CN203400788U - Anti-falling and sealing structure for nozzle - Google Patents
Anti-falling and sealing structure for nozzle Download PDFInfo
- Publication number
- CN203400788U CN203400788U CN201320265589.9U CN201320265589U CN203400788U CN 203400788 U CN203400788 U CN 203400788U CN 201320265589 U CN201320265589 U CN 201320265589U CN 203400788 U CN203400788 U CN 203400788U
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- CN
- China
- Prior art keywords
- nozzle
- pressure cap
- cannelure
- pressing cap
- falling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
An anti-falling and sealing structure for a nozzle comprises a pressing cap and a nozzle. The inner wall of the pressing cap is provided with annular grooves I; annular grooves II are arranged in a corresponding position of the outer wall of the nozzle; annular passageways are formed after the pressing cap is assembled with the nozzle; one side of the pressing cap is provided with an injection hole connected through with each annular groove I; the other side of the pressing cap is provided with an exhaust vent connected through with each annular groove I; each annular passageway is filled with bonding glue liquid via each injection hole and then each injection hole and each exhaust vent are filled with the bonding glue liquid; and anti-falling rings formed after a spontaneous curing of the bonding glue liquid enable the nozzle to be combined with the pressing cap. The anti-falling and sealing structure for nozzle effectively solves a problem that the nozzle is easy to fall during the work of inverse well flushing; and the anti-falling and sealing structure for nozzle has simple manufacturing technology, reliable performance and low cost.
Description
Technical field
The utility model belongs to oil gas field waterpower and sprays fracturing work equipment technical field, is specifically related to a kind of anti-lost sealed-in nozzles structure.
Background technology
During hydraulic jetting fracturing operation, after having carried out hydraulic perforating, pressure break, sometimes need to carry out anti-flushing well operation.Pressure cap nozzle is originally to utilize the conical surface and fluid sealant to fix, when carrying out perforation and pressure break, nozzle and pressure cap under fluid pressure because the conical surface compresses, but when carrying out anti-flushing well operation, between nozzle and pressure cap, only have fluid sealant bonding, under fluid buffer brake, nozzle is very easy to drop.
Utility model content
The technical problem that the utility model solves: design a kind of anti-lost sealed-in nozzles structure, the nozzle problem that easily drops while efficiently solving anti-flushing well operation, and manufacturing process is simple, dependable performance, and cost is low.
The technical solution of the utility model: a kind of anti-lost sealed-in nozzles structure, comprise pressure cap and nozzle, on the inwall of described pressure cap, be shaped with cannelure I, on the outer wall of described nozzle, correspondence position is shaped with cannelure II, pressure cap and nozzle is assembled and between the latter two, form a circular passage; One side of described pressure cap has the hand-hole connecting with cannelure I, opposite side has the steam vent connecting with cannelure I, fixing glue fills up hand-hole and steam vent after hand-hole is filled with described circular passage again, and the anti-decylization forming after glue spontaneous curing combines nozzle and pressure cap.
Described cannelure I and cannelure II are semi-circular recesses, and pressure cap and nozzle being assembled and between the latter two, form a cross section is circular circular passage.
Described fixing glue is formulated by the acetone of 95% 6300 epoxide-resin glues and 5%.
The advantage the utlity model has and effect:
1. the anticreep rim bearing that the utility model forms after relying on resin glue to solidify is subject to reverse fluid pressure, stops dropping of nozzle, when anti-flushing well operation, can effectively prevent dropping of nozzle.
2. the utility model can provide effective auxiliary seal.Pressure cap in prior art and nozzle are to utilize the conical surface and fluid sealant to fix, and due to processing quality of fit and in assembling process, fluid sealant spraying inequality is with mobile, and the sealing reliability between pressure cap and the nozzle conical surface is poor, easily leaks.The utility model installs into rear high pressure by normal group anticreep fixing resin glue is injected to anticreep in-tank-solidification, to further sealing between pressure cap and the nozzle conical surface, has improved the reliability of sealing.
3. the utility model manufacturing process is simple, easy accessibility.The utility model keeps original structure substantially, only by inject anticreep fixing resin glue to anticreep groove mesohigh, realizes anti-lost and sealing function, and instrument is simple, easy to operate.Before dismounting, by special-purpose lytic agent, dissolve anticreep fixing resin, can complete dismounting by original technique.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with Fig. 1, a kind of embodiment of the present utility model is described.
A sealed-in nozzles structure, comprises pressure cap 1 and nozzle 2, is shaped with cannelure I 5 on the inwall of described pressure cap 1, and on the outer wall of described nozzle 2, correspondence position is shaped with cannelure II 6, pressure cap 1 and nozzle 2 is assembled between the latter two and form a circular passage 7; One side of described pressure cap 1 has the hand-hole 4 connecting with cannelure I 5, opposite side has the steam vent 8 connecting with cannelure I 5, fixing glue fills up hand-hole 4 and steam vent 8 after hand-hole 4 is filled with described circular passage 7 again, and the anti-decylization 3 forming after glue spontaneous curing combines nozzle 2 and pressure cap 1.Described fixing glue is formulated by the acetone of 95% 6300 epoxide-resin glues and 5%.
Described cannelure I 5 and cannelure II 6 are semi-circular recesses, and pressure cap 1 and nozzle 2 being assembled and between the latter two, form a cross section is circular circular passage.Anti-decylization 3 cross sectional shapes that form after glue spontaneous curing are naturally for circular, the faying face sealing by nozzle 2 with pressure cap 1, and circular configuration is good sealing effect but also have higher intensity not only.
The anti-decylization forming after fixing glue described in the utility model spontaneous curing can the high temperature of resistance to down-hole (200 ℃ following) through field trial and oil, water, sour corrosion, and have higher intensity.By test, the requirement of strength while meeting water-jet operation completely.Specifically the test intensity under condition of different temperatures is as follows:
| Temperature | Room temperature | 170℃ | 200℃ |
| Shear strength MPa | 18.0 | 7.0 | 6.0 |
The utility model is by changing the structure of pressure cap and nozzle, on the pressure cap position corresponding with nozzle, process slip-off preventing cannelure, normal group installs into rear high pressure anticreep fixing resin glue injection slip-off preventing in-tank-solidification is formed to anti-decylization, rely on anticreep rim bearing to be subject to reverse fluid pressure, not only can stop dropping of nozzle, but also there is better sealing function.The utility model, when anti-flushing well operation, can effectively prevent dropping of nozzle.The utility model dissolves anticreep fixing resin by acetone solution agent before dismounting, can complete dismounting by original technique.
Above-described embodiment, is preferred embodiment of the present utility model, is not used for limiting the utility model practical range, thus all equivalent variations of being done with content described in the utility model claim, within all should being included in the utility model claim scope.
Claims (2)
1. an anti-lost sealed-in nozzles structure, comprise pressure cap (1) and nozzle (2), it is characterized in that: on the inwall of described pressure cap (1), be shaped with cannelure I (5), on the outer wall of described nozzle (2), correspondence position is shaped with cannelure II (6), pressure cap (1) and nozzle (2) is assembled and between the latter two, form a circular passage (7); One side of described pressure cap (1) has the hand-hole (4) connecting with cannelure I (5), opposite side has the steam vent (8) connecting with cannelure I (5), fixing glue fills up hand-hole (4) and steam vent (8) after hand-hole (4) is filled with described circular passage (7) again, and the anti-decylization (3) forming after glue spontaneous curing combines nozzle (2) and pressure cap (1).
2. anti-lost sealed-in nozzles structure according to claim 1, it is characterized in that: described cannelure I (5) and cannelure II (6) are semi-circular recesses, pressure cap (1) and nozzle (2) being assembled and between the latter two, form a cross section is circular circular passage (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320265589.9U CN203400788U (en) | 2013-05-15 | 2013-05-15 | Anti-falling and sealing structure for nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320265589.9U CN203400788U (en) | 2013-05-15 | 2013-05-15 | Anti-falling and sealing structure for nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203400788U true CN203400788U (en) | 2014-01-22 |
Family
ID=49936731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320265589.9U Withdrawn - After Issue CN203400788U (en) | 2013-05-15 | 2013-05-15 | Anti-falling and sealing structure for nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203400788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252295A (en) * | 2013-05-15 | 2013-08-21 | 宝鸡市赛孚石油机械有限公司 | Anti-disengaging sealed nozzle structure |
-
2013
- 2013-05-15 CN CN201320265589.9U patent/CN203400788U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252295A (en) * | 2013-05-15 | 2013-08-21 | 宝鸡市赛孚石油机械有限公司 | Anti-disengaging sealed nozzle structure |
| CN103252295B (en) * | 2013-05-15 | 2015-07-08 | 宝鸡市赛孚石油机械有限公司 | Anti-disengaging sealed nozzle structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140122 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |