Desulfurizing absorption tower slurry density and PH measuring device
By adopting automatic periodic slurry extraction and flushing gate detection functions in the slurry density and PH measurement device of the desulfurization absorption tower, the measurement error and blockage problems of existing devices are solved, and the accurate measurement of slurry density and PH value and equipment stability are achieved. Reduces power consumption and wear.
Patent Information
- Application Number
- CN202420566050.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-03-22
AI Technical Summary
The existing desulfurization absorption tower slurry density and PH measurement devices have problems such as large measurement errors, easy sensor damage, difficulty in cleaning up, and lax closing of the flushing water door, which affects the measurement accuracy and equipment stability.
Using devices including liquid inlet pipe, control box, manual valve, differential pressure transmitter and other components, the measurement of the pressure at different heights is automatically periodically extracted slurry, measured pressure at different heights, and combined with the flushing door closing detection function to ensure measurement accuracy and Equipment stability.
Eliminate errors caused by slurry fluctuations and bubbles, extend the service life of the equipment, prevent the density meter from being blocked and errored, ensure accurate measurement of slurry density and pH, and reduce power consumption and wear.
Smart Images
Figure CN222337003U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solid-liquid mixture density and pH value measurement, in particular to a desulfurization absorption tower slurry density and pH measurement device. Background Art
[0002] The density and pH value of the absorber slurry are important parameters for the operation of the absorber. It is very important to ensure the accurate measurement of the slurry density and pH value and long-term stable operation. If the slurry density is too low, the desulfurizer's ability to absorb SO2 will decrease, and the gypsum crystals will not be easy to crystallize; if the slurry density is too high, the gypsum crystals will wrap the desulfurizer, making the desulfurizer unable to play a role and the desulfurization efficiency will decrease. Reasonable control of the slurry density can effectively utilize the limestone powder desulfurizer, ensure the quality of the gypsum slurry, and greatly reduce the power consumption and wear of the circulation pump, gypsum pump, and agitator, thereby effectively reducing the amount of limestone powder, reducing power consumption, and improving desulfurization efficiency.
[0003] The existing desulfurization absorption tower slurry density and pH measurement devices have the following technical problems: due to the operation of the equipment, the slurry in the tower is in a suspended, rotating, or even bubble-containing state, resulting in large and uncertain measurement errors, and the sensor elements are worn by the gypsum crystals in the slurry, and are easily damaged after long-term use, resulting in increased costs; even if flushing water is frequently added, the blockage problem cannot be solved, and it is difficult to clean after blockage. The density meter often stops running, and if flushing water needs to be added frequently, the flushing water gate may not be closed tightly. At this time, the density meter measures the density of the mixture of slurry and flushing water, and the measurement result is wrong, and this defect cannot be discovered. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a desulfurization absorption tower slurry density and pH measuring device.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a desulfurization absorption tower slurry density and pH measuring device, including a liquid inlet pipe and a control box, a manual valve is provided at the end of the liquid inlet pipe, a slurry pipe is provided at the end of the manual valve, a first valve is provided at the end of the slurry pipe, a three-way pipe is provided at the end of the first valve, a second valve is provided at the end of the three-way pipe, a fourth valve is provided at the other end of the three-way pipe, a connecting pipe is provided at the end of the fourth valve, a sample tube is provided on the surface of the connecting pipe, a circulation pool is provided at the end of the sample tube, an electrode is plugged into the surface of the circulation pool, a third valve is provided at the end of the sample tube, a discharge pipe is provided at the end of the third valve, and a differential pressure transmitter is provided on the side of the connecting pipe.
[0006] Preferably, a flange is provided at the end of the liquid inlet pipe, and the liquid inlet pipe is fixedly connected to the manual valve via the flange.
[0007] Preferably, a fifth valve is provided on the side of the differential pressure transmitter, and a sixth valve is provided on the side of the differential pressure transmitter.
[0008] Preferably, the fifth valve is fixedly connected to a position of the sample tube near the bottom, and the sixth valve is fixedly connected to a position of the sample tube near the top.
[0009] Preferably, a flushing pipe is provided on the surface of the slurry pipe, and the ends of the flushing pipe are fixedly connected to the fifth valve and the sixth valve.
[0010] Preferably, an overflow pipe is provided at the bottom of the circulation pool, and the lowest end horizontal line of the overflow pipe is the same as the lowest end horizontal line of the discharge pipe.
[0011] Preferably, the overflow pipe is arranged at an angle downward at the bottom of the circulation pool, and the overflow pipe is located at one side of the discharge pipe.
[0012] The advantages and effects of the utility model are as follows: In the utility model, the first valve, the second valve, the third valve, the fourth valve and the differential pressure transmitter are used to automatically and periodically extract the slurry from the absorption tower. After a short period of standing, the pressure at different heights is measured to calculate the density, thereby eliminating errors caused by factors such as slurry fluctuations and mixed bubbles. The measurement method is more rigorous and can be used stably for a long time without the problem of component wear.
[0013] In the utility model, the first valve, the second valve and the fourth valve are adopted, and the density of the slurry in the absorption tower changes slowly. The density is measured once every 60 minutes. After the measurement is completed, the display and record are kept, which is equivalent to continuous measurement. After each measurement, a water flushing is performed to ensure that the pipeline is not blocked, and the device has a detection function for the flushing water gate not being closed tightly. Once the flushing water gate is not closed tightly, the instrument reports a fault and exits the measurement. It can continue to be put into operation only after the defect is eliminated, so as to prevent the slurry from mixing with the flushing water and causing an erroneous density measurement result. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is an axonometric view of the utility model;
[0015] Figure 2 It is a front view of the utility model;
[0016] Figure 3 For this utility model Figure 1 A magnified view of middle;
[0017] Figure 4 This is a pipeline diagram of the utility model.
[0018] Legend:
[0019] 1. Liquid inlet pipe; 2. Manual valve; 3. First valve; 4. Second valve; 5. Third valve; 6. Sample tube; 7. Circulation pool; 8. Electrode; 9. Control box; 10. Overflow pipe; 11. Fourth valve; 12. Discharge pipe; 13. Slurry pipe; 14. Tee pipe; 15. Flushing pipe; 16. Connecting pipe; 17. Fifth valve; 18. Sixth valve; 19. Differential pressure transmitter. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, the utility model is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.
[0021] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment 1
[0022] Reference Figure 1-4The desulfurization absorption tower slurry density and pH measuring device comprises an inlet pipe 1 and a control box 9. The operation of the device is controlled by the control box 9. A manual valve 2 is provided at the end of the inlet pipe 1. A flange is provided at the end of the inlet pipe 1. The inlet pipe 1 and the manual valve 2 are fixedly connected through the flange. The slurry is taken from the absorption tower and enters the device through the inlet pipe 1. The circulation of the slurry can be controlled by the manual valve 2. A slurry pipe 13 is provided at the end of the manual valve 2. A first valve 3 is provided at the end of the slurry pipe 13. The first valve 3 is an inlet valve of the slurry. The end of the first valve 3 is provided A three-way pipe 14 is used to connect the first valve 3, the second valve 4 and the fourth valve 11. The end of the three-way pipe 14 is provided with a second valve 4, and the second valve 4 is connected with process water to clean the device. The other end of the three-way pipe 14 is provided with a fourth valve 11, and the fourth valve 11 is a backwash valve. A connecting pipe 16 is provided at the end of the fourth valve 11. A sample tube 6 is provided on the surface of the connecting pipe 16. The slurry is circulated into the circulation pool 7 through the sample tube 6. The end of the sample tube 6 is provided with a circulation pool 7, and the bottom of the circulation pool 7 is provided with an overflow pipe 10, and the lowest end horizontal line of the overflow pipe 10 is the same as the lowest end horizontal line of the discharge pipe 12, the overflow liquid in the circulation pool 7 is discharged through the overflow pipe 10, the surface of the circulation pool 7 is plugged with an electrode 8, and the pH value of the slurry is measured by the electrode 8, the end of the sample tube 6 is provided with a third valve 5, the third valve 5 is a discharge valve, and the end of the third valve 5 is provided with a discharge pipe 12, and the slurry or flushing water is discharged through the discharge pipe 12, and the side of the connecting pipe 16 is provided with a differential pressure transmitter 19, and the density of the slurry flowing through the circulation pool 7 is measured by the differential pressure transmitter 19. A fifth valve 17 is provided on the side of the differential pressure transmitter 19, a sixth valve 18 is provided on the side of the differential pressure transmitter 19, the fifth valve 17 is fixedly connected to the sample tube 6 near the bottom, the sixth valve 18 is fixedly connected to the sample tube 6 near the top, a flushing pipe 15 is provided on the surface of the slurry tube 13, the ends of the flushing pipe 15 are fixedly connected to the fifth valve 17 and the sixth valve 18, the fifth valve 17 and the sixth valve 18 are connected to the flushing water interface of the differential pressure transmitter 19, and are connected to the slurry tube 13, so as to facilitate flushing of the pipeline.
[0023] Open the first valve 3 and the fourth valve 11, the slurry flows out from the lower discharge pipe 12 of the circulation pool 7, and the pH value is continuously measured through the electrode 8. Close the first valve 3, and the density of the slurry is measured through the differential pressure transmitter 19 after standing. Open the third valve 5, and the slurry flows out from the lower discharge pipe 12 of the circulation pool 7. The slurry is drained. Close the third valve 5, open the second valve 4, and connect the process water. The process water flows out from the lower discharge pipe 12 of the circulation pool 7 to clean the device. Close the second valve 4, open the third valve 5, and the process water flows out from the lower discharge pipe 12 of the circulation pool 7 to drain the flushing water.
[0024] Repeat the above operation, perform periodic sampling differential pressure density measurement and continuous pH value measurement, automatically and periodically extract the absorption tower slurry, measure the pressure at different heights to calculate the density after a short period of standing, and eliminate errors caused by slurry fluctuations and bubble inclusions. The measurement method is more rigorous and can be used stably for a long time without component wear problems.
[0025] Open the first valve 3 and the second valve 4, close the fourth valve 11, flush the slurry pipe 13 to prevent pipeline blockage. The density of the slurry in the absorption tower changes slowly and is measured every 60 minutes. The display and record are kept after the measurement is completed, which is equivalent to continuous measurement. A water flush is performed after each measurement to ensure that the pipeline is not blocked. The device has a detection function for the fourth valve 11 not being closed tightly. Once the fourth valve 11 is not closed tightly, the instrument reports a fault and exits the measurement. It can continue to be put into operation only after the defect is eliminated to prevent the slurry from mixing with the flushing water and causing an erroneous density measurement result. Open the second valve 4. After the process water flows out from the lower discharge pipe 12 of the circulation pool 7, close the second valve 4 and complete the density and pH value verification through the differential pressure transmitter 19 and the electrode 8. Specific embodiment 2
[0026] Reference Figure 1-4 Under the premise of satisfying the above structure, the flushing water is passed through the flushing pipe 15 through the fifth valve 17 and the sixth valve 18 to perform additional flushing on the pipeline, thereby ensuring the circulation of the pipeline and improving the practicality of the device.
[0027] In summary: the first valve 3, the second valve 4, the third valve 5, the fourth valve 11 and the differential pressure transmitter 19 are used to realize automatic periodic extraction of the absorption tower slurry. After a short period of standing, the pressure at different heights is measured to calculate the density, eliminating errors caused by factors such as slurry fluctuations and mixed bubbles. The measurement method is more rigorous and can be used stably for a long time, and there is no problem of component wear. The first valve 3, the second valve 4 and the fourth valve 11 are used to realize a slow change in the density of the absorption tower slurry. The measurement is performed once every 60 minutes, and the display and record are maintained after the measurement is completed, which is equivalent to continuous measurement. A water flush is performed after each measurement is completed to ensure that the pipeline is not blocked, and the device has a detection function for the flushing water gate not being closed tightly. Once the flushing water gate is not closed tightly, the instrument reports a fault and exits the measurement. It can continue to be put into operation only after the defect is eliminated to prevent the slurry from mixing with the flushing water and causing an erroneous density measurement result.
[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A desulfurization absorption tower slurry density and pH measurement device, comprising a liquid inlet pipe (1) and a control box (9), characterized in that: A manual valve (2) is provided at the end of the liquid inlet pipe (1), a slurry pipe (13) is provided at the end of the manual valve (2), a first valve (3) is provided at the end of the slurry pipe (13), a three-way pipe (14) is provided at the end of the first valve (3), a second valve (4) is provided at the end of the three-way pipe (14), a fourth valve (11) is provided at the other end of the three-way pipe (14), a connecting pipe (16) is provided at the end of the fourth valve (11), a sample tube (6) is provided on the surface of the connecting pipe (16), a circulation pool (7) is provided at the end of the sample tube (6), an electrode (8) is plugged onto the surface of the circulation pool (7), a third valve (5) is provided at the end of the sample tube (6), a discharge pipe (12) is provided at the end of the third valve (5), and a differential pressure transmitter (19) is provided on the side of the connecting pipe (16).
2. The desulfurization absorption tower slurry density and pH measuring device according to claim 1, characterized in that: The end of the liquid inlet pipe (1) is provided with a flange, and the liquid inlet pipe (1) is fixedly connected to the manual valve (2) via the flange.
3. The desulfurization absorption tower slurry density and pH measuring device according to claim 1, characterized in that: A fifth valve (17) is provided on the side of the differential pressure transmitter (19), and a sixth valve (18) is provided on the side of the differential pressure transmitter (19).
4. The desulfurization absorption tower slurry density and pH measuring device according to claim 3 is characterized in that: The fifth valve (17) is fixedly connected to a position of the sample tube (6) near the bottom, and the sixth valve (18) is fixedly connected to a position of the sample tube (6) near the top.
5. The desulfurization absorption tower slurry density and pH measuring device according to claim 1, characterized in that: A flushing pipe (15) is provided on the surface of the slurry pipe (13), and the ends of the flushing pipe (15) are fixedly connected to the fifth valve (17) and the sixth valve (18).
6. The desulfurization absorption tower slurry density and pH measuring device according to claim 1, characterized in that: An overflow pipe (10) is provided at the bottom of the circulation pool (7), and the lowest end horizontal line of the overflow pipe (10) is the same as the lowest end horizontal line of the discharge pipe (12).
7. The desulfurization absorption tower slurry density and pH measuring device according to claim 6, characterized in that: The overflow pipe (10) is arranged at an angle downward at the bottom of the circulation pool (7), and the overflow pipe (10) is located on one side of the discharge pipe (12).