Well mouth blowout preventer for well drilling

Abstract

The utility model discloses a well drilling wellhead blowout preventer which is applied to the field of blowout preventers and comprises a blowout preventer body, heat preservation covers are connected to the front face and the back face of the blowout preventer body in a bolted mode, heat conduction plates are installed in the heat preservation covers through fixing pieces, one side of each heat conduction plate is attached to the blowout preventer body, and the other side of each heat conduction plate is attached to the blowout preventer body. A heat conduction plate is arranged on one side of the blowout preventer body, a resistance wire is installed on the other side of the heat conduction plate, fixing frames are arranged on the two sides of the blowout preventer body, anti-collision plates are arranged on the other sides of the fixing frames, two connecting plates are arranged in the fixing frames, and fixing rods are welded between one sides of the connecting plates and the anti-collision plates. According to the technical scheme, the side protection function can be achieved, the anti-collision and anti-impact effects of equipment are improved, the safety of the equipment in the moving and transporting process is guaranteed, the service life of the equipment is prolonged, meanwhile, the auxiliary heating function can be achieved, internal oil ways and components are prevented from being affected by low temperature, normal operation of the equipment is guaranteed, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of blowout preventer, especially to a wellhead blowout preventer of drilling. BACKGROUND

[0002] At present, the Chinese utility model with the announcement number CN212428697U discloses a continuous oil pipe wellhead blowout preventer. Although the blowout preventer can increase the sealing ring to improve the sealing effect between the oil pumping rod, there are still other problems in the use process, such as not having auxiliary heating function, when the blowout preventer is used in low temperature environment, it is easy to make the internal hydraulic oil circuit flowability decrease and produce unsmooth, affect the normal work of the equipment, the applicability is poor, and it does not have side protection function, the both ends of the equipment are poor in impact resistance, when the equipment collides with external objects in the transportation process, it is easy to malfunction and damage due to impact force, and the safety is poor, in order to solve the above problems, we propose a wellhead blowout preventer of drilling. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a wellhead blowout preventer of drilling, which solves the problem that the existing wellhead blowout preventer does not have auxiliary heating function and does not have side protection function.

[0004] The above technical purpose of the utility model is realized by the following technical scheme: a wellhead blowout preventer of drilling, including the blowout preventer main part, the front and back of the blowout preventer main part are all hinged with the heat preservation cover, the inside of the heat preservation cover is installed with the heat conducting plate through the fixed part, one side of the heat conducting plate is attached with the blowout preventer main part, the other side of the heat conducting plate is installed with the resistance wire, the both sides of the blowout preventer main part are all provided with the fixed frame, the other side of the fixed frame is provided with the anti-collision plate, the inside of the fixed frame is provided with two connecting plates, the connecting plate is welded with the fixed rod between one side and the anti-collision plate, the connecting plate is hinged with the fixed spring through the spring fixed sheet between one side and the fixed frame, the connecting plate is installed with the damper between one side and the fixed frame.

[0005] The above technical scheme can have side protection function, improve the anti-collision and impact resistance effect of the equipment, ensure the safety of the equipment in the moving and transportation process, prolong the service life of the equipment, can have auxiliary heating function at the same time, avoid the influence of low temperature on the internal oil circuit and components, ensure the normal operation of the equipment, and the practicability is high.

[0006] The utility model is further provided with: the top and bottom of the blowout preventer main part are all installed with the flange.

[0007] The above technical scheme can connect the equipment with the pipeline through the setting of the flange.

[0008] The heat-conducting plate is made of aluminum alloy material.

[0009] The heat-conducting plate has excellent heat-conducting performance, good durability and easy cleaning.

[0010] The utility model further provides for: the front and back of the blowout preventer body all symmetry welding have threaded rod, the other end of threaded rod runs through to the outside of fixed frame and is screwed the nut.

[0011] The threaded rod and the nut are arranged, so that the fixed frame can be fixed after being pulled up, and the fixed frame can be prevented from falling due to vibration.

