CN207673300U - Safety valve - Google Patents
Safety valve Download PDFInfo
- Publication number
- CN207673300U CN207673300U CN201721800012.8U CN201721800012U CN207673300U CN 207673300 U CN207673300 U CN 207673300U CN 201721800012 U CN201721800012 U CN 201721800012U CN 207673300 U CN207673300 U CN 207673300U
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- lost
- valve
- nut
- boom
- integral type
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Abstract
The utility model is related to helicoid hydraulic motor technical field more particularly to a kind of safety valves, including safe valve body, float valve, fixing nut, integral type strainer, waveform spring, baffle ring, anti-lost nut, anti-boom, the anti-lost pad of flow-guiding type；Valve opening is carried on the safe valve body, ladder platform is carried on the valve opening, the integral type strainer is loaded in ladder platform and is fixed with the baffle ring, float valve is mounted on the lower end of integral type strainer and is fixed by the nut, there are annular spaces between valve opening around float valve, and the waveform spring is arranged between float valve and the integral type strainer；Anti-boom is placed in the safe valve body, and the anti-lost nut is arranged in the front of anti-boom, and the anti-lost pad of the flow-guiding type is arranged between the anti-lost nut and the anti-boom.The utility model improves production safety coefficient, and reduce production cost, shortens anti-lost shell length, saved raw material by bypassing the integrated design in structure of valve body and anti-lost shell.
Description
Technical field
The utility model is related to helicoid hydraulic motor technical field more particularly to a kind of safety valves.
Background technology
In oil, geological drilling machinery field, usually used helicoid hydraulic motor, also known as fixed displacement motor are a kind of volumes
Formula mud motor.Due to a series of features of itself structure and aspect of performance, helicoid hydraulic motor has become in drillng operation
Indispensable drilling tool, it not only the directional well in oil, geological prospecting, geothermal well, coal-bed gas exploitation, horizontal well,
Particularly important effect is played in the special process such as extended reach well, multilateral well, cluster well, is passed through in drilling engineering in no-dig technique
Helicoid hydraulic motor is also bad ground and the preferred drilling tool of ground consisting of hard rock directional drilling.Helicoid hydraulic motor is by by-passing valve, anti-lost total
At, compositions such as motor assembly, universal axle assembly and driving-shaft assembly.By-passing valve is the accessory of helicoid hydraulic motor, its effect
That space in drill string is made to be connected to annular space in termination of pumping, to avoid make a trip and connect change single when drill string in drilling fluid overflow pollution
Rig floor influences to work normally.
The bypass valve body and anti-lost shell of original design structure are split structure (see Fig. 2), in Fig. 2：1. anti-lost company
Bar, 2. anti-lost nuts, 3. anti-lost shells, 4. screw threads, 5. bypass valve bodies, 6. by-passing valve valve pockets, 7. bypass valve cores, among 9.
Set, 10. seals with elastometic washer.Bypass both valve body and anti-lost shell be connected through a screw thread, once connection screw thread go wrong it is disconnected
It splits, fracture will directly fall well with lower part, cause drilling failure.
Utility model content
Purpose of the utility model is to overcome the shortcomings of the above technology, and to provide a kind of safety valves.
The utility model to achieve the above object, using following technical scheme：
A kind of safety valve, it is characterised in that：Including safe valve body, float valve, fixing nut, integral type strainer, waveform bullet
Spring, baffle ring, anti-lost nut, anti-boom, the anti-lost pad of flow-guiding type；Valve opening is carried on the safe valve body, is carried on the valve opening
Ladder platform, the integral type strainer are loaded in ladder platform and are fixed with the baffle ring, and float valve is mounted on the integral type strainer
Lower end and fixed by the nut, there are annular spaces between valve opening around float valve, in the float valve and described one
The waveform spring is set between body formula strainer；The anti-boom is placed in the safe valve body, the front setting of anti-boom
The anti-lost pad of the flow-guiding type is arranged in the anti-lost nut between the anti-lost nut and the anti-boom.
Preferably, the cross section of the float valve is in the shape of an " I ".
Preferably, the cross section of the integral type strainer is in T-shaped, and upper part carries via.
Preferably, the ring week of the anti-lost pad of the flow-guiding type carries several U-lags.
The utility model has the beneficial effects that:1. compared with prior art, the utility model by bypass valve body and
The integrated design in structure of anti-lost shell not only overcomes connection screw thread and goes wrong fracture, and fracture will be straight with lower part
The problem of connecing and fall well, causing production accident improves production safety coefficient, and reduces production cost, shortens anti-lost shell
Body length has saved raw material；
2. waveform spring is arranged in safe valve body and float valve, integral type strainer, it is fixed nut under waveform spring and float valve,
Make that relative motion is not present between the two, this structure design can make safety valve inner body wall not have to chromium plating again, save life
Produce cost.
3. being provided with the anti-lost pad of flow-guiding type between anti-boom and anti-lost nut, this structure overcomes in the past in lower thread
After being broken with shell, anti-lost nut is contacted with safety valve ontology end face, suppresses bad slush pump；Lower thread is broken again with shell
It splits, the anti-lost pad of flow-guiding type touches safe valve body endoporus end face, and to react pump pressure very high, but not suppresses pump, is conducive to driller's
Judge in time, avoids suppressing bad drilling equipment, the increase of the anti-lost pad of flow-guiding type also greatly increases falling-proof apparatus anti-offability, the structure
It has been subjected to users' favorable comment.
4. using completely new float valve+wave spring formula bypass system, remove spool, valve pocket, it is empty to release safe valve body completely
Between, processing it is more convenient, assemble, repair it is simpler.
5. using completely new anti-lost system, avoids since pervious by-passing valve pin thread is broken, cause down-hole accident.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the enlarged drawing at F in Fig. 1；
Fig. 3 is the stereogram of integral type strainer in the utility model；
Fig. 4 is the structural schematic diagram of the anti-lost pad of flow-guiding type in the utility model；
Fig. 5 is the structural schematic diagram of the prior art.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment of the present utility model is described in detail in preferred embodiment.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indicates or imply and is signified
Device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this practicality
Novel limitation.
As shown in Figure 1, a kind of safety valve, including safe valve body 1, float valve 2, fixing nut 3, integral type strainer 4, waveform
The anti-lost pad of spring 5, baffle ring 6, anti-lost nut 7, anti-boom 8, flow-guiding type 9；Valve opening, the valve opening are carried on the safe valve body
Upper to carry ladder platform, the integral type strainer is loaded in ladder platform and is fixed with the baffle ring, the cross of the integral type strainer
Section is in T-shaped, and upper part carries via 10.Float valve is mounted on the lower end of the integral type strainer and is consolidated by the nut
Fixed, the cross section of the float valve is in the shape of an " I ".There are annular space 11 between valve opening around float valve, the float valve with
The waveform spring is set between the integral type strainer；The anti-boom is placed in the safe valve body, before anti-boom
The anti-lost nut is arranged in portion, and the anti-lost pad of the flow-guiding type is arranged between the anti-lost nut and the anti-boom.
Safety valve operation principle and function：
1. safety valve has bypass and closes two positions, it is in bypass position in trip-out operation process, makes mud in drill string
Slurry flows into annular space through valve port, and mud does not overflow on raised platform around a well when making a trip in this way, and when lower brill, mud enters brill through valve port in annular space
It is poor to reduce drill string external and internal pressure for column.
When mud flow rate and pressure reach typical set value, float valve moves down, and closes integral type strainer valve opening, at this time mud
Motor is flowed through, the hydraulic energy of mud is made to be transformed into mechanical energy.
When mud stream magnitude is too small or termination of pumping makes up a joint, generated insufficient pressure is to overcome wave spring force and stiction
When, wave spring makes spool top reset, and integral type strainer by-pass prot is in the open position again.
2. safe valve action：When causing shell fracture due to abnormal cause, thread off, anti-lost effect is played；Make pump simultaneously
Pressure increases, and will not suppress pump, not influence drilling tubing equipment, (routinely anti-lost system can influence drilling tubing equipment), make ground and
When pinpoint the problems and avoid causing down-hole accident.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (4)
1. a kind of safety valve, it is characterised in that：Including safe valve body, float valve, fixing nut, integral type strainer, waveform spring,
Baffle ring, anti-lost nut, anti-boom, the anti-lost pad of flow-guiding type；Valve opening is carried on the safe valve body, and ladder is carried on the valve opening
Platform, the integral type strainer are loaded in ladder platform and are fixed with the baffle ring, and float valve is mounted under the integral type strainer
It holds and is fixed by the nut, there are annular spaces between valve opening around float valve, in the float valve and the integral type
The waveform spring is set between strainer；The anti-boom is placed in the safe valve body, described in the front setting of anti-boom
The anti-lost pad of the flow-guiding type is arranged in anti-lost nut between the anti-lost nut and the anti-boom.
2. safety valve according to claim 1, it is characterised in that：The cross section of the float valve is in the shape of an " I ".
3. safety valve according to claim 1, it is characterised in that：The cross section of the integral type strainer in T-shaped,
Top carries via.
4. safety valve according to claim 1, it is characterised in that：The ring week of the anti-lost pad of flow-guiding type carries several U
Shape slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721800012.8U CN207673300U (en) | 2017-12-21 | 2017-12-21 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721800012.8U CN207673300U (en) | 2017-12-21 | 2017-12-21 | Safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207673300U true CN207673300U (en) | 2018-07-31 |
Family
ID=62969613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721800012.8U Active CN207673300U (en) | 2017-12-21 | 2017-12-21 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207673300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019170A (en) * | 2017-12-21 | 2018-05-11 | 天津立林石油机械有限公司 | Safety valve |
| CN110454082A (en) * | 2019-09-11 | 2019-11-15 | 中石化石油工程技术服务有限公司 | A kind of helicoid hydraulic motor emergency stop device |
-
2017
- 2017-12-21 CN CN201721800012.8U patent/CN207673300U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019170A (en) * | 2017-12-21 | 2018-05-11 | 天津立林石油机械有限公司 | Safety valve |
| CN110454082A (en) * | 2019-09-11 | 2019-11-15 | 中石化石油工程技术服务有限公司 | A kind of helicoid hydraulic motor emergency stop device |
| CN110454082B (en) * | 2019-09-11 | 2024-03-26 | 中石化石油工程技术服务有限公司 | Emergency stop device for screw drilling tool |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |