KR101164121B1 - Flowmeter that detachable and maintenance are easy is equipped closed underground water upper protective tube - Google Patents

Abstract

PURPOSE: A geothermal protection pipe for sealing underground water having a detachable and repairable flowmeter is provided to rapidly confirm the state of a flowmeter by separating the flowmeter from a gate body without additional equipment. CONSTITUTION: A geothermal protection pipe for sealing underground water having a detachable and repairable flowmeter comprises a casing, a casing connection body, a gate body(8), a pump pipe(15), an underwater motor pump, a pulling unit, and a flowmeter(30). The casing is buried in the top of a geothermal hole. The casing connection body is coupled to the bottom of the casing. The gate body is installed inside the casing connection body and guides underground water pumped from the geothermal hole to a water pipe. The pump pipe is installed inside the geothermal hole and connected to the gate body. The underwater motor pump pumps the underground water inside the geothermal hole to the gate body. The pulling unit attaches and detaches the gate body on/from the casing connection body. The flowmeter is coupled to the bottom end of the pulling unit.

Description

Flowmeter that detachable and maintenance are easy is equipped closed underground water upper protective tube}

The present invention relates to a sealed groundwater geothermal upper protective tube equipped with a flowmeter that is easy to attach and detach, and more particularly, it is possible to inspect the abnormality of the flowmeter in a very simple and quick manner, and to make accurate flow measurement. And a sealed groundwater geothermal upper protective tube equipped with a detachable and easy-to-service flowmeter that protects the capacitive sensor from water pressure generated when pumping, as well as minimizing abrasion of the shaft.

Generally, in order to develop and use rock groundwater, the groundwater is excavated to a depth of 100m or more to develop a porous groundwater hole in which groundwater is produced, and a groundwater facility consisting of an underwater motor pump and a pumping pipe is installed therein to spread groundwater. do.

The pumping facility installed as described above has its upper end exposed to the ground. In order to prevent damage and freezing of the pumping facility exposed to the ground, a conventional manhole-type upper protection facility was installed. However, these upper protection facilities had a problem that the volume is large and heavy, and construction, transportation and opening and closing are not easy.

Since 2003, various types of sealed groundwater overhead guards have been developed to improve non-functional overhead guards in the form of concrete manholes.

This closed upper protection facility is installed in a structure in which a steel casing is installed at the upper end of the groundwater hole developed by excavating the ground layer, and a certain space is formed at the upper end of the groundwater hole by fastening the sealed upper protection facility to the steel casing. .

In this sealed upper protection facility, a pumping facility including an underwater motor pump and pumping pipe, which is installed to pump groundwater into the groundwater hole, is fixed, and the groundwater that is pumped up is connected to the water supply pipe buried in the ground. do.

The sealed upper protection facility prevents damage and freezing of the pumping facilities, and seals the inside of the upper protection facility from the outside by the cover part provided at the upper part, thereby preventing the inflow of ground pollutants into the groundwater hole. To prevent groundwater pollution.

Therefore, these sealed upper protection facilities should use corrosion-resistant materials that are harmless to the water quality of the groundwater, and it is desirable to be installed as small as possible in order to secure practicality and economy in terms of manufacturing, installation and maintenance.

On the other hand, in the case of developing and using groundwater, the flowmeter prescribed by the Groundwater Act should be installed to check the groundwater usage. If a conventional flow meter is installed in an enclosed overhead protection facility, the production cost is greatly increased since the enclosed groundwater overhead protection facility must have a diameter of 400 mm or more, which is more than twice the groundwater excavation pore diameter.

In addition, since the flowmeter is installed at a depth below the freezing line in the space of the closed groundwater upper protection facility, it was very difficult to attach and detach the flowmeter.

That is, the flowmeter is provided in the pump pipe below the gate body so that the flow volume pumped along the pump pipe can be checked. Therefore, in order to check the abnormality of such a flow meter, it is necessary to lift and inspect all the gate body, pump pipe, and submersible motor pump using a lifting ring.The total weight is very heavy and cannot be lifted by manpower. The maintenance is very cumbersome, increasing time and cost.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide a sealed groundwater geothermal upper protective tube equipped with a detachable and easy-to-maintain flowmeter, which enables the inspection of abnormality of the flowmeter very simply and quickly.

Another object of the present invention is to provide a sealed groundwater geothermal upper protective tube equipped with a flowmeter that is easy to attach and detach and allow easy flow rate measurement.

Another object of the present invention is to provide a sealed groundwater geothermal upper protective tube provided with an easy-to-detach and easy-to-service flowmeter to minimize wear of the bearings and shafts.

Still another object of the present invention is to provide a sealed groundwater geothermal upper protective tube equipped with an easy-to-detach and easy-to-service flowmeter for protecting the capacitive sensor from water pressure generated during pumping.

In order to achieve the above object, the hermetically sealed groundwater geothermal upper protective tube provided with a flowmeter that is easily detachable and maintainable according to the present invention includes a casing buried in an upper portion of the groundwater hole or the geothermal hole; A casing connecting body coupled to the upper portion of the casing and having a cover coupled to the upper end thereof; A gate body installed inside the casing connecting body and guiding the ground water pumped from the ground water hole or the geothermal hole to be supplied to the water pipe; A water pump installed in the groundwater hole or the geothermal hole and having an upper end connected to the gate body; An underwater motor pump installed in the pumping pipe to pump the groundwater or the groundwater inside the geothermal hole to the gate body; The lower end portion is screwed to the upper end of the gate body lifting portion detachable from the gate body; The upper portion is coupled to the lower portion of the lifting portion and separated from the gate body by lifting the lifting portion separated with the lifting portion; flow rate meter; characterized in that consisting of.

Sealed groundwater geothermal upper protective tube with a detachable and easy-to-maintain flowmeter of the present invention for achieving the same object as described above, is coupled to the upper portion of the casing and the upper portion of the casing buried in the groundwater hole or geothermal hole A casing connecting body having a cover coupled to it, a gate body installed inside the casing connecting body and guided to supply groundwater pumped from a groundwater hole or a geothermal hole to a water pipe, and a gate body coupled to the upper portion of the gate body. In the sealed groundwater geothermal upper protective pipe which consists of a lifting part detachable inside the connecting body and guides the groundwater pumped by the submersible motor pump to be supplied to the water supply pipe side through the pump pipe and the gate body, wherein the lower part is the upper part of the gate body. To the gate body by lifting the lifting part And a pump pipe coupled to the gate body and the submersible motor pump are lifted together with the gate body and separated from the gate body to lift only the lifting part by rotating the lifting part horizontally. Inside the gate body, a flow meter is installed to check the pumping amount of groundwater pumped from the pump pipe to the gate body. The flow meter has an upper end coupled to the lower end of the lifting part. It is characterized in that it is provided to be separated from the gate body together.

Another feature of the hermetically sealed groundwater geothermal upper protective tube provided with a flowmeter that is easily removable and easy to maintain, the flowmeter has an upper body with a lower end screwed to the upper end of the gate body and an upper body screwed to the lower end of the lifting part. And, the upper end is screwed to the lower part of the upper body, the installation space is formed in the upper end, the lower body is located in the lower part of the pump pipe, and the lower body is installed to rotate inside the lower body and the upper part is installed of the lower body A shaft located in the space and having a lower end inside the pump pipe, a bearing installed inside the lower body to support rotation of the shaft, coupled to the lower end of the shaft to be rotated with the shaft and pumped from the pump pipe to the gate body Impeller rotated by groundwater to be located in the installation space of the lower body And a rotary disc coupled to the upper end of the shaft and rotating together with the shaft, and a capacitive sensor installed on the upper body and positioned at the lower end in the installation space of the lower body to sense the rotational speed of the rotary disc.

Another feature of the hermetically sealed groundwater geothermal upper protective tube provided with a flowmeter that is easily removable and easy to maintain, the lower body has a flat seating surface formed at the bottom of the installation space, and the bottom surface of the rotary disc is It is provided to be rotated in contact with the seating surface to prevent up and down shaking.

Another feature of the hermetically sealed groundwater geothermal upper protective tube provided with a flowmeter that is easily removable and easy to maintain, the bearing is provided as a Teflon bearing.

Another feature of the hermetically sealed groundwater geothermal upper protective tube with a flowmeter easy to detach and maintain the present invention, the upper body, the shaft is supported by the upper end of the shaft and the thrust transmitted to the rotary disc side to the pumping pressure of the groundwater shaft , Thrust bearings are installed to protect components such as rotary discs and capacitive sensors.

Another feature of the hermetically sealed groundwater geothermal upper protective tube provided with a flowmeter that is easily removable and maintainable according to the present invention, the cover is electrically connected to a capacitive sensor and converts and displays the electrical signal measured by the capacitive sensor. The display system is installed.

Another feature of the hermetically sealed groundwater geothermal upper protective tube provided with a flowmeter that is easily removable and easy to maintain, the casing connection body is provided with a panel support, and the upper end of the panel support is electrically connected to a capacitive sensor. The panel is provided with a flow meter for converting and displaying the electrical signal measured by the capacitive sensor.

The present invention as described above, the lifting portion, the lower end is fastened with a screw on the upper end of the gate body, when lifting the lifting portion, the water pipe coupled to the gate body and the gate body, the submersible motor pump is lifted together with the gate body, the lifting portion Rotating horizontally separates from the gate body to lift only the lifting part. In addition, a flowmeter is installed inside the gate body to check the pumping amount of the groundwater pumped from the pump pipe to the gate body, and the flowmeter is coupled to the lower end of the lifting portion, and the lifting portion is lifted after separating the lifting portion from the gate body. It is separated from the gate body with the part. Therefore, the sealed groundwater geothermal upper protective tube of the present invention, since the flowmeter is easily detached from the gate body together with the lifting part, it is possible to check whether there is an abnormality by separating the flowmeter from the gate body by hand without any additional equipment, and thus maintaining the flowmeter. The maintenance is very simple and quick.

In addition, in the present invention, the bottom surface of the rotary disc forms a flat surface, and a flat seating surface is formed at the bottom of the installation space of the lower body in contact with the rotary disc. Therefore, the entire bottom surface of the rotary disc is rotated stably while being in surface contact with the seating surface of the installation space, and thus the rotary disc is stably rotated without flowing up and down. Therefore, since the vibration of the rotary disc is prevented, the gap between the lower end of the capacitive sensor and the upper surface of the rotary disc is kept constant, so that accurate sensing is possible and thus the flow rate measurement is made accurately.

In the flowmeter of the present invention, a bearing is installed in the lower body to support rotation of the shaft, and the bearing is provided as a Teflon bearing. Therefore, since the inner circumferential surface of the bearing in contact with the outer circumferential surface of the shaft is made of a Teflon material having a very low coefficient of friction, wear of the bearing and the shaft is minimized, thereby extending the life of the product.

The upper body of the present invention is provided with a thrust bearing which is supported at the upper end of the shaft and supports the thrust transmitted to the rotary disc side to the pumping pressure of groundwater to protect parts such as the shaft, the rotary disc, the capacitive sensor, and the like. In the gate body, groundwater is pumped into the gate body and thrust is generated from the lower side to the upper side. Since the thrust bearing is supported by pressing the upper and lower side of the shaft, the shaft, the rotary disc, and the lower body assembly are moved upward by the thrust. Support to prevent flow. Therefore, since the above-mentioned parts of the flowmeter are supported and protected by the thrust bearing, the breakage of the flowmeter is minimized, thereby extending the life of the flowmeter.

1 is a schematic cross-sectional view showing a sealed groundwater geothermal upper protective tube with a flowmeter easy to remove and maintain the present invention.
Figure 2 is a perspective view of the main portion of the present invention
3 is an exploded perspective view of FIG.
4 is a cross-sectional view of FIG.
5 is a partially enlarged cross-sectional view of FIG. 4.
6 is a schematic cross-sectional view showing another embodiment of FIG.

Specific features and advantages of the present invention will become more apparent from the following description with reference to the accompanying drawings.

Figure 1 is a schematic cross-sectional view showing a sealed groundwater geothermal upper protective tube with a flowmeter easy to remove and maintain the present invention, Figure 2 is a perspective view of the main portion of the present invention, Figure 3 is an exploded perspective view of FIG. . 4 is a cross-sectional view of FIG. 2, FIG. 5 is a partially enlarged cross-sectional view of FIG. 4, and FIG. 6 is a schematic cross-sectional view showing another embodiment of FIG. 1.

The sealed groundwater geothermal upper protective tube provided with a flowmeter that is easy to attach and detach and maintain of the present invention includes a casing 2 embedded in an upper portion of the groundwater hole or the geothermal hole 1, and an upper portion of the casing 2. A casing connecting body 4 having a cover 17 coupled thereto, and a gate body 8 installed inside the casing connecting body 4 and guiding the ground water pumped from the groundwater hole or the geothermal hole to be supplied to the water pipe. And a lifting portion 20 coupled to the upper portion of the gate body 8 to attach and detach the gate body 8 to the casing connecting body 4, so that the groundwater pumped by the underwater motor pump 16 is pumped. Guide 15 is supplied to the water pipe 18 through the gate body (8).

An upper flange 3 is formed at the upper end of the casing 2, and is buried in the upper part of the groundwater hole or the geothermal hole 1.

Casing connecting body 4, the lower flange 5 is formed to be coupled to the upper flange (3) of the casing (2) at the lower end, is coupled to the upper portion of the casing (2) and the cover 17 is coupled to the upper end It is. Discharge port 6 is formed in the casing connecting body 4 so as to be connected to the water supply pipe 18, and on the opposite side of the discharge port 6, the binding body 7 so that the gate body 8 to be described later closely adheres to the discharge port 6; ) Is formed.

The gate body 8 is installed in the casing connecting body 4 and guides the groundwater pumped from the groundwater hole or the geothermal hole 1 to be supplied to the water supply pipe 18. The gate body 8 has an inflow passage 10 formed therein so that the groundwater pumped from the pumping pipe 15 enters the lower portion thereof, and the pumping pipe 15 is screwed around the lower portion of the gate body 8. The body male screw portion 14 is formed. A discharge passage 11 is formed at one side of the gate body 8 so that the groundwater supplied to the inflow passage 10 is supplied to the water pipe 18, and the casing connecting body 4 is coupled to the discharge passage 11 opposite to the discharge passage 11. The binding portion 9 protrudes so as to be supported by the sphere 7. An upper portion of the gate body 8 is formed with a coupling portion 12 in which a body female screw portion 13 is formed so that the male screw portion 22 of the lifting shaft 21 to be described later is screwed.

Pumping pipe 15 is installed in the groundwater hole or the geothermal hole 1, and the upper end of the pumping pipe 15 is connected to the inflow passage 10 of the gate body 8, and the lower portion of the pumping pipe 15 The submersible motor pump 16 is installed to pump the groundwater inside the groundwater hole or the geothermal hole 1 to the gate body 8 side.

The lifting portion 20 is attached to and detached from the gate body 8 by being screwed into the upper end of the gate body 8. The lifting portion 20 has a lifting shaft 21 having a male screw portion 22 formed at a lower end thereof so as to be screwed to a flow meter 30 to be described later, and a lifting ring formed at an upper end of the lifting shaft 21. It consists of 23.

The flow meter 30 is provided in the lower end of the lifting shaft 21 and the gate body 8 of the lifting unit 20. The flow meter 30 is coupled to the lower part of the lifting part 20 and is separated together with the lifting part 20 when the lifting part 20 is lifted off from the gate body 8 and withdrawn.

In the sealed groundwater geothermal upper protective tube provided with a flowmeter that is easily removable and maintainable according to the present invention, when the lower end of the lifting part 20 is screwed to the upper end of the gate body 8, the lifting part 20 is lifted up. The gate body 8 and the pump pipe 15 and the submersible motor pump 16 coupled to the gate body 8 are lifted together with the gate body 8, and when the lifting part 20 is rotated horizontally, the lifting part ( It is separated from the gate body 8 so that only 20 is lifted up.

In addition, a flow meter 30 is installed inside the gate body 8 to check a pumping amount of groundwater pumped from the pump pipe 15 to the gate body 8, and the flow meter 30 has a lifting portion ( Coupled to the lower end of the 20, the lifting unit 20 is provided to be separated from the gate body 8 together with the lifting unit 20 when lifted up after being separated from the gate body (8).

The flow meter 30 of the present invention, the upper body 31, the lower body 36, the shaft 40, the bearing 41, the impeller 42, the rotary disc 43, the capacitance sensor 45, It consists of the thrust bearing 46 and the panel 50.

The upper body 31 has a lower end screwed to an upper end of the gate body 8 and an upper end screwed to a lower end of the lifting unit 20.

The upper female thread portion 32 is formed at the upper end of the upper body 31 so that the male screw portion 22 of the lifting shaft 21 is fastened, and the set screw (on the upper portion of the upper body 31 and the lifting shaft 21). 33 is fastened, a lower female thread portion 34 is formed on the lower inner circumferential surface of the upper body 31 so as to fasten the lower body 36 to be described later, and a gate body 8 on the lower outer circumferential surface of the upper body 31. The lower male threaded portion 35 is formed to be screwed to the body female threaded portion 13).

The lower body 36, the upper male screw portion 37 is formed to be fastened to the lower female screw portion 34 of the upper body 31 around the upper end, the installation space so that the rotary disc 43 to be described later is installed on the upper end 38 is formed and the lower end is located inside the pumping pipe 15. On the bottom of the installation space 38 of the lower body 36, a flat seating surface 39 is formed, and the rotary disc 43, which will be described later, has its bottom surface 44 in contact with the seating surface 39 to rotate. Since it is provided so that up and down shaking is prevented.

The shaft 40 is installed to rotate in the lower body 36, the upper end is located in the installation space 38 of the lower body 36, and the lower end is located in the pumping pipe 15.

The bearing 41 is provided inside the lower body 36 to support rotation of the shaft 40. This bearing 41 is provided with a Teflon bearing.

The impeller 42 is rotated by groundwater, which is coupled to the lower end of the shaft 40, rotates with the shaft 40, and is pumped from the pump pipe 15 to the gate body 8.

The rotary disc 43 is located in the installation space 38 of the lower body 36 and is coupled to the upper end of the shaft 40 to rotate together with the shaft 40. As described above, the bottom surface 44 of the rotary disc 43 is in contact with the mounting space 38 of the lower body 36 to support the rotation of the rotary disc 43.

The capacitive sensor 45 is installed in the upper body 31 and the lower end is located in the installation space 38 of the lower body 36 to detect the rotational speed of the rotary disc 43.

The thrust bearing 46 is attached to the upper body 31. The thrust bearing 46 is supported at the upper end of the shaft 40 to support the thrust transmitted to the rotary disc 43 at the pumping pressure of the groundwater, so that the shaft 40, the rotary disc 43, and the capacitance sensor 45 are supported. Protect parts, etc.)

The casing connection main body 4 of the present invention is provided with a panel support 51, and the upper end of the panel support 51 is electrically connected to the capacitive sensor 45 and measured by the capacitive sensor 45. The panel 50 provided with the flow rate indicator 52 which converts and displays a signal is provided.

The sealed groundwater geothermal upper protective tube with a flowmeter of the present invention having such a configuration and easy to remove and maintain has the following characteristics.

First, the lifting portion 20 of the present invention is the lower end screwed to the upper end of the gate body 8, when lifting the lifting portion 20, the pumping pipe coupled to the gate body 8 and the gate body ( 15), the submersible motor pump 16 is lifted together with the gate body 8, and when the lifting part 20 is rotated horizontally, it is separated from the gate body 8 so that only the lifting part 20 is lifted up.

In addition, a flow meter 30 is installed inside the gate body 8 to check a pumping amount of groundwater pumped from the pump pipe 15 to the gate body 8, and the flow meter 30 has a lifting portion ( It is coupled to the lower end of the 20, the lifting part 20 is separated from the gate body (8) and then lifted up and separated from the gate body (8) with the lifting part (20).

Therefore, the sealed groundwater geothermal upper protective tube of the present invention, since the flowmeter 30 is easily detached from the gate body 8 together with the lifting part 20, the flowmeter 30 is manually operated without additional equipment. Separation from the abnormality can be confirmed, accordingly, the maintenance of the flow meter 30 is made very easy and quick.

Second, in the present invention, the bottom surface 44 of the rotary disc 43 forms a flat surface, and a flat seating surface 39 is formed on the bottom of the installation space 38 of the lower body 36 to which the rotary disc 43 is in contact. It is.

Therefore, the whole bottom surface of the rotary disc 43 is rotated stably while being in surface contact with the seating surface 39 of the installation space 38, so that the rotary disc 43 is stably rotated without flowing up and down.

Therefore, since the vibration of the rotary disc 43 is prevented, the gap between the lower end of the capacitive sensor 45 and the upper surface of the rotary disc 43 is kept constant, so that accurate sensing is possible and thus the flow rate measurement is made accurately.

Third, the flow meter 30 of the present invention is provided with a bearing 41 to support the rotation of the shaft 40 in the lower body 36, the bearing 41 is provided with a Teflon bearing.

Therefore, since the inner circumferential surface of the bearing 41 in contact with the outer circumferential surface of the shaft 40 is made of Teflon material having a very low coefficient of friction, wear of the bearing 41 and the shaft 40 is minimized, thereby extending the life of the product. .

Fourth, because the upper body 31 of the present invention is supported on the upper end of the shaft 40 to support the thrust transmitted to the rotary disc 43 side to the pumping pressure of groundwater shaft 40, rotary disc 43, electrostatic capacity The thrust bearing 46 which protects components, such as the sensor 45, is provided.

In the interior of the gate body (8), groundwater is pumped into the gate body (8), and thrust is generated from the lower side to the upper side. Since the thrust bearing (46) is pressed and supported by the upper and lower side of the shaft (40), the shaft (40) ), The rotary disc 43, the lower body 36 support the assembly so as not to flow upward by the thrust.

Therefore, since the above-mentioned parts of the flow meter 30 are supported and protected by the thrust bearing 46, the breakage of the flow meter 30 is minimized, thereby extending the life of the flow meter 30.

Figure 6 is a schematic cross-sectional view showing another embodiment of the present invention, the sealed groundwater geothermal upper protective tube equipped with such a removable and easy-to-maintain flowmeter is not provided with a panel support 51, panel 50, instead In the cover 17, a flowmeter 52 is provided.

The flowmeter 52 is electrically connected to the capacitive sensor 45 to convert and display the electrical signal measured by the capacitive sensor 45.

In the present invention, since the flow indicator 52 is installed directly on the cover 17, there is no need to install a separate panel support 51 and panel 50, thereby reducing the manufacturing cost.

1: geothermal hole 2: casing
3: upper flange 4: casing connecting body
5: lower flange 6: discharge port
7: binding sphere 8: gate body
9: binding unit 10: inflow passage
11 discharge path 12 coupling portion
13 body female threaded portion 14 body male threaded portion
15: pumping pipe 16: submersible motor pump
17 cover 18 water pipe
20: lifting part 21: lifting axis
22: male thread 23: lifting ring
30: flow meter 31: upper body
32: upper female thread part 33: set screw
34: lower female thread part 35: lower male thread part
36: lower body 37: upper male thread portion
38: installation space 39: seating surface
40: shaft 41: bearing
42: impeller 43: rotary disc
44: bottom 45: capacitive sensor
46: thrust bearing 50: panel
51 panel support 52 flow meter

Claims (7)

A casing 2 embedded in the upper portion of the groundwater hole or the geothermal hole 1;
A casing connecting body 4 coupled to an upper portion of the casing 2 and having a cover 17 coupled to an upper end thereof;
A gate body 8 installed in the casing connecting body 4 and guiding the groundwater pumped from the groundwater hole or the geothermal hole 1 to be supplied to the water pipe 18;
A pumping pipe 15 installed in the groundwater hole or the geothermal hole 1 and having an upper end connected to the gate body 8;
An underwater motor pump (16) installed in the pumping pipe (15) to pump groundwater or groundwater (1) into the gate body (8);
A lifting part 20 having a lower end screwed to an upper end of the gate body 8 to be detached from the gate body 8;
The upper portion is coupled to the lower portion of the lifting portion 20 and when the lifting portion 20 is separated from the gate body 8 and lifted up, the flow meter 30 is separated with the lifting portion 20 and drawn out; Sealed groundwater geothermal upper protective tube with a flowmeter that is easy to remove and maintain.
A casing buried in the upper part of the groundwater hole or the geothermal hole, a casing connecting body coupled to the upper part of the casing and having a cover coupled to the upper end, and groundwater installed in the casing connecting body and pumped from the groundwater hole or the geothermal hole It consists of a gate body for guiding the water supply pipe and a lifting part coupled to the upper part of the gate body to detach the gate body inside the casing connection body, and the groundwater pumped by the submersible motor pump is supplied to the water pipe side through the water pipe and the gate body. In the sealed groundwater geothermal upper protective pipe to guide,
Lifting portion 20, the lower end is screwed to the upper end of the gate body 8, when lifting the lifting portion 20, the water pipe 15 and the water pipe 15, which is coupled to the gate body 8, underwater The motor pump 16 is lifted together with the gate body 8 and is separated from the gate body 8 when only the lifting part 20 is lifted up when the lifting part 20 is rotated horizontally;
The flow meter 30 is installed inside the gate body 8 to check the pumping amount of groundwater pumped from the pump pipe 15 to the gate body 8, and the flow meter 30 has an upper end lifting portion 20. Is coupled to the lower end of the lifting portion 20 is separated from the gate body (8) and then lifted up and detached and easy to maintain, characterized in that it is provided to be separated from the gate body (8) together with the lifting portion (20). Closed groundwater geothermal upper guard with flowmeter.
The flow meter 30 according to claim 1 or 2,
An upper body 31 having a lower end screwed to an upper end of the gate body 8 and an upper end screwed to a lower end of the lifting unit 20;
A lower body 36 having an upper end screwed to a lower portion of the upper body 31 and an installation space 38 formed at an upper end thereof, and having a lower end positioned inside the pumping pipe 15;
The shaft 40 is installed to rotate in the lower body 36 and the upper end is located in the installation space 38 of the lower body 36 and the lower end is located in the pumping pipe 15,
A bearing 41 installed inside the lower body 36 to support rotation of the shaft 40;
An impeller 42 coupled to the lower end of the shaft 40 and rotated by groundwater that is rotated with the shaft 40 and pumped from the pump pipe 15 to the gate body 8,
A rotary disc 43 located in the installation space 38 of the lower body 36 and coupled to the upper end of the shaft 40 to rotate together with the shaft 40;
Detachable and characterized in that it is installed on the upper body 31 and the lower end is located in the installation space 38 of the lower body 36 to detect the rotational speed of the rotary disc 43, and Sealed groundwater geothermal upper guard with easy-to-maintain flowmeter.
The method according to claim 3,
In the lower body 36, a flat seating surface 39 is formed at the bottom of the installation space 38,
The rotary disc 43 is a sealed groundwater geothermal upper protective tube with a removable flow and easy maintenance, characterized in that the bottom surface is provided so as to rotate in contact with the seating surface (39).
The method according to claim 3,
The bearing 41 is provided with a Teflon bearing;
The upper body 31 is supported at the upper end of the shaft 40 to support the thrust transmitted to the rotary disc 43 side by the pumping pressure of the groundwater, so that the shaft 40, the rotary disc 43, and the capacitive sensor 45 are supported. Sealed ground water geothermal upper protective tube with a flow meter easy to attach and detach, characterized in that the thrust bearing 46 is installed to protect the.
The cover 17 according to claim 1 or 2,
Easily detachable and easy to maintain, characterized in that the flow rate indicator 52 is connected to the capacitive sensor 45 to convert and display the electrical signal measured by the capacitive sensor 45 is installed Enclosed groundwater geothermal upper guard.
The method according to claim 1 or 2,
The casing connecting body (4) is provided with a panel support (51),
At the top of the panel support 51, a panel 50 is provided with a flow rate meter 52 that is electrically connected to the capacitive sensor 45 and converts and displays the electrical signal measured by the capacitive sensor 45. Sealed groundwater geothermal upper protective tube equipped with a flowmeter that is easy to attach and detach.

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