CN201138322Y - Density sensor in on-line weighing type - Google Patents
Density sensor in on-line weighing type Download PDFInfo
- Publication number
- CN201138322Y CN201138322Y CNU2007201916538U CN200720191653U CN201138322Y CN 201138322 Y CN201138322 Y CN 201138322Y CN U2007201916538 U CNU2007201916538 U CN U2007201916538U CN 200720191653 U CN200720191653 U CN 200720191653U CN 201138322 Y CN201138322 Y CN 201138322Y
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- sensor
- density sensor
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- weighing type
- density
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Abstract
The utility model is a density sensor of online weighing type, which is characterized in that the sensor includes a shield. A measurement component is arranged at the lower part of the shield, on which a measurement barrel is vertically arranged. A slurry inlet pipe passes over the measurement barrel. The draft tube diverging from a T-junction inserts into the measurement barrel near the bottom. The top end of the measurement barrel is provided with an overflow port. When the measured liquid level is higher than the overflow port, the measured liquid flows out automatically, which ensures a certain cubage of the flowing liquid. The density of the measured medium can be measured by the sensor. The density sensor of online weighing type has the beneficial effects of no radioactive source and nuclear radiation, no harm to construction personnel, no direct contact between the sensor and the measured liquid, no pollution, convenient maintenance and high precision.
Description
Technical field
The utility model belongs to liquid medium density proving installation technical field, particularly a kind of online weighing formula density sensor.
Background technology
In the engineering constructions such as present large and medium-sized power station, grouting works must use the job specifications of three parameters, systemic circulation grouting automatic recording instrument to put into effect in succession, and progressively carries out with the result standard of cement comsumption as grouting works.The process detection of dynamic of pressure, flow two parameters realizes substantially in the grouting automatic recording instrument at present.But the detection of the water cement ratio of cement grout (W/C) still rests on manual weighing's stage, and the water cement ratio data of demonstration and printing also are artificial the inputs in the self-recording device.
The online dynamic density sensor that uses mainly contains at present: nucleon density sensor and differential pressure type density sensor.
The nucleon density principle of sensors is when passing cement grout by the energetic gamma rays bundle, part ray is absorbed by slurries, another part ray passes slurries and is detected the device absorption, because water section and cement granules part is different to gamma-ray absorption coefficient in the slurries, absorb ray by analyzing detector, can calculate the density of slurries.Should fully carry out every anti-nuclear facilities, the distance of taking care during use at use nucleon density sensor.When measuring serum density, forbid to have foreign material and sediment in the pipeline in the use,, can cause the error of measurement to increase because foreign material are different to the absorption coefficient and the slurries of ray.
Differential pressure pick-up is density bucket and high-precision pressure sensor that adopts a level altitude.By sensor the information of the slurries in the density bucket is passed to vasculum, can obtain serum density by analyzing.This density sensor test pressure inductive head will with fluid to be measured directly contact contaminated easily, burn into is bad easily, precision fluctuation big.
Summary of the invention
The purpose of this utility model provides the online weighing formula density sensor that a kind of Dynamic High-accuracy detects serum density.Can the dynamic any liquid medium density of online detection.And do not have radioactive source, no nuclear radiation does not have any harm to the workmen; Sensor does not directly contact with fluid to be measured, be difficult for contaminated, easy to maintenance, precision is high.
The utility model realizes that the technical scheme of its goal of the invention is: a kind of online weighing formula density sensor is provided, this sensor comprises protective cover, the measurement assembly is arranged at the bottom in the protective cover, measure to be placed with on the assembly and measure tube, pulp-inlet pipe passes through from measuring the tube top, utilize threeway to tell a mozzle and insert the position of measuring the nearly bottom of socket joint, the part slurries enter through mozzle and measure tube.Measuring the tube upper end has overflow vent, and when fluid to be measured exceeded overflow vent, fluid to be measured flowed out automatically, guaranteed the working fluid given volume.Can measure measured medium density through this sensor.
Online weighing formula density sensor principle of work: fluid to be measured is through out-of-date because the volume of measuring tube (v) constant, the special measurement assembly is measured quality (m), according to ρ=m/v, can draw measured medium density.
The beneficial effects of the utility model are, do not have radioactive source, and no nuclear radiation does not have any harm to the workmen; Sensor does not directly contact with fluid to be measured, be difficult for contaminated, easy to maintenance, precision is high
Description of drawings
Fig. 1 is a synoptic diagram of the present utility model, and Fig. 2 is along the sectional view of A-A direction among Fig. 1.
Among the figure: 1, protective cover, 2, spacing thimble, 3 measure tube, and 4, the mozzle valve, 5, pulp-inlet pipe, 6, threeway, 7, isocon, 8, mozzle, 9, valve, 10, overflow vent, 11, measure assembly, 12, clean-out opening.
Embodiment
As shown in Figure 1, the outside of online weighing formula density sensor is a protective cover 1, the protective cover inner bottom part is for measuring assembly 1, vertically be placed with on it and measure tube 2, the top of protective cover 1 has pulp-inlet pipe 5 to pass through, to be divided into isocon 7 and mozzle 8 by threeway 6, isocon inserts measures tube 2 outlets near the bottom of measuring tube, and overflow vent 10 is arranged at the top of measuring tube.
Slurries are entered by mozzle 8 and measure tube 2, and when the slurries height reached overflow vent 10, unnecessary slurries can overflow, and imported isocon 7, and the tested slurry volume of measuring in the tube 3 is (v) constant like this.Measure assembly 11 and measure the quality (m) of tested slurries,, can draw measured medium density according to ρ=m/v.
Because the slurries in the mozzle 8 are identical with the slurries in the pulp-inlet pipe 5 and flow synchronously, and the tested slurries of measuring in the tube 3 are also upgraded incessantly synchronously, so dynamically measure the density of slurries.
During fluid to be measured process density sensor, by mozzle valve 4, it is too little to regulate the fluid to be measured flow at any time.The mozzle lower end is provided with the buffer substrate tablet (not shown), in case flow velocity has impulse force to measuring tube bottom when too fast, influences measuring accuracy.
Run through protective cover 1, be provided with two groups of spacing thimbles 2, touch and measure tube 3, spacing to it, guarantee the sensor measurement precision.Fig. 2 is the sectional view at spacing thimble place.Spacing thimble also can only be provided with one group.
The bottom of protective cover 1 is provided with clean-out opening 12, is convenient to clean slurries and other impurity of falling into.
Mounted valve 9 on the isocon 7, the scalable slurry flow.
Claims (5)
1, a kind of online weighing formula density sensor, it is characterized in that: this sensor comprises has protective cover (1), measurement assembly (11) is arranged at the bottom in the protective cover, measure vertically to be placed with on the assembly and measure tube (3), pulp-inlet pipe (5) passes through from measuring tube (3) top, threeway (6) is told a mozzle (8) and is inserted measurement tube (3) position near the bottom, and measuring tube (3) upper end has overflow vent (10).
2, as the said a kind of line weighing type density sensor of claim 1, it is characterized in that: run through protective cover (1), be provided with one or two group of spacing thimble (2), touch and measure tube (3).
3, as the said a kind of line weighing type density sensor of claim 1, it is characterized in that: the mozzle lower end is provided with buffer substrate tablet.
4, as the said a kind of line weighing type density sensor of claim 1, it is characterized in that: mozzle (8) is provided with mozzle valve (4).
5, as the said a kind of line weighing type density sensor of one of claim 1 to 4, it is characterized in that: the bottom of protective cover (1) is provided with clean-out opening (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201916538U CN201138322Y (en) | 2007-11-20 | 2007-11-20 | Density sensor in on-line weighing type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201916538U CN201138322Y (en) | 2007-11-20 | 2007-11-20 | Density sensor in on-line weighing type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138322Y true CN201138322Y (en) | 2008-10-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201916538U Expired - Lifetime CN201138322Y (en) | 2007-11-20 | 2007-11-20 | Density sensor in on-line weighing type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138322Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221513A (en) * | 2011-03-31 | 2011-10-19 | 成都山江岩土科技有限责任公司 | Slurry density sensor |
| CN103149123A (en) * | 2013-01-30 | 2013-06-12 | 鲁东大学 | Novel storage battery electrolyte density comprehensive measuring instrument |
-
2007
- 2007-11-20 CN CNU2007201916538U patent/CN201138322Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221513A (en) * | 2011-03-31 | 2011-10-19 | 成都山江岩土科技有限责任公司 | Slurry density sensor |
| CN103149123A (en) * | 2013-01-30 | 2013-06-12 | 鲁东大学 | Novel storage battery electrolyte density comprehensive measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081022 |