CN213779801U - Desulfurization slurry densimeter - Google Patents
Desulfurization slurry densimeter Download PDFInfo
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- CN213779801U CN213779801U CN202022272091.8U CN202022272091U CN213779801U CN 213779801 U CN213779801 U CN 213779801U CN 202022272091 U CN202022272091 U CN 202022272091U CN 213779801 U CN213779801 U CN 213779801U
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Abstract
The utility model discloses a desulfurization thick liquid densimeter, including desulfurization thick liquid holding vessel, desulfurization thick liquid inlet tube, the sparge water inlet tube, overflow thick liquid arranges thick liquid pipe, the compressed air inlet tube, pressure sensor, pressure density converter and waste liquid delivery pipe, desulfurization thick liquid inlet tube and sparge water inlet tube are connected at the top of desulfurization thick liquid holding vessel, overflow thick liquid arranges thick liquid pipe and compressed air inlet tube connection on the upper portion of desulfurization thick liquid holding vessel, waste liquid delivery pipe connects in the bottom of desulfurization thick liquid holding vessel, pressure sensor connects the bottom at desulfurization thick liquid holding vessel, pressure density converter is connected with pressure sensor. The utility model discloses a jam and the wearing and tearing problem of current desulfurization thick liquid densimeter have been stopped to contactless test method, can effectively guarantee the accuracy and the stability of desulfurization thick liquid densimeter, have extensive application and spreading value.
Description
Technical Field
The utility model relates to a desulfurization slurry densimeter.
Background
In order to meet the requirements of the emission limit of sulfur dioxide of an atmospheric pollutant, large power station boilers at home and abroad basically adopt a limestone-gypsum wet desulphurization process. Two key parameters concerned in the process operation are the pH value and the density of the desulfurization slurry, the former determines the efficiency of the desulfurization slurry, namely the emission concentration of the sulfur dioxide of an atmospheric pollutant is directly influenced, the latter indirectly influences the desulfurization efficiency and simultaneously directly determines the gypsum emission of the desulfurization slurry, and the two key parameters accurately obtain the parameters which influence the safe, stable, environment-friendly and economic operation of a desulfurization system.
At present, in a limestone-gypsum wet desulphurization process adopted by a desulphurization process of a large power station, the operation requirement of a desulphurization system can be basically met at the initial stage of the operation of a desulphurization slurry densimeter, but the densimeter has the problems of blockage and abrasion in different degrees along with the increase of the operation time, and cannot accurately and timely provide data reference for the desulphurization operation. Therefore, in order to avoid the problems of blockage and abrasion of the slurry densimeter in the limestone-gypsum wet desulphurization process and improve the accuracy and stability of the density of the desulphurization slurry, a safe and stable limestone-gypsum wet desulphurization slurry densimeter is required to be found in the limestone-gypsum wet desulphurization process of the power station.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the above-mentioned not enough that exists among the prior art, there are wearing and tearing, jam scheduling problem to current coal-fired unit limestone of power plant-gypsum wet flue gas desulfurization technology thick liquid densimeter, influence the accuracy of desulfurization thick liquid density value, provide a desulfurization thick liquid densimeter, improved accuracy, the reliability of desulfurization thick liquid density data.
The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides a desulfurization thick liquid densimeter, characterized by, arranges thick liquid pipe, compressed air inlet tube, pressure sensor, pressure density converter and waste liquid delivery pipe including desulfurization thick liquid holding vessel, desulfurization thick liquid inlet tube, sparge water inlet tube, overflow thick liquid, desulfurization thick liquid inlet tube and sparge water inlet tube are connected at the top of desulfurization thick liquid holding vessel, overflow thick liquid arranges thick liquid pipe and compressed air inlet tube connection on the upper portion of desulfurization thick liquid holding vessel, waste liquid delivery pipe connects in the bottom of desulfurization thick liquid holding vessel, pressure sensor connects the bottom at desulfurization thick liquid holding vessel, pressure density converter is connected with pressure sensor.
Furthermore, the desulfurization slurry inlet pipe, the flushing water inlet pipe, the overflow slurry discharging pipe, the compressed air inlet pipe and the waste liquid discharging pipe are respectively provided with a desulfurization slurry inlet electric automatic valve, a flushing water inlet electric automatic valve, an overflow slurry discharging electric automatic valve, a compressed air inlet electric automatic valve and a waste liquid discharging electric automatic valve.
Further, the desulfurization slurry densimeter is arranged outside the desulfurization absorption tower, and the desulfurization slurry inlet pipe is connected to the desulfurization absorption tower. The desulfurization slurry densimeter adopts an external type and indirect reading mode, the pressure sensor is used for reading the pressure data of the desulfurization slurry in the desulfurization slurry storage tank, the relation between the internal pressure intensity of the liquid and the depth is utilized for data conversion, and the pressure density converter is used for reading the density of the desulfurization slurry.
Further, since the volume of the slurry stored in the desulfurization slurry storage tank is constant, namely the height of the stored slurry is constant, the data change read by the pressure sensor is only caused by the slurry density change, and the accuracy of conversion between the data of the pressure density converter is ensured.
Furthermore, during the process of supplying and cleaning the desulfurization slurry in the desulfurization slurry storage tank, the electric automatic valve for discharging the overflow slurry is opened at the same time, so that the air in the desulfurization slurry storage tank is discharged and the excess desulfurization slurry is prevented; after the desulfurization slurry density finishes pressure data reading and the slurry in the desulfurization slurry storage tank is discharged, opening a washing water inlet electric automatic valve to clean the desulfurization slurry storage tank, and ensuring that no slurry remains in the desulfurization slurry storage tank; after the washing of desulfurization thick liquid holding vessel is accomplished to the sparge water, close overflow thick liquid and arrange the electronic automatic valve of thick liquid, open the electronic automatic valve of waste liquid discharge to open the electronic automatic valve of compressed air entry, compressed air sweeps desulfurization thick liquid holding vessel inner space, ensures that desulfurization thick liquid holding vessel does not have the waste liquid to remain, ensures the accuracy of follow-up desulfurization thick liquid density test data.
Compared with the prior art, the utility model, have following advantage and effect:
1. the utility model is used for online lime stone-gypsum wet flue gas desulfurization density test utilizes the physical principle of the inside pressure of liquid and degree of depth relation can accurate feedback desulfurization slurry density, for desulfurization system realizes that numerical control technique provides stable data and lays the basis.
2. The utility model discloses desulfurization slurry densimeter arranges the desulfurization absorption tower outward, and it is few to draw the thick liquid volume, and the desulfurization slurry inlet tube is minimum to the intensity influence of drawing the contact material.
3. The utility model discloses introduce the desulfurization thick liquid holding vessel with the thick liquid, impact force, wave, concentration gradient, turbulent influence when not receiving the inside mechanical stirring of desulfurization absorption tower in the measurement process, the liquid level of desulfurization thick liquid holding vessel is steady, and the numerical value that records is a stable average value all the time.
4. The utility model discloses a clean effect of desulfurization thick liquid holding vessel after sparge water and compressed air can ensure measuring at every turn avoids remaining of desulfurization thick liquid, ensures the degree of accuracy of test data.
5. The utility model discloses desulfurization slurry densimeter is because adopt external, and introduces the thick liquid volume less, has consequently avoided wearing and tearing, jam scheduling problem effectively, has increased life, has guaranteed the measuring accuracy.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the desulfurization slurry storage tank 1, the desulfurization slurry inlet pipe 2, the desulfurization slurry inlet electric automatic valve 3, the washing water inlet electric automatic valve 4, the washing water inlet pipe 5, the overflow slurry discharge pipe 6, the overflow slurry discharge electric automatic valve 7, the compressed air inlet pipe 8, the compressed air inlet electric automatic valve 9, the pressure sensor 10, the pressure density converter 11, the waste liquid discharge electric automatic valve 12, and the waste liquid discharge pipe 13.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples
Referring to fig. 1, in the present embodiment, a desulfurization slurry densimeter comprises a desulfurization slurry storage tank 1, a desulfurization slurry inlet pipe 2, a washing water inlet pipe 5, an overflow slurry discharging pipe 6, a compressed air inlet pipe 8, a pressure sensor 10, a pressure density converter 11 and a waste liquid discharging pipe 13, wherein the desulfurization slurry inlet pipe 2 and the washing water inlet pipe 5 are connected to the top of the desulfurization slurry storage tank 1, the overflow slurry discharging pipe 6 and the compressed air inlet pipe 8 are connected to the upper part of the desulfurization slurry storage tank 1, the waste liquid discharging pipe 13 is connected to the bottom of the desulfurization slurry storage tank 1, the pressure sensor 10 is connected to the bottom of the desulfurization slurry storage tank 1, and the pressure density converter 11 is connected to the pressure sensor 10; the desulfurization slurry inlet pipe 2, the washing water inlet pipe 5, the overflow slurry discharge pipe 6, the compressed air inlet pipe 8 and the waste liquid discharge pipe 13 are respectively provided with a desulfurization slurry inlet electric automatic valve 3, a washing water inlet electric automatic valve 4, an overflow slurry discharge electric automatic valve 7, a compressed air inlet electric automatic valve 9 and a waste liquid discharge electric automatic valve 12.
The specific embodiments of the process of the present invention and the density measurement of the entire densitometer are described in detail below:
1. the utility model discloses a lime stone-gypsum wet flue gas desulfurization tower is external, opens the electronic automatic valve of desulfurization thick liquid entry 3 and overflow thick liquid and arranges the electronic automatic valve of thick liquid 7, closes the electronic automatic valve of compressed air entry 9 and the electronic automatic valve of waste liquid discharge 12, and the desulfurization thick liquid is in desulfurization thick liquid holding vessel 1 is introduced through desulfurization thick liquid inlet tube 2.
2. After the desulfurization slurry storage tank 1 reaches the set liquid volume, the desulfurization slurry inlet electric automatic valve 3 and the overflow slurry discharging electric automatic valve 7 are closed, the desulfurization slurry in the desulfurization slurry storage tank 1 is stable, the pressure sensor 10 reads pressure data, the pressure sensor 10 transmits the pressure data to the pressure density converter 11, and the density of the separated slurry is deduced according to the physical principle calculation formula P = rho gh of the relation between the internal pressure and the depth of the liquid. The pressure sensor 10 and the pressure density converter 11 are conventional products.
3. After the test, the waste liquid discharge electric automatic valve 12 and the washing water inlet electric automatic valve 4 are opened, the slurry with the tested density is discharged through the waste liquid discharge pipe 13, and simultaneously washing water enters the desulfurization slurry storage tank 1 from the washing water inlet pipe 5 to wash the desulfurization slurry.
4. And after the washing water is washed, closing the washing water inlet electric automatic valve 4, opening the compressed air inlet electric automatic valve 9, and allowing compressed air to enter the desulfurization slurry storage tank 1 through the compressed air inlet pipe 8 to perform air purging on the desulfurization slurry storage tank 1.
5. And repeating the steps to test the density of the desulfurized slurry.
Those not described in detail in this specification are well within the skill of the art.
Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the scope of the present invention.
Claims (3)
1. A desulfurization slurry densimeter is characterized by comprising a desulfurization slurry storage tank (1), a desulfurization slurry inlet pipe (2), a flushing water inlet pipe (5), an overflow slurry discharging pipe (6), a compressed air inlet pipe (8), a pressure sensor (10), a pressure density converter (11) and a waste liquid discharging pipe (13), the desulfurization slurry inlet pipe (2) and the flushing water inlet pipe (5) are connected to the top of the desulfurization slurry storage tank (1), the overflow slurry discharging pipe (6) and the compressed air inlet pipe (8) are connected with the upper part of the desulfurization slurry storage tank (1), the waste liquid discharge pipe (13) is connected with the bottom of the desulfurization slurry storage tank (1), the pressure sensor (10) is connected with the bottom end of the desulfurization slurry storage tank (1), the pressure density converter (11) is connected with the pressure sensor (10).
2. The desulfurization slurry densitometer of claim 1, wherein the desulfurization slurry inlet pipe (2), the flushing water inlet pipe (5), the overflow slurry discharge pipe (6), the compressed air inlet pipe (8), and the waste liquid discharge pipe (13) are respectively provided with a desulfurization slurry inlet electric automatic valve (3), a flushing water inlet electric automatic valve (4), an overflow slurry discharge electric automatic valve (7), a compressed air inlet electric automatic valve (9), and a waste liquid discharge electric automatic valve (12).
3. The desulfurization slurry densitometer of claim 1, wherein the desulfurization slurry densitometer is located outside of a desulfurization absorption tower to which the desulfurization slurry inlet pipe (2) is connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022272091.8U CN213779801U (en) | 2020-10-13 | 2020-10-13 | Desulfurization slurry densimeter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022272091.8U CN213779801U (en) | 2020-10-13 | 2020-10-13 | Desulfurization slurry densimeter |
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| CN213779801U true CN213779801U (en) | 2021-07-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595627A (en) * | 2020-10-13 | 2021-04-02 | 华电电力科学研究院有限公司 | Intelligent desulfurization slurry densimeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595627A (en) * | 2020-10-13 | 2021-04-02 | 华电电力科学研究院有限公司 | Intelligent desulfurization slurry densimeter |
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