CN106768192A - A kind of accurate measurement absorbing tower liquid-level and absorption tower falseness liquid level alarm device - Google Patents
A kind of accurate measurement absorbing tower liquid-level and absorption tower falseness liquid level alarm device Download PDFInfo
- Publication number
- CN106768192A CN106768192A CN201710071449.0A CN201710071449A CN106768192A CN 106768192 A CN106768192 A CN 106768192A CN 201710071449 A CN201710071449 A CN 201710071449A CN 106768192 A CN106768192 A CN 106768192A
- Authority
- CN
- China
- Prior art keywords
- level
- liquid
- tower
- absorbing tower
- absorption tower
- 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.)
- Pending
Links
Classifications
-
- 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
- G01F23/46—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 using magnetically actuated indicating means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The present invention is a kind of accurate measurement absorbing tower liquid-level and absorption tower falseness liquid level alarm device, and for the structure and process characteristic of desulfuration absorbing tower, the traditional magnetic double level gauge of transformation measures absorbing tower liquid-level for split-type structural.On the basis of accurate measurement absorbing tower liquid-level, the present invention each of 2 height also below overfall highly respectively sets 1 height of conductance type liquid-level switch detection foam every 90 degree and alarms along absorption tower is cylindrical.In addition, absorbing standby and ancillary method of the absorbing tower liquid-level that measures of 3 pressure transmitters of tower bottom as this measurement apparatus.Absorbing tower liquid-level can accurately be measured using above-mentioned 3 measure and in false liquid level superelevation and alarm.Present invention can ensure that absorption tower relevant device runs under design conditions, the operational efficiency of equipment is improve, reduce energy consumption, it is ensured that the safe and highly efficient operation of desulfuration absorbing tower.
Description
Technical field
Patent of the present invention is related to a kind of accurate measurement of wet desulfurization system absorption tower stock tank liquid level and false level sensing
And the device alarmed.The device measures absorption tower stock tank liquid level, the inspection of conductance type liquid-level switch using Split type magnetic flap level gauge
Survey absorption tower stock tank falseness liquid level and alarm..
Background technology
Existing desulfuration absorbing tower stock tank level gauging adds ultrasonic level gage using pressure transmitter, because of absorption tower stock tank slurry
The density of liquid is in different height and differs, and the liquid level on absorption tower can not be accurately measured using pressure transmitter.Yin Tanei slurries
Spray, ullage bubble and smoke-shock, the echo of the ultrasonic wave of ultrasonic level gage be subject to it is very big disturb, ultrasonic solution
Position meter can not accurately measure the liquid level of absorption tower stock tank, cannot more detect the height of foam above the slurries of absorption tower.
Level gauging is forbidden, and there is absorption tower foam, the risk of slurries overflow, and slurries pour in down a chimney to will influence unit during flue
Safe operation, absorption tower overflow belongs to production accident.When measuring absorbing tower liquid-level using conventional method, its measured value is often inclined
Greatly, operations staff reduces liquid level operation to ensure safety, only.Although reducing liquid level operation ensure that safety, life is sacrificed
Efficiency is produced, causes to waste.Reducing liquid level operation causes the absorption tower relevant device can not to be run under design conditions, will appear from slurries
Circulating-pump outlet insufficient pressure, the oxidization time of slurries not enough etc., influences the operational efficiency of desulphurization system, produces very big resource
Waste, increased the operating cost of energy consumption and desulphurization system.
The content of the invention
Prior art measurement absorbing tower liquid-level is forbidden, and the present invention is transformed for the structure and process characteristic of desulfuration absorbing tower
Traditional magnetic double level gauge measures absorbing tower liquid-level for split-type structural.As shown in Figure 2, Split type magnetic flap level gauge
Including ball float, ball float guiding tube, fixed pulley, cotton rope, magnetic ball, magnetic column and transmitter etc..Wherein ball float guiding tube is adaptation suction
Receive the operating mode of tower and specially design, it is to avoid ball float is irregular in liquid level in the presence of flowing slurries, sprayed slurry, shower water
Floating and influence measurement.
To solve foam flooding problems, on the basis of accurate measurement absorbing tower liquid-level, the present invention is also past in overfall
Lower 500mm and 1000mm eminences respectively set 1 conductance type liquid-level switch, same plane totally 4 liquid-level switch detections every an angle of 90 degrees
The height of foam is simultaneously alarmed.
Although traditional pressure transmitter surveys liquid level and can not accurately measure liquid level, because its is stable, failure is few, and
All for triplex level redundancy is set, the auxiliary equipment that can be measured as magnetic double level gauge.During normal operation, the survey of transmitter is can refer to
Value carrys out comprehensive descision magnetic double level gauge and whether the measurement of liquid-level switch is reliable, in magnetic double level gauge and liquid-level switch event
During barrier, pressure transmitter can be used as standby metering system.
Brief description of the drawings
In order to clearly demonstrate the technical scheme of patent of the present invention, illustrate that background technology and the present invention are special using drawings below
The technical scheme of profit：
Fig. 1：Absorption tower schematic diagram；
Fig. 2：Absorbing tower liquid-level instrumentation plan；
Fig. 3：Liquid-level switch installs schematic elevation view；
Fig. 4：Liquid-level switch installs schematic top plan view；
Fig. 5：Absorbing tower liquid-level meter scheme of installation.
Specific embodiment
The traditional magnetic double level gauge of present invention transformation is split-type structural, as shown in Figure 2, Split type magnetic turnover panel liquid level
Meter is including ball float, ball float guiding tube, fixed pulley, cotton rope, magnetic ball, magnetic column and transmitter etc..Wherein ball float guiding tube is adaptation
The operating mode on absorption tower and specially design, it is to avoid ball float flowing slurries, sprayed slurry, in the presence of shower water it is random in liquid level
The floating of rule and influence measurement.
As seen from Figure 2, magnetic double level gauge is contact type measurement, and ball float changes with the change of liquid level, entirely
The measurement of process contact formula, non-blind area and false liquid level.Ball float fluctuates in the presence of slurries buoyancy, and ball float is in hawser and determines
In the presence of pulley, ball float drives magnetic ball to be fluctuated in measurement pipe along guiding tube, the effect of magnetic column magnetic force in magnetic ball
Under, overturning and show different colours, the display liquid level that liquid level gauge both can be visual and clear on the spot, transmitter can also export 4 ~
20mA signals are to Desulfurization Control Systems.
There is the scope that agitator is not covered, easy fouling, as shown in Figure 2, to avoid because inhaling because absorbing tower bottom
Tower bottom is received because of the static rear fouling of slurries, the measurement start design of magnetic double level gauge is in 1m or so from the ground.
As shown in Figure 2, the ball float of Split type magnetic flap level gauge, fixed pulley, cotton rope, magnetic ball are in a ring for semi-hermetic
Run in border, can effectively avoid slurries from flowing, slurries spray, the influence of Water spray, it is ensured that ball float in the predetermined scope on
Lower floating.Because only ball float contacts slurries, fixed pulley relative clean, so the measurement of liquid level gauge is accurately and reliably.
Because absorbing tower liquid-level is general more than 15 meters, the measurement pipe of magnetic double level gauge and the length of ball float guiding tube also exist
More than 15 meters, be the transport and installation of aspect magnetic double level gauge, magnetic turnover panel liquid level typically is divided into several sections, as shown in accompanying drawing 5.
Connected using flange at segmentation, each segmentation is fixed on absorption tower wall using flange.
Be to solve foam flooding problems, on the basis of accurate measurement absorbing tower liquid-level, should overfall down 500mm and
1000mm eminences set a height for conductance type liquid-level switch detection foam and alarm every an angle of 90 degrees.
As shown in Figure 3, when foam coverage liquid-level switch, liquid-level switch connects alarm.Its operation principle is：Connecing liquid
The low alternating voltage of electric insulation is loaded on electrode, during electrode contact conductive liquid, measurable electric current occurs, when electric current reaches
Connection alarm signal is sent when limitation.
The diameter on absorption tower is general all more than 10 meters, the influence of Yin Tanei flue gas streams, and the foam at the top of absorption tower is simultaneously
It is not horizontality, foam may be piled up in different height, so, single probe may be reported by mistake, to improve the accuracy for judging,
Detection switch should be set in the different angles of different absorbing tower planes, to ensure that measurement is accurate.As shown in Figure 4, it is proposed that same
One plane sets 4 liquid-level switches, and the number of winning the confidence is accurate to ensure measurement in the way of 4 take 3.
Although traditional pressure transmitter surveys liquid level and can not accurately measure liquid level, because its is stable, failure is few, and
All for triplex level redundancy is set, the auxiliary equipment that can be measured as magnetic double level gauge.During normal operation, the survey of transmitter is can refer to
Value carrys out comprehensive descision magnetic double level gauge and whether the measurement of liquid-level switch is reliable, in magnetic double level gauge and liquid-level switch event
During barrier, pressure transmitter can be used as standby metering system.Pressure transmitter extensive utilization in existing desulphurization system, in the present invention
In not narration.
Claims (3)
1. a kind of accurately to measure absorbing tower liquid-level and absorption tower falseness liquid level alarm device, its feature includes：
Using Split type magnetic flap level gauge, contact type measurement absorbing tower liquid-level reaches the purpose of accurate measurement, according to absorption tower
Design feature and desulphurization system process conditions, set ball float guiding tube in Ta Nei, the ball float of Split type magnetic flap level gauge exists
Changes with the change of absorbing tower liquid-level in guiding tube, and ball float guiding tube is designed as semi-hermetic type structure, it is to avoid ball float, fixed cunning
The parts such as wheel are influenceed by slurries flowing, spray, Water spray.
2. liquid level is calculated as contact type measurement, actual response absorbing tower liquid-level；
3. conductance type liquid-level switch detection foam height more than liquid level is set（It is commonly called as false liquid level）And alarm；
At 500mm and 1000mm height under the overfall of absorption tower, a conductance type liquid level is set every 90 degree along absorption tower is cylindrical
The height of foam on switch detection liquid level.
3. same plane sets 4 liquid-level switches, the number of winning the confidence in the way of 4 take 3 altogether, it is ensured that reliable to judge foam height and alarm；
4. retain traditional pressure transmitter and survey standby and ancillary method of the absorption tower stock tank liquid level as this measurement apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710071449.0A CN106768192A (en) | 2017-02-09 | 2017-02-09 | A kind of accurate measurement absorbing tower liquid-level and absorption tower falseness liquid level alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710071449.0A CN106768192A (en) | 2017-02-09 | 2017-02-09 | A kind of accurate measurement absorbing tower liquid-level and absorption tower falseness liquid level alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106768192A true CN106768192A (en) | 2017-05-31 |
Family
ID=58956760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710071449.0A Pending CN106768192A (en) | 2017-02-09 | 2017-02-09 | A kind of accurate measurement absorbing tower liquid-level and absorption tower falseness liquid level alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106768192A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271325A (en) * | 2017-08-10 | 2017-10-20 | 合肥宁垣工程技术有限责任公司 | A kind of double liquid level measurement density devices for being arranged on bottom of towe |
| CN107626197A (en) * | 2017-11-06 | 2018-01-26 | 安徽理工大学 | A kind of thionizer liquid level meter and installation method |
| CN107687880A (en) * | 2017-09-27 | 2018-02-13 | 西安迅航光电科技有限公司 | Foam liquid level monitoring system based on fiber-optic grating sensor |
| CN114018363A (en) * | 2021-11-05 | 2022-02-08 | 山东钢铁集团日照有限公司 | Condenser hot well liquid level measurement device |
| CN114849284A (en) * | 2022-04-08 | 2022-08-05 | 国能龙源环保有限公司 | Defoaming method for spraying device |
-
2017
- 2017-02-09 CN CN201710071449.0A patent/CN106768192A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271325A (en) * | 2017-08-10 | 2017-10-20 | 合肥宁垣工程技术有限责任公司 | A kind of double liquid level measurement density devices for being arranged on bottom of towe |
| CN107687880A (en) * | 2017-09-27 | 2018-02-13 | 西安迅航光电科技有限公司 | Foam liquid level monitoring system based on fiber-optic grating sensor |
| CN107626197A (en) * | 2017-11-06 | 2018-01-26 | 安徽理工大学 | A kind of thionizer liquid level meter and installation method |
| CN114018363A (en) * | 2021-11-05 | 2022-02-08 | 山东钢铁集团日照有限公司 | Condenser hot well liquid level measurement device |
| CN114849284A (en) * | 2022-04-08 | 2022-08-05 | 国能龙源环保有限公司 | Defoaming method for spraying device |
| CN114849284B (en) * | 2022-04-08 | 2024-05-28 | 国能龙源环保有限公司 | Defoaming method for spraying device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106768192A (en) | A kind of accurate measurement absorbing tower liquid-level and absorption tower falseness liquid level alarm device | |
| CN207860407U (en) | A kind of easy-to-dismount shipping draft measuring device | |
| CN206695871U (en) | A kind of accurate measurement absorbing tower liquid-level and absorption tower falseness liquid level alarm device | |
| CN107626457A (en) | A kind of flotation cell mineral pulp level continuous regulating mechanism and its adjusting method | |
| CN207605880U (en) | A kind of flotation cell mineral pulp level continuously measures and regulating device | |
| CN202041237U (en) | Non-full tube measurement flow meter | |
| CN101393019B (en) | Non-contact oil layer thickness detecting method | |
| CN204128639U (en) | A kind of flotation cell liquid level pick-up unit | |
| CN2910367Y (en) | Level monitor of float type supersonic flotation cell | |
| CN103674162A (en) | Liquid level measuring device and method for absorption tower | |
| CN209247129U (en) | A kind of Simple water pool liquid level detection device | |
| CN206740577U (en) | Slurry density of desulfurizing absorption column monitoring system | |
| CN204758088U (en) | Flotation column liquid level measurement device | |
| CN107626197A (en) | A kind of thionizer liquid level meter and installation method | |
| CN202012345U (en) | Mud pool liquid level monitoring device | |
| CN205027383U (en) | Flotation liquid level and foam blanket thickness detection device | |
| CN208458836U (en) | A kind of liquid level detection system and liquid supply or recovery system | |
| CN212867529U (en) | Drilling fluid outlet flow measuring device | |
| CN206074082U (en) | A kind of corrosive liquids liquid level emasuring device developed based on secondary meter | |
| CN2690889Y (en) | Automatic ultrasonic flaw detection device | |
| CN211954334U (en) | Slurry liquid level monitoring and alarming device | |
| CN207908017U (en) | A kind of device measured for tank fill level | |
| CN208872383U (en) | A kind of float-type liquid level tester | |
| CN217930454U (en) | Power plant desulfurization absorption tower pit liquid level measurement device | |
| CN206321312U (en) | Double Floating Ball Liquid Levels show alarming device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |
|
| WD01 | Invention patent application deemed withdrawn after publication |