CN203097820U - Releasing mechanism and inner blowout preventer including same - Google Patents
Releasing mechanism and inner blowout preventer including same Download PDFInfo
- Publication number
- CN203097820U CN203097820U CN 201320052660 CN201320052660U CN203097820U CN 203097820 U CN203097820 U CN 203097820U CN 201320052660 CN201320052660 CN 201320052660 CN 201320052660 U CN201320052660 U CN 201320052660U CN 203097820 U CN203097820 U CN 203097820U
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- CN
- China
- Prior art keywords
- valve body
- push rod
- relieving mechanism
- spool
- blowout preventer
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- Expired - Fee Related
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Abstract
The utility model discloses a releasing mechanism and an inner blowout preventer including the same. The releasing mechanism comprises a first valve body, a mandril device, a releasing spray port and a handle. The mandril device is arranged inside the first valve body in an up-and-down movable mode, the releasing spray port is arranged on the first valve body, and the handle is arranged on the outer side of the first valve body. According to the releasing mechanism and the inner blowout preventer including the same, a valve core of the inner blowout preventer is placed at a pressure releasing position in the releasing mechanism, an orientation blowout prevention function is achieved, and the advantages of being simple in structure and convenient to use are achieved.
Description
Technical field
The utility model relates to a kind of drilling machinery, in particular, and the inner blowout preventer of particularly a kind of relieving mechanism and composition thereof.
Background technology
Inner blowout preventer is a blowout prevention instrument indispensable in the drilling process, well kick takes place when pulling out of hole, and then needs to use inner blowout preventer, and it can be drilling rod as much as possible G.I.H again, and this just can accomplish must a water booster system be arranged in drill string the time.And existing most of inner blowout preventers are structurally all taked the method by the direct blowout prevention of preventer itself, do not have directed blowout prevention function, and not only contaminated environment but also be unfavorable for the well site health also had danger, had particularly brought great inconvenience to the well site in the winter time.Therefore, the relieving mechanism that is necessary to design a kind of novel inner blowout preventer makes the inner blowout preventer prodigiosin enough have directed open flow function.
The utility model content
The purpose of this utility model is the technical problem at omnidirectional blowout prevention function in the prior art, and a kind of the have relieving mechanism of directed blowout prevention function and the inner blowout preventer of composition thereof are provided.
In order to solve problem set forth above, the technical solution adopted in the utility model is: a kind of relieving mechanism, it comprises first valve body, pin-lift arrangement, open flow mouth and handle, described pin-lift arrangement is movable up and down to be installed in first valve body, described open flow mouth is located on first valve body, and described handle is installed on first valve body outside.
Further, described pin-lift arrangement comprises first push rod and second push rod, and described first push rod is installed in first valve body, and described second push rod is installed on the first push rod lower end.
Further, also comprise first locking slot, second locking slot of being located on first push rod and the locking nut of being located at first valve body outside and matching with first locking slot or second locking slot.
Further, described first valve body is a bypass valve.
The utility model also provides a kind of inner blowout preventer of forming according to above-mentioned relieving mechanism, it comprises second valve body, and be located at valve seat and spool in second valve body, described valve seat is divided into upper cavity and lower chamber with second valve body, described spool has operating position and pressure off-position, when spool is in the operating position, and described upper cavity and lower chamber sealing, when spool was in the pressure off-position, described upper cavity was communicated with lower chamber; Described relieving mechanism is installed in the upper cavity of second valve body, and relieving mechanism is used to make spool to be in the pressure off-position.
Further, described second valve body is an arrow type flap valve.
Compared with prior art, the beneficial effects of the utility model are: the pin-lift arrangement movable up and down of employing relieving mechanism is in the pressure off-position with the spool of inner blowout preventer, make inner blowout preventer have the function of directed blowout prevention, the utility model also has simple in structure, the convenient advantage of using simultaneously.
Description of drawings
Fig. 1. be the relieving mechanism structural representation of inner blowout preventer of the present utility model.
Fig. 2. the structural representation of the inner blowout preventer of forming for relieving mechanism of the present utility model.
Description of reference numerals: 1, first push rod, 2, locking nut, 3, handle, 4, first valve body, 5, second push rod, 6, valve seat, 7, spool, 8, second valve body, 9, first locking slot, 10, second locking slot, 11, the open flow mouth, 12, upper cavity, 13, lower chamber.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Consult shown in Figure 1, the utility model provides a kind of relieving mechanism, it comprises first valve body 4, pin-lift arrangement, open flow mouth 11 and handle 3, described pin-lift arrangement is movable up and down to be installed in first valve body 4, described open flow mouth 11 is located on first valve body 4, and described handle 3 is installed on first valve body, 4 outsides.Wherein pin-lift arrangement comprises that first push rod 1 and second push rod, 5, the first push rods 1 are installed in first valve body 4, and second push rod 5 is installed on first push rod, 1 lower end, and promptly first push rod 1 and second push rod 5 can move up and down simultaneously.In addition, the utility model also comprises the locking nut 2 of being located at first locking slot 9, second locking slot 10 on first push rod 1 and being located at first valve body, 4 outsides and matching with first locking slot 9 or second locking slot 10, this moment locking nut 2 when cooperating with second locking slot 10 pin-lift arrangement be folding process, and locking nut 2 when cooperating with first locking slot 9 pin-lift arrangement move past journey on being.As preferably, first valve body 4 is a bypass valve.
Consult shown in Figure 2, it is the inner blowout preventer of forming according to above-mentioned relieving mechanism, it comprises second valve body 8, and be located at valve seat 6 and spool 7 in second valve body 8, valve seat 6 is divided into upper cavity 12 and lower chamber 13 with second valve body 8, and spool 7 has operating position and pressure off-position, when spool 7 is in the operating position, upper cavity 12 and lower chamber 13 sealings, when spool 7 was in the pressure off-position, upper cavity 12 was communicated with lower chamber 13; And relieving mechanism is installed in the upper cavity 12 of second valve body 8, and relieving mechanism is used to make spool 7 to be in the pressure off-position, is specially, and second push rod 5 of relieving mechanism is corresponding with the upper end of spool 7, that is: second push rod 5 and spool 7 coaxial lines; Wherein the section area of first push rod 1 is bigger, convenient control; And the section area of the section area of second push rod 5 and spool 7 is similar, and convenient second push rod 5 is corresponding with spool 7.As preferably, second valve body 8 is an arrow type flap valve.
Below by concrete job step to the relieving mechanism of present embodiment with and the inner blowout preventer formed be described further:
When in running order, the spool 7 of inner blowout preventer is subjected to drill string internal pressure upwards, makes spool 7 up, and forms sealing with valve seat 6, i.e. upper cavity 12 and lower chamber 13 sealings.When inner blowout preventer wants to discharge drill string pressure, need carry out release pressure by the relieving mechanism of present embodiment, that is: by buckleing on the handle 3, making second push rod be about to spool 7 for 5 times backs down, thereby spool 7 and valve seat 6 are broken away from, be that upper cavity 12 is communicated with lower chamber 13, make mud up, discharge by open flow mouth 11 at last.
Use the advantage of relieving mechanism of the present utility model and inner blowout preventer to be: compare with the method for the direct open flow in past and have directed open flow function, and more convenient, safer, reduce the environment pollution in well site and the cleaning of health; Simultaneously simple in structure, easy to operate.
The foregoing description is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (6)
1. relieving mechanism, it is characterized in that: comprise first valve body (4), pin-lift arrangement, open flow mouth (11) and handle (3), described pin-lift arrangement is movable up and down to be installed in first valve body (4), described open flow mouth (11) is located on first valve body (4), and described handle (3) is installed on first valve body (4) outside.
2. relieving mechanism according to claim 1, it is characterized in that: described pin-lift arrangement comprises first push rod (1) and second push rod (5), described first push rod (1) is installed in first valve body (4), and described second push rod (5) is installed on first push rod (1) lower end.
3. relieving mechanism according to claim 1 is characterized in that: the locking nut (2) that also comprises first locking slot (9), second locking slot of being located on first push rod (1) (10) and be located at first valve body (4) outside and match with first locking slot (9) or second locking slot (10).
4. according to each described relieving mechanism of claim 1-3, it is characterized in that: described first valve body (4) is a bypass valve.
5. inner blowout preventer of forming according to each described relieving mechanism of claim 1-3, it is characterized in that: comprise second valve body (8), and be located at valve seat (6) and spool (7) in second valve body (8), described valve seat (6) is divided into upper cavity (12) and lower chamber (13) with second valve body (8), described spool (7) has operating position and pressure off-position, when spool (7) when being in the operating position, described upper cavity (12) and lower chamber (13) sealing, when spool (7) was in the pressure off-position, described upper cavity (12) was communicated with lower chamber (13); Described relieving mechanism is installed in the upper cavity (12) of second valve body (8), and relieving mechanism is used to make spool (7) to be in the pressure off-position.
6. inner blowout preventer according to claim 5 is characterized in that: described second valve body (8) is an arrow type flap valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052660 CN203097820U (en) | 2013-01-20 | 2013-01-20 | Releasing mechanism and inner blowout preventer including same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052660 CN203097820U (en) | 2013-01-20 | 2013-01-20 | Releasing mechanism and inner blowout preventer including same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097820U true CN203097820U (en) | 2013-07-31 |
Family
ID=48849229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320052660 Expired - Fee Related CN203097820U (en) | 2013-01-20 | 2013-01-20 | Releasing mechanism and inner blowout preventer including same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203097820U (en) |
-
2013
- 2013-01-20 CN CN 201320052660 patent/CN203097820U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20150120 |
|
| EXPY | Termination of patent right or utility model |