CN202683066U - PH value and density measuring device for slurry in desulfurizing absorption tower - Google Patents
PH value and density measuring device for slurry in desulfurizing absorption tower Download PDFInfo
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- CN202683066U CN202683066U CN 201220383568 CN201220383568U CN202683066U CN 202683066 U CN202683066 U CN 202683066U CN 201220383568 CN201220383568 CN 201220383568 CN 201220383568 U CN201220383568 U CN 201220383568U CN 202683066 U CN202683066 U CN 202683066U
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Abstract
The utility model relates to a pH value and density measuring device for slurry in a desulfurizing absorption tower. The pH value and density measuring device comprises an absorption tower (1), pH meters (5) and a density meter (6), wherein an opening is formed in the tower wall of the bottom of the absorption tower (1) so as to guide a slurry pipe (2) which is communicated to a gutter (10); the two pH meters (5) and the density meter (6) are arranged on the slurry pipe (2) in sequence; and the horizontal position of the density meter (6) is higher than the horizontal positions of the pH meters (5). The pH value and density measuring device for slurry in the desulfurizing absorption tower, provided by the utility model, saves a plaster discharge system return pipeline and uses a simple and reliable pipeline system; and a plaster discharge pump is started or stopped according to the absorption tower density and does not need to run continuously, so that energy consumption is reduced, the abrasion of a pump, a pipeline system and a valve is reduced as well, and the service life of the pump, the pipeline system and the valve is prolonged.
Description
Technical field
The utility model relates to the environment protection desulphurization field, relates in particular to pH value of slurry of desulfuration absorption tower, density measuring equipment.
Background technology
Coal-fired power plant's wet process of FGD is the highest desulfur technology of present desulfurization degree, is most widely used.This technology with lime stone slurry (lime stone adds water mill system and forms) as desulfurizing agent, in absorption tower (chemical reaction equipment) to contained sulfur dioxide (the molecular formula SO of flue gas
2) spray washing, make the SO in the flue gas
2Reaction generates CaSO
4, the key point of this reaction is Ca
2+Formation, and Ca
2+Be formed at H
+Concentration relevant, the pH value optimum range of slurries is 5.8-6.2, is beneficial to lime stone slurry most and is decomposed to form Ca
2+So, control the pH value of slurries well, can realize that desulfurization for automatically control of slurry, can ensure that the efficient of desulfurization is in optimum state.
Yet, traditional desulfurizer absorbing tower pH meter, densitometer all are that design is discharged on system's reflux line at gypsum, velocity of medium, flow that pH meter, densitometric measurement all need to control process carry out, need to adjust by valve, thereby so that cause the valve rate of wear because of valve throttle, pipeline, the frequent wear damage of densitometer, at valve, elbow, the frequent spillage of threeway place, the frequent leakage pollutes; Often turning down valve opening carries out throttling in order to reduce the densitometer wearing and tearing, often causes reflux line to stop up.And pH meter, densitometer be installed in gypsum and discharge on system's reflux line, monitors absorption tower density and pH value because guaranteeing continuous operation of gypsum discharge system, so that system arranges complexity; The gypsum system that discharges controls absorption tower densitometer gypsum discharge rate by pitch, causes reflux line flow velocity, changes in flow rate larger, needs adjust the valve pipe quick abrasion by pH meter, densitometer front intercept valve.
CN102489144A discloses a kind of wet flue gas desulfurization absorption tower slurry pH meter, densimeter measurement device and assay method thereof, the invention belongs to the environment protection desulphurization field, comprise slurries trunk line in desulfurization island absorption tower, pH meter container, pH meter, densitometer and the desulfurization island absorption tower.
Although above-mentioned wet flue gas desulfurization absorption tower slurry pH meter, densimeter measurement device have improved the online rate of instrument and accuracy, have reduced the workload of field device maintenance, reduced energy consumption, this apparatus structure is complicated.
The utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of pH value of slurry of desulfuration absorption tower, density measuring equipment to cancel gypsum and discharges system's reflux line, and pipe-line system is simple and reliable.The gypsum excavationg pump does not need continuous operation according to absorption tower density start and stop, reduces energy consumption, reduces pump, system pipeline, valve wearing and tearing, increases the service life.
For achieving the above object, the utility model adopts following technical scheme:
A kind of pH value of slurry of desulfuration absorption tower, density measuring equipment, comprise absorption tower, pH meter and densitometer, a slurry pipe that leads to trench is drawn in tower wall perforate in bottom, described absorption tower, be provided with in order two pH meters and densitometer on described slurry pipe, the horizontal level at densitometer place is higher than the horizontal level at pH meter place.
