CN206945475U - Wet flue gas desulfurization tower serum density and pH measurement apparatus - Google Patents
Wet flue gas desulfurization tower serum density and pH measurement apparatus Download PDFInfo
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- CN206945475U CN206945475U CN201720736677.0U CN201720736677U CN206945475U CN 206945475 U CN206945475 U CN 206945475U CN 201720736677 U CN201720736677 U CN 201720736677U CN 206945475 U CN206945475 U CN 206945475U
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Abstract
The utility model discloses wet flue gas desulfurization tower serum density and pH measurement apparatus, desulfurizing tower pipe joint, filtering porous plate, measurement case, the first delivery pipe for including being sequentially connected by slurries flow direction, filtering porous plate is connected with measuring the bottom of case, first delivery pipe is connected to the top of measurement case, and the top cover for measuring case is provided with the plug-in type densitometer and pH meter inserted in casing.The utility model has the advantages that：Pass through porous filter plate; filter out the bulky grain in slurries; prevent impact of the bulky grain to plug-in type densitometer and pH meter; plug-in type densitometer and pH meter is protected not to be damaged; for slurries in measurement case using bottom in and top out by the way of, allowing slurries to slow down flowing in measurement case further reduces impact of the slurries to plug-in type densitometer and pH meter, ensures plug-in type densitometer and pH meter is safe for operation, stabilization and reliability; the service life of extension device, substantially reduces operation expense.
Description
Technical field
The present invention relates to wet flue gas desulfurization tower serum density and pH measurement apparatus.
Background technology
China requires increasingly strict to coal unit pollutant emission in recent years, has put into effect a series of major actions, has kept under strict control
Air pollution emission, strengthen atmospheric environment improvement.National Development and Reform Committee, Bureau of Energy, ministries and commissions of Chinese Ministry of Environmental Protection three are under in September, 2014 is combined
Send out " hair changes [2014] No. 2093 " file, it is desirable to the minimum discharge and reducing energy consumption of coal unit are completed before the year two thousand twenty,
The Air Pollutant Emission concentration of the newly-built coal unit in eastern region is asked to basically reach coal-fired turbine emission limit, wherein SO2Row
Put concentration and be not more than 35mg/Nm3.Sulfur removal technology at present in the world is more, and wherein limestone/lime-gypsum wet flue gas takes off
Sulphur technique is most widely used, and occupation rate of market reaches more than 80%.
Traditional wet flue gas desulfurization tower serum density and PH metering systems is more, wherein most popular measuring method
For：1) density of mass flux meter and PH meters are arranged on the slurries branch road reflux line of gypsum slurries discharge pump discharge；2) set
Special measuring pump is put, by density of mass flux meter and PH meters on the slurry reflux pipeline of outlet；3) set in tower bottom
Put and export oblique discharge tube upward, density of mass flux meter and PH meters are arranged on discharge tube interface.
Mode 1) require that gypsum slurries excavationg pump is continuously run, operation expense is high, and measurement pipe Louis abrasion and
Block；Mode 2) need to increase measuring pump, increase investment operation expense；Mode 3) the measurement pipe appearance of a street easily blocks, and
And the bulk solid impurity in slurries easily impacts flux density meter and PH meters.
In order to solve problem above, engineers and technicians disclose wet desulphurization absorption tower serum density pH value integrated test
Measure device, wet flue gas desulfurization absorption tower slurry PH meter densimeter measurement devices and methods therefors.Both devices are to a certain degree
On reduce failure risk, improve density and the security reliability of PH measurements, but these devices still Shortcomings, such as the
A kind of device easily makes the bulk solid impurity in the stock tank of absorption tower enter connecting pipe, exists and hits flux density meter and PH
The risk of meter, in addition, mass flowmenter and PH meter use series design, once mass flowmenter break down need dismounting when,
Slurries will be unable to flow to PH meters, therefore can not realize the on-line checking to pH value；Second of device in order to meet densimeter measurement,
The flow velocity in pipeline is measured with flow rate regulating valve goalkeeper and is adjusted to below 5m/s, and slurry flow rate, structure are measured by leverage
Complexity, operation operation is not easy enough, in addition, the speed governing valve in the device is washed away by slurries for a long time, influences safe for operation, steady
Fixed and reliability.
The content of the invention
It is an object of the invention to provide wet flue gas desulfurization tower serum density and pH measurement apparatus, can effectively solve the problem that existing
Not high, the operation maintenance with the presence of wet flue gas desulfurization tower fluid densitometer and pH meter operation potential safety hazard, stability and reliability
The problem of cost is high.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：Wet flue gas desulfurization tower is starched
Liquid-tight degree and pH measurement apparatus, the desulfurizing tower pipe joint, filtering porous plate, measurement for including being sequentially connected by slurries flow direction
Case, the first delivery pipe, the filtering porous plate are connected with measuring the bottom of case, and first delivery pipe is connected to the upper of measurement case
Portion, the top cover of the measurement case are provided with the plug-in type densitometer of insertion case in-vivo measurement serum density, and the top cover for measuring case is also set
There is insertion case in-vivo measurement slurries pH pH meter.
Preferably, the measurement bottom portion is provided with flanged pipe fitting, and the flanged pipe fitting includes ring flange and is fixed on
The pipe fitting stretched into straight up on ring flange in measurement case；The impact of slurries is reduced, ring flange is used to connect, and tube outer diameter is less than
Bottom portion internal diameter of the pipeline is measured, reduces slurries influx.
Preferably, the measurement case includes columnar top and the bottom of cone bucket shape, the mother of the bottom of the measurement case
The angle of line and horizontal plane is 45~65 °；Make the slurries rate of climb slack-off.
Preferably, the upper diameter of the measurement case is DN400 to DN600, length 400-1000mm；Size too billow
Take space, size is too small to be unfavorable for reducing flow velocity of the slurries in measurement case.
Preferably, the measurement case is connected by the first threeway with filtering porous plate, and first threeway is also connected with second
Delivery pipe, second delivery pipe are provided with drain valve；Second delivery pipe and drain valve are set, to that will be surveyed during measurement case maintenance
Unnecessary slurries discharge in measuring tank.
Preferably, the second threeway is additionally provided between the filtering porous plate and measurement case, punching is connected with second threeway
Pipe is washed, the flush pipe is provided with flushing valve, control valve is additionally provided with the pipeline between second threeway and measurement case；
Filtering porous plate is backwashed, prevents it from blocking.
Preferably, the filtering porous plate is provided with control flushing valve and the differential pressure transmitter of control valve；Utilize difference
Pressure transmitter, which is realized, automatically controls flushing valve and control valve, and realization is rinsed to filtering porous plate automatically.
Preferably, it is additionally provided with maintenance valve between the desulfurizing tower pipe joint and filtering porous plate；Close maintenance valve
Whole TCH test channel can be overhauled.
Preferably, the rear and front end of the filtering porous plate is connected by taper connection pipe with pipeline respectively, the taper
The larger one end of connecting tube is connected with filtering porous plate；The flow velocity for flowing through filtering porous plate is reduced, improves filter effect.
Compared with prior art, it is an advantage of the invention that：By porous filter plate, the bulky grain in slurries is filtered out, is prevented
Only impact of the bulky grain to plug-in type densitometer and pH meter, plug-in type densitometer and pH meter is protected not to be damaged, in measurement case
Slurries by the way of bottom in and top out, allow slurries slow down in measurement case flowing further reduce slurries to plug-in type densitometer and
The impact of pH meter, ensure plug-in type densitometer and pH meter is safe for operation, stable and reliability, the service life of extension device, greatly
It is big to reduce operation expense.
Brief description of the drawings
Fig. 1 is wet flue gas desulfurization tower serum density of the present invention and the structural representation of pH measurement apparatus；
Fig. 2 is pH meter and plug-in type densitometer interface top view on the top cover for measured in the present invention case；
Fig. 3 is flanged pipe fitting structural section schematic diagram in invention.
Embodiment
It is wet flue gas desulfurization tower serum density of the present invention and pH measurement apparatus-Zhou Bing embodiment refering to Fig. 1, by slurries
Flow direction, including be sequentially connected desulfurizing tower pipe joint 1, maintenance valve 2, taper connection pipe 3, filtering porous plate 4, taper
Connecting tube 3, the first threeway 24, measurement case 15, the first delivery pipe 18, former and later two taper connection pipes 3 of filtering porous plate 4 are all big
Head is connected with filtering porous plate 4, to reduce the slurry flow rate for flowing through filtering porous plate 4, is easy to filter the bulky grain in slurries
Material, the first threeway 24 are connected with measuring the bottom of case 15, and the first delivery pipe 18 is connected with measuring the top of case 15, measure case 15
Top cover 16 be provided with insertion case in-vivo measurement serum density plug-in type densitometer 20, measurement case 15 top cover 16 be additionally provided with insertion
Case in-vivo measurement slurries pH pH meter 21.By porous filter plate, the bulky grain in slurries is filtered out, prevents bulky grain to insertion
The impact of formula densitometer 20 and pH meter 21, plug-in type densitometer 20 and pH meter 21 is protected not to be damaged, the slurries in measurement case 15
By the way of bottom in and top out, allowing slurries to slow down flowing in measurement case 15 further reduces slurries to the He of plug-in type densitometer 20
The impact of pH meter 21, ensure that plug-in type densitometer 20 and pH meter 21 are safe for operation, stablize and reliability, extension device use the longevity
Life, substantially reduces operation expense.
In order to reduce the speed of slurries in measurement case 15, the impact to plug-in type densitometer 20 and pH meter 21 is reduced, is measured
The bottom of case 15 is provided with flanged pipe fitting 14, and flanged pipe fitting 14 includes ring flange 22 and be fixed on ring flange 22 to stretch straight up
Enter to measure the pipe fitting 23 in case 15, measurement case 15 includes columnar top and the bottom of cone bucket shape, described to measure under case 15
The bus in portion and the angle of horizontal plane are 45~65 °, and the upper diameter for measuring case is DN400 to DN600, length 400-
1000mm。
The second delivery pipe 13 is further connected with the first threeway 24, the second delivery pipe 13 is provided with drain valve 12, it is necessary to surveying
When measuring tank 15 is safeguarded, the slurries measured in case 15 can be emitted from the second delivery pipe 13.
In order to periodically be backwashed to filtering porous plate 4, first threeway 24 on the pipeline at the rear of filtering porous plate 4
Front is additionally provided with the second threeway 25, flush pipe 9 is connected with the second threeway 25, the flush pipe 9 is provided with flushing valve 8, described
Control valve 10 is additionally provided with pipeline between second threeway 25 and measurement case 15, while differential pressure is provided with filtering porous plate 4
Transmitter 6, differential pressure transmitter 6 can control flushing valve 8 and the switch of control valve 10, realize automatic backwash.
During normal use, maintenance valve 2, control valve 10 are opened, and flushing valve 8 and drain valve 12 are closed, when needs pair
When measurement case 15 is overhauled, maintenance valve 2 is closed, and drain valve 12 is opened, and the slurries remained in test box are discharged from second
Pipe 13 is discharged.
As numerical value >=0.05MPa of the differential pressure transmitter 6, self-closing control valve door 10, flushing valve is automatically opened up
Door 8, closing flushing valve door 8 after the 10-30 seconds is rinsed, then open control valve 10, realization is rushed to filtering porous plate 4 automatically
Wash.
The specific embodiment of the present invention is the foregoing is only, but the technical characteristic of the present invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, all cover among the scope of the claims of the present invention by the change or modification made.
Claims (9)
1. wet flue gas desulfurization tower serum density and pH measurement apparatus, it is characterised in that：Include connecting successively by slurries flow direction
Desulfurizing tower pipe joint (1), filtering porous plate (4), measurement case (15), the first delivery pipe (18) connect, the filtering porous plate
It is connected with the bottom of measurement case (15), first delivery pipe (18) is connected to the top of measurement case (15), the measurement case
(15) top cover (16) is provided with the plug-in type densitometer (20) of insertion case in-vivo measurement serum density, the top cover of measurement case (15)
(16) it is additionally provided with insertion case in-vivo measurement slurries pH pH meter (21).
2. wet flue gas desulfurization tower serum density as claimed in claim 1 and pH measurement apparatus, it is characterised in that：The measurement
Case (15) bottom is provided with flanged pipe fitting (14), and the flanged pipe fitting (14) includes ring flange (22) and is fixed on ring flange
(22) pipe fitting (23) stretched into straight up in measurement case (15) on.
3. wet flue gas desulfurization tower serum density as claimed in claim 1 and pH measurement apparatus, it is characterised in that：The measurement
Case (15) includes columnar top and the bottom of cone bucket shape, the bus of bottom and the angle of horizontal plane of the measurement case (15)
For 45~65 °.
4. wet flue gas desulfurization tower serum density as claimed in claim 3 and pH measurement apparatus, it is characterised in that：The measurement
The upper diameter of case is DN400 to DN600, length 400-1000mm.
5. wet flue gas desulfurization tower serum density as claimed in claim 1 and pH measurement apparatus, it is characterised in that：The measurement
Case (15) is connected by the first threeway (24) with filtering porous plate, and first threeway (24) is also connected with the second delivery pipe (13),
Second delivery pipe (13) is provided with drain valve (12).
6. wet flue gas desulfurization tower serum density as claimed in claim 1 and pH measurement apparatus, it is characterised in that：The filtering
The second threeway (25) is additionally provided between porous plate (4) and measurement case (15), flush pipe (9) is connected with second threeway (25),
The flush pipe (9) is provided with flushing valve (8), is additionally provided with the pipeline between second threeway (25) and measurement case (15)
Control valve (10).
7. wet flue gas desulfurization tower serum density as claimed in claim 6 and pH measurement apparatus, it is characterised in that：The filtering
Porous plate (4) is provided with control flushing valve (8) and the differential pressure transmitter (6) of control valve (10).
8. wet flue gas desulfurization tower serum density as claimed in claim 1 and pH measurement apparatus, it is characterised in that：The desulfurization
Maintenance valve (2) is additionally provided between tower tube pipeline joint (1) and filtering porous plate (4).
9. wet flue gas desulfurization tower serum density as claimed in claim 1 and pH measurement apparatus, it is characterised in that：The filtering
The rear and front end of porous plate (4) is connected by taper connection pipe (3) with pipeline respectively, the taper connection pipe (3) it is larger one
End is connected with filtering porous plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720736677.0U CN206945475U (en) | 2017-06-23 | 2017-06-23 | Wet flue gas desulfurization tower serum density and pH measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720736677.0U CN206945475U (en) | 2017-06-23 | 2017-06-23 | Wet flue gas desulfurization tower serum density and pH measurement apparatus |
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| CN206945475U true CN206945475U (en) | 2018-01-30 |
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| CN201720736677.0U Active CN206945475U (en) | 2017-06-23 | 2017-06-23 | Wet flue gas desulfurization tower serum density and pH measurement apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030114A (en) * | 2018-09-10 | 2018-12-18 | 联峰钢铁（张家港）有限公司 | A kind of block-proof type desulfurizing tower sampler |
| CN109142646A (en) * | 2018-10-23 | 2019-01-04 | 大唐滨州发电有限公司 | A kind of thermal power plant desulfuration absorbing tower pH meter automatic sampling detection device |
| CN113376318A (en) * | 2020-08-17 | 2021-09-10 | 长沙康欧创新科技有限公司 | Method for measuring pH value of slurry in absorption tower for wet flue gas desulfurization |
-
2017
- 2017-06-23 CN CN201720736677.0U patent/CN206945475U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030114A (en) * | 2018-09-10 | 2018-12-18 | 联峰钢铁（张家港）有限公司 | A kind of block-proof type desulfurizing tower sampler |
| CN109142646A (en) * | 2018-10-23 | 2019-01-04 | 大唐滨州发电有限公司 | A kind of thermal power plant desulfuration absorbing tower pH meter automatic sampling detection device |
| CN109142646B (en) * | 2018-10-23 | 2021-04-23 | 大唐滨州发电有限公司 | Automatic sampling detection device of desulfurization absorption tower pH meter of thermal power factory |
| CN113376318A (en) * | 2020-08-17 | 2021-09-10 | 长沙康欧创新科技有限公司 | Method for measuring pH value of slurry in absorption tower for wet flue gas desulfurization |
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