CN210802504U - A pH value measuring device for desulfurizing tower - Google Patents

Abstract

The utility model relates to the technical field of accessories of a desulfurizing tower, in particular to a pH value measuring device for a desulfurizing tower, which comprises a pH sensor and a sensor connecting device which are coaxially arranged; the sensor connecting device comprises a pipeline short section and a manual ball valve; the two axial ends of the manual ball valve are connected with the pipeline short section flange; the PH sensor comprises a detection end extending into the desulfurizing tower and a fixed end opposite to the detection end; the fixed end is fixed with a flange blind plate, and the flange blind plate is connected with one end of the sensor connecting device through a flange; the length of the PH sensor is larger than that of the sensor connecting device. This device can direct mount directly measure thick liquid pH value in the desulfurizing tower on the desulfurizing tower, need not to start other equipment in the measurement process to the PH sensor can be dismantled and maintain during the operation.

Description

A pH value measuring device for desulfurizing tower

Technical Field

The utility model relates to a desulfurizing tower accessory technical field especially relates to a pH value measuring device for desulfurizing tower.

Background

At present, the pH value of a desulfurizing tower is mainly measured in two ways, one way is that a pH value measuring device is directly arranged on the desulfurizing tower, and the method can continuously and directly measure the pH value of slurry in the desulfurizing tower; however, during the operation, the PH sensor can not be dismantled and maintained, and once the slurry is dismantled, the slurry can directly flow out of the tower along the flange opening, and the PH sensor per se needs to be dismantled regularly to guarantee the precision of the instrument through calibration of the calibration liquid.

The other mode is that a PH value measuring device is arranged on a return pipe of a discharge pump of the desulfurizing tower, slurry in the desulfurizing tower circulates in the return pipe under the action of the discharge pump, and a PH sensor is arranged on the return pipe to measure the PH value; the method has the advantages that when the PH sensor needs to be maintained, the PH sensor can be taken down for maintenance by stopping the pump and closing the valve; however, the disadvantage is that the pump must be started to circulate the slurry in the return pipe when measuring the pH value, and the flow rate needs to be controlled to avoid damaging the pH sensor probe when the flow rate is too fast.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pH value measuring device for desulfurizing tower to the above-mentioned technical problem who exists among the prior art. This device can direct mount directly measure thick liquid pH value in the desulfurizing tower on the desulfurizing tower, need not to start other equipment in the measurement process to the PH sensor can be dismantled and maintain during the operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a pH value measuring device for a desulfurizing tower comprises a pH sensor and a sensor connecting device which are coaxially arranged; the sensor connecting device comprises a pipeline short section and a manual ball valve;

the two axial ends of the manual ball valve are connected with the pipeline short section flange; the PH sensor comprises a detection end extending into the desulfurizing tower and a fixed end opposite to the detection end; the fixed end is fixed with a flange blind plate, and the flange blind plate is connected with one end of the sensor connecting device through a flange;

the length of the PH sensor is larger than that of the sensor connecting device.

Furthermore, a through hole is formed in the center of the flange blind plate; the fixed end of the PH sensor is fixed with the flange blind plate through the through hole.

The utility model has the advantages and positive effects that:

the utility model has the advantages of simple structure reasonable practical, the difficult problem of dismantling when effectively having solved PH sensor on-line measurement desulfurizing tower PH value can direct mount thick liquid PH value in the direct measurement desulfurizing tower on the desulfurizing tower, need not to start other equipment in the measurement process to dismantle at the PH sensor during the maintenance, the desulfurizing tower still can normal operating, need not the velocity of flow of control.

Description of the drawings:

FIG. 1 is a schematic view of the installation of a measuring device in a preferred embodiment of the present invention;

FIG. 2 is a front view of a measuring device in a preferred embodiment of the invention;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a schematic view of a flange blind in a preferred embodiment of the present invention;

FIG. 5 is a schematic view of a pipe nipple according to a preferred embodiment of the present invention;

fig. 6 is a schematic view of a manual ball valve according to a preferred embodiment of the present invention.

Wherein: 1. a pH sensor; 11. a detection end; 12. a fixed end; 2. a pipe nipple; 3. a manual ball valve; 4. a flange blind plate; 5. a connecting flange; 6. a desulfurizing tower.

Detailed Description

For further understanding of the contents, features and functions of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings as follows:

as shown in fig. 1 to 6, the utility model discloses a pH value measuring device for a desulfurizing tower, which comprises a pH sensor 1 and a sensor connecting device which are coaxially arranged; the sensor connecting device comprises a pipeline nipple 2 and a manual ball valve 3;

the two axial ends of the manual ball valve 3 are detachably connected with the pipeline nipple 2 through a connecting flange 5, so that the manual ball valve is convenient to replace and maintain; the PH sensor 1 comprises a detection end 11 extending into the desulfurizing tower 6 and a fixed end 12 opposite to the detection end; the fixed end 12 is fixed with a flange blind plate 4, and the flange blind plate 4 is connected with one end of the sensor connecting device through a flange; in order to enable the detection end 12 of the PH sensor 1 to extend into the desulfurization tower 6, the length of the PH sensor 1 is greater than that of the sensor connection device, so as to ensure the accuracy of PH measurement.

Specifically, a through hole is formed in the center of the flange blind plate 4; the fixed end of the PH sensor 1 is fixed with the flange blind plate 4 through the through hole;

when the PH value needs to be maintained or is calibrated by a calibration solution, the flange blind plate 4 fixed with the PH sensor 1 can be detached and the PH sensor 1 can be drawn out; the manual ball valve 3 is closed in the process of pumping to prevent the slurry in the desulfurizing tower 6 from flowing out; when the PH value overhauls the completion or when maring the completion, stretch into inside the device with PH sensor 1, open the valve and pass the valve body with PH sensor 1 rapidly and stretch into 6 insides of desulfurizing tower when stretching into 3 positions of manual ball valve, pass through the flange blind flange 4 that is fixed with PH sensor 1 through the screw and the flange on pipeline nipple 2 is fixed.

The embodiments of the present invention have been described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (2)

1. A pH value measuring device for a desulfurizing tower comprises a pH sensor and a sensor connecting device which are coaxially arranged; the method is characterized in that: the sensor connecting device comprises a pipeline short section and a manual ball valve;

the two axial ends of the manual ball valve are connected with the pipeline short section flange; the PH sensor comprises a detection end extending into the desulfurizing tower and a fixed end opposite to the detection end; the fixed end is fixed with a flange blind plate, and the flange blind plate is connected with one end of the sensor connecting device through a flange;

the length of the PH sensor is larger than that of the sensor connecting device.

2. The pH measuring device for a desulfurizing tower according to claim 1, wherein: a through hole is formed in the center of the flange blind plate; the fixed end of the PH sensor is fixed with the flange blind plate through the through hole.

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