CN104792475A - Oil pump tightness performance test and leakage loss detection system and test device - Google Patents
Oil pump tightness performance test and leakage loss detection system and test device Download PDFInfo
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- CN104792475A CN104792475A CN201510228824.9A CN201510228824A CN104792475A CN 104792475 A CN104792475 A CN 104792475A CN 201510228824 A CN201510228824 A CN 201510228824A CN 104792475 A CN104792475 A CN 104792475A
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Abstract
The invention aims to solve technical problems of providing an oil pump tightness performance test and leakage loss detection system and test device, the oil pump tightness performance test and leakage loss detection can be switched conveniently, the degree of mechanization is high, and multiple oil pumps can be detected simultaneously. Since an overflow valve is arranged, the leakage loss detection state can be switched without the adjustment of a high pressure pump, the adaptability of the system is improved, and the oil pump tightness performance test and leakage loss detection can be switched conveniently since the system matches with a first switch valve and a second switch valve. After testing, an unloading valve is adopted to relief pressure, impact caused by system pressure change can be reduced, and the system safety can be guaranteed.
Description
Technical field
The present invention relates to oil well pump Performance Detection technical field, is specifically a kind of oil well pump experiments of sealing performance, wastage detection system and coordinative experiments device.
Background technology
Oil well pump is used for the oil of underground to rise to ground, after oil well pump dispatches from the factory or overhauls, experiments of sealing performance and wastage need be carried out detect to judge product quality, in industry, existing multiple standard specifies it, as: GB/T 18607, SY/T 5188, SY/T 5872, SY/T 5059 etc., around this demand, in industry, there are now multiple detection means and system." oil well pump sealing and wastage test bed " that " oilfield surface engineering (OSE) " the 63 to 74 page in April, 1994 proposes domesticly comparatively early occurs one of detection system, it can be fairly perfect the measuring ability realizing single oil well pump, but comparatively simple and crude, automatization level is lower." a kind of assemble and the comprehensive function platform system tested for oil well pump " that " petroleum machinery " the 32nd volume the 7th phase 43-45 page in 2004 " for the comprehensive function platform system of oil well pump assembling with test " proposes, in technique arrangement, be greatly improved in Aulomatizeted Detect, but too many improvement is not had for the bulk mechanical structure of testing table and fluid system aspect." the oil well pump leakage test research " of " oil instrument " the 21st volume the 5th phase 63-64 page in 2007 proposes a kind of fluid system for the test of oil well pump wastage, adopt electronic scale metering wastage simultaneously, and data are sent to test macro, improve the observing and controlling level of wastage metering; Application number be 201110404430.6 the gap leakage test method based on oil well pump performance test apparatus also disclose the fluid system that a kind of oil well pump wastage measures examination, improve testing efficiency by building high-low pressure two cover system.In addition, application number be 201210527525.1 application for a patent for invention " a kind of oil well pump wastage automatic checkout system " it is also proposed and be directed to wastage automatic checkout system, application number be 201410134469.4 application for a patent for invention " between oil well pump barrel and plunger wastage and sealing simple detection device " it is also proposed simple detection device.From above document: have fairly perfect automatic test and the solution of fluid system in prior art, but structure of the detecting device is also fairly simple, mechanization degree is not high; In addition, detection system of the prior art can only detect single oil well pump, lacks the detection scheme to many oil well pumps, to a certain degree have impact on testing efficiency.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of oil well pump experiments of sealing performance, wastage detection system and coordinative experiments device are provided, have oil well pump experiments of sealing performance and wastage measuring ability easy switching, mechanization degree is high, can simultaneously to the advantage that many oil well pumps detect.
Technical scheme of the present invention is: oil well pump experiments of sealing performance, wastage detection system, comprise low-lift pump, oil suction case, high-pressure pump, the first retaining valve, the first switch valve, second switch valve, pressure measurement contact, action pressure-testing joint and connect the pipeline of all parts, low pressure pump inlet is connected with oil suction case by pipeline, low pressure pump outlet is connected with the first one-way valve inlet, and the first one-way valved outlet connects action pressure-testing joint; High pressure pump inlet is connected with oil suction case by pipeline, and high pressure pump outlet is connected with the second one-way valve inlet, and the second one-way valved outlet connects the first switch valve entrance, and the first switch valve outlet connects action pressure-testing joint; The front end pipeline of action pressure-testing joint arranges pressure measurement contact; It is characterized in that: also comprise surplus valve, the second retaining valve, pipeline between high pressure pump outlet with the second retaining valve arranges bypass and second switch valve inlet is connected, second switch valve outlet port is connected with surplus valve entrance, and surplus valve outlet is connected with oil suction case by pipeline; The pipeline be connected with the second one-way valved outlet is also provided with bypass, and described bypass connects unloader entrance, and unloader outlet connects oil suction case.Method that oil well pump experiments of sealing performance and wastage detection system carry out oil well pump experiments of sealing performance is to adopt the present invention to carry out:
(1) the first switch valve is arranged on opening, second switch valve is arranged on closed condition;
(2) start low-lift pump, after test liquid is filled tested oil well pump, close low-lift pump;
(3) start high-pressure pump, Hi-pot test liquid is pumped into oil well pump, the fluid pressure in oil well pump is risen to test pressure;
(4) close the first switch valve, close high-pressure pump, pressurize;
(5) the fluid pressure change in oil well pump is detected by pressure measurement contact;
(6) unloader pressure release, off-test.
Method that oil well pump experiments of sealing performance and wastage detection system carry out wastage detection is to adopt the present invention to carry out:
(1) the first switch valve is arranged on opening, second switch valve is arranged on opening;
(2) start low-lift pump, after test liquid is filled tested oil well pump, close low-lift pump;
(3) start high-pressure pump, Hi-pot test liquid is pumped into oil well pump, by surplus valve, the fluid pressure in oil well pump is controlled in wastage detected pressures;
(4) test liquid overflowed of tested oil well pump end is measured;
(5) stop high-pressure pump, unloader pressure release, test terminates.
The pressure that the pressure of experiments of sealing performance detects higher than wastage, by the setting of surplus valve, need not regulate high-pressure pump, just wastage detected state is switched to, improve the adaptability of system, coordinate with the first switch valve, second switch valve, the switching of oil well pump experiments of sealing performance and wastage measuring ability can be carried out easily.After being completed, adopting unloader pressure release, system pressure can be reduced and change the impact caused, ensure security of system.
Improvement as doing oil well pump experiments of sealing performance of the present invention and wastage detection system: the pipeline also comprising the first oil sump tank, the second oil sump tank, the first discharge pump, the second discharge pump and connection all parts; Described first oil sump tank is arranged on tested oil well pump end relevant position, described second oil sump tank is arranged on below oil well pump and action pressure-testing joint connector, first oil sump tank is connected with the first discharge pump entrance by pipeline, and the first discharge pump outlet is connected with the second oil sump tank by pipeline; Second oil sump tank is connected with the second discharge pump entrance by pipeline, and the second discharge pump outlet is connected with oil suction case by pipeline.The test fluid of omitting when collecting oil well pump test by the first oil sump tank, the second oil sump tank, and be transported in oil suction case, recycling of test fluid can be accomplished, ensure that the clean of test site simultaneously.
The present invention also provides a kind of and oil well pump experiments of sealing performance and the matching used test unit of wastage detection system, comprise: frame, fixture, it is characterized in that, also comprise the pipeline of the first oil sump tank, the second oil sump tank, the first discharge pump, the second discharge pump and connection all parts; Described first oil sump tank is arranged on tested oil well pump end relevant position, described second oil sump tank is arranged on below oil well pump and action pressure-testing joint connector, first oil sump tank is connected with the first discharge pump entrance by pipeline, and the first discharge pump outlet is connected with the second oil sump tank by pipeline.
Improve as to the one of test unit, also be provided with control oil machine structure, described control oil machine structure is arranged on frame and oil well pump end front, described control oil machine structure comprises raising board, guidepost, guide frame, driving cylinder, described raising board end is provided with the groove matched with oil well pump external diameter, and be provided with guidepost below raising board, guidepost is flexibly connected with guide frame, driving cylinder is fixed on guide frame, and the driving stem of driving cylinder is fixedly connected with raising board.After being completed, driving cylinder bar is released, and lifted oil well pump one end, the test fluid in oil well pump flows under the influence of gravity in the second oil sump tank.Adopt in this way, can improve the test fluid recovery in oil well pump.
Improve as to the another kind of test unit, also be provided with and be no less than 2 feeding-discharging mechanisms, described feeding-discharging mechanism comprises location-plate, take-off plate, support, driving cylinder, and described location-plate end is provided with the groove matched with oil well pump, and location-plate is fixedly connected with support; Described take-off plate is parallel with location-plate, and be provided with guidepost below described take-off plate, guidepost is flexibly connected with support, and driving cylinder is fixed on support, and the driving stem of driving cylinder is fixedly connected with take-off plate; When driving stem is released, location-plate groove upper end is crossed at described take-off plate top, and when driving stem retracts, described movable plate top is in location-plate groove lower end; Described take-off plate top is provided with oil well pump guiding structural, described oil well pump guiding structural is: the direction along oil well pump charging is provided with the first guiding slope, described first guiding slope extends to the position corresponding with location-plate end groove, end is connected with stop ramps, described stop ramps and first is guided ramp angles and is more than or equal to 90 °, the end of described stop ramps does not cross the center line of groove, by the end of described stop ramps, be provided with the second guiding slope, described second guiding slope extends to oil well pump discharging direction.
During oil well pump supplied materials, driving cylinder releases driving stem makes movable plate top cross location-plate groove upper end, the oil well pump be placed on feeding rack lifts by the first guiding slope initiating terminal, oil well pump is above the first guiding slope rolling oil well pump location-plate groove, and stop ramps stops makes oil well pump stop rolling; Driving cylinder retracts, and take-off plate drives oil well pump to fall in location-plate groove, and fixture fixes oil well pump, carries out experiments of sealing performance or wastage detection; After testing or detecting, driving cylinder releases driving stem, and movable plate rises, and oil well pump and second is guided ramp interface and gone out location-plate groove by its jacking, and roll out along the second guiding slope test unit.The setting of feeding-discharging mechanism, makes oil well pump can pass in and out test unit easily.
The model of oil well pump is different, and its length is also different, in order to the oil well pump enabling test unit adapt to different length, frame is provided with walking dolly, and described walking dolly can along frame to-and-fro movement, and described first oil sump tank is arranged on walking dolly.The setting of walking dolly, expands the serviceability of test unit, makes it can test for the oil well pump that length is different.
On walking dolly, be also provided with control oil machine structure.So that oil well pump close beta liquid is emptying.
Any one in feeding-discharging mechanism, fixture also can be set on walking dolly or all arrange simultaneously.So that the transport of tested object and fixing.
In order to enable oil well pump system and device, multiple oil well pump is tested, following improvement is done to one of the present invention and oil well pump experiments of sealing performance and wastage detection system: need the number of the oil well pump tested to be n, the quantity of described first retaining valve, action pressure-testing joint, the first switch valve, pressure measurement contact is also n, the entrance of n the first retaining valve is all connected with low pressure pump outlet, and the outlet of n the first retaining valve connects 1 action pressure-testing joint respectively; The entrance of n the first switch valve is all connected with the second one-way valved outlet, and the first switch valve outlet connects 1 action pressure-testing joint respectively; The front end pipeline of each action pressure-testing joint is arranged respectively 1 pressure measurement contact.
When carrying out oil well pump experiments of sealing performance, in multiple oil well pump, pour into test fluid, after filling by low-lift pump simultaneously, stop low-lift pump, start high-pressure pump, when oil well pump internal pressure is promoted to test pressure, close the first switch valve, stop high-pressure pump, observe pressure change in pump from pressure measurement contact.System can carry out oil well pump test or detection to multiple oil well pump, thus improves work efficiency.
The pipeline that each first retaining valve is connected with low pressure pump outlet is also provided with the 3rd switch valve.The setting of the 3rd switch valve, makes each station can carry out test fluid perfusion separately, thus makes each station can be separate, routine tests and test.
In order to realize the test of multiple oil well pump, the present invention has also done following improvement to oil well pump experiments of sealing performance and the matching used test unit of wastage detection system: the fixture quantity of described fixing oil well pump is n; The quantity that the raising board end of described control oil machine structure is provided with the groove matched with oil well pump external diameter is n, the testing position of corresponding oil well pump respectively; Feeding-discharging mechanism aspect, the groove number coordinated with oil well pump set by described location-plate end is n, the quantity of the oil well pump guiding structural set by take-off plate top is also n, the groove coordinated with oil well pump of corresponding n location-plate end respectively, the second guiding slope of previous guiding structural is the first guiding slope of a rear guiding structural simultaneously simultaneously.
During oil well pump supplied materials, the driving cylinder of feeding-discharging mechanism is released and is made movable plate top cross location-plate groove upper end, and the oil well pump on feeding rack is transported to the oil well pump location-plate groove near supplied materials by first oil well pump guiding structural near supplied materials; The driving cylinder of feeding-discharging mechanism is released once again, first oil well pump lifts by the second guiding slope (the first guiding slope of second guiding structural) of first guiding structural, and being transported to the relevant position of next oil well pump location-plate groove, the oil well pump be placed on feeding rack is transported in first oil well pump location-plate groove by the first guiding structural simultaneously; Driving cylinder action n time, just can realize the charging of n oil well pump; After test, then action n time, the discharging of n oil well pump can be realized again.The setting of feeding-discharging mechanism, makes oil well pump can pass in and out test unit easily; N fixture can realize the fixing of multiple oil well pump, and the raising board of control oil machine structure arranges n groove, lifts and control out test fluid while can realizing n pump.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment system schematic diagram of oil well pump experiments of sealing performance of the present invention, wastage detection system.
Fig. 2 is the structural representation with a kind of embodiment of the matching used test unit of Fig. 1 oil well pump experiments of sealing performance, wastage detection system.
Fig. 3 is the structural representation of the fixture of test unit in Fig. 2.
Fig. 4 is the structural representation of the control oil machine structure of test unit in Fig. 2.
Fig. 5 is the structural representation of the feeding-discharging mechanism of test unit in Fig. 2.
Fig. 6 is the structural representation with the another kind of embodiment of the matching used test unit of Fig. 1 oil well pump experiments of sealing performance, wastage detection system.
To be that the present invention is a kind of be used in a kind of embodiment system schematic diagram carrying out testing experiments of sealing performance and wastage detection system to multiple oil well pump to Fig. 7.
Fig. 8 is the structural representation of the control oil machine structure of the test unit adapting to many pump testings.
Fig. 9 is the structural representation of the control oil machine structure of the test unit adapting to many pump testings.
Embodiment
embodiment 1.
Fig. 1 is a kind of embodiment system schematic diagram of oil well pump experiments of sealing performance of the present invention, wastage detection system.With reference to shown in Fig. 1, low-lift pump 2 entrance is connected with oil suction case 1 by pipeline, and low-lift pump 2 outlet is connected with the first retaining valve 3 entrance, and the first retaining valve 3 exports and connects action pressure-testing joint 4; High-pressure pump 5 entrance is connected with oil suction case 1 by pipeline, and high-pressure pump 5 outlet is connected with the second retaining valve 6 entrance, and the second retaining valve 6 exports connection first switch valve 7 entrance, and the first switch valve 7 exports and connects action pressure-testing joint 4; The front end pipeline of action pressure-testing joint 4 arranges pressure measurement contact 8; Surplus valve 10 is exported and is connected with oil suction case 1 by pipeline.Above system can realize oil well pump experiments of sealing performance, and its method is:
(1) the first switch valve 7 is arranged on opening;
(2) start low-lift pump 2, after test liquid is filled tested oil well pump, close low-lift pump 2;
(3) start high-pressure pump 5, Hi-pot test liquid is pumped into oil well pump, the fluid pressure in oil well pump is risen to test pressure;
(4) close high-pressure pump 5, close the first switch valve 7, pressurize;
(5) the fluid pressure change in oil well pump is detected by pressure measurement contact 8.
Pressure measurement contact 8 can the pressure measurement parts such as external tensimeter, pressure transducer.
According to the regulation of GB/T 18607, the pressure of pump assembly tolerance clearance wastage test is 10MPa, and the pressure of experiments of sealing performance is all higher than 10MPa, and original system directly can not carry out the test of tolerance clearance wastage to pump, and needing separately to add pressure-control circuit can.The plan of establishment that described pressure-control circuit is is: high-pressure pump 5 exports and the pipeline between the second retaining valve 6 arranges bypass and is connected with second switch valve 9 entrance, and second switch valve 9 outlet is connected with surplus valve 10 entrance, the outlet connection oil suction case 1 of surplus valve 10.
When carrying out wastage and detecting:
(1) first the first switch valve 7 is arranged on opening, second switch valve 9 is arranged on opening;
(2) start low-lift pump 2, after test liquid is filled tested oil well pump, close low-lift pump;
(3) start high-pressure pump 5, Hi-pot test liquid is pumped into oil well pump, by surplus valve 10, the fluid pressure in oil well pump is controlled in wastage detected pressures;
(4) test liquid overflowed of tested oil well pump end is measured.
High-pressure pump 5 is sustainable to charged pressure liquid in pump, thus completes wastage detection.First switch valve 7, second switch valve 9 coordinate, and can carry out the switching of oil well pump experiments of sealing performance and wastage measuring ability easily.
Also be provided with bypass exporting on the pipeline that is connected with the second retaining valve 6, described bypass connects unloader 11 entrance, and unloader 11 exports and connects oil suction case.After being completed, adopting unloader 11 pressure release, system pressure can be reduced and change the impact caused, ensure security of system.
The oil well pump end relevant position tested also is provided with the first oil sump tank 12, below oil well pump and action pressure-testing joint 4 connector, the second oil sump tank 13 is set, first oil sump tank logical 12 is crossed pipeline and is connected with the first discharge pump 14 entrance, and the first discharge pump 14 is exported and is connected with the second oil sump tank 13 by pipeline; Second oil sump tank 13 is connected with the second discharge pump 15 entrance by pipeline, and the second discharge pump 15 is exported and is connected with oil suction case 1 by pipeline.The test fluid of omitting when collecting oil well pump test by the first oil sump tank 12, second oil sump tank 13, and be transported in oil suction case, recycling of test fluid can be accomplished, ensure that the clean of test site simultaneously.
The pipeline connecting all parts in Fig. 1 is also provided with the parts such as valve, filtrator, fuel tank is also provided with refrigeratory, are all accessories that are long-term in order to backup system, stable operation, describe no longer one by one.
embodiment 2.
Fig. 2 is the structural representation with a kind of embodiment of the matching used test unit of Fig. 1 oil well pump experiments of sealing performance, wastage detection system and coordinative experiments device.First oil sump tank 12 arranges frame 20 afterbody, corresponding with tested oil well pump terminal position, second oil sump tank 13 is arranged on frame 20 head end, be positioned at below oil well pump and action pressure-testing joint 4 connector, first discharge pump 14 is arranged in frame 20, first oil sump tank 12 is connected with the first discharge pump 14 entrance by pipeline, and the first discharge pump 14 is exported and is connected with the second oil sump tank 13 by pipeline.
Frame 20 is provided with fixture 22 in end positions, and use fixture can fixation test and tested object.Fig. 3 is the structural representation of fixture 22, has the implementation of multiple clamping apparatus in the art, and person skilled can be selected as required.
In frame 20, oil well pump end front is provided with control oil machine structure 21.The concrete structure of control oil machine structure 21 is shown in Fig. 4, and driving cylinder 214 is fixed on guide frame 213, and the driving stem of driving cylinder 214 is fixedly connected with raising board 211, is provided with guidepost 2111 below raising board 211, and guidepost 2111 is flexibly connected with guide frame 213; The connected mode of Fig. 4 is that guidepost 2111 inserts in the guide sleeve of guide frame 213 setting, and those skilled in the art can also arrange other forms of flexible connection as required; Raising board 211 end is provided with the groove matched with oil well pump external diameter, and the fluted manner in Fig. 4 is V-shaped groove, and this area also has other implementation, and as U-shaped etc., those skilled in the art can select as required voluntarily.After being completed, driving cylinder bar is released, and raising board 211 rises, and raises oil well pump one end, and the test fluid in oil well pump flows under the influence of gravity in the second oil sump tank 13.Adopt in this way, can improve the test fluid recovery in oil well pump, be conducive to the clean of test site simultaneously.
Test unit in the present embodiment is also provided with 2 feeding-discharging mechanisms 23, and the structure of described feeding-discharging mechanism 23 is shown in shown in Fig. 2 and Fig. 5, and feeding-discharging mechanism 23 comprises location-plate 231, take-off plate 232, support 233, driving cylinder 234.As Fig. 5, described location-plate 231 end is provided with the groove matched with oil well pump, and location-plate 231 is fixedly connected with support 233, described take-off plate 232 is parallel with location-plate 231, guidepost 2321 is provided with below described take-off plate 232, guidepost 2321 is flexibly connected with support 233, the connected mode of Fig. 5 is that guidepost 2321 inserts in the guide sleeve of support 233 setting, and those skilled in the art can also arrange other forms of flexible connection as required, driving cylinder 234 is fixed on support 233, and the driving stem of driving cylinder 234 is fixedly connected with take-off plate 232, when driving stem is released, location-plate groove upper end is crossed at take-off plate 232 top, and when driving stem retracts, described movable plate 232 top is in location-plate groove lower end, described take-off plate 232 top is provided with oil well pump guiding structural, described oil well pump guiding structural is: the direction along oil well pump charging is provided with the first guiding slope 2322, described first guiding slope 2322 extends to the position corresponding with location-plate end groove, end is connected with stop ramps 2323, described stop ramps 2323 and first guides slope 2322 angulation α, α is more than or equal to 90 °, the end of described stop ramps 2323 does not cross the center line of groove, the second guiding slope 2324 is provided with by the end of described stop ramps 2323, described second guiding slope 2324 extends to oil well pump discharging direction.In order to represent convenient in Fig. 5, angle [alpha] to be labeled in when driving stem is released on take-off plate 232 position.
During oil well pump supplied materials, driving cylinder 234 releases driving stem makes movable plate 232 top cross location-plate 231 groove upper end, the oil well pump be placed on feeding rack lifts by the first guiding slope 2322 initiating terminal, oil well pump is rolled into above oil well pump location-plate 231 groove along the first guiding slope 2322, and stop ramps 2323 stops makes oil well pump stop rolling; Driving cylinder retracts, and take-off plate 232 drives oil well pump to fall in location-plate 231 groove, and fixture 22 fixes oil well pump, carries out experiments of sealing performance or wastage detection; After testing or detecting, driving cylinder 234 releases driving stem, and movable plate 232 rises, and oil well pump and second is guided slope 2324 and contacted and go out location-plate 231 groove by its jacking, and roll out along the second guiding slope 2324 test unit.The setting of feeding-discharging mechanism, makes oil well pump can pass in and out test unit easily.
Pass in and out more smoothly to make oil well pump, the groove of described location-plate 231 adopts following structure: oil well pump supplied materials direction is provided with the importing limit 2311 tending to supplied materials direction, oil well pump discharging direction is provided with the derivation limit 2312 tending to discharging direction, derives the extended height on limit 2312 higher than importing limit 2311.Adopt this structure, oil well pump input and output material is convenient.
embodiment 3.
Fig. 6 is the structural representation with the another kind of embodiment of the matching used test unit of Fig. 1 oil well pump experiments of sealing performance, wastage detection system and coordinative experiments device.The model of oil well pump is different, its length is also different, in order to the oil well pump enabling test unit adapt to different length, frame is provided with walking dolly 24, described walking dolly 24 along frame to-and-fro movement, walking dolly can be provided with the first oil sump tank 23, controls oil machine structure 21, feeding-discharging mechanism 23 is each a set of.The setting of walking dolly 24, expands the serviceability of test unit, makes it can test for the oil well pump that length is different.
Simultaneously on walking dolly, also fixture 22 can be set, so that the transport of tested object and fixing.
In Fig. 6, the concrete structure of other parts is identical with last embodiment, repeats no longer one by one.
embodiment 4.
To be that the present invention is a kind of be used in a kind of embodiment system schematic diagram carrying out testing experiments of sealing performance and wastage detection system to multiple oil well pump to Fig. 7.
As shown in Figure 7: the number needing the oil well pump of test is 3, the quantity of described first retaining valve 3, action pressure-testing joint 4, first switch valve 7, pressure measurement contact 8 is also 3, the entrance of the first retaining valve 3 all exports with low-lift pump 2 and is connected, and the outlet of each the first retaining valve 3 connects 1 action pressure-testing joint 4 respectively; The entrance of the first switch valve 7 all exports with the second retaining valve 9 and is connected, and the first switch valve 7 exports and connects 1 action pressure-testing joint 4 respectively; The front end pipeline of each action pressure-testing joint 4 is arranged respectively 1 pressure measurement contact 8.The pipeline that each first retaining valve is connected with low pressure pump outlet is also provided with the 3rd switch valve 16.
When carrying out oil well pump experiments of sealing performance, open the 3rd switch valve 16 before each first retaining valve 3, in multiple oil well pump, pour into test fluid by low-lift pump 2 simultaneously, after filling, stop low-lift pump 2, start high-pressure pump 5, when oil well pump internal pressure is promoted to test pressure, stop high-pressure pump 5, closeall first switch valve 3, observe pressure change in pump from pressure measurement contact 8.System can carry out oil well pump experiments of sealing performance to multiple oil well pump, thus improves work efficiency.
When carrying out the test of oil well pump wastage, open the first retaining valve 7 corresponding to corresponding institute pump testing, the 3rd switch valve 16, close other the first retaining valve 7, the 3rd switch valve 16, open second switch valve 9, in tested oil well pump, pour into test fluid by low-lift pump 2, after filling, stop low-lift pump 2, start high-pressure pump 5, start high-pressure pump 5, Hi-pot test liquid is pumped into oil well pump, by surplus valve 10, the fluid pressure in oil well pump is controlled in wastage detected pressures; After pressure stabilisation, measure the test liquid overflowed of tested oil well pump end.
System also can carry out sealing property test one by one to multiple oil well pump or multiple oil well pump carries out wastage detection simultaneously, and concrete grammar the present embodiment no longer describes.
embodiment 5.
Embodiment 5 is the test units used with the system support in embodiment 4, and its side view is identical with Fig. 2.With embodiment 2 difference be: fixture 22 quantity of fixing oil well pump is 3; The quantity that raising board 211 end of control oil machine structure 21 arranges the groove matched with oil well pump external diameter is 3, distinguishes the testing position of corresponding oil well pump; Fig. 8 is the structural representation of the control oil machine structure of the test unit adapting to many pump testings.
Feeding-discharging mechanism 23 aspect, contrast with Fig. 9 and describe, the groove number coordinated with oil well pump set by location-plate 235 end is 3, the quantity of the oil well pump guiding structural set by take-off plate 236 top is also 3, the groove coordinated with oil well pump of corresponding 3 location-plate 235 ends respectively, the second guiding slope of previous guiding structural is the first guiding slope of a rear guiding structural simultaneously simultaneously.
As Fig. 9, during oil well pump supplied materials, the driving cylinder 234 of feeding-discharging mechanism 23 is released and is made movable plate 236 top cross location-plate groove upper end, and the oil well pump on feeding rack is transported to the oil well pump location-plate groove near supplied materials by first oil well pump guiding structural 2361 near supplied materials; The driving cylinder of feeding-discharging mechanism is released once again, first guiding slope of the second guiding slope 2363(second guiding structural of first guiding structural) first oil well pump is lifted, and being transported to the relevant position of next oil well pump location-plate groove, the oil well pump be placed on feeding rack is transported in first oil well pump location-plate groove by the first guiding structural simultaneously; Driving cylinder action 3 times, just can realize the charging of 3 oil well pumps; After test, then action 3 times, the discharging of 3 oil well pumps can be realized again.The setting of feeding-discharging mechanism, makes oil well pump can pass in and out test unit easily; 3 fixtures can realize the fixing of multiple oil well pump, and the raising board of control oil machine structure arranges 3 grooves, lifts and control out test fluid while can realizing 3 pumps.
Claims (10)
1. an oil well pump experiments of sealing performance, wastage detection system, comprise low-lift pump, oil suction case, high-pressure pump, the first retaining valve, the first switch valve, second switch valve, pressure measurement contact, action pressure-testing joint and connect the pipeline of all parts, low pressure pump inlet is connected with oil suction case by pipeline, low pressure pump outlet is connected with the first one-way valve inlet, and the first one-way valved outlet connects action pressure-testing joint; High pressure pump inlet is connected with oil suction case by pipeline, and high pressure pump outlet is connected with the second one-way valve inlet, and the second one-way valved outlet connects the first switch valve entrance, and the first switch valve outlet connects action pressure-testing joint; The front end pipeline of action pressure-testing joint arranges pressure measurement contact; It is characterized in that: also comprise surplus valve, the second retaining valve, pipeline between high pressure pump outlet with the second retaining valve arranges bypass and second switch valve inlet is connected, second switch valve outlet port is connected with surplus valve entrance, and surplus valve outlet is connected with oil suction case by pipeline; The pipeline be connected with the second one-way valved outlet is also provided with bypass, and described bypass connects unloader entrance, and unloader outlet connects oil suction case.
2. oil well pump experiments of sealing performance according to claim 1 and wastage detection system, is characterized in that: the pipeline also comprising the first oil sump tank, the second oil sump tank, the first discharge pump, the second discharge pump and connection all parts; Described first oil sump tank is arranged on tested oil well pump end relevant position, described second oil sump tank is arranged on below oil well pump and action pressure-testing joint connector, first oil sump tank is connected with the first discharge pump entrance by pipeline, and the first discharge pump outlet is connected with the second oil sump tank by pipeline; Second oil sump tank is connected with the second discharge pump entrance by pipeline, and the second discharge pump outlet is connected with oil suction case by pipeline.
3. oil well pump experiments of sealing performance according to claim 1 and 2 and wastage detection system, it is characterized in that: the number of the oil well pump of needs test is n, the quantity of described first retaining valve, action pressure-testing joint, the first switch valve, pressure measurement contact is also n, the entrance of n the first retaining valve is all connected with low pressure pump outlet, and the outlet of n the first retaining valve connects 1 action pressure-testing joint respectively; The entrance of n the first switch valve is all connected with the second one-way valved outlet, and the first switch valve outlet connects 1 action pressure-testing joint respectively; The front end pipeline of each action pressure-testing joint is arranged respectively 1 pressure measurement contact.
4. oil well pump experiments of sealing performance according to claim 3 and wastage detection system, is characterized in that: on the pipeline that each first retaining valve is connected with low pressure pump outlet, be also provided with the 3rd switch valve.
5. one kind with the oil well pump experiments of sealing performance in claim 2 and the matching used test unit of wastage detection system, comprise: frame, fixture, it is characterized in that, also comprise the pipeline of the first oil sump tank, the second oil sump tank, the first discharge pump, the second discharge pump and connection all parts; Described first oil sump tank is arranged on tested oil well pump end relevant position, described second oil sump tank is arranged on below oil well pump and action pressure-testing joint connector, first oil sump tank is connected with the first discharge pump entrance by pipeline, and the first discharge pump outlet is connected with the second oil sump tank by pipeline.
6. oil well pump test unit according to claim 5, it is characterized in that: be also provided with control oil machine structure, described control oil machine structure is arranged on frame and oil well pump end front, described control oil machine structure comprises raising board, guidepost, guide frame, driving cylinder, described raising board end is provided with the groove matched with oil well pump external diameter, and be provided with guidepost below raising board, guidepost is flexibly connected with guide frame, driving cylinder is fixed on guide frame, and the driving stem of driving cylinder is fixedly connected with raising board.
7. oil well pump test unit according to claim 6, it is characterized in that: be also provided with and be no less than 2 feeding-discharging mechanisms, described feeding-discharging mechanism comprises location-plate, take-off plate, support, driving cylinder, described location-plate end is provided with the groove matched with oil well pump, and location-plate is fixedly connected with support; Described take-off plate is parallel with location-plate, and be provided with guidepost below described take-off plate, guidepost is flexibly connected with support, and driving cylinder is fixed on support, and the driving stem of driving cylinder is fixedly connected with take-off plate; When driving stem is released, location-plate groove upper end is crossed at described take-off plate top, and when driving stem retracts, described movable plate top is in location-plate groove lower end; Described take-off plate top is provided with oil well pump guiding structural, described oil well pump guiding structural is: the direction along oil well pump charging is provided with the first guiding slope, described first guiding slope extends to the position corresponding with location-plate end groove, end is connected with stop ramps, described stop ramps and first is guided ramp angles and is more than or equal to 90 °, the end of described stop ramps does not cross the center line of groove, by the end of described stop ramps, be provided with the second guiding slope, described second guiding slope extends to oil well pump discharging direction.
8. oil well pump test unit according to claim 5, is characterized in that: in frame, be provided with walking dolly, and described walking dolly can along frame to-and-fro movement, and described first oil sump tank is arranged on walking dolly.
9. oil well pump test unit according to claim 8, is characterized in that: on walking dolly, is also provided with one or more in control oil machine structure, feeding-discharging mechanism, fixture.
10. the oil well pump test unit according to any one of claim 5 to 7 or 9, is characterized in that: the fixture quantity of described fixing oil well pump is n; The quantity that the raising board end of described control oil machine structure is provided with the groove matched with oil well pump external diameter is n, the testing position of corresponding oil well pump respectively; Feeding-discharging mechanism aspect, the groove number coordinated with oil well pump set by described location-plate end is n, the quantity of the oil well pump guiding structural set by take-off plate top is also n, the groove coordinated with oil well pump of corresponding n location-plate end respectively, the second guiding slope of previous guiding structural is the first guiding slope of a rear guiding structural simultaneously simultaneously.
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| CN107246262A (en) * | 2017-04-11 | 2017-10-13 | 西南石油大学 | A kind of leakage amount detecting device and method for simulating oil well pump working environment |
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| CN110361144A (en) * | 2019-07-31 | 2019-10-22 | 洛阳博泰机车装备有限公司 | Harmonious locomotive main transformer test technology equipment and method |
| CN110905797A (en) * | 2019-12-06 | 2020-03-24 | 吉林大学 | Plunger leakage, dynamic and static sealing and friction performance testing device |
| CN112539892A (en) * | 2020-12-14 | 2021-03-23 | 安徽宝隽机车部件有限公司 | Negative pressure-based tightness detection device |
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| CN110905797A (en) * | 2019-12-06 | 2020-03-24 | 吉林大学 | Plunger leakage, dynamic and static sealing and friction performance testing device |
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| CN112539892A (en) * | 2020-12-14 | 2021-03-23 | 安徽宝隽机车部件有限公司 | Negative pressure-based tightness detection device |
| CN112539892B (en) * | 2020-12-14 | 2022-08-09 | 安徽宝隽机车部件有限公司 | Negative pressure-based tightness detection device |
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