CN212674825U - Continuous measuring device for pH value of high-solid-concentration slurry - Google Patents
Continuous measuring device for pH value of high-solid-concentration slurry Download PDFInfo
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- CN212674825U CN212674825U CN202021159587.8U CN202021159587U CN212674825U CN 212674825 U CN212674825 U CN 212674825U CN 202021159587 U CN202021159587 U CN 202021159587U CN 212674825 U CN212674825 U CN 212674825U
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- Prior art keywords
- valve
- pipe
- flange
- flushing
- measuring
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- Expired - Fee Related
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- 239000002002 slurry Substances 0.000 title claims description 39
- 238000011010 flushing procedure Methods 0.000 claims abstract description 29
- 239000007787 solid Substances 0.000 claims abstract description 22
- 239000000523 sample Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 8
- 210000004911 serous fluid Anatomy 0.000 claims abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 38
- 238000005259 measurement Methods 0.000 abstract description 25
- 238000006477 desulfuration reaction Methods 0.000 abstract description 13
- 230000023556 desulfurization Effects 0.000 abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001139 pH measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Abstract
The utility model relates to a pH value continuous measurement device of high solid concentration thick liquid contains thick liquid storage container, main valve, measuring tube, blind flange, pH meter, fluid-discharge tube, wash tub pipe, its characterized in that: the main valve can be one of a flange butterfly valve, a flange ball valve, a thread ball valve and the like; the measuring pipeline comprises a connecting pipe, an elbow, a reducer and a flange which are connected in sequence; the flushing water pipe comprises a flushing valve and a flushing branch pipe and is connected to the side surface of the measuring pipeline; the blind flange is provided with a bushing and a drain pipe, and the drain pipe is provided with a drain valve; the probe of the pH meter is arranged on the bushing core, and the probe is completely immersed in the serous fluid in the large head and the small head. The utility model discloses can be continuous accurate measurement, read thick liquid pH value concentration in the wet flue gas desulfurization process system, provide important guarantee for the high-efficient steady operation of desulfurization system.
Description
Technical Field
The utility model relates to a flue gas desulfurization system technical field, in particular to pH value continuous measurement device of high solid concentration thick liquid.
Background
At present, the limestone-gypsum wet flue gas desulfurization technology is widely popularized and applied in China due to the characteristics of low investment, low operation cost, high desulfurization efficiency and the like. The pH value of the slurry is an important factor for maintaining the efficient and stable operation of the limestone-gypsum wet flue gas desulfurization device. An excessively high pH value not only affects the oxidation rate of HSO 3-but also increases the amount of absorbent remaining in the slurry, affecting the quality of gypsum; too low a pH will reduce the desulfurization efficiency and therefore a continuous and stable measurement of the pH of the slurry is required during system operation.
In the traditional pH value measuring mode of the wet flue gas desulfurization process, a pH meter probe is directly arranged on an outlet pipeline of a slurry pump. Because the thick liquid velocity of flow in the exit pipeline of thick liquid pump is too fast, lead to pH meter probe to be washed and worn by the thick liquid, reduce pH meter life. Chinese patent (application No. 201820740421.1) mentions a pH measuring device and a desulfurization system, which solve the problem that slurry directly washes a pH meter probe through a guide pipe, but the pH measuring device also has the problems that online replacement cannot be carried out, washing water is not arranged at the position of the pH meter probe, and the like. Chinese patent (application number 201710322826.1) mentions a flue gas desulfurization pH value measuring device, and this patent improves to desulfurization thick liquid pH value measuring method, has prolonged measuring device's life-span, and the device operation is reliable and stable, and it is convenient to maintain, has increased the sparge water device, but its preparation and installation are comparatively troublesome, and occupation space and input are great.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's is not enough, provides a pH value continuous measurement device of high solid concentration thick liquid, and the measurement that can be accurate in succession and the thick liquid pH value in reading wet flue gas desulfurization process systems provide important guarantee for the high-efficient steady operation of desulfurization system.
The utility model relates to a pH value continuous measuring device of high solid concentration slurry, which comprises a slurry storage container, a main valve, a measuring pipeline, a blind flange, a pH meter, a drain pipe and a flushing pipe; the main valve can be one of a flange butterfly valve, a flange ball valve, a thread ball valve and the like; the measuring pipeline comprises a connecting pipe, an elbow, a reducer and a flange which are connected in sequence; the flushing water pipe comprises a flushing valve and a flushing branch pipe and is connected to the side surface of the measuring pipeline; the blind flange is provided with a bushing and a drain pipe, and the drain pipe is provided with a drain valve; the probe of the pH meter is arranged on the bushing core, and the probe is completely immersed in the serous fluid in the large head and the small head.
