CN107202614A - Static pressure type cylinder flowmeter - Google Patents
Static pressure type cylinder flowmeter Download PDFInfo
- Publication number
- CN107202614A CN107202614A CN201710616257.3A CN201710616257A CN107202614A CN 107202614 A CN107202614 A CN 107202614A CN 201710616257 A CN201710616257 A CN 201710616257A CN 107202614 A CN107202614 A CN 107202614A
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- cylinder
- feeding
- barretter
- static pressure
- pipe
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- 230000003068 static effect Effects 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000010866 blackwater Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 abstract description 30
- 238000005259 measurement Methods 0.000 abstract description 21
- 238000002360 preparation method Methods 0.000 abstract description 7
- 239000000725 suspension Substances 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 5
- 239000003250 coal slurry Substances 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 15
- 239000012530 fluid Substances 0.000 description 11
- 238000005188 flotation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000002706 hydrostatic effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
Abstract
A kind of static pressure type cylinder flowmeter, is divided into feeding cylinder and observation cylinder.Feeding pipe is inserted with feeding cylinder, barretter is connected with the outlet of feeding pipe.Feeding cylinder tapering is provided with baffle plate, and feeding cylinder bottom is provided with mozzle.It can also be that throttle pipe is connected with feeding cylinder by throttle orifice to observe cylinder, and both form linker so that liquid level is steady in observation cylinder, and fluctuating range is very small, improves measurement accuracy.Multiple small sircle holes are uniformly distributed on the tube wall of barretter, the flow velocity of barretter outlet is substantially reduced so that the turbulent extent reduction of feeding cylinder, it is to avoid liquid level is excessively fluctuated.Baffle plate is provided with a certain distance from barretter outlet, it is ensured that cylinder flowmeter goes out stream by static pressure mode.For different flow measurement scopes, the mozzle of different length can select.The present invention is applied to the suspension flow measurement including Coal Slurry in Preparation Plant, can also be applied to clear water flow measure.
Description
Technical field
The present invention relates to a kind of flowmeter for measuring black water, specifically a kind of static pressure type cylinder flowmeter, this stream
The flow of the measurable suspension including black water of gauge, can also measure the flow of clear water.
Background technology
Coal slime measuring water flow is the essential link of wet coal preparation factory, particularly floatation feed and thickener pan feeding coal
The measurement of muddy water, its necessity is：The size of clarification concentrator feeding is directly connected to flocculant (or flocculating agent)
Addition, suitable addition not only can guarantee that the clarification of black water depth and closed water circuit, moreover it is possible to saving water resource, prevent
Industrial wastewater pollution environment.The size of floatation feed flow is the debugging operations important factor in order of flotation device, is also determined floating
The addition of agent is selected, the certain flotation dosage of certain feeding correspondence, the excessive or too small of flotation dosage can cause flotation
Quality of cleaned coal is unqualified or yield reduction, suitable flotation agent addition just can guarantee that floatation clean coal yield and quality and
Coal resources make full use of, so as to improve the whole economic efficiency of coal preparation plant.Therefore the measurement of coal slime water-carrying capacity is to coal preparation plant
Productive technology management it is extremely important.
The flow that can be used to measure black water common at present is calculated as electromagnetic flowmeter and ultrasonic flowmeter.
1) electromagnetic flowmeter is a kind of instrument for the measurement fluid flow being made using Faraday's electromagnetic induction law, and it is former
Reason is：Liquid produces the induced electricity proportional to flow in the non magnetic measurement Bottomhole pressure perpendicular to magnetic field, cutting magnetic line
Kinetic potential, is sent to converter and is converted into current signal, and flow value is being output as by display screen.The shortcoming of electromagnetic flowmeter：
A. the current signal that the induced potential of flowmeter is converted into is faint, only microampere rank (0-10 μ A), is highly prone to
The induced field interference of motor, cable formation used in production site, causes measured deviation；
B. zero point is easily drifted about, and is difficult to correct, is adjusted；
C. incrustation scale or transducer wall's abrasion change internal diameter size in the measurement pipe of flowmeter, cause measured deviation.
Ultrasonic flowmeter is that the characteristic of object can be penetrated using ultrasonic wave, sets ultrasonic wave to send outside fluid line
Device, measurement pipe inner fluid speed, so as to measure flow.The place of its work must not have noise and vibration, and coal preparation plant produces
Period noise is strong, vibration is big, so inapplicable.
The content of the invention
The present invention be directed to many defects present in prior art, there is provided a kind of measurement accuracy is high, reaction signal is good, knot
Structure is simply easy to manufacture, easily regulation use, easy care and the good static pressure type cylinder flowmeter of cost performance, and the flowmeter is applied to
Suspension flow measurement including the black water of coal preparation plant, can also be applied to clear water flow measure.
Realize that above-mentioned purpose uses following technical scheme：
A kind of static pressure type cylinder flowmeter, is divided into feeding cylinder and observation cylinder two parts, it is characterised in that
A. throttle orifice is carried on described observation cylinder, observation cylinder is connected by throttle orifice with feeding cylinder, observation cylinder and pan feeding
Both formation linkers of cylinder；
B. feeding pipe is inserted with described feeding cylinder, is connected with the base opening of feeding pipe on barretter, the tube wall of barretter
It is evenly distributed with multiple small sircle holes；Black water enters feeding cylinder through feeding pipe, barretter, and is flowed out through mozzle；
C. the feeding cylinder bottom of the flowmeter is provided with mozzle, and the length of mozzle is 0~4 with the ratio of its internal diameter；
D. the feeding cylinder tapering is provided with baffle plate.
Preferably, described feeding cylinder is cylinder-pyramid type structure.
Preferably, at feeding cylinder tapering is away from barretter outlet 200mm, being provided with a diameter of 200mm baffle plate.
Preferably, the internal diameter of the feeding pipe, barretter and mozzle is 150mm~250mm, barretter outlet is away from entering
Along 1000mm on barrel.
Preferably, a diameter of 15mm of the small sircle hole being distributed on the tube wall of barretter, the gross area of multiple small sircle holes is steady
1.04-1.74 times of the flow tube outlet gross area.
Preferably, described observation cylinder is provided with throttle orifice or throttle pipe.
Preferably, described observation cylinder is provided with throttle pipe.
Using above-mentioned technical proposal, compared with prior art, both observation cylinder of the invention and feeding cylinder form linker,
So that observation cylinder liquid level stabilizing, fluctuating range is very small, it is ensured that steady, the raising measurement accuracy of liquid level.Therefore enter in limited
Under the conditions of barrel volume, bigger feeding can be accommodated.The present invention is in feeding pipe exit, there is provided uniform on one section of tube wall
The barretter of multiple small sircle holes is distributed, when black water (suspension) is by barretter, some is first through the aperture on tube wall
Outflow, substantially reduces barretter exit velocity so that turbulent extent is reduced in feeding cylinder, it is to avoid liquid level is excessively fluctuated.This hair
Bright to set baffle plate in feeding cylinder tapering, the current to being flowed out from barretter with residual velocity, the side of being changed are met in the baffle plate front
To eliminating its influence makes current be flowed out by liquid level hydrostatic pressure from mozzle.Measurement accuracy of the present invention is high, reaction signal is good, knot
Structure is simply easy to manufacture, easily regulation use, easy care and cost performance is good, it is adaptable to the suspension including Coal Slurry in Preparation Plant
Flow quantity is determined, and can also be applied to clear water flow measure.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is feeding cylinder structural representation of the present invention.
Fig. 3 is feeding cylinder of the present invention and observation cylinder attachment structure schematic diagram.
Fig. 4 is cylinder vertical water outflowing jet fluid contraction phenomenon schematic diagram of the present invention.
Fig. 5 is the ratio m and discharge coefficient μ of mozzle of the present invention graph of a relation.
Fig. 6, Fig. 7 are the effect schematic diagrames of baffle plate of the present invention.
Fig. 8, Fig. 9 are that (wherein Fig. 8 is test platform installation relation front view, Fig. 9 to test platform installation graph of the present invention
It is test platform installation relation side view)
Figure 10 is implementation principle schematic diagram of the present invention.
Figure 11 is static pressure cylinder flowmeter vertical water outflowing jet schematic diagram of the present invention.
Marked in figure, feeding pipe 1, feeding cylinder 2, baffle plate 3, mozzle 4, observation cylinder 5, throttle orifice 6, barretter 7, small sircle hole
8th, liquid level gauge 9, enter material pond 10, floatation feed pump 11, electromagnetic flowmeter 12, water tank 13, delivery pump and motor 14.
Embodiment
Referring to Fig. 1, this static pressure type cylinder flowmeter disclosed in this invention is designed according to hydraulic principle, is divided into pan feeding
Cylinder 2 and observation two parts of cylinder 5, are made up of feeding pipe 1, feeding cylinder 2, baffle plate 3, mozzle 4, observation cylinder 5, barretter 7 etc..
Feeding cylinder 2 is cylinder-pyramid type structure, and the structure of feeding cylinder, which is shown in Fig. 2, feeding cylinder 2, is inserted with feeding pipe 1, pan feeding
Multiple small sircle holes 8 are evenly distributed with the base opening connection barretter 7 of pipe 1, the tube wall of barretter 7；The cone bottom connection of feeding cylinder is led
Flow tube 4.
Observe barrel structure embodiment
The black water (suspension) of the even upper kilostere of hundreds of cubic meters is produced through feeding pipe 1 vertically into feeding cylinder 2
Violent turbulent flow, causes and is fluctuated above and below liquid level, necessarily affect measurement accuracy.
In order to ensure measurement accuracy, the present invention is additionally arranged observation cylinder 5, sees Fig. 3, and observation cylinder 5 is provided with throttle orifice 6, can also
It is throttle pipe.Observation cylinder 5 is connected by throttle orifice 6 or throttle pipe with feeding cylinder 2, and both observation cylinder 5 and feeding cylinder 2 are formed and connected
Device, this set causes the observation liquid level stabilizing of cylinder 5, and fluctuating range is very small, improves measurement accuracy.Its realization principle is shown in Fig. 3：
Pan feeding causes its liquid level to be fluctuated by above and below ± h ＇ height because of turbulent perturbation, the pressure differential formed between two, at this
In the presence of pressure differential, there is the fluid turnover observation cylinder 5 that one volume is Q through throttle orifice 6 or throttle pipe in the unit interval, if section
Discharge orifice or throttle pipe sectional area are S1, flow velocity is v ＇, then Q=S1V ＇, in the case where not considering the ideal conditions of resistance,(in formula, g is acceleration of gravity), then：
It is S to observe cylinder sectional area2, its liquid level is by ± h 〞 height fluctuations, then the fluid of turnover Q volumes is showed in observation cylinder
Form is Q=S2The speed fluctuated above and below v 〞, observation cylinder fluidS is determined in the present embodiment2=100S1, then：
I.e.：
Then：
This means that the amplitude fluctuated in observation cylinder above and below liquid level is only a ten thousandth of feeding cylinder, if it is considered that
Resistance, this amplitude is also smaller.
The setting of throttle orifice 6 or throttle pipe, it is ensured that liquid level it is steady, improve observation accuracy, therefore limited
Under the conditions of feeding cylinder volume, bigger feeding can be accommodated.
Barretter constructive embodiment
See Fig. 2, the present invention is connected to one section of barretter 7, barretter 7 is affixed with feeding pipe 1 to be in the exit of feeding pipe 1
One, the internal diameter of feeding pipe 1 and barretter 7 be evenly distributed with 150mm~250mm, the tube wall of barretter 7 it is multiple a diameter of
15mm small sircle hole 8, the gross area of small sircle hole 8 is 1.04-1.74 times of barretter discharge area.In the present embodiment barretter 7
Footpath is 150mm, and a diameter of 15mm small sircle hole 8 is drilled with current stabilization tube wall, 174 altogether, the gross area of 174 small sircle holes
For 0.018m2, it is 1.74 times of barretter sectional area.
When black water (suspension) is by barretter 7, some is first to be flowed out through the small sircle hole 8 on tube wall, this
Sample just substantially reduces barretter exit velocity so that the turbulent extent reduction of feeding cylinder, it is to avoid liquid level is excessively fluctuated.
Mozzle length optimization embodiment
See Fig. 4, according to hydraulic principle, during cylinder vertical water outflowing jet, the mouth of pipe has fluid contraction phenomenon, due to outlet section
Product diminishes, flow just corresponding reduction.Therefore what is calculated is theoretical delivery Q values, Electromagnetic Flow measurement in the present embodiment
Must be measured discharge Q1Value.
Discharge coefficientThen measured discharge calculating formula is：
Discharge coefficient is bigger, and actual flow is bigger.Discharge coefficient size is related to the length of mozzle 4, and the present embodiment is led
The internal diameter of flow tube 4 is 200mm.
As shown in Figure 5：Curve as obtained by experiment is made up of abrupt segment and gentle section two parts, mozzle and its internal diameter
Ratio be m, be the flex point of two sections of curve as m=2, the present embodiment takes the ratio m=2 of the length of mozzle 4 and its internal diameter.
Liquid level H values (see Fig. 4) also found by present invention experiment, actually feeding cylinder liquid level h1With water conservancy diversion length of tube h2Two parts are constituted, i.e.,
H=h1+h2。
When using static pressure type cylinder flowmeter at the scene, different h can be selected according to actual feeding2The mozzle 4 of value.
For example, the present embodiment is 250m using cylinder flow3When, the internal diameter of mozzle 4 is 150mm, and length takes 300mm.Different length is led
The measurement range that flow tube 4 is adapted to is shown in Table 1.
The water conservancy diversion length of tube h of table 12With its suitable measurement range
| Water conservancy diversion length of tube h2,mm | Ratio m | Discharge coefficient | Liquid level gauging height, | Measurement range, m3/h |
| 0 | 0 | 0.640 | 0.85-1.60 | 166.2-228.0 |
| 150 | 1 | 0.658 | 1.00-1.75 | 185.3-245.2 |
| 300 | 2 | 0.771 | 1.15-1.90 | 232.9-299.4 |
| 450 | 3 | 0.782 | 1.30-2.05 | 251.1-315.3 |
| 600 | 4 | 0.799 | 1.45-2.20 | 271.0-333.8 |
Baffle plate embodiment
See Fig. 6, pan feeding is to enter cylinder by barretter 7 with certain residual velocity.For pipe gravity flow pipeline, fluid by
To the influence of acceleration of gravity；For pressure pipeline, fluid is influenceed by delivery pump residual compression.For holding cylinder body fluid face
Stabilization, feeding pipe 1 and barretter 7 must be inserted into the certain depth of liquid level, the distance of the import of mozzle 4 away from feeding cylinder 2 compared with
Closely, fluid is substantially the residual velocity v of feeding pipe 1 by the speed of mozzle 41(this speed is slightly had reduction by resistance), and
The static pressure velocity v produced by cylinder liquid level is not relied on, in v1>In the case of v, it is impossible to realize the principle that liquid level static pressure is determined, see
Fig. 6.The present invention sets one piece of a diameter of 200mm circle baffle plate 3 in the tapering of feeding cylinder 2, and the baffle plate is placed on to be exported away from barretter 7
At 1200mm.Its act on be front meet to from feeding pipe with residual velocity v1The current of outflow, are changed direction, eliminate its shadow
Ring, current is flowed out by liquid level hydrostatic pressure from mozzle with v speed, see Fig. 7.
See Fig. 8, Fig. 9, the present embodiment is specially provided with test battery platform as experimental rig, and flowmeter is divided into feeding cylinder
2 inject after the certain liquid level of water tank with observation two parts of cylinder 5, clear water, start delivery pump 14, clear water is through being provided with electromagnetic flowmeter 12
Pipeline enter feeding cylinder 2, and the reflow tank 13 of barretter 7 through its bottom.In items experiment, adjusted and conveyed with frequency converter
The rotating speed of pump and motor 14, to reach the pan feeding flow needed for experiment, is determined with calibrated electromagnetic flowmeter 12.
According to the main structure parameters optimum results of this test platform, it is 579m to devise the maximum measurement upper limit3/ h's is quiet
Pressure type cylinder flowmeter main structure parameters are shown in Table 2.
The main structure parameters of the static pressure type cylinder flowmeter of table 2
The test principle of static pressure type cylinder flowmeter is shown in Figure 10, is specifically：The cleaned coal mud sieve bend sieve of Oversized Coking Coal Cleaning Plant
Lower water, from static pressure type cylinder flowmeter is flow to, after pan feeding slows down through barretter 7, its flowing is changed by baffle plate 3 as floatation feed
In the liquid level that the formation of feeding cylinder 2 is stable behind direction, floatation feed pond (bucket) 10 then is flowed out to from mozzle 4 by hydrostatic pressure,
Flotation production system is delivered to floatation feed pump 11.
Liquid level H values in observation cylinder 5 are determined by ultrasonic level gage 9, test signal is inputted to ad hoc computer, calculated
Go out floatation feed instantaneous delivery value Q, this numerical value can show on the display screen of flotation driver operation post and Job-Shop control room
Show to come, can also get up in calculator memory storage, call at any time.
The operation principle of the present invention is the static pressure cylinder vertical water outflowing jet in hydraulics, sees Figure 11.
In cylinder-conical cylinder, as feeding coal Q0When stable, its liquid level H remains unchanged, in hydrostatic pressure
Under, the flow flowed out from mozzle is Q1, the Q in the case where not considering the ideal conditions of any drag losses1=Q0, by measuring cylinder
Liquid level H, obtained Q is calculated using formula1Value, is exactly feeding coal Q0Value, formula is as follows：
In formula：D-water conservancy diversion bore, m；
G-acceleration of gravity, m/s2；
H-cylinder liquid level, m.
Specific cylinder is constant, then constantThen：
I.e.：Flow Q size and cylinder liquid level H1/2It is directly proportional, measures after cylinder liquid level H, feeding Q can be calculated.
Above-described embodiment only expresses one embodiment of the present invention, but therefore can not be interpreted as to model of the present invention
The limitation enclosed.It should be pointed out that for the ordinary skill technical staff of this area, not departing from the premise of present inventive concept
Under, some variations and improvement can also be made, these belong to protection scope of the present invention.
Claims (7)
1. a kind of static pressure type cylinder flowmeter, is divided into feeding cylinder and observation cylinder two parts, it is characterised in that
A. throttle orifice is carried on described observation cylinder, observation cylinder is connected by throttle orifice with feeding cylinder, observation cylinder and feeding cylinder two
Person forms linker；
B. feeding pipe is inserted with described feeding cylinder, is connected with the base opening of feeding pipe on barretter, the tube wall of barretter uniformly
Multiple small sircle holes are distributed with；Black water enters feeding cylinder through feeding pipe, barretter, and is flowed out through mozzle；
C. the feeding cylinder bottom of the flowmeter is provided with mozzle, and the length of mozzle is 0~4 with the ratio of its internal diameter；
D. the feeding cylinder tapering is provided with baffle plate.
2. static pressure type cylinder flowmeter according to claim 1, it is characterised in that described feeding cylinder is cylinder-circular cone
Type structure.
3. static pressure type cylinder flowmeter according to claim 1, it is characterised in that exported in feeding cylinder tapering away from barretter
At 200mm, a diameter of 200mm baffle plate is provided with.
4. static pressure type cylinder flowmeter according to claim 1, it is characterised in that the feeding pipe, barretter and water conservancy diversion
The internal diameter of pipe be 150mm~250mm, barretter outlet away from feeding cylinder along 1000mm.
5. static pressure type cylinder flowmeter according to claim 1, it is characterised in that the roundlet being distributed on the tube wall of barretter
Bore dia is 15mm, and the gross area of multiple small sircle holes is 1.04-1.74 times of the barretter outlet gross area.
6. static pressure type cylinder flowmeter according to claim 1, it is characterised in that described observation cylinder is provided with throttling
Hole or throttle pipe.
7. static pressure type cylinder flowmeter according to claim 6, it is characterised in that described observation cylinder is provided with throttling
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710616257.3A CN107202614A (en) | 2017-07-26 | 2017-07-26 | Static pressure type cylinder flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710616257.3A CN107202614A (en) | 2017-07-26 | 2017-07-26 | Static pressure type cylinder flowmeter |
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| Publication Number | Publication Date |
|---|---|
| CN107202614A true CN107202614A (en) | 2017-09-26 |
Family
ID=59912301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710616257.3A Pending CN107202614A (en) | 2017-07-26 | 2017-07-26 | Static pressure type cylinder flowmeter |
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| Country | Link |
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| CN (1) | CN107202614A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108853628A (en) * | 2018-01-24 | 2018-11-23 | 张书华 | A kind of medical treatment and nursing Wound cleansing apparatus |
| CN108889785A (en) * | 2018-08-09 | 2018-11-27 | 中冶赛迪技术研究中心有限公司 | Spray equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87215804U (en) * | 1987-11-22 | 1988-09-07 | 姚绪秋 | Flowmeter with stationary measuring chamber |
| CN2319789Y (en) * | 1997-12-03 | 1999-05-19 | 庄旭桢 | Weir groove type flow measuring device |
| JP2006162417A (en) * | 2004-12-07 | 2006-06-22 | Tsukasa Sokken Co Ltd | Total pressure/static pressure measuring venturi system flow measuring device |
| CN102519555A (en) * | 2011-12-26 | 2012-06-27 | 北矿机电科技有限责任公司 | Isolation cylinder for flotation pulp liquid level measuring device |
| CN204313921U (en) * | 2014-12-30 | 2015-05-06 | 宁波广博纳米新材料股份有限公司 | A kind of slurry liquid level gauge of simple and durable |
| CN204338304U (en) * | 2014-11-15 | 2015-05-20 | 中铝国际技术发展有限公司 | A kind of solid-liquid grading plant |
| CN207007244U (en) * | 2017-07-26 | 2018-02-13 | 北京国华科技集团有限公司 | Static pressure type cylinder flowmeter |
-
2017
- 2017-07-26 CN CN201710616257.3A patent/CN107202614A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87215804U (en) * | 1987-11-22 | 1988-09-07 | 姚绪秋 | Flowmeter with stationary measuring chamber |
| CN2319789Y (en) * | 1997-12-03 | 1999-05-19 | 庄旭桢 | Weir groove type flow measuring device |
| JP2006162417A (en) * | 2004-12-07 | 2006-06-22 | Tsukasa Sokken Co Ltd | Total pressure/static pressure measuring venturi system flow measuring device |
| CN102519555A (en) * | 2011-12-26 | 2012-06-27 | 北矿机电科技有限责任公司 | Isolation cylinder for flotation pulp liquid level measuring device |
| CN204338304U (en) * | 2014-11-15 | 2015-05-20 | 中铝国际技术发展有限公司 | A kind of solid-liquid grading plant |
| CN204313921U (en) * | 2014-12-30 | 2015-05-06 | 宁波广博纳米新材料股份有限公司 | A kind of slurry liquid level gauge of simple and durable |
| CN207007244U (en) * | 2017-07-26 | 2018-02-13 | 北京国华科技集团有限公司 | Static pressure type cylinder flowmeter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108853628A (en) * | 2018-01-24 | 2018-11-23 | 张书华 | A kind of medical treatment and nursing Wound cleansing apparatus |
| CN108889785A (en) * | 2018-08-09 | 2018-11-27 | 中冶赛迪技术研究中心有限公司 | Spray equipment |
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Application publication date: 20170926 |
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