CN212340913U - Density and pH value measuring device for bypass pipe of slurry circulating pump - Google Patents
Density and pH value measuring device for bypass pipe of slurry circulating pump Download PDFInfo
- Publication number
- CN212340913U CN212340913U CN202021565914.XU CN202021565914U CN212340913U CN 212340913 U CN212340913 U CN 212340913U CN 202021565914 U CN202021565914 U CN 202021565914U CN 212340913 U CN212340913 U CN 212340913U
- Authority
- CN
- China
- Prior art keywords
- slurry
- circulating pump
- densimeter
- pipe
- bypass pipe
- 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
- 239000002002 slurry Substances 0.000 title claims abstract description 163
- 238000002955 isolation Methods 0.000 claims abstract description 64
- 238000005070 sampling Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000012423 maintenance Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 16
- 238000006477 desulfuration reaction Methods 0.000 claims description 9
- 230000023556 desulfurization Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000001739 density measurement Methods 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 238000001139 pH measurement Methods 0.000 claims description 7
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 3
- 229910052602 gypsum Inorganic materials 0.000 abstract description 16
- 239000010440 gypsum Substances 0.000 abstract description 16
- 238000010521 absorption reaction Methods 0.000 abstract description 9
- 238000005406 washing Methods 0.000 description 3
- 208000005156 Dehydration Diseases 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a device for measuring the density and the pH value of a slurry circulating pump bypass pipe, which comprises a slurry sampling pipe, a slurry circulating pump bypass pipe, a densimeter, a slurry return pipe and a slurry circulating pump; the inlet side of each slurry circulating pump is provided with a slurry circulating pump inlet valve, the outlet pipeline position of each slurry circulating pump is provided with a slurry sampling pipe, each slurry sampling pipe is provided with a slurry sampling pipe isolation valve, and each slurry sampling pipe is converged and connected to the inlet of the slurry circulating pump bypass pipe; and a pH meter with an isolating valve and a densimeter front maintenance isolating valve are sequentially arranged on the slurry circulating pump bypass pipe according to the flow direction. The utility model has the advantages that: the utility model discloses utilize the differential pressure of thick liquid circulating pump entry and export to make thick liquid sampling tube, thick liquid circulating pump bypass pipe, thick liquid back flow realize the circulating line, confirm density and the pH value of gypsum thick liquid in the absorption tower through the densimeter of installing on this circulating line and the pH meter of taking the isolating valve, simple structure is reasonable, can reduce the operation of gypsum discharge pump.
Description
Technical Field
The utility model relates to a wet flue gas desulfurization purification technical field, concretely relates to slurry circulating pump bypass pipe density and pH value measuring device.
Background
In a wet desulphurization system, the slurry density and the pH value are important parameters for controlling the quality of slurry in an absorption tower, and are respectively measured by a densimeter and a pH meter, wherein the slurry density is used for controlling the discharge of gypsum slurry, and the pH value is used for controlling the desulphurization efficiency. Currently, slurry density and pH measurements are generally divided into two categories: one is that the gypsum slurry discharge pump runs continuously, install densimeter and pH meter on the outlet pipeline, and lead a road gypsum slurry to flow back to the absorption tower, this measuring method has higher requirements for the performance of the gypsum slurry pump, and increase the running cost of the pump; the other method is to arrange a slurry measuring pump, lead out a path of slurry from the absorption tower and reflux the slurry to the absorption tower, and install a densimeter and a pH meter on an outlet pipeline of the pump, wherein the measuring method needs to increase the running cost of the slurry measuring pump and the pump.
In view of the above, it is desirable to provide a device for measuring the density and pH of the bypass pipe of the slurry circulating pump to solve the problems of measuring the density and pH of the wet desulfurization slurry.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough among the prior art, provide a thick liquid circulating pump bypass pipe density and pH value measuring device.
The device for measuring the density and the pH value of the slurry circulating pump bypass pipe comprises a slurry sampling pipe, a slurry circulating pump bypass pipe, a pH meter with an isolation valve, a densimeter, a slurry return pipe and a slurry circulating pump; the inlet side of each slurry circulating pump is provided with a slurry circulating pump inlet valve, the outlet pipeline position of each slurry circulating pump is provided with a slurry sampling pipe, each slurry sampling pipe is provided with a slurry sampling pipe isolation valve, and each slurry sampling pipe is converged and connected to the inlet of the slurry circulating pump bypass pipe; a pH meter with an isolation valve, a densimeter front maintenance isolation valve, a densimeter and a densimeter rear maintenance isolation valve are sequentially arranged on the slurry circulating pump bypass pipe in the flow direction; a densimeter bypass pipe is connected in parallel between the inlet of the front overhaul isolation valve of the densimeter and the outlet of the rear overhaul isolation valve of the densimeter, two ends of the densimeter bypass pipe are respectively connected with the slurry circulating pump bypass pipe, and a densimeter bypass isolation valve is arranged on the densimeter bypass pipe; the outlet of the slurry circulating pump bypass pipe is connected to the inlet of each slurry circulating pump through a slurry return pipe, and a slurry return pipe isolation valve is arranged on each slurry return pipe; the slurry circulating pump bypass pipe is provided with a process water flushing valve and a slurry circulating pump bypass pipe drainage valve in a matching way; and signals of the pH meter and the densimeter with the isolating valve are accessed into a desulfurization control system.
Preferably, the method comprises the following steps: the inlet and the outlet of the densimeter are respectively provided with a front overhaul isolation valve of the densimeter and a back overhaul isolation valve of the densimeter.
Preferably, the method comprises the following steps: the pH meter with the isolation valve adopts an online plug-in pH meter.
Preferably, the method comprises the following steps: and a diaphragm pressure gauge is arranged on an outlet pipeline of the overhaul isolation valve behind the densimeter.
Preferably, the method comprises the following steps: the inlet of the slurry circulating pump bypass pipe is provided with a slurry circulating pump bypass pipe process water washing valve, and the outlet of the slurry circulating pump bypass pipe is matched with the pipeline of the maintenance isolation door to be provided with a drainage pipeline and a slurry circulating pump bypass pipe drainage valve.
Preferably, the method comprises the following steps: the slurry return pipe is connected between the inlet valve of the slurry circulating pump and the slurry circulating pump.
Preferably, the method comprises the following steps: the pH meter and the densimeter with the isolating valve are connected with various valves through carbon steel rubber lining short pipes or fiber reinforced composite short pipes with flanges.
The utility model has the advantages that: the utility model discloses utilize the differential pressure of thick liquid circulating pump entry and export to make thick liquid sampling tube, thick liquid circulating pump bypass pipe, thick liquid back flow realize the circulating line, confirm density and the pH value of gypsum thick liquid in the absorption tower through the densimeter of installing on this circulating line and the pH meter of taking the isolating valve, simple structure is reasonable, can reduce the operation of gypsum discharge pump, need not to set up solitary measuring pump to reduce maintenance work load by a wide margin, reduce running cost.
Drawings
FIG. 1 is a schematic diagram of a device for measuring density and pH value of a bypass pipe of a slurry circulating pump.
Description of reference numerals: the device comprises a slurry sampling pipe 1, a slurry sampling pipe isolation valve 2, a slurry circulating pump bypass pipe process water flushing valve 3, a slurry circulating pump bypass pipe 4, a pH meter 5 with an isolation valve, a densimeter front overhaul isolation valve 6, a densimeter 7, a densimeter rear overhaul isolation valve 8, a densimeter bypass pipe 9, a densimeter bypass isolation valve 10, a diaphragm pressure gauge 11, a slurry circulating pump bypass pipe drainage valve 12, a slurry return pipe isolation valve 13, a slurry return pipe 14, a slurry circulating pump inlet valve 15, a slurry circulating pump 16 and a slurry circulating pump outlet pipeline 17.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
In view of the current measurement mode, the device for measuring the density and the pH value of the bypass pipe of the slurry circulating pump of the wet desulphurization system is arranged without increasing equipment and power consumption. The device for measuring the density and the pH value of the slurry circulating pump bypass pipe comprises a slurry sampling pipe 1, a slurry circulating pump bypass pipe 4, a pH meter 5 with an isolation valve, a densimeter 7, a slurry return pipe 14 and a slurry circulating pump 16; the inlet side of each slurry circulating pump 16 is provided with a slurry circulating pump inlet valve 15, a slurry sampling pipe 1 is arranged at the outlet pipeline position 17 of each slurry circulating pump, a slurry sampling pipe isolation valve 2 is arranged on each slurry sampling pipe 1, and each slurry sampling pipe 1 is converged and connected to the inlet of a slurry circulating pump bypass pipe 4; a pH meter 5 with an isolation valve, a densimeter front overhaul isolation valve 6, a densimeter 7 and a densimeter rear overhaul isolation valve 8 are sequentially arranged on the slurry circulating pump bypass pipe 4 in the flow direction; a densimeter bypass pipe 9 is connected in parallel between the inlet of the densimeter front overhaul isolation valve 6 and the outlet of the densimeter rear overhaul isolation valve 8, two ends of the densimeter bypass pipe 9 are respectively connected with the slurry circulating pump bypass pipe 4, and a densimeter bypass isolation valve 10 is arranged on the densimeter bypass pipe 9; the outlet of the slurry circulating pump bypass pipe 4 is respectively connected to the inlet of each slurry circulating pump 16 through a slurry return pipe 14, and a slurry return pipe isolation valve 13 is arranged on the slurry return pipe 14; signals of a pH meter 5 and a densimeter 7 with isolation valves are accessed into a desulfurization control system to participate in the control of the discharge of gypsum slurry and the desulfurization efficiency; the desulfurization system is provided with a plurality of slurry circulating pumps 16, and when the operation of the slurry circulating pumps is switched, the continuity of slurry measurement can be ensured.
The slurry sampling pipe 1, the slurry sampling pipe isolation valve 2, the slurry circulating pump bypass pipe 4, the slurry return pipe isolation valve 13 and the slurry return pipe 14 realize a circulating pipeline by utilizing the differential pressure of the inlet and the outlet of the slurry circulating pump 16, and the pH value and the density of the gypsum slurry in the absorption tower are determined by a densimeter 7 and a pH meter 5 with the isolation valve which are arranged on the circulating pipeline.
The access and export of densimeter 7 set up maintenance isolation valve 6 before the densimeter and overhaul isolation valve 8 behind the densimeter respectively to set up densimeter by-pass pipe 9 and densimeter bypass isolation valve 10 for densimeter 7, when densimeter 7 trouble, open densimeter bypass isolation valve 10, overhaul isolation valve 6 before closing the densimeter and overhaul isolation valve 8 behind the densimeter, can guarantee the continuous monitoring of the pH meter 5 of taking the isolation valve.
The pH meter 5 with the isolation valve adopts an online plug-in pH meter.
A slurry sampling pipe isolation valve 2 and a slurry return pipe isolation valve 13 are respectively arranged on the slurry sampling pipe 1 and the slurry return pipe 14, and can be used for switching of a circulating pump sampling pipeline, instrument maintenance isolation and slurry circulating pump bypass pipe 4 flushing isolation.
And a diaphragm pressure gauge 11 is arranged on an outlet pipeline (an outlet side of a densimeter bypass pipe 9) of the maintenance isolation valve 8 behind the densimeter and is used for a patrol inspector to judge whether the slurry circulating pump bypass pipe 4 is blocked or not.
The slurry circulating pump bypass pipe 4 is provided with a slurry circulating pump bypass pipe process water washing valve 3 and a slurry circulating pump bypass pipe drainage valve 12 for washing and drainage of the slurry circulating pump bypass pipe 4. A process water flushing valve 3 of the slurry circulating pump bypass pipe is arranged at an inlet of a slurry circulating pump bypass pipe 4 (on a collecting pipe at an outlet of a slurry sampling pipe isolation valve 2), a drainage pipeline is arranged on a pipeline (at a lower position) of an inspection isolation door at an outlet of the slurry circulating pump bypass pipe 4 in a matched manner, a slurry circulating pump bypass pipe drainage valve 12 is arranged, and the slurry circulating pump bypass pipe flushing water is drained to a nearby slurry pipe ditch through the slurry circulating pump bypass pipe drainage valve 12.
The slurry return line 14 is connected between the slurry circulation pump inlet valve 15 and the slurry circulation pump 16.
The pH meter, the densimeter, various valves and other parts are connected through a carbon steel rubber lining short pipe with a flange or a fiber reinforced composite material short pipe.
The device for measuring the density and the pH value of the bypass pipe of the slurry circulating pump is adopted, the start and stop of the gypsum discharge pump can be controlled according to the measured slurry density, and when the density of the gypsum slurry in the desulfurization absorption tower reaches a set value, the gypsum discharge pump is started to convey the gypsum slurry to a dehydration system for dehydration treatment; when the density of the gypsum slurry in the desulfurization absorption tower does not reach a set value, the gypsum discharge pump is stopped, so that the power consumption for operation is saved, and the energy-saving effect is achieved.
Claims (7)
1. The utility model provides a thick liquid circulating pump bypass pipe density and pH value measuring device which characterized in that: comprises a slurry sampling pipe (1), a slurry circulating pump bypass pipe (4), a pH meter (5) with an isolating valve, a densimeter (7), a slurry return pipe (14) and a slurry circulating pump (16); a slurry circulating pump inlet valve (15) is arranged on the inlet side of each slurry circulating pump (16), a slurry sampling pipe (1) is arranged at the outlet pipeline position (17) of each slurry circulating pump, a slurry sampling pipe isolation valve (2) is arranged on each slurry sampling pipe (1), and each slurry sampling pipe (1) is converged and connected to the inlet of a slurry circulating pump bypass pipe (4); a pH meter (5) with an isolation valve, a densimeter front maintenance isolation valve (6), a densimeter (7) and a densimeter rear maintenance isolation valve (8) are sequentially arranged on the slurry circulating pump bypass pipe (4) according to the flow direction; a densimeter bypass pipe (9) is connected in parallel between the inlet of the densimeter front overhaul isolation valve (6) and the outlet of the densimeter rear overhaul isolation valve (8), two ends of the densimeter bypass pipe (9) are respectively connected with the slurry circulating pump bypass pipe (4), and a densimeter bypass isolation valve (10) is arranged on the densimeter bypass pipe (9); the outlet of the slurry circulating pump bypass pipe (4) is respectively connected to the inlet of each slurry circulating pump (16) through a slurry return pipe (14), and a slurry return pipe isolation valve (13) is arranged on the slurry return pipe (14); a process water flushing valve (3) and a slurry circulating pump bypass pipe drainage valve (12) are arranged on the slurry circulating pump bypass pipe (4) in a matching way; and a pH meter (5) with an isolation valve and a densimeter (7) with signals are connected into a desulfurization control system.
2. The slurry circulation pump bypass line density and pH measurement device of claim 1, wherein: the inlet and the outlet of the densimeter (7) are respectively provided with a densimeter front overhaul isolation valve (6) and a densimeter rear overhaul isolation valve (8).
3. The slurry circulation pump bypass line density and pH measurement device of claim 1, wherein: the pH meter (5) with the isolation valve adopts an online plug-in pH meter.
4. The slurry circulation pump bypass line density and pH measurement device of claim 1, wherein: and a diaphragm pressure gauge (11) is arranged on an outlet pipeline of the overhaul isolation valve (8) behind the densimeter.
5. The slurry circulation pump bypass line density and pH measurement device of claim 1, wherein: the inlet of the slurry circulating pump bypass pipe (4) is provided with a slurry circulating pump bypass pipe process water flushing valve (3), and the outlet of the slurry circulating pump bypass pipe (4) is matched with the pipeline of the maintenance isolation door to be provided with a drainage pipeline and a slurry circulating pump bypass pipe drainage valve (12).
6. The slurry circulation pump bypass line density and pH measurement device of claim 1, wherein: the slurry return pipe (14) is connected between the slurry circulating pump inlet valve (15) and the slurry circulating pump (16).
7. The slurry circulation pump bypass line density and pH measurement device of claim 1, wherein: the pH meter (5) and the densimeter (7) with the isolation valve are connected with various valves through carbon steel rubber lining short pipes or fiber reinforced composite short pipes with flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021565914.XU CN212340913U (en) | 2020-07-31 | 2020-07-31 | Density and pH value measuring device for bypass pipe of slurry circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021565914.XU CN212340913U (en) | 2020-07-31 | 2020-07-31 | Density and pH value measuring device for bypass pipe of slurry circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212340913U true CN212340913U (en) | 2021-01-12 |
Family
ID=74082330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021565914.XU Active CN212340913U (en) | 2020-07-31 | 2020-07-31 | Density and pH value measuring device for bypass pipe of slurry circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212340913U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829919A (en) * | 2020-07-31 | 2020-10-27 | 浙江天地环保科技股份有限公司 | Slurry circulating pump bypass pipe density and pH value measuring device |
-
2020
- 2020-07-31 CN CN202021565914.XU patent/CN212340913U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829919A (en) * | 2020-07-31 | 2020-10-27 | 浙江天地环保科技股份有限公司 | Slurry circulating pump bypass pipe density and pH value measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102500221A (en) | Device for measuring density and PH value of desulfurized gypsum slurry | |
| CN212340913U (en) | Density and pH value measuring device for bypass pipe of slurry circulating pump | |
| CN111829919A (en) | Slurry circulating pump bypass pipe density and pH value measuring device | |
| CN202683067U (en) | Continuous on-line measurement device for Potential of Hydrogen (pH) value and density of exhaust gas wet desulphurization parget slurry fluid | |
| CN209538111U (en) | Water supply and drainage device for hydraulic engineering | |
| CN208493732U (en) | A kind of desulfuration absorbing tower liquid-level pressure transmitter back purge system | |
| CN210375542U (en) | Filter leak detection device | |
| CN205991989U (en) | A kind of lime stone slurry pH value measures sampler | |
| CN210347387U (en) | Device for synchronously measuring pH value and density of wet desulphurization slurry | |
| CN112870822B (en) | Heat supply network circulating water bypass flow treatment system and control method | |
| CN205296289U (en) | No negative pressure water supply equipment of box intelligence of automatically cleaning | |
| CN211624533U (en) | T-shaped energy dissipater and drainage system of rear bypass pipe of small hydropower station dam | |
| CN203591640U (en) | Filtering device capable of cleaning online at inlet of desulfurizing slurry circulating pump | |
| CN202351208U (en) | Slurry potential of hydrogen (PH) value measuring auxiliary device for flue gas desulfurization island | |
| CN214840139U (en) | Condensed water drainage device | |
| CN201954055U (en) | Asymmetric water sealing check valve | |
| CN109200763B (en) | Circulating slurry detection system of flue gas desulfurization system | |
| CN205975942U (en) | Prefabricated pump station no. 1 drags three frequency conversion control systems | |
| JP3245528U (en) | Pipe system that prevents water from accumulating in exhaust gas measurement pipes | |
| CN214131054U (en) | Device for measuring pH and density of slurry in absorption tower | |
| CN214408843U (en) | Novel absorption tower pH value measuring system | |
| CN202421007U (en) | Desulfurization gypsum slurry density and pH value measuring device | |
| CN213041680U (en) | Simple system for improving online measurement accuracy of density of desulfurized gypsum slurry | |
| CN219842369U (en) | Measurement device for desulfurizing tower thick liquid pH value | |
| CN210767004U (en) | Full frequency conversion case pump integration water supply equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 310012 99 Huaxing Road, Xihu District, Hangzhou, Zhejiang (Hangzhou Neusoft business building) Patentee after: Zhejiang Zheneng Technology Environmental Protection Group Co.,Ltd. Country or region after: China Address before: 310012 99 Huaxing Road, Xihu District, Hangzhou, Zhejiang (Hangzhou Neusoft business building) Patentee before: Zhejiang Tiandi Environmental Protection Technology Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |