CN201340402Y

CN201340402Y - Floating lift-type PH measuring device

Info

Publication number: CN201340402Y
Application number: CNU2008201756317U
Authority: CN
Inventors: 张荣平
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-21
Filing date: 2008-10-21
Publication date: 2009-11-04
Anticipated expiration: 2018-10-21

Abstract

The utility model relates to a floating lift-type PH measuring device, which comprises a power control box, a guide rail, a floating pontoon, a tray, an electrode protection cup and a cable stand. The foldable cable stand, the floating pontoon and the tray are sequentially installed on the vertically-installed rectangular tube guide rail from top to bottom. The power control box is installed at the top of the guide rail. The tray below the floating pontoon is pulled by a steel wire rope. The steel wire rope is driven by a motor in the power control box. The tray can be lifted up or down from the floating pontoon through operating the control switch of the motor. A PH measuring electrode is installed on one side of the floating pontoon. The floating pontoon floats on the water surface to carry out PH online measurement. A water cup which can cover the probe of the PH measuring electrode is arranged below the PH measuring electrode. The water cup is installed at one end of a lever. A float is installed at the other end of the lever. The lever fulcrum is fixed at the bottom of the floating pontoon.

Description

Lift PH measurement mechanism floats

Technical field

The utility model relates to a kind of PH measurement mechanism, is applicable to the PH on-line measurement of wastewater disposal basin in the Industrial Wastewater Treatment, neutralization pond, or carries out the PH on-line measurement under the big occasion of other water-level fluctuation amplitude.The utility model is made up of power control case, guide rail, pontoon, pallet, electrode protection cup, collapsible cable trough.

Background technology

In the PH measuring process of wastewater disposal basin, neutralization pond, the PH potential electrode will go deep into carrying out in the pond fixed installation in the present factory.Because the needs on the waste water treatment process, wastewater disposal basin, neutralization pond often will carry out draining and water inlet, but not having waste water again after the water emptying of pond enters, and the PH potential electrode is hung in the sky.Because the PH electrode is exposed in the air for a long time, can cause electrode failure, causes electrode damage; Because of electrode gos deep into installing in the pond, make maintenance, the verification, very inconvenient of staff again to electrode.

Summary of the invention

The purpose of this utility model is to avoid existing metering system deficiency, and a kind of unsteady lift PH measurement mechanism is provided.The utility model may command PH potential electrode rises or descends, and is convenient to the staff PH potential electrode is safeguarded and verification, but and under the withered situation of pool water within the PH potential electrode is protected.

The purpose of this utility model can reach by following measure: (1) has a square pontoon that floats on the surface, pontoon one side is equipped with the PH potential electrode, a movable water tumbler that can cover the PH electrode probe is housed below the PH electrode, water tumbler is fixed on an end of a lever, the lever other end is equipped with a ball float, the fulcrum of lever is fixed on the pontoon bottom, and water tumbler and ball float constitute an electrode protecting device; (2) on a vertically arranged rectangular guideway, the collapsible cable trough of from top to bottom packing into successively, pontoon, pallet is equipped with the power control case on the guide rail top, and pallet is drawn by steel cable, the upper end of wire rope is fixed on the interior take-up reel of power control case, and take-up reel is driven by direct current motor; (3) at control box between the pontoon, have a pair to be connected along the collapsible cable trough that guide rail slides; (4) electromotor control circuit is arranged, by operation change-over switch K1, the lifting of may command pontoon and decline.

Description of drawings

The drawing of accompanying drawing is described as follows:

Fig. 1 lift PH measurement mechanism that floats.

Fig. 2 control circuit figure.

1. power control casees among Fig. 1,2. direct current motor, 3. take-up reel, 4. limit switch, 5. collapsible cable trough, 6.PH potential electrode, 7. pontoon, 8. ball float, 9. pallet, 10. guide rail, locating piece on 11., 12. times locating pieces.

E power supply among Fig. 2, FU insurance, K1 operating switch, K2 upper limit position switch, K3 lower position switch, M motor.

Embodiment

Now further set forth the utility model in conjunction with the embodiments: float lift PH measurement mechanism as shown in Figure 1, a square type pipe guide rail (10) is installed below power control case (1), guide rail (10) passes collapsible cable trough (5), pontoon (7) and pallet (9) from top to bottom successively, and these three parts can move up and down along guide rail (10).Pallet (9) is drawn by steel cable, steel wire penetrating pontoon (7) is fixed on the interior take-up reel of power control case (1) (3), take-up reel (3) is rotated by gear drive by reducing motor (2), gauge tap K1 in the application drawing 2, can promote or descend pontoon, so that electrode is carried out verification.

Float lift PH measurement mechanism when measuring, and operating switch K1 is in " 2 " retaining among Fig. 2, and motor did not have electricity and do not work this moment, and pontoon is kept afloat and measured.

When operating switch K1 being carried out the switching of " 1 " shelves, feed circuit are connected, direct current motor (2) forward rotation, and, drive the take-up reel rotation by the reduction gearing deceleration, make the wire rope take-up on the take-up reel.The guide hole of steel wire penetrating pontoon is drawing pallet and is rising, and the pontoon above pallet holds up when passing the water surface rises along guide rail together.When pontoon and pallet rise to upper limit height, the upper limit locating piece (11) that is fixed on the wire rope touches upper limit position switch K2, and K2 is disconnected, and the motor outage stops operating, and pallet and pontoon are parked in the height of upper limit setting.

When operating switch K1 being carried out the switching of " 3 " retaining, circuit makes motor oppositely charged, the motor counter-rotating, slow down by reduction gearing, the counter-rotating of driving take-up reel, make take-up reel carry out unwrapping wire, the steel wire penetrating pontoon is drawing pallet and pontoon moves downward (when the last locating piece of wire rope leaves upper limit position switch along guide rail, upper limit position switch resets), at this moment: if 1. the pontoon below is anhydrous, pontoon follows pallet to descend always, when dropping to the lower limit height, the following locating piece (12) that is fixed on the wire rope touches lower position switch K3, and K3 disconnects and makes the motor outage, and pontoon and pallet are parked in the height of lower limit set.If 2. there is water pontoon below, when pontoon and pallet dropped to the water surface, pontoon was kept afloat because of the buoyancy of self, separate with the pallet that continues decline, and pallet continues to descend, until locating piece (12) shake-up down of lower position switch K3 quilt, motor just stops operating, and pallet is parked in the lower limit set height.

Among Fig. 1, the output signal of PH potential electrode (6), transfer to Displaying Meter with cable, cable is fixed on a pair can be on flexible collapsible cable trough (5) folding arm of guide rail, the cable trough upper end is fixed on power control case bottom, and the lower end is fixed on the pontoon, during the pontoon lifting, cable trough is followed and is made corresponding telescopic folding, avoids the winding of cable to guide rail.

Among Fig. 1, there is a movable water tumbler below in that pontoon (7) is installed the PH electrode, and water tumbler connects a ball float (8) by lever, and balance pivot is fixed on the pontoon bottom, constitutes electrode protecting device.When pontoon was kept afloat, ball float was also kept afloat because of buoyancy, and the ball float come-up moves down the lever other end, and the lever band water tumbler and left the PH electrode probe.When decline of water table low during pontoon, ball float (8) just descends with decline of water table, and the other end water tumbler of lever is moved up; make cup cover the PH electrode gradually; because of there being water in the water tumbler, avoid causing the inefficacy of PH electrode for a long time because of water level dries up, reach the purpose of guard electrode.

Claims

1, a kind of unsteady lift PH measurement mechanism is characterized in that:

(1) a square pontoon (7) that floats on the surface is arranged, pontoon one side is equipped with PH potential electrode (6), a movable water tumbler that can cover the PH electrode probe is housed below the PH electrode, water tumbler is fixed on an end of a lever, the lever other end is equipped with a ball float (8), the fulcrum of lever is fixed on the pontoon bottom, and water tumbler and ball float constitute an electrode protecting device;

(2) on a vertically arranged rectangular guideway, the collapsible cable trough (5) of from top to bottom packing into successively, pontoon (7), pallet (9), on guide rail (10) top power control case (1) is housed, pallet (9) is by the steel cable traction, and the upper end of wire rope is fixed on the interior take-up reel of power control case (1) (3), and take-up reel (3) is driven by direct current motor (2);

(3) at control box (1) between the pontoon (7), have a pair to be connected along the collapsible cable trough (5) that guide rail (10) slides;

(4) electromotor control circuit is arranged, by operation change-over switch K1, the lifting and the decline of may command pontoon (7).

2, by the described unsteady lift PH measurement mechanism of claim 1, it is characterized in that one can be along the pontoon (7) of lifting rail, there is a pallet (9) its below, provide power by top power control case (1), drawing wire rope, pallet (9) is held up or fall pontoon (7), between pontoon (7) and power control case (1), have a secondary collapsible cable trough (5) to be connected.