The utility model relates to a pH value continuous measurement device of high solid concentration thick liquid, measuring device and thick liquid storage container hookup location be in the thick liquid storage container below the conventional liquid level 500mm at least, its takeover diameter scope can be DN25~ DN100, corrosion-resistant materials such as its material optional stainless steel, FRP pipe or with the same material of thick liquid storage container.
The utility model relates to a PH value continuous measurement device of high solid concentration thick liquid, main valve pipe diameter can select to use the flange butterfly valve under the condition that is greater than DN50, be less than the flange ball valve of selecting to use under the condition of DN50, can select to use the screw thread ball valve under the condition of less than or equal to DN25, its size is unanimous with the takeover pipe diameter.
The utility model relates to a pH value continuous measurement device of high solid concentration thick liquid, the measuring tube on set up wash pipe, wash the branch pipe diameter and be DN15~ DN25, wash and set up the washing valve door on the branch pipe, the optional screw thread ball valve of washing valve door etc. wash materials such as the optional rubber of branch pipe material, PPR.
The utility model relates to a pH value continuous measurement device of high solid concentration thick liquid, elbow angle theta be 10 ~ 90.
The utility model relates to a pH value continuous measurement device of high solid concentration thick liquid, its material of reducer the same with the takeover material, terminal mounting flange.
The utility model relates to a pH value continuous measurement device of high solid concentration thick liquid, its big or small material of blind flange unanimous with the overhead flange of big or small, relevant position trompil is gone up to the blind flange, installs respectively and mends core and fluid-discharge tube, installs the flowing back valve door on the fluid-discharge tube, optional screw thread ball valve of fluid-discharge tube etc..
The continuous pH value measuring device for the slurry with high solid concentration has the following working process.
(1) Opening a main valve connected with a slurry storage container to enable slurry to be measured to enter a measuring pipeline, opening a liquid discharge valve on a liquid discharge pipe to enable the slurry to be measured to be discharged after the slurry to be measured temporarily stays in the measuring pipeline, keeping the slurry to be measured in the measuring pipeline to continuously flow, immersing a probe of a pH meter in the slurry to be measured, and continuously measuring the pH value of the slurry.
(2) The pH value measurement or the pH value replacement and maintenance timing are stopped, firstly, a flushing valve on a flushing water pipe is opened, process water enters a measurement pipeline, the measurement pipeline is flushed, after the flushing time lasts for 5-10 minutes, a main valve in front of the measurement pipeline is closed, the valve opening state on the flushing water pipe is kept, the rear part of the measurement pipeline and a pH meter probe are flushed, after the flushing time lasts for 2-3 minutes, the flushing valve on the flushing water pipe and a liquid discharge valve on a liquid discharge pipe are closed simultaneously, the process water is reserved in the measurement pipeline, and the pH meter probe is prevented from being exposed in the air.
The beneficial effects of the utility model are as follows.
(1) The utility model relates to a pH value continuous measurement device of high solid concentration thick liquid can effectively reduce the thick liquid that awaits measuring and erode the wearing and tearing effect to pH meter probe, improves the life of pH meter, reduces pH value measuring device's later maintenance expense.
(2) The utility model relates to a pH value continuous measurement device of high solid concentration thick liquid can realize continuous, automatic, the accurate measurement of pH value, because of the thick liquid that awaits measuring in it is continuous mobile, measures the pH value state in numerical value can correctly reflect the system, reduces measuring error.
(3) The utility model relates to a pH value continuous measurement device of high solid concentration thick liquid, because of set up branch road wash pipe on the measuring tube, can open the wash pipe way when it pauses and take into account to measuring tube and pH and wash in time, can prevent that the measuring tube from blockking up to can protect the pH meter probe, prevent its and air contact, reduce because of the impaired measuring error who produces of pH probe, prolong the life of pH meter.
(4) The utility model relates to a pH value continuous measurement device of high solid concentration thick liquid, because of being provided with the valve before the measurement pipeline, and the pH meter is installed on mending the core, the maintenance, the change and the demarcation of the pH meter of being convenient for.
(5) The utility model relates to a pH value continuous measurement device of high solid concentration thick liquid has simple structure, and the installation is maintained conveniently, characteristics that occupation space is little.
Drawings
Fig. 1 is a schematic structural diagram of a pH value continuous measurement device for high solid concentration slurry according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a flushing branch pipe of the pH value continuous measuring device for high solid concentration slurry of the present invention.
Fig. 3 is a schematic structural diagram of the pH value continuous measuring device for high solid concentration slurry of the present invention for measuring the inclination angle of the pipeline.
In the figure: 1. a slurry storage container; 2. a main valve; 3. taking over a pipe; 4. bending the pipe; 5. a reducer; 6. a flange; 7. a blind flange; 8. a drain valve; 9. a liquid discharge pipe; 10. core supplementing; 11. a pH meter; 12. flushing the valve; 13. and flushing the branch pipe.
Detailed Description
The invention is further explained in detail below with reference to the drawings and the specific embodiments.
Example 1: the main valve 2 is mounted on the slurry storage container 1 through a pipe and a flange, and the height of the main valve is 1500mm below the slurry level in the slurry storage container. The back of the main valve 2 is connected with a measuring pipeline which comprises a connecting pipe 3, an elbow 4 and a reducer 5. The connecting pipe 3 is provided with a flushing branch pipe 13, and the flushing branch pipe 13 is provided with a flushing valve 12. The tail end of the connecting pipe 3 is connected with an elbow 4, the tail end of the elbow 4 is connected with a reducer 5, and the tail end of the reducer 5 is connected with a flange 6. The blind flange 7 is connected with the flange 6 by bolts. The blind flange 7 is provided with holes at corresponding positions and is respectively provided with a bushing 10 and a drain pipe 10. A drain valve 8 is arranged on the drain pipe 10, and the tail end of the drain pipe 9 is communicated with a trench or other places where the slurry can be discharged. The pH meter 11 is installed in the bushing 10 on the blind flange 7 through threaded connection, and the probe of the pH meter is completely immersed in the slurry to be measured in the reducer 5.
In embodiment 1, the main valve 2, the connecting pipe 3 and the elbow 4 have the pipe diameter of DN50, the elbow 4 is a 45-degree elbow, the reducer 5 is DN50/DN80, the flange 6 and the blind flange 7 are DN80, the liquid discharge valve 8, the liquid discharge pipe 9, the flushing valve 12 and the flushing branch pipe 13 are DN20, the refill 10 is G3/4, the materials except the liquid discharge pipe 9 and the flushing branch pipe 13 are rubber hoses, and the rest are stainless steel.
When the pH value of the slurry in the slurry storage container needs to be measured, the main valve 2 is opened, the slurry continuously enters the pH value measuring device, a part of slurry to be measured can be stored in the large and small heads 5, when the liquid level of the slurry in the large and small heads reaches the interface of the liquid discharge pipe 9 on the blind flange 7, the slurry can be naturally discharged from the liquid discharge pipe 9, the probe of the pH meter 11 is completely immersed into the slurry in the large and small heads 5, the pH value of the slurry can be continuously monitored, and the change condition of the pH value of the slurry can be timely obtained.
Although the present invention has been described with reference to the preferred embodiments, the embodiments and drawings are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, but the scope of the present invention is also within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the definition of the claims of the present application.
Claims (3)
1. A pH value continuous measuring device of high solid concentration slurry comprises a slurry storage container, a main valve, a measuring pipeline, a blind flange, a pH meter, a drain pipe and a flushing water pipe; the method is characterized in that: the main valve can be one of a flange butterfly valve, a flange ball valve and a thread ball valve; the measuring pipeline comprises a connecting pipe, an elbow, a reducer and a flange which are connected in sequence; the flushing water pipe comprises a flushing valve and a flushing branch pipe and is connected to the side surface of the measuring pipeline; the blind flange is provided with a bushing and a drain pipe, and the drain pipe is provided with a drain valve; the probe of the pH meter is arranged on the bushing core, and the probe is completely immersed in the serous fluid in the large head and the small head.
2. The apparatus for continuously measuring pH of a high solids concentration slurry as claimed in claim 1, wherein: the connecting pipe between the flange and the elbow is provided with a flushing branch pipe, the branch pipe is provided with a flushing valve, and the branch pipe can be made of rubber, stainless steel or PPR.
3. The apparatus for continuously measuring pH of a high solids concentration slurry as claimed in claim 1, wherein: the large and small heads connected with the gateway elbow are in an inclined state, and the angle theta is 10-90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021159587.8U CN212674825U (en) | 2020-06-22 | 2020-06-22 | Continuous measuring device for pH value of high-solid-concentration slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021159587.8U CN212674825U (en) | 2020-06-22 | 2020-06-22 | Continuous measuring device for pH value of high-solid-concentration slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212674825U true CN212674825U (en) | 2021-03-09 |
Family
ID=74817929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021159587.8U Expired - Fee Related CN212674825U (en) | 2020-06-22 | 2020-06-22 | Continuous measuring device for pH value of high-solid-concentration slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212674825U (en) |
-
2020
- 2020-06-22 CN CN202021159587.8U patent/CN212674825U/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: 20210309 |
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| CF01 | Termination of patent right due to non-payment of annual fee |