CN201188025Y - Rotary type reversing device for calibrating apparatus of quality flowmeter - Google Patents
Rotary type reversing device for calibrating apparatus of quality flowmeter Download PDFInfo
- Publication number
- CN201188025Y CN201188025Y CNU2008201014232U CN200820101423U CN201188025Y CN 201188025 Y CN201188025 Y CN 201188025Y CN U2008201014232 U CNU2008201014232 U CN U2008201014232U CN 200820101423 U CN200820101423 U CN 200820101423U CN 201188025 Y CN201188025 Y CN 201188025Y
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- pipe
- reversing arrangement
- swivelling pipe
- driving shaft
- base plate
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Abstract
The utility model relates to a unidirectional rotational-type flow commutating device which comprises a pant-type dividing pipe and a commutating device, wherein, the lower port of the pant-type dividing pipe is respectively provided with a filler pipe and a return pipe which are communicated with a communicated weighting pot and a recovery pond. The unidirectional rotational-type flow commutating device is characterized in that the pant-type dividing pipe 1 is internally provided with a longitudinal clapboard separating the filler pipe from the return pipe; the upper end of the dividing pipe is fixedly connected with a tubular shell; the upper end of the shell is connected with a current source pipe of an elbow; the commutating device comprises a drive arranged at the upper part of the elbow as well as a driving shaft and a rotating pipe coaxially arranged together with the shell; the rotating pipe is rotationally sleeved between the longitudinal clapboard and the current source pipe through a bearing bracket, and the lower port of the rotating pipe is provided with a soleplate with a filler opening for switching liquid flows; the drive is connected with the rotating pipe through the driving shaft in a transmission way. The unidirectional rotational-type flow commutating device utilizes the drive to drive the rotating pipe which rotates unidirectionally to switch the liquid flows, produces low noise, has simple structure and stable performance, and greatly improves the inspection accuracy.
Description
Technical field
The utility model relates to the mass flowmeter calibrating installation, specifically is the rotary flow reversing arrangement that the mass flowmeter calibrating installation is used.
Background technology
The calibrating installation of mass flowmeter is made up of stream origin system, weighing system, weighing capacitance device, flow reversing arrangement, detected major equipments such as mass flowmeter, and its calibrating principle is: before the calibrating tested flowmeter is installed on the corresponding platform position.Under the situation of ne-leakage, open inlet valve, outlet valve, then turn on pump.Make the liquid degassing and filtration device of flowing through, tested flowmeter, with reference to flowmeter, reversing arrangement flows into bypass, flows in the recovery pond, enters calibrating after standard set-up is in the stable circulation state.On the weighing display device, be provided with and give title point, counting assembly zero clearing.Start timing device, make the flow reversing arrangement will flow into the rapidly tangential weighing jar of fluid of bypass by circuit control.The flow of synchronized stroke switch control counting assembly and the tested flowmeter process of weighing display device opening entry; When finishing, calibrating commutates by circuit control reversing arrangement, with the rapidly tangential bypass of fluid by timing device.Synchronized stroke switch control weighing display device and counting assembly stop counting.The weighing value of weighing display device and the pulse value of counting assembly compare, and just can calculate the accuracy of tested flowmeter.By timing device control electric installation switch end ball valve action is opened, put the liquid of clean the inside, close ball valve at the bottom of the discharge opeing again, for calibrating next time is got ready.
At present, the flow reversing arrangement that the mass flowmeter calibrating installation is used adopts two-way mechanical motion, and reversing arrangement is subjected to the impulsive force of liquid stream to cause huge noise, error big greatly, and complex structure, volume are big.In the later stage nineties, the U.S., Germany, Japan have developed the one-way movement reversing arrangement in succession, and the U.S. and Germany are unidirectional rectilinear motion reversing arrangements; Japan is the reversing arrangement that rotatablely moves.All beneficial to the performance that improves the flow standard device.But still volume is big for the rectilinear motion reversing arrangement of the U.S. and Germany, and noise height when fast that moves is especially outstanding to large-scale flow standard device.The rotary reversing arrangement of Japan only uses on small-bore device, and the also complicated volume of structure is also huge.Simultaneously similar, domestic also someone has developed rotary oscillation formula reversing arrangement, is radially to rotate; Volume-diminished, but remain bidirectional swinging, and bidirectional swinging does not have the one-way movement performance good.One-way movement reversing arrangement standard set-up error that reversing arrangement is caused is very little even ignore in theory.The error of the standard set-up that reversing arrangement causes but two-way linear motion reversing arrangement and bidirectional swinging reversing arrangement are not accomplished to ignore.
Summary of the invention
In order to overcome existing mass flowmeter calibrating installation with flow reversing arrangement complex structure, operating noise is big and error is big deficiency, the rotary flow reversing arrangement that the utility model provides a kind of mass flowmeter calibrating installation to use, simple in structure, the stable performance of this rotary flow reversing arrangement has improved the detection degree of accuracy and has reduced operating noise.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of unidirectional rotary flow reversing arrangement comprises that lower port is arranged with connection weighing jar, the ascending pipe of recovery pond, the pants type isocon and the reversing arrangement of recirculatory pipe; It is characterized in that: the midfeather that separates ascending pipe and recirculatory pipe in the pants type isocon isocon 1; The affixed outer tubular envelope in the upper end of isocon, shell body upper end connecting bend stream source capsule; Described reversing arrangement comprise the driver that is installed on bend pipe top and with driving shaft, the swivelling pipe of the coaxial layout of shell body; Swivelling pipe is set between midfeather and the stream source capsule rotationally by bearing supporting frame, and the swivelling pipe lower port is provided with the base plate that band switches liquid streamer head piece; Driver is in transmission connection by driving shaft and swivelling pipe.
Principle of work of the present utility model: before the calibrating tested flowmeter is installed on the corresponding pipeline, rotate the orifices that makes on the swivelling pipe base plate by the driver drives swivelling pipe and be communicated with recirculatory pipe, open liquid stream beginning fluid injection, flow through isocon, recirculatory pipe of liquid flows into recovery pond; After liquid stream reaches predetermined stable flow velocity, start timing device, start the unidirectional Rotate 180 of driver drives swivelling pipe ° by circuit control, the orifices on the swivelling pipe base plate is communicated with, with the rapid tangentially weighing jar of liquid stream with the ascending pipe of pants isocon lower end.The flow of synchronized stroke switch control counting assembly and the tested flowmeter process of weighing display device opening entry; When calibrating finishes by timing device by the commutation that ° resets of the unidirectional once more Rotate 180 of circuit control swivelling pipe, with the rapidly tangential recirculatory pipe of fluid, examined and determine mass flowmeter and stop simultaneously measuring.Compare according to the weighing value of weighing jar weighing display device and the metering numerical value of tested constant flow meter, just can calculate the accuracy of tested flowmeter.
Compare than existing reversing arrangement, the reversing arrangement that the utility model provides has the following advantages: 1) performance is good, and error is little, and the commutator uncertainty is less than 1 * 10
-5Even ignore; 2) noise is little, and is littler 30～50 decibels than other commutator noises, and the commutator motion and sound is less than the sluicing sound of device; 3) volume is little, and it is little to take up room; 4) driving force is little; 5) be fit to various bore pipelines and use, the reversing arrangement of the pipeline of various sizes wherein from DN20mm to DN3000mm; Cost is not more than existing reversing arrangement.The little noise pollution that improves environment greatly of noise has the environmental protection effect.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is an one-piece construction cut-open view of the present utility model.
Fig. 2 is the synoptic diagram behind the swivelling pipe Rotate 180 ° among Fig. 1.
Embodiment
With reference to Fig. 1, Fig. 2.A kind of unidirectional rotary flow reversing arrangement comprises pants type isocon 1, the shell body 2 and the reversing arrangement that axially connect.
With reference to Fig. 1, Fig. 2.Pants type isocon 1 lower end is arranged with and is communicated with weighing jar, the ascending pipe 11 of recovery pond, recirculatory pipe 12, and isocon 1 middle and lower part separates ascending pipe 11 and recirculatory pipe 12 by midfeather 13.The lower end of shell body 2 is fixedly connected with isocon 1 upper end liquid sealing, the upper end is connected with elbow stream source capsule 3, and stream source capsule 3 is communicated with external streams.
With reference to Fig. 1, Fig. 2.Reversing arrangement: it comprises the reducing motor 4 that is installed on elbow stream source capsule 3 tops and vertically driving shaft 5, swivelling pipe 6; Vertical driving shaft 5, swivelling pipe 6 and shell body 2 coaxial layouts.Swivelling pipe 6 is the expanding prick tubular construction, installs transmission bracket 61, base plate 62 in its upper and lower port respectively.The upper end of driving shaft 5 and reducing motor 4 are in transmission connection, and its lower end is passed elbow stream source capsule 3 tube walls and is in transmission connection with swivelling pipe 6 by transmission bracket 61, base plate 62.4 of swivelling pipes are set between elbow stream source capsule 3, the midfeather 13 rotationally by the bearing supporting frame 7 that is installed on shell body 2 inwalls, and its upper and lower end is pressed close to mutually with elbow stream source capsule 3 liquid outlets, midfeather 13 respectively.See Fig. 3, base plate 61 1 sides of swivelling pipe 6 offer fan-shaped orifices 621, and for preventing the infringement of high velocity liquid stream to base plate, base plate 61 end faces are equiped with stiffening plate 622, to improve the structural strength of base plate.
With reference to Fig. 1, when flowmeter was examined and determine, the fan-shaped beam 621 on the swivelling pipe base plate was positioned at a side of ascending pipe 11, and liquid stream injects the weighing jar by fan-shaped orifices through ascending pipe 11.With reference to Fig. 2, after meter proof finished, reducing motor 4 was by behind driving shaft 5 driven rotary pipes 6 Rotate 180s °, and fan-shaped orifices 621 is left ascending pipe 12 fully, and is positioned at recirculatory pipe 12 1 sides, liquid stream is switched to recirculatory pipe 12 and was back to and reclaimed the pond.
The above only is the new preferred embodiment of this practicality, so can not limit its concrete scope of implementing with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should belong to the scope that this patent is contained.
Claims (4)
1. a unidirectional rotary flow reversing arrangement comprises that lower port is arranged with connection weighing jar, the ascending pipe of recovery pond, the pants type isocon and the reversing arrangement of recirculatory pipe; It is characterized in that: the midfeather that separates ascending pipe and recirculatory pipe in the pants type isocon isocon 1; The affixed outer tubular envelope in the upper end of isocon, shell body upper end connecting bend stream source capsule; Described reversing arrangement comprise the driver that is installed on bend pipe top and with driving shaft, the swivelling pipe of the coaxial layout of shell body; Swivelling pipe is set between midfeather and the stream source capsule rotationally by bearing supporting frame, and the swivelling pipe lower port is provided with the base plate that band switches liquid streamer head piece; Driver is in transmission connection by driving shaft and swivelling pipe.
2. flow reversing arrangement according to claim 1 is characterized in that: described midfeather end face is pressed close to mutually with the base plate lower surface of swivelling pipe.
3. flow reversing arrangement according to claim 1 is characterized in that: be equiped with stiffening plate on the base plate of described swivelling pipe.
4. flow reversing arrangement according to claim 1 is characterized in that: described driver is a reducing motor; Install transmission bracket in the upper port of swivelling pipe; The upper end and the reducing motor of driving shaft are in transmission connection, and its lower end is passed elbow stream source capsule tube wall and is in transmission connection by transmission bracket, base plate and swivelling pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201014232U CN201188025Y (en) | 2008-02-13 | 2008-02-13 | Rotary type reversing device for calibrating apparatus of quality flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201014232U CN201188025Y (en) | 2008-02-13 | 2008-02-13 | Rotary type reversing device for calibrating apparatus of quality flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201188025Y true CN201188025Y (en) | 2009-01-28 |
Family
ID=40311050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201014232U Expired - Fee Related CN201188025Y (en) | 2008-02-13 | 2008-02-13 | Rotary type reversing device for calibrating apparatus of quality flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201188025Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331283A (en) * | 2011-08-08 | 2012-01-25 | 天津大学 | Swing splitter plate type commutator driven by stepping motor |
| CN103411653A (en) * | 2013-08-30 | 2013-11-27 | 福建恒劲科博测控技术有限公司 | Calibration and detection device of liquid flow meter |
| CN106568491A (en) * | 2016-09-19 | 2017-04-19 | 北京航天动力研究所 | Anti-spilling flow rate standard device and calibration method applicable to large flow rate liquid entrance |
-
2008
- 2008-02-13 CN CNU2008201014232U patent/CN201188025Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331283A (en) * | 2011-08-08 | 2012-01-25 | 天津大学 | Swing splitter plate type commutator driven by stepping motor |
| CN103411653A (en) * | 2013-08-30 | 2013-11-27 | 福建恒劲科博测控技术有限公司 | Calibration and detection device of liquid flow meter |
| CN106568491A (en) * | 2016-09-19 | 2017-04-19 | 北京航天动力研究所 | Anti-spilling flow rate standard device and calibration method applicable to large flow rate liquid entrance |
| CN106568491B (en) * | 2016-09-19 | 2024-03-19 | 北京航天动力研究所 | Anti-overflow flow standard device for high-flow liquid inlet and verification method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 Termination date: 20140213 |