CN102707089A - Device for measuring movement acceleration of valve disk of pump valve of reciprocation pump - Google Patents
Device for measuring movement acceleration of valve disk of pump valve of reciprocation pump Download PDFInfo
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- CN102707089A CN102707089A CN2012102058953A CN201210205895A CN102707089A CN 102707089 A CN102707089 A CN 102707089A CN 2012102058953 A CN2012102058953 A CN 2012102058953A CN 201210205895 A CN201210205895 A CN 201210205895A CN 102707089 A CN102707089 A CN 102707089A
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Abstract
The device provided by the invention is mainly used for measuring an acceleration of a valve disk in a movement process of a reciprocating pump valve. According to the invention, an acceleration sensor 11 installed on the valve disk of the pump valve is used for measuring an acceleration signal in a reciprocating process of the valve disk, and a signal wire 10 of the acceleration sensor 11 is led out from the inside of the pump valve; signal wire sealing devices (5 and 6) capable of enabling the signal wire 10 of the acceleration sensor to pass through and ensuring that the pump does not leak are arranged on a reciprocating pump cylinder cover 8; the acceleration signal of the pump valve in a movement process is measured by the acceleration sensor 11 installed on the valve disk, is amplified by a charge amplifier 14, is transmitted to a computer and a valve disk movement testing and analyzing system 16 through a data acquiring box 15, and is analyzed and processed by applying a self-developed pump valve disk movement testing and analyzing system to obtain an actual acceleration movement rule of the valve disk of the reciprocating pump valve, and therefore therefore a better experiment technical means and data support are provided for researching the movement rule and the damage mechanism of the valve disk of the reciprocating pump valve.
Description
Technical field
The present invention provides novel, small-sized, practical being used to of a cover to carry out the device that reciprocating-pump valve valve disc acceleration of motion is measured; Device can record the acceleration of motion of reciprocating-pump valve valve disc; Can study the actual movement rule and the impulsive force situation of valve disc thus; Verify that various pump valves do not have the theory of impact, research pump valve micromechanism of damage.Device is furnished with watertight acceleration transducer, is furnished with on the valve gap to let sensor signal lines pass through the packoff that guarantees that pump does not leak, and is equipped with the pump valve MAS of independently developed special use.
Background technology
Reciprocating-pump valve (comprising valve disc and valve seat) carries out to-and-fro movement complicated, that have certain rule in high-pressure fluid, pump valve receives the combined action that a series of complicated power are.There are the pretightning force, high-pressure fluid of gravity, the spring of pump valve valve disc itself pressure and the erosional force to pump valve, the mechanical friction resistance between the mechanicals efforts between valve disc and the valve seat, guide rod and the orienting sleeve and frictional resistance of fluid or the like in these complicated power system.Because the characteristics of motion of valve disc is directly connected to the design effort life-span of pump valve; Therefore paid close attention to by people always; Occurred various about valve disc motion and stressed theoretical research and analog simulation analysis; But the device that successful test reciprocating-pump valve valve disc actual motion acceleration up to the present, still do not occur.
In order to solve the test problem of valve disc kinematic parameter; In the laboratory acceleration of reciprocating pump valve disc motion under different operating modes is tested; Valve disc MAS through independent development carries out Treatment Analysis to the acceleration signal that records; And then the characteristics of motion of research valve disc; Its analysis result and data can not impacted theoretical checking and foundation are provided and accumulate experience for the design theory of reciprocating-pump valve and pump valve have, for research reciprocating-pump valve micromechanism of damage provides foundation, and the background and the meaning of Here it is reciprocating-pump valve valve disc acceleration of motion proving installation provided by the present invention.
At present the characteristics of motion of reciprocating-pump valve valve disc and do not have impact aspects such as theory research mostly based on theoretical analysis on the various hypothesis basis and software simulation emulation, lack verification experimental verification, have difference with actual state.Through the valve disc accelerating testing device test that can make an experiment to the actual motion acceleration of reciprocating pump valve disc of invention, thereby obtain true and reliable valve disc acceleration of motion rule, can improve and propose correct pump valve design theory and method on this basis.
Summary of the invention
The accelerating testing device that the purpose of this invention is to provide the new reciprocating-pump valve valve disc of a cover; Simple in structure, small-sized, convenient application characteristics that this device has; Can carry out the test of the actual motion acceleration of pump valve valve disc, can analyze the pump valve stressing conditions again in view of the above and its micromechanism of damage is furtherd investigate.
The present invention be in the laboratory to the characteristics of motion research of reciprocating-pump valve valve disc and custom-designed; The determinator that provided of invention utilize the acceleration transducer test pump valve valve disc of resistance to compression waterproof open, close and motion process in the acceleration signal situation of change; The valve disc motor message is passed to outside the pumping cylinder pump valve valve disc MAS Treatment Analysis gained signal of utilization independent development through the acceleration transducer signals line in pumping cylinder.
The distinguishing feature that device is different from other determinator is:
(1) present test about pump valve valve disc kinematic parameter basically all is employed in the method acquisition of the outer sensor installation of reciprocating pump, does not directly obtain from valve disc.The present invention is directly installed on sensor on the inner valve disc of reciprocating pump, can measure the actual motion acceleration of pump valve valve disc exactly;
(2) the acceleration transducer waterproof of choosing, anti-high pressure, light weight can not added excessive impost to valve disc, do not influence the proper motion of valve disc;
(3) pumping cylinder covers to be furnished with and can let sensor signal lines pass through and guarantee the packoff that pump does not leak, and is equipped with independently developed pump valve valve disc MAS that sensor signal is carried out analyzing and processing timely;
(4) software section is characterised in that the I/O interfacing equipment that utilizes NI company to provide, the software systems of using the independently developed cover of Labwindows/CVI language that pump valve valve disc acceleration signal is tested and analyzed.The acceleration of motion of valve disc is recorded by acceleration transducer in the test; And through the charge amplifier amplification; Through data acquisition device sensor signal being imported computing machine is again diagnosed by the software systems Treatment Analysis; Obtain the acceleration movement rule of valve disc under the different working conditions, and then carry out the research of analysis of valve disc stressing conditions and micromechanism of damage in view of the above
Description of drawings
Fig. 1 reciprocating-pump valve acceleration sensor apparatus proposed by the invention is installed sketch;
Fig. 2 reciprocating-pump valve acceleration transducer signals line proposed by the invention is drawn the packoff cut-open view;
The reciprocating-pump valve acceleration movement signal acquiring system sketch that Fig. 3 is proposed by the invention;
Embodiment
To combine accompanying drawing further this covering device to be described below.
1. assay device structures
Visible by Fig. 1; Determinator is by valve seat 1, valve disc 2, spring 3, top guide bar 4, signal wire packoff double-screw bolt 5, signal wire packoff nut 6, cylinder bolt 7, cylinder cap 8, pump head 9, acceleration transducer signals line 10; Acceleration transducer 11 parts such as grade constitute, the corresponding cone match of the work conical surface of valve disc 2 and valve seat 1 (when valve cuts out) wherein, and the valve arrangement of this pattern is simple; The effective area of passage of valve seat is big, and the hydraulic loss of the valve seat of flowing through is also smaller; Sensor signal lines 10 is drawn from pump head 9 inner chambers through cylinder cap signal wire packoff; The cylinder bolt 7 that passes through of cylinder cap 8 and pump head 9 connects fixing; Valve disc top guide bar 4 slides up and down in the inner hole surface of spring 3; The acceleration transducer 11 of resistance to compression water-proof type is installed on the valve disc 2, and valve disc pumps in pump head 8 inner chambers, doing under the fluid effect.
2. the acceleration transducer signals line is drawn packoff
Fig. 2 is the cut-open view that the acceleration transducer signals line is drawn packoff, and is visible by Fig. 2, and the signal wire packoff is by double-screw bolt 5, nut 6, and internal heat miniature body (TPE) 12 is formed with O RunddichtringO 13.The signal wire packoff is a kind of special cable sealed joint, joint degree of protection IP68.Internal heat miniature body (TPE) is a kind of high resiliency with rubber, high strength, high resilience, but the material that has the characteristic of injection moulding processing again.The sealing of signal wire 10 is mainly fixed through the packoff upper end nut 6 and the compression of tightening of inner thermoplastic elastomer (TPE) 12; The sealing of cylinder cap 8 and signal wire packoff mainly through double-screw bolt 5 be injection-moulded in the mode that the O RunddichtringO 13 on the double-screw bolt combines, the signal wire packoff is fixed on the cylinder cap 8.
3. data acquisition system (DAS)
Visible by Fig. 3; The data acquisition system (DAS) of device is by acceleration transducer 11; Charge amplifier 14, data acquisition device 15, compositions such as computing machine and valve disc MAS 16; The installation site that has shown pump valve valve disc acceleration transducer among the figure, and with the connection path of charge amplifier, data acquisition device and Computer Analysis disposal system.Acceleration transducer 11 is used for measuring the motor message of pump valve valve disc motion process; Acceleration transducer signals amplifies through charge amplifier 14; The data collecting card of measuring acceleration signal is housed in the data acquisition device 15; After the data acquisition card signal imported computing machine into through the data acquisition device data line, 16 pairs of acceleration signals of pump valve valve disc MAS of computing machine utilization independent development carried out Treatment Analysis.
4. principle of work
After degree of will speed up sensor and measurement instrument are installed in the assigned address of reciprocating pump, be under the condition of water, test reciprocating pump at different flow, pressure, the Changing Pattern of pump valve valve disc acceleration under the rotating speed operating mode at actuating medium.Acceleration signal in the pump valve motion process is through after being installed in acceleration transducer 11 on the valve disc and recording and import charge amplifier 14 and amplify; Import computing machine and valve disc exercise test analytic system 16 into through data acquisition device 15; Use independently developed pump valve valve disc exercise test analytic system that signal is carried out analyzing and processing; Can draw the acceleration movement rule of real reciprocating-pump valve valve disc; And then for actual loading situation and the micromechanism of damage of research reciprocating-pump valve, for obtaining correct pump valve fault diagnosis conclusion and Preventing Countermeasures, and foundation is provided for the design theory of furtheing investigate pump valve.
Claims (3)
1. a device of measuring reciprocating-pump valve valve disc acceleration of motion is by reciprocating pump valve seat 1, valve disc 2, spring 3, valve disc top guide bar 4, cylinder bolt 7, cylinder cap 8, pump head 9, acceleration transducer signals line 10, waterproof is withstand voltage acceleration transducer 11, signal wire packoff (containing double-screw bolt 5, nut 6, internal heat miniature body (TPE) 12 and O RunddichtringO 13), charge amplifier 14, and data acquisition device 15 and computing machine and valve disc MAS 16 constitute.
2. according to right 1 described determinator; It is characterized in that: waterproof is withstand voltage, and acceleration transducer 11 is directly installed on the reciprocating-pump valve valve disc 2; Be furnished with on the reciprocating pump cylinder cap 8 and can let the signal wire packoff of acceleration transducer signals line 10, can measure valve disc acceleration of motion data in real time in the reciprocating pump pump head inside that 2MPa hydraulic pressure is arranged through guaranteeing that simultaneously liquid does not leak in the pump.
3. according to right 1 or 2 described determinators; The signal that degree of will speed up sensor 11 records amplifies through charge amplifier 14; Send into data acquisition device 15; The pump valve valve disc MAS of sending into again by independent development 16 carries out Treatment Analysis, draws the acceleration change rule of pump valve valve disc under actual condition, and then is that force analysis and the designing and calculating of studying pump valve provides foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102058953A CN102707089A (en) | 2012-06-21 | 2012-06-21 | Device for measuring movement acceleration of valve disk of pump valve of reciprocation pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102058953A CN102707089A (en) | 2012-06-21 | 2012-06-21 | Device for measuring movement acceleration of valve disk of pump valve of reciprocation pump |
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| CN102707089A true CN102707089A (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102058953A Pending CN102707089A (en) | 2012-06-21 | 2012-06-21 | Device for measuring movement acceleration of valve disk of pump valve of reciprocation pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472258A (en) * | 2013-10-11 | 2013-12-25 | 常州大学 | Device capable of simultaneously measuring motion acceleration of valve disc of reciprocating and impact force of pump valve |
| CN113819291A (en) * | 2021-11-25 | 2021-12-21 | 四川宏华电气有限责任公司 | Reciprocating pump knocking-free valve cover device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101413835A (en) * | 2008-11-26 | 2009-04-22 | 上海神开石油化工装备股份有限公司 | Apparatus for testing load and acceleration |
| CN102455363A (en) * | 2011-05-04 | 2012-05-16 | 贵州航天凯山石油仪器有限公司 | Method and device for damping vibration of sucker rod acceleration measuring circuit board |
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2012
- 2012-06-21 CN CN2012102058953A patent/CN102707089A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413835A (en) * | 2008-11-26 | 2009-04-22 | 上海神开石油化工装备股份有限公司 | Apparatus for testing load and acceleration |
| CN102455363A (en) * | 2011-05-04 | 2012-05-16 | 贵州航天凯山石油仪器有限公司 | Method and device for damping vibration of sucker rod acceleration measuring circuit board |
Non-Patent Citations (3)
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| 乔世林: "提高隔膜泵锥阀使用寿命方法的研究", 《有色设备》 * |
| 刘敬武等: "往复泵阀运动规律的测试", 《兰州理工大学学报》 * |
| 杨其俊等: "钻井泵泵阀状态的监测与故障诊断", 《石油大学学报(自然科学版)》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472258A (en) * | 2013-10-11 | 2013-12-25 | 常州大学 | Device capable of simultaneously measuring motion acceleration of valve disc of reciprocating and impact force of pump valve |
| CN103472258B (en) * | 2013-10-11 | 2016-06-15 | 常州大学 | A kind of device simultaneously measuring reciprocating pump valve disc acceleration of motion and impact force of pump |
| CN113819291A (en) * | 2021-11-25 | 2021-12-21 | 四川宏华电气有限责任公司 | Reciprocating pump knocking-free valve cover device |
| CN113819291B (en) * | 2021-11-25 | 2022-02-08 | 四川宏华电气有限责任公司 | Reciprocating pump knocking-free valve cover device |
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Application publication date: 20121003 |