CN207964192U - A kind of valve secondary sealing detection device - Google Patents
A kind of valve secondary sealing detection device Download PDFInfo
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- CN207964192U CN207964192U CN201820515534.1U CN201820515534U CN207964192U CN 207964192 U CN207964192 U CN 207964192U CN 201820515534 U CN201820515534 U CN 201820515534U CN 207964192 U CN207964192 U CN 207964192U
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- leakage
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Abstract
The utility model is related to a kind of valve secondary sealing detection devices.Described device includes monitor station, leakage observation ward, pressure vacuum gauge, pressure retaining valve and vacuum pump；Monitor station is connected by pipeline with leakage observation ward；Tested side valve pair is installed on monitor station and is connected with pipeline by monitor station air entry；Bubble observation liquid is housed in leakage observation ward, and the liquid level of bubble observation liquid is higher than in pipeline and the observation case air entry for leaking observation ward's junction formation；Leakage observation ward is connected with pressure vacuum gauge and pressure retaining valve respectively by pressure meter three-way connector, and the liquid level of bubble observation liquid is less than the observation case exhaust outlet formed with pressure meter three-way joint in leakage observation ward and monitor station air entry；Pressure retaining valve is connected with vacuum pump.Using the valve secondary sealing detection device of the utility model, sealing propertytest accuracy rate, detection efficiency and the examination criteria of valve for oil-well pump pair can be improved, improves valve secondary sealing property amount.
Description
Technical field
The utility model is related to oil exploration equipments to detect correlative technology field, concretely relate to a kind of valve secondary sealing
Property detection device.
Background technology
Currently, oil well pump used in oil-gas mining field will use two sets or two sets or more of valve ball and valve seat, structure
Oil inlet at oil well pump and delivery valve assembly, valve ball, valve seat are the core component of oil well pump, while being vulnerable parts.
It is to be sealed by the band together being ground on valve seat between valve ball and valve seat.Valve ball and seat leakage
Failure is the most important failure mode of oil well pump.
Oil well pump be mounted on underground oil wells in crude oil extraction, operating mode very severe, if when oil well pump assemble, valve ball with
The poor sealing of valve seat, or have slight leakage without detected, it is used once being installed in oil well, valve ball and valve seat
Leakproofness will accelerate to fail, and lead to oil well pump initial failure, workover treatment must be carried out in advance by such case occur, be beaten
It pulls oil well pump out to be replaced, workover treatment and loss caused by due to well workover stops production are prodigious.
Valve ball and valve seat are newly pumped with oil well pump before assembling and repairing pump assembly before manufacture, will the inspection of 100% being sealed property
It surveys.
Conventional detection device and method are vacuumized with vacuum pump at present, after reaching a higher vacuum pressure,
It provides the pressurize regular hour, then judges whether leakproofness closes by the way that whether observation vacuum pressure meter reading has pressure drop
Lattice, the defect of this method are that cannot intuitively observe valve ball and valve base sealing with the presence or absence of leakage, due to pressure vacuum gauge
Precision and indicator sensitivity limitation, when there is minor leakage, gauge hand do not reflect come or pressure gauge refer to
The amplitude of fluctuation very little of needle is not easy detected personnel and discovers before the deadline.And when the pipeline of this detection device or control
Also pressure gauge reading is caused to reduce when the system leaks such as valve processed, is judged by accident to caused by.Therefore, the detection of this detection method is accurate
True rate and detection efficiency be not high.
Utility model content
For the deficiency of the prior art, the utility model provides a kind of valve secondary sealing detection device.
The technical solution of the valve secondary sealing detection device of the utility model is as follows：
A kind of valve secondary sealing detection device comprising monitor station, leakage observation ward, pressure vacuum gauge, pressure retaining valve and true
Sky pump；The monitor station is connected by pipeline with the leakage observation ward；In a state of use, it is detected side valve pair and is installed on institute
It states on monitor station and is connected by monitor station air entry with the pipeline；It is observed equipped with bubble in the leakage observation ward
Liquid, and the liquid level of bubble observation liquid is higher than the observation case formed with the leakage observation ward junction in the pipeline and inhales
Gas port；The leakage observation ward is connected with the pressure vacuum gauge and the pressure retaining valve respectively by pressure meter three-way connector,
And the liquid level of the bubble observation liquid is less than in the leakage observation ward and pressure meter three-way joint formation
Observe case exhaust outlet and the monitor station air entry；The pressure retaining valve is connected with the vacuum pump.
When the valve secondary sealing detection device work of the utility model, open vacuum pump and pressure retaining valve, suction monitor station with
At valve pair cooperation, pipeline and leakage observe indoor air, in air flow through leakage observation ward by observing case air-breathing
When mouth enters bubble observation liquid, bubble is generated, after bubble spilling observes liquid, then the discharge of case exhaust outlet passes through pressure gauge three from
Pass joint, pressure retaining valve, then be discharged in ambient air by vacuum pump；When the pressure value of pressure vacuum gauge reaches required value,
Pressure retaining valve is closed, system pressurize, if do not leaked between valve ball and valve seat, the observation case being immersed in bubble observation liquid sucks
Mouth is generated without bubble, once valve ball and valve seat have slight leakage, observation case air entry just to have a small amount of bubble and generate, hold very much
Easily it is observed；And due to the relatively not high limitation of the accuracy and sensitivity of pressure vacuum gauge, table when only slight leakage
Pointer starts to deflect not yet, and when leakage rate reaches a certain level, bubbles volume reaches a certain level, and gauge hand just starts bright
Aobvious deflection, also can observe whether there is leakage by the pressure change of pressure gauge at this time.Since leakage bubble appears in pressure gauge
Before throw of pointer, so for the secondary micro- leakage for being insufficient to allow gauge hand to deflect of valve, it can also be by leaking bubble
It observes.
Therefore, by using the valve secondary sealing detection device of the utility model, the secondary (valve ball of valve for oil-well pump can be improved
And valve seat) sealing propertytest accuracy rate, detection efficiency and examination criteria, improve valve secondary sealing property amount.
According to a preferred embodiment, the valve secondary sealing detection device further includes relief valve；The relief valve
It is connected with the air inlet three-way connection being set on the pipeline by blowdown line；Alternatively, the valve secondary sealing detection dress
It further includes check valve to set；The check valve is arranged on the pipeline.
It, since pull of vacuum is very big, is not easy to take from monitor station when detecting larger specification valve pair by the way that relief valve is arranged
Lower valve ball and valve seat, at this point, after opening relief valve enters by air, so that it may easily remove valve ball and valve seat.
According to a preferred embodiment, the valve secondary sealing detection device further includes cabinet；On the cabinet
It is formed with the first platform and the second platform, and first position of platform is higher than second platform so that the cabinet is in
It is step-like；The monitor station is set on first platform；The leakage observation ward and the pressure retaining valve are set to described
On two platforms；The vacuum pump is set in the cabinet.
According to a preferred embodiment, the power switch of the vacuum pump is set on second platform, is led to
Conducting wire is crossed with the vacuum pump to be connected；The vacuum-pump power supply line for being connected with attaching plug of the vacuum pump is from the cabinet side
Portion is pierced by.
According to a preferred embodiment, the relief valve in the valve secondary sealing detection device is set to the cabinet
Side；The relief valve is connected by blowdown line with the air inlet three-way connection being set on the pipeline.
According to a preferred embodiment, the leakage observation ward is transparent sealed cylindrical or transparent rectangular close
Joint sealing.
According to a preferred embodiment, the bubble observation liquid is transparency liquid.
Compared with prior art, the valve secondary sealing detection device of the utility model has the advantages that：
1. the valve secondary sealing detection device of the utility model is to observe bubble to determine whether based on gas leakage, with observation very
The pressure drop of hollow pressure gauge judges whether supplemented by gas leakage, since the observation leakage bubble ratio observation pressure gauge number of degrees are more intuitive, more accurate
Really, therefore erroneous judgement can be reduced, and observe leakage the bubble used time it is shorter, detection efficiency can be improved.
2. the valve secondary sealing detection device system pipes of the utility model are short out, not complicated solenoid valve, relay etc.
Control system, simple in structure, failure rate is low, and small in volume is portable, is detected convenient for oil well pump maintenance sites.
3. can preferably detect valve ball in low pressure detection process using the valve secondary sealing detection device of the utility model
With the overall targets such as profile tolerance, the surface roughness of valve base sealing band.
In conclusion the valve secondary sealing detection device using the utility model is insufficient to allow pressure gauge to refer to valve pair
Micro- leakage of needle deflection can also be observed by leaking bubble, therefore examination criteria higher, and valve ball and valve can greatly improved
The leakproofness quality of seat.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model valve secondary sealing detection device.
Reference numerals list
1- cabinets, the first platforms of 101-, the second platforms of 102-, 2- monitor stations, 3- leak observation ward, and 4- bubbles observe liquid,
5- pressure vacuum gauges, 6- pressure meter three-way connectors, 7- pressure retaining valves, 8- power switches, 9- conducting wires, 10- vacuum pumps, 11- vacuum pumps
Power cord, 12- air inlet three-way connections, 13- relief valves, 14- pipelines, 15- monitor station air entries, 16- observe case air entry, 17-
Case exhaust outlet is observed, 18- leaks bubble, 19- valve balls, 20- valve seats, 21- blowdown lines.
Specific implementation mode
The valve secondary sealing detection device of the utility model is described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram of the valve secondary sealing detection device of the present embodiment.It illustrates the utility model valve pairs
A kind of preferred embodiment of device for detecting sealability.
As shown in Figure 1, a kind of valve secondary sealing detection device comprising monitor station 2, leakage observation ward 3, pressure vacuum gauge
5, pressure retaining valve 7 and vacuum pump 10.
Monitor station 2 is connected by pipeline 14 with leakage observation ward 3.Preferably, leakage observation ward 3 is that transparent sealing is justified
Cylinder or transparent quad seal case.
In a state of use, it is installed on monitor station 2 by the tested side valve pair that valve ball 19 and valve seat 20 are formed and passes through inspection
Scaffold tower air entry 15 is connected with pipeline 14.Specifically, the valve seat 20 in tested side valve pair is mounted on monitor station 2, pipeline 14
It is connected to valve seat 20 by monitor station air entry 15 so that monitor station can pass through pipeline with the air at valve ball and valve seat cooperation
14 are extracted.Preferably, a check valve can also be set between pipeline 14 and leakage observation ward 3.
In leakage observation ward 3 liquid 4 is observed equipped with bubble.Preferably, bubble observation liquid 4 is transparency liquid, such as transparent
Lubricating oil.And the liquid level that bubble observes liquid 4 is higher than in pipeline 14 and the observation case air entry for leaking observation ward's 3 junction formation
16。
Leakage observation ward 3 is connected with pressure vacuum gauge 5 and pressure retaining valve 7 respectively by pressure meter three-way connector 6.And gas
The liquid level of bubble observation liquid 4 be less than the observation case exhaust outlet 17 formed in leakage observation ward 3 and 6 junction of pressure meter three-way connector and
Monitor station air entry 15.Pressure retaining valve 7 is connected with vacuum pump 10.
Further, valve secondary sealing detection device further includes relief valve 13.Relief valve 13 by blowdown line 21 with set
The air inlet three-way connection 12 being placed on pipeline 14 is connected.
Further, valve secondary sealing detection device further includes cabinet 1.
The first platform 101 and the second platform 102 are formed on cabinet 1, and 101 position of the first platform is flat higher than second
Platform 102 so that cabinet 1 is in step-like.
Monitor station 2 is set on the first platform 101.Leakage observation ward 3 and pressure retaining valve 7 are set on the second platform 102.Very
Sky pump 10 and pipeline 14 are set in cabinet 1.The power switch 8 of vacuum pump 10 is set on the second platform 102, passes through conducting wire
9 are connected with vacuum pump 10；The vacuum-pump power supply line 11 for being connected with attaching plug of vacuum pump 10 is pierced by from 1 side of cabinet.
Relief valve 13 in valve secondary sealing detection device is set to 1 side of cabinet；And relief valve 13 passes through relief tube
Line 21 is connected with the air inlet three-way connection 12 being set on pipeline 14.By the way that relief valve is arranged, larger specification valve pair is being detected
When, since pull of vacuum is very big, it is not easy to remove valve ball and valve seat from monitor station, at this point, after opening relief valve enters by air,
Valve ball and valve seat can easily be removed.
Alternatively, pipeline can be located on pipeline 14 and leak one check valve of junction setting of observation ward 3, to prevent
When removing valve ball and valve seat, observation liquid is overflowed from the monitor station air entry on monitor station.
The valve secondary sealing detection device course of work of the utility model is as follows：
When work, vacuum-pump power supply switch is opened, vacuum pump work opens pressure retaining valve；Vacuum pump starts to aspirate monitor station
With at valve pair cooperation, pipeline and leakage observe indoor air, in air flow through leakage observation ward and inhaled by observing case
When gas port enters bubble observation liquid, bubble is generated, after bubble overflows observation liquid, then case exhaust outlet is discharged from, passes through pressure
Table three-way connection, pressure retaining valve, then be discharged in ambient air by vacuum pump；When the pressure value of pressure vacuum gauge reaches required value
When, close pressure retaining valve, system pressurize, if do not leaked between valve ball and valve seat, be immersed in bubble observation liquid in observation case
Suction inlet does not reveal the generation of bubble 18, once valve ball and valve seat have slight leakage, observation case air entry just has to be let out on a small quantity
The bubble 18 that leaks generates, it is easy to be observed.
And due to the relatively not high limitation of the accuracy and sensitivity of pressure vacuum gauge, list index when only slight leakage
There are no starting to deflect, when leakage rate reaches a certain level, bubbles volume reaches a certain level, and gauge hand just starts apparent inclined
Turn, also can observe whether there is leakage by the pressure change of pressure gauge at this time.
The valve secondary sealing detection device of the utility model to observe bubble to determine whether based on gas leakage, to observe vacuum
The pressure drop of pressure gauge judges whether supplemented by gas leakage, since the observation leakage bubble ratio observation pressure gauge number of degrees are more intuitive, more acurrate,
Therefore erroneous judgement can be reduced, and observe leak the bubble used time it is shorter, detection efficiency can be improved.In addition, the utility model
Valve secondary sealing detection device system pipes are short out, not complicated solenoid valve, relay dispatch control system, simple in structure, failure
Rate is low, small in volume, portable, is detected convenient for oil well pump maintenance sites.And the valve secondary sealing of the utility model detects
Device can preferably detect the synthesis such as profile tolerance, surface roughness of valve ball and valve base sealing band and refer in low pressure detection process
Mark.
In conclusion the valve secondary sealing detection device using the utility model is insufficient to allow pressure gauge to refer to valve pair
Micro- leakage of needle deflection can also be observed by leaking bubble, therefore examination criteria higher, and valve ball and valve can greatly improved
The leakproofness quality of seat.
It should be noted that all features disclosed in this specification or disclosed all methods or in the process the step of,
Other than mutually exclusive feature and/or step, it can combine in any way.
In addition, above-mentioned specific embodiment is exemplary, those skilled in the art can be in the utility model disclosure
Inspiration under find out various solutions, and these solutions also belong to the open scope of the utility model and fall into this reality
Within novel protection domain.It will be understood by those skilled in the art that the utility model specification and its attached drawing are explanation
Property and not constitute limitations on claims.The scope of protection of the utility model is limited by claim and its equivalent.
Claims (7)
1. a kind of valve secondary sealing detection device, which is characterized in that it includes monitor station (2), leakage observation ward (3), vacuum pressure
Power table (5), pressure retaining valve (7) and vacuum pump (10)；
The monitor station (2) is connected by pipeline (14) with the leakage observation ward (3)；In a state of use, it is detected side valve
Pair is installed on the monitor station (2) and is connected with the pipeline (14) by monitor station air entry (15)；
Equipped with bubble observation liquid (4) in the leakage observation ward (3), and the liquid level of bubble observation liquid (4) is higher than
The observation case air entry (16) that the pipeline (14) is formed with described leakage observation ward (3) junction；
The leakage observation ward (3) by pressure meter three-way connector (6) respectively with the pressure vacuum gauge (5) and the pressure retaining valve
(7) it is connected, and the liquid level of bubble observation liquid (4) is less than in the leakage observation ward (3) and the pressure meter three-way
The observation case exhaust outlet (17) and the monitor station air entry (15) that connector (6) junction is formed；
The pressure retaining valve (7) is connected with the vacuum pump (10).
2. valve secondary sealing detection device according to claim 1, which is characterized in that the valve secondary sealing detection device
Further include relief valve (13)；The relief valve (13) passes through blowdown line (21) and the air inlet three being set on the pipeline (14)
Pass joint (12) is connected；
Alternatively, the valve secondary sealing detection device further includes check valve；The check valve is arranged on the pipeline.
3. valve secondary sealing detection device according to claim 1, which is characterized in that the valve secondary sealing detection device
It further include cabinet (1)；
The first platform (101) and the second platform (102), and first platform (101) position are formed on the cabinet (1)
It sets and is higher than second platform (102) so that the cabinet (1) is in step-like；
The monitor station (2) is set on first platform (101)；The leakage observation ward (3) and the pressure retaining valve (7) are set
It is placed on second platform (102)；The vacuum pump (10) is set in the cabinet (1).
4. valve secondary sealing detection device according to claim 3, which is characterized in that the power supply of the vacuum pump (10) is opened
It closes (8) to be set on second platform (102), be connected with the vacuum pump (10) by conducting wire (9)；
The vacuum-pump power supply line (11) for being connected with attaching plug of the vacuum pump (10) is pierced by from the cabinet (1) side.
5. valve secondary sealing detection device according to claim 3, which is characterized in that the valve secondary sealing detection device
In relief valve (13) be set to the cabinet (1) side；The relief valve (13) is by blowdown line (21) and is set to institute
The air inlet three-way connection (12) stated on pipeline (14) is connected.
6. the valve secondary sealing detection device according to one of claim 1 to 5, which is characterized in that the leakage observation ward
(3) it is transparent sealed cylindrical or transparent quad seal case.
7. the valve secondary sealing detection device according to one of claim 1 to 5, which is characterized in that the bubble observes liquid
(4) it is transparency liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820515534.1U CN207964192U (en) | 2018-04-11 | 2018-04-11 | A kind of valve secondary sealing detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820515534.1U CN207964192U (en) | 2018-04-11 | 2018-04-11 | A kind of valve secondary sealing detection device |
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| Publication Number | Publication Date |
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| CN207964192U true CN207964192U (en) | 2018-10-12 |
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| CN201820515534.1U Active CN207964192U (en) | 2018-04-11 | 2018-04-11 | A kind of valve secondary sealing detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225682A (en) * | 2018-04-11 | 2018-06-29 | 四川澳维采油设备有限公司 | A kind of valve secondary sealing detection device and detection method |
| WO2021237232A1 (en) * | 2020-05-18 | 2021-11-25 | Baker Hughes Oilfield Operations Llc | Method and apparatus for testing for and removing trapped air from submersible well pump assembly |
-
2018
- 2018-04-11 CN CN201820515534.1U patent/CN207964192U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225682A (en) * | 2018-04-11 | 2018-06-29 | 四川澳维采油设备有限公司 | A kind of valve secondary sealing detection device and detection method |
| WO2021237232A1 (en) * | 2020-05-18 | 2021-11-25 | Baker Hughes Oilfield Operations Llc | Method and apparatus for testing for and removing trapped air from submersible well pump assembly |
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