CN218097947U - System for improving accuracy of desulfurization pit ultrasonic liquid level meter - Google Patents
System for improving accuracy of desulfurization pit ultrasonic liquid level meter Download PDFInfo
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- CN218097947U CN218097947U CN202222101581.0U CN202222101581U CN218097947U CN 218097947 U CN218097947 U CN 218097947U CN 202222101581 U CN202222101581 U CN 202222101581U CN 218097947 U CN218097947 U CN 218097947U
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Abstract
The utility model discloses an improve desulfurization pit supersound level gauge accuracy system, belong to pit ultrasonic wave liquid level monitoring field, solved current row to the pit in absorption tower thick liquid foam, the produced steam of thick liquid is at the condensation of ultrasonic wave level gauge probe department, the demonstration numerical value of ultrasonic wave level gauge is undulant by a wide margin, arouse that pit pump is wrong frequently opens and stops, the problem that produces the harm to the pit pump, it sweeps in succession to the level gauge to have to set up heater heated air, make the level gauge can comparatively exact demonstration actual liquid level, improve the beneficial effect of its sensitivity, concrete scheme is as follows: the utility model provides an improve desulfurization pit supersound level gauge accuracy system, includes the pit, and the pit is connected the pit and is come the water pipe way, is provided with the ultrasonic wave level gauge on the pit, and the level gauge probe orientation of ultrasonic wave level gauge bottom is perpendicular with the pit liquid level, and pit one side still sets up the fan, installs the heater on the pipeline of fan output, the directional level gauge probe in gas outlet of pipeline.
Description
Technical Field
The utility model belongs to the technical field of the pit ultrasonic wave liquid level monitoring technique and specifically relates to an improve desulfurization pit supersound level gauge accuracy system.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The coal-fired boiler can discharge a large amount of SO during combustion 2 The wet flue gas desulfurization is the most common flue gas desulfurization process for large coal-fired boilers, and causes pollution to the atmospheric environment. The pit system in the process is used for collecting, conveying or storing liquid generated in the operation, operation failure, inspection, sampling, flushing, cleaning processes or leakage of equipment in a desulfurizing tower area, and conveying the liquid to a desulfurizing tower or an accident slurry tank through a pit pump.
The ultrasonic level gauge of the pit is usually mounted directly on the upper part of the pit. Due to the influence of condensation of steam generated by slurry foam and slurry of an absorption tower discharged into a pit at a probe of the ultrasonic liquid level meter, the display numerical value of the ultrasonic liquid level meter often fluctuates greatly, so that the liquid level detected by the ultrasonic liquid level meter is a false liquid level, the pit pump is started and stopped frequently in error, the pit pump is damaged, and the stability and the safe operation of the whole desulfurization system are seriously influenced.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing an improve desulfurization pit supersound level gauge accuracy system sweeps the level gauge in succession through setting up heater heated air, makes the level gauge can comparatively exact demonstration actual liquid level, improves its sensitivity, reduces the mistake of pit pump and opens and stop the frequency, reduces the harm that produces the pit pump.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
the utility model provides an improve desulfurization pit supersound level gauge accuracy system, includes the pit, and the pit is connected the pit and is come the water pipe way, is provided with the ultrasonic wave level gauge on the pit, and the level gauge probe orientation of ultrasonic wave level gauge bottom is perpendicular with the pit liquid level, and pit one side still sets up the fan, installs the heater on the pipeline of fan output, the directional level gauge probe in gas outlet of pipeline.
According to the system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit, the switch valve is arranged between the air outlet of the pipeline and the heater.
According to the system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit, the pipeline at the output end of the fan is provided with the emptying valve.
According to the system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit, the emptying valve is arranged between the heater and the switch valve.
The system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit is characterized in that a stirrer is arranged in the pit.
According to the system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit, a pit water outlet pipeline is arranged at one end, far away from a pit water inlet pipeline, of the pit.
According to the system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit, the pit water outlet pipeline is provided with the pit pump.
According to the system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit, the pipe orifice of the pit water outlet pipeline extends into the bottom of the pit, and a filter is arranged at the pipe orifice.
The system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit further comprises a controller, wherein the controller is in signal connection with the heater, the fan, the ultrasonic liquid level meter, the emptying valve and the switch valve.
According to the system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit, the controller is further connected with an alarm.
Above-mentioned the utility model has the advantages as follows:
1. the utility model discloses a set up the heater, realized utilizing the hot-air to sweep in succession the level gauge probe of ultrasonic wave level gauge, reduced thick liquid or steam to the influence of level gauge probe, make the ultrasonic wave level gauge can be more accurate demonstration actual liquid level. The sensitivity is improved, the frequency of mistaken start and stop of the pit pump is reduced, and the damage to the pit pump is reduced.
2. The utility model discloses a mouth of pipe at pit outlet conduit sets up the filter for liquid to in the pit filters, prevents that solid impurity from blockking up pit outlet conduit, and the simple structure of whole system can practice thrift construction transformation cost and running cost.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
FIG. 1 is a schematic view of the overall structure of a system for improving the accuracy of an ultrasonic liquid level meter for a desulfurization pit in an embodiment of the present invention.
In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the schematic is shown only schematically.
Wherein: 1. a pit water inlet pipeline, 2, an ultrasonic liquid level meter, 3, a liquid level meter probe, 4, a fan, 5, a heater, 6, an emptying valve, 7, a switch valve, 8, a stirrer, 9, a pit pump, 10 and a pit liquid level.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Just as the introduction of background art, arrange among the prior art to the pit in absorption tower thick liquid foam, the produced steam of thick liquid and locate the condensation at ultrasonic wave level gauge probe, ultrasonic wave level gauge's demonstration numerical value fluctuates widely, arouses that pit pump mistake frequently opens and stops, produces the problem of harm to the pit pump, in order to solve above technical problem, the utility model provides an improve desulfurization pit ultrasonic level gauge accuracy system.
Examples
The utility model discloses an among the typical embodiment, refer to fig. 1, an improve desulfurization pit supersound level gauge accuracy system, including the pit, the pit is used for collecting, carries or stores desulfurizing tower regional equipment operation, operational failure, inspection, sample, washing, cleaning process or seepage and the liquid that produces, carries to desulfurizing tower or accident thick liquid case through the pit pump.
One end of the top opening of the pit is connected with a pit water supply pipeline 1, the pit water supply pipeline 1 extends into the liquid level of the pit, the liquid level of the pit refers to the plane where the top opening of the pit is located in the embodiment, and under special conditions, the liquid level in the pit can reach the position.
An ultrasonic liquid level meter 2 is arranged at the pit, and a liquid level meter probe 3 at the bottom of the ultrasonic liquid level meter 2 faces to be vertical to the liquid level 10 of the pit. In consideration of the influences of slurry foam of an absorption tower discharged into a pit and condensation of steam generated by the slurry at a probe of the ultrasonic liquid level meter, the display numerical value of the ultrasonic liquid level meter 2 often fluctuates greatly to influence the whole system, a fan 4 is further arranged on one side of the pit, a heater 5 is installed on a pipeline at the output end of the fan 4, and an air outlet of the pipeline points to the probe 3 of the liquid level meter.
Further, a switching valve 7 is arranged on the pipeline between the air outlet of the pipeline and the heater 5, the switching valve 7 is a one-way valve, and an exhaust valve 6 is arranged on the pipeline at the output end of the fan 4. The evacuation valve 6 is provided in a line between the heater 5 and the on-off valve 7.
The controller is arranged outside the pit and is in signal connection with the heater 5, the fan 4, the ultrasonic liquid level meter 2, the emptying valve 6 and the switch valve 7. The controller is also connected with an alarm positioned outside the pit.
When the system operates, the emptying valve 6 of the fan 4 is in a normally open state, the switch valve 7 is in a normally closed state, when the fan 4 receives an opening instruction, the fan 4 is opened through the controller, after the time delay is achieved, the switch valve 7 is controlled to be opened firstly, then the fan emptying valve 6 is closed, and the time delay control valve is carried out to prevent sundries in a pipeline from being blown to the heater 5 and the liquid level meter probe 3 through the pipeline, so that the heater 5 and the ultrasonic liquid level meter 2 are prevented from being damaged.
After the fan 4 is put into operation, the controller controls the heater 5 to automatically put into operation to heat air, the hot air reaches the liquid level meter probe 3 through the pipeline to continuously purge the liquid level meter probe 3, so that the aim of removing residual slurry or impurities on the pit liquid level meter probe is fulfilled, and the influence of condensation of steam generated by slurry foam and slurry on the ultrasonic liquid level meter probe is avoided.
It will be appreciated that a stirrer 8 is provided within the pit. And a pit water outlet pipeline is arranged at one end of the pit, which is far away from the pit water inlet pipeline. A pit pump 9 is arranged on the pit water outlet pipeline. The pipe orifice of the pit water outlet pipeline extends into the bottom of the pit, and a filter is arranged at the pipe orifice.
Through setting up the agitator, prevent that the solid in the pit from deposiing at the bottom of the pit, the pit outlet conduit passes through the pit pump and carries the liquid in the pit to the desulfurizing tower in. The pit pump is the measuring pump, and the filter is used for filtering the liquid in the pit, prevents that solid impurity from blockking up pit outlet conduit.
Under the special condition, when the pit water inlet pipeline discharges too much liquid to the pit, and the pit pump 9 can not discharge the liquid through the pit outlet pipeline in time, the liquid level in the pit rises, the ultrasonic liquid level meter 2 indicates a high liquid level at the moment, the pressure at the outlet of the fan 4 becomes large, after the fan 4 receives a stop instruction from the controller, the heater 5 is firstly stopped, the emptying valve 6 is opened, the switch valve 7 is closed, and the fan automatically stops after the delay reaches. Can effectually prevent that fan 4 stops in the twinkling of an eye and causes other debris in thick liquid or the pit to suck fan 4 backward, cause the harm to fan 4.
The heater is arranged between the emptying valve and the fan, namely the heater is connected to the outlet end of the fan, so that the heater can be ensured to be at a higher position, and the heater is prevented from being damaged due to the fact that the heater is submerged by too much liquid in the pit under special conditions.
It can be understood that after the stop command of the fan 4 is sent, the heater 5 must be stopped quickly to prevent the heater from continuing to operate and triggering fire hazard. When the ultrasonic liquid level meter 2 indicates a high liquid level, the alarm sends out an alarm signal, and the alarm is in the prior art.
This embodiment has realized utilizing the hot-air to carry out continuous sweeping to the level gauge probe of ultrasonic wave level gauge 2 through setting up heater 5, reduces thick liquid or steam and to the influence of level gauge probe 3, makes the ultrasonic wave level gauge can be more for the actual liquid level of exact demonstration, improves the sensitivity, reduces pit pump 9's mistake and opens and stop the frequency, reduces the harm that produces the pit pump. And simple structure can practice thrift construction transformation cost and running cost.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an improve desulfurization pit supersound level gauge accuracy system, a serial communication port, including the pit, the pit is connected the pit and is come the water pipe way, is provided with the ultrasonic wave level gauge on the pit, and the level gauge probe orientation of ultrasonic wave level gauge bottom is perpendicular with the pit liquid level, and pit one side still sets up the fan, installs the heater on the pipeline of fan output, the directional level gauge probe in gas outlet of pipeline.
2. The system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit according to claim 1, characterized in that a switch valve is arranged between the air outlet of the pipeline and the heater.
3. The system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit according to claim 2, characterized in that an exhaust valve is arranged on a pipeline at the output end of the fan.
4. The system for improving accuracy of the ultrasonic liquid level meter of the desulfurization pit according to claim 3, wherein the evacuation valve is arranged between the heater and the switch valve.
5. The system for improving accuracy of an ultrasonic liquid level meter for a desulfurization pit according to claim 1, wherein an agitator is arranged in the pit.
6. The system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit as recited in claim 1, wherein a pit water outlet pipeline is arranged at one end of the pit far away from a pit water inlet pipeline.
7. The system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit according to claim 6, wherein a pit pump is arranged on the pit water outlet pipeline.
8. The system for improving the accuracy of the ultrasonic liquid level meter for the desulfurization pit as recited in claim 7, wherein the pipe orifice of the pit water outlet pipeline extends into the bottom of the pit, and a filter is arranged at the pipe orifice.
9. The system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit according to claim 4, characterized by further comprising a controller, wherein the controller is in signal connection with the heater, the fan, the ultrasonic liquid level meter, the emptying valve and the switch valve.
10. The system for improving the accuracy of the ultrasonic liquid level meter of the desulfurization pit according to claim 9, characterized in that the controller is also connected with an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222101581.0U CN218097947U (en) | 2022-08-10 | 2022-08-10 | System for improving accuracy of desulfurization pit ultrasonic liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222101581.0U CN218097947U (en) | 2022-08-10 | 2022-08-10 | System for improving accuracy of desulfurization pit ultrasonic liquid level meter |
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| Publication Number | Publication Date |
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| CN218097947U true CN218097947U (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222101581.0U Active CN218097947U (en) | 2022-08-10 | 2022-08-10 | System for improving accuracy of desulfurization pit ultrasonic liquid level meter |
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| CN (1) | CN218097947U (en) |
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- 2022-08-10 CN CN202222101581.0U patent/CN218097947U/en active Active
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