A high-pressure corrosion-resistant wellhead device

Abstract

The utility model discloses a high-pressure corrosion-resistant wellhead device, including a base frame, a self-locking wheel is arranged at the bottom end of the base frame, and a driving assembly is arranged on the left side of a first motor, and a driving block is installed on the outside of the driving rod; a support seat is arranged on the outside of the base frame, a top plate is installed on the upper end of the limit rod, a guide rod is arranged at the lower end of the second motor, and an adjustment plate is arranged on the inner side of the guide block. The high-pressure corrosion-resistant wellhead device, by adding a first motor and a driving assembly, enables the first motor to be turned on, and the internal parts of the driving assembly are driven to drive the connecting plate and the connected whole to position and clamp the wellhead. Compared with the traditional technology, it has the foundation for the subsequent engagement of the sealing barrel with the wellhead, which is convenient for realizing the positioning and clamping function of the high-pressure corrosion-resistant wellhead device on the wellhead. At the same time, the sealing barrel and the sealing ring are added to facilitate the anti-overflow function of the high-pressure corrosion-resistant wellhead device.

Description

Technical Field

[0001] The utility model relates to the technical field of wellheads, in particular to a high-pressure corrosion-resistant wellhead device. Background Art

[0002] Before oil is mined, a wellhead with a very large depth needs to be drilled using a drill bit. The underground oil is also accompanied by flammable and explosive high-pressure gas. The high-pressure corrosion-resistant wellhead device is a device specially installed at the wellhead for sealing the wellhead. The existing sealing equipment is difficult to quickly align with the wellhead and install to perform the sealing function. Therefore, it is very important to design a new type of high-pressure corrosion-resistant wellhead device.

[0003] However, most of the existing technical solutions have the following defects: it is not convenient to realize the positioning and clamping function of the high-pressure corrosion-resistant wellhead device on the wellhead, and at the same time, it is not convenient to realize the overflow prevention function of the high-pressure corrosion-resistant wellhead device. Therefore, the utility model provides a high-pressure corrosion-resistant wellhead device to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a high-pressure corrosion-resistant wellhead device to solve the problem raised in the above background technology that it is not convenient to realize the positioning and clamping function of the high-pressure corrosion-resistant wellhead device on the wellhead, and at the same time, it is not convenient to realize the anti-overflow function of the high-pressure corrosion-resistant wellhead device.

[0005] To achieve the above object, the utility model provides the following technical solutions: a high-pressure corrosion-resistant wellhead device, comprising a base frame, a self-locking wheel is arranged at the bottom end of the base frame, a first motor is installed inside the base frame, and a driving assembly is arranged on the left side of the first motor, and the driving assembly includes a driving rod arranged on the left side of the first motor, a driving block is installed outside the driving rod, and the front end of the driving block is connected to a limit block;

[0006] A connecting plate is arranged at the front end of the limit block, and a connecting seat is installed on the inner side of the connecting plate, a positioning rod is arranged inside the connecting seat, a positioning plate is arranged at the inner end of the connecting seat, and a positioning wheel is installed outside the positioning rod;

[0007] A support seat, which is arranged on the outside of the base frame, and the upper end of the support seat is connected to a limit rod, the upper end of the limit rod is installed with a top plate, and the inside of the top plate is installed with a second motor, the lower end of the second motor is provided with a guide rod, and the outside of the guide rod is connected with a guide block, the inner side of the guide block is provided with an adjustment plate, and the inner side of the adjustment plate is installed with a connection frame;

[0008] A sealing barrel is arranged on the inner side of the connecting frame, and a sealing ring is connected to the inside of the sealing barrel. A splash-proof cover is arranged on the upper side of the sealing barrel, and a sealing pad is connected to the lower end of the splash-proof cover, and a connecting bolt is connected to the inside of the splash-proof cover.

[0009] Preferably, the driving rod passes through the interior of the driving block, and the driving block is disposed bilaterally symmetrically with respect to a center line of the driving rod.

[0010] Preferably, the limit block is connected to the base frame in a relatively sliding manner, and the cross section of the base frame is in a "U" shape.

[0011] Preferably, the connecting plate and the connecting seat are relatively snap-fitted and connected, and the positioning rod passes through the inside of the connecting plate and the connecting seat.

[0012] Preferably, the positioning rod and the positioning wheel are threadedly connected to each other, and the positioning wheel is symmetrically arranged front and back about the center line of the positioning rod.

[0013] Preferably, the guide rod is threadedly connected to the guide block, and the limit rod is slidably connected to the guide block.

[0014] Preferably, the connecting frame is arranged at an equal angle with respect to the center of the sealing barrel, and the sealing barrel is relatively snap-fitted and connected with the splash-proof cover, and the sealing barrel is relatively snugly connected with the sealing gasket and the sealing ring.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the high-pressure corrosion-resistant wellhead device, by adding a first motor and a driving assembly, enables the first motor to be turned on and driven by the internal parts of the driving assembly to drive the connecting plate and the connected whole to position and clamp the wellhead. Compared with the traditional technology, it has a foundation for the subsequent engagement of the sealing barrel with the wellhead, and is convenient for realizing the positioning and clamping function of the high-pressure corrosion-resistant wellhead device on the wellhead. At the same time, the sealing barrel and the sealing ring are added to facilitate the anti-overflow function of the high-pressure corrosion-resistant wellhead device. The specific operation is as follows;

[0016] 1. A first motor, a driving assembly and a positioning plate are provided. The driving rod drives the limit block to be slidably connected with the base frame through the driving block. At this time, the connecting plate at the front end of the limit block and the whole connected thereto move correspondingly until the inner side of the positioning plate contacts the edge of the wellhead and clamps it in a limited position, so as to realize the positioning and clamping function of the high-pressure corrosion-resistant wellhead device on the wellhead;

[0017] 2. A second motor and an adjustment plate are provided. By turning on the second motor, the second motor drives the guide rod to rotate, so that the guide block and the limit rod slide. The adjustment plate is connected to the wellhead to be positioned as a whole through the connecting frame, and the intelligent height adjustment of the high-pressure corrosion-resistant wellhead device is completed;

[0018] 3. A sealing gasket and a sealing ring are provided. The splash-proof cover is engaged with the upper end of the sealing barrel, and the sealing gasket at the lower end of the splash-proof cover fits with the groove on the sealing barrel. The connecting bolt is tightened to reinforce the connection between the splash-proof cover and the sealing barrel to prevent oil from splashing out of the wellhead and impurities from entering the well to affect the purity of the oil, thereby facilitating the anti-overflow function of the high-pressure corrosion-resistant wellhead device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0020] Figure 2 This is a top view of the structure of the connection between the first motor and the drive assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the connection frame and the sealing barrel of the utility model;

[0022] Figure 4 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0023] In the figure: 1, base frame; 2, self-locking wheel; 3, first motor; 4, driving assembly; 401, driving rod; 402, driving block; 403, limiting block; 5, connecting plate; 6, connecting seat; 7, positioning rod; 8, positioning wheel; 9, positioning plate; 10, supporting seat; 11, limiting rod; 12, top plate; 13, second motor; 14, guide rod; 15, guide block; 16, adjusting plate; 17, connecting frame; 18, sealing barrel; 19, sealing ring; 20, splash cover; 21, sealing pad; 22, connecting bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 The utility model provides a technical solution: a high-pressure corrosion-resistant wellhead device, comprising a base frame 1, a self-locking wheel 2 is arranged at the bottom end of the base frame 1, and a first motor 3 is installed inside the base frame 1, and also comprises a driving assembly 4 arranged on the left side of the first motor 3, and the driving assembly 4 comprises a driving rod 401 arranged on the left side of the first motor 3, a driving block 402 is installed outside the driving rod 401, and the front end of the driving block 402 is connected to a limiting block 403;

[0026] The connecting plate 5 is arranged at the front end of the limit block 403, and a connecting seat 6 is installed on the inner side of the connecting plate 5, a positioning rod 7 is arranged inside the connecting seat 6, and a positioning plate 9 is arranged at the inner end of the connecting seat 6, and a positioning wheel 8 is installed outside the positioning rod 7;

[0027] The support seat 10 is arranged on the outside of the base frame 1, and the upper end of the support seat 10 is connected to the limit rod 11, the upper end of the limit rod 11 is installed with a top plate 12, and the inside of the top plate 12 is installed with a second motor 13, the lower end of the second motor 13 is provided with a guide rod 14, and the outside of the guide rod 14 is connected with a guide block 15, the inner side of the guide block 15 is provided with an adjustment plate 16, and the inner side of the adjustment plate 16 is installed with a connecting frame 17;

[0028] A sealing barrel 18 is arranged on the inner side of the connecting frame 17, and a sealing ring 19 is connected to the inside of the sealing barrel 18, a splash-proof cover 20 is arranged on the upper side of the sealing barrel 18, and a sealing gasket 21 is connected to the lower end of the splash-proof cover 20, and a connecting bolt 22 is connected to the inside of the splash-proof cover 20, which together constitute a high-pressure corrosion-resistant wellhead device.

[0029] like Figure 1 , Figure 2 and Figure 4 As shown, the driving rod 401 passes through the interior of the driving block 402, and the driving block 402 is symmetrically arranged about the center line of the driving rod 401, the limit block 403 is connected to the base frame 1 in a relatively sliding manner, and the cross section of the base frame 1 is "U"-shaped, the connecting plate 5 and the connecting seat 6 are relatively engaged and connected, and the positioning rod 7 passes through the interior of the connecting plate 5 and the connecting seat 6, the positioning rod 7 and the positioning wheel 8 are relatively threadedly connected, and the positioning wheel 8 is symmetrically arranged about the center line of the positioning rod 7, the connecting plate 5 is engaged with the connecting seat 6 outside the positioning plate 9, the positioning rod 7 passes through the interior of the connecting plate 5 and the connecting seat 6, and the positioning wheel 8 is tightened. , so that the positioning wheel 8 is tightened at the front and rear ends of the positioning rod 7, pushing the base frame 1, so that the self-locking wheel 2 at the lower end of the base frame 1 rolls with the ground. When the wellhead is in the middle of the base frame 1, the first motor 3 is turned on, and the first motor 3 drives the driving rod 401 to rotate, so that the driving rod 401 drives the limit block 403 to slide and connect with the base frame 1 through the driving block 402. At this time, the connecting plate 5 at the front end of the limit block 403 and the whole connected with it move accordingly until the inner side of the positioning plate 9 contacts the edge of the wellhead and limits and clamps it, so as to realize the positioning and clamping function of the wellhead by the high-pressure corrosion-resistant wellhead device.

[0030] like Figure 1 and Figure 3As shown, the guide rod 14 is relatively threadedly connected to the guide block 15, and the limit rod 11 is relatively slidably connected to the guide block 15, the connecting frame 17 is set at an equal angle with respect to the center of the sealing barrel 18, and the sealing barrel 18 is relatively snap-fitted and connected to the splash cover 20, and the sealing barrel 18 is relatively fit-fitted with the sealing gasket 21 and the sealing ring 19. After the wellhead is positioned, the wellhead is in the center of the base frame 1, and the upper part of the wellhead is aligned with the sealing barrel 18, the second motor 13 is turned on, and the second motor 13 drives the guide rod 14 to rotate, so that the guide block 15 and the limit rod 11 slide, and the adjustment plate 16 is connected by the connecting frame 17 as a whole to be positioned wellhead, until the sealing ring 19 inside the sealing barrel 18 fits with the wellhead, and the splash cover 20 is clamped with the upper end of the sealing barrel 18. At this time, the sealing gasket 21 at the lower end of the splash cover 20 fits with the groove on the sealing barrel 18, and the connecting bolt 22 is tightened to reinforce the connection between the splash cover 20 and the sealing barrel 18, so as to prevent oil from splashing out of the wellhead and prevent impurities from entering the well to affect the purity of the oil, so as to facilitate the realization of the overflow prevention function of the high-pressure corrosion-resistant wellhead device. This is the method for using the high-pressure corrosion-resistant wellhead device.

[0031] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-pressure corrosion-resistant wellhead device, comprising a base frame (1), a self-locking wheel (2) is arranged at the bottom end of the base frame (1), and a first motor (3) is installed inside the base frame (1), characterized in that: It also includes a driving assembly (4) arranged on the left side of the first motor (3), and the driving assembly (4) includes a driving rod (401) arranged on the left side of the first motor (3), a driving block (402) is installed on the outside of the driving rod (401), and the front end of the driving block (402) is connected to a limiting block (403); A connecting plate (5) is arranged at the front end of the limit block (403), and a connecting seat (6) is installed on the inner side of the connecting plate (5), a positioning rod (7) is arranged inside the connecting seat (6), a positioning plate (9) is arranged at the inner end of the connecting seat (6), and a positioning wheel (8) is installed outside the positioning rod (7); A support seat (10) is arranged on the outside of the base frame (1), and the upper end of the support seat (10) is connected to a limit rod (11), the upper end of the limit rod (11) is installed with a top plate (12), and the inside of the top plate (12) is installed with a second motor (13), the lower end of the second motor (13) is provided with a guide rod (14), and the outside of the guide rod (14) is connected with a guide block (15), the inner side of the guide block (15) is provided with an adjustment plate (16), and the inner side of the adjustment plate (16) is installed with a connecting frame (17); A sealing barrel (18) is arranged on the inner side of the connecting frame (17), and a sealing ring (19) is connected inside the sealing barrel (18), a splash-proof cover (20) is arranged on the upper side of the sealing barrel (18), a sealing pad (21) is connected at the lower end of the splash-proof cover (20), and a connecting bolt (22) is connected inside the splash-proof cover (20).

2. A high pressure corrosion resistant wellhead device according to claim 1, characterized in that: The driving rod (401) passes through the interior of the driving block (402), and the driving block (402) is disposed symmetrically with respect to the center line of the driving rod (401).

3. A high pressure corrosion resistant wellhead device according to claim 1, characterized in that: The limit block (403) is connected to the base frame (1) in a relatively sliding manner, and the cross section of the base frame (1) is in a "U" shape.

4. A high pressure corrosion resistant wellhead device according to claim 1, characterized in that: The connecting plate (5) and the connecting seat (6) are relatively engaged and connected, and the positioning rod (7) passes through the inside of the connecting plate (5) and the connecting seat (6).

5. A high pressure corrosion resistant wellhead device according to claim 4, characterized in that: The positioning rod (7) and the positioning wheel (8) are threadedly connected relative to each other, and the positioning wheel (8) is symmetrically arranged front and back about the center line of the positioning rod (7).

6. The high-pressure corrosion-resistant wellhead device according to claim 1, characterized in that: The guide rod (14) is threadedly connected to the guide block (15), and the limit rod (11) is slidably connected to the guide block (15).

7. The high-pressure corrosion-resistant wellhead device according to claim 1, characterized in that: The connecting frame (17) is arranged at an equal angle with respect to the center of the sealing barrel (18), and the sealing barrel (18) is relatively snap-fitted and connected with the splash-proof cover (20), and the sealing barrel (18) is relatively snap-fitted and connected with the sealing pad (21) and the sealing ring (19).

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