CN203350154U - Density detector - Google Patents
Density detector Download PDFInfo
- Publication number
- CN203350154U CN203350154U CN 201320435652 CN201320435652U CN203350154U CN 203350154 U CN203350154 U CN 203350154U CN 201320435652 CN201320435652 CN 201320435652 CN 201320435652 U CN201320435652 U CN 201320435652U CN 203350154 U CN203350154 U CN 203350154U
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- China
- Prior art keywords
- density detector
- container
- measuring container
- measuring vessel
- density
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000005070 sampling Methods 0.000 claims abstract description 9
- 230000005587 bubbling Effects 0.000 claims abstract description 5
- 241000628997 Flos Species 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001739 density measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a density detector. The density detector comprises a differential pressure transmitter, a sampling tube, a measuring container and a collecting container. The density detector is characterized in that the measuring container is arranged in the collecting container and is fixed by fixed blocks, the measuring container is an open container, a discharge outlet is formed in the lower part of the measuring container, an air inlet pipe and a bubbling tube are inserted into the measuring container through an opening, and the air inlet pipe is connected with the differential pressure transmitter and an air source; the sampling tube is arranged on the opening of the measuring container through a regulating valve; a discharge connecting flange is arranged under the collecting container. The density detector has the advantages that the price is low, and material requirements for manufacturing a measuring system are low, so that the cost is lower, the density detector is easy and feasible to maintain or is maintenance free, and a detection purpose can be achieved by only guaranteeing the overflowing of measured media in the measuring container and the smoothness of a liquid outlet of the measuring container. After the density detector provided by the utility model is proved through the actual use, an anticipative purpose is achieved, and the density detector is suitable for the measurement field of the liquid density.
Description
Technical field
The utility model relates to the instrument pick-up unit, particularly relates to a kind of density tester.
Background technology
In Chemical Manufacture, density is as an important online detection and control parameter, inaccurate because of what detect, can cause product quality to descend or increase energy consumption, increases material loss etc.Nowadays mostly the on-line detector table that used is that the gamma ray that uses isotope Ce 137, Co 60 to produce sees through the different densities medium and can produce the principle of decay and the densitometer that the Coriolis force principle is made, as U.S. Reson A/S nuclear density gauge, the tuning-fork type densitometer that ROSEMOUNT company produces and the nuclear density gauge of domestic production.
Above density measure instrument, the nuclear density gauge of thunderous gloomy company, expensive, because there being ionizing radiation make the people produce fear and the maintainer is damaged, and after damaging, be difficult for repairing, becoming after discarded object must the specialty keeping, causes production cost further to increase; And the tuning-fork type densitometer, price is also expensive, and is limited to environment for use, as the adhesion of medium, be piled up in survey sensor, just can cause, detects inaccurately, increases the repair and maintenance amount, and impact is produced etc.
Above-mentioned existing density measure instrument in actual use, obviously has defect and exists, and remain to be improved.Improving of the above-mentioned defect of the utility model thoughts, be that the spy concentrates on studies and coordinates repetition test, finally proposes a kind of reasonable in design and effectively improve the utility model of above-mentioned defect.
Summary of the invention
The purpose of this utility model is by detected medium sampling being optimized to design, adopting traditional differential density meter to detect principle, completing Density Detection, design independently sampling equipment, overcome vapour lock, the shortcoming such as burn into is difficult in maintenance, precision is low, reach goodish online detection effect.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of density tester mainly comprises differential pressure transmitter, stopple coupon, measuring vessel, collection container, it is characterized in that described measuring vessel is placed in collection container, there is fixed block to fix, measuring vessel is open-top receptacle, floss hole is arranged at bottom, draft tube and bubbling pipe are from uncovered insertion measuring vessel, and draft tube connects differential pressure transmitter and source of the gas; Stopple coupon through the sampling variable valve be placed in measuring vessel uncovered on; The discharge joint flange is arranged under collection container.
The utility model utilizes the static pressure principle, uses differential pressure transmitter tracer liquid liquid level, if liquid level is certain, liquid level height and actual liquid level height Δ P that differential pressure transmitter detects can be recorded by differential pressure densimeter, according to the static pressure principle, have:
ΔP?=ρgh
So ρ also just can obtain.Just be based on this principle, through the analysis to the characteristics of processing medium and Chemical Manufacture, and, along with the extensive use of PLC and Distributed Control System (DCS), designing the online detection density meter of the utility model.At the less demanding environment of accuracy of detection, according to static pressure principle and formula, just can know that ρ and Δ P(are definite value because of the high h of liquid level, so gh is definite value) linear, if, with water calibration densitometer, just can come into operation; When requiring the occasion that accuracy of detection is high, if adopting air blowing type is measured, will consider that pipeline vapour lock, measuring vessel overflow the fluctuation of liquid level etc., can in PLC or Distributed Control System (DCS), add calibration factor K to be calibrated, calibration factor K be for repeatedly calibrating mean value.By the compensation of K value, greatly improve the precision of density measurement system like this, meet the demand of producing.
The utlity model has following advantage: low price, the material requirements of making measuring system is not high, so cost is lower, and safeguard simple or non-maintaining, as long as guarantee that in measuring vessel, measured medium overflows, and the measuring vessel leakage fluid dram is unobstructed, just can reach testing goal.And the wide model of usable range, not like nuclear density gauge, if for easy fouling medium, just can be forbidden because layer of scale cause detecting, same, the tuning-fork type densitometer also faces identical problem.
A kind of density tester that the utility model provides, used proof by reality, reached predetermined purpose, is applicable to the liquid density measurement field.
The accompanying drawing explanation
Accompanying drawing is structural representation of the present utility model;
In figure: 1-differential pressure transporting, 2--source of the gas, 3-stopple coupon, 4-sampling variable valve, 5--measuring vessel, 6--bubbling pipe, 7-collection container, 8-discharge joint flange, 9-fixed block, 10-floss hole.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described:
embodiment:
As shown in drawings, a kind of density tester mainly comprises differential pressure transmitter 1, stopple coupon 3, measuring vessel 5, collection container 7, it is characterized in that described measuring vessel 5 is placed in collection container 7, there is fixed block 9 fixing, measuring vessel 5 is open-top receptacle, floss hole 10 is arranged at bottom, and draft tube and bubbling pipe 6 are from uncovered insertion measuring vessel 5, and draft tube connects differential pressure transmitter 1 and source of the gas 2; Stopple coupon 3 through the sampling variable valve 4 be placed in measuring vessel 5 uncovered on; Collection container has discharge joint flange 8 for 7 times.Below that function to each parts in figure is described:
Differential pressure transmitter 1, for the static pressure detection of respective heights liquid; Source of the gas 2 is adjustable instrument compressed air require devices, for adjusting gas flow, makes back pressure that differential pressure transmitter detects approach the pressure of respective heights liquid; Stopple coupon 3, sample for measured medium; Sampling variable valve 4 also can just overflow measuring vessel 5 for the adjustment measured medium in measuring vessel 5 discharges, makes the liquid level of measuring vessel 5 keep constant; Measuring vessel 5, it is to make measured medium keep the critical component of constant level, can select suitable material to make according to environment for use and measured medium; Bubbling pipe 6, tap into the tracheae end, generally large than draft tube, can select suitable material to make according to environment for use and measured medium, thereby it makes the bubble of emerging keep evenly obtaining more uniform differential pressure value; Collection container 7, for carrying out centralized recovery discharge to overflowing with the medium that gives off measuring vessel 5; Discharge joint flange 8, for being connected to the pipeline of suitable emission point; Fixed block 9, for fixation measuring container 5, can select suitable material to make according to environment for use; The floss hole 10 of measuring vessel 5, be consistent for making medium and measured medium density in measuring vessel 5.
This densitometer is different from processing medium according to the environment used, and version also changes to some extent, but crucial parts are basically identical.The utility model describes by specific implementation process, in the situation that do not break away from the utility model scope, can also carry out various conversion and be equal to replacement the utility model patent, therefore, the utility model is not limited to disclosed specific implementation process, and should comprise the whole embodiments that fall in the utility model claim scope.
Claims (1)
1. a density tester mainly comprises differential pressure transmitter (1), stopple coupon (3), measuring vessel (5), collection container (7), it is characterized in that described measuring vessel (5) is placed in collection container (7), there is fixed block (9) fixing, measuring vessel (5) is open-top receptacle, floss hole (10) is arranged at bottom, draft tube and bubbling pipe (6) are from uncovered insertion measuring vessel (5), and draft tube connects differential pressure transmitter (1) and source of the gas (2); Stopple coupon (3) through the sampling variable valve (4) be placed in measuring vessel (5) uncovered on; Discharge joint flange (8) is arranged under collection container (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320435652 CN203350154U (en) | 2013-07-22 | 2013-07-22 | Density detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320435652 CN203350154U (en) | 2013-07-22 | 2013-07-22 | Density detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203350154U true CN203350154U (en) | 2013-12-18 |
Family
ID=49750038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320435652 Expired - Lifetime CN203350154U (en) | 2013-07-22 | 2013-07-22 | Density detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203350154U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635770A (en) * | 2015-01-09 | 2015-05-20 | 山西太钢不锈钢股份有限公司 | Classifier control method based on pulp pump sump liquid level as main control parameter |
| CN106198309A (en) * | 2016-08-30 | 2016-12-07 | 长沙长泰机器人有限公司 | Density of Emulsion Explosive intelligent checking system and method |
| CN114839107A (en) * | 2022-05-18 | 2022-08-02 | 中国矿业大学 | Intelligent detection method for pipeline pulp density |
| CN116223297A (en) * | 2022-12-13 | 2023-06-06 | 大唐湘潭发电有限责任公司 | Slurry densimeter |
-
2013
- 2013-07-22 CN CN 201320435652 patent/CN203350154U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635770A (en) * | 2015-01-09 | 2015-05-20 | 山西太钢不锈钢股份有限公司 | Classifier control method based on pulp pump sump liquid level as main control parameter |
| CN104635770B (en) * | 2015-01-09 | 2017-05-24 | 山西太钢不锈钢股份有限公司 | Classifier control method based on pulp pump sump liquid level as main control parameter |
| CN106198309A (en) * | 2016-08-30 | 2016-12-07 | 长沙长泰机器人有限公司 | Density of Emulsion Explosive intelligent checking system and method |
| CN106198309B (en) * | 2016-08-30 | 2019-02-26 | 长沙长泰机器人有限公司 | Density of Emulsion Explosive intelligent checking system and method |
| CN114839107A (en) * | 2022-05-18 | 2022-08-02 | 中国矿业大学 | Intelligent detection method for pipeline pulp density |
| CN116223297A (en) * | 2022-12-13 | 2023-06-06 | 大唐湘潭发电有限责任公司 | Slurry densimeter |
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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: 20131218 |
|
| CX01 | Expiry of patent term |