CN102426046A - Closed type internal circulation detecting system of piston type standard volume tube - Google Patents
Closed type internal circulation detecting system of piston type standard volume tube Download PDFInfo
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- CN102426046A CN102426046A CN2011102495429A CN201110249542A CN102426046A CN 102426046 A CN102426046 A CN 102426046A CN 2011102495429 A CN2011102495429 A CN 2011102495429A CN 201110249542 A CN201110249542 A CN 201110249542A CN 102426046 A CN102426046 A CN 102426046A
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Abstract
The invention discloses a closed type internal circulation detecting system of a piston type standard volume tube. The closed type internal circulation detecting system comprises a volume tube measuring cylinder and a piston arranged in the volume tube measuring cylinder; the volume tube measuring cylinder is provided with a fluid inlet and a fluid outlet; and the fluid outlet is used for mounting a flowmeter to be detected. The closed type internal circulation detecting system further comprises a circulation pipeline, wherein the circulation pipeline is respectively communicated with the fluid inlet and the fluid outlet, and further, is extended out of the fluid inlet and the fluid outlet; a first switching valve and a second switching valve are respectively arranged at two end parts of the circulation pipeline; and a third switching valve is arranged on the circulation pipeline located between the fluid inlet and the fluid outlet. According to the closed type internal circulation detecting system of the piston type standard volume tube, no external circulation pumping system is needed in a detecting process, so that the detecting system can be further microminiaturized. Meanwhile, the flowmeter can be detected by adopting real liquid. In the process of carrying out real liquid detection by using the volume tube, the closed type internal circulation detecting system is a system in which the number of the real liquid used in various volume tubes is at least.
Description
Technical field
The present invention relates to flowmeter checkout equipment technical field, circulation verification system in particularly a kind of enclosed of piston type standard pipe prover.
Background technology
In trade in order to guarantee its justice; Will carry out regular calibrating to flowmeter proofreaies and correct; The piston type standard pipe prover be the most frequently used calibration reference device it have the measuring accuracy height, range ability is wide, volume is little, the place take few etc., and can online detection etc. plurality of advantages.
At present, the piston type standard pipe prover in the use all is to be serially connected on the transmitting-receiving oil flow process pipeline of oil depot to carry out on-line proving.If with the piston type standard pipe prover make vehicle-mounted removable or independently caliberating device flowmeter is carried out independent calibrating, the circulation system that just needs configuration one cover to form, otherwise can not use separately by pump, storage tank, valve and pipeline etc.Especially vehicle-mounted removable also must be mixed tank wagon at the line downstream end, makes the calibration operation of fluid transaction bring inconvenience.So until up to the present on the market the piston type standard pipe prover of all uses also do not have a kind of product that can carry out closed cycle calibrating.
Therefore, how under the condition of closed cycle, to examine and determine flowmeter, do not need pumping and tank system, become the technical matters that those skilled in the art need to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of interior circulation verification system of enclosed of piston type standard pipe prover,, do not need pumping and tank system can under the condition of closed cycle, examining and determine flowmeter.
For realizing above-mentioned purpose, the present invention provides following technical scheme:
Circulation verification system in a kind of enclosed of piston type standard pipe prover; Comprise volume pipe measurement cylinder barrel and the piston that is arranged in the said volume pipe measurement cylinder barrel; Said volume pipe is measured cylinder barrel and is had fluid intake and fluid egress point, and said fluid egress point is used to install flowmeter to be detected, also comprises:
Be connected with said fluid intake and said fluid egress point respectively; And stretch in the circulation line of said fluid intake and said fluid egress point outward; The both ends of said circulation line are provided with first switch valve and second switch valve respectively, and the pipeline of said circulation line between said fluid intake and said fluid egress point is provided with the 3rd switch valve.
Preferably, in the circulation verification system, said the 3rd switch valve is a solenoid valve in the enclosed of above-mentioned piston type standard pipe prover.
Preferably; In the enclosed of above-mentioned piston type standard pipe prover in the circulation verification system; Said piston comprises piston only and the center valve that is sealed and matched separably with the center pit of this piston only; Said center valve one side is connected with piston rod, and opposite side is connected with push rod, and said upper cover of piston rod is provided with the return springs that two ends link to each other with said center valve with said piston only respectively.
Preferably, in the circulation verification system, said piston rod links to each other with haulage gear in the enclosed of above-mentioned piston type standard pipe prover.
Preferably, in the circulation verification system, said haulage gear comprises in the enclosed of above-mentioned piston type standard pipe prover:
Driving arrangement;
Control the control device that said driving arrangement rotates opportunity;
With the leading screw that said driving arrangement links to each other, the end of said piston rod is provided with the screw thread coupling that cooperates with said threads of lead screw.
Preferably; In the enclosed of above-mentioned piston type standard pipe prover in the circulation verification system; The both sides that said volume pipe is measured cylinder barrel are respectively equipped with the first installation cylindrical shell and the second installation cylindrical shell; Said piston rod and said first is installed cylindrical shell and is slidingly matched, and said push rod and said second is installed cylindrical shell and is slidingly matched.
Preferably, in the enclosed of above-mentioned piston type standard pipe prover in the circulation verification system, said push rod move to said second install in the cylindrical shell extreme position the time, said control device is controlled said driving arrangement and is changed and turn to.
Preferably; In the enclosed of above-mentioned piston type standard pipe prover in the circulation verification system; Said piston rod is provided with the contactor control device with said control device communication; Said first install be provided with in the cylindrical shell cooperates with this contactor control device touch-control first near switch, during extreme position in said push rod moves to the said second installation cylindrical shell, said contactor control device is corresponding near the position of the switch with said first;
Said contactor control device its move to said first near the position of the switch when corresponding, send to said control device and to change the control signal that said driving arrangement turns to.
Preferably, in the enclosed of above-mentioned piston type standard pipe prover, in the circulation verification system, be provided with the snubber assembly of conflicting and cooperating in the said second installation cylindrical shell with said push rod.
Can find out from above-mentioned technical scheme; Circulation verification system in the enclosed of a kind of piston type standard pipe prover provided by the invention; Comprise volume pipe measurement cylinder barrel and the piston that is arranged in the said volume pipe measurement cylinder barrel; Said volume pipe is measured cylinder barrel and is had fluid intake and fluid egress point, and said fluid egress point is used to install flowmeter to be detected, also comprises: the circulation line that is connected with said fluid intake and said fluid egress point respectively; The both ends of said circulation line are provided with first switch valve and second switch valve respectively, and the pipeline of said circulation line between said fluid intake and said fluid egress point is provided with the 3rd switch valve.
Based on above-mentioned setting, the present invention is through closing first switch valve and second switch valve and opening the 3rd switch valve and can realize circulation calibrating in the enclosed of flowmeter.From the entrance of first switch valve standard pipe prover is full of calibrating liquid, closes first switch valve then, simultaneously, open the valve of pressure equilibrium flow container and drain the net volume pipe and measure the gas in the cylinder barrel through vent valve.
Open the 3rd switch valve,, promote piston, let the flow that detects liquid reach the flow that detects flow point with the translational speed of calculating through the haulage gear of piston type standard pipe prover.In the process of piston motion, the detection liquid of piston nose is back to piston rear end automatically through circulation line.When piston is pressed the distance arrival downstream of control program regulation, make haulage gear stop to draw perhaps and return the calibrating of carrying out repeatedly that repeats by instruction.Completion is once demarcated rear haulage mechanism and is oppositely spurred piston reset; Centre retaining valve in reseting procedure is because the relation of tractive is in opening; Liquid behind the piston adds to the piston front naturally, and piston can have been examined and determine again after getting back to starting point once more.Like this, in verification process, need not the pumping system of outer circulation, can make the further subminiaturization of verification system.Simultaneously, make flow instrument adopt real liquid to demarcate and become possibility.The present invention be one brand-new also be the minimum piston type standard pipe prover Measurement Calibration System of volume.If make again vehicle-mounted removable or independently caliberating device just can get rid of the circulation system of compositions such as pump, storage tank, unnecessary valve and pipeline and the tank wagon of following; The present invention also has its another distinguishing feature to be, carries out in the calibrating of real liquid with volume pipe, is a kind of of real liquid minimum number used in the various volume pipe.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of circulation verification system extending stroke in the enclosed of the piston type standard pipe prover that Fig. 1 provides for the embodiment of the invention;
The structural representation of circulation verification system piston return in the enclosed of the piston type standard pipe prover that Fig. 2 provides for the embodiment of the invention.
Embodiment
The invention discloses a kind of interior circulation verification system of enclosed of piston type standard pipe prover,, do not need pumping and tank system can under the condition of closed cycle, examining and determine flowmeter.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
See also Fig. 1 and Fig. 2, the structural representation of circulation verification system extending stroke in the enclosed of the piston type standard pipe prover that Fig. 1 provides for the embodiment of the invention; The structural representation of circulation verification system piston return in the enclosed of the piston type standard pipe prover that Fig. 2 provides for the embodiment of the invention.
Circulation verification system in the enclosed of the disclosed piston type standard pipe prover of the embodiment of the invention; Comprise volume pipe measurement cylinder barrel 3 and the piston 4 that is arranged in the volume pipe measurement cylinder barrel 3; Volume pipe is measured cylinder barrel 3 and is had fluid intake and fluid egress point, and fluid egress point is used to install flowmeter 1 to be detected.Of the present invention focus on also comprising respectively be connected with fluid intake and fluid egress point; And stretch in the circulation line of fluid intake and fluid egress point outward; The both ends of circulation line are provided with first switch valve 12 and second switch valve 14 respectively, and the pipeline of circulation line between fluid intake and fluid egress point is provided with the 3rd switch valve 13.The 3rd switch valve 13 can be preferably solenoid valve.
The present invention is through closing first switch valve 12 and second switch valve 14 and opening the 3rd switch valve 13 and can realize circulation calibrating in the enclosed of flowmeter 1.From the entrance of first switch valve 12 standard pipe prover is full of calibrating liquid, closes first switch valve 12 then, simultaneously, open the valve of pressure equilibrium flow container 7 and drain the net volume pipe and measure the gas in the cylinder barrel 3 through vent valve 2.
Open the 3rd switch valve 13,, promote piston 4, let the flow that detects liquid reach the flow that detects flow point with the translational speed of calculating through the haulage gear of piston type standard pipe prover.In the process of piston 4 motions, the detection liquid of piston 4 front ends is back to piston 4 rear ends automatically through circulation line.When piston 4 is pressed the distance arrival downstream of control program regulation, make haulage gear stop to draw perhaps and return the calibrating of carrying out repeatedly that repeats by instruction.Accomplish and once to demarcate rear haulage mechanism and oppositely spur piston 4 and reset; Centre retaining valve in reseting procedure is because the relation of tractive is in opening; Liquid behind the piston 4 adds to piston 4 fronts naturally, and piston 4 can have been examined and determine again after getting back to starting point once more.Like this, in verification process, need not the pumping system of outer circulation, can make the further subminiaturization of verification system.Simultaneously, make flowmeter 1 adopt real liquid to demarcate and become possibility.The present invention be one brand-new also be the minimum piston type standard pipe prover Measurement Calibration System of volume.If make again vehicle-mounted removable or independently caliberating device just can get rid of the circulation system of compositions such as pump, storage tank, unnecessary valve and pipeline and the tank wagon of following; The present invention also has its another distinguishing feature to be, carries out in the calibrating of real liquid with volume pipe, is a kind of of real liquid minimum number used in the various volume pipe.
Piston 4 is arranged at volume pipe and measures in the cylinder barrel 3; Its center valve 5 is formed piston 4 jointly with its piston only, and center valve 5 is with after piston only separates, and fluid can be by passing through between center valve 5 and the piston only; After center valve 5 and the piston only seal combination, then has the effect of piston.
One end of center valve 5 is connected with piston rod 17; The other end is connected with push rod 18; Piston rod 17 is arranged with the return springs that two ends link to each other with center valve 5 with the piston only of piston 4 respectively; Return springs can be spring and is used for center valve 5 is held out against at piston only, to form a complete piston.Push rod 18 is used for when piston 4 moves to an extreme position, contacts with other parts, and makes center valve 5 break away from piston only.Piston rod 17 links to each other with haulage gear through the screw thread coupling 9 of its end.Haulage gear comprises driving arrangement 10, leading screw 6 and control device.
Driving arrangement 10 can comprise servomotor and reducing gear, through reducing gear the servomotor output speed is reduced.Control device can be computing machine, is used for the rotation opportunity of controlling and driving equipment 10, and leading screw 6 links to each other with driving arrangement 10, so that the deceleration through reducing gear of the power of servomotor output is passed to leading screw 6, makes leading screw 6 rotate.
Screw thread coupling 9 and leading screw 6 threaded engagement, the rotation through leading screw 6 can drive screw thread coupling 9 and move axially along this leading screw 6, moves with piston rod 17 and the piston 4 that links to each other with this piston rod 17.
The both sides that volume pipe is measured cylinder barrel 3 are respectively equipped with the first installation cylindrical shell and the second installation cylindrical shell, and piston rod 17 and first is installed cylindrical shell and is slidingly matched, and push rod 18 and second is installed cylindrical shell and is slidingly matched.Push rod 18 move to second install in the cylindrical shell extreme position the time, push rod 18 backs down center valve 5, this timed unit controlling and driving equipment 10 changes and turns to, and promptly drives leading screw 6 and rotates round about, so that piston 4 is retracted.
Piston rod 17 is provided with the contactor control device 11 with the control device communication; First install be provided with in the cylindrical shell cooperate with this contactor control device 11 touch-controls first near switch; Push rod 18 move to second install in the cylindrical shell extreme position the time, contactor control device 11 is corresponding near the position of the switch with first; Contactor control device 11 its move with first near the position of the switch when corresponding, send to control device and to change driving arrangement 10 and change the control signal that turns to, driving arrangement 10 changes it and turns to after receiving this signal.
Be provided with the snubber assembly 15 of conflicting and cooperating with push rod 18 in the second installation cylindrical shell, this snubber assembly 15 can specifically comprise buffer board that is arranged in the second installation cylindrical shell and the cushion part that links to each other with the diapire of the buffer board and the second installation cylindrical shell.Piston 4 moves to snubber assembly 15 directions under the effect of fluid; After moving to push rod 18 and snubber assembly 15 contact; Push rod 18 is backed down center valve 5 by the effect of snubber assembly 15; Laid down the thrust of fluid, piston 4 stops to move thereupon, and the fluid of continuous flow continues successfully to flow through from the centre of piston 4.
In sum; Utilizing the computer-controlled servo motor drive system not only can draw the piston return as conventional piston type liquid standard pipe prover resets and accomplishes conventional measurement calibration operation; And can also initiatively utilize piston to promote liquid and not need outside pumping system, realize the closed cycle calibrating.This be one brand-new also be the minimum piston type standard pipe prover Measurement Calibration System of volume.If make again vehicle-mounted removable or independently caliberating device just can get rid of the circulation system of compositions such as pump, storage tank, unnecessary valve and pipeline and the tank wagon of following; Also having its another distinguishing feature to be, carry out in the real liquid calibrating with volume pipe, is a kind of of real liquid minimum number used in the various volume pipe.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (9)
1. circulation verification system in the enclosed of a piston type standard pipe prover; Comprise volume pipe measurement cylinder barrel (3) and be arranged at said volume pipe and measure the piston (4) in the cylinder barrel (3); Said volume pipe is measured cylinder barrel (3) and is had fluid intake and fluid egress point; Said fluid egress point is used to install flowmeter to be detected (1), it is characterized in that, also comprises:
Be connected with said fluid intake and said fluid egress point respectively; And stretch in the circulation line of said fluid intake and said fluid egress point outward; The both ends of said circulation line are provided with first switch valve (12) and second switch valve (14) respectively, and the pipeline of said circulation line between said fluid intake and said fluid egress point is provided with the 3rd switch valve (13).
2. circulation verification system in the enclosed of piston type standard pipe prover as claimed in claim 1 is characterized in that said the 3rd switch valve (13) is a solenoid valve.
3. circulation verification system in the enclosed of piston type standard pipe prover as claimed in claim 2; It is characterized in that; Said piston (4) comprises piston only and the center valve (5) that is sealed and matched separably with the center pit of this piston only; Said center valve (5) one sides are connected with piston rod (17), and opposite side is connected with push rod (18), are arranged with the return springs that two ends link to each other with said center valve (5) with said piston only respectively on the said piston rod (17).
4. circulation verification system in the enclosed of piston type standard pipe prover as claimed in claim 3 is characterized in that said piston rod (17) links to each other with haulage gear.
5. circulation verification system in the enclosed of piston type standard pipe prover as claimed in claim 4 is characterized in that said haulage gear comprises:
Driving arrangement (10);
Control the control device that said driving arrangement (10) rotates opportunity;
The leading screw (6) that links to each other with said driving arrangement (10), the end of said piston rod (17) are provided with the screw thread coupling (9) with said leading screw (6) threaded engagement.
6. circulation verification system in the enclosed of piston type standard pipe prover as claimed in claim 5; It is characterized in that; The both sides that said volume pipe is measured cylinder barrel (3) are respectively equipped with the first installation cylindrical shell and the second installation cylindrical shell; Said piston rod (17) and said first is installed cylindrical shell and is slidingly matched, and said push rod (18) and said second is installed cylindrical shell and is slidingly matched.
7. circulation verification system in the enclosed of piston type standard pipe prover as claimed in claim 6; It is characterized in that; Said push rod (18) move to said second install in the cylindrical shell extreme position the time, said control device is controlled said driving arrangement (10) change and is turned to.
8. circulation verification system in the enclosed of piston type standard pipe prover as claimed in claim 7; It is characterized in that; Said piston rod (17) is provided with the contactor control device (11) with said control device communication; Said first install be provided with in the cylindrical shell cooperates with this contactor control device (11) touch-control first near switch, during extreme position in said push rod (18) moves to the said second installation cylindrical shell, said contactor control device (11) is corresponding near the position of the switch with said first;
Said contactor control device (11) its move to said first near the position of the switch when corresponding, send to said control device and to change the control signal that said driving arrangement (10) turns to.
9. circulation verification system in the enclosed of piston type standard pipe prover as claimed in claim 8 is characterized in that, is provided with the snubber assembly (15) of conflicting and cooperating with said push rod (18) in the said second installation cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110249542 CN102426046B (en) | 2011-08-26 | 2011-08-26 | Closed type internal circulation detecting system of piston type standard volume tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110249542 CN102426046B (en) | 2011-08-26 | 2011-08-26 | Closed type internal circulation detecting system of piston type standard volume tube |
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| CN102426046A true CN102426046A (en) | 2012-04-25 |
| CN102426046B CN102426046B (en) | 2013-07-24 |
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| CN 201110249542 Active CN102426046B (en) | 2011-08-26 | 2011-08-26 | Closed type internal circulation detecting system of piston type standard volume tube |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033240A (en) * | 2012-11-16 | 2013-04-10 | 天津新科成套仪表有限公司 | Exhaust and blowdown assembly of piston type standard volume pipe |
| CN104330134A (en) * | 2014-10-09 | 2015-02-04 | 南京航空航天大学 | Dynamic pipeline flow calibration system |
| CN106017620A (en) * | 2016-07-30 | 2016-10-12 | 温州恒海科技有限公司 | Calibration device with intelligent piston volume pipe |
| CN106338322A (en) * | 2016-08-31 | 2017-01-18 | 金卡高科技股份有限公司 | System and method for detecting active two-way work gas solid flow |
| CN114577312A (en) * | 2022-05-06 | 2022-06-03 | 南京深度系统工程有限公司 | Loop detection device containing multistage standards and online calibration method of standard |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033240A (en) * | 2012-11-16 | 2013-04-10 | 天津新科成套仪表有限公司 | Exhaust and blowdown assembly of piston type standard volume pipe |
| CN104330134A (en) * | 2014-10-09 | 2015-02-04 | 南京航空航天大学 | Dynamic pipeline flow calibration system |
| CN104330134B (en) * | 2014-10-09 | 2017-12-08 | 南京航空航天大学 | A kind of pipeline flow dynamic calibration system |
| CN106017620A (en) * | 2016-07-30 | 2016-10-12 | 温州恒海科技有限公司 | Calibration device with intelligent piston volume pipe |
| CN106338322A (en) * | 2016-08-31 | 2017-01-18 | 金卡高科技股份有限公司 | System and method for detecting active two-way work gas solid flow |
| CN106338322B (en) * | 2016-08-31 | 2019-05-21 | 金卡智能集团股份有限公司 | A kind of the gas reality stream detection system and method for active two-way operation |
| CN114577312A (en) * | 2022-05-06 | 2022-06-03 | 南京深度系统工程有限公司 | Loop detection device containing multistage standards and online calibration method of standard |
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| CN102426046B (en) | 2013-07-24 |
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