CN202351208U - Slurry potential of hydrogen (PH) value measuring auxiliary device for flue gas desulfurization island - Google Patents
Slurry potential of hydrogen (PH) value measuring auxiliary device for flue gas desulfurization island Download PDFInfo
- Publication number
- CN202351208U CN202351208U CN201120337045XU CN201120337045U CN202351208U CN 202351208 U CN202351208 U CN 202351208U CN 201120337045X U CN201120337045X U CN 201120337045XU CN 201120337045 U CN201120337045 U CN 201120337045U CN 202351208 U CN202351208 U CN 202351208U
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- slurries
- value
- flue gas
- auxiliary device
- electrode
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Abstract
The utility model discloses a potential of hydrogen (PH) value measuring auxiliary device capable of prolonging the service life of a PH electrode in a slurry PH value measuring system for a flue gas desulfurization island and avoiding blockage of a PH value measuring pipeline. The PH value measuring auxiliary device comprises a slurry sampling pipe, a first valve, a second valve, the PH electrode and a corresponding connection pipeline. The auxiliary device and the PH value measuring system are used together for automatically and periodically measuring a PH value of slurry, requirements for measurement of the PH value of the slurry of the flue gas desulfurization island are met, and the problems of short service life of the PH electrode and blockage of the measuring pipeline are solved.
Description
[technical field]
The utility model belongs to the surveying instrument technical field, relates to a kind of servicing unit of measuring the slurries pH value, especially is fit to slurries pH value measurement easy to wear or that pollute the PH electrode.
[background technology]
Existing fume desulfurating absorption tower slurries pH value is measured the PH electrode is installed on the gypsum extraction pump outlet branch line; Because slurries contain gypsum crystal; The PH wear to electrodes is serious under the flow velocity effect, and serviceable life is short, and there is the line clogging phenomenon in the part field of employment simultaneously.At present, have some improved forms, as drawing pipeline from the absorption tower, make slurries enter trench, the PH electrode is installed in draws on the pipeline; Make flash chamber for another example, the PH electrode is installed on the flash chamber reduces flow velocity or the like, in any case but improve, have that flow velocity galling PH electrode, flow velocity are low slurries to be occurred and contain the deposition of solid blockage problem.
[summary of the invention]
The utility model purpose is for the wearing and tearing PH electrode that solves existing measurement means existence, the problem of line clogging, provides a kind of flue gas desulfurization island pH value to measure servicing unit, can solve PH wear to electrodes, line clogging problem.
The flue gas desulfurization island slurries pH value that the utility model provides is measured servicing unit; Comprise that a position is lower than entry and exit pipeline, the sectional area slurries stopple coupon greater than the entry and exit pipeline; First valve that is connected with bottom, absorption tower or gypsum slurries extraction pump export pipeline and second valve that is connected with the service water pipeline are installed in the slurries stopple coupon upper reaches, and slurries stopple coupon downstream connect row's trench pipeline.
Measuring principle of the utility model and measuring process: manufacture one be used to install the PH electrode the slurries stopple coupon; Its installation site is lower than the entry and exit pipeline, and sectional area is controlled first valve, second valve greater than entry and exit pipeline (this structure can reduce flow velocity) through numerical control device; Automatically periodically slurries are charged into the slurries stopple coupon; Treat (about 2 minutes) behind the numerical stability that the PH measuring system records that the pH value of record this moment charges into the slurries stopple coupon with service water then and replaces slurries.
This measuring method has advantage:
1) the PH electrode only short-term washed away by slurries, reduce the PH wear to electrodes greatly; The slurries stopple coupon has larger sectional area with respect to its upstream, can reduce flow velocity, also helps reducing the PH wear to electrodes.
2) slurries only stopped in pipeline 2 minutes, can not form to contain deposition of solid, did not have the line clogging problem.
3) replace slurries with service water and avoided the slurries deposition on the one hand, played maintenance action on the other hand, greatly reduce the pollution speed of PH electrode, prolonged the PH electrode life more the PH electrode.
[description of drawings]
Figure measures the structural representation of servicing unit for this pH value.Servicing unit is made up of slurries stopple coupon 4, first valve 1, second valve 2, PH electrode 3 and corresponding connecting line.The position of slurries stopple coupon should be lower than its entry and exit pipeline.
[embodiment]
Numerical control device is controlled the action of first valve, second valve, and this servicing unit is accomplished PH jointly with the PH measuring system and measured.
Numerical control device is at first opened first valve, enters trench behind the slurry flow slurries stopple coupon, closes first valve after time-delay a period of time, (looking the field condition test confirms) treated to be full of in the stopple coupon reliable slurry samples, delays time the pH value that record is measured at this moment 2 minutes.Open second valve then, enter trench behind the service water circulation slurries stopple coupon, time-delay a period of time (looking the field condition test confirms) treats to close second valve after slurries are by the water displacement in the stopple coupon.
Above flow process was undertaken by the numerical control device Control Circulation cycle, and each cycle is the pH value of new record more, such as being set to 10 minutes measuring period.
Claims (1)
1. a flue gas desulfurization island slurries pH value is measured servicing unit; It is characterized in that; This servicing unit comprises that a position is lower than entry and exit pipeline, the sectional area slurries stopple coupon greater than the entry and exit pipeline; The PH electrode of installing on the slurries stopple coupon, first valve, second valve that install at the slurries stopple coupon upper reaches, corresponding connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120337045XU CN202351208U (en) | 2011-09-09 | 2011-09-09 | Slurry potential of hydrogen (PH) value measuring auxiliary device for flue gas desulfurization island |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120337045XU CN202351208U (en) | 2011-09-09 | 2011-09-09 | Slurry potential of hydrogen (PH) value measuring auxiliary device for flue gas desulfurization island |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351208U true CN202351208U (en) | 2012-07-25 |
Family
ID=46540204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120337045XU Expired - Lifetime CN202351208U (en) | 2011-09-09 | 2011-09-09 | Slurry potential of hydrogen (PH) value measuring auxiliary device for flue gas desulfurization island |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202351208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841119A (en) * | 2012-09-29 | 2012-12-26 | 安徽金星钛白（集团）有限公司 | On-line pH (Potential of Hydrogen) value sampling measurement device for slurry material |
| CN103630578A (en) * | 2013-12-13 | 2014-03-12 | 贵州电力试验研究院 | pH on-line measurement method and device of desulfurizing absorption tower |
-
2011
- 2011-09-09 CN CN201120337045XU patent/CN202351208U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841119A (en) * | 2012-09-29 | 2012-12-26 | 安徽金星钛白（集团）有限公司 | On-line pH (Potential of Hydrogen) value sampling measurement device for slurry material |
| CN103630578A (en) * | 2013-12-13 | 2014-03-12 | 贵州电力试验研究院 | pH on-line measurement method and device of desulfurizing absorption tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |