CN214622183U - Continuous automatic measuring and sampling device for density and pH value of slurry of desulfurization absorption tower - Google Patents
Continuous automatic measuring and sampling device for density and pH value of slurry of desulfurization absorption tower Download PDFInfo
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- CN214622183U CN214622183U CN202120814703.3U CN202120814703U CN214622183U CN 214622183 U CN214622183 U CN 214622183U CN 202120814703 U CN202120814703 U CN 202120814703U CN 214622183 U CN214622183 U CN 214622183U
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Abstract
A continuous automatic measuring and sampling device for the density and the pH value of slurry of a desulfurization absorption tower. The prior art is installed in thick liquid discharge pump outlet pipeline branch road, because sampling pipeline blocks up, leaks, influences the measurement accuracy, and the gravity flow type can only intermittent type nature sample measurement, and pH value can't continuous measurement. The utility model discloses the constitution includes: connect steel pipe (1), connect steel pipe one end and connect gradually taper sleeve A (2), taper sleeve B (3), taper sleeve C (4), taper sleeve C passes through ring flange A (5) and is connected with steel pipe body (8), steel pipe body left side is passed through flange (7) and is connected with pH meter interface (6), pressure transmitter interface A (14) is connected respectively on its right side, pressure transmitter interface B (16), it is connected with evacuation pipe (12) through ring flange B (10) above that, its front end passes through overflow pipe flange (9) and is connected with overflow pipe (28). The utility model is used for desulfurization absorption tower thick liquid density and the continuous automatic measure sampling device of pH value.
Description
Technical Field
The utility model relates to an environmental protection desulfurization technical field, concretely relates to continuous automatic measurement sampling device of desulfurization absorption tower thick liquid density and pH value.
Background
The limestone-gypsum method flue gas desulfurization device is the main system for removing sulfur dioxide in flue gas of a coal-fired power plant and ensuring that flue gas pollutants reach the standard and are discharged, wherein the slurry density and the pH value of an absorption tower are important operation parameters to be monitored in the desulfurization operation process, and the current slurry density and pH value measuring devices generally have two modes: the other one is arranged on the branch of an outlet pipeline of the slurry discharge pump, but the measurement accuracy of the slurry density and the pH meter is influenced due to the blockage and leakage of a sampling pipeline; in addition, the other gravity flow sampling device can only intermittently sample and measure, so that the pH value cannot be continuously measured.
Disclosure of Invention
The utility model aims at providing a desulfurization absorption tower thick liquid density and pH value automatic measurement sampling device in succession, the device carry inside thick liquid to the tower outside through the mode that adopts the gravity flow, and then measure thick liquid density and pH value, avoided the influence of absorption tower internal arrangement to measuring result, improved the parameter measurement accuracy, and no longer need the thick liquid discharge pump pipeline to connect out, saved the energy consumption of thick liquid discharge pump.
The above purpose is realized by the following technical scheme:
the utility model provides a desulfurization absorption tower thick liquid density and continuous automatic measurement sampling device of pH value, its constitution includes: connecting steel pipe, connecting steel pipe one end connect gradually taper sleeve A, taper sleeve B, taper sleeve C pass through ring flange A and this body coupling of steel pipe, steel pipe body left side pass through flange and pH meter interface connection, its right side is connected pressure transmitter interface A, pressure transmitter interface B respectively, pass through ring flange B and evacuation union coupling above that, its front end is passed through the overflow pipe flange and is connected with the overflow pipe, two flanges of evacuation pipe between install manual butterfly valve A, pressure transmitter interface A on install exhaust pipe A, pressure transmitter interface B on install exhaust pipe B, taper sleeve B side pass through the underflow pipe and be connected with manual butterfly valve B.
Desulfurization absorption tower thick liquid density and pH value automatic measurement sampling device in succession, the diaphragm valve is connected with absorption tower, pneumatic valve A respectively, pneumatic valve A be connected with pneumatic valve B, pneumatic valve C respectively, pneumatic valve B with the connection steel pipe connect, manual butterfly valve B pass through the pipe connection pit, pH meter interface connection pH electrode, pressure transmitter interface A connect pressure transmitter A, pressure transmitter interface B connect pressure transmitter B, the overflow pipe connect the pit, pneumatic valve C connect the technology water flushing system.
Has the advantages that:
1. the utility model relates to a desulfurization absorption tower thick liquid density and pH value automatic measurement sampling device in succession, this structure is carried inside thick liquid to the tower outside through the mode that adopts the gravity flow, and then measures thick liquid density and pH value, has avoided the influence of absorption tower internal arrangement to measuring result, has improved the parameter measurement accuracy, and no longer need thick liquid discharge pump pipeline to connect out, has saved the energy consumption of thick liquid discharge pump.
2. The utility model discloses a flange joint spare all adopts stainless steel, and the steel pipe adopts seamless stainless steel pipe, and this material has higher corrosion resistance, and intensity is high, the effectual life and the measurement quality who increases measurement sampling device.
3. The utility model discloses a body lower part taper sleeve A, taper sleeve B, taper sleeve C comprises three concentric reducer connecting piece, adopts the inside and outside welding mode, and the manufacturability is good, saves the cost, can effectively guarantee taper sleeve's leakproofness simultaneously, makes product safety in utilization environmental protection.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of fig. 1.
FIG. 3 is a process flow diagram of the present application.
Wherein: 1. connecting steel pipe, 2, taper sleeve A, 3, taper sleeve B, 4, taper sleeve C, 5, flange A, 6, pH meter interface, 7, connecting flange, 8, steel pipe body, 9, overflow pipe flange, 10, flange B, 11, manual butterfly valve A, 12, evacuation pipe, 13, exhaust conduit A, 14, pressure transmitter interface A, 15, exhaust conduit B, 16, pressure transmitter interface B, 17, manual butterfly valve B, 18, diaphragm valve, 19, pneumatic valve A, 20, pneumatic valve B, 21, pit, 22, process water flushing system, 23, pneumatic valve C, 24, pH electrode, 25, underflow pipe, 26, pressure transmitter A, 27, pressure transmitter B.
The specific implementation mode is as follows:
example 1:
the utility model provides a desulfurization absorption tower thick liquid density and continuous automatic measurement sampling device of pH value, its constitution includes: connect steel pipe 1, connection steel pipe one end connect gradually taper sleeve A2, taper sleeve B3, taper sleeve C4, taper sleeve C pass through ring flange A5 and be connected with steel pipe body 8, steel pipe body left side be connected with pH meter interface 6 through flange 7, pressure transmitter interface A14, pressure transmitter interface B16 are connected respectively on its right side, pass through ring flange B10 and be connected with evacuation pipe 12 above that, its front end is passed through overflow pipe flange 9 and is connected with overflow pipe 28, two flanges of evacuation pipe between install manual butterfly valve A11, pressure transmitter interface A on install exhaust pipe A13, pressure transmitter interface B on install exhaust pipe B15, taper sleeve B side be connected with manual butterfly valve B17 through underflow pipe 25.
Example 2:
according to embodiment 1 desulfurization absorption tower thick liquid density and pH value automatic continuous measurement sampling device, diaphragm valve 18 is connected with absorption tower, pneumatic valve A19 respectively, pneumatic valve A be connected with pneumatic valve B20, pneumatic valve C23 respectively, pneumatic valve B with the connection steel pipe connect, manual butterfly valve B pass through pipe connection pit 21, pH meter interface connection pH electrode 24, pressure transmitter interface A connect pressure transmitter A26, pressure transmitter interface B connect pressure transmitter B27, the overflow pipe connect the pit, pneumatic valve C connect process water flushing system 22.
Example 3:
the method for measuring the desulfurization absorption tower slurry density and pH value continuous automatic measurement sampling device according to the embodiment 1-2 comprises the following specific steps:
firstly, a sampling port of the slurry, namely a pH meter interface is arranged at a position about 0.5m away from the bottom of an absorption tower, the slurry enters a measuring and sampling device from the bottom of the measuring and sampling device through a diaphragm valve, a pneumatic valve A and a pneumatic valve B under the action of the slurry pressure in the absorption tower, flows out through an overflow hole after the measuring and sampling device is filled with the slurry, is discharged to a nearby pit, the measuring and sampling device measures and calculates the density of the corresponding slurry through the pressure generated by fixed height difference, and measures the pH value of the slurry in real time through a pH electrode;
the method comprises the following steps: opening a diaphragm valve, a pneumatic valve A and a pneumatic valve B, and discharging the slurry into a nearby trench after the slurry overflows from an overflow pipe in a measuring and sampling device;
step two: opening an emptying valve after the slurry enters the measuring and sampling device, namely closing the manual butterfly valve A after the manual butterfly valve A discharges gas;
step three: calculating the density of the slurry by using the difference value of the two pressure transmitters, and continuously measuring the pH value of the slurry by using a pH electrode;
step four: when the sampling device runs for a period of time or the deviation between the linear density value and the pH value and the manual test value is found to be large, closing the pneumatic valve A, keeping the pneumatic valve B open, opening the flushing water valve, flushing the sampling device, closing the pneumatic valve B after the sampling device is completely flushed, opening the pneumatic valve A, flushing the inlet pipeline of the sampling device, closing the pneumatic valve C after the sampling device is flushed for a period of time (5-10 minutes), and opening the pneumatic valve B, so that the sampling device can be put into operation again;
if need overhaul this sampling device then need close the diaphragm valve, open the manual butterfly valve of bottom evacuation, overhaul after arranging the inside thick liquid of this sampling device to the greatest extent.
Claims (2)
1. The utility model provides a desulfurization absorption tower thick liquid density and continuous automatic measurement sampling device of pH value, its constitution includes: connect the steel pipe, characterized by: connecting steel pipe one end connect gradually taper sleeve A, taper sleeve B, taper sleeve C pass through ring flange A and this body coupling of steel pipe, steel pipe body left side pass through flange and pH meter interface connection, pressure transmitter interface A, pressure transmitter interface B are connected respectively on its right side, pass through ring flange B above that and evacuation union coupling, its front end passes through the overflow pipe flange and is connected with the overflow pipe, two flanges of evacuation pipe between install manual butterfly valve A, pressure transmitter interface A on install steam exhaust pipe A, pressure transmitter interface B on install steam exhaust pipe B, taper sleeve B side pass through the underflow pipe and be connected with manual butterfly valve B.
2. The continuous automatic measuring and sampling device for the density and the pH value of the slurry of the desulfurization absorption tower as claimed in claim 1, wherein: the diaphragm valve is connected with absorption tower, pneumatic valve A respectively, pneumatic valve A be connected with pneumatic valve B, pneumatic valve C respectively, pneumatic valve B with the connection steel pipe connect, manual butterfly valve B pass through the tube coupling pit, pH meter interface connection pH electrode, pressure transmitter interface A connect pressure transmitter A, pressure transmitter interface B connect pressure transmitter B, the overflow pipe connect the pit, pneumatic valve C connect the technology water washing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120814703.3U CN214622183U (en) | 2021-04-21 | 2021-04-21 | Continuous automatic measuring and sampling device for density and pH value of slurry of desulfurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120814703.3U CN214622183U (en) | 2021-04-21 | 2021-04-21 | Continuous automatic measuring and sampling device for density and pH value of slurry of desulfurization absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214622183U true CN214622183U (en) | 2021-11-05 |
Family
ID=78403967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120814703.3U Expired - Fee Related CN214622183U (en) | 2021-04-21 | 2021-04-21 | Continuous automatic measuring and sampling device for density and pH value of slurry of desulfurization absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214622183U (en) |
-
2021
- 2021-04-21 CN CN202120814703.3U patent/CN214622183U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |