CN203981533U - A kind of for measuring the device of serum density - Google Patents
A kind of for measuring the device of serum density Download PDFInfo
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- CN203981533U CN203981533U CN201420410617.6U CN201420410617U CN203981533U CN 203981533 U CN203981533 U CN 203981533U CN 201420410617 U CN201420410617 U CN 201420410617U CN 203981533 U CN203981533 U CN 203981533U
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- perforate
- absorption tower
- low pressure
- short tube
- pressure measurement
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a kind of for measuring the device of gypsum slurries density in absorption tower, comprise low pressure measurement perforate 1, high-tension measurement perforate 2, connect short tube 3, diaphragm valve 4 and pressure difference transmitter 5, by pressure difference transmitter being directly installed on to absorbing tower wall fixed position, utilize pressure differential method to measure absorption tower serum density, can guarantee absorption tower slurries measurement quality, rub proofness and anti-clogging degree have been improved, extend serviceable life, reduced economic investment simultaneously.
Description
Technical field
The utility model relates to for measuring the device of serum density, particularly for measuring the device of gypsum slurries density in absorption tower.
Background technology
In desulfurization method of limestone-gypsum technology, for the measurement of gypsum slurries density, there is very important meaning.Gypsum slurries density has very large effect for crystal generation, growth and absorption tower fouling prevention, it also directly affects the quality of the method for operation of gypsum vacuum belt dewaterer and the quality of gypsum and dehydrating effect, therefore must use reliable and stable method to detect serum density and guarantee desulphurization system stable operation.For the type selecting of gypsum slurries density measuring instrument, should take into full account corrosivity, the wearability of slurries, the deposition of solid particle, fouling etc. also will be considered its economy and reliability simultaneously.
The mode that most desulfurization company adopts the measurement of absorption tower serum density is, in the outlet of gypsum slurries extraction pump, online densitometer is set, it is coriolis force densitometer, but its cost of equipment is high, measure pipeline serious wear, debugging and run duration frequency of maintenance are high, replacing spare unit are frequent, and maintenance cost is high.
A kind of device of measuring slurry density of desulfurizing absorption column is also disclosed in existing report, generally include absorption tower, two thief holes on pressure difference transmitter and absorbing tower wall, wherein differential pressure transmitter is received respectively on sampling pipeline section by high pressure side capillary tube and low pressure side capillary tube, according to formula ρ 1=(Δ P+ ρ 2gh)/(gh), calculates absorption tower serum density.Yet the apparatus and method of existing report, owing to adopting kapillary to be connected with differential manometer, easily cause and stop up and reduce serviceable life, and the report location parameter of each parts not being optimized, may cause the error of measurement result.
For overcoming above deficiency, it is a kind of for measuring the device of gypsum slurries density in absorption tower that the utility model provides.
Summary of the invention
The utility model is by being directly installed on pressure difference transmitter absorbing tower wall fixed position, and utilize pressure differential method to measure absorption tower serum density, can guarantee absorption tower slurries measurement quality, rub proofness and anti-clogging degree have been improved, extended serviceable life, reduce costs reduction economic investment simultaneously.
It is a kind of for measuring the device of gypsum slurries density in absorption tower that the utility model provides, comprise low pressure measurement perforate 1, high-tension measurement perforate 2, connect short tube 3, diaphragm valve 4 and pressure difference transmitter 5, described connection short tube 3 one end are connected with high-tension measurement perforate or low pressure measurement perforate respectively by flange, the other end connects diaphragm valve 4, an interface of described pressure difference transmitter 5 is directly connected by flange with the diaphragm valve that is arranged on low pressure measurement tapping 1, and another interface is drawn pressure measurement kapillary 6 and is connected on the diaphragm valve that is arranged on high-tension measurement perforate 2.
In preferred embodiment of the utility model, described high-tension measurement perforate 2 is greater than 0.5m apart from distance at the bottom of absorbing tower, is preferably 0.7m.It is former because the gypsum slurries at the bottom of absorbing tower can deposit under long-time, under the stirring of side-feeding mixer, at the bottom of the gypsum slurries of absorption tower bottom can form arcuation and is deposited in tower, on tower wall, can accumulate certain height, so the position of high-tension measurement perforate will be higher than the height of tower wall deposit gypsum.
In preferred embodiment of the utility model, the difference in height h2 of described high-tension measurement perforate 2 and described low pressure measurement perforate 1 is 1.5～3.5m, is preferably 2.7m.
In preferred embodiment of the utility model, it is 30-60 ° of setting that described connection short tube 3 is preferably inclined upwardly with absorption tower wall α, is preferably 45 ° of settings, and the extension elongation d that connects short tube is 100-200mm, is preferably 150mm.When wherein setting angle is selected 45 °, prevent slurries fouling in pipeline, flushing pipe can be installed, reduce the complicated of equipment.
In preferred embodiment of the utility model, two connection short tubes 3 that connect respectively with low pressure measurement perforate 1 or high-tension measurement perforate 2 be parallel to each other and length identical.Preferably, the perforate of low pressure measurement described in the utility model (1) or high-tension measurement perforate (2) all equate with the described internal diameter that is connected short tube (3).
In preferred embodiment of the utility model, flange described in the utility model is a kind of in threaded flange, welding flange or clip flange.
In preferred embodiment of the utility model, described low pressure measurement perforate 1 is 3～5m apart from slurries minimum liquid level distance h 3 in absorption tower.
Described in the utility model is by Bernoulli equation principle, to measure the density of slurries for measuring the device of gypsum slurries density in absorption tower when measuring, and its principle equation is as follows:
P
1+ρg(h
1+h
2)＝P
2+ρgh
1
P
2-P
1＝ρg(h
1+h
2)-ρgh
1
ΔP＝ρgh
2
In formula: Δ P=P
2-P
1
P
1: the pressure that low pressure measurement perforate is measured
P
2: the pressure that high-tension measurement perforate is measured
Δ P: pressure P
2with pressure P
1between pressure reduction
G: gravity constant
ρ: absorption tower serum density.
H1: the distance at the bottom of high-tension measurement perforate tower
H2: the difference in height of high-tension measurement perforate and low pressure measurement perforate
Because the density of absorption tower slurries must be definite value as a whole when specific, although because the architectural feature on absorption tower is limit, the density value that the different layers of absorption tower slurries and the different parts of same layer reflect is discrepant, but near density gypsum slurries extraction pump entrance can think the density of absorption tower gypsum slurries, thereby density thief hole also designs at gypsum slurries extraction pump and exports on female pipe.
The utility model adopts pressure difference transmitter to measure absorption tower gypsum slurries density, the one, measure as far as possible near the necessarily absorption tower gypsum slurries density of liquid section of gypsum slurries extraction pump suction inlet height, so that this measured value more approaches gypsum slurries extraction pump outlet density measurement; The 2nd, make as far as possible the measurement variation amount of pressure difference transmitter measurement absorption tower gypsum slurries density comparatively stable, that is guarantee that certain differential pressure measurement highly, even if the density value of measuring by differential pressure method like this and actual density value have certain deviation, the deviation that also can guarantee density measurement by correction is in controlled range.
Device described in the utility model is by being directly installed on pressure difference transmitter absorbing tower wall fixed position, assurance is to absorption tower serum density monitoring and controlling, and measuring method is simple, can reduce servicing time and cost, reach the serum density in absorption tower is measured accurately.
Accompanying drawing explanation
Fig. 1 is described in the utility model for measuring the structural representation of the device of gypsum slurries density in absorption tower;
In figure: the perforate of 1-low pressure measurement; The perforate of 2-high-tension measurement; 3-connects short tube; 4-diaphragm valve; 5-pressure difference transmitter;
6-pressure measurement kapillary; 8-absorption tower
Distance at the bottom of the perforate of h1-high-tension measurement and tower;
The difference in height of the perforate of h2-high-tension measurement and low pressure measurement perforate;
The perforate of h3-low pressure measurement is apart from slurries minimum liquid level distance in absorption tower
Embodiment
As shown in Figure 1 for measuring the device of gypsum slurries density in absorption tower, comprise low pressure measurement perforate 1, high-tension measurement perforate 2, connect short tube 3, diaphragm valve 4, pressure difference transmitter 5 and pressure measurement kapillary 6, in described low pressure measurement perforate 1, by flange, be connected with and connect short tube 3, the other end that connects short tube 3 is connected with diaphragm valve 4, in described high-tension measurement perforate 2, also by flange, be connected with and connected short tube 3, the other end that connects short tube 3 is connected with diaphragm valve 4.Be connected to two connection short tubes 3 in low pressure measurement perforate 1 and high-tension measurement perforate 2 and be inclined upwardly and be 45 ° with absorption tower wall, the extension elongation d of described connection short tube 3 is 150mm.An interface of described pressure difference transmitter 5 is directly connected by flange with the diaphragm valve 4 that is arranged on low pressure measurement perforate 1 place, and another interface is connected on the diaphragm valve 4 that is arranged on high-tension measurement perforate 2 places by pressure measurement kapillary 6.High-tension measurement perforate 2 is greater than 0.5m with distance at the bottom of absorbing tower, and the difference in height h2 of high-tension measurement perforate 2 and described low pressure measurement perforate 1 is 1.5～3.5m, is preferably 2.7m, and low pressure measurement perforate 1 is 3～5m apart from slurries minimum liquid level distance h 3 in absorption tower.
During measurement, be communicated with low pressure measurement perforate 1, high-tension measurement perforate 2, through pressure difference transmitter 5, measure the pressure P that high-tension measurement perforate is measured
2pressure P with low pressure measurement perforate measurement
1between pressure differential deltap P, bring formula ρ 1=Δ P/ (gh into
2) in, calculate gypsum slurries density in absorption tower.
Claims (5)
1. one kind for measuring the device of gypsum slurries density in absorption tower, comprise low pressure measurement perforate (1), high-tension measurement perforate (2), connect short tube (3), diaphragm valve (4), pressure difference transmitter (5) and pressure measurement kapillary (6), one end of described connection short tube (3) is connected with low pressure measurement perforate (1) or high-tension measurement perforate (2) respectively by flange, the other end is connected with diaphragm valve (4), it is characterized in that, interface of described pressure difference transmitter (5) directly connects by flange with the diaphragm valve that is arranged on low pressure measurement perforate (1) and locates to be connected short tube (3), another interface is connected to and is arranged on high-tension measurement perforate (2) and locates to connect on the diaphragm valve of short tube (3) by pressure measurement kapillary (6), the difference in height of described high-tension measurement perforate (2) and described low pressure measurement perforate (1) is 1.5-3.5m, described connection short tube (3) is inclined upwardly and is 30-60 ° and to be connected the length that short tube (3) stretches out absorption tower be 100-200mm with absorption tower wall.
2. claimed in claim 1 a kind ofly it is characterized in that for measuring the device of gypsum slurries density in absorption tower, described high-tension measurement perforate (2) is 0.7m with the distance at the bottom of absorbing tower.
3. claimed in claim 1 a kind ofly it is characterized in that for measuring the device of gypsum slurries density in absorption tower, the difference in height of described high-tension measurement perforate (2) and described low pressure measurement perforate (1) is 2.7m; And described connection short tube (3) is inclined upwardly, and to be 45 ° and the extension elongation that is connected short tube with absorption tower wall be 150mm.
4. a kind of described in claim 1-3 any one is characterized in that for measuring the device of gypsum slurries density in absorption tower, and in described low pressure measurement perforate (1) and absorption tower, slurries minimum liquid level is apart from being 3～5m.
5. claimed in claim 4 a kind of for measuring the device of gypsum slurries density in absorption tower, it is characterized in that, two the connection short tubes (3) that connect respectively with low pressure measurement perforate (1) or high-tension measurement perforate (2) be parallel to each other and length identical; And described low pressure measurement perforate (1) or high-tension measurement perforate (2) all equate with the described internal diameter that is connected short tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410617.6U CN203981533U (en) | 2014-07-24 | 2014-07-24 | A kind of for measuring the device of serum density |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410617.6U CN203981533U (en) | 2014-07-24 | 2014-07-24 | A kind of for measuring the device of serum density |
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| Publication Number | Publication Date |
|---|---|
| CN203981533U true CN203981533U (en) | 2014-12-03 |
Family
ID=51978964
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|---|---|---|---|
| CN201420410617.6U Active CN203981533U (en) | 2014-07-24 | 2014-07-24 | A kind of for measuring the device of serum density |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655527A (en) * | 2015-02-16 | 2015-05-27 | 华北电力科学研究院有限责任公司 | Slurry density measurement system and method |
| CN104677780A (en) * | 2015-03-20 | 2015-06-03 | 国投钦州发电有限公司 | Density measurement system for slurry in wet flue gas desulfurization absorption tower of thermal power plant |
| CN105241788A (en) * | 2015-09-14 | 2016-01-13 | 天津二十冶建设有限公司 | Convenient industrial canning liquid density measurement method |
| CN113008326A (en) * | 2021-03-04 | 2021-06-22 | 奥特派智能科技有限公司 | Liquid density and liquid level position measuring device and measuring method |
-
2014
- 2014-07-24 CN CN201420410617.6U patent/CN203981533U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655527A (en) * | 2015-02-16 | 2015-05-27 | 华北电力科学研究院有限责任公司 | Slurry density measurement system and method |
| CN104677780A (en) * | 2015-03-20 | 2015-06-03 | 国投钦州发电有限公司 | Density measurement system for slurry in wet flue gas desulfurization absorption tower of thermal power plant |
| CN105241788A (en) * | 2015-09-14 | 2016-01-13 | 天津二十冶建设有限公司 | Convenient industrial canning liquid density measurement method |
| CN113008326A (en) * | 2021-03-04 | 2021-06-22 | 奥特派智能科技有限公司 | Liquid density and liquid level position measuring device and measuring method |
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| GR01 | Patent grant |