CN209530524U - A kind of desulfuration absorbing tower slurries pH and density measuring equipment - Google Patents
A kind of desulfuration absorbing tower slurries pH and density measuring equipment Download PDFInfo
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- CN209530524U CN209530524U CN201920029535.XU CN201920029535U CN209530524U CN 209530524 U CN209530524 U CN 209530524U CN 201920029535 U CN201920029535 U CN 201920029535U CN 209530524 U CN209530524 U CN 209530524U
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Abstract
The utility model discloses a kind of desulfuration absorbing tower slurries pH and density measuring equipments, belong to wet desulphurization slurry feature measurement technical field.Measuring device provided by the utility model includes absorption tower, slurry circulating pump, detection general pipeline, the first detection is in charge of, the second detection is in charge of, pH measuring mechanism and density measure mechanism.By the way that general pipeline and two branch line of detection is arranged on the outlet conduit of slurry circulating pump, and it is in charge of upper setting pH measuring mechanism in the first detection, it is in charge of in the second detection and is provided with density measure mechanism, and pH measuring mechanism and density measure mechanism are respectively positioned on desulfurization gas approach inspection platform, largely reduce the pressure on each pipeline of the measuring device, to reduce washing away and wearing to density measure mechanism and pH measuring mechanism, use and the cost of overhaul are not only reduced, and improves the service life and detection reliability of the measuring device.
Description
Technical field
The utility model relates to wet desulphurization slurry feature measurement technical field more particularly to a kind of desulfuration absorbing tower slurries
PH and density measuring equipment.
Background technique
The safe and reliable and economical operation to flue gas desulphurization system is implemented in coal unit minimum discharge has important meaning
Justice.Existing 90% or more coal unit uses limestone-gypsum wet flue gas desulfurization technology, and minimum discharge requires neat stress dioxy
Change sulphur concentration, nitrogen oxides, dust emission concentration and is respectively smaller than 35,50,10mg/m3.Absorption tower slurries pH and density are desulfurization
System operation controls very important index, it directly influence desulfurization outlet Sulfur Dioxide Emission Allowances it is up to standard whether, system
The quality quality and the equipment attrition even stable operation of desulphurization system of power consumption, the consumption of desulfurizing agent, by-product.
For effective monitoring absorption tower slurries pH and density, desulphurization system all uses online pH meter and mass flowmenter substantially
Absorption tower slurries pH and density value are continuously measured, there are mainly two types of measurement method, first way: pH currently on the market
Meter, densitometer are mounted in gypsum discharge pump outlet conduit bypass branch, and this measurement method is the disadvantage is that due to gypsum discharge pump
Outlet pressure is high, causes densitometer, pH meter wear to electrodes fast, and service life is short, and the measurement method needs gypsum discharge pump to connect
Reforwarding row, it is serious to impeller of pump, pipe wear, gypsum discharge pump power consumption is not only increased, but also improve maintenance of equipment expense.Second
The shortcomings that kind mode: pH meter, densitometer are mounted on the tower wall gravity flow pipeline of absorption tower, this measurement method is that slurries directly flow
Entering absorption tower melt pit, causes sump pump Fraquent start, pit stirrer continuous operation, sump pump, pit stirrer power consumption increase,
It is unfavorable for energy-saving.If when sump pump or blender trouble hunting, will cause pH, density measure interrupts, measuring device
Reliability there are hidden danger.
Utility model content
The purpose of this utility model is to provide a kind of desulfuration absorbing tower slurries pH and density measuring equipment, the measuring devices
Long service life, Measurement reliability and stability are high, advantageously reduce desulphurization system operation and the cost of overhaul.
For this purpose, the utility model uses following technical scheme:
A kind of desulfuration absorbing tower slurries pH and density measuring equipment, including absorption tower and slurry circulating pump, the slurries follow
The both ends of ring pump pass through inlet duct and outlet conduit respectively and are connected to the absorption tower, further includes:
Detection general pipeline, the first detection are in charge of to be in charge of with the second detection, is provided with the first valve, and institute on the detection general pipeline
The one end for stating detection general pipeline is connected to the outlet conduit, and first detection, which is in charge of, is in charge of parallel communication with second detection
Between the other end and the absorption tower of the detection general pipeline；
First detection, which is in charge of, is provided with pH measuring mechanism and the second valve, and second detection, which is in charge of, to be provided with
Density measure mechanism and third valve, and the pH measuring mechanism and the density measure mechanism are respectively positioned on desulfurization gas approach and patrol
It examines on platform.
Preferably, the desulfuration absorbing tower slurries pH and density measuring equipment further include:
Flushing pipeline, one end of the flushing pipeline and first detection are in charge of or company is in charge of in second detection
Logical, the other end is communicated with flushing source, and the 4th valve is provided in the flushing pipeline.
Preferably, the pH measuring mechanism includes measurement tank and pH meter, the measurement tank setting is in first detection
It is in charge of, and is in charge of with first detection and is connected to, the pH meter is located in the measurement tank.
Preferably, the measurement tank includes interconnected vertical tube part and taper portion, the side of the vertical tube part and institute
It states to be provided in taper portion and is in charge of the through-hole being connected to first detection.
Preferably, being provided with the adding mouth of addition desulfurization defoaming agent at the top of the vertical tube part.
Preferably, the measurement tank is made of carbon steel lining ceramics or polytetrafluoroethylene (PTFE).
Preferably, the density measure mechanism includes densitometer, the densitometer setting is in charge of in second detection
On.
Preferably, being provided with the 5th valve on the inlet duct.
Preferably, the desulfuration absorbing tower slurries pH and density measuring equipment further include:
One end of melt pit communicating pipe, the melt pit communicating pipe are connected on the outlet conduit, and the other end is connected to melt pit,
The 6th valve is provided on the melt pit communicating pipe.
It is in charge of preferably, first detection is in charge of with second detection for compo pipe.
The utility model has the beneficial effects that
The utility model provides a kind of desulfuration absorbing tower slurries pH and density measuring equipment, and the measuring device is by starching
General pipeline and two branch line of setting detection on the outlet conduit of liquid circulating pump, and it is in charge of upper setting pH measuring machine in the first detection
Structure and the second valve are in charge of in the second detection and are provided with density measure mechanism and third valve, and by pH measuring mechanism and close
Degree measuring mechanism is respectively positioned on desulfurization gas approach inspection platform, is largely reduced on each pipeline of the measuring device
Pressure not only increases the measuring device to reduce washing away and wearing to density measure mechanism and pH measuring mechanism
Service life and detection reliability, and reduce use and the cost of overhaul.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of desulfuration absorbing tower slurries pH and density measuring equipment provided by the utility model.
In figure:
1, absorption tower；2, slurry circulating pump；3, inlet duct；4, outlet conduit；5, general pipeline is detected；6, the first valve；7,
First detection is in charge of；8, the second detection is in charge of；9, pH measuring mechanism；901, tank is measured；902, pH meter；10, the second valve；11,
Density measure mechanism；12, third valve；13, flushing pipeline；14, the 4th valve；15, source is rinsed；16, the 5th valve；17,
Cheat communicating pipe；18, the 6th valve；19, melt pit；20, the 7th valve.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It can manage
Solution, specific embodiment described herein are used only for explaining the utility model, rather than the restriction to the utility model.Separately
It is outer it should also be noted that, illustrating only part relevant to the utility model for ease of description, in attached drawing and not all.
A kind of desulfuration absorbing tower slurries pH and density measuring equipment are present embodiments provided, which can be right simultaneously
Whether the key parameter pH value of absorption tower slurries and density value measure in flue gas desulphurization system, to locate to desulphurization system
It is monitored in good operating status.Specifically, as shown in Figure 1, the desulfuration absorbing tower slurries pH and density measuring equipment packet
Include absorption tower 1, slurry circulating pump 2, detection general pipeline 5, first detection be in charge of 7, second detection be in charge of 8.The exit on absorption tower 1 is set
It is equipped with slurry circulating pump 2, is connected to, is entered by inlet duct 3 between the exit on absorption tower 1 and the arrival end of slurry circulating pump 2
It is provided with the 5th valve 16 on mouth pipeline 3, passes through outlet between the outlet end of slurry circulating pump 2 and the arrival end on absorption tower 1
Road 4 is connected to.Detection 5 one end general pipeline be connected to outlet conduit 4, the other end simultaneously with first detect be in charge of 7 and second detect be in charge of 8
Connection, first detection be in charge of 7 and second detection be in charge of 8 be arranged in parallel detection general pipeline 5 the other end and absorption tower 1 between, and
The first valve 6 of control detection 5 on-off of general pipeline is provided on detection general pipeline 5.First detection, which is in charge of on 7, is provided with pH measuring mechanism
9 and second valve 10, the second detection, which is in charge of on 8, is provided with density measure mechanism 11 and third valve 12, density measure mechanism 11
Including densitometer, pH measuring mechanism 9 and density measure mechanism 11 are respectively positioned on desulfurization gas approach inspection platform.First detection point
Pipe 7 and the second detection are in charge of 8 preferably using compo pipe, such as can use 2205 compo pipes.
In the present embodiment, by being provided with the detection general pipeline 5 for detection on the outlet conduit 4 of slurry circulating pump 2
With two branch lines, and it is in charge of on 7 pH measuring mechanism 9 and the control of the pH value of setting measurement absorption tower slurries in the first detection
The second valve 10 of 7 on-off is in charge of in the first detection of system, and the density value that measurement absorption tower slurries are provided on 8 is in charge of in the second detection
Density measure mechanism 11 and the second detection of control be in charge of the third valves 12 of 8 on-off, improve the pH value of absorption tower slurries
With the detection efficiency of density value and detection flexibility, realized according to demand convenient for user pH value and density value it is independent detect and
It detects simultaneously.And by the way that pH measuring mechanism 9 and density measure mechanism 11 to be respectively positioned on desulfurization gas approach inspection platform, in pole
The pressure on each pipeline of the measuring device is reduced in big degree, to reduce to density measure mechanism 11 and pH measuring mechanism
9 wash away and wear, improves the service life and detection reliability of the measuring device.In addition, in compared to the prior art
Tower wall gravity flow measurement method, runing time of the measuring device due to reducing sump pump, pit stirrer, detection efficiency is in pole
It is improved in big degree.And compared to the measurement method of gypsum discharge pump outlet conduit 4, which can be such that gypsum arranges
Intermittent duty is pumped out, has saved electricity consumed by gypsum discharge pump, to reduce the operation and the cost of overhaul of desulphurization system.
In order to improve the precision of pH value detection, measurement tank 901 and setting are set in measurement tank 901 by pH measuring mechanism 9
Interior pH meter 902, the setting of measurement tank 901 are in charge of on 7 in the first detection, and are in charge of 7 with the first detection and are connected to, and measure tank 901
Ceramics are served as a contrast using uncorruptible carbon steel or polytetrafluoroethylene (PTFE) is made.Tank 901 is measured by setting, absorption tower slurries are passing through
First detection is able to enter in measurement tank 901 when being in charge of 7 and keeps in, and increases the time of contact of pH meter 902 Yu absorption tower slurries, keeps away
The fluctuation that short-time contact causes measured value is exempted from, has been conducive to improve the final accuracy and stability for obtaining pH value of detection.
Further, the top opening for measuring tank 901 when 1 bubble, overflow are serious on absorption tower, passes through measurement tank 901
Defoaming agent can be rapidly injected in absorption tower 1 by top opening.Defoaming agent is added to the ground on absorption tower 1 in compared to the prior art
In hole 19, then pass through sump pump and absorption tower slurries and defoaming agent are squeezed into absorption tower 1 together, to alleviate 1 bubble problem of absorption tower
Method.In the present embodiment, defoaming agent is added by measuring the top opening of tank 901, defoaming agent can be with absorption tower slurries
Enter inside absorption tower 1 together, since the process is not limited by the liquid level of melt pit 19, sump pump service condition, can contract
Short foaming agent enters the time on absorption tower 1, to improve the efficiency for alleviating absorption tower 1 bubble and flooding problems.Still further,
In order to reduce the difficulty of foaming agent injection measurement tank 901, in the present embodiment, tank 901 will be measured and be set as interconnected straight
Canister portion and taper portion, are provided with the adding mouth of addition desulfurization defoaming agent at the top of vertical tube part, the bottom of vertical tube part and taper portion
Top connection is provided on the side of vertical tube part and taper portion and is in charge of 7 through-holes being connected to the first detection, the shape of through-hole and
Size is adapted with the cross sectional shape that the first detection is in charge of 7.
Measuring device is during prolonged use, it is easy to the problem of pipeline blockage occurs.In order to avoid pipeline is stifled
Plug, in the present embodiment, as shown in Figure 1, the measuring device is additionally provided with flushing pipeline 13, one end of flushing pipeline 13 and first
Detection be in charge of 7 or second detection be in charge of 8 connections, the other end is communicated with flushing source 15, and is provided with the 4th in flushing pipeline 13
Valve 14.When measuring device is blocked using a period of time, the first valve 6 is closed, opens the 4th valve 14, rinses source 15
Interior scouring media the first detection can be in charge of 7 and second detection be in charge of 8 and be rinsed.
Further, melt pit communicating pipe 17 is additionally provided on outlet conduit 4, one end connection of melt pit communicating pipe 17 is going out
On mouth pipeline 4, the other end is connected to melt pit 19, and the 6th valve 18 is provided on melt pit communicating pipe 17.Outlet conduit 4 and punching
It washes between source 15 and is additionally provided with counter-flushing pipeline, one end connection of counter-flushing pipeline is being located at melt pit communicating pipe 17 and serum recycle
On outlet conduit 4 between pump 2, the other end is connected to source 15 is rinsed, and backwash tube road is additionally provided with the 7th valve 20.Work as slurry
Liquid circulating pump 2 stops working, and when the slurries in slurry circulating pump 2 exclude clean, openable 7th valve 20 utilizes flushing source 15
Interior water backwashes slurry circulating pump 2, so that the gypsum deposited in slurry circulating pump 2 be removed completely, follows to slurries
Slurry circulating pump 2 can be filled water to maintain after being cleaned by ring pump 2, to improve the service life of slurry circulating pump 2,
It avoids breaking down.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of desulfuration absorbing tower slurries pH and density measuring equipment, including absorption tower (1) and slurry circulating pump (2), the slurry
The both ends of liquid circulating pump (2) pass through inlet duct (3) respectively and outlet conduit (4) is connected to the absorption tower (1), and feature exists
In, further includes:
(7) are in charge of in detection general pipeline (5), the first detection and the second detection is in charge of (8), are provided with first on the detection general pipeline (5)
Valve (6), and one end of detection general pipeline (5) is connected to the outlet conduit (4), (7) and institute are in charge of in first detection
It states the second detection and is in charge of (8) parallel communication between the other end and the absorption tower (1) of detection general pipeline (5)；
First detection, which is in charge of on (7), is provided with pH measuring mechanism (9) and the second valve (10), and second detection is in charge of
(8) density measure mechanism (11) and third valve (12), and the pH measuring mechanism (9) and the density measure machine are provided on
Structure (11) is respectively positioned on desulfurization gas approach inspection platform.
2. desulfuration absorbing tower slurries pH according to claim 1 and density measuring equipment, which is characterized in that further include:
(7) or second detection are in charge of in flushing pipeline (13), one end of the flushing pipeline (13) and first detection
It is in charge of (8) connection, the other end is communicated with flushing source (15), is provided with the 4th valve (14) on the flushing pipeline (13).
3. desulfuration absorbing tower slurries pH according to claim 1 and density measuring equipment, which is characterized in that
The pH measuring mechanism (9) includes measurement tank (901) and pH meter (902), and the measurement tank (901) is arranged described first
Detection is in charge of on (7), and is in charge of (7) with first detection and is connected to, and the pH meter (902) is located in the measurement tank (901).
4. desulfuration absorbing tower slurries pH according to claim 3 and density measuring equipment, which is characterized in that
Measurement tank (901) includes interconnected vertical tube part and taper portion, the side of the vertical tube part and the taper portion
On be provided with and be in charge of the through-hole that (7) be connected to first detection.
5. desulfuration absorbing tower slurries pH according to claim 4 and density measuring equipment, which is characterized in that
The adding mouth of addition desulfurization defoaming agent is provided at the top of the vertical tube part.
6. desulfuration absorbing tower slurries pH according to claim 3 and density measuring equipment, which is characterized in that
The measurement tank (901) is made of carbon steel lining ceramics or polytetrafluoroethylene (PTFE).
7. desulfuration absorbing tower slurries pH according to claim 1 and density measuring equipment, which is characterized in that
The density measure mechanism (11) includes densitometer, and the densitometer setting is in charge of on (8) in second detection.
8. desulfuration absorbing tower slurries pH according to claim 1 and density measuring equipment, which is characterized in that
The 5th valve (16) is provided on the inlet duct (3).
9. desulfuration absorbing tower slurries pH according to claim 1 and density measuring equipment, which is characterized in that further include:
One end of melt pit communicating pipe (17), the melt pit communicating pipe (17) are connected on the outlet conduit (4), the other end and ground
(19) connection is cheated, is provided with the 6th valve (18) on the melt pit communicating pipe (17).
10. desulfuration absorbing tower slurries pH according to claim 1 and density measuring equipment, which is characterized in that
(7) are in charge of in first detection and second detection is in charge of (8) for compo pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920029535.XU CN209530524U (en) | 2019-01-08 | 2019-01-08 | A kind of desulfuration absorbing tower slurries pH and density measuring equipment |
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| CN201920029535.XU CN209530524U (en) | 2019-01-08 | 2019-01-08 | A kind of desulfuration absorbing tower slurries pH and density measuring equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965068A (en) * | 2020-07-03 | 2020-11-20 | 华电电力科学研究院有限公司 | Simple system and method for improving online measurement accuracy of density of desulfurized gypsum slurry |
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2019
- 2019-01-08 CN CN201920029535.XU patent/CN209530524U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965068A (en) * | 2020-07-03 | 2020-11-20 | 华电电力科学研究院有限公司 | Simple system and method for improving online measurement accuracy of density of desulfurized gypsum slurry |
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