CN109029575B - Multi-parameter measuring device and method for counterweight type tipping bucket - Google Patents
Multi-parameter measuring device and method for counterweight type tipping bucket Download PDFInfo
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- CN109029575B CN109029575B CN201810842485.7A CN201810842485A CN109029575B CN 109029575 B CN109029575 B CN 109029575B CN 201810842485 A CN201810842485 A CN 201810842485A CN 109029575 B CN109029575 B CN 109029575B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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Abstract
The invention relates to a counterweight type tipping bucket multiparameter measuring device and a counterweight type tipping bucket multiparameter measuring method, and belongs to the technical field of detection and metering. The invention comprises a tipping bucket, a fixing bolt, a tipping bucket counterweight, a walking beam with scales, a tipping bucket limit, a tipping bucket support and a chassis; the chassis is provided with a tipping bucket limit and a tipping bucket support; the tipping bucket is limited and positioned below the tipping bucket, the tipping bucket and the walking beam with scales are connected into a whole, and the tipping bucket is connected with the tipping bucket support through a tipping bucket blade at the lower part of the tipping bucket; a liquid level sensor is arranged in the tipping bucket and is used for measuring the height of the liquid level in the tipping bucket; the walking beam with the scales is threaded with the tipping bucket counterweight, the tipping bucket counterweight is provided with a drill hole, the tipping bucket counterweight can slide on the walking beam with the scales, and the tipping bucket counterweight can be fixed on the walking beam by a fixing bolt. The hopper can be placed by limiting the tipping bucket. The invention can safely measure the density, concentration, material dry quantity and mass flow of fluid, and has high measurement precision, simple maintenance and installation and low cost.
Description
Technical Field
The invention relates to a counterweight type tipping bucket multiparameter measuring device and a counterweight type tipping bucket multiparameter measuring method, and belongs to the technical field of detection and metering.
Background
In industrial processes, on-line detection of underflow concentration is an important process. For example, the concentration of ore pulp is controlled in the ore dressing process, converter gas is recovered in steel smelting, and sewage is treated in environmental protection.
In the current stage, differential pressure densitometer, nuclear densitometer, vibration densitometer and the like are often used for online detection of the concentration of the underflow. Differential pressure densitometers are generally suitable for stationary fluids, but the use environment of the site often causes fluctuation of the liquid level, and certain influence is caused on the accuracy of liquid level measurement, so that measurement errors are caused. The nuclear densimeter adopts an isotope radioactive source, so that the risk of radiation hazard is caused, and the production and maintenance costs are high; the vibration type density measurement is carried out by taking the modulation effect of the mass flow of the fluid on the vibration of the vibration tube as the principle, and the influence of external vibration interference on the measurement result is difficult to avoid in a complex industrial environment.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a device and a method for measuring the density, concentration, material dry quantity or mass flow of fluid, which are safe, high-precision and convenient to maintain and install.
The technical scheme of the invention is as follows: a counter weight type tipping bucket multi-parameter measuring device comprises a tipping bucket 1, a fixing bolt 2, a tipping bucket counter weight 3, a walking beam 4 with scales, a tipping bucket limit 9, a tipping bucket support 11 and a chassis 12;
the chassis 12 is provided with a tipping bucket limit 9 and a tipping bucket support 11; the tipping bucket limit 9 is positioned below the tipping bucket 1, the tipping bucket 1 and the walking beam 4 with scales are connected into a whole, and the tipping bucket 1 is connected with the tipping bucket support 11 through the tipping bucket blade 7 at the lower part of the tipping bucket limit 9; a liquid level sensor 13 is arranged in the tipping bucket 1 and is used for measuring the height of the liquid level in the tipping bucket 1; the tipping bucket counterweight 3 is put on the walking beam 4 with scales, a drilling hole 10 is arranged on the tipping bucket counterweight 3, the tipping bucket counterweight 3 can slide on the walking beam 4 with scales, and the tipping bucket counterweight 3 can be fixed on the walking beam 4 by the fixing bolts 2. The skip bucket limit 9 can be used for placing the hopper 1.
The leveling bolts 6 and the horizontal bubbles 8 are arranged on the chassis 12, and the leveling bolts 6 are used for adjusting the chassis 12 to center the horizontal bubbles 8 during measurement, so that the chassis 12 is horizontal, and the use error is reduced.
The tipping bucket support 11 is provided with a clamping groove, and the tipping bucket blade 7 at the lower part of the tipping bucket 1 is clamped in the clamping groove of the tipping bucket support 11.
The drill hole 10 provided in the dump weight 3 is used for correcting the mass of the dump weight 3, and the same material as that used for manufacturing the dump weight 3 is plugged into the drill hole 10 during correction.
The chassis 12 below the walking beam 4 with the scales is provided with a counterweight limit 5, and the tipping bucket counterweight 3 penetrating through the walking beam 4 with the scales slides in the counterweight limit 5 while the lower end of the tipping bucket counterweight 3 slides on the walking beam 4 with the scales.
The parameter measured by the counterweight type tipping bucket multi-parameter measuring method comprises the density, concentration, material dry quantity or mass flow of fluid;
A. the density of the fluid is measured by the following formula:
where ρ is the density of the fluid in the skip, m 2 The weight of the fluid in the tipping bucket 1 is given, and V is the volume of the fluid; since there is m when the hopper 1 and the dump weight 3 are balanced 2 gl 2 ＝m 1 gl 1 Then->
Wherein m is 1 Is the weight of the tipping bucket counterweight 3, l 1 For the length l of the graduated beam 4 between the skip counterweight 3 and the skip 1 2 For the horizontal distance of the centre of gravity of the dump bucket 1 from the dump bed 11, where m is 2 gl 2 Greater than m 1 gl 1 When in use, the tipping bucket 1 can be turned over;
the height of the liquid level in the tipping bucket 1 is H, the included angle between the horizontal right-angle side and the hypotenuse of the tipping bucket is theta, and a right-angle triangle formed by the horizontal right-angle a, the vertical right-angle side b and the hypotenuse d is named as a right-angle triangle I; the right triangle formed by the horizontal right angle side c, the vertical right angle side H and the hypotenuse e is named as a right triangle II, the property of the similar triangle can be known, the included angle between the right angle side c and the hypotenuse e in the right triangle II is also θ, H is the width of the funnel 1, and the triangle function relation can be knownI.e. < ->Therefore, the area of the right triangle II is->The volume corresponding to the right triangle II is +.>
Therefore, if the volume V of the object remains unchanged, the density ρ of the fluid can be obtained by determining the weight of the fluid.
B. The measurement formula of the concentration of the fluid is as follows:
where c is the concentration of the fluid under test, ρ 0 Is the natural capacity of the solid matter contained in the fluid, namely the density of the dry matter, ρ is the concentration of the measured fluid, ρ c The reference density is the density of water;
C. because of the concentration c of the fluid and the materialDry weight m 0 The relation between them isThe measurement formula of the material dry quantity of the fluid in the tipping bucket is +.>
Where c is the concentration of the fluid being measured, m 0 For the dry weight of the materials, m c Is the mass of water;
D. mass flow rate q of fluid m Mass m with measured fluid 2 The relation between them isThe mass flow of the fluid->
Wherein q m For the mass flow of the fluid to be measured, m 2 T is the time for the object to flow through the effective cross section, which is the weight of the fluid being measured.
The working process of the invention is as follows:
the measured parameters of the invention when in use include density, concentration, dry mass of material or mass flow of fluid; the formula of measurement is specifically shown as above; when measuring the density of the fluid, the fluid is put into the funnel 1, the funnel 1 with the fluid and the tipping balance weight 3 are in balance state by sliding the tipping balance weight 3 on the walking beam 4 with scales, and at the moment, the reading of relevant parameters is carried out, wherein the walking beam 4 with scales reads l 1 ，l 2 It can also be measured and calculated by means of a ruler, and the weight of the dump weight 3 is determined, and the weight of the fluid in the dump body 1 can be calculated according to the formula given above, wherein m is calculated according to the formula given above 2 Should be the weight of the funnel plus the fluid therein, the calculated m can also be used for more accuracy 2 Subtracting the weight of the funnel from the value of (2) as the weight of the fluid being measured;
the device disclosed by the invention can measure other parameters needed in the disclosed formula by using a tool in common general knowledge according to actual conditions, so that the disclosed formula is utilized to calculate the parameters.
The beneficial effects of the invention are as follows: the invention can safely measure the density, concentration, material dry quantity and mass flow of fluid, and has high measurement precision, simple maintenance and installation and low cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the force balance relationship of the dump body and the dump weight of the present invention;
FIG. 3 is a schematic illustration of the dump weight construction of the present invention;
FIG. 4 is a graphical representation of the geometry of the dump box of the present invention;
fig. 5 is a diagram showing a geometric relationship of a side surface of a dump box according to the present invention.
The reference numerals in fig. 1-5: 1-tipping bucket, 2-fixing bolts, 3-tipping bucket counterweight, 4-walking beam with scales, 5-counterweight limit, 6-leveling bolts, 7-tipping bucket blade, 8-horizontal bubble, 9-tipping bucket limit, 10-drilling, 11-tipping bucket support, 12-chassis and 13-liquid level sensor.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
Example 1: as shown in fig. 1-5, a counterweight type tipping bucket multi-parameter measuring device comprises a tipping bucket 1, a fixed bolt 2, a tipping bucket counterweight 3, a walking beam 4 with scales, a tipping bucket limit 9, a tipping bucket support 11 and a chassis 12;
the chassis 12 is provided with a tipping bucket limit 9 and a tipping bucket support 11; the tipping bucket limit 9 is positioned below the tipping bucket 1, the tipping bucket 1 and the walking beam 4 with scales are connected into a whole, and the tipping bucket 1 is connected with the tipping bucket support 11 through the tipping bucket blade 7 at the lower part of the tipping bucket limit 9; a liquid level sensor 13 is arranged in the tipping bucket 1 and is used for measuring the height of the liquid level in the tipping bucket 1; the tipping bucket counterweight 3 is put on the walking beam 4 with scales, a drilling hole 10 is arranged on the tipping bucket counterweight 3, the tipping bucket counterweight 3 can slide on the walking beam 4 with scales, and the tipping bucket counterweight 3 can be fixed on the walking beam 4 by the fixing bolts 2. The skip bucket limit 9 can be used for placing the hopper 1.
Further, the leveling bolts 6 and the horizontal bubbles 8 are arranged on the chassis 12, and the leveling bolts 6 are used for adjusting the chassis 12 to center the horizontal bubbles 8 during measurement, so that the chassis 12 is horizontal, and the use error is reduced.
Further, a clamping groove is formed in the tipping bucket support 11, and the tipping bucket blade 7 at the lower part of the tipping bucket 1 is clamped in the clamping groove of the tipping bucket support 11. The lower part of the tipping bucket is made into a blade type, so that the resistance during overturning is reduced, and the sensitivity of the device is improved.
Further, the drill hole 10 provided in the dump weight 3 is used for correcting the mass of the dump weight 3, and the same material as that of the dump weight 3 is plugged into the drill hole 10 during correction.
Further, the chassis 12 below the walking beam 4 with the scale is provided with a counterweight limit 5, and the dump bucket counterweight 3 penetrating through the walking beam 4 with the scale slides in the counterweight limit 5 while the lower end of the dump bucket counterweight 3 slides on the walking beam 4 with the scale.
The parameter measured by the counterweight type tipping bucket multi-parameter measuring method comprises the density, concentration, material dry quantity or mass flow of fluid;
A. the density of the fluid is measured by the following formula:
where ρ is the density of the fluid in the skip, m 2 The weight of the fluid in the tipping bucket 1 is given, and V is the volume of the fluid; since there is m when the hopper 1 and the dump weight 3 are balanced 2 gl 2 ＝m 1 g 1 Then->
Wherein m is 1 Is the weight of the tipping bucket counterweight 3, l 1 For the length l of the graduated beam 4 between the skip counterweight 3 and the skip 1 2 For water from the centre of gravity of the skip 1 to the skip support 11Flat distance, where when m 2 gl 2 Greater than m 1 gl 1 When in use, the tipping bucket 1 can be turned over;
the height of the liquid level in the tipping bucket 1 is H, the included angle between the horizontal right-angle side and the hypotenuse of the tipping bucket is theta, and a right-angle triangle formed by the horizontal right-angle a, the vertical right-angle side b and the hypotenuse d is named as a right-angle triangle I; the right triangle formed by the horizontal right angle side c, the vertical right angle side H and the hypotenuse e is named as a right triangle II, the property of the similar triangle can be known, the included angle between the right angle side c and the hypotenuse e in the right triangle II is also θ, H is the width of the funnel 1, and the triangle function relation can be knownI.e. < ->Therefore, the area of the right triangle II is->The volume corresponding to the right triangle II is
Therefore, if the volume V of the object remains unchanged, the density ρ of the fluid can be obtained by determining the weight of the fluid.
B. The measurement formula of the concentration of the fluid is as follows:
where c is the concentration of the fluid under test, ρ 0 Is the natural capacity of the solid matter contained in the fluid, namely the density of the dry matter, ρ is the concentration of the measured fluid, ρ c The reference density is the density of water;
C. because of the concentration c of the fluid and the dry mass m of the material 0 The relation between them isThe measurement formula of the material dry quantity of the fluid in the tipping bucket is +.>
Where c is the concentration of the fluid being measured, m 0 For the dry weight of the materials, m c Is the mass of water;
D. mass flow rate q of fluid m Mass m with measured fluid 2 The relation between them isThe mass flow of the fluid->
Wherein q m For the mass flow of the fluid to be measured, m 2 T is the time for the object to flow through the effective cross section, which is the weight of the fluid being measured.
The specific embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (5)
1. A counterweight type tipping bucket multiparameter measurement method is characterized in that: the parameters measured by the counterweight tipping bucket multi-parameter measurement method comprise the density, concentration, material dry weight or mass flow of the fluid;
A. the density of the fluid is measured by the following formula:
where ρ is the density of the fluid in the skip, m 2 Is the weight of the fluid in the tipping bucket (1), v is the volume of the fluid; because there is m when the skip (1) and the skip counterweight (3) are balanced 2 gl 2 ＝m 1 gl 1 Then->
Wherein m is 1 Is the weight of the tipping bucket counterweight (3), l 1 For the length l of the graduated beam (4) between the skip counterweight (3) and the skip (1) 2 For the horizontal distance of the centre of gravity of the skip (1) to the skip support (11), wherein when m 2 gl 2 Greater than m 1 gl 1 When in use, the tipping bucket (1) can be overturned;
the height of the liquid level in the tipping bucket (1) is H, the included angle between the horizontal right-angle side and the hypotenuse of the tipping bucket is theta, and a right-angle triangle formed by the horizontal right-angle side a, the vertical right-angle side b and the hypotenuse d is named as a right-angle triangle I; the right triangle formed by the horizontal right angle side C, the vertical right angle side H and the hypotenuse e is named as right triangle II, the property of the similar triangle can be known, the included angle between the right angle side C and the hypotenuse e in the right triangle II is also θ, H is the width of the tipping bucket (1), and the triangle function relation can be knownI.e. < ->Therefore, the area of right triangle II is->The volume corresponding to the right triangle II is +.>
Therefore, if the volume V of the object is kept unchanged, the density rho of the fluid can be obtained by calculating the weight of the fluid;
B. the measurement formula of the concentration of the fluid is as follows:
where c is the concentration of the fluid under test, ρ 0 Is the natural capacity of the solid matter contained in the fluid, namely the density of the dry matter, ρ is the concentration of the measured fluid, ρ c The reference density is the density of water;
C. because of the concentration c of the fluid and the dry mass m of the material 0 The relation between them isThe measurement formula of the material dry quantity of the fluid in the tipping bucket is +.>
Where c is the concentration of the fluid being measured, m 0 For the dry weight of the materials, m c Is the mass of water;
D. mass flow rate q of fluid m Mass m with measured fluid 2 The relation between them isThe mass flow of the fluid->
Wherein q m For the mass flow of the fluid to be measured, m 2 T is the time for the object to flow through the effective cross section, which is the weight of the fluid being measured.
The device of the counterweight type tipping bucket multiparameter measuring method comprises a tipping bucket (1), a fixing bolt (2), a tipping bucket counterweight (3), a walking beam (4) with scales, a tipping bucket limit (9), a tipping bucket support (11) and a chassis (12);
a tipping bucket limit (9) and a tipping bucket support (11) are arranged on the chassis (12); the tipping bucket limit (9) is positioned below the tipping bucket (1), the tipping bucket (1) and the walking beam (4) with scales are connected into a whole, and the tipping bucket (1) is connected with the tipping bucket support (11) through a tipping bucket blade (7) at the lower part of the tipping bucket; a liquid level sensor (13) is arranged in the tipping bucket (1) and is used for measuring the height of the liquid level in the tipping bucket (1); the walking beam (4) with the scales is worn with the tipping bucket counterweight (3), the tipping bucket counterweight (3) is provided with a drilling hole (10), the tipping bucket counterweight (3) can slide on the walking beam (4) with the scales, and the tipping bucket counterweight (3) can be fixed on the walking beam (4) by the fixing bolts (2).
2. A method of multi-parameter measurement of a counterweight skip according to claim 1, characterized by: the leveling bolts (6) and the horizontal bubbles (8) are arranged on the chassis (12), and the leveling bolts (6) are used for adjusting the chassis (12) to center the horizontal bubbles (8) during measurement, so that the chassis (12) is horizontal.
3. A method of multi-parameter measurement of a counterweight skip according to claim 1, characterized by: the tipping bucket support (11) is provided with a clamping groove, and the tipping bucket blade (7) at the lower part of the tipping bucket (1) is clamped in the clamping groove of the tipping bucket support (11).
4. A method of multi-parameter measurement of a counterweight skip according to claim 1, characterized by: the drilling holes (10) arranged on the tipping bucket counter weight (3) are used for correcting the mass of the tipping bucket counter weight (3), and the same materials as those used for manufacturing the tipping bucket counter weight (3) are plugged into the drilling holes (10) during correction.
5. A method of multi-parameter measurement of a counterweight skip according to claim 1, characterized by: the chassis (12) below the walking beam (4) with the scales is provided with a counterweight limit (5), and the tipping bucket counterweight (3) penetrating through the walking beam (4) with the scales slides in the counterweight limit (5) in the sliding process of the walking beam (4) with the scales.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810842485.7A CN109029575B (en) | 2018-07-27 | 2018-07-27 | Multi-parameter measuring device and method for counterweight type tipping bucket |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810842485.7A CN109029575B (en) | 2018-07-27 | 2018-07-27 | Multi-parameter measuring device and method for counterweight type tipping bucket |
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| CN109029575A CN109029575A (en) | 2018-12-18 |
| CN109029575B true CN109029575B (en) | 2023-07-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109490990A (en) * | 2019-01-04 | 2019-03-19 | 杭州佐格通信设备有限公司 | Tipping bucket and rain gage bucket |
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| FR796336A (en) * | 1935-01-03 | 1936-04-04 | F E R E Mecanique Generale | Device for simultaneously determining the volume, weight and density of granular or other materials |
| CN101408495A (en) * | 2008-10-31 | 2009-04-15 | 李大庆 | Non-linear scale gravimeter |
| CN203271718U (en) * | 2013-04-28 | 2013-11-06 | 西安思坦仪器股份有限公司 | Tipping bucket flowmeter |
| CN104238535A (en) * | 2013-06-05 | 2014-12-24 | 俞如 | Intelligent fluid management system |
| CN104237974A (en) * | 2014-09-11 | 2014-12-24 | 河海大学 | Siphon throttling tipping bucket rain gauge |
| CN204903789U (en) * | 2015-08-11 | 2015-12-23 | 珠海多利智电子有限公司 | Weighing type hyetometer of tipping bucket drainage mode |
| CN208721133U (en) * | 2018-07-27 | 2019-04-09 | 昆明理工大学 | A kind of counter weight type tipping bucket multiparameter measuring device |
-
2018
- 2018-07-27 CN CN201810842485.7A patent/CN109029575B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR796336A (en) * | 1935-01-03 | 1936-04-04 | F E R E Mecanique Generale | Device for simultaneously determining the volume, weight and density of granular or other materials |
| CN101408495A (en) * | 2008-10-31 | 2009-04-15 | 李大庆 | Non-linear scale gravimeter |
| CN203271718U (en) * | 2013-04-28 | 2013-11-06 | 西安思坦仪器股份有限公司 | Tipping bucket flowmeter |
| CN104238535A (en) * | 2013-06-05 | 2014-12-24 | 俞如 | Intelligent fluid management system |
| CN104237974A (en) * | 2014-09-11 | 2014-12-24 | 河海大学 | Siphon throttling tipping bucket rain gauge |
| CN204903789U (en) * | 2015-08-11 | 2015-12-23 | 珠海多利智电子有限公司 | Weighing type hyetometer of tipping bucket drainage mode |
| CN208721133U (en) * | 2018-07-27 | 2019-04-09 | 昆明理工大学 | A kind of counter weight type tipping bucket multiparameter measuring device |
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