CN205019929U - Coal -fired desulfurizing slurry pH detection device - Google Patents
Coal -fired desulfurizing slurry pH detection device Download PDFInfo
- Publication number
- CN205019929U CN205019929U CN201520668242.8U CN201520668242U CN205019929U CN 205019929 U CN205019929 U CN 205019929U CN 201520668242 U CN201520668242 U CN 201520668242U CN 205019929 U CN205019929 U CN 205019929U
- Authority
- CN
- China
- Prior art keywords
- valve
- electrode
- desulfurization
- liquid collecting
- collecting bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a coal -fired desulfurizing slurry pH detection device, including branch pipe, three -way valve, ji yebao, flow -through cell, pH monitored control system and back flow, the entry end of branch pipe insert desulfurizing slurry, its exit end behind a control valve with the first entry linkage of three -way valve, be connected with on the the second entrance of three -way valve and one be equipped with the scavenge pipe of valve, the export of three -way valve is connected with ji yebao's lower extreme behind a relief pressure valve, ji yebao's upper portion be equipped with the thick liquid export and with the entry linkage of flow -through cell, jiyebao's lower part is equipped with the drain and is connected with the back flow, the export of flow -through cell is connected with the entry end of back flow, PH monitored control system includes the pH electrode, the pH electrode is located in the flow -through cell. The utility model discloses both can also can carry out self - cleaning work to the pH electrode to the detecting of desulfurizing slurry pH value, have pH detect accurate, sensitivity is high, clean convenient, simple structure's characteristics, equipment is stable, the life extension.
Description
Technical field
The utility model relates to a kind of pH checkout gear, is specifically related to a kind of coal desulfurization slurries pH checkout gear.
Background technology
Along with the proposition that environmental protection and energy-saving and emission-reduction require, SO
2the improvement of polluting also receives increasing attention.In China except smelting iron and steel industry is SO
2discharge is large outdoor, and coal-burning power plant is also SO
2one of discharge rich and influential family.At present, coal-burning power plant mainly adopts wet desulphurization, namely absorbs SO with alkaline slurry
2, the effect of desulfurization how, and the pH value of desulfurization slurry controls most important.If pH value is too high, easily cause the waste of desulfurization slurry; If pH value is too low, then bad desulfurization effects.In the desulphurization system of industry, adopt pH checkout gear to carry out Real-Time Monitoring to slurries for this reason.And existing pH value checkout gear is all directly insert in desulfurization slurry absorption tower by pH electrode in use, following defect can be there is like this:
1, owing to containing solid particle tiny in a large number in desulfurization slurry, easily pH electrode is polluted, blocked, cause the pH value of slurries to measure inaccurate, affect the monitoring of the desulfurized effect of desulphurization system;
2, the temperature due to desulfurization slurry is large compared with high, fluid pressure, and large to the impulsive force of pH electrode, long impact easily causes pH electrode damage, affects sensitivity and the service life of checkout gear.
Utility model content
For above-mentioned deficiency, technical problem to be solved in the utility model be to provide a kind of have cleaning function, not fragile, detect sensitive coal desulfurization slurries pH checkout gear.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of coal desulfurization slurries pH checkout gear, comprise arm, triple valve, liquid collecting bag, flow cell, pH monitoring system and return duct, the arrival end access desulfurization slurry of described arm, its port of export is connected with the first entrance of triple valve after a control valve, second entrance of described triple valve is connected with one and establishes valvular scavenge pipe, the outlet of triple valve is connected with the lower end of liquid collecting bag after subtracting a pressure valve, the top of described liquid collecting bag is provided with serum outlet, and be connected with the entrance of flow cell, the bottom of liquid collecting bag is provided with sewage draining exit, and be connected with return duct, the outlet of described flow cell is connected with the arrival end of return duct, described pH monitoring system comprises pH electrode, and described pH electrode is located in flow cell.
In such scheme, described pH monitoring system also comprises pH secondary instrument, and the input of described pH secondary instrument and pH Electrode connection, its output are connected with a Desulfurization Control Systems, and described Desulfurization Control Systems is connected with control valve and valve signal.
In such scheme, for preventing pH electrode to be desulfurized slurries erosion failure, at the glass envelope place of pH electrode, one circular shield is installed, the height height 2mm of the aspect ratio pH electrode of described circular shield.
In such scheme, can flow meters be connected with between liquid collecting bag and flow cell, and be provided with a stop valve between the sewage draining exit and return duct 6 of liquid collecting bag 4.
In such scheme, for improving the cleaning performance of pH electrode, can be provided with a ultrasonic cleaner at flow cell place, described ultrasonic cleaner is connected with pH monitoring system.
In such scheme, described control valve can be any one in stop valve, ball valve or gate valve, can also be the by-pass valve control of other structures certainly.
In such scheme, described triple valve can be motor-driven valve, pneumatic operated valve or hand-operated valve.
Compared with prior art, the beneficial effects of the utility model are:
1, arm, triple valve, scavenge pipe, liquid collecting bag, the pH monitoring system of the utility model by arranging on desulfurization slurry circulating pump, and by controlling each valve be provided with, both the real-time detection to desulfurization slurry pH value can have been realized, automatic cleaning can also be carried out to pH electrode, there is pH and detect accurate, highly sensitive, easy to clean, the simple feature of structure;
2, at the glass envelope place of pH electrode, one circular shield is installed, effectively prevent pH electrode because of be desulfurized slurries wash away cause loose contact, damage, extend the service life of pH electrode.
Accompanying drawing explanation
The use scheme of installation of this coal desulfurization of Fig. 1 slurries pH checkout gear.
Number in the figure is: 1, arm; 1-1, control valve; 2, scavenge pipe; 2-1, valve; 3, triple valve; 4, liquid collecting bag; 5, flow cell; 6, return duct; 7, flowmeter; 8, pressure-reducing valve; 9, pH secondary instrument; P, desulfurization slurry circulating pump.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the utility model is further explained illustrates, but not in order to limit the utility model.
As shown in Figure 1, a kind of coal desulfurization slurries pH checkout gear, comprise arm 1, triple valve 3, liquid collecting bag 4, flow cell 5, pH monitoring system and return duct 6, the arrival end of described arm 1 accesses desulfurization slurry, specifically accesses from the outlet of desulfurization slurry circulating pump P, and the port of export of arm 1 is connected with the first entrance of triple valve 3 after a control valve 1-1.Second entrance of described triple valve 3 is connected with one is provided with the scavenge pipe 2 of valve 2-1, the outlet of triple valve 3 is connected with the lower end of liquid collecting bag 4 after a pressure-reducing valve 8, the top of described liquid collecting bag 4 is provided with serum outlet and is connected with the entrance of flow cell 5, the bottom of liquid collecting bag 4 is provided with sewage draining exit and is connected with return duct 6, and the outlet of described flow cell 5 is connected with the arrival end of return duct 6.The port of export of described return duct 6 specifically accesses the entrance of desulfurization slurry circulating pump P.Described pH monitoring system comprises pH electrode, and described pH electrode is located at flow cell 5 place, for gathering the pH signal of desulfurization slurry and this being fed back to pH monitoring system.
At flow cell 5, place is provided with a ultrasonic cleaner, and described ultrasonic cleaner is connected with pH monitoring system, is specifically located at the outside of flow cell 5 or the inside of flow cell 5, cleans pH electrode when ultrasonic cleaner uses.Described pH monitoring system also comprises pH secondary instrument 9, and the input of described pH secondary instrument 9 and pH Electrode connection, its output are connected with a Desulfurization Control Systems, and described Desulfurization Control Systems is connected with control valve 1-1 and valve 2-1 signal.By controlling the keying of the control valve 1-1 on the arm 1 and valve 2-1 on clean pipe 2 and realizing Long-distance Control by host computer and automatically clean pH electrode according to setting.
At the glass envelope place of pH electrode, one circular shield is installed, the height height 2mm of the aspect ratio pH electrode of described circular shield.
In such scheme, described triple valve 3 is specially motor-driven valve, pneumatic operated valve or hand-operated valve, certainly other can also can realize the valve that freely switches.Described control valve 1-1 is specially stop valve, can also be that other start, cut off soon, sensitive valve certainly.
Valve 2-1 on described clear water pipe 2 is specifically as follows stop valve.And for the ease of controlling, be connected with flow meters 7 between liquid collecting bag 4 and flow cell 5, and be provided with a stop valve between the sewage draining exit and return duct 6 of liquid collecting bag 4, this stop valve and flowmeter 7 co-controlling flow through the fluid flow of flow cell 5.For ease of controlling the discharge on return duct, return duct 6 is provided with a valve.
Each valve of the above-mentioned employing of the utility model can all be connected with Desulfurization Control Systems, realizes the object automatically controlled; Whether can certainly be hand control valve, namely no matter be connected with Desulfurization Control Systems, each valve be also undertaken starting or closing by manual operation.
The course of work of the present utility model is as follows:
When detecting the pH value of desulfurization slurry, control valve 1-1 on central controller controls arm 1 opens, valve 2-1 on clean pipe 2 closes, desulfurization slurry is made to flow through entrance branch 1 successively, triple valve 3, pressure-reducing valve 8 and liquid collecting bag 4, desulfurization slurry is in liquid collecting bag 4, due to reduced velocity flow, solid particle precipitation in desulfurization slurry, its supernatant flows out from the upper outlet of liquid collecting bag 4, after flowing through flowmeter 7, circulate pond 5, now be placed in the pH electrode sampling in flow cell 5, obtain pH signal, and by this signal feedback to pH secondary instrument 9, pH secondary instrument 9 transfers data to Desulfurization Control Systems, finally show obtained pH value at Desulfurization Control Systems by host computer.And the supernatant that the turbid liquid flowed out from the sewage draining exit of liquid collecting bag 4 bottom and flow cell 5 are discharged all enters the entrance of desulfurization slurry circulating pump P by return duct 6.
When needing cleaning, the Desulfurization Control Systems control valve 1-1 controlled on arm 1 closes, the valve 2-1 cleaned on pipe 2 opens, now clear water flows through valve 2-1, triple valve 3, pressure-reducing valve 8, liquid collecting bag 4 successively, clear water flows out from the outlet on liquid collecting bag 4 top, flow through flowmeter 7, circulate pond 5, the pH electrode be opposite in flow cell 5 carries out rinsing, simultaneously Desulfurization Control Systems control ultrasonic cleaner and start, electrode is cleaned.Rinse the liquid after pH electrode and after converging from the clear water that the sewage draining exit of liquid collecting bag 4 bottom flows out, flowed into the entrance of slurry circulating pump P by return duct 6.PH electrode obtains cleaning, is conducive to the stable of maintenance system, extends the service life of pH electrode.
These are only and embodiment of the present utility model is described; be not limited to the utility model; for a person skilled in the art; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a coal desulfurization slurries pH checkout gear, it is characterized in that: comprise arm (1), triple valve (3), liquid collecting bag (4), flow cell (5), pH monitoring system and return duct (6), the arrival end access desulfurization slurry of described arm (1), its port of export is connected with the first entrance of triple valve (3) after a control valve (1-1), second entrance of described triple valve (3) is connected with the scavenge pipe (2) that is provided with valve (2-1), the outlet of triple valve (3) is connected with the lower end of liquid collecting bag (4) after a pressure-reducing valve (8), the top of described liquid collecting bag (4) is provided with serum outlet, and be connected with the entrance of flow cell (5), the bottom of liquid collecting bag (4) is provided with sewage draining exit, and be connected with return duct (6), the outlet of described flow cell (5) is connected with the arrival end of return duct (6), described pH monitoring system comprises pH electrode, and described pH electrode is located in flow cell (5).
2. coal desulfurization slurries pH checkout gear according to claim 1, it is characterized in that: described pH monitoring system also comprises pH secondary instrument (9), input and pH Electrode connection, its output of described pH secondary instrument (9) are connected with a Desulfurization Control Systems, and described Desulfurization Control Systems is connected with control valve (1-1) and valve (2-1) signal.
3. coal desulfurization slurries pH checkout gear according to claim 1 and 2, is characterized in that: be provided with a circular shield at the glass envelope place of pH electrode, the height height 2mm of the aspect ratio pH electrode of described circular shield.
4. coal desulfurization slurries pH checkout gear according to claim 1, it is characterized in that: between liquid collecting bag (4) and flow cell (5), be connected with flow meters (7), and be provided with a stop valve between the sewage draining exit and return duct (6) of liquid collecting bag (4).
5. coal desulfurization slurries pH checkout gear according to claim 3, is characterized in that: be provided with a ultrasonic cleaner at flow cell (5) place, described ultrasonic cleaner is connected with Desulfurization Control Systems.
6. coal desulfurization slurries pH checkout gear according to claim 1, is characterized in that: described control valve (1-1) is stop valve, any one in gate valve or ball valve.
7. coal desulfurization slurries pH checkout gear according to claim 1, is characterized in that: described triple valve (3) is motor-driven valve, pneumatic operated valve or hand-operated valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520668242.8U CN205019929U (en) | 2015-08-31 | 2015-08-31 | Coal -fired desulfurizing slurry pH detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520668242.8U CN205019929U (en) | 2015-08-31 | 2015-08-31 | Coal -fired desulfurizing slurry pH detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205019929U true CN205019929U (en) | 2016-02-10 |
Family
ID=55252497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520668242.8U Active CN205019929U (en) | 2015-08-31 | 2015-08-31 | Coal -fired desulfurizing slurry pH detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205019929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056742A (en) * | 2015-08-31 | 2015-11-18 | 国投钦州发电有限公司 | Fuel coal desulfurization slurry pH detection device |
-
2015
- 2015-08-31 CN CN201520668242.8U patent/CN205019929U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056742A (en) * | 2015-08-31 | 2015-11-18 | 国投钦州发电有限公司 | Fuel coal desulfurization slurry pH detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204282493U (en) | Intelligence cuts dirty part flow arrangement | |
| CN102489144B (en) | Measure apparatus of flue gas desulphurization slurry pH value and density by using wet method | |
| CN203569667U (en) | Initial rainwater collection device | |
| CN101458224B (en) | On-line cleaner for environment protection desulphurization PH value detector | |
| CN205650049U (en) | Wet flue gas desulfurization pH value monitoring system | |
| CN205019929U (en) | Coal -fired desulfurizing slurry pH detection device | |
| CN105056742A (en) | Fuel coal desulfurization slurry pH detection device | |
| CN202683067U (en) | Continuous on-line measurement device for Potential of Hydrogen (pH) value and density of exhaust gas wet desulphurization parget slurry fluid | |
| CN106066382B (en) | PH value parameter measuring device | |
| CN209274591U (en) | A kind of pneumatic control water system for the vehicles | |
| CN208684575U (en) | A kind of sewage automatic-discharging control system | |
| CN206616616U (en) | The rain collector of automatic flow abandoning contaminative early-stage rainwater | |
| CN209446356U (en) | Water quality online analyzer pretreatment unit | |
| CN207866794U (en) | A kind of Desulfurization tower slurry pH value measuring device | |
| CN210347387U (en) | Device for synchronously measuring pH value and density of wet desulphurization slurry | |
| CN208493624U (en) | A kind of wet precipitator | |
| CN110624702B (en) | Intelligent centrifugal oil purifier | |
| CN2585228Y (en) | pH value on-line checking device | |
| CN204456411U (en) | A kind of sub-prime component water conservancy diversion pond for high pollution rainwater and dry flow sewage | |
| CN203232098U (en) | On-line conductivity detection device | |
| CN210621872U (en) | Drainage control system for ensuring standard drainage of main drainage outlet | |
| CN208672383U (en) | A kind of automatic rainfall runoff sampling apparatus of overall process | |
| CN207318156U (en) | All the period of time sewage drawing mechanism | |
| CN112246077A (en) | Runner pool type desulfurization slurry PH value measuring device | |
| CN204649667U (en) | The measurement mechanism of slurry pH value in absorption tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |