CN209014091U - A kind of mounting device of guide wave radar level gauge - Google Patents
A kind of mounting device of guide wave radar level gauge Download PDFInfo
- Publication number
- CN209014091U CN209014091U CN201821762154.4U CN201821762154U CN209014091U CN 209014091 U CN209014091 U CN 209014091U CN 201821762154 U CN201821762154 U CN 201821762154U CN 209014091 U CN209014091 U CN 209014091U
- Authority
- CN
- China
- Prior art keywords
- level gauge
- radar level
- wave radar
- guide wave
- mounting device
- 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)
Abstract
A kind of mounting device of guide wave radar level gauge, including protection pipe are evenly equipped with through-hole on the protection tube wall, and protection pipe one end is connected with flange, and the other end is opening.The utility model can guarantee the safety of guide wave radar level gauge, reduce the cost of measurement and the work load of staff.
Description
Technical field
The utility model relates to instrument and meter for automation Level measurement technical field, specifically a kind of guide wave radar level gauge
Mounting device.
Background technique
Guide wave radar level gauge is the radar level gauge based on foundation Time Domain Reflectometry principle (TDR), radar level gauge
Electromagnetic pulse prolongs probe with the light velocity or wirerope is propagated, and when encountering measured medium surface, the partial pulse of radar level gauge is anti-
It penetrates, form echo and returns to impulse starter, emitter same pulse at a distance from measured medium surface along same paths
Propagation time therebetween is directly proportional, and liquid level is calculated through radar level gauge signal conversion unit.
Guide wave radar level gauge measurement not by tank body shape influenced also not by, temperature, pressure and density influenced, guided wave
The measurement length of radar level gauge can be changed flexibly, and measurement has the advantages that high-precision, repeatability, high-resolution.
But since radar wave is a kind of electromagnetic wave, reflectivity is influenced by following condition: " attenuation rate and conductivity and
The square root of magnetic conductivity is directly proportional, is inversely proportional with the square root of dielectric constant ".That is the dielectric constant of target object is got over
Greatly, attenuation rate is smaller, and the small reflectivity of attenuation rate is with regard to big.So dielectric constant is big, reflectivity is strong, and signal strength is high；Otherwise it is situated between
Electric constant is small, and reflectivity is with regard to small, and signal strength is with regard to weak.The polarity and amplitude of echo depend on Jie of top dielectric and layer dielectric
Electric constant.
When measuring liquid level instrument using guide wave radar liquid level gauge, limited by mounting condition, if installation site is very
When changing dielectric constant constantly close to feed inlet or gas-liquid medium state unstable, the polarity of radar level gauge echo and
Amplitude will generate variation, cause instrument measurement unstable, fluctuating range is especially big.Existing installation method is in processing problems
When, the solution of problem is usually carried out from the following aspects:
1. changing intrinsic installation site, the aperture again in equipment by force makes the equipment safety performance for measuring material position
It is destroyed；
2. the level-sensing device for replacing other measurement methods carries out test installation, increase measurement cost further；
3. discarded carry out level gauging using level-sensing device, it is monitored using manually round-the-clock, makes the labour of producers
Load increases, simultaneously because security risk caused by the carelessness of personnel also further increases.
Utility model content
The utility model provides a kind of mounting device of guide wave radar level gauge, it is ensured that guide wave radar level gauge
Safety reduces the cost of measurement and the work load of staff:
The utility model is achieved through the following technical solutions:
A kind of mounting device of guide wave radar level gauge, including protection pipe are evenly equipped with through-hole on the protection tube wall, protect
Pillar one end is connected with flange, and the other end is opening.
Through-hole diameter on the protection tube wall is more than or equal to 10mm.
Spacing between the through-hole is 190-210mm.
The through-hole is symmetrically distributed on the tube wall of protection pipe two sides.
The utility model has the beneficial effects that the mounting device of the utility model guide wave radar level gauge and existing mounting technique
Compared to having the advantage that
1. the utility model does not have to change intrinsic installation site, without aperture destruction is set again in equipment by force
Standby security performance.
2. the utility model protects through-hole uniformly distributed on tube wall to can solve level gauging to increase a protection pipe
The problem of inaccuracy, measurement cost not will increase.
3. the utility model, which does not have to discard, carries out level gauging using level-sensing device, the labour that not will increase producers is negative
Security risk is also not present in lotus.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the utility model and guide wave radar level gauge positional diagram；
In figure: 1 protection pipe；2 through-holes；3 flanges；4 guide wave radar level gauges.
Specific embodiment
Referring to Fig. 1 and Fig. 2, a kind of mounting device of guide wave radar level gauge, including protection pipe 1, the protection pipe 1 are managed
Through-hole 2 is evenly equipped on wall, 1 one end of protection pipe is connected with flange 3, and the other end is opening.
2 diameter of through-hole on 1 tube wall of protection pipe is not less than 10mm, and the spacing between the through-hole 2 is 190-
210mm guarantees the accuracy of level gauging.
The through-hole 2 is symmetrically distributed on 1 two sides tube wall of protection pipe, convenient for by the tube wall of the non-aperture of protection pipe adjust into
Material mouth or the unstable direction of gas-liquid medium state are to guarantee the accuracy of level gauging.
The specific work process of the utility model: it by the detector bar insertion protection pipe 1 of guide wave radar level gauge 2, protects
Pipe 1 is protection metal pipe, convenient for enhancing its reflection, the 2 mounting flange intermediate pressure of flange and guide wave radar level gauge of protection pipe 1
Pad, two flange screws alignment, is inserted into level gauging mounting hole, the tube wall of the non-aperture of protection metal pipe is adjusted to charging
Mouthful or the unstable direction of gas-liquid medium state, finally closely connected using bolt.
Claims (4)
1. a kind of mounting device of guide wave radar level gauge, it is characterised in that: including protection pipe (1), protection pipe (1) tube wall
On be evenly equipped with through-hole (2), protection pipe (1) one end is connected with flange (3), the other end be opening.
2. a kind of mounting device of guide wave radar level gauge according to claim 1, it is characterised in that: the protection pipe
(1) (2) diameter of the through-hole on tube wall is more than or equal to 10mm.
3. a kind of mounting device of guide wave radar level gauge according to claim 2, it is characterised in that: the through-hole (2)
Between spacing be 190-210mm.
4. the mounting device of any one guide wave radar level gauge according to claim 1,2 or 3, it is characterised in that: institute
Through-hole (2) is stated symmetrically to be distributed on the tube wall of protection pipe (1) two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821762154.4U CN209014091U (en) | 2018-10-29 | 2018-10-29 | A kind of mounting device of guide wave radar level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821762154.4U CN209014091U (en) | 2018-10-29 | 2018-10-29 | A kind of mounting device of guide wave radar level gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209014091U true CN209014091U (en) | 2019-06-21 |
Family
ID=66840543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821762154.4U Expired - Fee Related CN209014091U (en) | 2018-10-29 | 2018-10-29 | A kind of mounting device of guide wave radar level gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209014091U (en) |
-
2018
- 2018-10-29 CN CN201821762154.4U patent/CN209014091U/en not_active Expired - Fee Related
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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: 20190621 Termination date: 20191029 |