Christmas tree heat preservation device

Abstract

The utility model discloses a Christmas tree heat preservation device which comprises a heat preservation cylinder body, the heat preservation cylinder body comprises a main cylinder body and a supporting arm cylinder body, the main cylinder body comprises a left front shell, a right front shell and a rear shell, a first receding hole is formed in the front face of the main cylinder body, and the first receding hole is composed of a semicircular hole of the left front shell and a semicircular hole of the right front shell; the supporting arm cylinder comprises an upper shell and a lower shell, a second avoiding hole is formed in the front face of the supporting arm cylinder, and the second avoiding hole is composed of a semicircular hole of the upper shell and a semicircular hole of the lower shell; according to the Christmas tree heat preservation device, through the detachable structure of the main barrel body and the supporting arm barrel body, the first receding hole and the second receding hole are formed in the mode that the semicircular holes are in butt joint, when the heat preservation barrel body is disassembled and assembled, a rotary disc of a valve does not need to be disassembled, operation is convenient and fast, and personnel can conveniently achieve rapid disassembly and assembly of the heat preservation barrel body on a Christmas tree.

Description

Technical Field

[0001] The utility model relates to an oil production tree heat preservation device. Background Technique

[0002] An oil production tree is a wellhead device used for oil production in flowing wells and rod pumped wells, etc. It is the main equipment for controlling and regulating oil and gas production at the uppermost part of an oil and gas well, mainly composed of a casing head, a tubing head, and an oil (gas) production tree body. Usually in cold seasons, in order to ensure the smooth operation of the oil production tree, heat preservation of the oil production tree is required.

[0003] After retrieval, a patent with the application number 202220382924.2 discloses an oil production tree heat preservation device, which includes a front shell and a rear shell. The front shell is arranged on the front side of the rear shell. Connecting supports and mounting seats are arranged at the edge positions of the front shell and the rear shell. First sealing sleeves are sleeved and fixed at the end positions of the transverse arms of the front shell and the rear shell, and second sealing sleeves are sleeved and fixed at the end positions of the vertical arms of the front shell and the rear shell. Heating pads are fixedly connected to the inner side walls of the front shell and the rear shell. By fixing the front shell and the rear shell on the oil production tree and energizing the heating pads for heating, the oil production tree can be heated and insulated.

[0004] However, during actual use, the applicant found that a valve avoidance hole is provided on the front surface of the front shell, and the valve avoidance hole is adapted to the valve stem of the valve. When the heat preservation device needs to be disassembled and assembled every year, the turntable of the valve needs to be disassembled to disassemble and assemble the heat preservation device, which is troublesome to operate, and the gap between the valve avoidance hole and the valve stem is prone to heat dissipation, which is not conducive to heat preservation.

[0005] In view of this, we propose an oil production tree heat preservation device. Summary of the Invention

[0006] The purpose of the utility model is to provide an oil production tree heat preservation device, which includes a heat preservation cylinder body. The heat preservation cylinder body includes a main cylinder body and at least one group of arm cylinder bodies. One group of arm cylinder bodies is symmetrically arranged on both sides of the main cylinder body detachably. Heating pads are arranged in both the main cylinder body and the arm cylinder bodies. The main cylinder body includes a left front shell, a right front shell, and a rear shell. First connection seats are provided at the docking edges of the left front shell and the right front shell with the rear shell respectively. Corresponding grooves and protrusions are provided on the docking surfaces of the left front shell and the right front shell respectively. The protrusions are inserted into the corresponding grooves. A first avoidance hole is provided on the front surface of the main cylinder body. The first avoidance hole is composed of a semi-circular hole of the left front shell and a semi-circular hole of the right front shell. The arm cylinder body includes an upper shell and a lower shell. Second connection seats are provided at the docking edges of the upper shell and the lower shell. A second avoidance hole is provided on the front surface of the arm cylinder body. The second avoidance hole is composed of a semi-circular hole of the upper shell and a semi-circular hole of the lower shell.

[0007] Preferably, an elastic sealing layer is provided in the semicircular hole of the first avoidance hole and the semicircular hole of the second avoidance hole, and the elastic sealing layer fits with the valve stem of the Christmas tree.

[0008] Preferably, at least one set of sealing mounting rings are provided on both sides of the main cylinder body, and the sealing mounting rings include a first half ring and a second half ring, the first half ring is arranged on the rear shell body, and the second half ring is arranged on the corresponding left front shell body or right front shell body, the inner diameter of the sealing mounting ring is adapted to the outer diameter of the support arm cylinder body, and the end of the support arm cylinder body close to the main cylinder body is inserted into the sealing mounting ring.

[0009] Preferably, both upper and lower ends of the main cylinder are sleeved with a first sealing sleeve, and the end of the arm cylinder away from the main cylinder is sleeved with a second sealing sleeve.

[0010] Preferably, the first connecting seat of the left front shell corresponds one-to-one with the first connecting seat on one side of the rear shell and is bolted, the first connecting seat of the right front shell corresponds one-to-one with the first connecting seat on the other side of the rear shell and is bolted, and the second connecting seat of the upper shell corresponds one-to-one with the second connecting seat of the lower shell and is bolted.

[0011] The advantages and beneficial effects of the utility model are:

[0012] 1. The insulation cylinder of the utility model is provided with a detachable main cylinder and at least one group of arm cylinders. The main cylinder is composed of a left front shell, a right front shell and a rear shell connected by bolts, and the arm cylinder is composed of an upper shell and a lower shell connected by bolts. Since the first avoidance hole of the main cylinder and the second avoidance hole of the arm cylinder are both formed by connecting a semicircular hole structure, there is no need to remove the turntable of the valve when disassembling and assembling the insulation cylinder, the operation is convenient, and it is convenient for personnel to realize the rapid disassembly and assembly of the insulation cylinder on the oil tree.

[0013] 2. The first avoidance hole and the second avoidance hole of the utility model are both provided with elastic sealing layers, and when the two semicircular holes are butted, the elastic sealing layer can fit with the valve stem of the oil production tree, thereby sealing the gap between the valve stem and the hole wall, thereby improving the thermal insulation effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model.

[0015] Figure 2 It is a disassembly schematic diagram of the utility model.

[0016] Figure 3 It is a transverse cross-sectional schematic diagram of the utility model. DETAILED DESCRIPTION

[0017] The following further describes the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and cannot be used to limit the protection scope of the present utility model.

[0018] The technical solution specifically implemented by the present utility model is as follows:

[0019] As Figures 1 to 3 shown, an oil production tree heat preservation device includes a heat preservation cylinder body, and the heat preservation cylinder body includes a main cylinder body 1 and at least one group of arm cylinder bodies 2. One group of the arm cylinder bodies 2 is symmetrically and detachably arranged on both sides of the main cylinder body 1. Heating pads (not shown in the figure, which have been publicly disclosed in the existing patents in the background technology and will not be elaborated here) are provided in both the main cylinder body 1 and the arm cylinder bodies 2; the main cylinder body 1 includes a left front shell 11, a right front shell 12 and a rear shell 13. First connection seats 3 are provided at the docking edges of the left front shell 11 and the right front shell 12 with the rear shell 13 respectively. Corresponding grooves 111 and bumps 121 are provided on the docking surfaces of the left front shell 11 and the right front shell 12 respectively. The bump 121 is inserted into the corresponding groove 111. A number of first avoidance holes 5 arranged in a straight line are provided on the front surface of the main cylinder body 1. The first avoidance hole 5 is composed of a semi-circular hole 51 of the left front shell 11 and a semi-circular hole 52 of the right front shell 12; the arm cylinder body 2 includes an upper shell 21 and a lower shell 22. Second connection seats 4 are provided at the docking edges of the upper shell 21 and the lower shell 22. A second avoidance hole 6 is provided on the front surface of the arm cylinder body 2. The second avoidance hole 6 is composed of a semi-circular hole 61 of the upper shell 21 and a semi-circular hole 62 of the lower shell 22.

[0020] Elastic sealing layers are provided in the semi-circular holes of the above-mentioned first avoidance hole 5 and the semi-circular holes of the second avoidance hole 6, and the elastic sealing layers are in contact with the valve stem of the oil production tree; specifically, when the two semi-circular holes are butted, the elastic sealing layer can fill the gap between the valve stem and the hole wall, further improving the heat preservation effect of the device.

[0021] At least one group of sealing mounting rings 7 are provided on both sides of the above-mentioned main cylinder body 1. The sealing mounting ring 7 is composed of a first half ring 71 and a second half ring 72. The first half ring 71 is arranged on the rear shell 13, and the second half ring 72 is arranged on the corresponding left front shell 11 or right front shell 12. The inner diameter of the sealing mounting ring 7 is adapted to the outer diameter of the arm cylinder body 2. The end of the arm cylinder body 2 close to the main cylinder body 1 is inserted into the sealing mounting ring 7; specifically, the sealing mounting ring 7 is assembled and clamped by the first half ring 71 and the second half ring 72 up and down at the end of the arm cylinder body 2 to achieve a sealed connection, facilitating the detachable connection between the arm cylinder body 2 and the main cylinder body 1.

[0022] The upper and lower ends of the main cylinder body 1 are both sleeved with a first sealing sleeve 8, and the end of the support arm cylinder body 2 far from the main cylinder body 1 is sleeved with a second sealing sleeve 9; specifically, it can seal the end positions of the main cylinder body 1 and the support arm cylinder body 2, reduce heat dissipation, and improve the heat preservation effect.

[0023] The first connecting seats 3 of the left front housing 11 correspond to the first connecting seats 3 on one side of the rear housing 13 one by one and are bolted, the first connecting seats 3 of the right front housing 12 correspond to the first connecting seats 3 on the other side of the rear housing 13 one by one and are bolted, and the second connecting seats 4 of the upper housing 21 correspond to the second connecting seats 4 of the lower housing 22 one by one and are bolted; specifically, the bolt connection through the first connecting seat 3 is used to connect and fix the left front housing 11, the right front housing 12 and the rear housing 13 of the main cylinder body 1, and the bolt connection through the second connecting seat 4 is used to connect and fix the upper housing 21 and the lower housing 22 of the support arm cylinder body 2.

[0024] When installing the oil production tree heat preservation device, first install the upper housing 21 of the support arm cylinder body 2 on the upper part of the oil production tree support arm, and install the lower housing 22 of the support arm cylinder body 2 on the lower part of the oil production tree support arm. Adjust the positions of the upper housing 21 and the lower housing 22 so that the two semi-circular holes forming the second avoidance hole 6 are aligned with the valve stem on the oil production tree support arm up and down, and use the bolt connection of the second connecting seat 4 to clamp the upper housing 21 and the lower housing 22 up and down and assemble them on the oil production tree support arm. Then install the second sealing sleeve 9 at the outer end of the support arm cylinder body 2 to achieve sealing. Install multiple groups of support arm cylinder bodies 2 according to the above method;

[0025] After that, align the left front housing 11 and the right front housing 12 of the main cylinder body 1 left and right, and make the two semi-circular holes forming the first avoidance hole 5 clamp on the left and right sides of the valve stem on the main trunk of the oil production tree, so as to install the left front housing 11 and the right front housing 12 on the front of the main trunk of the oil production tree. Then install the rear housing 13 of the main cylinder body 1 on the back of the main trunk of the oil production tree, and use the bolt connection of the first connecting seat 3 to clamp the left front housing 11, the right front housing 12 and the rear housing 13 to assemble them on the main trunk of the oil production tree. The sealing installation ring 7 of the main cylinder body 1 is assembled and clamped by the first half ring 71 and the second half ring 72 up and down at the inner end of the support arm cylinder body 2 to achieve sealing connection. Finally, install the first sealing sleeve 8 at the upper and lower ends of the main cylinder body 1 to achieve sealing. The operation is convenient, and there is no need to remove the turntable of the valve, which can facilitate the rapid installation of the heat preservation cylinder body on the oil production tree by personnel.

[0026] The above is only the preferred implementation manner of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A Christmas tree insulation device, comprising an insulation cylinder, characterized in that: The heat preservation cylinder comprises a main cylinder and at least one group of arm cylinders, wherein the group of arm cylinders are detachably and symmetrically arranged on both sides of the main cylinder, and heating pads are arranged in both the main cylinder and the arm cylinders; The main cylinder body comprises a left front shell body, a right front shell body and a rear shell body, the left front shell body and the right front shell body are respectively provided with a first connecting seat at the docking edge with the rear shell body, the docking surfaces of the left front shell body and the right front shell body are respectively provided with corresponding grooves and protrusions, the protrusions are plugged into the corresponding grooves, and the front side of the main cylinder body is provided with a plurality of first avoidance holes arranged in a straight line, the first avoidance holes are composed of the semicircular holes of the left front shell body and the semicircular holes of the right front shell body; The support arm cylinder includes an upper shell and a lower shell, a second connecting seat is provided at the docking edge of the upper shell and the lower shell, and a second avoidance hole is provided on the front of the support arm cylinder, and the second avoidance hole is composed of a semicircular hole of the upper shell and a semicircular hole of the lower shell.

2. A Christmas tree insulation device according to claim 1, characterized in that: The semicircular hole of the first avoidance hole and the semicircular hole of the second avoidance hole are both provided with elastic sealing layers, and the elastic sealing layers are in contact with the valve stem of the Christmas tree.

3. The Christmas tree insulation device according to claim 2, characterized in that: At least one set of sealing mounting rings is provided on both sides of the main cylinder body, and the sealing mounting rings include a first half ring and a second half ring. The first half ring is arranged on the rear shell body, and the second half ring is arranged on the corresponding left front shell body or right front shell body. The inner diameter of the sealing mounting ring is adapted to the outer diameter of the support arm cylinder body, and the end of the support arm cylinder body close to the main cylinder body is inserted into the sealing mounting ring.

4. The Christmas tree insulation device according to claim 3, characterized in that: The upper and lower ends of the main cylinder are both sleeved with a first sealing sleeve, and the end of the arm cylinder away from the main cylinder is sleeved with a second sealing sleeve.

5. The Christmas tree insulation device according to claim 4, characterized in that: The first connection seat of the left front shell corresponds one-to-one with the first connection seat on one side of the rear shell and is bolted together, the first connection seat of the right front shell corresponds one-to-one with the first connection seat on the other side of the rear shell and is bolted together, and the second connection seat of the upper shell corresponds one-to-one with the second connection seat of the lower shell and is bolted together.

Images