CN202693578U - Seriflux potential of hydrogen (pH) value and density combined online measurement device - Google Patents

Seriflux potential of hydrogen (pH) value and density combined online measurement device Download PDF

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Publication number
CN202693578U
CN202693578U CN 201220384323 CN201220384323U CN202693578U CN 202693578 U CN202693578 U CN 202693578U CN 201220384323 CN201220384323 CN 201220384323 CN 201220384323 U CN201220384323 U CN 201220384323U CN 202693578 U CN202693578 U CN 202693578U
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China
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seriflux
value
density
meter
pipe
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Expired - Lifetime
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CN 201220384323
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Chinese (zh)
Inventor
张长伟
贾波
王亮
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Datang Environment Industry Group Co Ltd
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China Datang Environmental Technology Co Ltd
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Abstract

The utility model relates to a seriflux potential of hydrogen (pH) value and density combined online measurement device which comprises a seriflux pipe (9), a pH meter (3) and a density meter (4). The seriflux pipe (9) is sequentially provided with a seriflux inlet (1), an inlet valve (2), the pH meter (3), the density meter (4), an outlet valve (5) and a seriflux outlet (6). When the device is used, a liquid inlet of the seriflux pipe can be directly connected at the opening position of an absorption tower or other kettles, for example, an open is positioned on the tower wall at the 1.5 position at the tower bottom of a smoke desulfurization tower to lead out the seriflux pipe, and seriflux is drained to a trench through the seriflux outlet after the pH value and the density value are measured. The device reduces abrasion of the density meter and the pH meter, simplifies pipelines and valves, facilitates operation of operators, simultaneously is accurate in measurement, and guarantees safe, stable and efficient running of a desulfurization system.

Description

The compound online measurement mechanism of a kind of slurry pH value and density
Technical field
The utility model relates to a kind of on-line measurement device for slurry pH value or density, particularly a kind of high concentration slurries pH value and compound online measurement mechanism of density of being convenient to on-line rinsing, convenient inspection, care and maintenance.
Background technology
The measurement instrument of fluid density and pH value and device are widely used in fields such as chemical industry, environmental protection, electric power.In the Flue Gas Desulfurization Engineering in Power Plant project, the technological parameter that the pH value of slurries and density are system core is the important indicator of weighing chemical response situation, assessment apparatus overall performance in the absorption tower, and stable operation plays an important role to security of system.But because adhesiveness, corrosivity and the wearability of gypsum slurries easily cause fouling, obstruction, there are the problems such as poor reliability, maintenance workload is large, the Instrument use life-span is short in most on-line measurement devices at present.
PH value sensor has three kinds of mounting meanss: immersion, the formula of flowing through and plug-in type.Immersion is that pH value installation of sensors is directly contacted with liquid in container, is easy to safeguard, but in most cases can not realizes well.The formula of flowing through generally is installed in to be measured in the arm, and measuring channel is complicated, and the problems such as a blockage, sensor abrasion easily occur.Plug-in type directly is inserted in the liquid by encapsulant and separation valve door, the same problem that the sensor abrasion easily occurs.All there are the inconvenience of On line inspection, cleaning, demarcation and maintenance in the formula of flowing through and plug-in type.
For desulphurization system, present serosity density measurement method mainly contains three kinds: gamma-rays radiation absorption mensuration, Coriolis discharge method, differential pressure method.Front two kinds of method costs are very high, wherein use the Coriolis densitometer all to have unstable properties, poor reliability, measurement pipeline serious wear, change the problems such as spare unit are frequent, maintenance cost is high.Differential pressure method is with low cost, but will consider that gypsum deposition, turbulent flow are on measuring the impact of numerical value when installing.
CN202041530U discloses a kind of fluid density and the compound online measurement mechanism of pH value, comprise measuring cylinder, measuring cylinder is provided with feed tube, discharging tube and run-down pipe, it is characterized in that design and adjusting by flow, measuring cylinder keeps constant liquid level, can be used for the installation of immersion pH value sensor or differential pressure densimeter.Feed tube is provided with the dip tube valve, when measurement mechanism uses, and the feed tube valve opening.When measurement mechanism was stopped using, feed tube valve closing, liquid all flowed out measuring cylinder through discharging tube.Discharging tube is provided with the discharging tube valve, when measurement mechanism uses, and the discharging tube valve opening.Can be derived by engineering fluid mechanics knowledge obtains, and the liquid density measurement value that this measurement mechanism obtains and its actual value only differ a coefficient relevant with the measuring cylinder physical dimension.But this measurement mechanism on-line rinsing, convenient inspection, care and maintenance, the serum density and the pH value that are specially adapted in power plant's wet desulphurization are measured.
The compound online measurement mechanism complex structure of aforesaid liquid density and pH value.And for wet desulfurization system, absorption tower pH meter, densitometer, general design and installation position connects in the outlet of absorption tower gypsum extraction pump, need during operation to pay no attention to cut-off to slurries by absorption tower gypsum extraction pump, cause that gypsum extraction pump power consumption is large, wearing and tearing are large, can't realize the start and stop of itemizing, after dewatering system is stopped transport, the gypsum extraction pump still need operate to densitometer, pH meter provides slurries, the gypsum extraction pump can't obtain the finishing of stopping transport for a long time, when defective occuring to process, the monitoring of density value, pH value is impacted.Operation very easily makes gypsum extraction pump and pipe wear serious like this, often occurs leaking stopping up, and pH value, density value data can't normally obtain monitoring, give whole desulphurization system safety, stable, efficiently move to have brought and have a strong impact on.
In view of this, special the utility model that proposes.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of slurry pH value and density compound online measurement mechanism, this apparatus structure is simple, can directly be connected with absorption tower etc., is specially adapted to slurry pH value and density measure in the power plant smoke desulfurization by wet method.
For achieving the above object, the utility model adopts following technical scheme:
The compound online measurement mechanism of a kind of slurry pH value and density comprises slurry pipe, pH meter and densitometer, is sequentially with slurries entrance, inlet valve, pH meter, densitometer, outlet valve and slurries outlet on the described slurry pipe.
The compound online measurement mechanism of a kind of slurry pH value provided by the utility model and density can further also be provided with washpipe between pH meter and inlet valve, the washpipe valve is installed on the described washpipe.
This device can be directly be connected the direct tapping that the inlet of slurry pipe is connected on absorption tower or other still with absorption tower etc. in use.
The compound online measurement mechanism of slurry pH value provided by the utility model and density is specially adapted to slurry pH value and the density measure in the power plant smoke desulfurization by wet method.
When the slurry pH value in being applied to power plant smoke desulfurization by wet method and density measure, can at the bottom of the tower of fume desulfurating absorption tower, the tower wall perforate at 1.5 places draw slurry pipe, the inlet of slurry pipe is connected to tapping, slurries enter pH meter and densitometer via inlet, after the pH value and density value that goes out slurries to be measured, its slurries drain into trench via the slurries outlet.During installation, desirable niter cream is discharged system's reflux line, and piping system is simple and reliable.The gypsum extraction pump does not need continuous operation according to absorption tower density start and stop, reduces energy consumption, reduces pump, system pipeline, valve wearing and tearing, increases the service life.
Simultaneously, this device has reduced the wearing and tearing of densitometer, pH meter, has simplified pipeline, valve, is convenient to operations staff's operation, measures accurately simultaneously, has guaranteed desulphurization system safety, stable, efficient operation.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is slurry pH value and the compound online measurement mechanism synoptic diagram of density of the utility model embodiment one.
Wherein:
1---the slurries entrance, 2---inlet valve, 3---pH meter, 4---densitometer, 5---outlet valve, 6---the slurries outlet, 7---the washpipe valve, 8---washpipe, 9---slurry pipe.
Embodiment
Embodiment one
Below in conjunction with accompanying drawing the utility model is described in detail, the compound online measurement mechanism of a kind of slurry pH value and density, comprise slurry pipe 9, pH meter 3 and densitometer 4, be sequentially with slurries entrance 1, inlet valve 2, pH meter 3, densitometer 4, outlet valve 5 and slurries outlet 6 on the described slurry pipe 9.Referring to Fig. 1.
This device can be applicable to multiple fields, in use, can directly the inlet of slurry pipe be connected on the tapping of absorption tower or other still, as in power plant, can be at the bottom of the tower of fume desulfurating absorption tower the tower wall perforate at 1.5 places, the inlet of slurry pipe is connected on tapping, the compound online measurement mechanism of slurry pH value described in the utility model and density is installed, after measuring the pH value and density value of slurries, its slurries drain into trench via the slurries outlet.Desirable niter cream is discharged system's reflux line, and piping system is simple and reliable.The gypsum extraction pump does not need continuous operation according to absorption tower density start and stop, reduces energy consumption, reduces pump, system pipeline, valve wearing and tearing, increases the service life.
Embodiment two
Present embodiment is the further improvement to embodiment one, in order to prevent line clogging, establishes a washpipe 8 between pH meter 3 and inlet valve 2, and washpipe valve 7 is installed on the described washpipe 8.Referring to Fig. 1.Outlet valve 5 flow rate adjustables are closed inlet valve when flushing, open the washpipe valve, carry out periodic flushing, prevent the obstruction of pipeline.
Other technical characterictic of present embodiment is with embodiment one.

Claims (2)

1. a slurry pH value and the compound online measurement mechanism of density, it is characterized in that comprising slurry pipe (9), pH meter (3) and densitometer (4), be sequentially with slurries entrance (1), inlet valve (2), pH meter (3), densitometer (4), outlet valve (5) and slurries outlets (6) on the described slurry pipe (9).
2. the compound online measurement mechanism of slurry pH value according to claim 1 and density is characterized in that, also is provided with washpipe (8) between pH meter (3) and inlet valve (2), the upper washpipe valve (7) of installing of described washpipe (8).
CN 201220384323 2012-08-03 2012-08-03 Seriflux potential of hydrogen (pH) value and density combined online measurement device Expired - Lifetime CN202693578U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220384323 CN202693578U (en) 2012-08-03 2012-08-03 Seriflux potential of hydrogen (pH) value and density combined online measurement device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220384323 CN202693578U (en) 2012-08-03 2012-08-03 Seriflux potential of hydrogen (pH) value and density combined online measurement device

Publications (1)

Publication Number Publication Date
CN202693578U true CN202693578U (en) 2013-01-23

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Application Number Title Priority Date Filing Date
CN 201220384323 Expired - Lifetime CN202693578U (en) 2012-08-03 2012-08-03 Seriflux potential of hydrogen (pH) value and density combined online measurement device

Country Status (1)

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CN (1) CN202693578U (en)

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120

Patentee after: DATANG TECHNOLOGY INDUSTRY Co.,Ltd.

Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120

Patentee before: CHINA DATANG GROUP ENVIRONMENT TECHNOLOGY CO.,LTD.

Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120

Patentee after: DATANG TECHNOLOGY INDUSTRY GROUP CO.,LTD.

Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120

Patentee before: DATANG TECHNOLOGY INDUSTRY Co.,Ltd.

Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120

Patentee after: DATANG ENVIRONMENT INDUSTRY GROUP Co.,Ltd.

Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120

Patentee before: DATANG TECHNOLOGY INDUSTRY GROUP CO.,LTD.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20130123