CN204043736U - Solution-type current surveying device - Google Patents
Solution-type current surveying device Download PDFInfo
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- CN204043736U CN204043736U CN201420356173.2U CN201420356173U CN204043736U CN 204043736 U CN204043736 U CN 204043736U CN 201420356173 U CN201420356173 U CN 201420356173U CN 204043736 U CN204043736 U CN 204043736U
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- solution
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Abstract
A kind of solution-type current surveying device, based on the design of solution dilut principle of measuring runoff, comprise one 90 degree bending cavitys to be used for access current to be measured, one section of tank, geneva bottle to be used for constant speed input solution and a solution concentration surveying instrument to detect the concentration of solution in geneva bottle with in tank exit and the background concentration of current to be measured.Cavity is connected with tank, and geneva bottle is installed in the top at tank top.The end of cavity arranges a Yong Shui bank, to make to flow out the current depth of water of this cavity and lateral velocity distribution evenly, the longitudinal profile of Yong Shui bank is triangle.Tank is the prism that a top is opened wide, and its length is not less than 9 times of the cavity xsect length of side.The measuring accuracy of the utility model to large discharge is high, can be used for measuring from the water flow of pipeline ejection, is particularly useful for the flow measurement that down-hole discharges water in boring large discharge water outlet situation.
Description
Technical field
The utility model relates to a kind of flow measurement device, is specifically related to a kind of solution-type current surveying device.
Background technology
The measurement of boring water flow of discharging water in down-hole outflow test is a basic and important job.The down-hole boring water outlet that discharges water has fluctuations in discharge scope greatly, sometimes carry the features such as a large amount of sandstone and gas secretly in water, in addition the singularity of down-hole outflow test condition of work, the instrument of general measuring channel inner fluid flow is made all to be not suitable for adopting, generally adopt container collection and the current that the pipeline that is connected flows out of hole that discharge water in practice, then by measuring vessel volume be full of this containers time and try to achieve flow.The method precision when flow is less is very high, but some discharges water boring, and flow is very big, and current spray with the pipeline of high speed from bore more than ten centimetre, and a bulk container is just full of by a few second, and now often error is very large for the flow that records of this method.Sometimes the weir such as triangular-notch weir or rectangular weir is also adopted to carry out flow measurement.Weir needs to connect longer one section of tank in weir plate upstream with smooth-going current, causes weir bulky, the carrying of inconvenient down-hole; In addition, weir is not suitable for the fluid with solid particle, and the sandstone carried secretly in the boring water outlet current that discharge water can be deposited on weir plate upstream, even can damage crest of weir, thus greatly affect the measuring accuracy of flow.
Summary of the invention
To discharge water in down-hole the not high deficiency of boring large discharge water outlet situation down-off measuring accuracy to overcome existing flow measurement technology, the utility model provides a kind of solution-type current surveying device, can measure the water flow of the high flow rate large discharge flowed out from pipeline more exactly.
The technical scheme that the utility model adopts is: a kind of solution-type current surveying device, based on the design of solution dilut principle of measuring runoff, comprise a cavity and throw in solution and a solution concentration surveying instrument to detect the concentration of solution in geneva bottle with in tank exit and the background concentration of current to be measured to be used for access current to be measured, one section of tank, geneva bottle to be used for constant speed.Cavity 90 degree bends, and tank is connected with cavity, and geneva bottle is installed in the top at tank top.The xsect of cavity is square, and its length of side equals 2 ~ 4 times of pipe caliber water flow jet to be measured being entered cavity.The end of cavity arranges a Yong Shui bank, to make to flow out the current depth of water of this cavity and lateral velocity distribution evenly, the longitudinal profile of Yong Shui bank is triangle, and it highly equals 1/6 of the cavity xsect length of side.Tank is the prism that a top is opened wide, and its length is not less than 9 times of the cavity xsect length of side.
The beneficial effects of the utility model are, high to the measuring accuracy of large discharge, flow rate calculation formula is simply and do not affect by plant bulk size, easy to produce and use, can be used for measuring from the water flow of pipeline ejection, be particularly useful for the flow measurement that down-hole discharges water in boring large discharge water outlet situation.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 of the present utility modelly faces structural representation.
In figure: 1-cavity, 2-tank, 3-geneva bottle, 4-solution concentration surveying instrument, 5-Yong Shui bank.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
As depicted in figs. 1 and 2, solution-type current surveying device mainly comprises a cavity 1, one section of tank 2, geneva bottle 3 and a solution concentration surveying instrument 4.Cavity 1 is 90 degree and bends, and tank 2 is connected with cavity 1, and geneva bottle 3 is installed in the top at tank 2 top.The xsect of cavity 1 is square, and its length of side equals 2 ~ 4 times of pipe caliber water flow jet to be measured being entered cavity 1.The end of cavity 1 arranges a Yong Shui bank 5, to make to flow out the current depth of water of this cavity 1 and lateral velocity distribution evenly, the longitudinal profile of Yong Shui bank 5 is triangle, and it highly equals 1/6 of the cavity 1 xsect length of side.Tank 2 is the prism that a top is opened wide, and its length is not less than 9 times of the cavity 1 xsect length of side.The water outlet height of geneva bottle 3 is fixed and is remained on the water surface, throws in realize solution constant speed.Solution concentration surveying instrument 4 is according to the optional conductivity meter of the kind of adopted solution, ion concentration instrument or fluorophotometer.
During use, first in geneva bottle 3, add certain solution certain density prepared, select will note requiring this solution easily determined and background value in current to be measured is lower during solution, again geneva bottle 3 is placed on tank 2, solution constant speed in bottle is rendered in tank 2 by the switch opened on geneva bottle 3, with in tank 2 survey current and mix, then certain solution concentration surveying instrument 4 is selected to measure the concentration C 1 of this solution in geneva bottle according to solution, background concentration C0 in current to be measured and the concentration C 2 in tank 2 exit, and measure by volumetric method (a kind of container required time being full of certain volume by measuring fluid calculates the flow measurement method of fluid flow) the flow q that geneva bottle 3 flows out solution, calculate water flow Q to be measured accordingly.
Flow rate calculation formula is: Q=(C1-C2)/(C2-C0) × q.
Claims (4)
1. a solution-type current surveying device, design based on solution dilut principle of measuring runoff, it is characterized in that: comprise a cavity and throw in solution and a solution concentration surveying instrument to detect the concentration of solution in geneva bottle with in tank exit and the background concentration of current to be measured to be used for access current to be measured, one section of tank, geneva bottle to be used for constant speed, cavity 90 degree bends, tank is connected with cavity, and geneva bottle is installed in the top at tank top.
2. solution-type current surveying device according to claim 1, is characterized in that: the xsect of cavity is square, and its length of side equals 2 ~ 4 times of pipe caliber water flow jet to be measured being entered cavity.
3. solution-type current surveying device according to claim 1, it is characterized in that: the end of cavity arranges a Yong Shui bank, to make to flow out the current depth of water of this cavity and lateral velocity distribution evenly, the longitudinal profile of Yong Shui bank is triangle, and it highly equals 1/6 of the cavity xsect length of side.
4. solution-type current surveying device according to claim 1, is characterized in that: tank is the prism that a top is opened wide, and its length is not less than 9 times of the cavity xsect length of side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356173.2U CN204043736U (en) | 2014-06-30 | 2014-06-30 | Solution-type current surveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356173.2U CN204043736U (en) | 2014-06-30 | 2014-06-30 | Solution-type current surveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204043736U true CN204043736U (en) | 2014-12-24 |
Family
ID=52244389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420356173.2U Expired - Fee Related CN204043736U (en) | 2014-06-30 | 2014-06-30 | Solution-type current surveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204043736U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048716A (en) * | 2014-06-30 | 2014-09-17 | 安徽理工大学 | Solution type flow measuring device |
| CN109084856A (en) * | 2018-07-19 | 2018-12-25 | 中国神华能源股份有限公司 | The flow determining method of open circulation water system |
-
2014
- 2014-06-30 CN CN201420356173.2U patent/CN204043736U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048716A (en) * | 2014-06-30 | 2014-09-17 | 安徽理工大学 | Solution type flow measuring device |
| CN104048716B (en) * | 2014-06-30 | 2017-03-29 | 安徽理工大学 | Solution-type current surveying device |
| CN109084856A (en) * | 2018-07-19 | 2018-12-25 | 中国神华能源股份有限公司 | The flow determining method of open circulation water system |
| CN109084856B (en) * | 2018-07-19 | 2021-06-04 | 中国神华能源股份有限公司 | Flow measuring method for open circulating water system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20141224 Termination date: 20170630 |