JPH09159443A - Level setting device for horizontal long member and using method for the device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of times for raising and lowering to or from a high place, to safely and immediately execute a level setting work of a horizontal long member with light exhaustion and to omit the work of level setting and confirmation at the high place. SOLUTION: The title device is a U-shaped level setting device which is so constituted that right and left ends of an identical long water hose 6 are respectively connected to lower ends of a pair of right and left transparent standing cylinders 10 which are the same size and water is filled in the long hose 6 such that right and left free surfaces come roughly the center of each of the standing cylinders 10. It comprises electromagnetic valves 9 which are respectively provided in top end opening sections of the standing cylinders 10 and open and close respective top end openings by remote controlling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a level setting device for horizontal elongated members suitable for field installation work of horizontal elongated members and a method for using the level setting device.

[0002]

2. Description of the Related Art In a power plant, a chemical plant, etc., it is necessary to correctly set a horizontal long member such as a pipe head installed at a high place horizontally at a set position. Therefore, in the past, workers set long hoses filled with water in the horizontal position marks at both ends of the header, and visually confirmed the same level of water level at both ends while setting the header level. It is carried out.

[0003]

However, the leveling work of this type of pipe drawing is performed by the worker in the above-mentioned manner in a high place environment of about 50 m above the ground, for example. Since it does, there are the following problems. (1) Since the worker has to move up and down to the installation position at a high place of the pipe header many times during the level setting work, it takes a long time to move up and down. (2) Elevating to a high place and level setting work at a high place not only requires physical strength and nerves, but also causes great fatigue and is dangerous.

The present invention has been proposed in view of the above circumstances, and the number of times of raising and lowering to a high place is reduced, and the level setting work of a horizontal elongated object or the like is performed quickly and safely with less fatigue, thereby making It is an object of the present invention to provide a labor-saving and labor-saving level setting device for a horizontal elongated member and a method of using the same, which can omit level setting and confirmation work by an operator.

[0005]

In order to achieve such an object, the apparatus invention according to claim 1 has the same size of left and right 1
Left and right ends of the same water hose are connected to the lower ends of a pair of transparent vertical cylinders, and the hose is filled with water so that the left and right free surfaces are located at approximately the center level of each vertical cylinder. The mold level setting device is provided with an electromagnetic valve attached to the upper end opening of each of the vertical cylinders to open and close the upper end opening by remote control.

According to a second aspect of the present invention, when the level setting device of the first aspect sets the level of the horizontal member to be inspected, the left vertical cylinder and the right vertical cylinder are inspected. The horizontal long members are respectively arranged at the left and right ends of the center line level, and when the center line level of the horizontal member to be tested is moved,
Both electromagnetic valves are closed, and both electromagnetic valves are opened when the level is detected, so that the end and / or both ends of the horizontal member to be tested are moved up and down.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION One embodiment in which the present invention is applied to a leveling work for a pipe header of a plant will be described. FIG. 1 is a front view thereof, FIG. 2 is a cross sectional view taken along the line II-II of FIG. 3 is a front view taken along the line III-III in FIG. 2, and FIG. 4 is a front view showing a water surface detection procedure by the pair of left and right automatic remote level detecting devices in FIG.

First, referring to FIGS. 1 and 2, the structure of the device of the present invention will be described. Horizontal end portions of a horizontal cylindrical tubular head 1 and 4 are suspended by a pair of left and right lifting wires 2 and 3, respectively. Level detectors attached to the specified positions near the left and right ends of the attachment jigs 20 via the attachment jigs 20 of the same size. The pair of left and right bolt-type positioning pins are set so as to come into contact with the center level line which is the horizontal reference position of No. 1.

Next, referring to FIG. 3, the structure of the automatic remote level detecting device (hereinafter referred to as the level detecting device) according to the present invention will be described. The automatic remote level detecting device has a pair of left and right level detecting devices having the same structure and the same size. As shown in FIG. 3, the front view of each detection device is a rectangle long in the vertical direction, and the side view has a U-shape in which the upper and lower ends open forward. A vertical acrylic pipe 10 is attached to the center of such a pair of left and right level detecting devices 4 and 5, and the left and right ends of the long water hose 6 are respectively the left part level detecting device 4 and the right part. It is connected to the lower end of each acrylic tube 10 of the level detection device 5, respectively. The water 15 is between the sensor 11 and the sensor 12 attached to the outer surface of each acrylic tube 10, and the sensor 1
It is injected to a position intermediate between 3 and the sensor 14. 9
Is a solenoid valve that is arranged at the upper end of each acrylic pipe 10 and is opened and closed by remote control of the open end of the acrylic pipe.

In such a device, each acrylic tube 1
By opening the solenoid valves 9 respectively disposed above 0, from the closed state to the open state, the liquid level of each level detection device 4 and 5 becomes atmospheric pressure, and the position of the liquid level (level) depends on the level of the header 1. Also changes, and the detection status of each sensor 11, 12, 13, 14 also changes. Now, while the sensors 11 and 12 detect the liquid level, while the sensors 13 and 14 do not detect the liquid level, the level of the sensors 11 and 12 side is low and the sensor 1
Since the level on the 3rd and 14th side is high, the sensor 11
12 (level detection device 4) is slightly lifted to perform the level setting work for the pipe header 1, and it is confirmed that both the sensor 11 and the sensor 13 are detecting the liquid level.

As described above, according to the device of the present invention, the following effects can be obtained. (1) By adopting a water level system and adopting a structure in which the liquid level is detected by a liquid level detection sensor, it is possible to level the leveling of a long object by remote control on the ground. (2) Since the left and right level detection devices are connected by the water hose, this can be dealt with by changing the length of the water hose depending on the length of the pipe head.

[0012]

EFFECTS OF THE INVENTION By using the level setting device of the present invention for leveling a long object such as a heading, a worker can perform the level setting / confirmation work on a work scaffold of 50 m above the ground, which is conventionally performed at a low position. , It can be done remotely on the ground, for example.

In short, according to the first aspect of the invention, the left and right ends of the same water hose are connected to the lower ends of a pair of left and right transparent vertical cylinders of the same size. In a U-shaped level setting device in which the same hose is filled with water so that the left and right free surfaces come to each other, a solenoid valve attached to the upper end opening of each vertical cylinder to open and close the upper end opening by remote control is provided. As a result, the number of times of raising and lowering to high places can be reduced, leveling work of horizontal long objects can be done quickly and safely without fatigue, and if necessary, level setting and confirmation work at high places can be omitted and ground level can be omitted. INDUSTRIAL APPLICABILITY Since the present invention provides a level setting device for a horizontal long member that is safe, labor-saving, and labor-saving and that can be set by remote control at a low altitude, the present invention is extremely useful industrially. Ah .

According to the invention of claim 2, claim 1
When setting the level of the horizontal member to be inspected by the level setting device, the left vertical cylinder and the right vertical cylinder are respectively placed at the left and right ends of the center horizontal level of the horizontal horizontal member to be inspected. However, when the centerline level of the same horizontal long member to be inspected is moved, both solenoid valves are closed, and when the level is detected, both solenoid valves are opened together, and the end of the same horizontal long member to be inspected and Or, by raising and lowering both ends, the number of times of raising and lowering to a high place is reduced, and level setting work for horizontal long objects etc. is performed quickly and safely without fatigue, if necessary,
A level-saving device for labor-saving and labor-saving horizontal elongate members and a method of using the same that can perform level setting by remote control at a low place such as the ground, omitting level setting and confirmation work at high places. The present invention is extremely useful industrially.

[Brief description of the drawings]

FIG. 1 is an overall front view showing an embodiment in which a level detection device of the present invention is applied to level setting of a pipe-laying object which is a subject.

FIG. 2 is a cross-sectional side view taken along the line II-II of FIG.

FIG. 3 is a front view taken along the line III-III of FIG.

FIG. 4 is a front view showing a liquid level detection procedure by a pair of left and right level automatic remote detection devices in FIG.

[Explanation of symbols]

 1 Pipe pulling 2,3 Lifting wire 4,5 Level detector 6 Long water hose 7 Belt 8 Positioning pin 9 Solenoid valve 10 Acrylic pipe 11, 12, 13, 14 Sensor 15 Water 20 Mounting jig

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Katsuji Nagasuge 1-1-1, Wadasaki-cho, Hyogo-ku, Kobe-shi, Hyogo Prefecture Mitsubishi Heavy Industries, Ltd. Kobe Shipyard (72) Inventor Hisamitsu Uchiya, Kobe-shi, Hyogo Prefecture 1-1-1 Wadazaki-cho, Tokyo Mitsubishi Heavy Industries, Ltd. Kobe Shipyard

Claims (2)

[Claims] 1. The left and right ends of the same water hose are connected to the lower ends of a pair of left and right transparent vertical cylinders of the same size,
In a U-shaped level setting device in which the same hose is filled with water so that the left and right free surfaces are located at approximately the center level of each of the vertical cylinders, the upper end opening of each of the vertical cylinders is attached to the upper end opening of the vertical cylinder. A level setting device for a horizontal elongated member, characterized by comprising a solenoid valve for opening and closing by remote control. 2. The level setting device according to claim 1, when setting the level of a horizontal member to be inspected, the left vertical cylinder and the right vertical cylinder are set at the center line level of the horizontal member to be inspected. Are placed at the left and right ends of the same, and both solenoid valves are closed when the centerline level of the horizontal member to be tested is moved, and both solenoid valves are opened when the level is detected. A level setting device for a horizontal elongated member, which comprises raising and lowering an end and / or both ends of the horizontal elongated member, and a method of using the level setting device.