CN211576269U - Device for measuring flow rate of pipe with insufficient pipe - Google Patents
Device for measuring flow rate of pipe with insufficient pipe Download PDFInfo
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- CN211576269U CN211576269U CN202020437165.6U CN202020437165U CN211576269U CN 211576269 U CN211576269 U CN 211576269U CN 202020437165 U CN202020437165 U CN 202020437165U CN 211576269 U CN211576269 U CN 211576269U
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Abstract
The utility model relates to a device for measuring the flow of an unsatisfied pipe, which comprises a measuring pipe, wherein a liquid level sensor is arranged above the measuring pipe, a flow detection device is arranged on the measuring pipe, the flow detection device comprises a first flow speed acquisition electrode and a second flow speed acquisition electrode, the first flow speed acquisition electrode and the second flow speed acquisition electrode are both positioned below the liquid level sensor, the distance between the second flow speed acquisition electrode and the bottom end of an inner cavity of the measuring pipe is 30 mm-50 mm, and the ratio of the distance between the first flow speed acquisition electrode and the bottom end of the inner cavity of the measuring pipe to the diameter of the inner cavity of the measuring pipe is 1: 2; the technical problem that the conventional measuring instrument cannot normally work under the condition that the water level in the pipe is low is solved, and the technical requirement that the flow rate can still be measured under the condition that the water level in the pipe is low is met. The utility model discloses adjust, convenient to use, be wide market prospect.
Description
Technical Field
The utility model relates to a flow measurement field, concretely relates to pipe flow measuring device is not full.
Background
Metering is on the eye of industrial production. The flow measurement is one of the components of the measurement science and technology, and has close relation with national economy, national defense construction and scientific research. The work is well done, the flowmeter has important effects on ensuring the product quality, improving the production efficiency and promoting the development of scientific technology, and particularly has more obvious status and effect in national economy in the current times that the energy crisis and the industrial production automation degree are higher and higher.
Most of the flowmeters used in the current market are full-pipe flowmeters, when municipal drainage and agricultural irrigation pipelines automatically flow and replace channels with pipes, the pipelines are not full of pipes most of time, even the water level is only a few centimeters many times, and at the moment, the existing flowmeters in the current market cannot meet the field requirements.
Disclosure of Invention
To the not enough of prior art, the utility model provides a can still can normally work under the lower circumstances of intraductal water level not fill pipe flow measuring device for overcome defect among the prior art.
The utility model adopts the technical proposal that: the utility model provides a discontented pipe flow measuring device, is including surveying buret, survey buret top be provided with level sensor, survey the buret on be provided with flow detection device, flow detection device include that first flow rate adopts electrode and second flow rate to adopt the electrode, first flow rate adopts electrode and second flow rate to adopt the electrode and all is located level sensor's below, the distance of second flow rate collection electrode apart from this survey buret inner chamber bottom adopts 30mm to 50mm, the distance of first flow rate collection electrode apart from this survey buret inner chamber bottom and the ratio of this survey buret inner chamber diameter adopt 1: 2.
Preferably, the measuring tube comprises a tube body and an insulating layer, the insulating layer is positioned on the inner side of the tube body, the insulating layer is fixedly connected with the tube body, the number of the first flow rate collecting electrodes and the number of the second flow rate collecting electrodes are two, the two first flow rate collecting electrodes and the two second flow rate collecting electrodes are respectively and symmetrically arranged in a cavity on the inner side of the tube body, and the two first flow rate collecting electrodes and the two second flow rate collecting electrodes are fixedly sleeved on the insulating layer; the flow detection device further comprises an excitation coil and a converter, the excitation coil is installed below the pipe body, and the first flow rate collecting electrode, the second flow rate collecting electrode and the excitation coil are respectively electrically connected with the converter.
Preferably, this survey buret adopt circular tubular structure, the inner chamber diameter of this survey buret adopts 200mm to 1000mm, the both ends of this survey buret are equallyd divide and are provided with flange respectively.
Preferably, this survey buret top be provided with the electrical apparatus mounting box, level sensor installs in the electrical apparatus mounting box, survey buret on seted up the level measurement through-hole, the poroid structure that the level measurement through-hole adoption was seted up to the insulating layer medial surface direction along the body lateral surface, survey buret and electrical apparatus mounting box be linked together through the level measurement through-hole.
Preferably, the outside of the excitation coil is provided with an excitation coil mounting box, the excitation coil is connected with the outer wall of the tube body, the excitation coil is positioned below the second flow rate collecting electrode, and the insulation degree between the insulating layer and the tube body is not less than 200M Ω under the condition that the direct-current voltage is 1 KV.
Preferably, the level measurement through-hole be located level sensor's below, the converter is located level sensor's top, the inner wall fixed connection of converter and electrical apparatus mounting box is provided with gasket and go-between electrical apparatus mounting box and the level sensor, the gasket adopts the sheet structure of rubber material, the gasket is located between go-between and the level measurement through-hole, level sensor's measurement end is not less than 150mm apart from the distance of level measurement through-hole.
The utility model has the advantages that: firstly, the utility model discloses a set up first flow rate and adopt electric pole and second flow rate and adopt the electrode distance is gathered to the second flow rate the distance of surveying buret inner chamber bottom adopt 30mm to 50mm, first flow rate gather the electrode distance survey buret inner chamber bottom the distance and the ratio of measuring pipe inner chamber diameter adopt 1:2, can't be relatively accurate under the lower condition of water level determine the technical problem of accurate velocity of water.
Secondly, the utility model discloses the distance of second flow rate sensor apart from surveying buret bottom adopts 30mm to 50mm, has reduced the interference problem of carrying a small amount of silt to the second flow rate sensor of aquatic.
Finally, the utility model discloses set up the gasket between liquid level electrical apparatus mounting box and the level sensor and reduced level sensor wiring end and converter and rivers direct contact's probability, reduced the possibility of level sensor and converter short circuit, indirect improvement the durability of this product.
The utility model has the advantages of simple structure, convenient operation, design benefit has improved work efficiency greatly, has fine social and economic benefits, is the product of easily using widely.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the components of the present invention.
Detailed Description
As shown in fig. 1 and 2, the discontented pipe flow measuring device comprises a measuring pipe, wherein a liquid level sensor 1 is arranged above the measuring pipe, a flow detecting device is arranged on the measuring pipe, the flow detecting device comprises a first flow rate collecting electrode 2 and a second flow rate collecting electrode 3, the first flow rate collecting electrode 2 and the second flow rate collecting electrode 3 are both positioned below the liquid level sensor 1, the distance from the second flow rate collecting electrode 3 to the bottom end of an inner cavity of the measuring pipe is 30 mm-50 mm, and the distance from the first flow rate collecting electrode 2 to the bottom end of the inner cavity of the measuring pipe and the ratio of the diameter of the inner cavity of the measuring pipe are 1: 2. The measuring tube comprises a tube body 4 and an insulating layer 5, the insulating layer 5 is positioned on the inner side of the tube body 4, the insulating layer 5 is fixedly connected with the tube body 4, the number of the first flow rate collecting electrodes 2 and the number of the second flow rate collecting electrodes 3 are two, the two first flow rate collecting electrodes 2 and the two second flow rate collecting electrodes 3 are fixedly sleeved on the insulating layer 5, and measuring ends of the two first flow rate collecting electrodes 2 and measuring ends of the two second flow rate collecting electrodes 3 are positioned in a cavity formed by the inner walls of the insulating layer 5; the flow detection device further comprises an excitation coil 6 and a converter 7, wherein the excitation coil 6 is installed below the pipe body 4, and the first flow rate collecting electrode 2, the second flow rate collecting electrode 3 and the excitation coil 6 are respectively electrically connected with the converter 7. This survey buret adopt circular tubular structure, the inner chamber diameter of this survey buret adopts 200mm to 1000mm, the both ends of this survey buret are equallyd divide and are provided with flange 8 respectively.
This survey buret top be provided with electrical apparatus mounting box 9, level sensor 1 installs in electrical apparatus mounting box 9, survey buret on seted up level measurement through-hole 10, level measurement through-hole 10 adopts the poroid structure of seting up to 5 medial surfaces directions of insulating layer along the body 4 lateral surfaces, survey buret and electrical apparatus mounting box 9 be linked together through level measurement through-hole 10. The outside of the excitation coil 6 is provided with an excitation coil mounting box 11, the excitation coil 6 is connected with the outer wall of the tube body 4, the excitation coil 6 is positioned below the second flow rate collecting electrode 3, and the insulation degree between the insulating layer 5 and the tube body 4 is not less than 200M omega under the condition that the direct-current voltage is 1 KV.
The liquid level measuring through hole 10 is positioned below the liquid level sensor 1, the converter 7 is positioned above the liquid level sensor 1, the converter 7 is fixedly connected with the inner wall of the electrical appliance mounting box 9, a sealing sheet 12 and a connecting ring 13 are arranged between the electrical appliance mounting box 9 and the liquid level sensor 1, the sealing sheet 12 is positioned between the connecting ring 13 and the liquid level measuring through hole 10, and the distance between the measuring end of the liquid level sensor 1 and the liquid level measuring through hole 10 is not less than 150 mm; the converter 7 is a model L-magBP converter manufactured by Shenyang appliances Ltd. Level sensor 1 adopt ultrasonic wave level sensor, gasket 12 adopts the sheet structure of rubber material, the shape of gasket 12 corresponding with the shape of the 9 inner chambers of electrical apparatus mounting box, seted up connecting hole 14 on gasket 12, level sensor 1 suit is on connecting hole 14, all adopt the mode fixed connection that bonds between the outer wall of gasket 12 and the inner wall of electrical apparatus mounting box 9 and between the pore wall of level sensor 1 shell and connecting hole 14. The liquid level sensor 1 is fixedly connected with the electrical appliance mounting box 9 through a connecting ring 13, and the liquid level sensor 1 is vertically arranged above the liquid level measuring through hole 10.
The use method of the product is as follows: as shown in fig. 1 and 2, the height of the liquid level in the measuring tube is obtained according to the reading of the liquid level sensor 1, if the height of the liquid level in the measuring tube is between the first flow rate collecting electrode 2 and the top of the measuring tube inner cavity, the first flow rate collecting electrode 2 is started, then the converter 7 outputs alternating current to drive the excitation coil 6, the excitation coil 6 generates a magnetic field, the liquid which can conduct electricity in the measuring tube cuts magnetic lines and generates induced electromotive force, the first flow rate collecting electrode 2 collects the electromotive force and converts the electromotive force into a first electric signal through the converter 7 for output identification, and the instantaneous flow rate, the alternating current, the, Liquid level height, etc.
If the liquid level in the measuring tube is positioned between the first flow rate collecting electrode 2 and the second flow rate collecting electrode 3, the second flow rate collecting electrode 3 is started, then alternating current is output through a converter 7 to drive an excitation coil 6, the excitation coil 6 generates a magnetic field, the liquid which can conduct electricity in the measuring tube cuts magnetic lines and generates induced electromotive force, the second flow rate collecting electrode 3 collects the electromotive force, the electromotive force is converted into a second electric signal through the converter 7 for output identification, and when the liquid level in the measuring tube is positioned between the first flow rate collecting electrode 2 and the second flow rate collecting electrode 3, the data such as the instantaneous flow rate, the liquid level height and the like of the measuring tube are obtained according to the second electric signal and the reading of the liquid level sensor 1.
Through the embodiment, realized still can normally work under the lower circumstances of intraductal water level a not full pipe flow measuring device, what need explain in addition is that, in order to reduce the interior a small amount of silt of carrying of aquatic to disturb the survey, this product second velocity of flow acquisition electrode 3 is apart from survey buret bottom the distance adopt 30mm to 50mm for reduce the technical problem that the silt of carrying disturbed the survey.
In order to avoid measuring intraductal water level be in full pipe state measuring intraductal water contact level sensor 1 lead to the condition of level sensor 1 damage, this product has firstly adopted level sensor 1's measuring end apart from the distance of level measurement through-hole 10 not less than 150mm, secondly adopted to set up gasket 12 between electrical apparatus mounting box 9 and the level sensor 1, it is explicable to be described in addition, this product level sensor 1's wiring part all sets up in electrical apparatus mounting box 9 of gasket 12 top, gasket 12 adopts the rubber material, itself the rubber material is a better water-proof material, rubber material itself has elasticity, when rivers accident gets into in the cavity between level sensor 1 and the level measurement through-hole 10, because the air in this region is compressed and then lead to gasket 12 to be compressed, gasket 12 can exert reverse acting force to compressed air owing to being compressed and combine the reaction after the air is compressed to seal The force further forces the water flow away from the sealing plate 12 to protect the electrical components above the sealing plate 12.
The utility model discloses a satisfy in a not full pipe flow measuring device of flow measurement field needs, make the utility model discloses extensive market prospect has.
Claims (6)
1. The utility model provides a device for measuring the flow of an unfilled pipe, includes and surveys the buret, survey buret top be provided with level sensor (1), its characterized in that: the measuring tube is provided with a flow detection device, the flow detection device comprises a first flow speed collecting electrode (2) and a second flow speed collecting electrode (3), the first flow speed collecting electrode (2) and the second flow speed collecting electrode (3) are both located below the liquid level sensor (1), the distance between the second flow speed collecting electrode (3) and the bottom end of the inner cavity of the measuring tube is 30 mm-50 mm, and the ratio of the distance between the first flow speed collecting electrode (2) and the bottom end of the inner cavity of the measuring tube to the diameter of the inner cavity of the measuring tube is 1: 2.
2. The underfill flow measurement device of claim 1, wherein: the measuring tube comprises a tube body (4) and an insulating layer (5), the insulating layer (5) is located on the inner side of the tube body (4), the insulating layer (5) is fixedly connected with the tube body (4), the number of the first flow speed collecting electrodes (2) and the number of the second flow speed collecting electrodes (3) are two, the two first flow speed collecting electrodes (2) and the two second flow speed collecting electrodes (3) are symmetrically arranged in a cavity on the inner side of the tube body (4) respectively, and the two first flow speed collecting electrodes (2) and the two second flow speed collecting electrodes (3) are fixedly sleeved on the insulating layer (5); the flow detection device further comprises an excitation coil (6) and a converter (7), wherein the excitation coil (6) is installed below the pipe body (4), and the first flow rate collecting electrode (2), the second flow rate collecting electrode (3) and the excitation coil (6) are respectively electrically connected with the converter (7).
3. The underfill flow measurement device of claim 1, wherein: this survey buret adopt circular tubular structure, the inner chamber diameter of this survey buret adopts 200mm to 1000mm, the both ends of this survey buret are equallyd divide and are provided with flange (8) respectively.
4. The underfill flow measurement apparatus of claim 2, wherein: this survey buret top be provided with electrical apparatus mounting box (9), install in electrical apparatus mounting box (9) level sensor (1), survey buret on seted up level measurement through-hole (10), level measurement through-hole (10) adopt along body (4) outside to the poroid structure that insulating layer (5) medial surface orientation was seted up, survey buret and electrical apparatus mounting box (9) be linked together through level measurement through-hole (10).
5. The underfill flow measurement apparatus of claim 2, wherein: the outer side of the magnet exciting coil (6) is provided with a magnet exciting coil mounting box (11), the magnet exciting coil (6) is connected with the outer wall of the tube body (4), the magnet exciting coil (6) is located below the second flow rate collecting electrode (3), and the insulation degree between the insulating layer (5) and the tube body (4) is not less than 200M omega under the condition that the direct-current voltage is 1 KV.
6. The underfill flow measurement apparatus of claim 4, wherein: level measurement through-hole (10) be located the below of level sensor (1), converter (7) are located the top of level sensor (1), the inner wall fixed connection of converter (7) and electrical apparatus mounting box (9), be provided with gasket (12) and go-between (13) between electrical apparatus mounting box (9) and level sensor (1), gasket (12) adopt the sheet structure of rubber material, gasket (12) are located between go-between (13) and level measurement through-hole (10), the distance of the measurement end of level sensor (1) apart from level measurement through-hole (10) is not less than 150 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020437165.6U CN211576269U (en) | 2020-03-31 | 2020-03-31 | Device for measuring flow rate of pipe with insufficient pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020437165.6U CN211576269U (en) | 2020-03-31 | 2020-03-31 | Device for measuring flow rate of pipe with insufficient pipe |
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| CN211576269U true CN211576269U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020437165.6U Active CN211576269U (en) | 2020-03-31 | 2020-03-31 | Device for measuring flow rate of pipe with insufficient pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927438A (en) * | 2020-10-13 | 2020-11-13 | 中国石油集团川庆钻探工程有限公司 | Monitoring device and monitoring method for liquid level of anti-overflow pipe while drilling |
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2020
- 2020-03-31 CN CN202020437165.6U patent/CN211576269U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927438A (en) * | 2020-10-13 | 2020-11-13 | 中国石油集团川庆钻探工程有限公司 | Monitoring device and monitoring method for liquid level of anti-overflow pipe while drilling |
| CN111927438B (en) * | 2020-10-13 | 2021-01-22 | 中国石油集团川庆钻探工程有限公司 | Monitoring device and monitoring method for liquid level of anti-overflow pipe while drilling |
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