CN113953101A - Water sample pretreatment system for desulfurization slurry analysis instrument - Google Patents
Water sample pretreatment system for desulfurization slurry analysis instrument Download PDFInfo
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- CN113953101A CN113953101A CN202111372382.7A CN202111372382A CN113953101A CN 113953101 A CN113953101 A CN 113953101A CN 202111372382 A CN202111372382 A CN 202111372382A CN 113953101 A CN113953101 A CN 113953101A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
- B04B15/06—Other accessories for centrifuges for cleaning bowls, filters, sieves, inserts, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/04—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers
- B04B5/0407—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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Abstract
The invention discloses a water sample pretreatment system for a desulfurization slurry analysis instrument, wherein a No. 1 position, a No. 2 position, a No. 3 position and a No. 4 position are sequentially arranged on a centrifuge main body along the circumferential direction, centrifugal cups are respectively arranged on the No. 1 position, the No. 2 position, the No. 3 position and the No. 4 position, a water inlet pipeline is communicated with an inlet of a flow meter through a first flow regulating valve, an outlet of the flow meter is communicated with an inlet of the centrifugal cup on the No. 1 position, an outlet of the centrifugal cup on the No. 2 position is communicated with an inlet of an analysis instrument sample feeding pump, an outlet of the analysis instrument sample feeding pump is communicated with an inlet of a water sample analysis instrument, an outlet of a flushing water tank is communicated with an inlet of the centrifugal cup on the No. 3 position through a flushing water pump, and an ultrasonic generator is connected with the centrifugal cup on the No. 3 position; the controller is connected with the ultrasonic generator, the water sample analysis instrument, the flushing water pump, the flowmeter, the first flow regulating valve, the analysis instrument sample injection pump and the centrifuge body, and suspended matters and sludge in the slurry can be removed by the system.
Description
Technical Field
The invention belongs to the field of power generation technology water quality monitoring, and relates to a water sample pretreatment system for a desulfurization slurry analysis instrument.
Background
The pH value and the chloride ion content in the desulfurization slurry are the most main monitoring and controlling indexes in the operation of the desulfurization device, and the concentration of limestone slurry sent into the desulfurization tower, the flow of the slurry and the slurry discharge amount can be accurately controlled by accurately monitoring the pH value and the chloride ion content of the slurry, so that the desulfurization efficiency of the desulfurization tower is ensured, the limestone consumption is reduced, and the safe and economic operation of the device is ensured.
At present, the pH value of the desulfurization slurry of the power plant is monitored on line in real time through an on-line pH meter, but because the desulfurization slurry has complex components and contains a large amount of limestone particles and other solid impurities, the influence of the erosion on a pH electrode is large, so that the measurement accuracy of the on-line pH meter is low, the service life is short, the electrode needs to be replaced generally about 3 months, and the cost is high; on the other hand, the chlorine ions in the desulfurization slurry are sampled regularly by a laboratory worker every day, and are measured by a manual analysis method, so that continuous online monitoring cannot be realized, wherein one important reason is that the desulfurization slurry has complex components, contains a large amount of suspended matters and sludge, and can greatly influence the measurement accuracy and the service life of an instrument. Therefore, a water sample pretreatment system is constructed, interference factors such as suspended matters and sludge in the slurry are removed, and the problems can be effectively solved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a water sample pretreatment system for a desulfurization slurry analysis meter, which can remove suspended substances and sludge in slurry.
In order to achieve the purpose, the water sample pretreatment system of the desulfurization slurry analysis instrument comprises a first flow regulating valve, a flow meter, an analysis instrument sample injection pump, a water sample analysis instrument, a flushing water tank, an ultrasonic generator, a flushing water pump, a controller and a centrifuge main body;
the centrifugal machine main body is sequentially provided with a No. 1 position, a No. 2 position, a No. 3 position and a No. 4 position along the circumferential direction, wherein the No. 1 position, the No. 2 position, the No. 3 position and the No. 4 position are respectively provided with a centrifugal cup, a water inlet pipeline is communicated with an inlet of a flow meter through a first flow regulating valve, an outlet of the flow meter is communicated with an inlet of the centrifugal cup on the No. 1 position, an outlet of the centrifugal cup on the No. 2 position is communicated with an inlet of an analysis instrument sample injection pump, an outlet of the analysis instrument sample injection pump is communicated with an inlet of a water sample analysis instrument, an outlet of a flushing water tank is communicated with an inlet of the centrifugal cup on the No. 3 position through a flushing water pump, and an ultrasonic generator is connected with the centrifugal cup on the No. 3 position;
the controller is connected with the ultrasonic generator, the water sample analysis instrument, the flushing water pump, the flowmeter, the first flow regulating valve, the analysis instrument sample injection pump and the centrifuge main body.
The centrifugal cup on the No. 1 position, the centrifugal cup on the No. 2 position, the centrifugal cup on the No. 3 position and the centrifugal cup on the No. 4 position are connected through a working rod.
The water sample analyzer comprises a pH analyzer, a conductivity analyzer, a chloride ion analyzer, a sulfate radical analyzer, a sulfite radical analyzer and an ion chromatograph.
The outlet of the centrifugal cup on the No. 3 position is communicated with the inlet of the drain valve, and the controller is connected with the drain valve.
No. 1 position, No. 2 position, No. 3 position and No. 4 position distribute along anticlockwise in proper order.
The flow control valve also comprises a second flow regulating valve, and the second flow regulating valve is communicated with the outlet of the first flow regulating valve.
The invention has the following beneficial effects:
when the water sample pretreatment system for the desulfurization slurry analysis instrument is specifically operated, slurry is firstly sent into a centrifugal cup A on a 4 th position, solid-liquid separation of the slurry is realized under the action of centrifugal force, the centrifugal cup A is rotated to a 5 th position, supernatant in the centrifugal cup A enters the water sample analysis instrument for analysis through an analysis instrument sample injection pump, after the instrument sample injection is finished, the centrifugal cup A is rotated to a 6 th position, and sediments at the bottom of the centrifugal cup A are cleaned through ultrasonic waves and a flushing water pump so as to remove suspended matters and sludge in the slurry, improve the measurement accuracy of the water sample analysis instrument and prolong the service life of the water sample analysis instrument.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is a first flow regulating valve, 2 is a second flow regulating valve, 3 is a flow meter, 4 is a number 1 position, 5 is a number 2 position, 6 is a number 3 position, 7 is a number 4 position, 8 is an analysis instrument sample injection pump, 9 is a water sample analysis instrument, 10 is a flushing water tank, 11 is an ultrasonic generator, 12 is a flushing water pump, 13 is a blow-off valve, 14 is a controller, and 15 is a centrifuge main body;
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the invention. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1, the water sample pretreatment system of the desulfurization slurry analyzer of the present invention includes a first flow regulating valve 1, a second flow regulating valve 2, a flow meter 3, an analyzer sample pump 8, a water sample analyzer 9, a flush water tank 10, an ultrasonic generator 11, a flush water pump 12, a blowdown valve 13, a controller 14, and a centrifuge body 15;
the centrifuge body 15 is sequentially provided with a No. 1 position 4, a No. 2 position 5, a No. 3 position 6 and a No. 4 position 7 along the circumferential direction, wherein the No. 1 position 4, the No. 2 position 5, the No. 3 position 6 and the No. 4 position 7 are respectively provided with a centrifugal cup, a water inlet pipeline is communicated with the inlet of the second flow regulating valve 2 and the inlet of the flow meter 3 through the first flow regulating valve 1, the outlet of the flow meter 3 is communicated with the inlet of the centrifugal cup on the No. 1 position 4, the outlet of the centrifugal cup on the No. 2 position 5 is communicated with the inlet of the analysis instrument sample pump 8, the outlet of the analysis instrument sample pump 8 is communicated with the inlet of the water sample analysis instrument 9, the outlet of the flushing water tank 10 is communicated with the inlet of the centrifugal cup on the No. 3 position 6 through the flushing water pump 12, and the outlet of the centrifugal cup on the No. 3 position 6 is communicated with the inlet of the blowdown valve 13;
the ultrasonic generator 11 is connected with the centrifugal cup on the No. 3 position 6;
the controller is connected with an ultrasonic generator 11, a water sample analysis instrument 9, a flushing water pump 12, a blow-down valve 13, a flowmeter 3, a first flow regulating valve 1, a second flow regulating valve 2, an analysis instrument sample pump 8 and a centrifuge body 15.
The centrifugal cup on No. 1 position 4, the centrifugal cup on No. 2 position 5, the centrifugal cup on No. 3 position 6 and the centrifugal cup on No. 4 position 7 are connected through the working rod, can carry out the rotation under the different rotational speeds according to the setting value, under the effect of centrifugal force, make the thick liquid reach solid-liquid separation.
The water sample analyzer 9 includes a pH analyzer, a conductivity analyzer, a chloride ion analyzer, a sulfate radical analyzer, a sulfite radical analyzer, and an ion chromatograph.
The method is not only suitable for the pretreatment of the desulfurization slurry, but also suitable for the pretreatment of other water samples with higher turbidity.
The specific working process of the invention is as follows:
the centrifugal rotation speed, the centrifugal time, the sample introduction time interval and the like of the centrifuge main body 15 are set through the controller 14, after the start system is set, the first flow regulating valve 1 and the second flow regulating valve 2 are automatically opened, the centrifuge cup on the No. 1 position 4 is set as the centrifuge cup A, the slurry enters the centrifuge cup A, the centrifuge cup A is filled with the slurry at the set sample introduction time, then the first flow regulating valve 1 and the second flow regulating valve 2 are automatically closed, the centrifuge main body 15 is started, the centrifuge cup A rotates around the central shaft at a high speed, after the rotation speed and the time are set, the centrifuge main body 15 is stopped, the position of the centrifuge cup A is not changed, the slurry in the centrifuge cup A realizes solid-liquid separation under the centrifugal force, then the centrifuge main body 15 rotates 90 degrees anticlockwise, so that the centrifuge cup A is positioned on the No. 2 position 5, namely the centrifuge cup A is communicated with the analysis instrument pump 8, the sample injection pump 8 of the analysis instrument is started, supernatant in the centrifugal cup A enters the water sample analysis instrument 9 through the sample injection pump 8 of the analysis instrument for analysis, after the sample injection of the instrument is finished, the centrifuge body 15 rotates 90 degrees anticlockwise around the central shaft, so that the centrifugal cup A is positioned on the No. 3 position 6, the centrifugal cup A is communicated with the ultrasonic generator 11, the flushing water pump 12 and the blow-down valve 13, then the ultrasonic generator 11 is started, sediment at the bottom of the centrifugal cup A is cleaned through the ultrasonic and the flushing water pump 12, and then the sediment is discharged through the blow-down valve 13.
The invention can realize the solid-liquid separation of the desulfurization slurry, improve the measurement accuracy of the water sample analyzer 9 and prolong the service life of the water sample analyzer.
Claims (6)
1. A water sample pretreatment system for a desulfurization slurry analysis instrument is characterized by comprising a first flow regulating valve (1), a flow meter (3), an analysis instrument sample introduction pump (8), a water sample analysis instrument (9), a flushing water tank (10), an ultrasonic generator (11), a flushing water pump (12), a controller (14) and a centrifuge main body (15);
the centrifuge body (15) is sequentially provided with a No. 1 position (4), a No. 2 position (5), a No. 3 position (6) and a No. 4 position (7) along the circumferential direction, wherein, the centrifugal cups are placed on the No. 1 position (4), the No. 2 position (5), the No. 3 position (6) and the No. 4 position (7), the water inlet pipeline is communicated with the inlet of the flowmeter (3) through the first flow regulating valve (1), the outlet of the flowmeter (3) is communicated with the inlet of the centrifugal cup on the No. 1 position (4), the outlet of the centrifugal cup on the No. 2 position (5) is communicated with the inlet of the sample injection pump (8) of the analysis instrument, the outlet of the sample injection pump (8) of the analysis instrument is communicated with the inlet of the water sample analysis instrument (9), the outlet of the flushing water tank (10) is communicated with the inlet of the centrifugal cup on the No. 3 position (6) through the flushing water pump (12), and the ultrasonic generator (11) is connected with the centrifugal cup on the No. 3 position (6);
the controller is connected with the ultrasonic generator (11), the water sample analysis instrument (9), the flushing water pump (12), the flowmeter (3), the first flow regulating valve (1), the analysis instrument sample injection pump (8) and the centrifuge body (15).
2. The water sample pretreatment system of the desulfurization slurry analysis meter according to claim 1, wherein the centrifuge cup at the 1 st position (4), the centrifuge cup at the 2 nd position (5), the centrifuge cup at the 3 rd position (6) and the centrifuge cup at the 4 th position (7) are connected by a work bar.
3. The water sample pretreatment system for a desulfurization slurry analyzer according to claim 1, wherein the water sample analyzer (9) comprises a pH analyzer, a conductivity analyzer, a chloride ion analyzer, a sulfate radical analyzer, a sulfite radical analyzer and an ion chromatograph.
4. The water sample pretreatment system of the desulfurization slurry analysis meter according to claim 1, wherein an outlet of the centrifuge cup at the 3 rd position (6) is communicated with an inlet of the blowdown valve (13), and the controller is connected with the blowdown valve (13).
5. The water sample pretreatment system of the desulfurization slurry analysis meter according to claim 1, wherein the 1 st (4), 2 nd (5), 3 rd (6) and 4 th (7) are distributed in sequence in a counterclockwise direction.
6. The water sample pretreatment system of the desulfurization slurry analysis meter according to claim 1, characterized by further comprising a second flow regulating valve (2), wherein the second flow regulating valve (2) is communicated with the outlet of the first flow regulating valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111372382.7A CN113953101A (en) | 2021-11-18 | 2021-11-18 | Water sample pretreatment system for desulfurization slurry analysis instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111372382.7A CN113953101A (en) | 2021-11-18 | 2021-11-18 | Water sample pretreatment system for desulfurization slurry analysis instrument |
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| CN113953101A true CN113953101A (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111372382.7A Pending CN113953101A (en) | 2021-11-18 | 2021-11-18 | Water sample pretreatment system for desulfurization slurry analysis instrument |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010019702A1 (en) * | 2000-02-25 | 2001-09-06 | Shigenori Watari | Automatic analyzer |
| CN209934982U (en) * | 2019-02-14 | 2020-01-14 | 武汉科技大学 | Medical automatic positioning centrifuge |
| CN212702456U (en) * | 2020-07-29 | 2021-03-16 | 河南省标谱检测技术有限公司 | High-speed centrifuge is used in food detection convenient to wash |
| CN214515322U (en) * | 2020-12-31 | 2021-10-29 | 杭州春来科技有限公司 | Centrifuge with turbidity detects function |
| CN214515300U (en) * | 2021-01-29 | 2021-10-29 | 长沙湘智离心机仪器有限公司 | Centrifuge with data transmission processing function |
-
2021
- 2021-11-18 CN CN202111372382.7A patent/CN113953101A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010019702A1 (en) * | 2000-02-25 | 2001-09-06 | Shigenori Watari | Automatic analyzer |
| CN209934982U (en) * | 2019-02-14 | 2020-01-14 | 武汉科技大学 | Medical automatic positioning centrifuge |
| CN212702456U (en) * | 2020-07-29 | 2021-03-16 | 河南省标谱检测技术有限公司 | High-speed centrifuge is used in food detection convenient to wash |
| CN214515322U (en) * | 2020-12-31 | 2021-10-29 | 杭州春来科技有限公司 | Centrifuge with turbidity detects function |
| CN214515300U (en) * | 2021-01-29 | 2021-10-29 | 长沙湘智离心机仪器有限公司 | Centrifuge with data transmission processing function |
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