CN2499804Y - High precision boundary measuring device - Google Patents
High precision boundary measuring device Download PDFInfo
- Publication number
- CN2499804Y CN2499804Y CN 01260341 CN01260341U CN2499804Y CN 2499804 Y CN2499804 Y CN 2499804Y CN 01260341 CN01260341 CN 01260341 CN 01260341 U CN01260341 U CN 01260341U CN 2499804 Y CN2499804 Y CN 2499804Y
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- guide pillar
- oil
- steel guide
- sensor
- Prior art date
- 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 - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Level Indicators Using A Float (AREA)
Abstract
A high precision measuring device for interface level belongs to the field of measuring device, which comprises a stainless steel tube positioned in a huge oil tank as a guide pole and a wire collecting tube. An oil-water interface level specific gravity ball is provided on the level corresponds to oil-water interface. A temperature sensor and a magnetic switch sensor are arranged from the base upward inside the stainless steel tube. Two hall switches are arranged on the inner wall at the upper part of the guide pole. A gas-oil interface level float is arranged outside the stainless steel guide pole at the gas-oil interface. All sensors are respectively connected with an anti-explosive junction box at the top of the stainless steel guide pole through feeder lines. The device has high measuring precision, good stability, low cost and low price, long service life, easy maintenance, and can be widely promoted and applied.
Description
(1) technical field
The utility model belongs to the measurement mechanism field, specially refers to be used for a kind of high precision circle level measuring arrangement that density is the crude oil oil tank of variable.
(2) background technology
In the Large Storage Tanks oil tank or other all kinds of large-scale jar of stocking chemical products of petrochemical enterprise, need to understand its liquid-aerosphere position, liquid-liquid circle position, quality, volume, day handling capacity and other physical parameter, during as parameters such as reference density, liquid level temperature, will measure basic parameter at any time, the simplest metering method in the past, be to measure by hand, utilize the reference scale on the container side wall, manually survey and read.This metering resultant error is bigger, and artificial intensity is also high.
Developed subsequently with the instrument and meter device and measured, as utilize the radar level gauge of radar wave principle, utilize the laser liquid level gauge of laser wave principle, utilize the magnetostriction liquidometer of magnetostriction principle etc., on measuring accuracy, can satisfy oil tank detection needs though more than measure boundary's method for position, but, be not suitable for field or open-air occasion use, and cost an arm and a leg because the radar meter requires work condition environment condition height; Laser liquid level gauge measuring accuracy height, but need often safeguard LASER Discharge Tube, and often change, bring very large trouble for use department, price is also expensive simultaneously, is difficult to apply; The magnetostriction liquidometer measuring accuracy is also higher, stable performance, but price is expensive more, and each oil tank need be paid the expense of ten thousand yuan of 12-20, and for the oil tank as if big quantity, domestic almost impotentia is used.
In order to improve measuring accuracy, reduce cost of products and selling price simultaneously, and improve the serviceable life of product, prolong maintenance period, the design people is through experiment repeatedly, the linear properties of pressure transducer or the linear properties of ultrasonic sensor have been proposed to utilize, cooperating oil gas circle position float to put enterprising line linearity at two Hall switch of fixed position calibrates automatically, make oil gas circle position measuring accuracy only relevant, and have nothing to do with oil density, viscosity, temperature with the linear characteristic of pressure transducer or ultrasonic sensor.Simultaneously irrelevant with performances such as the repeatability of sensor itself, temperature drift, sluggishnesses, this just makes that measuring oil gas circle position precision improves greatly, measurement 0-20 rice bran oil aerosphere position height, absolute error can be controlled in ± 4mm in, guaranteed user's request fully.Product price can be controlled within ten thousand yuan of the 1-1.5, is that the user is very easy to the price accepted.
(3) summary of the invention
The utility model technical issues that need to address, be in order to overcome in the Large Storage Tanks oil tank complex structure that had for existing boundary level measuring arrangement, cost an arm and a leg and to safeguard defectives such as loaded down with trivial details, and a kind of existing high-precision measurement performance is proposed again, have the measurement mechanism of characteristics such as with low cost, long service life again.Solving this technical problem the technical scheme that is adopted is, a kind of high precision circle level measuring arrangement, comprise a stainless-steel tube that is placed in the Large Storage Tanks oil tank as guide pillar and line concentration pipe, the bottom is provided with base, it is characterized in that, be provided with a profit circle position corresponding to the height of profit interface and compare heavy ball, upwards discharging a temperature sensor and magnetic switch sensor from base in the stainless steel guide pillar, above profit circle position, a ultrasonic sensor is housed on the stainless steel guide pillar tube wall, two Hall switch are equipped with in this sensor top, outside the stainless steel guide pillar pipe at oil gas interface place, an oil gas circle position float is housed, and each sensor is connected respectively in the anti-explosion terminal box at stainless steel guide pillar pipe top by feeder line, and guides in the extraneous secondary instrument and computer processing system.
Computer processing system Display Realization monitoring picture, the historical data curve of different time, multiparameter form, and report to the police etc.
Described stainless-steel tube wall has on the position of ultrasonic sensor, also can become pressure transducer by device, plays identical functions.
Described two Hall switch that are equipped with in stainless-steel tube inside, the position distance between them is between 4-6 rice.
The beneficial effect of this device is, this measurement device precision height can make the water-oil interface measuring accuracy reach ± 4mm, fully satisfies customer requirements, the good stability of device, and cost and price are low, and long service life, safeguard simple and easyly, make this device help applying.
(4) description of drawings
Fig. 1 is this boundary's level measuring arrangement structural representation
(5) embodiment
With reference to Fig. 1, Large Storage Tanks oil tank 1, its orlop is a water, the water layer top is an oil reservoir, it on the pasta atmosphere, vertical axle shape stainless steel guide pillar 3 is vertically fixed in the large oil tank, below the pipe is base 2, on the guide pillar tube wall of base top temperature sensor 5 and magnetic switch sensor 6 are housed, the water-oil interface place is a proportion spheroid 4, be equipped with on the tube wall that makes progress along the stainless steel guide pillar ultrasonic sensor 7 or pressure transducer 7 ', and two Hall switch 8,9, oil gas circle position float 10 is equipped with at the oil gas interface place, top of stainless steel guide pillar 3, and the top is an armored cassette 11, and the feeder line of its switching Hall switch and each sensor also is connected in the outside secondary instrument.
Claims (3)
1, a kind of high precision circle level measuring arrangement, comprise a stainless-steel tube that is placed in the Large Storage Tanks oil tank as guide pillar and line concentration pipe, the bottom is provided with base, it is characterized in that, be provided with a profit circle position corresponding to the height of profit interface and compare heavy ball, upwards discharging a temperature sensor and magnetic switch sensor from base in the stainless steel guide pillar, above profit circle position, a ultrasonic sensor is housed on the stainless steel guide pillar tube wall, two Hall switch are equipped with in this sensor top, outside the stainless steel guide pillar pipe at oil gas interface place, an oil gas circle position float is housed, each sensor is connected respectively in the anti-explosion terminal box at stainless steel guide pillar pipe top by feeder line, and guides in the extraneous secondary instrument and computer processing system.
According to the described measurement mechanism of claim 1, it is characterized in that 2, described stainless steel guide pillar tube wall is equipped with on the position of ultrasonic sensor, also can become pressure transducer by device.
3, according to the described measurement mechanism of claim 1, it is characterized in that, described two Hall switch that are equipped with in stainless steel guide pillar pipe inside, the position distance between them is between 4-6 rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260341 CN2499804Y (en) | 2001-09-17 | 2001-09-17 | High precision boundary measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260341 CN2499804Y (en) | 2001-09-17 | 2001-09-17 | High precision boundary measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2499804Y true CN2499804Y (en) | 2002-07-10 |
Family
ID=33668516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01260341 Expired - Fee Related CN2499804Y (en) | 2001-09-17 | 2001-09-17 | High precision boundary measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2499804Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393019B (en) * | 2008-10-31 | 2012-12-19 | 陕西长力石油科技开发有限公司 | Non-contact oil layer thickness detecting method |
| CN102913231A (en) * | 2012-10-22 | 2013-02-06 | 陈强 | Magnetic induction liquid level interface instrument |
| CN109506739A (en) * | 2018-10-12 | 2019-03-22 | 安徽中控仪表有限公司 | The metering method of oil well single tank on-line metering device and its oil and gas and water phase flow rate |
| CN111141366A (en) * | 2020-01-14 | 2020-05-12 | 北京远东仪表有限公司 | Multifunctional high-precision magnetostrictive tank area metering instrument |
-
2001
- 2001-09-17 CN CN 01260341 patent/CN2499804Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393019B (en) * | 2008-10-31 | 2012-12-19 | 陕西长力石油科技开发有限公司 | Non-contact oil layer thickness detecting method |
| CN102913231A (en) * | 2012-10-22 | 2013-02-06 | 陈强 | Magnetic induction liquid level interface instrument |
| CN109506739A (en) * | 2018-10-12 | 2019-03-22 | 安徽中控仪表有限公司 | The metering method of oil well single tank on-line metering device and its oil and gas and water phase flow rate |
| CN111141366A (en) * | 2020-01-14 | 2020-05-12 | 北京远东仪表有限公司 | Multifunctional high-precision magnetostrictive tank area metering instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |