CN103267555B - A kind of pressure type water level measurement method and device - Google Patents
A kind of pressure type water level measurement method and device Download PDFInfo
- Publication number
- CN103267555B CN103267555B CN201310166890.9A CN201310166890A CN103267555B CN 103267555 B CN103267555 B CN 103267555B CN 201310166890 A CN201310166890 A CN 201310166890A CN 103267555 B CN103267555 B CN 103267555B
- Authority
- CN
- China
- Prior art keywords
- pressure
- water
- shield
- pressure transducer
- proof cable
- 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.)
- Active
Links
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention relates to a kind of pressure type water level measurement method and device, belong to technical field of water conservancy measurement.Technical scheme is: pressure shield (1) is hollow tubular structure, open at its lower end, and upper end uses pressure transducer (2) closure, and the part in compression of pressure transducer is internal with pressure shield to be connected, and pressure shield constitutes the hermetic container of a lower ending opening together with pressure transducer；Pressure transducer connects water-proof cable (3), and water-proof cable connects intelligence instrument (4)；Measured medium water with pressure transducer by the air compressed spaced intermediate, the pressure of the air within pressure shield changes therewith, and the pressure of change is detected by pressure transducer, is delivered to intelligence instrument by water-proof cable, thus the depth of water numerical value arrived.The present invention can be used for the level measuring in high concentration of sediment river course, such as the Yellow River level measuring；Can be used for the level measuring of complicated water quality, such as, contain the underground water level measurement of saline alkali；Pressure shield structure avoids blocking and the performance drift of pressure transducer.
Description
Technical field
The present invention relates to a kind of pressure type water level measurement method and device, belong to technical field of water conservancy measurement.
Background technology
At present; in water conservancy industry; level measuring is through frequently with throw-in type water-level gauge; background technology there is the problem that the pressure transducer of its equipment is submerged in measured WATER AS FLOW MEDIUM; owing to WATER AS FLOW MEDIUM would generally contain silt; it is especially applicable to the occasion of agricultural irrigation; or the poor occasion having influence on pressure transducer pressure membrane characteristic of water quality; blocking or the drift of constant property of sensor can be caused; make user often need calibration water level or measurement data cannot be obtained at all, thus seriously puzzlement uses administration section.
Summary of the invention
It is an object of the present invention to provide a kind of pressure type water level measurement method and device, use gas to be isolated with pressure transducer by the measured medium water that can cause problem, thus fundamentally avoid solving the problems referred to above present in background technology.
The technical scheme is that
A kind of pressure type level measurement device, comprises pressure shield, pressure transducer, water-proof cable and intelligence instrument；Pressure shield is hollow tubular structure, open at its lower end, and upper end uses pressure transducer closure, and the part in compression of pressure transducer is internal with pressure shield to be connected, and pressure shield constitutes the hermetic container of a lower ending opening together with pressure transducer；Pressure transducer connects water-proof cable, and water-proof cable connects intelligence instrument；A part for described pressure shield, pressure transducer and water-proof cable immerses in measured medium water, inside pressure shield, lower end is the measured medium water entered, centre is compressed air, it is topmost pressure transducer, measured medium water with pressure transducer by the air compressed spaced intermediate, change along with the depth of water, the pressure causing the air within pressure shield changes therewith, the pressure of change is detected by pressure transducer, it is delivered to intelligence instrument by water-proof cable, thus the depth of water numerical value arrived, namely water level value.
Pressure shield, pressure transducer and the relative position of water-proof cable be pressure shield in bottom, the upper end of pressure shield pressure transducer blocks, then is up water-proof cable and intelligence instrument.
Described pressure transducer can be absolute pressure formula or non-absolute pressure formula.
Breather can be comprised inside described water-proof cable or do not comprise breather.
Described pressure transducer, water-proof cable are known in the art technology.
A kind of pressure type water level measurement method, comprises the steps of:
1. pressure type level measurement device is used to measure, this device comprises pressure shield, pressure transducer, water-proof cable and intelligence instrument, pressure shield is hollow tubular structure, open at its lower end, upper end uses pressure transducer closure, the part in compression of pressure transducer is internal with pressure shield to be connected, and pressure shield constitutes the hermetic container of a lower ending opening together with pressure transducer；Pressure transducer connects water-proof cable, and water-proof cable connects intelligence instrument；
2. the relative position of pressure shield, pressure transducer and water-proof cable be pressure shield in bottom, the airtight closure of upper end pressure transducer of pressure shield, then be up water-proof cable；
3. time during pressure shield, pressure transducer and water-proof cable are dipped into survey WATER AS FLOW MEDIUM, the order entering water is: first pressure shield lower end starts, secondly pressure transducer, last water-proof cable；
4. after pressure shield lower end enters water, part water enters in pressure shield, owing to the upper end of pressure shield is blocked by pressure transducer, air within pressure shield cannot be escaped, inside pressure shield, lower end is the measured medium water entered, and centre is compressed air, be topmost pressure transducer, measured medium water with pressure transducer by the air compressed spaced intermediate；Along with the change of the depth of water, causing the pressure of the air within pressure shield to change therewith, the pressure of change is detected by pressure transducer, is delivered to intelligence instrument by water-proof cable, thus the depth of water numerical value arrived, namely water level value；
5. inside pressure shield, lower end is the measured medium water entered, centre is compressed air, it is topmost pressure transducer, measured medium water with pressure transducer by the air compressed spaced intermediate, therefore water quality does not interferes with pressure transducer, and pressure shield internal overwhelming majority spaces are the air of compression, and the least space pressure cover in the pressure transducer front end that compares is more difficult blocked.
Described pressure shield is a metal tube or non-metallic pipe.
The invention has the beneficial effects as follows: 1. can be used for the level measuring in high concentration of sediment river course, such as the Yellow River level measuring；2. can be used for the level measuring of complicated water quality, such as, contain the underground water level measurement of saline alkali；3. pressure shield structure avoids blocking and the performance drift of pressure transducer.
Accompanying drawing explanation
Accompanying drawing 1 is embodiment of the present invention schematic diagram；
In figure: pressure shield 1, pressure transducer 2, water-proof cable 3, intelligence instrument 4.
Detailed description of the invention
Below in conjunction with accompanying drawing, by embodiment, the invention will be further described.
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 hollow tubular structure, open at its lower end, and upper end uses pressure transducer closure, and the part in compression of pressure transducer is internal with pressure shield to be connected, and pressure shield constitutes the hermetic container of a lower ending opening together with pressure transducer；Pressure transducer connects water-proof cable, and water-proof cable connects intelligence instrument；A part for described pressure shield, pressure transducer and water-proof cable immerses in measured medium water, inside pressure shield, lower end is the measured medium water entered, centre is compressed air, it is topmost pressure transducer, measured medium water with pressure transducer by the air compressed spaced intermediate, change along with the depth of water, the pressure causing the air within pressure shield changes therewith, the pressure of change is detected by pressure transducer, it is delivered to intelligence instrument by water-proof cable, thus the depth of water numerical value arrived, namely water level value.
Pressure shield, pressure transducer and the relative position of water-proof cable be pressure shield in bottom, the upper end of pressure shield pressure transducer blocks, then is up water-proof cable and intelligence instrument.
Described pressure transducer can be absolute pressure formula or non-absolute pressure formula.
Breather can be comprised inside described water-proof cable or do not comprise breather.
A kind of pressure type water level measurement method, comprises the steps of:
1. pressure type level measurement device is used to measure, this device comprises pressure shield 1, pressure transducer 2, water-proof cable 3 and intelligence instrument 4, pressure shield is hollow tubular structure, open at its lower end, upper end uses pressure transducer closure, the part in compression of pressure transducer is internal with pressure shield to be connected, and pressure shield constitutes the hermetic container of a lower ending opening together with pressure transducer；Pressure transducer connects water-proof cable, and water-proof cable connects intelligence instrument；
2. the relative position of pressure shield, pressure transducer and water-proof cable be pressure shield in bottom, the airtight closure of upper end pressure transducer of pressure shield, then be up water-proof cable；
3. time during pressure shield, pressure transducer and water-proof cable are dipped into survey WATER AS FLOW MEDIUM, the order entering water is: first pressure shield lower end starts, secondly pressure transducer, last water-proof cable；
4. after pressure shield lower end enters water, part water enters in pressure shield, owing to the upper end of pressure shield is blocked by pressure transducer, air within pressure shield cannot be escaped, along with the change of the depth of water, cause the pressure of the air within pressure shield to change therewith, the pressure of change is detected by pressure transducer, it is delivered to intelligence instrument by water-proof cable, thus the depth of water numerical value arrived, namely water level value；
5. inside pressure shield, lower end is the measured medium water entered, centre is compressed air, it is topmost pressure transducer, measured medium water with pressure transducer by the air compressed spaced intermediate, therefore water quality does not interferes with pressure transducer, and pressure shield internal overwhelming majority spaces are the air of compression, and the least space pressure cover in the pressure transducer front end that compares is more difficult blocked.
Described pressure shield is a metal tube or non-metallic pipe.
Claims (8)
1. a pressure type water level measurement method, it is characterised in that comprise the steps of:
1. pressure type level measurement device is used to measure, this device comprises pressure shield (1), pressure transducer (2), water-proof cable (3) and intelligence instrument (4), pressure shield is hollow tubular structure, open at its lower end, upper end uses pressure transducer closure, the part in compression of pressure transducer is internal with pressure shield to be connected, and pressure shield constitutes the hermetic container of a lower ending opening together with pressure transducer；Pressure transducer connects water-proof cable, and water-proof cable connects intelligence instrument；
2. the relative position of pressure shield, pressure transducer and water-proof cable be pressure shield in bottom, the airtight closure of upper end pressure transducer of pressure shield, then be up water-proof cable；
3. time during pressure shield, pressure transducer and water-proof cable are dipped into survey WATER AS FLOW MEDIUM, the order entering water is: first pressure shield lower end starts, secondly pressure transducer, last water-proof cable；
4. after pressure shield lower end enters water, part water enters in pressure shield, owing to the upper end of pressure shield is blocked by pressure transducer, air within pressure shield cannot be escaped, inside pressure shield, lower end is the measured medium water entered, and centre is compressed air, be topmost pressure transducer, measured medium water with pressure transducer by the air compressed spaced intermediate；Along with the change of the depth of water, causing the pressure of the air within pressure shield to change therewith, the pressure of change is detected by pressure transducer, is delivered to intelligence instrument by water-proof cable, thus the depth of water numerical value arrived, namely water level value.
Pressure type water level measurement method the most according to claim 1, it is characterised in that pressure shield (1) is a metal tube or non-metallic pipe.
Pressure type water level measurement method the most according to claim 1 and 2, it is characterised in that pressure transducer (2) is absolute pressure type or non-absolute pressure type.
Pressure type water level measurement method the most according to claim 1 and 2, it is characterised in that water-proof cable (3) is internal to be comprised airway or does not comprise airway.
5. a pressure type level measurement device, it is characterised in that: comprise pressure shield (1), pressure transducer (2), water-proof cable (3) and intelligence instrument (4)；Pressure shield is hollow tubular structure, open at its lower end, and upper end uses pressure transducer closure, and the part in compression of pressure transducer is internal with pressure shield to be connected, and pressure shield constitutes the hermetic container of a lower ending opening together with pressure transducer；Pressure transducer connects water-proof cable, and water-proof cable connects intelligence instrument；A part for described pressure shield, pressure transducer and water-proof cable immerses in measured medium water, inside pressure shield, lower end is the measured medium water entered, centre is compressed air, it is topmost pressure transducer, measured medium water with pressure transducer by the air compressed spaced intermediate, change along with the depth of water, the pressure causing the air within pressure shield changes therewith, the pressure of change is detected by pressure transducer, it is delivered to intelligence instrument by water-proof cable, thus the depth of water numerical value arrived, namely water level value.
Pressure type level measurement device the most according to claim 5, it is characterised in that pressure shield (1) is a metal tube or non-metallic pipe.
7. according to the pressure type level measurement device described in claim 5 or 6, it is characterised in that pressure transducer (2) is absolute pressure type or non-absolute pressure type.
8. according to the pressure type level measurement device described in claim 5 or 6, it is characterised in that water-proof cable (3) is internal to be comprised airway or does not comprise airway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310166890.9A CN103267555B (en) | 2013-05-09 | 2013-05-09 | A kind of pressure type water level measurement method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310166890.9A CN103267555B (en) | 2013-05-09 | 2013-05-09 | A kind of pressure type water level measurement method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103267555A CN103267555A (en) | 2013-08-28 |
| CN103267555B true CN103267555B (en) | 2016-08-03 |
Family
ID=49011195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310166890.9A Active CN103267555B (en) | 2013-05-09 | 2013-05-09 | A kind of pressure type water level measurement method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103267555B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404124B (en) * | 2016-06-06 | 2023-05-09 | 广东工业大学 | Liquid level sensor |
| CN106197602A (en) * | 2016-07-27 | 2016-12-07 | 江苏方天电力技术有限公司 | A kind of contactless Chemical cleaning liquid level emasuring device and measuring method |
| CN110849438A (en) * | 2018-08-21 | 2020-02-28 | 江苏华淼电子科技有限公司 | Closed type uplifting pressure measuring structure |
| CN112729425A (en) * | 2020-11-26 | 2021-04-30 | 天地科技股份有限公司 | Underground open channel monitoring device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5547417A (en) * | 1978-10-02 | 1980-04-03 | Anritsu Corp | Water level indicator |
| CN2856942Y (en) * | 2005-06-03 | 2007-01-10 | 天水华天微电子有限公司 | High temp pressure guiding level transmitter |
| CN202757663U (en) * | 2012-06-25 | 2013-02-27 | 唐山现代工控技术有限公司 | Pressure-type water level measuring device |
| CN203203658U (en) * | 2013-05-09 | 2013-09-18 | 唐山现代工控技术有限公司 | Pressure-type water-level measuring device |
-
2013
- 2013-05-09 CN CN201310166890.9A patent/CN103267555B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5547417A (en) * | 1978-10-02 | 1980-04-03 | Anritsu Corp | Water level indicator |
| CN2856942Y (en) * | 2005-06-03 | 2007-01-10 | 天水华天微电子有限公司 | High temp pressure guiding level transmitter |
| CN202757663U (en) * | 2012-06-25 | 2013-02-27 | 唐山现代工控技术有限公司 | Pressure-type water level measuring device |
| CN203203658U (en) * | 2013-05-09 | 2013-09-18 | 唐山现代工控技术有限公司 | Pressure-type water-level measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103267555A (en) | 2013-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103267555B (en) | A kind of pressure type water level measurement method and device | |
| CN103868569A (en) | Device and setting method for measuring underground water level of vacuum drainage prepressing sealing membrane | |
| CN104316144B (en) | A kind of visualization measurement method of level of ground water under condition of negative pressure | |
| WO2013154360A3 (en) | Water leak-detecting ground water pressure testing apparatus | |
| CN104748801B (en) | A kind of water tank goes out the flow measurement device of stream | |
| CN104330132A (en) | Device and method for measuring underground water level under negative pressure condition | |
| CN105241616A (en) | Civil defense door airtightness detection apparatus with protection function | |
| CN100392362C (en) | Sealed oil tank liquid level transmitter | |
| CN103727995B (en) | Self-calibration liquid level sensor | |
| CN103592000B (en) | A kind of liquid level emasuring device | |
| CN103822689B (en) | One transformer station portable liquid pressure type transformer oil level detecting apparatus and detection method | |
| CN204064392U (en) | A kind of bubble method liquid level emasuring device | |
| CN203203658U (en) | Pressure-type water-level measuring device | |
| CN203310479U (en) | Vacuum preloading underground water level measuring device | |
| CN205102959U (en) | Tensile force measurement device under water | |
| CN106403889A (en) | Hydrostatic leveling instrument | |
| CN204461945U (en) | A kind of device for detecting water repellent electric cable water resistance characteristic | |
| CN203551033U (en) | Blowing type level gauge | |
| CN105258761B (en) | A kind of air bubble type water gauge and a kind of water body include husky quantity measuring method | |
| CN110849438A (en) | Closed type uplifting pressure measuring structure | |
| CN204253015U (en) | A kind of water supply well disturbance rejection liquid level monitor | |
| CN203132949U (en) | On-line densimeter | |
| CN204002755U (en) | A kind of magnetic induction liquid level interface instrument | |
| CN206450473U (en) | COLLECTING GAS SET OF FLOATING for seismic monitoring | |
| CN208313246U (en) | A kind of fluid pressure type measuring instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Pressure-type water level measuring method and pressure-type water level measuring device Effective date of registration: 20171019 Granted publication date: 20160803 Pledgee: China Merchants Bank, Limited by Share Ltd, Tangshan branch Pledgor: Tangshan Xiandai Engineering Controlling Technology Co., Ltd. Registration number: 2017990000970 |