CN203626765U - Nozzle structure capable of preventing falling and inverse splashing - Google Patents
Nozzle structure capable of preventing falling and inverse splashing Download PDFInfo
- Publication number
- CN203626765U CN203626765U CN201320772119.1U CN201320772119U CN203626765U CN 203626765 U CN203626765 U CN 203626765U CN 201320772119 U CN201320772119 U CN 201320772119U CN 203626765 U CN203626765 U CN 203626765U
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- Prior art keywords
- nozzle
- gland
- groove
- inverse
- screw
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- Expired - Fee Related
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Abstract
The utility model discloses a nozzle structure capable of preventing falling and inverse splashing. The nozzle structure comprises a body (1), a gland (2), a nozzle (3) and a screw (4), wherein a groove (5) is formed in the outer wall of the body (1); a step hole (6) with large outside and small inside is formed in the center of the groove (5); the nozzle (3) is in interference assembly in the step hole (6); the bottom of the nozzle (3) is located on the step; the gland (2) is fixed to the groove (5) by the screw (4); a through hole (7) in the gland (2) corresponds to the inner diameter of the nozzle (3). According to the nozzle structure, the problems that the nozzle easily falls, and inverse splashing is caused during forward perforation when the inverse well flushing operation is carried out are effectively solved, the structure is simple, the performance is reliable, and the cost is low.
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 counnter attack spray-making valve structure.
Background technology
When hydraulic jetting fracturing operation, carrying out after hydraulic perforating, pressure break, sometimes needing to carry out anti-flushing well operation.Pressure cap structure is originally to utilize the conical surface and fluid sealant to fix nozzle, in the time carrying out forward perforation and pressure break, nozzle and pressure cap under fluid pressure because the conical surface compresses, but in the time 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.In addition, in the time of forward perforation, after current are mapped on casing wall, can backwash return hydrajet tool body to cause erosion, when serious, whole nozzle can be fallen from body erosion.
Utility model content
The technical problem that the utility model solves: design a kind of anti-lost counnter attack spray-making valve structure, the backwash problem while easily coming off with forward perforation while efficiently solving the operation of nozzle anti-flushing well, simple in structure, dependable performance, cost is low.
The technical solution of the utility model: a kind of anti-lost counnter attack spray-making valve structure, comprise body, gland, nozzle and screw, on the outer wall of described body, be shaped with groove, and the central authorities of groove are shaped with the stepped hole that outer imperial palace is little, nozzle interference is assemblied in stepped hole and its bottom is sitting on step; Gland is fixed by screws in groove and makes the through hole that has on gland corresponding with the internal diameter of nozzle.
On the external end head of described screw, be coated with wear-resisting Anti-erosion material.
The diameter of described through hole is a bit larger tham the internal diameter of nozzle.
Described gland adopts wear-resisting Anti-erosion material to make.
Backwash problem the utility model easily comes off with forward perforation while efficiently solving the operation of nozzle anti-flushing well time, simple in structure, dependable performance, cost is low.
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 kind of anti-lost counnter attack spray-making valve structure, comprises body 1, gland 2, nozzle 3 and screw 4.On the outer wall of described body 1, be shaped with groove 5, and the central authorities of groove 5 are shaped with the stepped hole 6 that outer imperial palace is little, nozzle 3 interference are assemblied in stepped hole 6 and its bottom is sitting on step; Gland 2 is fixed in groove 5 by screw 4 and makes the through hole 7 that has on gland 2 corresponding with the internal diameter of nozzle 3.On the external end head of described screw 4, be coated with wear-resisting Anti-erosion material 8.The diameter of described through hole 7 is a bit larger tham the internal diameter of nozzle 3.Described gland 2 adopts wear-resisting Anti-erosion material to make.
The utility model nozzle load hole and nozzle are interference fit, can guarantee that so enough intensity can also play good sealing function.Secondly; gland is fixed on and on body, pushes down nozzle; gland is wear-resisting Anti-erosion material (carbide alloy YG15); there is very high erosion wear resistance; the head of screw exposing also uses wear-resisting Anti-erosion material (carbide alloy YG15) to cover completely; can push down like this nozzle and prevent that nozzle drops in the time of forward perforating and fracturing, can also play good anti-backwash effect, effectively protect body.
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 (4)
1. an anti-lost counnter attack spray-making valve structure, comprise body (1), gland (2), nozzle (3) and screw (4), it is characterized in that: on the outer wall of described body (1), be shaped with groove (5), and the central authorities of groove (5) are shaped with the stepped hole that outer imperial palace is little (6), nozzle (3) interference is assemblied in stepped hole (6) and its bottom is sitting on step; Gland (2) is fixed in groove (5) by screw (4) and makes the through hole (7) that has on gland (2) corresponding with the internal diameter of nozzle (3).
2. anti-lost counnter attack spray-making valve structure according to claim 1, is characterized in that: on the external end head of described screw (4), be coated with wear-resisting Anti-erosion material (8).
3. anti-lost counnter attack spray-making valve structure according to claim 1 and 2, is characterized in that: the diameter of described through hole (7) is a bit larger tham the internal diameter of nozzle (3).
4. anti-lost counnter attack spray-making valve structure according to claim 3, is characterized in that: described gland (2) adopts wear-resisting Anti-erosion material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772119.1U CN203626765U (en) | 2013-11-27 | 2013-11-27 | Nozzle structure capable of preventing falling and inverse splashing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772119.1U CN203626765U (en) | 2013-11-27 | 2013-11-27 | Nozzle structure capable of preventing falling and inverse splashing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626765U true CN203626765U (en) | 2014-06-04 |
Family
ID=50813254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320772119.1U Expired - Fee Related CN203626765U (en) | 2013-11-27 | 2013-11-27 | Nozzle structure capable of preventing falling and inverse splashing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626765U (en) |
-
2013
- 2013-11-27 CN CN201320772119.1U patent/CN203626765U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 721013 hi tech nineteen Road, hi tech Zone, Shaanxi, Baoji Patentee after: BAOJI SAFE PETROLEUM MACHINERY Co.,Ltd. Address before: 721013 Shaanxi city of Baoji province high tech Zone Road No. nineteen Patentee before: BAOJI SAFE PETROLEUM MACHINERY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20211127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |