CN215448856U - Wet desulfurization slurry density measuring device - Google Patents
Wet desulfurization slurry density measuring device Download PDFInfo
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- CN215448856U CN215448856U CN202121506329.7U CN202121506329U CN215448856U CN 215448856 U CN215448856 U CN 215448856U CN 202121506329 U CN202121506329 U CN 202121506329U CN 215448856 U CN215448856 U CN 215448856U
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- 239000002002 slurry Substances 0.000 title claims abstract description 64
- 238000006477 desulfuration reaction Methods 0.000 title claims description 19
- 230000023556 desulfurization Effects 0.000 title claims description 19
- 238000005070 sampling Methods 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000003860 storage Methods 0.000 claims abstract description 13
- 238000011010 flushing procedure Methods 0.000 claims description 16
- 238000001739 density measurement Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 abstract description 14
- 238000005406 washing Methods 0.000 abstract description 11
- 239000010440 gypsum Substances 0.000 description 9
- 229910052602 gypsum Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 8
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005293 physical law Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a wet desulphurization slurry density measuring device, which comprises a sampling tube and a liquid level pressure intensity measuring device; the sampling tube is vertically arranged, and a sampling connecting tube is arranged on the side wall of the lower part of the sampling tube; the sample introduction connecting pipe is connected with a wet desulphurization slurry generating device; a first pressure measuring port and a second pressure measuring port which are different in height are arranged on the side wall of the sampling tube; a washing water storage funnel is arranged at the upper part of the sampling pipe; a washing water pipe is arranged at the top end of the washing water storage funnel; the bottom end of the sampling tube is provided with a discharge tube; the liquid level pressure measuring device is respectively connected with the first pressure measuring port and the second pressure measuring port. The utility model can solve the problems of high cost of measuring equipment, short service cycle, inaccurate measurement and the like in the prior art.
Description
Technical Field
The utility model relates to the technical field of wet desulphurization, in particular to a wet desulphurization slurry density measuring device.
Background
The absorption tower in the limestone-gypsum wet flue gas desulfurization process flow of the power plant is core equipment, harmful gases such as sulfur dioxide and the like are removed from flue gas in the absorption tower, and an operator controls the desulfurization efficiency by controlling the slurry parameters of the absorption tower, so that the emission of sulfur dioxide is reduced. Under the condition of reasonable control of the slurry parameters of the absorption tower, the desulfurization efficiency of the limestone-gypsum method flue gas desulfurization process reaches over 95 percent. The density of the gypsum slurry is an important item in the measurement of the thermal parameters of the absorption tower, and the control of the density of the slurry of the absorption tower is of great significance to the improvement of the desulfurization efficiency and the reduction of the dosage of the limestone slurry.
There are two main methods of measuring the density of gypsum slurries currently in use:
1. measuring by using a Coriolis principle densimeter: the gypsum slurry was passed through the resonating tube of a densitometer to measure the slurry density. The gypsum slurry contains gypsum crystal particles and the flow of the slurry through the resonating tubes of the densitometer necessarily causes wear on the tube walls, resulting in a limited useful life of the densitometer. To reduce wear, the gypsum slurry flow rate must be controlled, and the reduced flow rate causes plugging of the piping, which requires periodic cleaning of the plugged gypsum. The Coriolis principle densimeter has high manufacturing cost and service life of 1-2 years, and measurement quit caused by equipment investment updating and blockage clearing is a main problem in the use of the measuring method.
2. A plurality of pressure transmitters are arranged on the absorption tower: the measuring method is based on the physical law that liquid pressure is liquid level, liquid density and gravity acceleration, but the law is satisfied under the condition that liquid is static, an absorption tower is provided with a stirrer for preventing slurry from precipitating, a circulating pump with ultrahigh-magnification slurry circulation and oxidizing wind for oxidizing and introducing calcium sulfite into the slurry, the operation of the devices causes the complexity of the slurry state in the tower on one hand, and interferes the measurement of a pressure transmitter on the other hand, the measuring effect is influenced, and the obtained slurry density is inaccurate.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention aims to provide a wet desulfurization slurry density measuring device to solve the problems of high cost of measuring equipment, short service cycle, inaccurate measurement, etc. in the prior art.
The utility model provides a wet desulphurization slurry density measuring device, which comprises a sampling tube and a liquid level pressure intensity measuring device; the sampling tube is vertically arranged, and a sampling connecting tube is arranged on the side wall of the lower part of the sampling tube; the sample introduction connecting pipe is connected with a wet desulphurization slurry generating device; a first pressure measuring port and a second pressure measuring port which are different in height are arranged on the side wall of the sampling tube; a flushing water storage funnel is arranged at the upper part of the sampling tube; a flushing water pipe is arranged at the top end of the flushing water storage funnel; a discharge pipe is arranged at the bottom end of the sampling pipe; the liquid level pressure measuring device is respectively connected with the first pressure measuring port and the second pressure measuring port.
In addition, it is preferable that the liquid level pressure measuring means includes a first pressure transmitter and a second pressure transmitter; the first pressure transmitter is connected with the first pressure measuring port; the second pressure transmitter is connected with the second pressure measuring port.
Further, it is preferable that the liquid level pressure measuring means includes a capillary differential pressure transmitter; a first capillary of the capillary differential pressure transmitter is connected with the first pressure measuring port; and a second capillary of the capillary differential pressure transmitter is connected with the second pressure measuring port.
Further, it is preferable that a pit is provided at the bottom end of the discharge pipe.
In addition, it is preferable that a flush valve is provided in the flush water pipe; and/or, an outlet valve is provided on the discharge pipe; and/or an inlet valve is arranged on the sample introduction connecting pipe.
Further, it is preferable that the outlet valve is a solenoid valve; and/or the inlet valve is a solenoid valve.
In addition, it is preferable that an overflow pipe is provided at a top end of the washing water storage funnel
According to the technical scheme, the device for measuring the density of the wet desulphurization slurry provided by the utility model has the advantages that the slurry in the device for generating the wet desulphurization slurry flows into the vertically arranged sampling tube by plugging the discharge tube, the sample introduction connecting tube is sealed when the sampling tube is filled with the slurry, so that the sampling tube is in an empty state, bubbles in the slurry can be discharged after the slurry is kept still in the sampling tube for a period of time, and the accuracy of converting the differential pressure value measured by the liquid level pressure measuring device into the density is ensured; after the measurement is finished, the slurry is discharged and removed by opening the discharge pipe, and the sampling pipe is washed from top to bottom through the washing water pipe, so that the service life of the sampling pipe is prolonged, and the cost is reduced; the utility model has the advantages of simple structure, reasonable design, low cost, high measurement accuracy and the like.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the utility model is more fully understood. In the drawings:
fig. 1 is a schematic structural diagram of a wet desulfurization slurry density measuring apparatus according to an embodiment of the present invention.
Wherein the reference numerals include: 1-sampling pipe, 11-sample introduction connecting pipe, 12-first pressure measuring port, 13-second pressure measuring port, 14-discharge pipe, 15-outlet valve, 16-inlet valve, 2-wet desulphurization slurry generating device, 3-flushing water storage funnel, 31-flushing water pipe, 32-flushing valve, 33-overflow pipe, 41-first pressure transmitter, 42-second pressure transmitter and 5-pit.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
Aiming at the problems of high manufacturing cost, short service cycle, inaccurate measurement and the like of the measurement equipment in the prior art, the utility model provides the wet desulphurization slurry density measurement device.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In order to explain the structure of the wet desulfurization slurry density measuring apparatus provided by the present invention, fig. 1 shows the structure of the wet desulfurization slurry density measuring apparatus according to the embodiment of the present invention.
As shown in FIG. 1, the device for measuring the density of wet desulphurization slurry provided by the utility model comprises a sampling tube 1 and a liquid level pressure measuring device; wherein, the sampling tube 1 is vertically arranged, and a sampling connecting tube 11 is arranged on the side wall of the lower part of the sampling tube 1; the sample introduction connecting pipe 11 is connected with the wet desulphurization slurry generation device 2; a first pressure measuring port 12 and a second pressure measuring port 13 which have different heights are arranged on the side wall of the sampling tube 1; a washing water storage funnel 3 is arranged at the upper part of the sampling pipe 11; a washing water pipe 31 is arranged at the top end of the washing water storage funnel 3; a discharge pipe 14 is arranged at the bottom end of the sampling pipe 1; the liquid level pressure measuring device is connected with the first pressure measuring port 12 and the second pressure measuring port 13 respectively.
The slurry in the wet desulphurization slurry generating device 2 flows into the vertically arranged sampling tube 1 through the plugging discharge tube 14, when the sampling tube 1 is full of slurry, the sampling connection tube 11 is sealed, so that the sampling tube 1 is in an empty state, and bubbles in the slurry can be discharged after the slurry is kept still in the sampling tube 1 for a period of time, so that the accuracy of converting the differential pressure value obtained by measuring through the liquid level pressure intensity measuring device into density is ensured; after the measurement is finished, the slurry is discharged and removed by opening the discharge pipe 14, and the sampling pipe 1 is washed from top to bottom through the washing water pipe 31, so that the service life of the sampling pipe 1 is prolonged, and the cost is reduced; the utility model has the advantages of simple structure, reasonable design, low cost, high measurement accuracy and the like.
As a preferred aspect of the present invention, the liquid level pressure measuring device includes a first pressure transmitter 41 and a second pressure transmitter 42; the first pressure transmitter 41 is connected with the first pressure measurement port 12; the second pressure transmitter 42 is connected to the second pressure measurement port 13.
The pressure at different heights of the sampling tube 1 can be measured by the first pressure transmitter 41 and the second pressure transmitter 42, so that the density of the slurry can be calculated according to the liquid pressure (liquid level) and the liquid density (gravity acceleration), wherein the liquid level is equal to the height difference between the first pressure measuring port 12 and the second pressure measuring port 13. Since the slurry is stationary and stable in the sampling tube 1, the measured value is accurate and the measuring method is scientific. No special equipment is needed to be purchased, the product can be manufactured on site, the manufacturing cost is low, and the service cycle is long.
As a preferred scheme of the utility model, the liquid level pressure measuring device comprises a capillary differential pressure transmitter; a first capillary of the capillary differential pressure transmitter is connected with a first pressure measuring port 12; the second capillary of the capillary differential pressure transmitter is connected to a second pressure measurement port 13. The pressure intensities of the sampling tube 1 at different heights can be obtained by a capillary differential pressure transmitter, so that the slurry density can be calculated.
In a preferred embodiment of the utility model, a pit 5 is provided at the bottom end of the discharge pipe 14. Used for treating waste liquid.
As a preferred embodiment of the present invention, a flush valve 32 is provided on the flush water pipe 31; and/or, an outlet valve 15 is provided on the discharge pipe 14; and/or, an inlet valve 16 is arranged on the sample connection pipe 11. The valve is convenient to control flushing, liquid discharging and liquid feeding.
As a preferable aspect of the present invention, the outlet valve 15 is a solenoid valve; and/or, the inlet valve 16 is a solenoid valve. The periodic detection can be automatically completed by setting the time for opening and closing the outlet valve 15 and the inlet valve 16, so that the whole process is more automatic. The automatic valve opening and closing time can be set in the control system according to the actual field test, and the automation of sampling and measurement can be completely realized.
In a preferred embodiment of the present invention, an overflow pipe 33 is provided at the top end of the washing water storage funnel 3. When the flushing water is too fast in the flushing process, the water flow in the flushing water storage funnel 3 is discharged.
According to the wet desulphurization slurry density measuring device provided by the utility model, the slurry in the wet desulphurization slurry generating device flows into the vertically arranged sampling tube through the plugging discharge tube, when the sampling tube is full of slurry, the sample injection connecting tube is sealed, so that the sampling tube is in an empty state, bubbles in the slurry can be discharged after the slurry is kept still in the sampling tube for a period of time, and the accuracy of converting the differential pressure value measured by the liquid level pressure measuring device into the density is ensured; after the measurement is finished, the slurry is discharged and removed by opening the discharge pipe, and the sampling pipe is washed from top to bottom through the washing water pipe, so that the service life of the sampling pipe is prolonged, and the cost is reduced; the utility model has the advantages of simple structure, reasonable design, low cost, high measurement accuracy and the like.
The wet desulfurization slurry density measuring apparatus proposed according to the present invention is described above by way of example with reference to the accompanying drawings. However, it will be understood by those skilled in the art that various modifications may be made to the wet desulfurization slurry density measuring apparatus of the present invention without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.
Claims (7)
1. A wet desulphurization slurry density measuring device is characterized by comprising a sampling tube and a liquid level pressure intensity measuring device; wherein,
the sampling tube is vertically arranged, and a sampling connecting tube is arranged on the side wall of the lower part of the sampling tube; the sample introduction connecting pipe is connected with a wet desulphurization slurry generating device; a first pressure measuring port and a second pressure measuring port which are different in height are arranged on the side wall of the sampling tube; a flushing water storage funnel is arranged at the upper part of the sampling tube; a flushing water pipe is arranged at the top end of the flushing water storage funnel; a discharge pipe is arranged at the bottom end of the sampling pipe;
the liquid level pressure measuring device is respectively connected with the first pressure measuring port and the second pressure measuring port.
2. The wet desulfurization slurry density measurement apparatus according to claim 1,
the liquid level pressure measuring device comprises a first pressure transmitter and a second pressure transmitter;
the first pressure transmitter is connected with the first pressure measuring port;
the second pressure transmitter is connected with the second pressure measuring port.
3. The wet desulfurization slurry density measurement apparatus according to claim 1,
the liquid level pressure measuring device comprises a capillary differential pressure transmitter;
a first capillary of the capillary differential pressure transmitter is connected with the first pressure measuring port;
and a second capillary of the capillary differential pressure transmitter is connected with the second pressure measuring port.
4. The wet desulfurization slurry density measurement apparatus according to claim 1,
and a pit is arranged at the bottom end of the discharge pipe.
5. The wet desulfurization slurry density measurement apparatus according to claim 1,
a flushing valve is arranged on the flushing water pipe; and/or the presence of a gas in the gas,
an outlet valve is provided on the discharge pipe; and/or the presence of a gas in the gas,
an inlet valve is arranged on the sample introduction connecting pipe.
6. The wet desulfurization slurry density measurement apparatus according to claim 5,
the outlet valve is an electromagnetic valve; and/or the presence of a gas in the gas,
the inlet valve is an electromagnetic valve.
7. The wet desulfurization slurry density measurement apparatus according to claim 1,
an overflow pipe is arranged at the top end of the flushing water storage funnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121506329.7U CN215448856U (en) | 2021-07-02 | 2021-07-02 | Wet desulfurization slurry density measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121506329.7U CN215448856U (en) | 2021-07-02 | 2021-07-02 | Wet desulfurization slurry density measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215448856U true CN215448856U (en) | 2022-01-07 |
Family
ID=79714711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121506329.7U Active CN215448856U (en) | 2021-07-02 | 2021-07-02 | Wet desulfurization slurry density measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215448856U (en) |
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2021
- 2021-07-02 CN CN202121506329.7U patent/CN215448856U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220826 Address after: 100176, No. 1, Kangding street, Daxing District economic and Technological Development Zone, Beijing, B2 Patentee after: CHINA HUAYE GROUP Co.,Ltd. Patentee after: TIANJIN HUAYE ENGINEERING DESIGN Co.,Ltd. Address before: 100085 block B2, 1 Kangding street, economic and Technological Development Zone, Daxing District, Beijing Patentee before: CHINA HUAYE GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |