CN206973276U - Oil-gas pipeline leak source nondestructive testing instrument - Google Patents
Oil-gas pipeline leak source nondestructive testing instrument Download PDFInfo
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- CN206973276U CN206973276U CN201720235743.6U CN201720235743U CN206973276U CN 206973276 U CN206973276 U CN 206973276U CN 201720235743 U CN201720235743 U CN 201720235743U CN 206973276 U CN206973276 U CN 206973276U
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- adapter sleeve
- outer barrel
- sensor outer
- steel column
- oil
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Abstract
Discussion on Pipe Leakage Detection Technology field is the utility model is related to, more particularly to a kind of oil-gas pipeline leak source nondestructive testing instrument.Support base is designed with first adapter sleeve of the device, support base upper end connects sensor outer barrel, sensor outer barrel upper end connection sealing pressure head, elastic ball is set in support base, elastic ball bottom is stretched into inside the first adapter sleeve, elastic ball top is spacing by support base, and elastic ball upper end is provided with steel column and contacted with steel column bottom, and steel column is placed in sensor outer barrel and can moved up and down in sensor outer barrel.The utility model, which realizes, can obtain stabilization, detection signal regular, easy to identify; and it can be good at protecting piezoelectric ceramic piece; when pipeline has minor leakage; also it is able to detect that the high detection signal of resolution; and it can ensure that device is brought into close contact with pressure fluid tubes outer surface; make the signal that detects more accurate, error in judgement is reduced when judging pipeline internal leakage detection and leakage point position.
Description
Technical field：
Discussion on Pipe Leakage Detection Technology field is the utility model is related to, more particularly to a kind of oil-gas pipeline leak source Non-Destructive Testing
Instrument.
Background technology：
The pressure fluid tubes such as the gas pipeline, oil transmission pipeline, water pipe of underground are embedded in because laying work area is wide, when
Its leakage point is not easy to be found in time after leakage occurs in pipeline, so as to cause the loss and waste of resource, and may bring safety
Hidden danger and environmental pollution.At present, the detection for pipeline leakage signal mainly relies on pressure sensor and ultrasonic sensor,
But pressure sensor is expensive, the cost of pipeline leakage testing control system is increased；Ultrasonic sensor is in noise suppressed
In have apparent effect, but ultrasonic sensor is only limitted to the signal detection of supersonic range scope, to supersonic range scope it
Some outer leakage signals do not have detection effect, therefore are unfavorable for the detection of leakage signal.
Chinese utility model patent, a kind of novel pipeline of patent name leak the cannot-harm-detection device, Patent No.
201220756205.9, it is proposed that a kind of pipe leakage the cannot-harm-detection device, including sealing pressure head, sensor outer barrel, support base,
Small signals amplification device, division board, sealing ring, piezoelectric ceramic piece, compression spring, sensor outer barrel lower end are fixed on support base,
Upper end is connected through a screw thread with sealing pressure head, and division board, sealing ring are located at sensor outer barrel upper end port, and piezoelectric ceramic piece leads to
On support base, small signals amplification device is arranged on division board overcompression spring supporting, and passes through signal wire and piezoelectric ceramic piece
Connection, support base lower end are provided with a circular fixture, and fixture left end, right-hand member, lower end are respectively provided with a probe.This is practical new
Type patent improves the sensitivity that device captures to pipeline leakage signal, and not other signals outside by pipeline leakage signal
Interference effect,, will not to pipeline without carrying out the operation such as perforate on pipeline suitable for the pressure fluid tubes of different tube diameters
Cause to damage.But piezoelectric ceramic piece is supported on support base by compression spring, in use due to compression spring
Stretch and extend irregular, unstable, can not to be stablized signal, and compression spring only has bottom to be connected with support base,
The normal pressure oscillation of fluids within pipes itself can also make compression spring swing, when piezoelectric ceramic piece and sensor outer barrel
When inwall collides, piezoelectric ceramic piece can be not only damaged, and spurious signal can be sent, due to the limitation of compression spring itself
Property, when pipeline has minor leakage, the signal captured by compression spring is very weak, and signal is carried out by small signals amplification device
It also is difficult to distinguish after amplification；Device is arranged on by pressure fluid tubes outer wall by circular fixture in this utility model patent
On, due to setting regulation probe, it is difficult to ensure that circular fixture is bonded with pressure fluid tubes outer surface, fitting closely can not be tight
Ghost image rings acquisition of the device to pressure fluid tubes vibration signal, makes the signal intensity of acquisition on the weak side, and small signals amplification device will be examined
The signal measured be sent to main control centre carry out calculate processing when, pipeline internal leakage detection and the judgement of leakage point position all can
There is error.
Utility model content：
The technical problems to be solved in the utility model is to provide a kind of oil-gas pipeline leak source nondestructive testing instrument, and the device is realized
Stabilization, detection signal regular, easy to identify can be obtained, and can be good at protecting piezoelectric ceramic piece, when pipeline has
During minor leakage, the high detection signal of resolution is also able to detect that, and device and pressure fluid tubes appearance can be ensured
Face is brought into close contact, and makes the signal that detects more accurate, is reduced when judging pipeline internal leakage detection and leakage point position and is judged to miss
Difference.Stabilization, signal easy to identify can not be obtained by overcoming existing pipe leakage the cannot-harm-detection device, and piezoelectric ceramic piece easily touches
Damage is bad, it is difficult to identifies the deficiency of small-signal.
Technical solution adopted in the utility model is：A kind of oil-gas pipeline leak source nondestructive testing instrument, including the first fastening
It is the space for the pipeline that can be fastened among after set and the second adapter sleeve, the first adapter sleeve and the second adapter sleeve closure, first
Adapter sleeve and second adapter sleeve one end are hinged, and the first adapter sleeve and the second adapter sleeve other end pass through the first bolt connection；First
Support base, support base upper end connection sensor outer barrel, sensor outer barrel upper end connection sealing pressure head, support are designed with adapter sleeve
Elastic ball is set in seat, and elastic ball bottom is stretched into inside the first adapter sleeve, and elastic ball top is spacing by support base, elastic ball upper end
Contacted provided with steel column and with steel column bottom, steel column is placed in sensor outer barrel and can moved up and down in sensor outer barrel, steel
Flexible sheet is set in the circular groove of post upper end, and the bottom and top of flexible sheet and circular groove are left space, be equipped with flexible sheet
Multiple elastic pearls, piezoelectric ceramic piece are placed in elastic pearl upper end and on steel columns, the installation sealing of sensor outer barrel upper end
Pad, sensor outer barrel top set division board, sealing pressure head inside installation small signals amplification device, and small signals amplification device passes through signal
Line is connected with piezoelectric ceramic piece.
First adapter sleeve and the second adapter sleeve use thickness to be made up of 2~4mm steel plate.
First adapter sleeve and the second adapter sleeve other end are equipped with flange connector, and two flange connectors are connected by the first bolt
Connect.
Flange connector is connected with holding out against an one end, and two hold out against an other end and fastened respectively with the first adapter sleeve, second
Set is fixedly connected, and is held out against seat and is provided with multiple screwed holes, screwed hole is provided with the second bolt.
Sensor outer barrel internal diameter is more than steel column external diameter 4mm.
The first deck is designed with sensor outer tube inner wall, sealing gasket is arranged on the first deck.
The second deck is designed with sealing pressure head inwall, small signals amplification device is arranged on the second deck.
The beneficial effects of the utility model are：The utility model, which realizes, can obtain stabilization, inspection regular, easy to identify
Signal is surveyed, and can be good at protecting piezoelectric ceramic piece, when pipeline has minor leakage, is also able to detect that resolution is high
Detection signal, and can ensure that device is brought into close contact with pressure fluid tubes outer surface, make the signal that detects more accurate,
Error in judgement is reduced when judging pipeline internal leakage detection and leakage point position.
Brief description of the drawings：
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is enlarged diagram at I in Fig. 1.
Embodiment：
As shown in Figure 1 and Figure 2, a kind of oil-gas pipeline leak source nondestructive testing instrument, including the first adapter sleeve 11 and the second adapter sleeve
12, after the first adapter sleeve 11 and the second adapter sleeve 12 closure among be the space of pipeline of being fastened, the first adapter sleeve 11
It is hinged with the one end of the second adapter sleeve 12, the first adapter sleeve 11 and the other end of the second adapter sleeve 12 are connected by the first bolt 14；The
Support base 1, the upper end of support base 1 connection sensor outer barrel 3, the connection sealing of the upper end of sensor outer barrel 3 are designed with one adapter sleeve 11
Pressure head 9, support base 1 is interior to set elastic ball 2, and the bottom of elastic ball 2 is stretched into inside the first adapter sleeve 11, and the top of elastic ball 2 is supported
Seat 1 is spacing, and the upper end of elastic ball 2 is provided with steel column 4 and contacted with the bottom of steel column 4, and steel column 4 is placed in sensor outer barrel 3 and can
Moved up and down in sensor outer barrel 3, the internal diameter of sensor outer barrel 3 is more than the external diameter 4mm of steel column 4, and the internal diameter of sensor outer barrel 3 is slightly larger than
The external diameter of steel column 4, vibrations and slip of the steel column 4 in sensor outer barrel 3 were both can guarantee that, and can also prevent steel column 4 in sensor outer barrel 3
Inside swing, avoid producing spurious signal.Flexible sheet 19, flexible sheet 19 and circular groove are set in the upper end circular groove 18 of steel column 4
Space is left at 18 bottom and top, and multiple elastic pearls 5 are equipped with flexible sheet 19, and piezoelectric ceramic piece 6 is placed on elastic pearl 5
Hold and be arranged on steel column 4, the first deck 16 is designed with the inwall of sensor outer barrel 3, sealing gasket 7 is arranged on the first deck 16
On.The top of sensor outer barrel 3 sets division board 8, seals and is designed with the second deck 17, small signals amplification device 10 on the inwall of pressure head 9
On the second deck 17.Small signals amplification device 10 is connected by signal wire with piezoelectric ceramic piece 6.
First adapter sleeve 11 and the second adapter sleeve 12 use thickness to be made up of 2~4mm steel plate, by by the first adapter sleeve
11 and second adapter sleeve 12 be arranged to sheet metal, sheet metal has certain elasticity and plasticity, can preferably and pressure fluid
Pipeline outer wall is brought into close contact.First adapter sleeve 11 and the other end of the second adapter sleeve 12 are equipped with flange connector 13, and two connections are convex
Edge 13 is connected by the first bolt 14, the first adapter sleeve 11 and the second adapter sleeve 12 is more easily carried out peace installation and dismantling
Unload.Flange connector 13 is connected with holding out against the one end of seat 20, two hold out against the other end of seat 20 respectively with the first adapter sleeve 11, second
Adapter sleeve 12 is fixedly connected, and is held out against seat 20 and is provided with multiple screwed holes, screwed hole is provided with the second bolt 15.First adapter sleeve
11 and second the position away from flange connector 13 on adapter sleeve 12, all can be with pressure fluid tubes due to the fastening of the first bolt 14
It is brought into close contact, certain gap is had between the position of neighbouring flange connector 13 and pressure fluid tubes, so setting here
Seat 20 is held out against, the second bolt 15 is set on seat 20 is held out against, by tightening the second bolt 15 by the neighbouring position of flange connector 13
First adapter sleeve 11 and the second adapter sleeve 12 are held out against, and it is brought into close contact with pressure fluid tubes outer wall, this makes it possible to ensure
First adapter sleeve 11 and 12 each position of the second adapter sleeve are brought into close contact with pressure fluid tubes outer surface, make the letter detected
Number more precisely, error in judgement is reduced when judging pipeline internal leakage detection and leakage point position.
Replace compression spring by using elastic ball 2, steel column 4, flexible sheet 19 and elastic pearl 5, flexible sheet 19 by
Elastic pearl 5 can be upspring during vibrations, elastic pearl 5 is constantly impacted piezoelectric ceramic piece 6, piezoelectric ceramic piece 6 is being under pressure
The impact endurance test shock that is brought by elastic pearl 5 while fluid line shakes, because elastic pearl 5 has multiple, and diameter very little, far
The remote impact degree for not reaching damage piezoelectric ceramic piece 6, but also piezoelectric ceramic piece 6 can be given stable, regular, easy to identify
Detection signal, it can be good at protecting piezoelectric ceramic piece 6；Elastic ball 2 has good elasticity and plasticity, when pressure fluid tubes have
During minor leakage, the microvibration of pressure fluid tubes can be caught by elastic ball 2, and small change occurs due to vibrations in elastic ball 2
Shape, elastic ball 2 can cause the internal memory of elastic ball 2 to be discharged into and elasticity in internal stress, the internal stress of elastic ball 2 due to micro-strain
On the steel column 4 that ball 2 contacts, because steel column 4 has very big rigidity, the meeting vertical tremor of steel column 4, promote elastic pearl 5 in flexible sheet
There is significant shock on 19, device is reached the detection signal for detecting that resolution is high.
It is understood that above with respect to specific descriptions of the present utility model, it is merely to illustrate the utility model and is not
The technical scheme described by the utility model embodiment is limited to, it will be understood by those within the art that, still can be with
The utility model is modified or equivalent substitution, to reach identical technique effect；As long as satisfaction uses needs, all in this reality
Within new protection domain.
Claims (7)
1. a kind of oil-gas pipeline leak source nondestructive testing instrument, including the first adapter sleeve (11) and the second adapter sleeve (12), the first fastening
It is the space for the pipeline that can be fastened, the first adapter sleeve (11) and second among after set (11) and the second adapter sleeve (12) closure
Adapter sleeve (12) one end is hinged, and the first adapter sleeve (11) and the second adapter sleeve (12) other end are connected by the first bolt (14)；
It is characterized in that：Support base (1) is designed with first adapter sleeve (11), support base (1) upper end connection sensor outer barrel (3), is passed
Sensor outer barrel (3) upper end connection sealing pressure head (9), support base (1) is interior to set elastic ball (2), and elastic ball (2) bottom stretches into first
Adapter sleeve (11) is internal, and elastic ball (2) top is spacing by support base (1), and elastic ball (2) upper end is provided with steel column (4) and and steel column
(4) bottom contacts, and steel column (4) is placed in sensor outer barrel (3) and can moved up and down in sensor outer barrel (3), steel column (4)
Flexible sheet (19) is set in upper end circular groove (18), flexible sheet (19) leaves space with the bottom of circular groove (18) and top,
Multiple elastic pearls (5) are equipped with flexible sheet (19), piezoelectric ceramic piece (6) is placed in elastic pearl (5) upper end and is arranged on steel column (4)
On, sensor outer barrel (3) inner upper end installation sealing gasket (7), sensor outer barrel (3) top sets division board (8), seals pressure head
(9) internal installation small signals amplification device (10), small signals amplification device (10) are connected by signal wire with piezoelectric ceramic piece (6).
2. according to the oil-gas pipeline leak source nondestructive testing instrument described in claim 1, it is characterised in that：First adapter sleeve (11)
Thickness is used to be made up of 2~4mm steel plate with the second adapter sleeve (12).
3. according to the oil-gas pipeline leak source nondestructive testing instrument described in claim 1, it is characterised in that：First adapter sleeve (11)
Flange connector (13) is equipped with the second adapter sleeve (12) other end, two flange connectors (13) are connected by the first bolt (14)
Connect.
4. according to the oil-gas pipeline leak source nondestructive testing instrument described in claim 3, it is characterised in that：The flange connector (13) with
Seat (20) one end is held out against to be connected, two hold out against seat (20) other end respectively with the first adapter sleeve (11), the second adapter sleeve (12)
It is fixedly connected, holds out against seat (20) and be provided with multiple screwed holes, screwed hole is provided with the second bolt (15).
5. according to the oil-gas pipeline leak source nondestructive testing instrument described in claim 1, it is characterised in that：The sensor outer barrel (3)
Internal diameter is more than steel column (4) external diameter 4mm.
6. according to the oil-gas pipeline leak source nondestructive testing instrument described in claim 1, it is characterised in that：The sensor outer barrel (3)
The first deck (16) is designed with inwall, sealing gasket (7) is arranged on the first deck (16).
7. according to the oil-gas pipeline leak source nondestructive testing instrument described in claim 1, it is characterised in that：In the sealing pressure head (9)
The second deck (17) is designed with wall, small signals amplification device (10) is arranged on the second deck (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720235743.6U CN206973276U (en) | 2017-03-13 | 2017-03-13 | Oil-gas pipeline leak source nondestructive testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720235743.6U CN206973276U (en) | 2017-03-13 | 2017-03-13 | Oil-gas pipeline leak source nondestructive testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206973276U true CN206973276U (en) | 2018-02-06 |
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ID=61414601
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720235743.6U Expired - Fee Related CN206973276U (en) | 2017-03-13 | 2017-03-13 | Oil-gas pipeline leak source nondestructive testing instrument |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763414A (en) * | 2019-11-15 | 2020-02-07 | 蔡钒钒 | Natural gas leakage detection system |
| CN112050854A (en) * | 2020-09-02 | 2020-12-08 | 中北大学 | Impact jet flow pressure vibration composite measurement device and impact jet flow pressure vibration composite measurement method |
| CN112524494A (en) * | 2019-09-19 | 2021-03-19 | 夏泰鑫半导体(青岛)有限公司 | Gas leakage detection device and gas pipeline connecting device |
| CN113375064A (en) * | 2021-06-16 | 2021-09-10 | 王诚宣 | Gas and liquid leakage detection sensor and method |
| CN117571194A (en) * | 2024-01-16 | 2024-02-20 | 山东中煤电器有限公司 | Sensing equipment for testing fluid pressure in pipeline |
-
2017
- 2017-03-13 CN CN201720235743.6U patent/CN206973276U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524494A (en) * | 2019-09-19 | 2021-03-19 | 夏泰鑫半导体(青岛)有限公司 | Gas leakage detection device and gas pipeline connecting device |
| CN110763414A (en) * | 2019-11-15 | 2020-02-07 | 蔡钒钒 | Natural gas leakage detection system |
| CN110763414B (en) * | 2019-11-15 | 2021-04-09 | 山西铭石煤层气利用股份有限公司 | Natural gas leakage detection system |
| CN112050854A (en) * | 2020-09-02 | 2020-12-08 | 中北大学 | Impact jet flow pressure vibration composite measurement device and impact jet flow pressure vibration composite measurement method |
| CN113375064A (en) * | 2021-06-16 | 2021-09-10 | 王诚宣 | Gas and liquid leakage detection sensor and method |
| CN117571194A (en) * | 2024-01-16 | 2024-02-20 | 山东中煤电器有限公司 | Sensing equipment for testing fluid pressure in pipeline |
| CN117571194B (en) * | 2024-01-16 | 2024-03-22 | 山东中煤电器有限公司 | Sensing equipment for testing fluid pressure in pipeline |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20190313 |