CN86106957A - New-type ionization chamber tagging individual well is measured direction of groundwater flow flow velocity device - Google Patents
New-type ionization chamber tagging individual well is measured direction of groundwater flow flow velocity device Download PDFInfo
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- CN86106957A CN86106957A CN 86106957 CN86106957A CN86106957A CN 86106957 A CN86106957 A CN 86106957A CN 86106957 CN86106957 CN 86106957 CN 86106957 A CN86106957 A CN 86106957A CN 86106957 A CN86106957 A CN 86106957A
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Abstract
The invention belongs to technical field of radioactive measurement for wells.Invention provides in a kind of individual well (φ＞100 millimeter), and tagging is measured and is flowed to, the flow velocity device.The present invention is the further improvement to Chinese patent 86104175 described devices, the hollow metal post of IC and upper and lower two parts of device are housed to be connected as a single entity, have at least 3 hollow metal post symmetries that IC is housed to be spaced, the hollow metal post is a seal construction, wall towards dilution cavity center one side is thicker, and all the other are thinner.The irradiation value that winding is subjected to according to IC is made the flow direction, flow velocity.
Description
The invention belongs to technical field of radioactive measurement for wells.Relate to the device of measuring the direction of groundwater flow flow velocity in ionization chamber (being called for short IC) the tagging individual well.
The present invention is that the device that Chinese patent 86104175 is introduced is low in heavy caliber borehole measurement sensitivity to the further improvement of Chinese patent 86104175 described devices, and dose of an isotope is big.Task of the present invention be the design a kind of be applicable in heavy caliber borehole measurement sensitivity low, dose of an isotope is big.Task of the present invention is during to be that design is a kind of be applicable in the large-diameter well (φ＞100 millimeter) measures the device that flows to flow velocity, requires the measuring accuracy height, and dose of an isotope is few.
According to invention, to throw the source position and change throwing source, center into, the IC group places around the center, throwing source, and this just can improve measurement effect, reaches the desired purpose of invention.
Further illustrate each ins and outs of invention below according to accompanying drawing.
Shown in figure one, the hollow metal post (3) that IC is housed is connected as a single entity with the upper and lower two parts that install, the center section of constituent apparatus shell has three at least IC(1 is housed) hollow metal post symmetry be spaced, IC metal column interior or exterior space that group is enclosed is housed constitutes dilution cavity (2).The hollow metal post is a seal construction, and materials such as available copper or stainless steel are made.The hollow metal post is thicker towards the wall of dilution cavity center one side, and all the other are thinner.
Device is put into throwing source behind the borehole measurement position, and ear washing bulb (4) is subjected to the weight effect that isotope is sprayed into dilution chamber (2) center evenly to mix with water.Compare with Chinese patent 86104175 described devices, the isotopes concentration of IC group enclosed space is bigger, tracer isotope is done the mechanical dispersion motion in flow action lower edge water (flow) direction, outside IC hollow metal post group bleeder shell, because it is thicker towards the wall at dilution chamber center that the hollow metal post (3) of IC is housed, so maskable falls the irradiation from core, and the thin partly shielding effect effect (1) of wall, the tracer isotope of flow path can be measured by IC.IC is measured as integrated form, and the exposure maximum that IC received that Parallel to the flow direction is settled, and the direction exposure minimum that IC accepted of settling against the current can be determined the flow direction thus.
According to Chinese patent 86104175 and 85107160 computing method of being introduced, the average irradiation value that utilizes the IC group to be surveyed just can be obtained horizontal flow speed value.
Embodiment:
Example 1, as accompanying drawing one, two, contrive equipment diameter 90mm, ear washing bulb volume 30ml, IC diameter 13mm, long 110mm forms measure portion by 6 IC, and adjacent angle is 60 ° between IC, and the hollow metal post is made by copper material.
Example 2, as accompanying drawing one, three, contrive equipment diameter 105～120mm forms measure portion by 8 IC, and the hollow metal post is made by stainless steel, and adjacent angle is 45 ° between IC
Apparatus of the present invention are applicable in the well water of diameter phi＞100 millimeter and measure, and both have been applicable to that there is filter pipe the plains region, water-borne sediments and fills out in the well of gravel, are applicable to karst area again not in the cased borehole, and fathoming to reach hundreds of rice.Flow to error＜± 3%.Dose of an isotope is few, and each about 3.7 * 10
6B
9
Claims (7)
1, the invention belongs to the radioisotope tracing technique field.Measure the device of direction of groundwater flow flow velocity in a kind of new-type tagging individual well.Mainly form by throwing source, three systems of measurement and location, it is characterized in that: in measuring system, the one hollow metal post that is assembled with single IC is symmetrically placed in respectively in the dilution cavity, the part of constituent apparatus shell, hollow metal post enclosed space and the outer proximity space of shell that IC is housed constitute the dilution cavity.
2, according to claim 1 described device, it is characterized in that having at least 3 hollow metal posts that IC is housed respectively symmetry be seated in the dilution cavity.
3, according to claim 1,2 described devices, the hollow metal post that IC is housed is to make with copper product.
4, according to claim 1,2 described devices, the also available stainless steel material of hollow metal post that IC is housed is made.
5, according to claim 1,2 described devices, the hollow metal post that IC is housed adopts hermetically-sealed construction.
6, according to claim 1,2 described devices, the hollow metal post that IC is housed is thicker towards the wall at dilution cavity center, and all the other walls are thinner.
According to claim 1,2 described devices, it is characterized in that 7, the dilution chamber body is positioned at the source-projecting system below, the positioning system top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86106957 CN86106957A (en) | 1986-10-07 | 1986-10-07 | New-type ionization chamber tagging individual well is measured direction of groundwater flow flow velocity device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86106957 CN86106957A (en) | 1986-10-07 | 1986-10-07 | New-type ionization chamber tagging individual well is measured direction of groundwater flow flow velocity device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86106957A true CN86106957A (en) | 1988-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86106957 Pending CN86106957A (en) | 1986-10-07 | 1986-10-07 | New-type ionization chamber tagging individual well is measured direction of groundwater flow flow velocity device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86106957A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104203610A (en) * | 2012-01-25 | 2014-12-10 | 冷王公司 | Method for constructing air conditioning systems with universal base units |
-
1986
- 1986-10-07 CN CN 86106957 patent/CN86106957A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104203610A (en) * | 2012-01-25 | 2014-12-10 | 冷王公司 | Method for constructing air conditioning systems with universal base units |
| CN104203610B (en) * | 2012-01-25 | 2016-08-24 | 冷王公司 | The method building the air conditioning system with general basic building block |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |