JP4180169B2 - Charged particle sensor in flow current meter device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a charged particle sensor in a flow ammeter device that is used for measuring the degree of contamination by detecting the amount of charged particles in wastewater through an electrode and sending the data to a flow ammeter, for example. Relates to a charged particle sensor in a flow ammeter device that facilitates removal and reassembly of a piston rod to improve the efficiency of disassembly and assembly.
[0002]
[Prior art]
A charged particle sensor in a flow current meter device of this type known in the prior art has an electrode around a piston that moves up and down by a motor driven eccentric shaft device provided with the eccentric shaft positioned directly above the piston rod. Since the configuration is such that the detection data of the charged particle amount is sent to the flow current meter device by these electrodes, it is relatively difficult to remove or reassemble the piston rod, and it is difficult to disassemble and assemble. There was a defect.
[0003]
[Problems to be solved by the invention]
An object of the present invention is to provide a charged particle sensor in a novel flow current meter device that has been devised to eliminate the above-described defects.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, a charged particle sensor in a flow ammeter apparatus according to the present invention is provided around a piston that moves up and down by a motor-driven eccentric shaft device provided with an eccentric shaft positioned directly above a piston rod. The charged particle sensor in a flow ammeter device of the type that sends the detection result of the charged particle amount to the flow ammeter device by these electrodes and measures the degree of contamination of the sewage and the sewage water. Eccentric shaft device is mounted on the mounting base, the mounting base is fixed to the mounting portion with a plurality of mounting screws, and all but one of these mounting screws is removed and the mounting is not removed The mounting base can be turned down with the screw at the center. Those comprising as a position shifted from right above position.
[0005]
【Example】
The embodiment according to the present invention shown in the figure includes a cylinder 1, a rod through hole 2 drilled vertically on the cylinder 1, a piston rod 3 inserted through the rod through hole 2 from above, and a piston in the cylinder 1. A state in which the piston 4 built in the state of moving up and down by the rod 3, a pair of upper and lower platinum wire electrodes 5 and 6 provided on the piston moving peripheral surface of the cylinder 1, and the cylinder 1 communicated with the cylinder 1 And a drain hole 9 with a plug 8 provided at the bottom of the cylinder 1, which is formed so as to cross the rod passage hole 2, and the sensor 4 comprising the piston 4 by the eccentric shaft device 11. These sensors 10 and eccentric shaft device 11 are attached to a mounting board 12.
[0006]
The cylinder 1 is separated into upper and lower parts at a position crossing the vertical movement space 14 of the piston 4 and screw-tightened flange joints 15 and 16 are provided on the outer circumferences of the upper and lower separation surfaces so that the cylinder 1 can be combined and re-separated. In addition, upper and lower recesses 17 and 18 are provided on both upper and lower separation surfaces to form a cylindrical space 19, and separately from this, the inner circumferential diameter is slightly lower than the height of the cylindrical space 19. Is formed as a cylinder main portion forming body 20 having the same outer diameter as that of the piston 4 and an outer peripheral diameter equal to the peripheral diameter of the cylindrical space 19, and four surfaces of the cylinder main portion forming body 20 are cut off. When this is viewed from above, it has a rounded square shape, and synthetic resin washers 21 and 22 are applied to the upper and lower surfaces of the cylinder main body forming body 20 to separate them into the cylindrical space 19. Loading by performing a coalescing operation Further, the inner peripheral edges of the upper and lower surfaces of the cylinder main body forming body 20 are cut into L shapes to provide the fitting grooves 23 and 24 for the platinum wire electrodes 5 and 6 and the cylinder main body forming body 20. A vertical concave groove 25 is provided in one flat portion on the outer periphery of the outer peripheral surface, and a wire outlet hole 26 communicating with the electrode fitting grooves 23 and 24 is formed at the upper and lower ends of the bottom surface of the vertical concave groove 25. Wiring holes 28 are respectively opened in the peripheral wall of the space 19.
[0007]
In addition, the eccentric shaft device 11 has a large square hole 31 in the mounting plate 12, and a mounting base 32 such as a motor is disposed outside the square hole 31, and the mounting base 32 is used as a cut edge of the square hole 31. The mounting base 32 is fixed to the mounting base 12 by tightening the upper edge of the overlapping edge and the middle portion of the lower edge with the upper mounting screw 29 and the lower mounting screw 30. The motor 34 with the speed reduction gear device 34 is fixed in a state where the tip of the shaft 35 is located directly above the piston rod 3, and the eccentric ring 36 cannot be rotated on the shaft 35 of the motor 34 by the mounting screw 37 and the key 38. The eccentric ring 36 is connected to a movement direction diverting member 42 comprising an outer ring portion 40 with a bearing 39 and an arm portion 41. The front end of the piston portion 3 and the upper end of the piston rod 3 are connected by the bifurcated portion 43, the connecting shaft 44, the rod end 45, and the snap pin 46, so that the piston rod 3 and the piston 4 are vertically moved by the rotation of the eccentric ring 36. It is intended to reciprocate.
[0008]
In the above embodiment, the upper and lower electrodes are installed in a predetermined place so as to flow sewage obtained by diverting from a sewage pipe (not shown) from the inlet side to the outlet side of the sewage through hole 7. 5, 6 and a flow current meter device (streaming current detector) are connected, and in this state, the motor 32 is rotated so that the piston 4 is reciprocated up and down. It is made to use for usage, such as sending to a flow ammeter apparatus through and measuring.
[0009]
And while being used for the above usage, since the piston 4 and the electrodes 5 and 6 and the circumference | surroundings become dirty with dirty water, this is cleaned regularly or irregularly.
[0010]
When this cleaning is performed, the screws of the flanges 15 and 16 are removed to separate the lower half of the cylinder 1, and in this separated state, the cylinder main body forming body 20 and washers 21 and 22 are extracted from the lower half and disassembled. Further, the electrodes 5 and 6 are removed from the cylinder main body forming body 20, so that the cleaning operation around these and the piston 4 is performed or the electrodes are replaced.
[0011]
Further, when the piston rod 3 is removed during the cleaning and it is desired to clean the piston rod 3, first, both the upper mounting screws 29 are removed and the lower mounting screws 30 are loosened, and then the mounting base. 32 is rotated to the position indicated by the phantom line in the drawing, and the snap pin 46, the connecting shaft 47 and the deflecting member 42 are removed, so that the shaft 35 and the eccentric ring 36 are displaced from the position directly above the piston rod 3, that is, the piston rod. In this state, the piston rod 3 may be removed and the operation is performed.
[0012]
【The invention's effect】
The charged particle sensor in the flow current meter device according to the present invention has an electrode around a piston that moves up and down by a motor-driven eccentric shaft device provided with the eccentric shaft positioned directly above the piston rod as described above. The charged particle sensor in the flow ammeter device of the type that sends the detection result of the charged particle amount to the flow ammeter device by these electrodes and measures the degree of contamination of the sewage and the sewage water, the motor driven eccentric shaft The device is mounted on the mounting base, the mounting base is fixed to the mounting portion with a plurality of mounting screws, and the mounting screws that have not been removed are removed in a state where all but one of these mounting screws is removed. The mounting base can be turned down as the center, and the eccentric shaft is positioned directly above the piston rod when it is turned down. Since the piston, electrode, and the surroundings have become dirty due to use, the inside is disassembled and cleaned, or the electrode is replaced. In this case, the disassembling operation and the assembling operation can be remarkably facilitated, and the working time required for these operations can be shortened.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of the present invention.
FIG. 2 is a sectional view taken along line 1A-A in FIG.
FIG. 3 is a cross-sectional view taken along line 1B-B.
FIG. 4 is a cross-sectional view taken along line 1C-C.
FIG. 5 is a plan view taken along the line 1D-D of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cylinder 2 Rod through-hole 3 Piston rod 4 Piston 5, 6 Electrode 7 Sewage through-hole 8 Plug 9 Drain hole 10 Sensor 11 Eccentric shaft apparatus 12 Mounting board 14 Moving space 15, 16 Flange joint 17, 18 Recess 19 Cylindrical space 20 Cylinder main body forming bodies 21, 22 Synthetic resin washers 23, 24 Fitting groove 25 Recess groove 26 Wire outlet hole 28 Wiring hole 29 Upper mounting screw 30 Lower mounting screw 31 Square hole 32 Mounting base 33 G Device 34 Motor 35 Shaft 36 Eccentric ring 37 Mounting screw 38 Key 39 Bearing 40 Outer ring part 41 Arm part 42 Turning member 43 Bifurcated part 44 Connecting shaft 45 Rod end 46 Snap pin 48 Tightening screw 49 Tightening ring

Claims (1)

An electrode is arranged around the piston that moves up and down by a motor-driven eccentric shaft device provided with the eccentric shaft positioned directly above the piston rod, and the detection result of the charged particle amount is detected by these electrodes. For the charged particle sensor in the flow ammeter device that measures the degree of contamination of sewage, water and sewage by sending to the mounting base, the motor-driven eccentric shaft device is equipped on the mounting base, and this mounting base is mounted with multiple mounting screws It is possible to turn the mounting base around the mounting screw that was not removed in the state where all but one of these mounting screws are removed, and the eccentric shaft in this rotated state. In the flow ammeter device, the position is shifted from the position directly above the piston rod. Charged particle sensor that.

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