[0012] The utility model further provides for: the both sides of the blowout preventer body all symmetry install the backing plate.

[0013] The backing plate is arranged, so that the fixed frame can be limited, and the angle of the fixed frame can be prevented from being too large after being placed.

[0014] The utility model further provides for: the fixed spring is made of carbon spring steel material.

[0015] The fixed spring has excellent mechanical properties, good anti-bounce performance, low-temperature resistance and corrosion resistance.

[0016] In summary, the utility model has the following beneficial effects:

[0017] 1. When the side of the device is impacted, the impact plate is first impacted, the impact plate is moved backward by the fixed rod, the fixed spring and the damper are deformed when the connecting plate is moved backward, the impact force is absorbed and offset when the fixed spring and the damper are deformed, the side protection function is achieved, the anti-collision and impact resistance of the device are improved, the safety of the device during movement and transportation is ensured, and the service life of the device is prolonged.

[0018] 2. When the ambient temperature is low, the resistance wire is started and connected, heat is generated after the resistance wire is started, the heat is transmitted to the blowout preventer body by the heat-conducting plate, the heat is further transmitted to the inside of the shell of the blowout preventer body, the heat energy is reduced by the heat preservation cover, the auxiliary heating function is achieved, the internal oil circuit and components are not affected by low temperature, the normal operation of the device is ensured, and the utility model has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure perspective view of the utility model;

[0020] Figure 2 is the structure of the present utility model front view;

[0021] Figure 3 is the structure of the present utility model overhead view.

[0022] Reference signs: 1, blowout preventer main body; 2, heat preservation cover; 3, heat conduction plate; 4, resistance wire; 5, fixed frame; 6, anti-collision plate; 7, connecting plate; 8, fixed rod; 9, fixed spring; 10, flange; 11, threaded rod; 12, nut; 13, pad; 14, damper. DETAILED DESCRIPTION

[0023] The present utility model will be further described in detail below in combination with the drawings.

[0024] Example 1:

[0025] Reference Figure 1 , Figure 2 and Figure 3 , a wellhead blowout preventer, comprising a blowout preventer main body 1, the front and back of the blowout preventer main body 1 are bolted with heat preservation cover 2, the inside of heat preservation cover 2 is installed with heat conduction plate 3 through fixed part, one side of heat conduction plate 3 is pasted with blowout preventer main body 1, the other side of heat conduction plate 3 is installed with resistance wire 4, when the ambient temperature is low, resistance wire 4 is started and connected, resistance wire 4 will generate heat after starting, the heat will be transferred to blowout preventer main body 1 pasted with heat conduction plate 3 after forming, then continues to transfer inside through the shell of blowout preventer main body 1, heat preservation cover 2 can reduce the outflow of heat energy, can have auxiliary heating function, avoids the influence of low temperature on internal oil circuit and component, guarantees the normal operation of equipment, and the practicality is high.

[0026] Reference Figure 1 , Figure 2 and Figure 3 , the top and bottom of blowout preventer main body 1 are installed with flange 10, through the setting of flange 10, the equipment can be conveniently connected with pipeline.

[0027] Reference Figure 1 and Figure 3 , heat conduction plate 3 is made of aluminum alloy material, heat conduction plate 3 has excellent heat conduction performance, and has the characteristics of excellent durability and easy cleaning.

[0028] Brief description of the use process: when the ambient temperature is low, resistance wire 4 is started and connected, resistance wire 4 will generate heat after starting, the heat will be transferred to blowout preventer main body 1 pasted with heat conduction plate 3 after forming, then continues to transfer inside through the shell of blowout preventer main body 1, heat preservation cover 2 can reduce the outflow of heat energy.

[0029] Example 2:

[0030] Reference Figure 1 , Figure 2 and Figure 3 , a well drilling wellhead blowout preventer, both sides of the blowout preventer body 1 are provided with a fixed frame 5, the other side of the fixed frame 5 is provided with a fender 6, the inside of the fixed frame 5 is provided with two connecting plates 7, the side of the connecting plate 7 and the fender 6 are welded with a fixed rod 8, the side of the connecting plate 7 and the fixed frame 5 are bolted with a fixed spring 9 through a spring fixing piece, the side of the connecting plate 7 and the fixed frame 5 are installed with a damper 14, when the side of the equipment is impacted, it will first impact the fender 6, the fender 6 will drive the connecting plate 7 to move backward through the fixed rod 8 when impacted, the connecting plate 7 will pull the fixed spring 9 and the damper 14 to deform when moving backward, the fixed spring 9 and the damper 14 will absorb and offset the impact force when deformed, which can have a side protection function, improve the anti-collision and impact resistance effect of the equipment, ensure the safety of the equipment during movement and transportation, and prolong the service life of the equipment.

[0031] Reference Figure 1 , Figure 2 and Figure 3 , the front and back of the blowout preventer body 1 are symmetrically welded with threaded rods 11, the other end of the threaded rod 11 penetrates to the outside of the fixed frame 5 and is threadedly connected with a nut 12, through the setting of the threaded rod 11 and the nut 12, the fixed frame 5 can be fixed after being pulled up during use, preventing the fixed frame 5 from falling due to vibration after being pulled up.

[0032] Reference Figure 2 and Figure 3 , the two sides of the blowout preventer body 1 are symmetrically installed with a backing plate 13, through the setting of the backing plate 13, the fixed frame 5 can be limited, preventing the fixed frame 5 from falling too much after being placed.

[0033] Reference Figure 2 and Figure 3 , the fixed spring 9 is made of carbon spring steel material, which has the characteristics of excellent mechanical properties, good anti-bounce performance, low temperature resistance and corrosion resistance.

[0034] Use process: when the side of the equipment is impacted, it will first impact the fender 6, the fender 6 will drive the connecting plate 7 to move backward through the fixed rod 8 when impacted, the connecting plate 7 will pull the fixed spring 9 and the damper 14 to deform when moving backward, the fixed spring 9 and the damper 14 will absorb and offset the impact force when deformed.

[0035] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. A person skilled in the art can make modifications to the embodiment without creative contribution according to needs after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, the modifications are protected by the Patent Law.

Claims

1. A wellhead blowout preventer, comprising a blowout preventer body (1), characterized in that: The front and back of the blowout preventer body (1) are both fitted with heat insulation covers (2). A heat-conducting plate (3) is installed inside the heat insulation cover (2) through a fastener. One side of the heat-conducting plate (3) is in contact with the blowout preventer body (1), and a resistance wire (4) is installed on the other side of the heat-conducting plate (3). Fixing frames (5) are provided on both sides of the blowout preventer body (1). A crash plate (6) is provided on the other side of the fixing frame (5). Two connecting plates (7) are provided inside the fixing frame (5). A fixing rod (8) is welded between one side of the connecting plate (7) and the crash plate (6). A fixing spring (9) is bolted between one side of the connecting plate (7) and the fixing frame (5) through a spring fixing piece. A damper (14) is installed between one side of the connecting plate (7) and the fixing frame (5).

2. A wellhead blowout preventer according to claim 1, characterized in that, Flanges (10) are installed at the top and bottom of the blowout preventer body (1).

3. A wellhead blowout preventer according to claim 1, characterized in that, The heat-conducting plate (3) is made of aluminum alloy.

4. A wellhead blowout preventer according to claim 1, characterized in that, The blowout preventer body (1) has threaded rods (11) symmetrically welded on both the front and back sides. The other end of the threaded rod (11) extends through to the outside of the fixed frame (5) and is threaded with a nut (12).

5. A wellhead blowout preventer according to claim 1, characterized in that, Both sides of the blowout preventer body (1) are symmetrically equipped with pads (13).

6. A wellhead blowout preventer according to claim 1, characterized in that, The fixed spring (9) is made of carbon spring steel.

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