PH value of slurry of desulfuration absorption tower of the present utility model, density measuring equipment, simple in structure, reliable; Can require control slurry flow rate, flow in strict accordance with densimeter measurement; Cancelled gypsum and discharged system's reflux line, pipe-line system is simple and reliable.The gypsum excavationg pump does not need continuous operation according to absorption tower density start and stop, reduces energy consumption, reduces pump, system pipeline, valve wearing and tearing, increases the service life.Two pH meters are set reduce measure error.
Described slurry pipe tower wall of 0.8～1.2m at the bottom of the distance absorbing tower is drawn.Preferably the tower wall of 1.0m is drawn at the bottom of the distance absorbing tower.
Described slurry pipe is provided with entrance manually operated door and entrance pneumatic door near a side on absorption tower.
Be communicated with wash tub pipe between described entrance pneumatic door and the pH meter that is adjacent, wash tub pipe is provided with pneumatic dish valve.
Described densitometer is provided with diaphragm valve near a side of trench.
The beneficial effects of the utility model are:
(1) pH value of slurry of desulfuration absorption tower provided by the utility model, density measuring equipment are simple in structure, and be reliable;
(2) pH value of slurry of desulfuration absorption tower provided by the utility model, density measuring equipment can require control slurry flow rate, flow in strict accordance with densimeter measurement;
(3) pH value of slurry of desulfuration absorption tower provided by the utility model, density measuring equipment have been cancelled gypsum discharge system reflux line, and pipe-line system is simple and reliable.The gypsum excavationg pump does not need continuous operation according to absorption tower density start and stop, reduces energy consumption, reduces pump, system pipeline, valve wearing and tearing, increases the service life.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is pH value of slurry of desulfuration absorption tower, the density measuring equipment schematic diagram of the utility model embodiment one.
Wherein:
1---the absorption tower, 2---slurry pipe, 3---the entrance manually operated door, 4---the entrance pneumatic door, 5---pH meter, 6---densitometer, 7---diaphragm valve, 8---Pneumatic butterfly valve, 9---wash tub pipe, 10---trench.
The specific embodiment
Embodiment one
Below in conjunction with accompanying drawing the utility model is described in detail, a kind of pH value of slurry of desulfuration absorption tower, density measuring equipment, comprise absorption tower 1, pH meter 5 and densitometer 6, draw a slurry pipe 2 that leads to trench 10 in the tower wall perforate of 1 bottom, described absorption tower, be provided with in order two pH meters 5 and densitometer 6 on described slurry pipe 2, the horizontal level at densitometer 6 places is higher than the horizontal level at pH meter 5 places.As shown in Figure 1.
The pH value of slurry of desulfuration absorption tower of the present embodiment, density measuring equipment, simple in structure, reliable; Can require control slurry flow rate, flow in strict accordance with densimeter measurement; Cancelled gypsum and discharged system's reflux line, pipe-line system is simple and reliable.The gypsum excavationg pump does not need continuous operation according to absorption tower density start and stop, reduces energy consumption, reduces pump, system pipeline, valve wearing and tearing, increases the service life.Two pH meters are set reduce measure error.
The tower wall of described slurry pipe 2 0.8 ~ 1.2m at the bottom of 1 tower of distance absorption tower is drawn; Preferably the tower wall of 1.0m is drawn at the bottom of 1 tower of distance absorption tower.
Described slurry pipe 2 is provided with entrance manually operated door 3 and entrance pneumatic door 4 near a side on absorption tower 1.
Be communicated with wash tub pipe 9 between entrance pneumatic door 4 and the pH meter 5 that is adjacent, wash tub pipe 9 is provided with pneumatic dish valve 8.In order to pipeline is carried out periodic flushing.During flushing, close entrance pneumatic door 4, open Pneumatic butterfly valve 8, in slurry pipe 2, introduce water (desulphurization system fresh water (FW)), just can wash pipeline.Flushing water flows into trench 10 after by pH meter and densitometer.
Described densitometer 6 is provided with diaphragm valve 7 near a side of trench 10.In order to adjust flux.
Claims (6)
1. a pH value of slurry of desulfuration absorption tower, density measuring equipment, comprise absorption tower (1), pH meter (5) and densitometer (6), it is characterized in that, a slurry pipe (2) that leads to trench (10) is drawn in tower wall perforate in described absorption tower (1) bottom, be provided with in order two pH meters (5) and densitometer (6) on described slurry pipe (2), the horizontal level at densitometer (6) place is higher than the horizontal level at pH meter (5) place.
2. pH value of slurry of desulfuration absorption tower according to claim 1, density measuring equipment is characterized in that, the tower wall of described slurry pipe (2) 0.8 ~ 1.2m at the bottom of the tower of distance absorption tower (1) is drawn.
3. pH value of slurry of desulfuration absorption tower according to claim 2, density measuring equipment is characterized in that, the tower wall of described slurry pipe (2) 1.0m at the bottom of the tower of distance absorption tower (1) is drawn.
4. according to claim 1 and 2 or 3 described pH value of slurry of desulfuration absorption towers, density measuring equipment, it is characterized in that, described slurry pipe (2) is provided with entrance manually operated door (3) and entrance pneumatic door (4) near a side on absorption tower (1).
5. pH value of slurry of desulfuration absorption tower according to claim 4, density measuring equipment, it is characterized in that, be communicated with wash tub pipe (9) between described entrance pneumatic door (4) and the pH meter (5) that is adjacent, wash tub pipe (9) is provided with pneumatic dish valve (8).
6. pH value of slurry of desulfuration absorption tower according to claim 5, density measuring equipment is characterized in that, described densitometer (6) is provided with diaphragm valve (7) near a side of trench (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383568 CN202683066U (en) | 2012-08-03 | 2012-08-03 | PH value and density measuring device for slurry in desulfurizing absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383568 CN202683066U (en) | 2012-08-03 | 2012-08-03 | PH value and density measuring device for slurry in desulfurizing absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202683066U true CN202683066U (en) | 2013-01-23 |
Family
ID=47538743
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220383568 Expired - Lifetime CN202683066U (en) | 2012-08-03 | 2012-08-03 | PH value and density measuring device for slurry in desulfurizing absorption tower |
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| CN (1) | CN202683066U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007042A (en) * | 2014-05-29 | 2014-08-27 | 中国神华能源股份有限公司 | Absorption tower system and slurry density measuring device for same |
| CN104807963A (en) * | 2015-04-21 | 2015-07-29 | 国家电网公司 | Device and method for detecting acidity of sulfur hexafluoride gas |
| CN106706739A (en) * | 2017-03-01 | 2017-05-24 | 武汉立为工程技术有限公司 | Absorption tower pH and density measuring device for preventing blocking with rinsing water |
| CN109297859A (en) * | 2018-11-29 | 2019-02-01 | 北京国电龙源环保工程有限公司 | Wet desulphurization device gypsum slurries density and pH measuring device and its application method |
| CN109459988A (en) * | 2018-11-13 | 2019-03-12 | 北京国电龙源环保工程有限公司 | Desulfurizer dewatering system optimal control method, system and computer-readable medium based on big data |
| 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 |
-
2012
- 2012-08-03 CN CN 201220383568 patent/CN202683066U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007042A (en) * | 2014-05-29 | 2014-08-27 | 中国神华能源股份有限公司 | Absorption tower system and slurry density measuring device for same |
| CN104807963A (en) * | 2015-04-21 | 2015-07-29 | 国家电网公司 | Device and method for detecting acidity of sulfur hexafluoride gas |
| CN104807963B (en) * | 2015-04-21 | 2016-08-17 | 国家电网公司 | A kind of sulfur hexafluoride gas acidity detection device and method |
| CN106706739A (en) * | 2017-03-01 | 2017-05-24 | 武汉立为工程技术有限公司 | Absorption tower pH and density measuring device for preventing blocking with rinsing water |
| CN109459988A (en) * | 2018-11-13 | 2019-03-12 | 北京国电龙源环保工程有限公司 | Desulfurizer dewatering system optimal control method, system and computer-readable medium based on big data |
| CN109297859A (en) * | 2018-11-29 | 2019-02-01 | 北京国电龙源环保工程有限公司 | Wet desulphurization device gypsum slurries density and pH measuring device and its application method |
| CN109297859B (en) * | 2018-11-29 | 2024-02-09 | 国能龙源环保有限公司 | Method for using gypsum slurry density and pH measuring device of wet desulfurization 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 |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG ENVIRONMENT INDUSTRY GROUP Co.,Ltd. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: DATANG TECHNOLOGY INDUSTRY GROUP CO.,LTD. Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG TECHNOLOGY INDUSTRY Co.,Ltd. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: CHINA DATANG GROUP ENVIRONMENT TECHNOLOGY CO.,LTD. Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG TECHNOLOGY INDUSTRY GROUP CO.,LTD. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: DATANG TECHNOLOGY INDUSTRY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |