CN215169871U

CN215169871U - Sealing device for Christmas tree

Info

Publication number: CN215169871U
Application number: CN202121262744.2U
Authority: CN
Inventors: 王庆东
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-14
Anticipated expiration: 2031-06-08

Abstract

The utility model provides a sealing device for production tree. Sealing device for production tree includes: a Christmas tree; the upper flange is arranged on the Christmas tree; a lower flange disposed on the Christmas tree; the connecting through holes are respectively formed in the tops of the upper flange and the lower flange and are matched with each other; the connecting bolts are respectively arranged in the connecting through holes; the positioning clamping ring grooves are respectively formed in the outer walls of the connecting bolts; and the avoidance grooves are respectively arranged on the inner walls of the connecting through holes. The utility model provides a sealing device for production tree has easy operation, advantage that the protecting effect is good.

Description

Sealing device for Christmas tree

Technical Field

The utility model relates to a production tree technical field especially relates to a sealing device for production tree.

Background

The Christmas tree is a wellhead device for exploiting petroleum, such as a self-blowing well, a mechanical oil production well and the like, is main equipment for controlling and adjusting oil and gas production at the uppermost part of an oil and gas well, and mainly comprises a casing head, a tubing head and a Christmas tree body.

In the connection of each component element of production tree, adopt the flange to connect mostly, and connect through a plurality of bolts and a plurality of nut between two flanges again, nowadays, the production tree is generally all installed in the open air, and the production tree generally fights and is located some relatively poor environment, stand the invasion and attack back of wind and rain for a long time, lead to being connected between bolt and the nut to appear the corrosion easily, then appear not hard up phenomenon, just so make to connect between two flanges and appear the gap easily, thereby influence the leakproofness between each component element of production tree.

Therefore, it is necessary to provide a sealing device for a christmas tree to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide an easy operation, the sealing device for production tree that protecting effect is good.

In order to solve the technical problem, the utility model provides a sealing device for production tree, include: a Christmas tree; the upper flange is arranged on the Christmas tree; a lower flange disposed on the Christmas tree; the connecting through holes are respectively formed in the tops of the upper flange and the lower flange and are matched with each other; the connecting bolts are respectively arranged in the connecting through holes; the positioning clamping ring grooves are respectively formed in the outer walls of the connecting bolts; the avoidance grooves are respectively formed in the inner walls of the connection through holes; the arc-shaped clamping blocks are respectively and slidably mounted on the inner walls of the two sides of the avoidance grooves, and one side of each arc-shaped clamping block extends into the corresponding positioning clamping ring groove; the threaded holes are formed in the outer wall of the lower flange; and the connecting bolts are rotatably arranged on the outer walls of the arc-shaped clamping blocks respectively, and the other ends of the connecting bolts penetrate through the threaded holes respectively and are in threaded connection with the threaded holes respectively.

Preferably, the inner wall of the bottom of the upper flange is fixedly provided with a rubber sealing ring, the inner wall of the top of the lower flange is provided with an annular sealing groove, and the rubber sealing ring is matched with the annular sealing groove.

Preferably, a plurality of the bottom of connecting pin all is provided with the external screw thread, the bottom of lower flange is provided with a plurality of nuts, and is a plurality of the nut with a plurality of external screw thread threaded connection.

Preferably, the connecting bolt is provided with a spring, one end of the spring is fixedly connected with the outer wall of one side of the arc-shaped clamping block, and the other end of the spring is fixedly connected with the inner wall of one side of the avoiding groove.

Preferably, a plurality of grooves are formed in the outer wall of the lower flange, the connecting bolt is far away from the arc-shaped clamping block, one end of the arc-shaped clamping block extends to the inside of each groove, the inner hexagonal nut head is arranged in each groove, and the outer wall of one side of the inner hexagonal nut head is fixedly connected with one end of the connecting bolt.

Preferably, the outer wall of the Christmas tree is fixedly provided with a connection block, the top of the connection block is fixedly provided with a fixed rod, and the fixed rod is rotatably provided with two protection frames.

Preferably, two arc avoidance through grooves are formed in the outer walls of the two sides of the protection frame, and four arc avoidance through grooves are respectively matched with the outer walls of the upper flange and the lower flange.

Compared with the prior art, the utility model provides a sealing device for production tree has following beneficial effect:

the utility model provides a sealing device for production tree can make sealing connection between upper flange and the lower flange through rubber seal and ring seal groove, can carry out zonulae occludens to upper flange and lower flange through a plurality of connecting bolt and a plurality of nut, can guarantee the connection compactness between connecting bolt and the lower flange through locator card annular and arc fixture block, guaranteed the connection leakproofness between upper flange and the lower flange then, avoid because of the outer screw thread on nut and the connecting bolt should lead to appearing the gap between upper flange and the lower flange for the corrosion.

Drawings

Fig. 1 is a schematic front view of a first embodiment of a sealing device for a christmas tree according to the present invention;

fig. 2 is a schematic view of a connection structure of an upper flange and a lower flange in a first embodiment of the sealing device for the christmas tree according to the present invention;

FIG. 3 is an enlarged schematic view of portion A shown in FIG. 2;

fig. 4 is a schematic structural view of a connecting plug and an arc-shaped fixture block in a first embodiment of the sealing device for the christmas tree according to the present invention;

fig. 5 is a schematic front view of a second embodiment of the sealing device for the christmas tree according to the present invention;

fig. 6 is a schematic structural view of a protection frame in a second embodiment of the sealing device for the christmas tree according to the present invention;

fig. 7 is a schematic view of a connection structure between the protection frame and the fixing rod 2 in the second embodiment of the sealing device for the christmas tree according to the present invention.

Reference numbers in the figures: 1. a Christmas tree; 2. an upper flange; 3. a lower flange; 4. a connecting through hole; 5. connecting a bolt; 6. positioning the snap ring groove; 7. an avoidance groove; 8. an arc-shaped fixture block; 9. a threaded hole; 10. a connecting bolt; 11. a joining block; 12. fixing the rod; 13. a protective frame; 14. avoiding the through groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

First embodiment

Referring to fig. 1-4, in a first embodiment of the present invention, a sealing device for a christmas tree comprises: a Christmas tree 1; the upper flange 2 is arranged on the Christmas tree 1; the lower flange 3 is arranged on the Christmas tree 1, and the connection of the components of the Christmas tree 1 is realized through the upper flange 2 and the lower flange 3; the connecting through holes 4 are respectively formed in the tops of the upper flange 2 and the lower flange 3, and the connecting through holes 4 are matched with each other; the connecting bolts 5 are respectively arranged in the connecting through holes 4, and the upper flange 2 and the lower flange 3 are fixedly connected through the connecting through holes 4 and the connecting bolts 5; the positioning clamping ring grooves 6 are formed in the outer walls of the connecting bolts 5 respectively; the avoidance grooves 7 are respectively formed in the inner walls of the connection through holes 4, and the arc-shaped fixture block 8 is convenient to avoid the connection plug pins 5; the arc-shaped fixture blocks 8 are respectively and slidably mounted on the inner walls of the two sides of the avoidance grooves 7, one sides of the arc-shaped fixture blocks 8 respectively extend into the positioning clamp ring grooves 6, and the connecting plug pins 5 can be reinforced through the arc-shaped fixture blocks 8 and the positioning clamp ring grooves 6; the threaded holes 9 are formed in the outer wall of the lower flange 3; a plurality of connecting bolt 10, it is a plurality of connecting bolt 10 rotates respectively the installation a plurality of on the outer wall of arc fixture block 8, and is a plurality of connecting bolt 10's the other end runs through a plurality ofly respectively screw hole 9 and respectively with a plurality of screw hole 9 threaded connection can adjust arc fixture block 8 through screw hole 9 and connecting bolt 10.

In order to enable the upper flange 2 and the lower flange 3 to have sealing performance, a rubber sealing ring is fixedly mounted on the inner wall of the bottom of the upper flange 2, an annular sealing groove is formed in the inner wall of the top of the lower flange 3, and the rubber sealing ring is matched with the annular sealing groove.

In order to enable the upper flange 2 and the lower flange 3 to be tightly connected, the bottom ends of the plurality of connecting pins 5 are provided with external threads, the bottom of the lower flange 3 is provided with a plurality of nuts, and the plurality of nuts are in threaded connection with the plurality of external threads.

In order to enable the arc-shaped clamping block 8 and the positioning clamping ring groove 6 to be tightly connected, a spring is arranged on the connecting bolt 10, one end of the spring is fixedly connected with the outer wall of one side of the arc-shaped clamping block 8, and the other end of the spring is fixedly connected with the inner wall of one side of the avoiding groove 7.

Make things convenient for operating personnel to rotate connecting bolt 10 through the hexagonal spanner, a plurality of recesses have been seted up on the outer wall of lower flange 3, and is a plurality of connecting bolt 10 is kept away from the one end of ARC card block 8 extends to a plurality of respectively in the recess, it is a plurality of all be provided with interior hexagon nut head in the recess, one side outer wall of interior hexagon nut head with connecting bolt 10's one end fixed connection.

In this embodiment:

during the use, contact the bottom of upper flange 2 and the top of lower flange 3, make rubber seal extend to the ring seal inslot, can accomplish sealing between upper flange 2 and the lower flange 3 like this, later insert a plurality of connecting bolt 5 respectively in a plurality of connect the via hole 4 and carry out the thread tightening through a plurality of nuts to the bottom of a plurality of connecting bolt 5, can make zonulae occludens between upper flange 2 and the lower flange 3 like this, and the installation is accomplished the back, can rotate a plurality of connecting bolt 10 respectively and promote a plurality of arc fixture block 8 respectively and remove, make a plurality of arc fixture block 8 extend to respectively in a plurality of location snap ring grooves 6, can consolidate a plurality of connecting bolt 5 like this, guarantee the leakproofness between upper flange 2 and the lower flange 3 then.

can make sealing connection between upper flange 2 and the lower flange 3 through rubber seal and ring seal groove, can carry out zonulae occludens to upper flange 2 and lower flange 3 through a plurality of connecting pin 5 and a plurality of nut, can guarantee the connection compactness between connecting pin 5 and the lower flange 3 through locator card annular 6 and arc fixture block 8, guaranteed the connection leakproofness between upper flange 2 and the lower flange 3 then, avoid because of the nut should lead to appearing the gap between upper flange 2 and the lower flange 3 for the corrosion with the external screw thread on the connecting pin 5.

Second embodiment:

based on the sealing device for the Christmas tree provided by the first embodiment of the application, the second embodiment of the application provides another sealing device for the Christmas tree. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments.

Referring to fig. 5-6, the sealing device for the christmas tree further includes a connection block 11, the connection block 11 is fixedly installed on the christmas tree 1, a fixing rod 12 is fixedly installed at the top of the connection block 11, two protection frames 13 are supported by the connection block 11 and the fixing rod 12, two protection frames 13 are rotatably installed on the fixing rod 12, and the upper flange 2 and the lower flange 3 can be protected by the two protection frames 13.

In order to facilitate the avoidance of the upper flange 2 and the lower flange 3 by the two protection frames 13, arc avoidance through grooves 14 are formed in the outer walls of the two sides of the two protection frames 13, and the four arc avoidance through grooves 14 are respectively matched with the outer walls of the upper flange 2 and the lower flange 3.

In this embodiment:

can protect upper flange 2, lower flange 3, a plurality of connecting pin 5 and a plurality of nut through two protecting frame 13, reduce a plurality of connecting pin 5 and a plurality of nut and receive external factor influence and corrosion, prolong the life of connecting pin 5 and nut, guarantee the connection leakproofness of upper flange 2 and lower flange 3 then.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A sealing device for a Christmas tree, comprising:

a Christmas tree;

the upper flange is arranged on the Christmas tree;

a lower flange disposed on the Christmas tree;

the connecting through holes are respectively formed in the tops of the upper flange and the lower flange and are matched with each other;

the connecting bolts are respectively arranged in the connecting through holes;

the positioning clamping ring grooves are respectively formed in the outer walls of the connecting bolts;

the avoidance grooves are respectively formed in the inner walls of the connection through holes;

the arc-shaped clamping blocks are respectively and slidably mounted on the inner walls of the two sides of the avoidance grooves, and one side of each arc-shaped clamping block extends into the corresponding positioning clamping ring groove;

the threaded holes are formed in the outer wall of the lower flange;

and the connecting bolts are rotatably arranged on the outer walls of the arc-shaped clamping blocks respectively, and the other ends of the connecting bolts penetrate through the threaded holes respectively and are in threaded connection with the threaded holes respectively.

2. The sealing device for the Christmas tree of claim 1, wherein a rubber sealing ring is fixedly installed on the inner wall of the bottom of the upper flange, an annular sealing groove is formed on the inner wall of the top of the lower flange, and the rubber sealing ring is matched with the annular sealing groove.

3. The sealing device for Christmas trees of claim 1, wherein the bottom ends of the plurality of connecting pins are provided with external threads, the bottom of the lower flange is provided with a plurality of nuts, and the plurality of nuts are in threaded connection with the plurality of external threads.

4. The sealing device for Christmas trees of claim 1, wherein the connecting bolt is provided with a spring, one end of the spring is fixedly connected with the outer wall of one side of the arc-shaped clamping block, and the other end of the spring is fixedly connected with the inner wall of one side of the avoiding groove.

5. The sealing device for the Christmas tree of claim 1, wherein a plurality of grooves are formed in the outer wall of the lower flange, one ends of the connecting bolts, which are far away from the arc-shaped clamping block, respectively extend into the plurality of grooves, inner hexagon nut heads are arranged in the plurality of grooves, and the outer wall of one side of each inner hexagon nut head is fixedly connected with one end of the connecting bolt.

6. The sealing device for Christmas trees of claim 1, wherein the outer wall of the Christmas tree is fixedly provided with a joint block, the top of the joint block is fixedly provided with a fixing rod, and the fixing rod is rotatably provided with two protective frames.

7. The sealing device for the Christmas tree of claim 6, wherein the two side outer walls of the two protection frames are provided with arc-shaped avoiding through grooves, and the four arc-shaped avoiding through grooves are respectively matched with the outer walls of the upper flange and the lower flange.