CN110220575B - Device for measuring flow coefficient of venturi flowmeter - Google Patents
Device for measuring flow coefficient of venturi flowmeter Download PDFInfo
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- CN110220575B CN110220575B CN201910590671.0A CN201910590671A CN110220575B CN 110220575 B CN110220575 B CN 110220575B CN 201910590671 A CN201910590671 A CN 201910590671A CN 110220575 B CN110220575 B CN 110220575B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 202
- 238000012360 testing method Methods 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 20
- 238000010992 reflux Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 8
- 238000002474 experimental method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
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Abstract
The invention discloses a device for measuring the flow coefficient of a Venturi flowmeter, which comprises a timer, a water storage tank, a water supply mechanism and a backflow measuring mechanism which are respectively communicated with two ends of the water storage tank, and a flow guide mechanism connected between the water supply mechanism and the backflow measuring mechanism; the device has good measuring effect and high accuracy, and in the whole experiment process, the water body can be refluxed and recycled, so that the water resource is effectively saved, and the water source consumption is reduced; the water body utilization rate is improved, and the service performance is good.
Description
Technical Field
The invention relates to the technical field of fluid mechanics, in particular to a device for measuring a flow coefficient of a venturi flowmeter.
Background
Because the movement law of liquid flow is very complex, all practical problems cannot be solved by a theoretical research method completely. Many unknown fluid motion laws must also be explored and discovered through experimental studies; the equipment adopted in the existing Venturi experiment is inconvenient to operate, poor in measuring effect and low in accuracy of measuring results, and can only be suitable for measuring small flow, and the using performance is low.
Disclosure of Invention
The invention aims to provide a device for measuring the flow coefficient of a Venturi flowmeter, which solves the problems of poor measuring effect and low service performance of the conventional measuring equipment.
The technical scheme for solving the technical problems is as follows: a device for measuring the flow coefficient of a Venturi flowmeter comprises a timer, a water storage tank, a water supply mechanism and a backflow measuring mechanism which are respectively communicated with two ends of the water storage tank, and a flow guide mechanism connected between the water supply mechanism and the backflow measuring mechanism;
the water conservancy diversion mechanism is including the first water conservancy diversion subassembly and the second water conservancy diversion subassembly that set up side by side, first water conservancy diversion subassembly and second water conservancy diversion subassembly all include with the first experimental pipe of water supply mechanism intercommunication, with measure the experimental pipe of second of backward flow mechanism intercommunication and connect venturi between first experimental pipe and the experimental pipe of second, be connected with pressure measurement subassembly on the venturi, be provided with the valve on the experimental pipe of second.
Furthermore, the backflow measuring mechanism comprises a flow collecting box arranged at the upper end of the water storage tank, measuring cylinders respectively arranged at two ends of the flow collecting box, a water level measuring pin assembly arranged above the flow collecting box and a backflow pipe arranged between the measuring cylinders and the water storage tank, a valve is arranged on the backflow pipe, the bottom end of the water level measuring pin assembly is arranged in the measuring cylinders, and the end part, far away from the Venturi tube, of the second test pipe is communicated with the measuring cylinders.
Furthermore, the water level measuring needle assembly comprises a support arranged above the flow collecting box, a sleeve arranged on the support, a measuring rod arranged in the sleeve in a matched mode and a measuring needle connected to the bottom end of the measuring rod, an adjusting knob used for controlling the sleeve to move is arranged at the position where the support is connected with the sleeve, and the end portion, far away from the measuring rod, of the measuring needle extends into the measuring cylinder.
Further, the water collecting box comprises a box body arranged at the upper end of the water storage box, article placing cavities respectively arranged at two ends of the box body and a residual liquid collecting bin arranged between the article placing cavities at two ends, a measuring cylinder is arranged in the article placing cavities, and a drain pipe is arranged between the residual liquid collecting bin and the water storage box.
Furthermore, the end part, far away from the Venturi tube, of the second test tube is movably connected with a water drainage connector, and the end part of the water drainage connector is located in the collecting box.
Further, water supply mechanism including be the box of integral type structure, be located in the box and with the water supply chamber of storage water tank intercommunication, be located the water storage chamber of water supply chamber upper end and being located the water supply chamber with the upper hose between the water storage chamber, be connected with the water pump on the upper hose, first water conservancy diversion subassembly and second water conservancy diversion subassembly respectively with the water storage chamber is linked together.
Furthermore, a partition plate is arranged in the water storage cavity, and the water storage cavity is divided into an overflow area and a reflux area by the partition plate; the upper end of the clapboard is provided with a notch, the overflow area is communicated with the backflow area through the notch, the backflow area is communicated with the water supply cavity, and the first flow guide assembly and the second flow guide assembly are respectively communicated with the overflow area.
Furthermore, the pressure measuring assembly comprises a pressure measuring pipe connected to the Venturi tube and a graduated scale arranged on the outer wall of the box body, and the graduated scale corresponds to the end part, far away from the Venturi tube, of the pressure measuring pipe; the pressure measuring pipe comprises a first pressure measuring pipe and a second pressure measuring pipe, the first pressure measuring pipe is connected to the throat part of the Venturi pipe, the second pressure measuring pipe is connected to the neck part of the Venturi pipe, and the end part of the first pressure measuring pipe, far away from the Venturi pipe, and the end part of the second pressure measuring pipe, far away from the Venturi pipe, are respectively located on two sides of the graduated scale.
Furthermore, the end part of the piezometric tube is provided with a spiral joint, and the venturi tube is provided with a fixed joint matched with the spiral joint.
Further, a water inlet is arranged on the water storage tank.
The invention has the following beneficial effects: the device for measuring the flow coefficient of the Venturi flowmeter has good measuring effect and high accuracy, and a double theoretical flow measuring system is formed by the first pressure measuring component and the second pressure measuring component, so that the accuracy of theoretical flow measurement is effectively improved; a double actual flow measurement system is formed by measuring two groups of water level measuring needles in the backflow mechanism, so that the accuracy of actual flow measurement is effectively improved; in addition, the water storage tank, the water supply mechanism, the flow guide mechanism and the measuring backflow mechanism in the device form a self-circulation water flow system, and in the whole experiment process, a water body can be subjected to backflow circulation use, so that water resources are effectively saved, and the water source consumption is reduced; the joint between the piezometric tube and the Venturi tube is matched and connected, so that the connection reliability and stability of the piezometric tube and the Venturi tube are ensured; and through the drainage joint at the end part of the second test tube, a user can perform steering operation on the drainage joint as required, so that the water body is controlled to be discharged into the measuring cylinder or the residual liquid collecting bin, the accurate control on the inflow of the water body is improved, and after the test is completed, the drainage joint is aligned to the residual liquid collecting bin, so that the residual water body in the test tube after the test can flow into the water storage tank along the residual liquid collecting bin, the water body utilization rate is improved, and the service performance is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a first flow guide assembly or a second flow guide assembly according to the present invention;
FIG. 3 is a water level probe assembly of the present invention;
FIG. 4 is a schematic view of a manifold box according to the present invention;
FIG. 5 is a schematic view of the structure of the water supply mechanism according to the present invention;
FIG. 6 is an enlarged view of the point A in FIG. 2;
the reference numerals shown in fig. 1 to 6 are respectively expressed as: 1-a water storage tank, 2-a water supply mechanism, 3-a measuring reflux mechanism, 4-a flow guide mechanism, 40-a first flow guide assembly, 41-a second flow guide assembly, 401-a first test tube, 402-a second test tube, 403-a venturi tube, 5-a pressure measuring assembly, 404-a valve, 30-a flow collecting box, 31-a measuring cylinder, 32-a water level measuring needle assembly, 33-a reflux tube, 320-a bracket, 321-a sleeve, 322-a measuring rod, 323-a measuring needle, 324-an adjusting knob, 301-a box body, 302-a storage cavity, 303-a residual liquid collecting bin, 304-a drainage pipe, 20-a box body, 21-a water supply cavity, 22-a water storage cavity, 23-a water feeding pipe, 220-a clapboard, a 221-an overflow area and 222-a reflux area, 223-notch, 51-scale, 501-first pressure measuring pipe, 502-second pressure measuring pipe, 503-spiral joint, 504-fixed joint and 10-water inlet.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 2, a device for measuring the flow coefficient of a venturi flowmeter comprises a timer, a water storage tank 1, a water supply mechanism 2 and a measuring backflow mechanism 3 which are respectively communicated with two ends of the water storage tank 1, and a flow guide mechanism 4 connected between the water supply mechanism 2 and the measuring backflow mechanism 3. The timer adopts a stopwatch and is used for recording water receiving time. The water storage tank 1 is an experimental water source, the water storage tank 1, the water supply mechanism 2, the flow guide mechanism 4 and the measuring backflow mechanism 3 form a self-circulation water flow system, and experimental water circularly flows, is repeatedly used, saves water resources and reduces waste. And the water in the water supply mechanism 2 is conveyed to the measuring reflux mechanism 3 through the diversion mechanism 4, and the theoretical flow is measured. The actual flow is accurately measured by the measuring reflux mechanism 3 and the pressure measuring component 5, and the actual flow of the theoretical flowmeter is accurately measured, so that the measurement and calculation of the Venturi coefficient are realized.
The flow guide mechanism 4 comprises a first flow guide assembly 40 and a second flow guide assembly 41 which are arranged side by side, the first flow guide assembly 40 and the second flow guide assembly 41 both comprise a first test pipe 401 communicated with the water supply mechanism 2, a second test pipe 402 communicated with the measurement backflow mechanism 3 and a Venturi pipe 403 connected between the first test pipe 401 and the second test pipe 402, the Venturi pipe 403 is connected with a pressure measuring assembly 5, and a valve 404 is arranged on the second test pipe 402. Two groups of measuring systems are formed through the first flow guide assembly 40 and the second flow guide assembly 41, the accuracy of theoretical flow measurement is improved, and water in the water storage tank 1 flows through the first test pipe 401, the Venturi pipe 403, the second test pipe 402 and the measuring backflow mechanism 3 in sequence through the water supply mechanism 2 and finally flows back into the water storage tank 1. The pressure measuring assembly 5 comprises a pressure measuring pipe connected to the venturi tube 403 and a graduated scale 51 corresponding to the end of the pressure measuring pipe far away from the venturi tube 403, and the graduated scale 51 is arranged on the outer wall of the box body 20; the pressure-measuring pipe includes first pressure-measuring pipe 1 and second pressure-measuring pipe 2, and first pressure-measuring pipe 1 is connected at the throat of venturi 403, and second pressure-measuring pipe 2 is connected at the neck of venturi 403, and the tip that venturi 403 was kept away from to first pressure-measuring pipe 1 and second pressure-measuring pipe 2 are located the both sides of scale 51 respectively. The height of the water body in the pressure measuring pipe can be measured in real time through the graduated scale 51, so that the theoretical flow can be measured, and the pressure measuring pipe is convenient and reliable and is convenient to observe.
The measuring and refluxing mechanism 3 comprises a flow collecting box 30 arranged at the upper end of the water storage tank 1, measuring cylinders 31 respectively arranged at two ends of the flow collecting box 30, a water level measuring pin assembly 32 arranged above the flow collecting box 30 and a refluxing pipe 33 arranged between the measuring cylinders 31 and the water storage tank 1, wherein a valve 404 is arranged on the refluxing pipe 33, the bottom end of the water level measuring pin assembly 32 is arranged in the measuring cylinder 31, and the end part of the second test pipe 402 far away from the venturi tube 403 is communicated with the measuring cylinder 31. The water level measuring needle 323 is a main instrument for measuring the basic quantity of water level and water surface curves in experiments. The water body flowing out through the flow guide mechanism 4 enters the measuring cylinder 31 for storage, and is matched with the water level measuring needle assembly 32 to measure and read the water body liquid level in the measuring cylinder 31. The valve 404 is a flow control valve, which can control the flow of the water flowing into the measuring cylinder 31, and in the using process, the flow control valve controls different flows of the water, so as to form multiple sets of data under different flow conditions, which is helpful for improving the accuracy of the measurement. The used water body flows back to the water storage tank 1 through the return pipe 33, so that the water body can be recycled. During the experiment, earlier through water level gauge needle 323 to measuring the height of the internal water level of graduated flask 31 before the water inflow, as initial liquid level height, along with the continuous going on of experiment, the continuous inflow of water, when the water inflow was accomplished, the internal water level height of graduated flask 31 was stable, the final liquid level height of the internal water level of graduated flask 31 was surveyed to rethread water level gauge needle 323, can calculate actual flow through the difference between final liquid level height and the initial liquid level height. When the fluctuating water level is measured, the highest and lowest water levels in the measuring cylinder 31 should be measured, and the average value is taken as the average water level.
In order to improve the usability of the water level measuring needle 323, as shown in fig. 3, in the present invention, the water level measuring needle assembly 32 includes a support 320 disposed above the collecting box 30, a sleeve 321 disposed on the support 320, a measuring rod 322 disposed in the sleeve 321 in a matching manner, and a measuring needle 323 connected to the bottom end of the measuring rod 322, an adjusting knob 324 for controlling the movement of the sleeve 321 is disposed at the position where the support 320 meets the sleeve 321, and the end of the measuring needle 323 away from the measuring rod 322 extends into the measuring cylinder 31. The support 320 is the holistic bearing structure of water level measuring needle subassembly 32, sleeve 321 is installed on support 320, measuring bar 322 passes through the spring leaf and inlays admittedly on sleeve 321, thereby it reciprocates to drive sleeve 321 through its inside fluted disc, thereby adjust reciprocating of measuring needle 323, the scale mark has been marked on measuring bar 322, can realize the reading to the water level height through the scale mark, during the measurement, hold measuring bar 322 and make the bottom needle point of measuring bar 322 from the top down be close the surface of water gradually (do not mention from the aquatic), when the needle point just contacted the surface of water, can read the height size of water level, realize the survey to actual flow.
In order to improve the collecting effect of the water body in the experimental process, as shown in fig. 4, in the present invention, the collecting box 30 includes a box body 301 disposed at the upper end of the water storage tank 1, object placing cavities 302 respectively disposed at two ends of the box body 301, and a residual liquid collecting bin 303 disposed between the object placing cavities 302 disposed at two ends, a measuring cylinder 31 is disposed in the object placing cavity 302, and a drain pipe 304 is disposed between the residual liquid collecting bin 303 and the water storage tank 1. The measuring cylinder 31 is made of transparent material, and can be made of plastic material or glass material. The storage cavity 302 improves reliable supporting and fixing of the measuring cylinder 31, and improves the stability of the measuring cylinder 31 in the experimental process; when the water is not required to be supplied into the measuring cylinder 31, the end part of the second test tube 402 extends to the residual liquid collecting bin 303, so that the residual water is dripped into the residual liquid collecting bin 303 and is drained back into the water storage tank 1 through the drain pipe 304, the water utilization rate is improved, and inaccurate measurement caused by dripping of the residual water into the measuring cylinder 31 is avoided.
In order to facilitate the rapid switching of the water flow direction between the residual liquid collecting bin 303 and the measuring cylinder 31, in the invention, the end part of the second test tube 402 far away from the venturi tube 403 is movably connected with a drainage connector 405, and the end part of the drainage connector 405 is positioned in the flow collecting box 30. The drainage connector 405 is movably connected, and a user turns the drainage connector 405 to the position above the measuring cylinder 31 or the position above the residual liquid collecting bin 303 according to use requirements, so that the flow direction of the water body is quickly switched.
In order to improve the usability of the water supply mechanism 2, as shown in fig. 5, in the present invention, the water supply mechanism 2 includes a box 20 in an integrated structure, a water supply cavity 21 located in the box 20 and communicated with the water storage tank 1, a water storage cavity 22 located at the upper end of the water supply cavity 21, and a water supply pipe 23 located between the water supply cavity 21 and the water storage cavity 22, the water supply pipe 23 is connected with a water pump, and the first diversion assembly 40 and the second diversion assembly 41 are respectively communicated with the water storage cavity 22. The water pump is located water supply chamber 21, and through the water pump with the water in the storage water tank 1 through water supply pipe 23 promote to the water storage chamber 22 in, treat the invariable back of the water in the water storage chamber 22, open valve 404 and carry out the experiment operation.
In order to improve the water circulation effect in the water supply mechanism 2, in the invention, a partition plate 220 is arranged in the water storage cavity 22, and the water storage cavity 22 is divided into an overflow area 221 and a reflux area 222 by the partition plate 220; the upper end of the partition plate 220 is provided with a notch 223, the overflow area 221 is communicated with the return area 222 through the notch 223, the return area 222 is communicated with the water supply cavity 21, and the first flow guide assembly 40 and the second flow guide assembly 41 are respectively communicated with the overflow area 221. When the water in the overflow area 221 reaches the position of the gap 223, the excess water flows to the backflow area 222 through the gap 223, the backflow area 222 is communicated with the water supply cavity 21, and then flows into the water supply cavity 21 and flows back into the water storage tank 1, so as to form a water internal circulation system in the water supply mechanism 2, and improve the utilization rate of the water. For the convenience of observation, one surface of the overflow area 221 facing the first flow guide assembly 40 or the second flow guide assembly 41 is made of transparent materials, so that the capacity condition of the water body in the overflow area 221 can be observed in real time, and the service performance of the device is improved.
In order to improve the reliability of the connection between the pressure measuring pipe and the venturi tube 403, as shown in fig. 6, in the present invention, the end of the pressure measuring pipe is provided with a screw joint 503, and the venturi tube 403 is provided with a fixed joint 504 which is matched with the screw joint 503. The inner wall of screwed joint 503 is provided with the internal thread, and the outer wall of fixed joint 504 is provided with the external screw thread, and the external screw thread cooperatees with the internal thread to realize screwed joint 503 and fixed joint 504's threaded connection, its connection has self-locking performance, improves the reliable and stable nature of connection, avoids the pine to take off. And the connection is simple, and the operation is convenient.
In order to conveniently supplement water to the water storage tank 1, the water storage tank 1 is provided with a water inlet 10. Carry out the water supply through the external water source of water inlet 10 in the storage water tank 1 to form outside water supply, make device self can realize inside circulation flowing water, can realize outside water source supplementary supply again, performance is high.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A device for measuring the flow coefficient of a Venturi flowmeter is characterized by comprising a timer, a water storage tank (1), a water supply mechanism (2) and a measuring backflow mechanism (3) which are respectively communicated with two ends of the water storage tank (1), and a flow guide mechanism (4) connected between the water supply mechanism (2) and the measuring backflow mechanism (3);
the flow guide mechanism (4) comprises a first flow guide assembly (40) and a second flow guide assembly (41) which are arranged side by side, the first flow guide assembly (40) and the second flow guide assembly (41) respectively comprise a first test pipe (401) communicated with the water supply mechanism (2), a second test pipe (402) communicated with the measurement backflow mechanism (3) and a Venturi pipe (403) connected between the first test pipe (401) and the second test pipe (402), a pressure measuring assembly (5) is connected to the Venturi pipe (403), and a valve (404) is arranged on the second test pipe (402);
the measuring backflow mechanism (3) comprises a flow collecting box (30) arranged at the upper end of the water storage tank (1), measuring cylinders (31) respectively positioned at two ends of the flow collecting box (30), a water level measuring needle assembly (32) positioned above the flow collecting box (30) and a backflow pipe (33) arranged between the measuring cylinders (31) and the water storage tank (1), a valve (404) is arranged on the backflow pipe (33), the bottom end of the water level measuring needle assembly (32) is positioned in the measuring cylinders (31), and the end part, far away from the Venturi tube (403), of the second test pipe (402) is communicated with the measuring cylinders (31);
the water level measuring needle assembly (32) comprises a support (320) arranged above the flow collecting box (30), a sleeve (321) arranged on the support (320), a measuring rod (322) arranged in the sleeve (321) in a matching mode and a measuring needle (323) connected to the bottom end of the measuring rod (322), an adjusting knob (324) used for controlling the sleeve (321) to move is arranged at the position where the support (320) is connected with the sleeve (321), and the end portion, far away from the measuring rod (322), of the measuring needle (323) extends into the measuring cylinder (31);
the water supply mechanism (2) comprises a box body (20) in an integrated structure, a water supply cavity (21) which is positioned in the box body (20) and communicated with the water storage tank (1), a water storage cavity (22) which is positioned at the upper end of the water supply cavity (21), and a water supply pipe (23) which is positioned between the water supply cavity (21) and the water storage cavity (22), wherein a water pump is connected to the water supply pipe (23), and the first flow guide assembly (40) and the second flow guide assembly (41) are respectively communicated with the water storage cavity (22);
the pressure measuring assembly (5) comprises a pressure measuring pipe connected to the Venturi tube (403) and a graduated scale (51) arranged on the outer wall of the box body (20), and the graduated scale (51) corresponds to the end part, far away from the Venturi tube (403), of the pressure measuring pipe; the pressure-measuring pipe comprises a first pressure-measuring pipe (501) and a second pressure-measuring pipe (502), the first pressure-measuring pipe (501) is connected to the throat part of the Venturi pipe (403), the second pressure-measuring pipe (502) is connected to the neck part of the Venturi pipe (403), and the end part of the Venturi pipe (403) and the end part of the second pressure-measuring pipe (502) far away from the first pressure-measuring pipe (501) are respectively located on two sides of the graduated scale (51).
2. The device for measuring the flow coefficient of the venturi flowmeter according to claim 1, wherein the collecting box (30) comprises a box body (301) arranged at the upper end of the water storage tank (1), storage cavities (302) respectively arranged at two ends of the box body (301), and a residual liquid collecting bin (303) arranged between the storage cavities (302) arranged at the two ends, a measuring cylinder (31) is arranged in each storage cavity (302), and a drain pipe (304) is arranged between each residual liquid collecting bin (303) and the water storage tank (1).
3. A device for measuring the flow coefficient of a venturi meter according to any one of claims 1 to 2, characterized in that the end of the second test tube (402) far from the venturi tube (403) is movably connected with a drain connector (405), and the end of the drain connector (405) is located in the header box (30).
4. The device for measuring the flow coefficient of the venturi flowmeter according to claim 1, wherein a partition plate (220) is arranged in the water storage cavity (22), and the water storage cavity (22) is divided into an overflow area (221) and a reflux area (222) by the partition plate (220); the upper end of the partition plate (220) is provided with a notch (223), so that the notch (223) communicates the overflow area (221) with the backflow area (222), the backflow area (222) is communicated with the water supply cavity (21), and the first flow guide assembly (40) and the second flow guide assembly (41) are communicated with the overflow area (221) respectively.
5. A device for measuring the flow coefficient of a Venturi flowmeter according to claim 4, characterized in that the end of the pressure measuring pipe is provided with a screw joint (503), and the Venturi pipe (403) is provided with a fixed joint (504) matched with the screw joint (503).
6. A device for measuring the flow coefficient of a Venturi flowmeter according to claim 5, characterized in that the water storage tank (1) is provided with a water inlet (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910590671.0A CN110220575B (en) | 2019-07-02 | 2019-07-02 | Device for measuring flow coefficient of venturi flowmeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910590671.0A CN110220575B (en) | 2019-07-02 | 2019-07-02 | Device for measuring flow coefficient of venturi flowmeter |
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| CN110220575A CN110220575A (en) | 2019-09-10 |
| CN110220575B true CN110220575B (en) | 2020-09-22 |
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| CN201910590671.0A Expired - Fee Related CN110220575B (en) | 2019-07-02 | 2019-07-02 | Device for measuring flow coefficient of venturi flowmeter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6860138B1 (en) * | 2002-02-21 | 2005-03-01 | Taiwan Semiconductor Manufacturing Company | Real-time detection mechanism with self-calibrated steps for the hardware baseline to detect the malfunction of liquid vaporization system in AMAT TEOS-based Dxz chamber |
| US7231305B2 (en) * | 2003-08-07 | 2007-06-12 | Schlumberger Technology Corporation | Flow rate determination |
| CN202584505U (en) * | 2012-03-31 | 2012-12-05 | 西安理工大学 | Test instrument for venturi and orifice plate flowmeters |
| CN102865895A (en) * | 2012-05-29 | 2013-01-09 | 成都飞机设计研究所 | Venturi flow sensor |
| CN204440761U (en) * | 2015-02-02 | 2015-07-01 | 江苏农林职业技术学院 | A kind of Multifunctional fluid mechanics experimental installation |
| CN107860443A (en) * | 2017-12-12 | 2018-03-30 | 杭州天马计量科技有限公司 | Air pulsing flow standard experimental rig |
| CN108877429A (en) * | 2018-08-29 | 2018-11-23 | 苏州市格致科教仪器设备制造有限公司 | A kind of hydrodynamics comprehensive experimental device |
| CN208507043U (en) * | 2018-01-25 | 2019-02-15 | 唐山学院 | Hydrodynamics comprehensive experimental device |
-
2019
- 2019-07-02 CN CN201910590671.0A patent/CN110220575B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6860138B1 (en) * | 2002-02-21 | 2005-03-01 | Taiwan Semiconductor Manufacturing Company | Real-time detection mechanism with self-calibrated steps for the hardware baseline to detect the malfunction of liquid vaporization system in AMAT TEOS-based Dxz chamber |
| US7231305B2 (en) * | 2003-08-07 | 2007-06-12 | Schlumberger Technology Corporation | Flow rate determination |
| CN202584505U (en) * | 2012-03-31 | 2012-12-05 | 西安理工大学 | Test instrument for venturi and orifice plate flowmeters |
| CN102865895A (en) * | 2012-05-29 | 2013-01-09 | 成都飞机设计研究所 | Venturi flow sensor |
| CN204440761U (en) * | 2015-02-02 | 2015-07-01 | 江苏农林职业技术学院 | A kind of Multifunctional fluid mechanics experimental installation |
| CN107860443A (en) * | 2017-12-12 | 2018-03-30 | 杭州天马计量科技有限公司 | Air pulsing flow standard experimental rig |
| CN208507043U (en) * | 2018-01-25 | 2019-02-15 | 唐山学院 | Hydrodynamics comprehensive experimental device |
| CN108877429A (en) * | 2018-08-29 | 2018-11-23 | 苏州市格致科教仪器设备制造有限公司 | A kind of hydrodynamics comprehensive experimental device |
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| CN110220575A (en) | 2019-09-10 |
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Granted publication date: 20200922 |