CN101871798A - System for accurately measuring power gravity flow at real time - Google Patents
System for accurately measuring power gravity flow at real time Download PDFInfo
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- CN101871798A CN101871798A CN 201010181943 CN201010181943A CN101871798A CN 101871798 A CN101871798 A CN 101871798A CN 201010181943 CN201010181943 CN 201010181943 CN 201010181943 A CN201010181943 A CN 201010181943A CN 101871798 A CN101871798 A CN 101871798A
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- rotating shaft
- powder
- gravity flow
- torque
- gravity
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Abstract
The invention discloses a system for accurately measuring powder gravity flow at real time, which comprises a power collection device and computer software, and can perform digital monitoring on the powder flow through real-time accurate measurement on the power gravity flow; the powder collection device is arranged at point location needs to be monitored; the powder acts on a measurement conic cap through a blanking tube retained with a seal powder column according to the gravity thereof to lead the rotating shaft to rotate to generate a positive gravitational torque; a screw rod which is coaxial with the rotating shaft and provided with a heavy punch can generate a negative torque; the rotating shaft can rotate a certain angle according to the difference value of the positive gravitational torque and the negative torque; the angle that the rotating shaft rotates is in direct proportion with the gravity flow of powder passing the measurement conic cap; an angular transducer records the angle that the rotating shaft rotates, can output 4-20mA standard stimulation circuit to the computer software; and the real-time gravity flow and a flow tendency chart of the powder are displayed through operation.
Description
Technical field
The present invention relates to a kind of system for accurately measuring power gravity flow at real time.
Background technology
In commercial production, the conveying of solid powder and use need monitoring flow and its feed status of supervision in real time, and the more important thing is needs by the digital supervision powder flow, reaches to produce energy-saving effect and safe failure-free operation.Up to now, also there is not the accurate measurement technology of accurate measurement powder flow in real time in the actual production, for example pulverized coal preparation of coal-burning power plant and flyash air-transport system, the flow of accurate measurement coal dust and flyash in real time consequently is difficult to finish the target of energy-saving and emission-reduction.
Summary of the invention
The objective of the invention is: by the accurate measurement to the real-time gravity flow of powder, but the digital supervision powder flow satisfies the condition of safety and economic operation, reaches the target of energy-saving and emission-reduction.System for accurately measuring power gravity flow at real time is made up of gravity flow harvester and computing machine software, harvester is installed in the some position that needs monitoring, powder acts on by the material blanking tube of possessing the sealing powder post according to its gravity and measures on the awl cap, rotating shaft is rotated produce the forward gravitational torque, with the coaxial screw mandrel that the band weight also is housed of rotating shaft, coaxial rotation can produce opposing torque, positive and negative two make rotating shaft produce moment of torsion to torque, the rotating shaft meeting is according to the difference rotating certain angle of forward torque and opposing torque, the angle that rotating shaft is rotated is directly proportional by the gravity flow of measuring awl cap powder with powder, the other end in rotating shaft is equipped with angular transducer, the angle that the record rotating shaft is rotated, exportable 4-20mA standard analog electric current is given the data acquisition interface of computing machine software, computing machine is through real-time operation, screen display goes out digital flow, relevant technologies parameter and show traffic trends figure offers the adjust foundation of service data of operations staff, realizes the objectives of energy-saving and emission-reduction.
Description of drawings
The structure of system for accurately measuring power gravity flow at real time harvester is seen accompanying drawing: Fig. 1 is the stereo appearance figure of system for accurately measuring power gravity flow at real time harvester; Fig. 2 is front elevation and the vertical view that shows the outside main parts size of harvester; Fig. 3 is the view of A-A section in Fig. 2 front elevation, mainly represents its cut-away view; Fig. 4 is the B-B cross section view in Fig. 2 vertical view, mainly express an end of 14. rotating shafts balance device 15. leading screws are installed, the other end is installed 19. angular transducers that can show the rotating shaft angle, and the title of each parts reaches and illustrates as follows in the position of harvester among the figure: 1. material blanking tube 2. casings 3. are measured awl caps 4. push rods 5. pilot sleeves 6. band steel supports 7. shift forks 8. trundles 9. trundle axles 10. inspection doors 11. circumference joints 12. screws 13. bearing block assemblies 14. rotating shafts 15. leading screws 16. lock screws 17. jackscrews 18. fixed supported slabs 19. angular transducers 20. data line connector lugs 21. adjustment screws 22. weights 23. and are adjusted weights 24. cases
Embodiment
In the Figure of description: the system for accurately measuring power gravity flow at real time data collector is made up of following parts: the casing (2) of band circumference joint (11) is a closed container, sidewall at casing is provided with inspection door (10), the end face of casing is provided with material blanking tube (1), the lower port of material blanking tube can close or open with measurement awl cap (3), the upper end of push rod (4) is a spherical, match with the spherical concave surface of measuring awl crown portion, can allow to measure the awl cap swing is in a small amount arranged, so that close when measuring the awl cap, can adjust tight closing automatically with the material blanking tube lower port, push rod is together moved up and down by pilot sleeve (5) guiding and measurement awl cap, it is the trundle (8) of rotation axis that the lower semisection of push rod is provided with little roller bearing (9), shift fork (7) contacts with trundle on the push rod, the shift fork inner face can move freely with the rotation direction of trundle, the other end of shift fork and rotating shaft (14) are affixed, can drive push rod by shift fork and measure the awl cap with the rotation of rotating shaft and move up and down, rotating shaft passes box body wall, the two ends of rotating shaft are supported by the bearing block assembly (13) that casing two lateral walls connect respectively, one end of rotating shaft and angular transducer (19) be coaxial, and be connected can coaxial synchronous rotation, drawing data line connector lug (20) on the shell of angular transducer is linked with the computer data acquiring mouth, can carry 4-20mA standard analog electric current to computing machine, the shell of angular transducer is fixed on the fixed supported slab (18), adjust its electronics zero-bit by the position of adjusting screw (21) adjustable angle sensor outer housing, angular transducer and rotating shaft end thereof are by case with lock (24) closed dust, the other end leading screw (15) of rotating shaft is connected with rotating shaft is coaxial, leading screw is fastening by check nut (16) and lock screw (17), leading screw is by weight (22) and adjust weight (23), is used for setting the opposing torque amount of leading screw.
Claims (2)
1. system for accurately measuring power gravity flow at real time is made up of gravity flow harvester and computing machine software, and the structure of harvester is mainly measured awl cap 4. push rods 5. pilot sleeves 7. shift forks 8. trundles 13. bearing block assemblies 14. rotating shafts 15. leading screws 19. angular transducers 22. weights 23. adjustment weights by 1. material blanking tubes, 2. casings 3. and formed.
2. the gravity of powder acts on by the material blanking tube of possessing the sealing powder post and measures on the awl cap, the awl cap moves up and down and drives rotating shaft rotation generation forward gravitational torque, produce opposing torque with the screw mandrel coaxial rotation of band weight, positive and negative two make rotating shaft produce moment of torsion to torque, according to positive and negative two difference rotating shaft rotating certain angle to torque, the angle that rotating shaft is rotated is directly proportional by the gravity of measuring awl cap powder with powder, the other end in rotating shaft is equipped with angular transducer, exportable 4-20mA standard analog electric current is given the data acquisition interface of computing machine software, computing machine is through real-time operation, and screen display goes out digital gravity flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010181943 CN101871798A (en) | 2010-05-25 | 2010-05-25 | System for accurately measuring power gravity flow at real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010181943 CN101871798A (en) | 2010-05-25 | 2010-05-25 | System for accurately measuring power gravity flow at real time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101871798A true CN101871798A (en) | 2010-10-27 |
Family
ID=42996796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010181943 Pending CN101871798A (en) | 2010-05-25 | 2010-05-25 | System for accurately measuring power gravity flow at real time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101871798A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2200754Y (en) * | 1994-10-08 | 1995-06-14 | 上海亚达仪表机械厂 | Improved cone cap locking air apparatus |
| EP0786648A1 (en) * | 1996-01-26 | 1997-07-30 | Satake Corporation | Flow meter and method of calibrating same |
| US5895865A (en) * | 1997-09-18 | 1999-04-20 | Ozawa; Kenneth Y. | Particulate material flow measuring device |
| CN101349582A (en) * | 2008-09-05 | 2009-01-21 | 孙家鼎 | Collecting device for on-line monitoring coarse dust separator outlet coal fine amount |
| CN201317591Y (en) * | 2008-09-16 | 2009-09-30 | 孙家鼎 | Flow rate monitoring type check valve device |
-
2010
- 2010-05-25 CN CN 201010181943 patent/CN101871798A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2200754Y (en) * | 1994-10-08 | 1995-06-14 | 上海亚达仪表机械厂 | Improved cone cap locking air apparatus |
| EP0786648A1 (en) * | 1996-01-26 | 1997-07-30 | Satake Corporation | Flow meter and method of calibrating same |
| US5895865A (en) * | 1997-09-18 | 1999-04-20 | Ozawa; Kenneth Y. | Particulate material flow measuring device |
| CN101349582A (en) * | 2008-09-05 | 2009-01-21 | 孙家鼎 | Collecting device for on-line monitoring coarse dust separator outlet coal fine amount |
| CN201317591Y (en) * | 2008-09-16 | 2009-09-30 | 孙家鼎 | Flow rate monitoring type check valve device |
Non-Patent Citations (1)
| Title |
|---|
| 《中国电力》 20090731 孙家鼎，任合社 在线实时监测锅炉给粉量的新方法 第72-74页 第42卷, 第7期 2 * |
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Open date: 20101027 |