CN205297460U - A festival oil flow mouth sub -assembly for fracturing well head choke valve - Google Patents
A festival oil flow mouth sub -assembly for fracturing well head choke valve Download PDFInfo
- Publication number
- CN205297460U CN205297460U CN201520947526.0U CN201520947526U CN205297460U CN 205297460 U CN205297460 U CN 205297460U CN 201520947526 U CN201520947526 U CN 201520947526U CN 205297460 U CN205297460 U CN 205297460U
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- oil nozzle
- seat
- positive
- positive choke
- well head
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Abstract
The utility model discloses a festival oil flow mouth sub -assembly for fracturing well head choke valve, first fixed oil valve spud adopts threaded connection choke valve valve body and second fixed oil valve spud, the glib talker fixes in second fixed oil valve spud through the adhesive, play the effect of throttle stationary flow, after the glib damage of being washed out, second fixed oil valve spud is backed out and the glib talker can be changed, avoid frequent change glib talker and damaged choke valve valve body screw thread, glib length is plentiful of the length of second fixed oil valve spud, can do not not corroded by effectual protection second fixed oil valve spud, thereby the life of extension festival oil flow mouth sub -assembly, moreover, the steam generator is simple in structure, the coating machine is easy to implement, and has a good application prospect.
Description
Technical field
This utility model relates to a kind of throttling oil nozzle molectron for fracture well head choke valve, belongs to oil gas winning apparatus technical field.
Background technology
According to user feedback and field investigation, fracture well head throttling oil nozzle many employings carbide inserts material of the same type used in oil field is made, at present, the oil nozzle that carbide inserts is made is all shorter, and length is within 70mm, and it is embedded in the inside of oil nozzle seat, causing whole throttling oil nozzle molectron erosion resistance ability, service life is short, it is necessary to often change, waste time and energy, make troubles to the construction operation of user.
Summary of the invention
The purpose of this utility model is that service life is short, it is necessary to often change, and makes troubles to the construction operation being applied to user of user in order to solve existing throttling oil nozzle molectron erosion resistance ability.
To achieve the above object, this utility model be the technical scheme is that
A kind of throttling oil nozzle molectron for fracture well head choke valve, it is characterised in that: include the first positive choke seat, the second positive choke seat, oil nozzle and O-ring seal;
Described first positive choke seat is flange outer-hexagonal nested structure, is provided with external screw thread in the middle part of its outer wall, and the top of inwall caves inward and forms the second positive choke seat limiting section, and inwall is additionally provided with female thread;
Described second positive choke seat is flange outer-hexagonal nested structure, its outer wall is provided with external screw thread, second positive choke seat is connected by the screw-internal thread fit of external screw thread and the first positive choke seat inwall, the outer wall of described second positive choke seat is provided with annular protrusion, and described annular protrusion is connected on the second positive choke seat limiting section;
Described oil nozzle is arranged on the inside of the second positive choke seat, is fluid course in oil nozzle;
It is provided with a circle elastomeric pad between described second positive choke seat and oil nozzle;
Described first positive choke seat inner and outer wall is equipped with sealing ring mounting groove, and described O-ring seal is arranged in sealing ring mounting groove.
Aforesaid a kind of throttling oil nozzle molectron for fracture well head choke valve, it is characterized in that: described first positive choke seat and the second positive choke seat material are 12Cr13 rustless steel, described oil nozzle material is hard alloy YT30, and described resilient pad material is 65Mn spring steel.
Aforesaid a kind of throttling oil nozzle molectron for fracture well head choke valve, it is characterised in that: the upper end of described oil nozzle extends card T-Ring laterally, and described card T-Ring is connected to and is arranged on the second positive choke seat inwall in the cannelure on edge.
Aforesaid a kind of throttling oil nozzle molectron for fracture well head choke valve, it is characterised in that: described elastomeric pad is bonded between the second positive choke seat and oil nozzle by binding agent.
Aforesaid a kind of throttling oil nozzle molectron for fracture well head choke valve, it is characterised in that: described binding agent is epoxy resin.
Aforesaid a kind of throttling oil nozzle molectron for fracture well head choke valve, it is characterised in that: described ring packing loop material is nitrile rubber.
Aforesaid a kind of throttling oil nozzle molectron for fracture well head choke valve, it is characterised in that: the length of described oil nozzle is not shorter than the length of the second positive choke seat.
The beneficial effects of the utility model are: the throttling oil nozzle molectron for fracture well head choke valve of the present utility model, first positive choke seat adopts threaded choke valve valve body and the second positive choke seat, oil nozzle is fixed in the second positive choke seat by binding agent, play the effect of throttling current stabilization, after oil nozzle is damaged by erosion, back out the second positive choke seat and replaceable oil nozzle, avoid and frequently change oil nozzle and damage choke valve valve body screw thread, the length of oil nozzle is not shorter than the length of the second positive choke seat, the second positive choke seat can be effectively protected be not corroded, thus extending the service life of throttling oil nozzle molectron, simple in construction, easily realize, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the throttling oil nozzle molectron for fracture well head choke valve of the present utility model.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is further described.
As it is shown in figure 1, a kind of throttling oil nozzle molectron for fracture well head choke valve, including first positive choke seat the 1, second positive choke seat 2, oil nozzle 4 and O-ring seal 5;
Described first positive choke seat 1 is flange outer-hexagonal nested structure, is provided with external screw thread in the middle part of its outer wall, and the top of inwall caves inward and forms the second positive choke seat limiting section, and inwall is additionally provided with female thread;
Described second positive choke seat 2 is flange outer-hexagonal nested structure, its outer wall is provided with external screw thread, second positive choke seat 2 is connected by the screw-internal thread fit of external screw thread and the first positive choke seat 1 inwall, the outer wall of described second positive choke seat 2 is provided with annular protrusion, and described annular protrusion is connected on the second positive choke seat limiting section;
Described oil nozzle 4 is arranged on the inside of the second positive choke seat 2, is fluid course in oil nozzle 4, and oil nozzle is designed to plurality of specifications, and aperture is incremented by with 2/64, to facilitate on-the-spot selection to use;
It is provided with a circle elastomeric pad 3 between described second positive choke seat 2 and oil nozzle 4, elastomeric pad 3 is bonded between the second positive choke seat 2 and oil nozzle 4 by binding agent, binding agent is epoxy resin, elastomeric pad 3 and binding agent combined effect, it is ensured that combine closely between the second positive choke seat 2 and oil nozzle 4;
Described first positive choke seat 1 inner and outer wall is equipped with sealing ring mounting groove, described O-ring seal 5 is arranged in sealing ring mounting groove, O-ring seal 5 material is nitrile rubber, O-ring seal is for sealing throttling valve body, gap between the first positive choke seat 1 and the second positive choke seat 2, prevent fluid from fleeing and part of damage with in its gap, extend part service life.
The material of the first positive choke seat 1 and the second positive choke seat 2 is 12Cr13 rustless steel, and the material of oil nozzle 4 is hard alloy YT30, and the material of described elastomeric pad 3 is 65Mn spring steel.
Described oil nozzle 4 length is not shorter than the second positive choke seat 2 length, and it is long-pending with the direct contact surface of fluid that the oil nozzle of lengthening decreases the second positive choke seat 2, it is prevented that the second oil nozzle seat 2, by fluid erosion, extends its service life.
In sum, throttling oil nozzle molectron for fracture well head choke valve of the present utility model, first positive choke seat adopts threaded choke valve valve body and the second positive choke seat, oil nozzle is fixed in the second positive choke seat by binding agent, play the effect of throttling current stabilization, after oil nozzle is damaged by erosion, back out the second positive choke seat and replaceable oil nozzle, avoid and frequently change oil nozzle and damage choke valve valve body screw thread, the length of oil nozzle is not shorter than the length of the second positive choke seat, the second positive choke seat can be effectively protected be not corroded, thus extending the service life of throttling oil nozzle molectron, simple in construction, easily realize, have a good application prospect.
Of the present utility model ultimate principle, principal character and advantage have more than been shown and described. Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements both fall within the scope of claimed this utility model. This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (7)
1. the throttling oil nozzle molectron for fracture well head choke valve, it is characterised in that: include the first positive choke seat (1), the second positive choke seat (2), oil nozzle (4) and O-ring seal (5);
Described first positive choke seat (1) is flange outer-hexagonal nested structure, is provided with external screw thread in the middle part of its outer wall, and the top of inwall caves inward and forms the second positive choke seat limiting section, and inwall is additionally provided with female thread;
Described second positive choke seat (2) is flange outer-hexagonal nested structure, its outer wall is provided with external screw thread, second positive choke seat (2) is connected by the screw-internal thread fit of external screw thread and the first positive choke seat (1) inwall, the outer wall of described second positive choke seat (2) is provided with annular protrusion, and described annular protrusion is connected on the second positive choke seat limiting section;
Described oil nozzle (4) is arranged on the inside of the second positive choke seat (2), is fluid course in oil nozzle (4);
It is provided with a circle elastomeric pad (3) between described second positive choke seat (2) and oil nozzle (4);
Described first positive choke seat (1) inner and outer wall is equipped with sealing ring mounting groove, and described O-ring seal (5) is arranged in sealing ring mounting groove.
2. a kind of throttling oil nozzle molectron for fracture well head choke valve according to claim 1, it is characterized in that: described first positive choke seat (1) and the second positive choke seat (2) material are 12Cr13 rustless steel, described oil nozzle (4) material is hard alloy YT30, and described elastomeric pad (3) material is 65Mn spring steel.
3. a kind of throttling oil nozzle molectron for fracture well head choke valve according to claim 1, it is characterized in that: the upper end of described oil nozzle (4) extends card T-Ring laterally, described card T-Ring is connected to and is arranged on the second positive choke seat (2) inwall in the cannelure on edge.
4. a kind of throttling oil nozzle molectron for fracture well head choke valve according to claim 1, it is characterised in that: described elastomeric pad (3) is bonded between the second positive choke seat (2) and oil nozzle (4) by binding agent.
5. a kind of throttling oil nozzle molectron for fracture well head choke valve according to claim 4, it is characterised in that: described binding agent is epoxy resin.
6. a kind of throttling oil nozzle molectron for fracture well head choke valve according to claim 1, it is characterised in that: described O-ring seal (5) material is nitrile rubber.
7. a kind of throttling oil nozzle molectron for fracture well head choke valve according to claim 1, it is characterised in that: the length of described oil nozzle (4) is not shorter than the length of the second positive choke seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947526.0U CN205297460U (en) | 2015-11-25 | 2015-11-25 | A festival oil flow mouth sub -assembly for fracturing well head choke valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947526.0U CN205297460U (en) | 2015-11-25 | 2015-11-25 | A festival oil flow mouth sub -assembly for fracturing well head choke valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297460U true CN205297460U (en) | 2016-06-08 |
Family
ID=56461499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520947526.0U Active CN205297460U (en) | 2015-11-25 | 2015-11-25 | A festival oil flow mouth sub -assembly for fracturing well head choke valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205297460U (en) |
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2015
- 2015-11-25 CN CN201520947526.0U patent/CN205297460U/en active Active
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