CN107727164B - Self-adjusting precession vortex flowmeter under abrasion of rotor blade - Google Patents
Self-adjusting precession vortex flowmeter under abrasion of rotor blade Download PDFInfo
- Publication number
- CN107727164B CN107727164B CN201711105134.XA CN201711105134A CN107727164B CN 107727164 B CN107727164 B CN 107727164B CN 201711105134 A CN201711105134 A CN 201711105134A CN 107727164 B CN107727164 B CN 107727164B
- Authority
- CN
- China
- Prior art keywords
- shell
- gravity
- sensor
- gravity sensor
- groove track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- G01F1/05—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 mechanical effects
- G01F1/20—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 mechanical effects by detection of dynamic effects of the flow
- G01F1/32—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 mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses an automatic adjusting precession vortex flowmeter under the abrasion of a rotor blade. An inner flow passage is arranged in the shell, and a spinning device and a despin device are respectively arranged at the front end and the rear end of the inner flow passage of the shell; three gravity sensors are arranged in the shell below the cyclone, a measuring groove track is formed in the top of the middle of the inner flow path of the shell, the piezoelectric sensors are vertically and hermetically arranged in the measuring groove track through a telescopic sealing partition plate assembly, and the probe ends of the piezoelectric sensors penetrate through the measuring groove track downwards and extend into the inner flow path of the shell; an electromagnetic pushing device is arranged on the outer top surface of the shell beside the measuring groove track, the electromagnetic pushing device is connected with a telescopic push rod, and the end part of the telescopic push rod is propped against the piezoelectric sensor. According to the invention, the position of the piezoelectric sensor and the preset instrument coefficient are automatically corrected and adjusted according to the blade thickness corresponding to the mass under the condition of different rotor blade abrasion, so as to achieve the purpose of accurately measuring the flow.
Description
Technical Field
The invention relates to a self-adjusting novel precession vortex flowmeter, in particular to a precession vortex flowmeter which can automatically adjust preset instrument coefficients and piezoelectric sensor positions to accurately measure when a gyrator is worn at different degrees.
Background
Precession vortex flowmeters also play an increasingly important role in everyday life. In many industrial fields, precession vortex flow machines also play an essential role, and flow measuring devices in the chemical field not only maintain stable progress of chemical reactions but also avoid unnecessary waste and danger. However, under the condition of actual use, the gas contains more or less solid particles, so that the rotor blade can produce abrasion phenomena with different degrees after multiple uses. The abrasion of the vortex tube mainly causes the thinning of the blade of the vortex tube, can have larger influence on the instrument coefficient of the vortex-entering flowmeter and the offset position of the vortex core, and influences the accuracy of flow measurement. However, the conventional precession vortex flowmeter on the market cannot detect abrasion of a gyrator, and cannot adjust the instrument coefficient of the flowmeter and the vortex core frequency detection position under the condition that the blades of the gyrator are abraded.
In actual industrial production, when the blade of the spinning machine is found to be worn, the spinning machine can only be replaced by a new spinning machine, so that the worn spinning machine for maintaining the measurement accuracy is discarded, thereby increasing the cost and reducing the working efficiency. When the impeller blade is not found to be severely worn, the thickness of the impeller blade has great influence on an internal flow field, the accuracy of the traditional precession vortex flowmeter measurement can be greatly reduced, the preset instrument coefficient of the flowmeter is greatly different from the actual instrument coefficient, the great deviation of a measurement result is directly caused, and the inaccurate flowmeter measurement can cause great hidden danger and dangerous accidents in industrial production. Based on the method, the invention provides the precession vortex flowmeter which can automatically adjust the preset instrument coefficient and the piezoelectric sensor position to finish accurate measurement when the gyrator is worn at different degrees.
Disclosure of Invention
The invention provides a precession vortex flowmeter capable of automatically adjusting preset instrument coefficients and piezoelectric sensor positions to finish accurate measurement when a gyrator is worn at different degrees.
The technical scheme of the invention is as follows:
the invention comprises a gravity sensor I, a gravity sensor II, a gravity sensor III, an electromagnetic pushing device, a telescopic push rod, a piezoelectric sensor and a telescopic sealing partition plate assembly; an inner runner is arranged in the shell, the front end of the shell is connected with the inlet flange, the rear end of the shell is connected with the outlet flange, and the spinning device and the despin device are respectively arranged at the front end and the rear end of the inner runner of the shell; a gravity sensor I, a gravity sensor II and a gravity sensor III are arranged in the shell below the spinning jack, and the gravity sensor I, the gravity sensor II and the gravity sensor III are axially arranged at intervals along the inner flow path of the shell; a measuring groove track is formed in the top of the middle of the flow channel in the shell, the piezoelectric sensor is vertically and hermetically arranged in the measuring groove track through a telescopic sealing partition plate assembly, and a probe end of the piezoelectric sensor downwards penetrates through the measuring groove track and stretches into the flow channel in the shell; an electromagnetic pushing device is arranged on the outer top surface of the shell beside the measuring groove track, the output end of the electromagnetic pushing device is connected with a telescopic push rod, and the end part of the telescopic push rod is propped against the piezoelectric sensor.
The electromagnetic pushing device works to drive the telescopic push rod to push the piezoelectric sensor to axially move along the inner flow path in the measuring groove track, so that the vortex core frequency of vortex generated by the vortex generator with different wear degrees is detected.
The top of the shell is provided with a display and processing device, the gravity sensor I, the gravity sensor II and the gravity sensor III are connected into the display and processing device through gravity signal transmission lines, the piezoelectric sensor is connected into the display and processing device through frequency signal transmission lines, and frequency data acquired by the piezoelectric sensor are transmitted into the display and processing device through the frequency signal transmission lines.
The shell is also provided with a temperature sensor which penetrates through a mounting hole arranged on the shell and stretches into an inner runner of the shell, and the temperature sensor is connected to the display and processing device through a temperature signal transmission line.
The weight signals of the spinning machine are collected through three gravity sensors, the abrasion condition of the spinning machine is obtained through the weight signals, and the weight signals of the spinning machine collected by the gravity sensors are transmitted to the spinning machine through a gravity signal output interface, a gravity signal transmission line and a gravity signal input interface.
The telescopic sealing partition plate assembly is provided with a plurality of sleeve frame pieces, partition plate built-in springs and sealing gaskets which are nested in sequence from inside to outside, each two adjacent sleeve frame pieces are connected with the corresponding partition plate built-in springs, the sealing gaskets are arranged between the contact surfaces of the adjacent sleeve frame pieces, the sealing gaskets are also arranged between the sleeve frame pieces and the measuring groove tracks of the shell, and lubricating oil is arranged at the sealing gaskets, so that the adjacent sleeve frame pieces are sealed through lubrication.
The length of the piezoelectric sensor is matched with the size of the flow channel in the shell, so that the influence on the gas internal flow field is reduced. The sizes of the spinning device and the despin device are matched with the size of the runner in the shell. The sizes of the gravity sensor I, the gravity sensor II and the gravity sensor III are matched with the size of the runner in the shell, so that the influence on the gas internal flow field is reduced. Meanwhile, the lengths of the gravity sensor I, the gravity sensor II and the gravity sensor III are matched with the size of the spinning machine, and normal use of the spinning machine cannot be interfered. The length of the temperature sensor is matched with the size of the flow channel in the shell, so that the influence on the gas flow field is reduced.
The wall surface of each section in the telescopic sealing partition plate assembly is in seamless fit, so that gas leakage is avoided, and meanwhile, the two sections can slide mutually. The elastic coefficient of the baffle plate built-in spring is matched with the deformation amount which occurs actually, so that the phenomenon that gas leakage is generated when the elastic coefficient of the baffle plate built-in spring exceeds the elastic coefficient of the baffle plate built-in spring and cannot be close to the wall surface is prevented.
And the gravity sensors I, II and III are uniformly arranged below the spinning machine so as to ensure that two gravity sensors always support the spinning machine when spinning machines with different leads are used. Two of the gravity sensors supporting the jack will generate a gravity pulse voltage when being subjected to the pressure of the jack. Different weights of the spinners will cause the gravity sensor to generate voltage pulse signals of different frequencies. The voltage pulse signals enter a processor in the flowmeter processor through the gravity signal output interface and the gravity signal input interface to match the voltage pulse signals with different frequencies with the voltage pulse signals corresponding to the spinners with different blade thicknesses in the storage, the matched voltage signals with different frequencies with different blade thicknesses are input into the built-in filter, the filter filters the voltage signals with different frequencies into filtering signals in a specific frequency range, and electromagnetic filtering signals with different frequencies are output to the electromagnetic pushing device.
The lower the weight of the rotator is, the lower the frequency of a voltage signal generated by the gravity sensor is, the lower the frequency of an electromagnetic filtering signal output by the processor to the electromagnetic pushing device is, and the lower the pushing force generated by the electromagnetic pushing device on the telescopic pushing rod is, so that the piezoelectric sensor is kept at the position of the outlet of the expansion section of the flow passage when the electromagnetic filtering signal reaches the minimum filtering value; the higher the weight of the rotator is, the higher the frequency of a voltage signal generated by the gravity sensor is, the higher the frequency of an electromagnetic filtering signal output by the processor to the electromagnetic pushing device is, and the greater the pushing force generated by the electromagnetic pushing device on the telescopic push rod is, so that the piezoelectric sensor stays at the position of the inlet of the expansion section of the runner when the electromagnetic filtering signal reaches the maximum filtering value.
The detection signal of the gravity sensor is transmitted to the flowmeter processor through the gravity signal transmission line, the processor compares the weight of the current spinning jack with the weights of spinning jacks with different blade thicknesses in the database, the instrument coefficient of the spinning jack matched with the current spinning jack is preset for use, and vortex core position information is transmitted to the electromagnetic pushing device through electromagnetic signals.
The electromagnetic pushing device controls the telescopic push rod by receiving different electromagnetic signals. The advancing and retreating of the telescopic push rod in the measuring groove track plays a role in adjusting the position of the piezoelectric sensor.
The telescopic sealing baffle plate assembly plays a role in preventing gas leakage during the movement of the piezoelectric sensor. The vortex core frequency fed back by the piezoelectric sensor and the preset instrument coefficient determined by the abrasion condition of the cyclone, fed back by the gravity sensor I, the gravity sensor II and the gravity sensor III, are used for automatically calculating the flow of the detected gas at the moment by the flowmeter processing system, and the flow is displayed on the display and processing device, so that the purpose that the gas flow can still be accurately measured by the cyclone under different abrasion degrees is achieved.
The invention has the technical effects that:
the invention is not influenced by the abrasion degree of the cyclone to the measured gas flow measurement, realizes the precession vortex flowmeter which can automatically adjust the preset instrument coefficient and the piezoelectric sensor position to finish accurate measurement when the cyclone is at different abrasion degrees, ensures the measurement accuracy and reduces the potential hidden trouble of accident occurrence in industrial production.
Drawings
FIG. 1 is a block diagram of a self-adjusting precession vortex flowmeter;
FIG. 2 is a rear view of a self-adjusting precession vortex flowmeter;
FIG. 3 is a partial detail view of the adjustment device;
FIG. 4 is an enlarged view of a portion of the gravity sensing device;
fig. 5 is a schematic diagram of the operation of the telescoping seal spacer assembly.
In the figure: inlet flange 1, casing 2, jack 3, gravity sensor i 4, gravity sensor ii 5, gravity sensor iii 6, gravity signal transmission line 7, gravity signal input interface 8, display and processing device 9, adjustment signal output interface 10, signal output line 11, electromagnetic pushing device 12, telescopic push rod 13, piezoelectric sensor 14, measurement groove track 15, telescopic sealing diaphragm assembly 16, temperature sensor 17, racemizer 18, outlet flange 19, total signal output interface 20, gravity signal output interface 21, frequency signal transmission line 22, temperature signal transmission line 23, and temperature diaphragm innerspring 24.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
As shown in FIG. 1, the implementation of the invention comprises a gravity sensor I4, a gravity sensor II 5, a gravity sensor III 6, an electromagnetic pushing device 12, a telescopic push rod 13, a piezoelectric sensor 14 and a telescopic sealing partition plate assembly 16; an inner runner is arranged in the shell 2, the front end of the shell 2 is connected with the inlet flange 1, the rear end of the shell 2 is connected with the outlet flange 19, and the cyclone 3 and the cyclone 18 are respectively arranged at the front end and the rear end of the inner runner of the shell 2; the gravity sensor I4, the gravity sensor II 5 and the gravity sensor III 6 for measuring the weight of the spinning jack 3 are arranged in the shell 2 below the spinning jack 3, and as shown in fig. 4, the gravity sensor I4, the gravity sensor II 5 and the gravity sensor III 6 are axially arranged at intervals along the flow path in the shell 2, and the gravity sensor I4, the gravity sensor II 5 and the gravity sensor III 6 are embedded in an installation groove arranged in the shell 2; a measuring groove track 15 is formed in the top of the middle of the flow channel in the shell 2, a piezoelectric sensor 14 is vertically and hermetically arranged in the measuring groove track 15 through a telescopic sealing partition plate assembly 16, and the probe end of the piezoelectric sensor 14 downwards passes through the measuring groove track 15 and stretches into the flow channel in the shell 2; an electromagnetic pushing device 12 is arranged on the outer top surface of the shell 2 beside the measuring groove track 15, the output end of the electromagnetic pushing device 12 is connected with a telescopic pushing rod 13, the output end of the electromagnetic pushing device 12 is parallel to the axial direction of the inner flow path, and the end part of the telescopic pushing rod 13 is propped against the piezoelectric sensor 14.
As shown in fig. 3, the casing 2 is further provided with a temperature sensor 17, the temperature sensor 17 is connected to the display and processing device 9 through a temperature signal transmission line 23, the display and processing device 9 is provided with an adjusting signal output interface 10, and the temperature signal transmission line 23 is connected to the adjusting signal output interface 10.
The display and processing device 9 is provided with a total signal output interface 20, and the total signal output interface 20 is connected to an external control console so as to achieve the purpose of importing all detection data into the control console.
As shown in fig. 1 and 2, a display and processing device 9 is arranged at the top of the shell 2, the gravity sensor i 4, the gravity sensor ii 5 and the gravity sensor iii 6 are connected to the display and processing device 9 through a gravity signal transmission line 7, a gravity signal output interface 21 is arranged on the shell 2, and a gravity signal input interface 8 is arranged on the display and processing device 9; the piezoelectric sensor 14 is connected to the display and processing device 9 via a frequency signal transmission line 22, and frequency data acquired by the piezoelectric sensor 14 is transmitted to the display and processing device 9 via the frequency signal transmission line 22.
The weight signals of the spinning jack 3 are collected through three gravity sensors, the abrasion condition of the spinning jack 3 is obtained through the weight signals, and the weight signals of the spinning jack collected by the gravity sensors are transmitted to the display and processing device 9 through the gravity signal output interface 21, the gravity signal transmission line 7 and the gravity signal input interface 8.
Comparing the weight of the current spinning machine 3 with the weights of spinning machines with different blade thicknesses in a database, finding the spinning machine with a certain blade thickness, which corresponds to the weight of the current spinning machine 3 in the database, using the instrument coefficient corresponding to the spinning machine, outputting vortex core position information corresponding to the spinning machine in the form of electromagnetic signals, and transmitting the signals to an electromagnetic pushing device 12 through an adjusting signal output interface 10 and a signal output line 11 so as to control the thrust of the electromagnetic pushing device 12. The electromagnetic pushing device 12 works to drive the telescopic pushing rod 13 to push the piezoelectric sensor 14 to axially move along the inner flow path in the measuring groove track 15, so that the vortex core frequency of the vortex generated by the vortex generator 3 with different wear degrees is detected.
The electromagnetic pushing device 12 mainly comprises magnetic poles and coils, and different input signals can enable the electromagnetic pushing device 12 to generate different pushing forces. The telescopic push rod 13 is connected with the electromagnetic pushing device 12, and the pushing force generated by the electromagnetic pushing device 12 adjusts the telescopic distance of the telescopic push rod 13. Meanwhile, the telescopic push rod 13 is attached to the piezoelectric sensor 14, and the movement of the telescopic push rod 13 drives the piezoelectric sensor 14 to move in the measuring groove track 15 together, so that the purposes of adjusting the measuring position of the piezoelectric sensor 14 and accurately measuring the vortex core frequency generated by the spinning machine with different wear degrees are achieved.
The telescopic sealing baffle assembly 16 is provided with a plurality of sleeve frame pieces, baffle built-in springs 24 and sealing gaskets which are nested in sequence from inside to outside, the baffle built-in springs 24 are connected between the adjacent sleeve frame pieces, the sealing gaskets are arranged between the contact surfaces of the adjacent sleeve frame pieces, the sealing gaskets are also arranged between the sleeve frame pieces and the measuring groove tracks 15 of the shell 2, and lubricating oil is arranged at the sealing gaskets, so that the adjacent sleeve frame pieces are sealed through lubrication.
In particular embodiments, an outermost one of the plurality of nested nest frame members is connected to the outer side wall of the piezoelectric sensor 7 and an innermost one of the plurality of nested nest frame members is connected to the wall of the through slot.
The diaphragm built-in springs 24 are arranged inside the telescopic sealing diaphragm assembly 16, so that when the telescopic sealing diaphragm assembly 16 is stressed, all the sections of frame sleeving pieces have good extensibility, and the wall surface is tightly clung to seal, and the purpose that the piezoelectric sensor 7 can not leak gas from the measuring groove track 15 when moving in the measuring groove track 15 is achieved.
The inlet end of the shell 2 is connected with a gas particle concentration detector, and gas enters the shell 2 after the gas particle concentration detector detects the gas particle concentration. The piezoelectric sensor 7 takes the pressure pulsation frequency acquired by itself as vortex core frequency, the abrasion condition of the cyclone 3 is obtained through the weight signals of the gravity sensors 4, 5 and 6, the preset instrument coefficient of the gas particle concentration detector is determined according to the abrasion condition of the cyclone 3, and the flow of the detected gas is calculated through the vortex core frequency and the preset instrument coefficient and is displayed on the display and processing device 9, so that the purpose that the cyclone can accurately measure the gas flow under different abrasion degrees is achieved.
Specifically, the gas flow is obtained through calculation of vortex core frequency and preset instrument coefficients by the following formula:
Q＝f/K
wherein Q represents flow, f represents vortex core frequency, and K represents preset instrument coefficient.
The embodiment of the invention performs standard flow measurement, and under the condition that three different blade thicknesses generated by blade abrasion are adjusted by preset instrument coefficients, the results of gas flow obtained by pushing the piezoelectric sensor at three different positions by the electromagnetic pushing device 12 are shown in the following table:
TABLE 1
The upper table shows that the flow detected by the piezoelectric sensor at the front part of the groove track is more accurate and is close to the standard flow when the thickness of the blade is 2.5 mm; the flow detected by the piezoelectric sensor positioned in the middle of the groove track when the thickness of the blade is 3.5mm is more accurate and is close to the standard flow; the piezoelectric sensor is located the flow that the flow detected of recess track rear portion department under blade thickness 4.5mm more accurate, is close standard flow.
Therefore, the invention automatically corrects and adjusts the position of the piezoelectric sensor and the preset instrument coefficient according to the mass of different rotor blade wearing conditions so as to achieve the purpose of accurately measuring the flow.
Claims (5)
1. A self-adjusting precession vortex flowmeter under the wear of the rotor blades, characterized in that: the device comprises a gravity sensor I (4), a gravity sensor II (5), a gravity sensor III (6), an electromagnetic pushing device (12), a telescopic push rod (13), a piezoelectric sensor (14) and a telescopic sealing partition plate assembly (16); an inner runner is arranged in the shell (2), the front end of the shell (2) is connected with the inlet flange (1), the rear end of the shell (2) is connected with the outlet flange (19), and the spinning device (3) and the racemizer (18) are respectively arranged at the front end and the rear end of the inner runner of the shell (2); a gravity sensor I (4), a gravity sensor II (5) and a gravity sensor III (6) are arranged in the shell (2) below the spinning jack (3), and the gravity sensor I (4), the gravity sensor II (5) and the gravity sensor III (6) are axially arranged at intervals along an inner flow path of the shell (2); a measuring groove track (15) is formed in the top of the middle of the inner runner of the shell (2), the piezoelectric sensor (14) is vertically and hermetically arranged in the measuring groove track (15) through a telescopic sealing partition plate assembly (16), and the probe end of the piezoelectric sensor (14) downwards penetrates through the measuring groove track (15) and stretches into the inner runner of the shell (2); an electromagnetic pushing device (12) is arranged on the outer top surface of the shell (2) beside the measuring groove track (15), the output end of the electromagnetic pushing device (12) is connected with a telescopic push rod (13), and the end part of the telescopic push rod (13) is propped against the piezoelectric sensor (14);
the electromagnetic pushing device (12) works to drive the telescopic pushing rod (13) to push the piezoelectric sensor (14) to axially move along the inner flow path in the measuring groove track (15) so as to realize detection of vortex core frequencies of vortexes generated by the rotator (3) with different wear degrees.
2. A self-adjusting precession vortex flowmeter under rotor blade wear as claimed in claim 1 wherein: the top of the shell (2) is provided with a display and processing device (9), the gravity sensor I (4), the gravity sensor II (5) and the gravity sensor III (6) are connected to the display and processing device (9) through a gravity signal transmission line (7), the piezoelectric sensor (14) is connected to the display and processing device (9) through a frequency signal transmission line (22), and frequency data acquired by the piezoelectric sensor (14) are transmitted to the display and processing device (9) through the frequency signal transmission line (22).
3. A self-adjusting precession vortex flowmeter under rotor blade wear as claimed in claim 1 wherein: the temperature sensor (17) is further arranged on the shell (2), penetrates through the mounting hole formed in the shell (2) and stretches into the inner flow path of the shell (2), and the temperature sensor (17) is connected to the display and processing device (9) through the temperature signal transmission line (23).
4. A self-adjusting precession vortex flowmeter under rotor blade wear as claimed in claim 1 wherein: the weight signals of the spinning machine (3) are collected through three gravity sensors, the wear condition of the spinning machine (3) is obtained through the weight signals, the corresponding blade thickness is obtained, and the weight signals of the spinning machine collected by the gravity sensors are transmitted to the spinning machine through a gravity signal output interface (21), a gravity signal transmission line (7) and a gravity signal input interface (8).
5. A self-adjusting precession vortex flowmeter under rotor blade wear as claimed in claim 1 wherein: the telescopic sealing partition plate assembly (16) is provided with a plurality of sleeve frame pieces, partition plate built-in springs (24) and sealing gaskets which are nested in sequence from inside to outside, each of the adjacent sleeve frame pieces is connected with the corresponding partition plate built-in spring (24), the sealing gaskets are arranged between the contact surfaces of the adjacent sleeve frame pieces, the sealing gaskets are also arranged between the sleeve frame pieces and the measuring groove tracks (15) of the shell (2), and lubricating oil is arranged at the sealing gaskets, so that the adjacent sleeve frame pieces are sealed through lubrication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711105134.XA CN107727164B (en) | 2017-11-10 | 2017-11-10 | Self-adjusting precession vortex flowmeter under abrasion of rotor blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711105134.XA CN107727164B (en) | 2017-11-10 | 2017-11-10 | Self-adjusting precession vortex flowmeter under abrasion of rotor blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107727164A CN107727164A (en) | 2018-02-23 |
| CN107727164B true CN107727164B (en) | 2023-09-01 |
Family
ID=61215763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711105134.XA Active CN107727164B (en) | 2017-11-10 | 2017-11-10 | Self-adjusting precession vortex flowmeter under abrasion of rotor blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107727164B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352429A (en) * | 2018-10-12 | 2019-02-19 | 南京钢铁股份有限公司 | A kind of throwing paddle recycling and reusing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3038497B2 (en) * | 1989-12-22 | 2000-05-08 | ザ フォックスボロ カンパニー | Piezoelectric differential pressure vortex sensor |
| JP2002515127A (en) * | 1994-08-31 | 2002-05-21 | バーチュアル・アイ／オゥ・インコーポレイテッド | Personal display system |
| CN103822670A (en) * | 2013-12-02 | 2014-05-28 | 天津斯秘特精密仪表股份有限公司 | Novel gas turbine flow meter |
| CN204831397U (en) * | 2015-05-12 | 2015-12-02 | 安徽天维仪表有限公司 | Swirl flowmeter's a spigot |
| CN207395813U (en) * | 2017-11-10 | 2018-05-22 | 浙江理工大学 | A kind of self-interacting type precession vortex flow apparatus under pipe cyclone blade wear |
-
2017
- 2017-11-10 CN CN201711105134.XA patent/CN107727164B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3038497B2 (en) * | 1989-12-22 | 2000-05-08 | ザ フォックスボロ カンパニー | Piezoelectric differential pressure vortex sensor |
| JP2002515127A (en) * | 1994-08-31 | 2002-05-21 | バーチュアル・アイ／オゥ・インコーポレイテッド | Personal display system |
| CN103822670A (en) * | 2013-12-02 | 2014-05-28 | 天津斯秘特精密仪表股份有限公司 | Novel gas turbine flow meter |
| CN204831397U (en) * | 2015-05-12 | 2015-12-02 | 安徽天维仪表有限公司 | Swirl flowmeter's a spigot |
| CN207395813U (en) * | 2017-11-10 | 2018-05-22 | 浙江理工大学 | A kind of self-interacting type precession vortex flow apparatus under pipe cyclone blade wear |
Non-Patent Citations (1)
| Title |
|---|
| 张克平.基于FLUENT的磨损试验机磨料流场模拟和试验验证.《机械设计》.2015,全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107727164A (en) | 2018-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103195412B (en) | A kind of mechanical underground caliper probe and application process | |
| CN104389581B (en) | Underground fluid induction device and fluid flow velocity measuring system using same | |
| CN102680031B (en) | Method for measuring fan delivery by static pressure difference | |
| CN108152361B (en) | Online engine oil metal abrasive particle and temperature integrated monitoring device and method | |
| CN118190081A (en) | Vortex flowmeter with reduced process intrusion | |
| CN107727164B (en) | Self-adjusting precession vortex flowmeter under abrasion of rotor blade | |
| CN106152991A (en) | Shaft sleeve parts inner and outer diameter measurement equipment | |
| CN107132166A (en) | A kind of direct insertion dust concentration tester and measuring method | |
| CN102353406A (en) | Flowmeter with middle through-hole movable throttling element connected with elastic membranes or bellows | |
| CN209342180U (en) | A kind of Pi Tuoba flowmeter | |
| CN103206923B (en) | A kind of Multi-arm underground caliper measurement probe and application process | |
| CN104502162A (en) | Dust sampler and dust concentration calibrating device using dust sampler | |
| CN202471144U (en) | High-precision wide-range flowmeter | |
| CN106840961B (en) | Determine the experimental rig and test method of the high-speed flow coefficient of friction resistance | |
| CN105698877B (en) | A kind of fluids within pipes flow rate measuring system and method | |
| CN202693044U (en) | Horizontal float flow meter | |
| CN102589623B (en) | High-accuracy wide-range flow meter | |
| CN208333627U (en) | A kind of fluid flowmeter on-line checking self-calibrating device | |
| CN104459197A (en) | Method and system for lowering site pipeline gas flow rate measurement lower limit | |
| CN107367305A (en) | A kind of moment of torsion flowmeter and its method of work | |
| CN103822670A (en) | Novel gas turbine flow meter | |
| CN206788610U (en) | A kind of measurement apparatus | |
| CN207395813U (en) | A kind of self-interacting type precession vortex flow apparatus under pipe cyclone blade wear | |
| CN107764341B (en) | Novel precession vortex flowmeter applicable to gases with different particle concentrations | |
| CN102095359B (en) | Force balance type transmitter of strain type displacement detecting element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |