CN206636533U - Blowout prevention box - Google Patents
Blowout prevention box Download PDFInfo
- Publication number
- CN206636533U CN206636533U CN201720391997.7U CN201720391997U CN206636533U CN 206636533 U CN206636533 U CN 206636533U CN 201720391997 U CN201720391997 U CN 201720391997U CN 206636533 U CN206636533 U CN 206636533U
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- connector
- sealed packing
- blowout prevention
- sealing piston
- Prior art date
- 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.)
- Active
Links
Landscapes
- Gasket Seals (AREA)
Abstract
The preventer technical field of sealing or the packing of the soil layer well that either rock stratum is crept into or well is the utility model is related to, discloses a kind of blowout prevention box.The inside of the lower cylinder body of blowout prevention box is provided with sealed packing, and upper cylinder body is connected at the upper shed of lower cylinder body.The sealing piston of blowout prevention box is located inside upper cylinder body, and sealing piston bottom is stretched into inside lower cylinder body, and compresses the sealed packing inside lower cylinder body, and hydraulic pressure pumping hole is opened up between the upper sealed end of upper cylinder body on the upside of sealing piston.Annular protrusion is provided with the outer wall of sealing piston, return springs are provided between annular protrusion and lower cylinder body.It is fixedly connected between upper cylinder body and lower cylinder body by multiple connectors, sealed packing is provided with inside connector, the connector bottom of upside is stretched into inside the connector of downside, and compresses the sealed packing inside connector.The utility model realizes the seal degree of staff's far distance controlled blowout prevention box, reduces intensity of workers, improves staff's working environment.
Description
Technical field
It the utility model is related to the preventer technology neck of sealing or the packing of the soil layer well that either rock stratum is crept into or well
Domain, especially blowout prevention box.
Background technology
In the well testing of each elephant, generally use blowout prevention box seals to steel cable position, plays a part of blowout prevention.
In the prior art, the rotation being threadedly coupled between blowout prevention box generally use upper cylinder body and lower cylinder body, upper cylinder body is further threaded into
Inside lower cylinder body, so as to which the bottom of upper cylinder body compresses the sealed packing inside lower cylinder body, play a part of sealing.Make for a long time
During, when there is oil leak, staff needs manually further to tighten upper cylinder body and lower cylinder body.Tightening
Cheng Zhong, staff's rundown process labor intensity is big, and working environment is severe, serious inconvenience is brought to work progress, and drop
The low efficiency used.
Utility model content
The defects of sealed packing labor intensity is big, this reality are further compressed for blowout prevention box in the presence of above-mentioned background technology
It is as follows with new technical scheme：
On the one hand a kind of blowout prevention box is provided, including：Upper cylinder body and lower cylinder body, the inside of the lower cylinder body are provided with seal disc
Root, upper cylinder body is connected at the upper shed of the lower cylinder body, in addition to：Sealing piston, the sealing piston are located at the upper cylinder body
Inside, the sealing piston bottom is stretched into inside lower cylinder body, and compresses the sealed packing inside lower cylinder body, the sealing piston
Hydraulic pressure pumping hole is opened up between upside and the upper sealed end of upper cylinder body.
In a preferred embodiment, the hydraulic pressure pumping hole connecting bend, liquid is connected in the other end of the elbow
Press pump.
In a preferred embodiment, the outer wall of the sealing piston is provided with annular protrusion, is lived around the sealing
Wall beyond the Great Wall, return springs are provided between the annular protrusion and lower cylinder body.
In a preferred embodiment, in addition to：Connector, pass through multiple companies between the upper cylinder body and lower cylinder body
Joint is fixedly connected, and sealed packing is provided with inside the connector, and the connection of downside is stretched into the connector bottom of upside
Head is internal, and compresses the sealed packing inside connector.
In a preferred embodiment, the outer wall of the sealing piston is provided with annular protrusion, is lived around the sealing
Wall beyond the Great Wall, return springs are provided between the annular protrusion and connector.
In a preferred embodiment, in addition to：Overflow seat；The overflow seat is connected between the connector,
Overfall is opened up in the overflow seat side wall, and is turned on steel cable position hole.
In a preferred embodiment, the connector includes：Upper binding head, lower union joint and intermediate connector,
It is fixedly connected on the upside of the upper binding head with upper cylinder body, the sealing piston is extend into inside the upper binding head, and is compressed
Sealed packing inside connector；The upper binding head, intermediate connector and lower union joint are fixedly connected sequentially, and upper connection
Head bottom is stretched into inside the intermediate connector, and compresses the sealed packing inside intermediate connector, intermediate connector lower end
Portion is stretched into inside lower union joint, and compresses the sealed packing inside lower union joint；The lower union joint is fixedly connected with lower cylinder body,
The bottom of the lower union joint is stretched into inside lower cylinder body, and compresses the sealed packing inside lower cylinder body.
In a preferred embodiment, in addition to：Overflow seat；The overflow seat is located in the intermediate connector
Portion, the sealed packing under the overflow seat inside side compression intermediate connector, the upper binding head underpart opening, the opening
Size it is corresponding to the sealed packing size, the sealed packing inside the upper binding head is pressed on the upside of overflow seat, in institute
State and sealed packing inside upper binding head and lower union joint is compressed under the promotion of sealing piston, opened up in the overflow seat side wall excessive
Head piece, and turned on steel cable position hole.
Preferably, the return springs are compression spring.
A technical scheme in above-mentioned technical proposal has the advantages that：
Blowout prevention box of the present utility model, sealing piston is provided with the inside of upper cylinder body, sealing piston under the promotion of hydraulic pressure,
The sealed packing inside lower cylinder body is pushed, realizes the compression sealing to blowout prevention box inner sealing packing.Avoid in the prior art,
It can only realize that upper cylinder body compresses to the sealed packing inside lower cylinder body by turning upper cylinder body and lower cylinder body.The utility model is real
Show the seal degree of staff's far distance controlled blowout prevention box, reduced intensity of workers, improve staff's work
Environment.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of blowout prevention box in a kind of embodiment of the utility model；
Wherein, 1, upper cylinder body, 2, lower cylinder body, 3, sealed packing, 4, sealing piston, 41, annular protrusion, 5, hydraulic pressure pumping hole,
51st, elbow, 6, compression spring, 71, upper binding head, 72, intermediate connector, 73, lower union joint, 8, overflow seat, 81, overfall,
10th, sealing ring, 20, steel cable.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described,
Obviously, described embodiment is only the utility model part of the embodiment, rather than whole embodiments.Based on this practicality
Embodiment in new, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of the utility model protection.
As shown in figure 1, in an embodiment of the present utility model, a kind of blowout prevention box, including：Upper cylinder body 1 and lower cylinder body
2, the inside of lower cylinder body 2 is provided with sealed packing 3, and upper cylinder body 1 is connected at the upper shed of lower cylinder body 2.Blowout prevention box also includes：Sealing
Piston 4, sealing piston 4 are located at the inside of upper cylinder body 1, and the bottom of sealing piston 4 is stretched into inside lower cylinder body 2, and compresses lower cylinder body 2
Internal sealed packing 3, hydraulic pressure pumping hole 5 is opened up between the upside of sealing piston 4 and the upper sealed end of upper cylinder body.Using process
In, due to long-term use, it is necessary to when further being compressed to sealed packing 3, by connecting hydraulic pump, hydraulic pump in hydraulic pressure pumping hole 5
Input pressure oil, so as to crush seal piston 4, the bottom of sealing piston 4 pushes sealed packing 3, realizes the work further sealed
With.
In order to facilitate connection hydraulic pump, the easy installation and removal of hydraulic pump is realized, it is preferred that in the connecting bending of hydraulic pressure pumping hole 5
First 51, connect hydraulic pump in the other end of elbow 51.
In order to facilitate the resilience of sealing piston 4, avoid when blowout prevention box does not work for a long time, sealing piston 4 is for a long time to sealing
Packing 3 presses, so as to reduce the service life of sealed packing 3.Annular protrusion 41 is provided with the outer wall of sealing piston 4, around close
The outer wall of piston 4 is sealed, return springs are provided between annular protrusion 41 and lower cylinder body 2.
In order to ensure sealing effectiveness, sealing ring 10 is provided with the sealed end contact surface position of sealing piston 4 and upper cylinder body 1,
Sealing ring 10 is provided between the annular protrusion 41 and the inwall contact surface of upper cylinder body 1 of sealing piston 4, ensures hydraulic pump to upper cylinder body
When cavity injects pressure oil between 1 and sealing piston 4, sealing piston 4 is promoted, pressure oil is not revealed.
In order to further increase the quantity of sealed packing 3, sealing effectiveness is further ensured that.Upper cylinder body 1 and lower cylinder body 2 it
Between be fixedly connected by multiple connectors, be provided with sealed packing 3 inside connector, the connector bottom of upside stretch on the downside of
Inside connector, and compress the sealed packing 3 inside connector.Sealed packing 3, each seal disc are provided with inside multiple connectors
Root 3 is to the further sealing of blowout prevention box.
For the purposes of facilitating the resilience of sealing piston 4, annular protrusion 41 is provided with the outer wall of sealing piston 4, around sealing
The outer wall of piston 4, return springs are provided between annular protrusion 41 and connector.
In order in use, carry out preliminary discharge to the oil flowed out at the place hole of steel cable 20, avoid from blowout prevention box
Upside sprays.Overflow seat 8 is connected between connector, and overfall 81 is opened up in the side wall of overflow seat 8, and it is in place with the institute of steel cable 20
Put hole conducting.So that the oil of blowout prevention box is squeezed into blowout prevention box bottom, flow out, avoided in blowout prevention in the overfall 81 of overflow seat 8
Sprayed on the upside of box, increase the service life of blowout prevention box, reduce the requirement to the compression degree of sealed packing 3 on the upside of blowout prevention box.
Preferably, connector includes：Upper binding head 71, lower union joint 73 and intermediate connector 72, the upside of upper binding head 71
It is fixedly connected with upper cylinder body 1, sealing piston 4 is extend into inside upper binding head 71, and compresses the seal disc inside upper binding head 71
Root 3.Upper binding head 71, intermediate connector 72 and lower union joint 73 are fixedly connected sequentially, and the bottom of upper binding head 71 is stretched into
Inside intermediate connector 72, and the sealed packing 3 inside intermediate connector 72 is compressed, lower company is stretched into the bottom of intermediate connector 72
Inside joint 73, and compress the sealed packing 3 inside lower union joint 73.Lower union joint 73 is fixedly connected with lower cylinder body 2, lower connection
First 73 bottom is stretched into inside lower cylinder body 2, and compresses the sealed packing 3 inside lower cylinder body 2.Preferably, upper binding head 71, in
Between be once connected through a screw thread between connector 72 and lower union joint 73, facilitate staff to the close journey between connector
Degree is controlled, and is tightened before the use between regulation connector between degree, and connector and upper cylinder body or lower cylinder body
Tightness degree, so as to adjust the sealing effectiveness of blowout prevention box.
Preferably, overflow seat 8 is located inside intermediate connector 72, inside 8 times side compression intermediate connectors 72 of overflow seat
Sealed packing 3.The underpart opening of upper binding head 71, the size of opening is corresponding to the size of sealed packing 3, inside upper binding head 71
Sealed packing 3 is pressed on the upside of overflow seat 8, is compressed under the promotion of sealing piston 4 in upper binding head 71 and intermediate connector 72
The sealed packing 3 in portion, overfall 81 is opened up in the side wall of overflow seat 8, and turned on the position hole of steel cable 20.In sealing piston 4
In the presence of, the sealed packing 3 of overflow seat both sides about 8 is further compressed, improve sealing effectiveness.
Preferably, return springs are compression spring 6.The service life of compression spring 6 is grown, suitable for wanting for a variety of environment
Ask.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (9)
1. blowout prevention box, including：Upper cylinder body and lower cylinder body, the inside of the lower cylinder body are provided with sealed packing, the lower cylinder body it is upper
Opening connects upper cylinder body, it is characterised in that also includes：Sealing piston, the sealing piston are located inside the upper cylinder body, institute
State sealing piston bottom to stretch into inside lower cylinder body, and compress the sealed packing inside lower cylinder body, on the upside of the sealing piston with
Hydraulic pressure pumping hole is opened up between the upper sealed end of upper cylinder body.
2. blowout prevention box according to claim 1, it is characterised in that the hydraulic pressure pumping hole connecting bend, in the elbow
The other end connects hydraulic pump.
3. blowout prevention box according to claim 1, it is characterised in that the outer wall of the sealing piston is provided with annular protrusion, encloses
Around the sealing piston outer wall, return springs are provided between the annular protrusion and lower cylinder body.
4. blowout prevention box according to claim 1, it is characterised in that also include：Connector, the upper cylinder body and lower cylinder body it
Between be fixedly connected by multiple connectors, be provided with sealed packing inside the connector, the connector bottom of upside is stretched
Inside the connector for entering downside, and compress the sealed packing inside connector.
5. blowout prevention box according to claim 4, it is characterised in that the outer wall of the sealing piston is provided with annular protrusion, encloses
Around the sealing piston outer wall, return springs are provided between the annular protrusion and connector.
6. blowout prevention box according to claim 4, it is characterised in that also include：Overflow seat；The overflow seat is connected to described
Between connector, overfall is opened up in the overflow seat side wall, and turn on steel cable position hole.
7. blowout prevention box according to claim 4, it is characterised in that the connector includes：Upper binding head, lower union joint and
Intermediate connector, the upper binding head upside are fixedly connected with upper cylinder body, and the sealing piston is extend into the upper binding head
Portion, and compress the sealed packing inside upper binding head；The upper binding head, intermediate connector and lower union joint are fixed successively to be connected
Connect, and upper binding head bottom is stretched into inside the intermediate connector, and the sealed packing inside intermediate connector is compressed, in
Between connector bottom stretch into inside lower union joint, and compress the sealed packing inside lower union joint；The lower union joint is with
Cylinder body is fixedly connected, and the bottom of the lower union joint is stretched into inside lower cylinder body, and compresses the sealed packing inside lower cylinder body.
8. blowout prevention box according to claim 7, it is characterised in that also include：Overflow seat；The overflow seat be located at it is described in
Between inside connector, the sealed packing under the overflow seat inside side compression intermediate connector, the upper binding head bottom is opened
Mouthful, the size of the opening is corresponding to the sealed packing size, and the sealed packing inside the upper binding head is pressed on overflow
Seat upside, the sealed packing inside upper binding head and lower union joint is compressed under the promotion of the sealing piston, in the overflow
Seat side wall opens up overfall, and is turned on steel cable position hole.
9. the blowout prevention box according to claim 3 or 5, it is characterised in that the return springs are compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720391997.7U CN206636533U (en) | 2017-04-14 | 2017-04-14 | Blowout prevention box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720391997.7U CN206636533U (en) | 2017-04-14 | 2017-04-14 | Blowout prevention box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206636533U true CN206636533U (en) | 2017-11-14 |
Family
ID=60246358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720391997.7U Active CN206636533U (en) | 2017-04-14 | 2017-04-14 | Blowout prevention box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206636533U (en) |
-
2017
- 2017-04-14 CN CN201720391997.7U patent/CN206636533U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206636533U (en) | Blowout prevention box | |
| CN202417379U (en) | Novel polished rod sealing device for wellhead of oil pumping well | |
| CN205504251U (en) | Pressurization connects | |
| CN208703157U (en) | More packing seal structures of plug valve | |
| CN206668202U (en) | A kind of polished rod sealer | |
| CN206130393U (en) | Bend for oil drilling and oil exploitation | |
| CN201218070Y (en) | Well testing blowout preventer | |
| CN201236793Y (en) | Hydraulic valve cover or cylinder cap for high pressure drilling pump | |
| CN2337311Y (en) | Multi-function well head blow-out preventing box | |
| CN205605413U (en) | Valve -cover seal structure for bore hole pump | |
| CN202370467U (en) | Novel polished rod sealer | |
| CN217270110U (en) | Pumping unit wellhead anti-eccentric packing box | |
| CN206539726U (en) | A kind of ball valve with oilless bearing | |
| CN206091892U (en) | Polished rod device is traded in not kill -job | |
| CN201176860Y (en) | Packer sealing sleeve | |
| CN204754851U (en) | Wear -resisting packing box of tuningout | |
| CN208703156U (en) | The single nut squeezed seal structure of plug valve | |
| CN207297941U (en) | To pressing from both sides slim ball valve | |
| CN214946397U (en) | Top valve with replaceable sealing gasket in external field | |
| CN204942691U (en) | A kind of ball valve end cover structure | |
| CN210582501U (en) | Bulb tube sealing structure for medical X-ray machine | |
| CN215804449U (en) | High-pressure wear-resistant anti-corrosion automatic deviation-adjusting wellhead sealing device | |
| CN206376796U (en) | Wellhead sliding sealing device | |
| CN2522613Y (en) | Dynamic rubber-filling packing box for pumping unit | |
| CN204153191U (en) | A kind of pneumatic double valve plates wear-resistant sluice valve for dust medium runner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |