CN206430790U - A kind of pressure type water gauge time drift detection means - Google Patents
A kind of pressure type water gauge time drift detection means Download PDFInfo
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- CN206430790U CN206430790U CN201621230283.XU CN201621230283U CN206430790U CN 206430790 U CN206430790 U CN 206430790U CN 201621230283 U CN201621230283 U CN 201621230283U CN 206430790 U CN206430790 U CN 206430790U
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- Prior art keywords
- water
- pressure type
- gauge
- time drift
- detection means
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Abstract
The utility model provides a kind of pressure type water gauge time drift detection means, a set of lowering or hoisting gear is each equipped with including two test wells, each test well, each lowering or hoisting gear lift side is respectively connected with instrument stan, instrument stan can be sent into test well by lift side, it is provided with instrument stan by inspection water-level gauge, respectively it is connected by inspection water-level gauge by signal cable with signal pickup assembly, each experiment well head is provided with needle water level gauge, for measuring the normal water level in test well, test well is also associated with water filling drainage system.Compared with prior art, the beneficial effects of the utility model are：Special equipment is provided for the time drift detection of pressure type water gauge, it is simple to operate, precision is high, it compensate for measurement range and precision that conventional detection devices are not reached, liquid level in test well is measured by needle water level gauge simultaneously, the control accuracy to constant level can be improved to the full extent, can screen out the instrument that actual performance is not inconsistent with nominal index in this quasi-instrument.
Description
Technical field
The utility model is related to water level monitoring instrument Product checking field, more particularly to a kind of drift of pressure type water gauge time
Move detection means.
Background technology
With continuing to develop for China's water conservancy construction, water level automatic monitor station point quantity is continuously increased, the reality of website monitoring
When property and the requirement more and more higher of the degree of accuracy.Pressure type water gauge as one kind very common in water level automatic monitor device,
More and more it is applied in field monitoring.The species of pressure type water gauge includes ceramic condenser, pressure resistance type, type vibration wire etc.
Deng due to the architectural characteristic of itself, its stability is the extremely important index of this quasi-instrument.At present, either famous foreign
Enterprise or domestic professional enterprise, the pressure type water gauge of production due to production manufacturing process and the difference of technological process,
Stability, reliability are uneven, and the technical indicator that the actual conditions of some products applications are nominal with product differs greatly, and causes
The accuracy of test data can not be guaranteed, therefore urgently need to carry out detection method for pressure type water gauge stability
And device, effective detection can be carried out with the means of the scientific and precise instrument uneven in the market, evaluated.
The stability of pressure type water gauge is the extremely critical performance indications of the quasi-instrument, and it is divided into time drift and temperature
Degree drift.For time drift, the requirement in present national standard for this index is that " 24h output shifts are no more than basic
Error ".In order to cater to higher and higher detection requirement, in the instrument and equipment produced in the market, the nominal index of producer
Reach that can ± 1 cm, some even more highs, but product reach that nominal index is unknown in actual use, with
The past project conventional detection, has no special aimed detection device, even if there is similar detection container, it effectively measures model
Enclose and be usually no more than 2m, and measurement accuracy is also undesirable, therefore pressure type water gauge time drift detection means just seems particularly
It is important.
The content of the invention
To solve the above problems, being directed to what pressure type water gauge time drift was detected the utility model discloses a kind of
Device.
In order to reach object above, the utility model provides following technical scheme：
A kind of pressure type water gauge time drift detection means, including two test wells, each test wells are each equipped with one
Lowering or hoisting gear is covered, each lowering or hoisting gear lift side is respectively connected with instrument stan, and the instrument stan can be sent into test well by lift side, institute
State and be provided with instrument stan by inspection water-level gauge, is respectively connected by inspection water-level gauge by signal cable with signal pickup assembly, each
Experiment well head is provided with needle water level gauge, and for measuring the normal water level in test well, two test wells are also associated with water filling draining
System.
Further, each lowering or hoisting gear includes electric block and the steel wire rope driven by electric block.
Further, the experiment bottom is provided with water injection mouthful, and the water injection system is connected with water injection mouthful.
Further, the water injection system includes being provided with valve on supplying drainage, the supplying drainage.
Further, the test well is stainless steel.
Compared with prior art, the beneficial effects of the utility model are：
Special equipment is provided for the time drift detection of pressure type water gauge, simple to operate, precision is high, compensate for tradition
Measurement range and precision that detection means is not reached, while being measured by needle water level gauge to liquid level in test well, energy
Enough control accuracies improved to the full extent to constant level, can screen out actual performance in this quasi-instrument and not be inconsistent with nominal index
Instrument.
Brief description of the drawings
Fig. 1 is a kind of structural representation of pressure type water gauge time drift detection means of the utility model.
Reference numerals list：
1- test wells, 11- gaps, 2- lowering or hoisting gears, 21- electric hoists, 22- steel wires, 3- instrument stans, 4- needle water level gauges,
5- signal pickup assemblies, 6- signal cables, 7- is by inspection sensor, 8- water filling drainage systems, 81- supplying drainages, 82- valves, 9-
Support frame, 10- support bars.
Embodiment
With reference to the accompanying drawings and detailed description, the utility model is further elucidated, it should be understood that following specific embodiment parties
Formula is merely to illustrate the utility model rather than limits scope of the present utility model.
Pressure type water gauge time drift detection means as shown in Figure 1, it is main to include outside two test wells 1, test well
Footpath is 315mm, is highly 1100mm, and material is 304 stainless steels, and the bottom of test well 1 is provided with pedestal.The top of two test well 1 is connected,
With ceiling, it is to avoid extraneous factor is disturbed.Each top of test well 1, which is provided with a set of lowering or hoisting gear 2, the utility model, to rise
Falling unit 2 is to be provided with steel wire rope on electric block, electric block to be lifted, and steel wire rope dropping section is connected with instrument stan 3, instrument
Device frame 3 can be sent into test well 1 by lift side, be to be placed on instrument stan 3 by inspection water-level gauge.Two test well well heads are respectively provided with
There is needle water level gauge 4, for measuring the normal water level in test well, as shown in figure 1, being provided with support frame by experiment well head, support
Frame top is fixed with support bar, and needle water level gauge is suspended in support bar end, head immersion test well in water, and range ability 0~
600mm, resolving power 0.1mm, error≤± 0.27mm.Two test wells 1 are connected with water filling drainage system 8, and experiment bottom is set
There is water injection mouthful, water injection system includes supplying drainage 81, and supplying drainage is connected with two experiment bottom water injections mouthful respectively,
Valve 82 is provided with supplying drainage, the water injection for Control experiment well.Gap 11 is additionally provided with the top of test well, is controlled
Water surface elevation in test well processed.Two test wells are relatively independent, can distinguish/while carrying out detection work to tested instrument.This
Outside, this pressure type water gauge time drift detection means also includes signal pickup assembly 5, is led to by the signal output part of inspection water-level gauge
The signal input part that signal cable 6 is crossed with signal pickup assembly 5 is connected.Needle water level gauge is by manually directly reading, it is not necessary to connect
Enter signal pickup assembly.
Before detection, by the pressure sensor retainer instrument frame by test examination instrument, signal cable is drawn along test well well head, will
Instrument stan is positioned over experiment bottom by the electric block of lowering or hoisting gear, and whole detection process ensures to be consolidated by inspection sensing station
Fixed constant, needle water level gauge is arranged on support frame upper support bar end at time drift device experiment well well head.
In detection process, continuously worked by normal mode of operation by inspection water-level gauge（Typically it is no less than under 10d, indoor environment,
Water temperature is deteriorated≤± 3 DEG C）, and numerical value continuous transmission will be detected to signal pickup assembly（Signal pickup assembly can use RTU）5
In, testing staff is daily 9：00、15：By needle water level gauge reading device internal standard water level value when 00,5min when reading every time
Interior continuous three measurements are averaged（Difference≤0.5mm of maxima and minima, is remeasured if more than if）, it is contemplated that the water surface
The influence to standard water place value is evaporated, ensures that constant level is constant in device by way of artificial recharge, and measured with temperature
Measure water temperature（At the 1m of underwater）, by the difference of the maxima and minima of the output valve of inspection water-level gauge, for the test point water level
The time drift measurement error of meter.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned embodiment, also
Including being combined constituted technical scheme by above technical characteristic.It should be pointed out that for the ordinary skill of the art
For personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and moistened
Decorations are also considered as protection domain of the present utility model.
Claims (5)
1. a kind of pressure type water gauge time drift detection means, it is characterised in that：It is equal including two test wells, each test well
A set of lowering or hoisting gear is configured with, each lowering or hoisting gear lift side is respectively connected with instrument stan, and the instrument stan can be sent into by lift side and be tried
Test in well, be provided with the instrument stan by inspection water-level gauge, respectively passed through signal cable and signal pickup assembly by inspection water-level gauge
It is connected, each experiment well head is provided with needle water level gauge, and for measuring the normal water level in test well, two test wells are also associated with
Water injection system.
2. pressure type water gauge time drift detection means according to claim 1, it is characterised in that：Each lowering or hoisting gear is equal
The steel wire rope driven including electric block and by electric block.
3. a kind of pressure type water gauge time drift detection means according to claim 1, it is characterised in that：The experiment
Bottom is provided with water injection mouthful, and the water injection system is connected with water injection mouthful.
4. a kind of pressure type water gauge time drift detection means according to claim 1, it is characterised in that：The note row
Water system includes being provided with valve on supplying drainage, the supplying drainage.
5. a kind of pressure type water gauge time drift detection means according to claim 1, it is characterised in that：The experiment
Well is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621230283.XU CN206430790U (en) | 2016-11-16 | 2016-11-16 | A kind of pressure type water gauge time drift detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621230283.XU CN206430790U (en) | 2016-11-16 | 2016-11-16 | A kind of pressure type water gauge time drift detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206430790U true CN206430790U (en) | 2017-08-22 |
Family
ID=59589073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621230283.XU Expired - Fee Related CN206430790U (en) | 2016-11-16 | 2016-11-16 | A kind of pressure type water gauge time drift detection means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206430790U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883519A (en) * | 2019-03-15 | 2019-06-14 | 河海大学 | A kind of water-level gauge testing calibration device and its detection method using twin-well |
| CN112504407A (en) * | 2020-11-19 | 2021-03-16 | 杨开村 | Pressure type water level gauge time drift detection device |
-
2016
- 2016-11-16 CN CN201621230283.XU patent/CN206430790U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883519A (en) * | 2019-03-15 | 2019-06-14 | 河海大学 | A kind of water-level gauge testing calibration device and its detection method using twin-well |
| CN112504407A (en) * | 2020-11-19 | 2021-03-16 | 杨开村 | Pressure type water level gauge time drift detection device |
| CN112504407B (en) * | 2020-11-19 | 2024-04-16 | 杨开村 | Pressure type water level timing time drift detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20201116 |