks are being built with SMC panels.

In addition, various water tanks are installed in apartments, factories, industrial facilities, etc., so that drinking water and industrial water can be stably supplied even in single water. Such a water tank is a water tank made of stainless steel panels, and is widely used due to its high capacity and strong strength and impact.

Here, the water tank made of stainless steel panels is formed by welding several panels to each other, and each panel is welded to and supported by stainless steel posts arranged vertically and horizontally.

Therefore, the conventional water tank made of such a variety of materials is opaque the entire surface is generally not able to grasp the internal state of the water tank at all, unless opening the manhole formed in the upper portion of the water tank into the interior. Therefore, in order to check the internal state of the water tank, it was very difficult for the worker to remove all the water in the water tank, inspect and clean it, or to identify the contamination state of the water contained in the water tank. In order to confirm the cleaning and contamination status, there was no choice but to carry out the schedule such as regular regular inspection, cleaning and checking the contamination status, and during this period, the use of water tanks was limited.

Such inspection, cleaning, and pollutant condition inside the water tank are regularly inspected and cleaned by checking the timing of water tank inspection, cleaning, and pollutant condition in the case of apartment houses such as apartments. Although contaminants are checked, contaminated townhouses, multi-family homes and private homes are not usually involved with professional management companies, so they are often left uncleaned for long periods of time. Pollution is emerging as a serious and invisible problem that is a major detriment to public health.

In particular, one of the biggest reasons why people do not pay attention to the cleaning of the water tank in the general household is that light transmission through the water tank causes water pollution due to green algae, such as moss, caused by light. Because it is made of an opaque material that cannot penetrate the inside of the tank, the inside of the water tank cannot be easily observed. In other words, since no information on the internal condition can be obtained from the opaque water tank, it is impossible to realize the seriousness of the contamination of the water tank at all, and it is impossible to immediately check, clean, check the state of the phase, and contaminate the water. .

Moreover, the inside of the water tank has a considerably dark environment due to the opaque material, so even if the worker opens the manhole from time to time to check, clean, and check the sanitary condition, it is difficult to observe properly. There was a problem that the status check was difficult.

Accordingly, the present invention has been made to solve the problems described above, by providing a water tank having a structure that can easily observe the internal contamination at any time if necessary, the water tank without entering into the water tank The internal inspection and contamination status can be easily checked through the viewing window so that the water tank can be cleaned immediately at the appropriate time by contributing to hygiene and clean water at all times, thus contributing to national health. It is an object of the present invention to provide a water tank internal condition checking apparatus that can easily check the condition of the tank, so that the problem can be immediately dealt with as the water tank is quickly identified, thereby preventing unnecessary cost increase.

In addition, the present invention, if the inside of the water tank is impossible to check due to the adhesion of steaming, moss, algae, etc. according to the temperature difference in the viewing window, it is possible to easily remove the operator by the foreign matter removal means to easily check inside the water tank. By illuminating the inside of the water tank and illuminating the inside of the water tank made of opaque material, it is possible to more clearly check the internal state of the water tank and to identify the contamination state of the water contained in the water tank. Another object is to provide a tank internal condition check device.

In order to achieve the above object, the water tank internal condition checking apparatus according to the present invention is flanged to maintain watertightness in one side of the water tank 10 in the water tank, and the operator can determine the state of the water tank and the state of the water contained in the water tank. A viewing window 100 provided to be visible with the naked eye; Foreign matter removal means (200) for removing foreign matter contained in the water contained in the water tank (10) attached to the viewing window (100); Illumination means (300) is formed to extend upwardly inclined upward from the outside of the viewing window (100) to the inside of the water tank (10), and to irradiate light so as to easily check the internal state and the water state of the water tank; Reflecting means 400 which is built in the water tank (10) to reflect the light irradiated into the water tank (10) through the lighting means 300 to be refracted into the see-through window (100); And a control panel 500 provided at one side of the water tank 10 and provided to control the power supply and the lighting of the lighting means 300.

Here, the foreign material removing means 200 includes a guide pipe 210 penetrating the center from the outside of the viewing window 100 to the inner surface; A rotating shaft 220 fitted into the guide pipe 210 and extending into the viewing window 100; The wiper member 232 is provided to be in close contact with the inner surface of the see-through window 100, and is mounted on one end of the rotating shaft 220 extending into the see-through window 100 and the inner surface of the see-through window 100 in accordance with the rotation of the rotating shaft. A wiper support 230 rotated at the side; A handle (240) coupled to the other end of the rotating shaft (220) outside the viewing window (100) and rotating the rotating shaft (220) to rotate the wiper support (230); And an elastic spring 250 coupled to an inner edge of the guide pipe 210 and applying an elastic force to the wiper support 230 to be in close contact with the viewing window 100. Here, the wiper member 232 is preferably Teflon.

On the other hand, the lighting means 300 is formed in the longitudinal direction of the cylindrical shape with both ends penetrating, one end of the main body housing 310 is formed with a base flange 312; A light transmission window 320 which is watertightly seated on the base flange 312 of the main body housing 310; A cover flange 330 which is covered along the outer periphery of the floodlight window 320 and is flange-coupled to the base flange 312 so that the floodlight window 320 is fixed while maintaining the watertightness; An LED lamp 340 that is fitted to the inside of the main body housing 310 toward the base flange 312 and electrically coupled to the control panel 500; It is characterized in that it is formed; water-tightly coupled to the other end of the main body housing 310 is a waterproof closing cover 350 provided to prevent the ingress of foreign matter from the outside.

Furthermore, the reflecting means 400 is provided in the water tank 10, and reflects the light irradiated into the water tank from the lighting means 300, the worker visually through the viewing window 100 through the water tank It is formed to facilitate the state of the inside and the state of the water, the "L" shaped fixing bracket 410 is bolted to the inner surface of the water tank (10); A reflector 420 provided to reflect the light emitted from the luminaire 300 toward the viewing window 100; One end is ball joint coupled to the other end of the fixing bracket 410, the other end is fixedly coupled to the reflector 420, the angle adjustment bracket provided to adjust the reflection angle of the light irradiated into the water tank by the lighting means 300 430; characterized in that formed. Here, the reflector 420 is preferably one of convex or concave shape.

On the other hand, it is preferable that the thermal insulation cover 600 which is hinged to prevent the freezing and condensation of the viewing window 100 outside the viewing window 100 is further formed, the insulating cover 600 is the viewing window 100 The outer cover 610 is hinged to one side, the outer cover 610 is filled with a heat insulating material 620 to prevent freezing and condensation inside, the operator can easily open and close the outer cover 610 Opening and closing handle 630 is characterized in that it is formed. Here, the insulation 620 is preferably formed of urethane.

The present invention can easily check the inspection and contamination status inside the water tank through the sight window without entering into the water tank can be immediately checked to clean the water tank at the appropriate time, which is always possible to supply clean water hygiene There is an advantage.

In addition, the present invention, if the inside of the water tank is impossible to check due to the adhesion of steaming, moss, algae, etc. according to the temperature difference in the viewing window, it is possible to easily remove the operator by the foreign matter removal means to easily check inside the water tank. There is one advantage.

Furthermore, the present invention is provided with a lighting means inside the water tank to illuminate the inside of the water tank in a dark environment made of an opaque material, it is easier to check the internal state of the water tank more clearly, grasp the contamination state of the water contained in the water tank This has a possible effect.

With reference to the accompanying drawings an embodiment of the water tank internal state check device according to the present invention as described above will be described in detail.

1 is an overall perspective view of the water tank internal condition checking apparatus according to the present invention, Figure 2 is an exploded perspective view of the main portion of the foreign matter removal means of the water tank internal condition checking apparatus according to the present invention, Figure 3 is a water tank according to the present invention Figure 4 is a side cross-sectional view of the foreign matter removing means of the internal state check device, Figure 4 is an exploded perspective view of the main portion of the lighting means of the internal water check device of the water tank according to the invention, Figure 5 is a lighting means of the internal state check device of the water tank according to the present invention 6 is an exploded perspective view of a main portion of a reflecting means of the water tank internal condition checking apparatus according to the present invention, FIG. 7 is a cross-sectional side view of the reflecting means of the water tank internal condition checking apparatus according to the present invention, and FIG. Sectional view of the working condition of the water tank internal condition according to

The water tank internal condition checking apparatus according to the present invention can easily check the inside of the water tank and check the contamination state without entering the water tank through the viewing window so that it can be immediately checked to clean the water tank at the appropriate time It is formed so that the supply of clean water at all times hygienically, as shown in Figures 1 and 8, the water tank 10, see-through window 100, foreign matter removal means 200, lighting means 300, reflecting means ( 400), and a control panel 500.

The water tank 10 is formed in a rectangular shape, is installed inside and outside the building to receive water, and a manhole (not shown) is installed on the top, and has a structure of a conventional water tank. Therefore, in order to clearly explain the configuration of the present invention, a detailed description of the configuration of the water tank is omitted.

The see-through window 100 is provided such that the operator can visually check the state of the water tank 10 and the state of the water contained therein. Here, the see-through window 100 is flanged to maintain the watertight on one side of the water tank 10 described above. Flange coupling is a conventional flange coupling, a circular flange protrudes on one side of the water tank, the circular flange cover is coupled to the flange, the sight window 100 is located between the flange and the flange cover is a conventional watertight Packing for the corresponding will be combined.

2 and 3, the foreign material removing means 200 is included in the water contained in the seam, moss, algae, water tank 10 according to the temperature difference on the inner surface of the see-through window 100 described above. By removing the adhered foreign matters are provided to enable the operator to easily check the internal state and the contamination state of the water tank. Here, the foreign material removing means 200 is composed of a guide pipe 210, a rotating shaft 220, a wiper support 230, a handle 240, an elastic spring 250.

The guide pipe 210 guides the rotating shaft 220 to be described later so that the rotating shaft 220 can be smoothly rotated, and is combined with the wiper support 230 to be described later to remove foreign substances attached to the inner surface of the viewing window 100. Guide the wiper shaft to rotate for removal. Here, the guide pipe 210 is formed through the center from the outside of the viewing window 100 to the inner side. At this time, the guide pipe 210 is preferably designed to withstand the water pressure inside the water tank. In addition, it is preferable that a plurality of packings (not shown) are coupled to the inner edge of the guide pipe 210 so that the water inside the water tank 10 does not leak when the rotating shaft 220 to be described later is rotated.

The rotating shaft 220 is formed to remove the foreign matter attached to the inner surface of the see-through window 100 by rotating the wiper support 230 to be described later, the guide pipe 210 is fitted to the inner edge of the It extends into the see-through window 100.

The wiper support 230 is formed in the form of a bar (BAR) is in close contact with the inner surface of the viewing window 100, and formed to remove the foreign matter attached to the inner surface of the viewing window while rotating by the above-described rotating shaft 220, the viewing window 100 is provided with a wiper member 232 in close contact with the inner surface to remove foreign substances. Then, it is mounted on one end of the rotating shaft 220 extending into the viewing window 100 and rotates on the inner surface side of the viewing window 100 in accordance with the rotation of the rotating shaft. Here, the wiper support 230 is preferably formed to be the same as the diameter of the inner surface of the viewing window (100). On the other hand, the wiper member 232 is preferably formed of a Teflon that can be used semi-permanently without deformation or alteration even in the environment (temperature, acid, basic, chlorine gas, etc.) conditions inside the water tank.

The handle 240 is coupled to the other end of the rotating shaft 220 outside the viewing window 100. That is, the handle 240 is rotated about the rotation axis 220 by the operator by the hand by the operator to rotate the wiper support 230, the foreign matter on the inner surface of the viewing window can be easily removed, so that the operator 10) It is easy to check inside and check the contamination status of water.

The elastic spring 250 is provided to apply an elastic force such that the wiper support 230 is in close contact with the inner surface of the see-through window 100, and is coupled to the inner edge of the guide pipe 210. That is, the wiper support 230 is coupled to the inner edge of the guide pipe 210 and pushes the rotating shaft 220 by the elastic force to the outside of the viewing window 100 with respect to the viewing window 100 as a reference point. ) Close to the inner surface.

As shown in Figure 4 and 5, the lighting means 300 illuminates the dark environment inside the water tank made of an opaque material brightly so that the inside of the water tank and the contamination state of the water can be checked with the naked eye of the operator It is provided, and is formed to extend upwardly inclined upward from the outside of the viewing window 100 to the inside of the water tank 10. Here, the lighting means 300 is composed of a main body housing 310, a floodlight 320, a cover flange 330, LED lamp 340, waterproof cover 350.

The main body housing 310 is formed to extend in the longitudinal direction of the cylindrical both ends are formed through, the base flange 312 is formed on the outer periphery. Here, one end of the body housing 310 is formed with the base flange 312 is inserted into the water tank 10, the other end is located outside the water tank (10).

The floodlight 320 is watertightly seated on the base flange 312. Here, the floodlight 320 is formed of a transparent tempered glass so that the light of the LED lamp 340 to be described later is irradiated into the water tank 10, the short circuit of the LED lamp 340 to be electrically coupled, the short circuit It is to be watertightly bonded to prevent the back. That is, one end of the above-mentioned main body housing 310 is inserted into the water tank 10 to prevent leakage of water as it is in direct contact with the water contained in the water tank 10.

The cover flange 330 is covered along the outer periphery of the floodlight window 320 described above, and is flange-coupled to the base flange 312 so that the floodlight 320 is fixed while maintaining the watertightness. That is, water is penetrated into the LED lamp 340 which will be described later in the body housing 310 while the floodlight 320 maintains watertightness by the flange coupling of the cover flange 330. To prevent.

The LED lamp 340 is illuminated by irradiating light to a dark environment inside the water tank 10, thereby brightening the inside of the water tank, and thus is provided to make it easier to check the state of the water tank and the contamination state of the water. . Here, the LED lamp 340 is fitted to the inside toward the base flange 312 side of the main body housing 310. And, it is controlled by being electrically coupled with the control panel 500 to be described later.

The waterproof closing cover 350 is watertightly coupled to the other end of the body housing 310 described above, and is provided to prevent foreign matter from penetrating from the outside. That is, the waterproof finish cover 350 is provided to protect from electrical risks such as grounding, short circuit, water leakage, etc. by the change of the external environment due to rain, snow, dust, etc., as electrically connected to the control panel 500 to be described later. do.

As shown in FIGS. 6 and 7, the reflecting means 400 reflects the light irradiated into the water tank 10 through the lighting means 300 to be refracted to the see-through window 100. It is built in the tank 10. That is, the reflecting means 400 concentrates toward the above-mentioned see-through window 100 so that light inside the water tank is scattered by the lighting means so that the state of the water tank and the contamination state of the water can be clarified. It is formed so as to grasp, it is composed of a fixing bracket 410, a reflector 420, the angle adjustment bracket 430.

The fixing bracket 410 is formed by bending the plate body, as shown in the figure, is formed in the "L" shape, it can be produced in various forms. Here, the fixing bracket 410 is bolted to be disassembled and assembled by an operator on one surface of the water tank (10).

The reflector 420 reflects the light emitted from the above-described lighting means 300 toward the see-through window 100 so that the light is concentrated without scattering, so that the state of the water tank and the contamination state of the water are clearly provided. do. Here, the reflector 420 is preferably one of convex or concave shape. That is, convex and concave are selectively installed according to the position where the reflector 420 is installed, so that when the state of the water tank 10 is checked, the focus of the illumination is clarified so that an operator can make an accurate judgment.

The angle adjustment bracket 430 is formed so that the light by the lighting means 300 is focused toward the viewing window 100 when the operator visually checks the viewing window 100 by adjusting the angle of the reflector 420 described above. One end is ball joint coupled to the other end of the fixing bracket 410 described above, and the other end is fixedly coupled to the reflector 420.

The control panel 500 is provided on one side of the water tank 10 outside, and is provided to control power supply and lighting to the lighting means 300. Here, the control panel 500 does not continuously supply the power supply to the above-described LED lamp 340, when the operator checks the see-through window 100, or when the operator closes to the see-through window 100 side automatically power This may be supplied and controlled so that the LED lamp 340 lights up.

On the other hand, as shown in Figure 1 and 8, the thermal cover 600 is further formed to the outside of the see-through window 100 described above. Here, the insulation cover 600 is to prevent the freezing and condensation during the winter, it is preferably formed of urethane in order to protect the see-through window 100 from freezing cold outside air. Here, the thermal cover 600 is composed of an outer cover 610, the thermal insulation material 620, the opening and closing handle 630.

The outer cover 610 is provided to block light so that light transmitted from the outside is projected into the water tank 10 through the see-through window 100 to prevent habitat of green algae such as moss and algae in the water tank. Here, the outer cover 610 when the user grasps the state of the inside of the water tank and the contamination state of the water through the see-through window 100, it is preferable that the hinge operation to be easy to open and close without being removed separately.

The insulation 620 is provided to prevent freezing and condensation of the see-through window 100 due to a sudden temperature change in winter, and is fitted to correspond to the shape of the outer cover 610 described above. Here, the insulation 620 is preferably formed of urethane.

The opening and closing handle 630 is formed on the outer surface of the outer cover 610 described above to allow the operator to open and close conveniently when opening and closing the outer cover 610 so that the winter worker inside the water tank through the viewing window 100. It is provided to check the condition and pollution of water.

Through such a configuration, the water tank internal condition checking apparatus according to the present invention first moves to the viewing window 100 to check the internal state of the water tank 10 and the contamination state of the water. At this time, when contaminants, lichens, algae, and sea fog caused by temperature differences occur in the viewing window 100, it is difficult for an operator to observe the inside of the water tank through the viewing window 100.

Therefore, the worker rotates the handle 240 of the foreign matter removing means 200 by an external force. Thereafter, when the handle 240 is rotated by the worker, the rotating shaft 220 rotates together, and the wiper support 230 formed at one end of the rotating shaft 220 rotates along the inner surface diameter of the viewing window 100. At this time, the wiper member 230 is a wiper member 232 formed of Teflon is in close contact with the inner surface of the see-through window 100, the see-through window in which contaminants, lichens, algae, steaming due to the temperature difference, etc., included in water (100) By keeping the inner surface clean, it is easy for the operator to visually check the state of the water tank 10 and the state of water contamination.

Next, when the operator observes the inside of the water tank 10 through the see-through window 100, the environment inside the water tank 10 is creating a dark environment, the operator manipulates the control panel 500, the lighting means 300 The power supply is supplied to the LED lamp 340 of "

Then, the light is shining into the water tank 10 in accordance with the lighting of the LED lamp 340, thereby making it easier for the operator to visually check the inside of the water tank (10). However, at this time, the light of the LED lamp 340 is scattered by the water contained in the water tank 10, so that the state of the water tank 10 and the degree of contamination of the water is not accurately confirmed.

Therefore, the light of the LED lamp 340 is concentrated on the reflector 420 of the reflecting means 400, the reflector 420 is adjusted in advance so that the light is refracted toward the viewing window 100 by the angle adjustment bracket 430 Since the light irradiated into the water tank 10 through the LED lamp 340 is refracted by the reflector 420 to the see-through window 100, the operator can clearly see the state inside the water tank 10 and the contamination state of the water. You can check.

That is, according to the operation of the water tank internal condition check device according to the present invention according to the above-described action is confirmed the state of contamination of the water contained in the water tank 10 is made clearly, the state inside the water tank is also made clear immediately It is possible to take measures according to the pollution degree and the condition of the water in the tank 10, and it is possible to maintain the water tank 10 in a clean state at all times for hygiene, so that the supply of clean water is possible, and further contribute to the increase of national health. It is obvious and can be checked from time to time to prevent excessive expenses due to contamination and damage due to neglect of the sanitary condition of the water tank.

On the other hand, in the detailed description of the present invention has been described with respect to specific embodiments, to those skilled in the art that various modifications are possible without departing from the scope of the invention, such modifications are claimed It is in the range of a base material.

1 is an overall perspective view of a water tank internal condition checking apparatus according to the present invention.

Figure 2 is an exploded perspective view of the main portion of the foreign matter removal means of the water tank internal condition checking apparatus according to the present invention.

Figure 3 is a side cross-sectional view of the foreign matter removal means of the water tank internal condition checking apparatus according to the present invention.

Figure 4 is an exploded perspective view of the main portion of the lighting means of the water tank internal condition checking apparatus according to the present invention.

5 is a side cross-sectional view of the lighting means of the water tank internal condition checking apparatus according to the present invention.

Figure 6 is an exploded perspective view of the main portion of the reflecting means of the water tank internal condition checking apparatus according to the present invention.

7 is a side cross-sectional view of the reflecting means of the water tank internal condition checking apparatus according to the present invention.

Figure 8 is a side cross-sectional view of the use state of the water tank internal condition checking apparatus according to the present invention.

* Description of the major symbols in the drawings *

100: see-through window 200: foreign matter removal means

210: guide pipe 220: rotating shaft

230: wiper support 232: wiper member

240: handle 250: elastic spring

300: lighting means 310: main body housing

312: base flange 320: floodlight

330: cover flange 340: LED lamp

350: waterproof finish cover 400: reflecting means

410: fixing bracket 420: reflector

430: angle adjustment bracket 500: control panel

600: thermal cover 610: outer cover

620: insulation 630: opening and closing handle

10: water tank

Claims (9)

delete A sight window (100) coupled to one side of the water tank (10) to maintain watertightness, and provided so that an operator can visually check the state of the water tank and the state of the water contained therein; Foreign matter removal means (200) for removing foreign matter contained in the water contained in the water tank (10) attached to the viewing window (100); Illumination means (300) is formed to extend upwardly inclined upward from the outside of the viewing window (100) to the inside of the water tank (10), and to irradiate light so as to easily check the internal state and the water state of the water tank; Reflecting means 400 which is built in the water tank (10) to reflect the light irradiated into the water tank (10) through the lighting means 300 to be refracted into the see-through window (100); A control panel 500 provided at one side of the water tank 10 outside and provided to control the power supply and the lighting of the lighting means 300; The foreign material removing means 200 includes a guide pipe 210 penetrating a center from the outside of the viewing window 100 to the inner surface; A rotating shaft 220 fitted into the guide pipe 210 and extending into the viewing window 100; The wiper member 232 is provided to be in close contact with the inner surface of the see-through window 100, and is mounted on one end of the rotating shaft 220 extending into the see-through window 100 and the inner surface of the see-through window 100 in accordance with the rotation of the rotating shaft. A wiper support 230 rotated at the side; A handle (240) coupled to the other end of the rotating shaft (220) outside the viewing window (100) and rotating the rotating shaft (220) to rotate the wiper support (230); And an elastic spring (250) coupled to an inner edge of the guide pipe (210) and applying an elastic force such that the wiper support (230) is in close contact with the see-through window (100). The method of claim 2, The wiper member 232 is a water tank internal state check device, characterized in that the Teflon. The method of claim 2, The lighting means 300 is formed in the longitudinal direction of the cylindrical shape with both ends penetrating, one end of the main body housing 310 is formed with a base flange 312; A light transmission window 320 which is watertightly seated on the base flange 312 of the main body housing 310; A cover flange 330 which is covered along the outer periphery of the floodlight window 320 and is flange-coupled to the base flange 312 so that the floodlight window 320 is fixed while maintaining the watertightness; An LED lamp 340 that is fitted to the inside of the main body housing 310 toward the base flange 312 and electrically coupled to the control panel 500; And a watertight closing cover (350) which is watertightly coupled to the other end of the main body housing (310) to prevent foreign substances from penetrating from the outside. The method of claim 2, The reflecting means 400 is provided in the water tank 10, and reflects the light irradiated from the lighting means 300 into the water tank, the worker through the viewing window 100 with the naked eye inside the water tank. It is formed to make it easy to check the state of the water and A fixed bracket 410 having an “L” shape that is bolted to one surface of the water tank 10; A reflector 420 provided to reflect the light emitted from the luminaire 300 toward the viewing window 100; One end is ball joint coupled to the other end of the fixing bracket 410, the other end is fixedly coupled to the reflector 420, the angle adjustment bracket provided to adjust the reflection angle of the light irradiated into the water tank by the lighting means 300 Water tank internal condition check device, characterized in that formed as (430). The method of claim 5, The reflector 420 is a water tank internal state check apparatus, characterized in that any one of convex shape or concave shape. delete The method of claim 2, Insulating cover 600 is hinged to prevent the freezing and condensation of the see-through window 100 outside the see-through window 100 is further formed, The insulating cover 600 is hinged to the outer cover 610 to one side of the viewing window 100, the outer cover 610 is filled with a heat insulating material 620 for preventing freezing and condensation, the outside Water tank internal state check device, characterized in that the opening and closing handle 630 is formed so that the operator can easily open and close the cover (610). The method of claim 8, The thermal insulation material 620 is a water tank internal state check device, characterized in that formed of urethane.

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