CN203203658U - Pressure-type water-level measuring device - Google Patents
Pressure-type water-level measuring device Download PDFInfo
- Publication number
- CN203203658U CN203203658U CN2013202451393U CN201320245139U CN203203658U CN 203203658 U CN203203658 U CN 203203658U CN 2013202451393 U CN2013202451393 U CN 2013202451393U CN 201320245139 U CN201320245139 U CN 201320245139U CN 203203658 U CN203203658 U CN 203203658U
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- CN
- China
- Prior art keywords
- pressure
- water
- shield
- pressure transducer
- proof cable
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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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a pressure-type water-level measuring device and belongs to the technical field of water conservancy measuring. According to the technical scheme, a pressure cover (1) is of a blank pipe structure, the lower end of the pressure cover is opened, the upper end of the pressure cover (1) is sealed through a pressure sensor (2), the pressed portion of the pressure sensor is communicated with the inner portion of the pressure cover, the pressure cover and the pressure sensor form a sealed container, and the lower end of the sealed container is open. The pressure sensor is connected with a waterproof cable (3), and the waterproof cable is connected with an intelligent instrument (4). Measured medium water and the pressure sensor are separated in the middle through compressed air, the pressure of air in the pressure cover changes accordingly, the changed pressure is detected by the pressure sensor and transmitted to the intelligent instrument through the waterproof cable, and therefore a value of the water depth can be obtained. The pressure-type water-level measuring device can be used for water-level measurement of a heavy-sediment riverway, such as measurement of the water level of the Yellow River and can be used for water-level measurement of complicated water quality, such as measurement of the level of the underground water which contains salt and alkali. The pressure cover structure can prevent the pressure sensor from being blocked and prevent the performance of the pressure sensor form drifting.
Description
Technical field
The utility model relates to a kind of pressure type level measurement device, belongs to the water conservancy field of measuring technique.
Background technology
At present; in the water conservancy industry; level measuring often adopts the throw-in type water-level gauge; the problem that background technology exists is: the pressure transducer of its equipment is submerged in the measured WATER AS FLOW MEDIUM; owing to usually can contain silt in the WATER AS FLOW MEDIUM; particularly be applied to the occasion of agricultural irrigation; the perhaps relatively poor occasion that has influence on pressure transducer pressure membrane characteristic of water quality; can cause the obstruction of sensor or the drift of constant property; so that the user often needs the calibration water level or can't obtain measurement data at all, use administrative authority thereby seriously perplex.
The utility model content
The utility model purpose provides a kind of pressure type level measurement device, adopts gas can cause that measured medium water and the pressure transducer of problem isolate, thereby fundamentally avoids solving the problems referred to above that exist in the background technology.
The technical solution of the utility model is:
A kind of pressure type level measurement device comprises pressure shield, pressure transducer, water-proof cable and intelligence instrument; Pressure shield is the blank pipe structure, and the lower end is opened wide, upper end adopts pressure sensor shutoff, and the part in compression of pressure transducer and pressure shield internal communication, pressure shield and pressure transducer consist of the closed container of a lower ending opening together; Pressure transducer is connected with water-proof cable, and water-proof cable connects intelligence instrument; The part of described pressure shield, pressure transducer and water-proof cable immerses in the measured medium water, inner in pressure shield, the lower end is the measured medium water that enters, the centre is compressed air, be pressure transducer topmost, measured medium water and pressure transducer by the compression air spaced intermediate, variation along with the depth of water, cause the pressure of the air of pressure shield inside to change thereupon, the pressure that changes is detected by pressure transducer, be delivered to intelligence instrument by water-proof cable, thus the depth of water numerical value that arrives, namely water level value.
The relative position of pressure shield, pressure transducer and water-proof cable is pressure shield bottom, and the pressure transducer shutoff of the upper end of pressure shield up is water-proof cable and intelligence instrument again.
Described pressure transducer can be absolute pressure formula or non-absolute pressure formula.
Described water-proof cable inside can comprise snorkel or not comprise snorkel.
Described pressure transducer, water-proof cable are techniques well known.
The utility model measuring method:
1. adopt the pressure type level measurement device to measure, this device comprises pressure shield, pressure transducer, water-proof cable and intelligence instrument, pressure shield is the blank pipe structure, the lower end is opened wide, upper end adopts pressure sensor shutoff, the part in compression of pressure transducer and pressure shield internal communication, pressure shield and pressure transducer consist of the closed container of a lower ending opening together; Pressure transducer is connected with water-proof cable, and water-proof cable connects intelligence instrument;
2. the relative position of pressure shield, pressure transducer and water-proof cable is pressure shield bottom, and the upper end of pressure shield up is water-proof cable with the airtight shutoff of pressure transducer again;
3. pressure shield, pressure transducer and water-proof cable are dipped into when surveying in the WATER AS FLOW MEDIUM, and the order of entry is: at first the pressure shield lower end begins, secondly pressure transducer, at last water-proof cable;
4. after the entry of pressure shield lower end, part water enters in the pressure shield, because the upper end of pressure shield is by the pressure transducer shutoff, so that the air of pressure shield inside can't be escaped, inner in pressure shield, the lower end is the measured medium water that enters, and the centre is compressed air, be pressure transducer topmost, measured medium water and pressure transducer by the air that compresses spaced intermediate; Along with the variation of the depth of water, cause the pressure of the air of pressure shield inside to change thereupon, the pressure of variation is detected by pressure transducer, is delivered to intelligence instrument by water-proof cable, thus the depth of water numerical value that arrives, namely water level value;
5. inner in pressure shield, the lower end is the measured medium water that enters, the centre is compressed air, be pressure transducer topmost, measured medium water and pressure transducer by the compression air spaced intermediate, therefore water quality can not have influence on pressure transducer, and the inner most spaces of the pressure shield air that is compressions, and the space pressure cover that the pressure transducer front end of comparing is very little is more difficult blocked.
Described pressure shield is a metal tube or nonmetallic pipe.
The beneficial effects of the utility model are: 1. can be used for the level measuring in high concentration of sediment river course, for example the Yellow River level measuring; 2. the level measuring that can be used for complicated water quality for example contains the underground water level measurement of saline alkali; 3. the pressure shield structure is avoided obstruction and the performance drift of pressure transducer.
Description of drawings
Accompanying drawing 1 is the utility model embodiment schematic diagram;
Among the figure: pressure shield 1, pressure transducer 2, water-proof cable 3, intelligence instrument 4.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.
A kind of pressure type level measurement device comprises pressure shield 1, pressure transducer 2, water-proof cable 3 and intelligence instrument 4; Pressure shield is the blank pipe structure, and the lower end is opened wide, upper end adopts pressure sensor shutoff, and the part in compression of pressure transducer and pressure shield internal communication, pressure shield and pressure transducer consist of the closed container of a lower ending opening together; Pressure transducer is connected with water-proof cable, and water-proof cable connects intelligence instrument; The part of described pressure shield, pressure transducer and water-proof cable immerses in the measured medium water, inner in pressure shield, the lower end is the measured medium water that enters, the centre is compressed air, be pressure transducer topmost, measured medium water and pressure transducer by the compression air spaced intermediate, variation along with the depth of water, cause the pressure of the air of pressure shield inside to change thereupon, the pressure that changes is detected by pressure transducer, be delivered to intelligence instrument by water-proof cable, thus the depth of water numerical value that arrives, namely water level value.
The relative position of pressure shield, pressure transducer and water-proof cable is pressure shield bottom, and the pressure transducer shutoff of the upper end of pressure shield up is water-proof cable and intelligence instrument again.
Described pressure transducer can be absolute pressure formula or non-absolute pressure formula.
Described water-proof cable inside can comprise snorkel or not comprise snorkel.
The utility model measuring method:
1. adopt the pressure type level measurement device to measure, this device comprises pressure shield 1, pressure transducer 2, water-proof cable 3 and intelligence instrument 4, pressure shield is the blank pipe structure, the lower end is opened wide, upper end adopts pressure sensor shutoff, the part in compression of pressure transducer and pressure shield internal communication, pressure shield and pressure transducer consist of the closed container of a lower ending opening together; Pressure transducer is connected with water-proof cable, and water-proof cable connects intelligence instrument;
2. the relative position of pressure shield, pressure transducer and water-proof cable is pressure shield bottom, and the upper end of pressure shield up is water-proof cable with the airtight shutoff of pressure transducer again;
3. pressure shield, pressure transducer and water-proof cable are dipped into when surveying in the WATER AS FLOW MEDIUM, and the order of entry is: at first the pressure shield lower end begins, secondly pressure transducer, at last water-proof cable;
4. after the entry of pressure shield lower end, part water enters in the pressure shield, because the upper end of pressure shield is by the pressure transducer shutoff, so that the air of pressure shield inside can't be escaped, along with the variation of the depth of water, cause the pressure of the air of pressure shield inside to change thereupon, the pressure that changes is detected by pressure transducer, be delivered to intelligence instrument by water-proof cable, thus the depth of water numerical value that arrives, namely water level value;
5. inner in pressure shield, the lower end is the measured medium water that enters, the centre is compressed air, be pressure transducer topmost, measured medium water and pressure transducer by the compression air spaced intermediate, therefore water quality can not have influence on pressure transducer, and the inner most spaces of the pressure shield air that is compressions, and the space pressure cover that the pressure transducer front end of comparing is very little is more difficult blocked.
Described pressure shield is a metal tube or nonmetallic pipe.
Claims (7)
1. a pressure type level measurement device is characterized in that: comprise pressure shield (1), pressure transducer (2), water-proof cable (3) and intelligence instrument (4); Pressure shield is the blank pipe structure, and the lower end is opened wide, upper end adopts pressure sensor shutoff, and the part in compression of pressure transducer and pressure shield internal communication, pressure shield and pressure transducer consist of the closed container of a lower ending opening together; Pressure transducer is connected with water-proof cable, and water-proof cable connects intelligence instrument.
2. pressure type level measurement device according to claim 1, it is characterized in that: the part of described pressure shield, pressure transducer and water-proof cable immerses in the measured medium water, inner in pressure shield, the lower end is the measured medium water that enters, the centre is compressed air, be pressure transducer topmost, measured medium water and pressure transducer by the air that compresses spaced intermediate.
3. pressure type level measurement device according to claim 1 and 2 is characterized in that pressure shield (1) is a metal tube.
4. pressure type level measurement device according to claim 1 and 2 is characterized in that pressure shield (1) is a nonmetallic pipe.
5. pressure type level measurement device according to claim 1 and 2 is characterized in that pressure transducer (2) is the absolute pressure type sensor.
6. pressure type level measurement device according to claim 1 and 2 is characterized in that pressure transducer (2) is non-absolute pressure type sensor.
7. pressure type level measurement device according to claim 1 and 2 is characterized in that water-proof cable (3) inside comprises airway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202451393U CN203203658U (en) | 2013-05-09 | 2013-05-09 | Pressure-type water-level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202451393U CN203203658U (en) | 2013-05-09 | 2013-05-09 | Pressure-type water-level measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203203658U true CN203203658U (en) | 2013-09-18 |
Family
ID=49147758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202451393U Withdrawn - After Issue CN203203658U (en) | 2013-05-09 | 2013-05-09 | Pressure-type water-level measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203203658U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267555A (en) * | 2013-05-09 | 2013-08-28 | 唐山现代工控技术有限公司 | Pressure-type water level measuring method and pressure-type water level measuring device |
| CN104457902A (en) * | 2014-12-18 | 2015-03-25 | 重庆多邦科技发展有限公司 | Reservoir water rain condition automatic forecasting system |
-
2013
- 2013-05-09 CN CN2013202451393U patent/CN203203658U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267555A (en) * | 2013-05-09 | 2013-08-28 | 唐山现代工控技术有限公司 | Pressure-type water level measuring method and pressure-type water level measuring device |
| CN103267555B (en) * | 2013-05-09 | 2016-08-03 | 唐山现代工控技术有限公司 | A kind of pressure type water level measurement method and device |
| CN104457902A (en) * | 2014-12-18 | 2015-03-25 | 重庆多邦科技发展有限公司 | Reservoir water rain condition automatic forecasting system |
| CN104457902B (en) * | 2014-12-18 | 2018-01-30 | 重庆多邦科技发展有限公司 | A kind of reservoir water rain regime automatic measure and forecast system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130918 Effective date of abandoning: 20160803 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |