CN110394048B - Desulfurizing tower limestone slurry liquid level measurement device - Google Patents
Desulfurizing tower limestone slurry liquid level measurement device Download PDFInfo
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- CN110394048B CN110394048B CN201910827054.8A CN201910827054A CN110394048B CN 110394048 B CN110394048 B CN 110394048B CN 201910827054 A CN201910827054 A CN 201910827054A CN 110394048 B CN110394048 B CN 110394048B
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- Prior art keywords
- desulfurizing tower
- pulley
- tower body
- liquid level
- motor
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- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 70
- 239000007788 liquid Substances 0.000 title claims abstract description 61
- 239000002002 slurry Substances 0.000 title claims abstract description 58
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 39
- 239000006028 limestone Substances 0.000 title claims abstract description 39
- 238000005259 measurement Methods 0.000 title claims abstract description 10
- 230000005484 gravity Effects 0.000 claims abstract description 43
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000003546 flue gas Substances 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 description 7
- 230000023556 desulfurization Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/40—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/602—Oxides
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a desulfurizing tower limestone slurry liquid level measuring device which comprises a desulfurizing tower body, wherein the desulfurizing tower body comprises a pulley, a torque transmitter, a communicating vessel, a gravity floating ball, a slurry pump, a motor, a controller and an atomizing device, the upper end of the desulfurizing tower body is provided with the motor, one end of the motor is connected with the pulley, the upper end of the desulfurizing tower body is fixedly connected with the torque transmitter, the torque transmitter is arranged below the pulley, the communicating vessel is arranged in the middle of the desulfurizing tower body, the pulley is positioned above the communicating vessel, the gravity floating ball is arranged in the communicating vessel, and the gravity floating ball is connected with the pulley through a rope. The motor of the device drags the floating ball to rise and descend to accurately measure the liquid level of the slurry in the desulfurizing tower, so that the problem that the liquid level is too low to cause the reduction of the desulfurizing efficiency or the overflow of the slurry caused by too high due to the measurement error of the traditional measuring mode can be effectively prevented, and the safe operation of the desulfurizing equipment is ensured.
Description
Technical Field
The invention relates to the technical field of measuring devices, in particular to a limestone slurry liquid level measuring device of a desulfurizing tower.
Background
In large-scale thermal power plants, desulfurization efficiency problems are more and more emphasized, and the liquid level of limestone slurry in a desulfurization tower seriously affects desulfurization efficiency, so that accurate measurement of the liquid level of limestone slurry plays a key role in desulfurization.
The traditional limestone slurry liquid level measurement is to calculate the density by using the pressure difference, then calculate the height of the limestone slurry liquid level by using the density pressure, measure the pressure by using the pressure gauge 1 and the pressure gauge 2, calculate the density of the current limestone slurry by using the formula p=ρgh and calculate the current liquid level height by using the measured pressure of the pressure gauge 2. Because the density of the limestone slurry is uneven, and the upper layer of the limestone slurry has the phenomenon of foam, the measurement has large error and inaccuracy, the desulfurization effect is affected, and the traditional measurement mode measures the error to ensure that the liquid level is too low to reduce the desulfurization efficiency or too high to overflow the limestone slurry, so that the operation safety hidden trouble of the desulfurization equipment is high.
Disclosure of Invention
The invention aims to provide a limestone slurry liquid level measuring device of a desulfurizing tower, which has the characteristics of high measuring accuracy and high safety performance, and solves the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a desulfurizing tower lime stone thick liquid level measurement device, includes the desulfurizing tower body, the desulfurizing tower body includes pulley, moment changer, fluid communication ware, gravity floater, thick liquid pump, motor, controller and atomizing device, the motor is installed to the upper end of desulfurizing tower body, the one end of motor is connected with the pulley, the upper end fixedly connected with moment changer of desulfurizing tower body, the moment changer is installed in the below of pulley, the mid-mounting of desulfurizing tower body has the fluid communication ware, the pulley is located the top of fluid communication ware, the inside of fluid communication ware is equipped with gravity floater, gravity floater is connected with the pulley through the rope, the upper end of desulfurizing tower body is atomizing device, the lateral wall through-connection of desulfurizing tower body has the pipeline, the middle part series connection of pipeline has the thick liquid pump, the one end of pipeline is connected with atomizing device, the one-way controller that is connected with of moment changer, the one-way counter of motor and display respectively, the one-way counter of motor is connected with the controller.
Preferably, the pulley comprises a movable pulley and a moment pulley, the motor is connected with the movable pulley through a motor shaft, and the moment pulley is fixedly connected to the upper end of the desulfurizing tower body through a bracket.
Preferably, a clean flue gas outlet is formed in the upper end of one side of the desulfurizing tower body, and an original flue gas inlet is formed below the clean flue gas outlet.
Preferably, the inside of the desulfurizing tower body is filled with limestone slurry, the lower end of the communicating vessel is positioned below the liquid level of the limestone slurry, and the gravity floating ball is suspended above the liquid level of the limestone slurry.
Compared with the prior art, the invention has the following beneficial effects:
according to the limestone slurry liquid level measuring device of the desulfurizing tower, the communicating vessel is communicated with the liquid level of slurry in the desulfurizing tower, the liquid level of the slurry in the desulfurizing tower is indirectly reflected, meanwhile, the liquid level of the slurry in the desulfurizing tower is stabilized, the motor drags the floating ball to ascend and descend, when the gravity floating ball leaves the liquid surface of the slurry, the gravity floating ball is not subjected to the buoyancy of the slurry, the force born by the rope connected with the gravity floating ball is smaller than the gravity of the gravity floating ball, when the gravity floating ball is positioned on the liquid surface of the slurry, the received force is smaller than the gravity of the gravity floating ball, the liquid level of the slurry reaches the surface of the liquid, the liquid level of the desulfurizing tower is accurately measured, the problem that the desulfurizing efficiency is reduced or the slurry overflows due to the fact that the liquid level is too low in a traditional measuring mode can be effectively prevented, and safe operation of desulfurizing equipment is guaranteed.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a block diagram of a pulley according to the present invention;
fig. 3 is a schematic diagram of the operation of the controller of the present invention.
In the figure: 1. a desulfurizing tower body; 11. a pulley; 111. a movable pulley; 112. a moment pulley; 113. a bracket; 12. a torque transducer; 13. a communicating vessel; 14. a gravity floating ball; 15. a slurry pump; 16. a motor; 17. a controller; 18. an atomizing device; 2. a rope; 3. a pipe; 4. a display; 5. a counter; 6. limestone slurry; 7. a clean flue gas outlet; 8. and a raw flue gas inlet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, a limestone slurry liquid level measuring device of a desulfurizing tower comprises a desulfurizing tower body 1, wherein the desulfurizing tower body 1 comprises a pulley 11, a torque transmitter 12, a communicating vessel 13, a gravity floating ball 14, a slurry pump 15, a motor 16, a controller 17 and an atomizing device 18, the upper end of the desulfurizing tower body 1 is provided with the motor 16, the motor 16 is used for controlling the up-and-down motion of the gravity floating ball 14 so as to determine the specific height position of the liquid level of limestone slurry 6, meanwhile, the motor 16 is provided with a revolution counter 5, the revolution counter 5 can accurately measure the revolution of the motor 16 so as to indirectly calculate the liquid level of limestone slurry 6, one end of the motor 16 is connected with the pulley 11, the pulley 11 comprises a movable pulley 111 and a torque pulley 112, the motor 16 is connected with the movable pulley 111 through a motor shaft, the torque pulley 112 is fixedly connected with the upper end of the desulfurizing tower body 1 through a bracket 113, the upper end of one side of the desulfurizing tower body 1 is provided with a clean flue gas outlet 7, the lower part of the clean flue gas outlet 7 is provided with an original flue gas inlet 8, the upper end of the desulfurizing tower body 1 is fixedly connected with a moment transmitter 12, the moment transmitter 12 is arranged below a pulley 11, the middle part of the desulfurizing tower body 1 is provided with a communicating vessel 13, the communicating vessel 13 is mainly used for communicating the outside with limestone slurry 6 in the desulfurizing tower, because the atmospheric pressure is equivalent to the pressure in the desulfurizing tower, the liquid level of the limestone slurry 6 in the desulfurizing tower can be indirectly measured by measuring the liquid level of the limestone slurry 6 in the communicating device, the liquid level of the slurry in the desulfurizing tower plays a role of liquid seal, and simultaneously plays a role of sealing sulfur-containing gas in the absorbing tower, so that the sulfur-containing gas in the desulfurizing tower is isolated from the atmosphere to prevent the environment from being damaged, the pulley 11 is positioned above the communicating vessel 13, the inside of the communicating vessel 13 is provided with a gravity floating ball 14, the gravity floating ball 14 is a floating ball with certain mass, the gravity floating ball 14 is a key part of the measuring device, the gravity floating ball 14 has the effect that the floating ball cannot continuously sink after reaching the liquid level surface of the limestone slurry 6, the measuring device can sense the gravity of the floating ball after leaving the liquid level surface of the limestone slurry 6, the gravity floating ball 14 is connected with a pulley 11 through a rope 2, the rope is connected with the gravity floating ball 14 through a moment pulley 112, the moment transmitter 12 is used for measuring the acting force of the rope connected with the gravity floating ball 14 on the pulley 11, when the gravity floating ball 14 reaches the liquid level surface of the limestone slurry 6, the vector sum of the gravity and the buoyancy of the gravity floating ball 14 is zero due to the buoyancy effect, the pressure measured by the moment transmitter 12 of the pulley 11 is zero, the liquid level height of the limestone slurry 6 is obtained at the moment, the gravity floating ball 14 can accurately reach the position of the liquid surface of the limestone slurry 6 after contacting the liquid level surface, the rope can accurately measure the position of the gravity floating ball 14, the liquid level of the limestone slurry 6, the desulfurizing tower body is connected with the desulfurizing tower 1, the desulfurizing tower 1 is connected with the side wall 1, the desulfurizing tower 1 is connected with the desulfurizing tower 1, and the desulfurizing tower 1 is connected with the side wall 1 in series, and the side wall 1 is connected with the desulfurizing tower 1.
Referring to fig. 3, the torque transducer 12 is unidirectionally connected with a controller 17, the controller 17 is a control core of the device, when measurement is performed, the torque transducer 12 sends measured acting force to the controller 17, the controller 17 determines whether the gravity floating ball 14 reaches the liquid level surface of the limestone slurry 6 through analysis, and when the torque transducer 12 detects rope tension change, the rotation of the motor is stopped; then the rotation number of the motor 16 is judged through the counter 5 of the motor 16, so that the liquid level of the limestone slurry 6 is calculated, finally, the measured liquid level of the limestone slurry 6 is displayed through the display device, and the liquid level inside the desulfurizing tower is relatively stable, so that the measuring can be carried out once at regular intervals, the motor 16 and the display 4 are respectively connected with the controller 17 in a one-way mode, the counter 5 is connected with the motor 16 in a one-way mode, and the controller 17 is connected with the counter 5 in a one-way mode.
To sum up: according to the limestone slurry liquid level measuring device for the desulfurizing tower, the communicating vessel 13 is communicated with the liquid level of the slurry in the desulfurizing tower to indirectly reflect the liquid level of the slurry in the desulfurizing tower, meanwhile, the motor 16 is used for stabilizing the liquid level of the slurry in the desulfurizing tower, the floating ball is dragged to ascend and descend, when the gravity floating ball 14 leaves the liquid surface of the slurry, the gravity floating ball 14 is not subjected to the buoyancy of the slurry, the force received by the rope connected with the gravity floating ball 14 is the gravity of the gravity floating ball 14, when the gravity floating ball is on the liquid surface of the slurry, the received force is smaller than the gravity of the rope, the gravity of the rope is judged to reach the surface of the liquid, the liquid level of the slurry in the desulfurizing tower is accurately measured, and the problem that the slurry overflows due to the fact that the liquid level is too low in a traditional measuring mode is effectively prevented, and the safe operation of the desulfurizing equipment is guaranteed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a desulfurizing tower lime stone thick liquid level measurement device, includes desulfurizing tower body (1), its characterized in that: the desulfurizing tower body (1) comprises a pulley (11), a moment transmitter (12), a communicating vessel (13), a gravity floating ball (14), a slurry pump (15), a motor (16), a controller (17) and an atomizing device (18), wherein the motor (16) is installed at the upper end of the desulfurizing tower body (1), one end of the motor (16) is connected with the pulley (11), the moment transmitter (12) is fixedly connected with the upper end of the desulfurizing tower body (1), the moment transmitter (12) is installed below the pulley (11), the communicating vessel (13) is installed in the middle of the desulfurizing tower body (1), the pulley (11) is located above the communicating vessel (13), the gravity floating ball (14) is arranged in the communicating vessel (13), the pulley (11) is connected with the pulley (11) through a rope (2), the upper end of the desulfurizing tower body (1) is provided with the atomizing device (18), the side wall of the desulfurizing tower body (1) is connected with a pipeline (3) in a penetrating way, the middle part of the pipeline (3) is connected with the slurry pump (15), one end of the pipeline (3) is connected with the atomizing device (17) in series, the controller (17) is respectively connected with the motor (16) and the display (4) in a unidirectional manner, the motor (16) is connected with the counter (5) in a unidirectional manner, and the counter (5) is connected with the controller (17) in a unidirectional manner;
the pulley (11) comprises a movable pulley (111) and a moment pulley (112), the motor (16) is connected with the movable pulley (111) through a motor shaft, and the moment pulley (112) is fixedly connected to the upper end of the desulfurizing tower body (1) through a bracket (113);
a clean flue gas outlet (7) is formed in the upper end of one side of the desulfurizing tower body (1), and an original flue gas inlet (8) is formed below the clean flue gas outlet (7);
the inside of desulfurizing tower body (1) is filled with lime stone thick liquid (6), and the lower extreme of communicating vessel (13) is located the liquid level below of lime stone thick liquid (6), and gravity floater (14) suspend in the liquid level top of lime stone thick liquid (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910827054.8A CN110394048B (en) | 2019-09-03 | 2019-09-03 | Desulfurizing tower limestone slurry liquid level measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910827054.8A CN110394048B (en) | 2019-09-03 | 2019-09-03 | Desulfurizing tower limestone slurry liquid level measurement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110394048A CN110394048A (en) | 2019-11-01 |
| CN110394048B true CN110394048B (en) | 2024-01-23 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202460447U (en) * | 2012-01-10 | 2012-10-03 | 武汉光谷环保科技股份有限公司 | Measuring device for liquid level of wet-process flue gas desulfurization absorption tower |
| CN206184245U (en) * | 2016-11-22 | 2017-05-24 | 河北宏达环境工程有限公司 | Limestone -gypsum wet flue gas desulfurization device |
| CN108837689A (en) * | 2018-05-04 | 2018-11-20 | 中国神华能源股份有限公司 | Double tower double circulation desulphurization system |
| CN210786879U (en) * | 2019-09-03 | 2020-06-19 | 大唐保定热电厂 | Desulfurizing tower limestone slurry liquid level measurement device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6526278B1 (en) * | 2018-03-23 | 2019-06-05 | 三菱日立パワーシステムズ株式会社 | Exhaust gas desulfurization system |
-
2019
- 2019-09-03 CN CN201910827054.8A patent/CN110394048B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202460447U (en) * | 2012-01-10 | 2012-10-03 | 武汉光谷环保科技股份有限公司 | Measuring device for liquid level of wet-process flue gas desulfurization absorption tower |
| CN206184245U (en) * | 2016-11-22 | 2017-05-24 | 河北宏达环境工程有限公司 | Limestone -gypsum wet flue gas desulfurization device |
| CN108837689A (en) * | 2018-05-04 | 2018-11-20 | 中国神华能源股份有限公司 | Double tower double circulation desulphurization system |
| CN210786879U (en) * | 2019-09-03 | 2020-06-19 | 大唐保定热电厂 | Desulfurizing tower limestone slurry liquid level measurement device |
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| CN110394048A (en) | 2019-11-01 |
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