Torch adjusting device of natural gas extraction platform

Abstract

The utility model provides a torch adjusting device for a natural gas extraction platform, which comprises an anemograph, a torch adjusting device, a torch adjusting device and a torch adjusting device, and is characterized in that the anemograph comprises a rotating shaft and a wind bowl mechanism arranged on the rotating shaft; a fuel gas inlet of the torch body is connected with a fuel gas source through a fuel gas pipeline; the flow control assembly is arranged on the gas pipeline, and the flow control assembly is used for adjusting the flow area of the gas pipeline according to the wind speed measurement result of the anemograph so as to control the flow of the fuel gas. Based on the technical scheme, the flow of fuel gas of the torch can be automatically controlled according to the external wind speed, so that the combustion state of the torch can be flexibly adjusted, fuel gas energy can be saved on the basis of ensuring normal combustion and emptying of the torch, and the energy consumption is reduced. And energy waste and mass emission of carbon caused by the fact that fuel gas adopted by an existing torch is combusted in the direction with the fixed flow are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas mining platforms, in particular to a flare regulating device for natural gas mining platforms. Background Art

[0002] The natural gas flare venting device is an indispensable safety component in the natural gas extraction platform. It is mainly used to vent natural gas and ignite the vented natural gas to avoid direct air pollution. At present, the traditional natural gas extraction platform flare adopts a continuous combustion mode with a fixed flow rate of fuel gas. Regardless of the external environment, a large amount of fuel gas needs to be consumed. For example, the technical solution adopted by the publication number CN203489285U not only causes energy waste but also generates a large amount of carbon emissions. Utility Model Content

[0003] In order to solve the problems of large energy consumption and large carbon emissions in the continuous combustion mode of a fixed flow rate of fuel gas adopted by the flare in the prior art, the utility model proposes a flare regulating device for a natural gas mining platform.

[0004] The utility model provides a natural gas mining platform flare regulating device, which comprises:

[0005] An anemometer comprising a rotating shaft and a wind bowl mechanism arranged on the rotating shaft;

[0006] A flare body, the gas inlet of which is connected to a fuel gas source through a gas pipeline; and

[0007] A flow control component is arranged in the gas pipeline, and is used to adjust the flow area of ​​the gas pipeline according to the wind speed measurement result of the anemometer to control the flow of the fuel gas.

[0008] In one embodiment, the flow control assembly includes a flow regulating valve and a flow calculator, and the flow calculator is electrically connected to the anemometer and the flow regulating valve respectively;

[0009] The flow calculator is used to calculate the required flow of the fuel gas and the opening of the flow control valve under the required flow according to the wind speed measurement result of the anemometer.

[0010] In one embodiment, the flow control assembly further includes a flow transmitter and a flow display electrically connected to the flow transmitter.

[0011] In one embodiment, the flow transmitter is also electrically connected to the flow computer.

[0012] In one embodiment, the rotating shaft is arranged vertically, and the flow control assembly includes a columnar valve block connected to the bottom of the rotating shaft, and the lower part of the valve block is embedded in the interior of the gas pipeline and can at least partially shield the flow path of the gas pipeline;

[0013] The anemometer further comprises a rotor mechanism disposed on the rotating shaft, and the rotor mechanism can drive the rotating shaft and the valve block to rise when rotating, so as to reduce the degree of shielding of the flow path of the gas pipeline by the flow control component.

[0014] In one embodiment, a joint pipe which is perpendicular and vertical to the gas pipeline is constructed on the gas pipeline, and the valve block is embedded in the gas pipeline through the joint pipe. The outer diameter of the valve block matches the inner diameter of the joint pipe.

[0015] In one embodiment, the joint pipe is a non-circular pipe; or

[0016] The joint pipe is a round pipe, and a first positioning groove or a first positioning block is constructed on the inner wall of the joint pipe. The valve block is provided with a second positioning block that cooperates with the first positioning groove or a second positioning groove that cooperates with the first positioning block. The first positioning groove and the second positioning groove both extend along the axial direction of the joint pipe.

[0017] In one embodiment, a limiting protrusion is provided on the inner wall of the pipe opening at one end of the joint pipe away from the gas pipeline, and the bottom of the limiting protrusion can abut against the top of the raised valve block.

[0018] In one embodiment, the outer diameter of the valve block is smaller than the inner diameter of the gas pipeline; or

[0019] The outer diameter of the valve block is consistent with the inner diameter of the gas pipeline, and the bottom of the valve block is configured as a tapered end, and the outer contour shape of the projection pattern of the tapered end on the plane where the cross section of the gas pipeline is located is inconsistent with the bottom contour shape of the cross section of the gas pipeline.

[0020] In one embodiment, a bottom of the rotating shaft is movably connected to the valve block, and the rotating shaft can rotate around its own axis relative to the valve block.

[0021] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the utility model can be achieved.

[0022] The utility model provides a natural gas mining platform torch adjustment device, which has at least the following beneficial effects compared with the prior art:

[0023] The utility model discloses a flare regulating device for a natural gas mining platform, which can automatically control the flow rate of the flare fuel gas according to the external wind speed, so as to flexibly adjust the combustion state of the flare. On the basis of ensuring the normal combustion and venting of the flare, it can save fuel gas energy and avoid the energy waste and large carbon emissions caused by the combustion in a fixed direction of the fuel gas flow rate currently adopted by the flare. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0025] Figure 1 The overall structural diagram of one embodiment of the regulating device of the utility model is shown;

[0026] Figure 2 A partial structural schematic diagram of a flow control component in another embodiment of the regulating device of the utility model is shown.

[0027] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0028] Reference numerals:

[0029] 1- anemometer, 11- rotating shaft, 12- wind bowl mechanism, 13- rotor mechanism, 2- torch body, 3- flow control assembly, 31- flow regulating valve, 32- flow calculator, 33- flow transmitter, 34- flow display, 35- valve block, 351- second positioning groove, 4- gas pipeline, 5- joint pipe, 51- first positioning block, 52- limiting protrusion. DETAILED DESCRIPTION

[0030] The utility model will be further described below in conjunction with the accompanying drawings.

[0031] Example 1

[0032] The embodiment of the utility model provides a flare adjustment device for a natural gas production platform, which comprises:

[0033] The anemometer 1 comprises a rotating shaft 11 and a wind bowl mechanism 12 arranged on the rotating shaft 11;

[0034] The torch body 2 has a gas inlet connected to a fuel gas source via a gas pipeline 4; and

[0035] The flow control component 3 is arranged in the gas pipeline 4. The flow control component 3 is used to adjust the flow area of ​​the gas pipeline 4 according to the wind speed measurement result of the anemometer 1 to control the flow of the fuel gas.

[0036] Specifically, the utility model is mainly aimed at the flare of the natural gas mining platform to adjust the flare combustion state under different wind speed environments. Figure 1 As shown, the regulating device mainly includes a torch body 2, a wind speed and flow control component 3, wherein the flow control component 3 is arranged on a gas pipeline 4 connecting the torch body 2 and a fuel gas source. The wind bowl mechanism 12 of the anemometer 1 can drive the rotating shaft 11 to rotate under the action of wind force, and then the wind speed can be reflected by the rotation speed of the rotating shaft 11. For example, a sensor for detecting the rotation speed of the rotating shaft 11, such as an encoder, can be further arranged inside the anemometer 1.

[0037] When in use, the anemometer 1 detects the wind speed at the torch body 2 in real time, and the flow control component 3 adjusts the flow area of ​​the gas pipeline 4 according to the detected wind speed. Its function is similar to that of a valve. When the wind speed is low, the flow control component 3 can reduce the flow area of ​​the gas pipeline 4, thereby reducing the flow of fuel gas and reducing the energy consumption of the torch; when the wind speed is high, the flow control component 3 can increase the flow area of ​​the gas pipeline 4, thereby increasing the flow of fuel gas and ensuring that the combustion effect of the torch is not affected by the high wind force.

[0038] Therefore, the regulating device of the utility model can automatically control the flow rate of the torch fuel gas according to the external wind speed, so as to flexibly adjust the combustion state of the torch. On the basis of ensuring the normal combustion and venting of the torch, it can save fuel gas energy and avoid the energy waste and large-scale carbon emissions caused by the fixed direction of combustion of the fuel gas flow rate currently adopted by the torch.

[0039] Furthermore, the flow control component 3 includes a flow regulating valve 31 and a flow calculator 32, and the flow calculator 32 is electrically connected to the anemometer 1 and the flow regulating valve 31 respectively; wherein the flow calculator 32 is used to calculate the required flow of the fuel gas and the opening of the flow regulating valve 31 under the required flow according to the wind speed measurement result of the anemometer 1.

[0040] Specifically, the flow control component 3 in this embodiment adopts an electric control structure, that is, the flow control component 3 is based on an electrically connected sensor and a control system, and cooperates with an electric control valve to realize automatic control and regulation of the flow. Figure 1 As shown, the flow control component 3 first includes a flow regulating valve 31 and a flow calculator 32. The flow calculator 32 is electrically connected to the anemometer 1 and can obtain the wind speed data obtained by the anemometer 1. The flow calculator 32 determines the flow data according to the wind speed data and determines the valve opening data according to the flow data (a mapping ratio is established in advance according to each data). The flow regulating valve 31 (solenoid valve) electrically connected to the flow calculator 32 adjusts its own opening according to the opening data, thereby realizing the adjustment of the flow area of ​​the gas pipeline 4.

[0041] Furthermore, the flow control component 3 also includes a flow transmitter 33 and a flow display 34 electrically connected to the flow transmitter 33 ; preferably, the flow transmitter 33 is also electrically connected to the flow calculator 32 .

[0042] Specifically, as shown in the attached figure Figure 1 As shown, the flow transmitter 33 is arranged downstream of the flow regulating valve 31, and is used to obtain the flow data in the gas pipeline 4, and can transmit the flow data to the flow display 34 for display, so as to show the flow data to the operator. At the same time, the flow transmitter 33 can also be electrically connected to the flow calculator 32 to realize feedback control, that is, after the flow calculator 32 cooperates with the flow regulating valve 31 to adjust the flow, the actual flow after adjustment can be further detected by the downstream flow transmitter 33. The flow calculator 32 can compare the actual flow with the flow data determined according to the wind speed data to determine whether the adjustment of the flow regulating valve 31 meets expectations. If it does not meet expectations, it can further send an adjustment signal to the flow regulating valve 31.

[0043] It should be noted that the attached drawings Figure 1 The distribution of the various components of the flow control group on the gas pipeline 4 shown in the figure is only for illustration, mainly to facilitate the understanding of the various components of the flow control group, and does not necessarily represent the actual installation position and installation method.

[0044] Example 2

[0045] The embodiment of the utility model provides a flare adjustment device for a natural gas production platform, which comprises:

[0046] The anemometer 1 comprises a rotating shaft 11 and a wind bowl mechanism 12 arranged on the rotating shaft 11;

[0047] The torch body 2 has a gas inlet connected to a fuel gas source via a gas pipeline 4; and

[0048] A flow control component 3, which is arranged on the gas pipeline 4, and is used to adjust the flow area of ​​the gas pipeline 4 according to the wind speed measurement result of the anemometer 1, so as to control the flow of the fuel gas;

[0049] Furthermore, the rotating shaft 11 is vertically arranged, and the flow control assembly 3 includes a columnar valve block 35 connected to the bottom of the rotating shaft 11, and the lower part of the valve block 35 is embedded in the interior of the gas pipeline 4 and can at least partially shield the flow path of the gas pipeline 4;

[0050] The anemometer 1 further includes a rotor mechanism 13 disposed on the rotating shaft 11 , which can drive the rotating shaft 11 and the valve block 35 to rise when rotating, so as to reduce the degree of shielding of the flow control component 3 on the flow path of the gas pipeline 4 .

[0051] Specifically, this embodiment is another implementation scheme that has been partially modified based on the overall scheme of Example 1. The main modification is made to the flow control component 3, and a purely mechanical structure is used to replace the electric control structure in Example 1, thereby eliminating the power supply, electric control module and other components required by the electric control structure. The relevant contents of the parts that have not been modified in this embodiment can be referred to Example 1, and will not be repeated here.

[0052] As shown in the attached picture Figure 2 As shown, the flow control assembly 3 of this embodiment adopts a mechanical structure, which mainly includes a valve block 35 connected to the bottom of the rotating shaft 11. The valve block 35 passes through the pipe wall of the gas pipeline 4 and is vertically embedded in the gas pipeline 4 (the valve block 35 and the gas pipeline 4 are sealed). The valve block 35 adopts a columnar structure, so it can at least partially cover the flow path of the gas pipeline 4. Based on the structure of the valve block 35, a rotor mechanism 13 is further provided on the rotating shaft 11 of the anemometer 1. The rotor mechanism 13 can be driven by the wind bowl mechanism 12 together with the rotating shaft 11, thereby generating lift, which can drive the rotating shaft 11 and the valve block 35 to rise.

[0053] In actual use, the rotating shaft 11 and the valve block 35 are located in the initial position under the action of gravity, that is, the lower part of the valve block 35 is completely embedded in the gas pipeline 4, and the shielding degree of the gas pipeline 4 reaches the maximum at this time. When the external wind force reaches a certain size, the rotating shaft 11 and the rotor mechanism 13 will reach a certain speed. At this time, the lift generated by the rotor mechanism 13 can overcome the gravity of the rotating shaft 11, the valve block 35 and other corresponding components and drive the valve block 35 to rise. The rise of the valve block 35 means that the lower part of the valve block 35 is gradually withdrawn from the gas pipeline 4, and then the shielding degree of the gas pipeline 4 is reduced, its circulation area is increased, and the flow rate of the fuel gas is increased. When the wind force decreases, the valve block 35 naturally drops a certain height under the action of gravity, that is, the shielding degree of the gas pipeline 4 is relatively increased, and then its circulation area. Among them, the specific height of the valve block 35 rising and falling caused by the wind force can be achieved by controlling the rotating shaft 11, the weight of the valve block 35 as a whole and the parameters of the rotor mechanism 13.

[0054] Therefore, based on the purely mechanical flow control structure proposed in this embodiment, the cooperation between the rotor mechanism 13 and the valve block 35 can automatically control the flow area of ​​the gas pipeline 4 according to the wind force, thereby realizing real-time automatic control without the need for additional electricity and control modules.

[0055] Preferably, a movable connection is adopted between the bottom of the rotating shaft 11 and the valve block 35, and the rotating shaft 11 can rotate around its own axis relative to the valve block 35, that is, the rotation of the rotating shaft 11 will not drive the valve block 35 to rotate, so the shape and structure of the valve block 35 can be set arbitrarily, and in this way, the valve block 35 has only one degree of freedom in one direction (that is, vertical lifting), and its structural stability and reliability are higher.

[0056] Optionally, the movable connection between the bottom of the rotating shaft 11 and the valve block 35 is achieved through a bearing, that is, the bearing is sleeved on the rotating shaft 11, and the outer ring of the bearing is fixedly connected to the valve block 35.

[0057] Further optionally, the bearing adopts a one-way bearing. Since the rotor mechanism 13 is used to provide lift for the valve block 35, and the rotor mechanism 13 will only generate lift when rotating in a specific direction, and will not generate lift when rotating in the opposite direction, it is necessary to avoid the possible reverse rotation of the rotor mechanism 13. The rotation direction of the rotor mechanism 13 can be basically controlled by controlling the orientation of the wind bowl of the wind bowl mechanism 12, and then the one-way bearing is used to further limit the reverse rotation of the rotating shaft 11. In addition, based on the rotation direction limiting structure of the one-way bearing, it is necessary to first ensure that the valve block 35 itself does not rotate, which can be achieved from the shape of the valve block 35 itself (for example, set to a non-cylindrical structure) or a rotation limiting structure is set for the valve block 35.

[0058] Furthermore, a joint pipe 5 perpendicular to the gas pipeline 4 and vertical to its axis is constructed on the gas pipeline 4 , and the valve block 35 is embedded in the gas pipeline 4 through the joint pipe 5 , and the outer diameter of the valve block 35 matches the inner diameter of the joint pipe 5 .

[0059] Specifically, as shown in the attached figure Figure 2 As shown, a joint pipe 5 similar to a tee structure is constructed on the gas pipeline 4 for convenient installation of the valve block 35. The valve block 35 matches the joint pipe 5 in shape and size, and the two are sealed. The joint pipe 5 can be constructed by drilling a hole on the pipe wall of the gas pipeline 4 and then welding a pipe section, or the gas pipeline 4 can be divided into two sections, and a tee is used to connect the two pipe sections, and the tee section is used as the joint pipe 5.

[0060] Furthermore, the joint pipe 5 is a non-circular pipe; or

[0061] The joint pipe 5 is a round pipe, and a first positioning groove or a first positioning block 51 is constructed on the inner wall of the joint pipe 5. The valve block 35 is provided with a second positioning block that cooperates with the first positioning groove or a second positioning groove 351 that cooperates with the first positioning block 51. Both the first positioning groove and the second positioning groove 351 extend along the axial direction of the joint pipe 5.

[0062] Specifically, based on the above content, the valve block 35 does not rotate with the rotating shaft 11 and has higher structural stability and reliability, so the joint pipe 5 and the valve block 35 can be set to be non-circular, for example, the joint pipe 5 is set to be a polygon and the valve block 35 is set to be a prismatic structure. It is also possible to set a rotation limiting structure between the joint pipe 5 and the valve block 35 based on the joint pipe 5 of a circular tube, that is, to set a structure in which a positioning groove and a positioning block cooperate to limit the rotation of the valve block 35. In this embodiment, a first positioning block 51 is constructed on the inner wall of the joint pipe 5, and a second positioning groove 351 that cooperates with the first positioning block 51 is provided on the outer wall of the valve block 35, and the cooperation between the first positioning block 51 and the second positioning groove 351 does not affect the lifting and lowering movement of the valve block 35.

[0063] Furthermore, a limiting protrusion 52 is provided on the inner wall of the pipe opening at one end of the joint pipe 5 away from the gas pipeline 4 , and the bottom of the limiting protrusion 52 can abut against the top of the valve block 35 after it rises.

[0064] Specifically, as shown in the attached figure Figure 1 As shown, the limiting protrusion 52 is used to limit the maximum height of the valve block 35 to prevent the valve block 35 from slipping out of the joint pipe 5. Optionally, the limiting protrusion 52 is set as an annular structure, the center of which has a through hole for the shaft 11 to pass through, and a sealing ring is set between the shaft 11 and the through hole, and the shaft 11 and the limiting protrusion 52 are used to strengthen the sealing of the joint pipe 5.

[0065] In addition, the specific arrangement of the limiting protrusion 52 on the joint pipe 5 can be adjusted according to specific circumstances. For example, if the inner diameter of the joint pipe 5 is small, it may not be very convenient to directly arrange the limiting protrusion 52 on its inner wall, so an end cap can be matched with an end cap at the pipe mouth of the joint pipe 5 through a threaded structure, and the end cap covers the pipe mouth of the joint pipe 5, and a through hole is provided in the center of the end cap for the rotation shaft 11 to pass through, so that the end cap itself can be used as the limiting protrusion 52 to limit the valve block 35.

[0066] Further, the outer diameter of the valve block 35 is smaller than the inner diameter of the gas pipeline 4; or

[0067] The outer diameter of the valve block 35 is consistent with the inner diameter of the gas pipeline 4, and the bottom of the valve block 35 is constructed as a tapered end. The outer contour shape of the projection pattern of the tapered end on the plane where the cross section of the gas pipeline 4 is located is inconsistent with the bottom contour shape of the cross section of the gas pipeline 4.

[0068] Specifically, the flow area of ​​the gas pipeline 4 is controlled based on the valve block 35. Since the valve block 35 and the rotating shaft 11 and other components have a certain weight, the wind force needs to reach a certain level before the rotor mechanism 13 can generate a sufficiently large lift to drive the valve block 35 to rise. In the case of low wind force, the valve block 35 may maintain the initial state in which the lower part is completely embedded in the gas pipeline 4 due to insufficient lift. In this case, it is necessary to ensure that the combustion of the torch is not affected. Therefore, the valve block 35 needs to be optimized so that it will not completely block the gas pipeline 4 even in the initial state.

[0069] Based on this requirement, the size can be considered, so that the outer diameter of the valve block 35 is smaller than the inner diameter of the gas pipeline 4, so that there is always a certain gap between the side of the valve block 35 and the inner wall of the gas pipeline 4, ensuring that the gas pipeline 4 always has a certain flow rate. It is also possible to start from the structure, setting the bottom of the valve block 35 to a cone and making the generatrix profile of the cone (on the plane where the cross section of the gas pipeline 4 is located) inconsistent with the profile of the bottom of the gas pipeline 4, for example, as shown in the figure Figure 2 As shown, the generatrix profile of the cone is a straight line, while the profile of the bottom of the gas pipeline 4 is an arc, so that the two will not fit completely and a gap will remain.

[0070] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0071] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. A flare adjustment device for a natural gas production platform, characterized in that: include: An anemometer comprising a rotating shaft and a wind bowl mechanism arranged on the rotating shaft; The torch body has a gas inlet connected to a fuel gas source through a gas pipeline; as well as A flow control component is arranged in the gas pipeline, and is used to adjust the flow area of ​​the gas pipeline according to the wind speed measurement result of the anemometer to control the flow of the fuel gas.

2. The natural gas production platform flare adjustment device according to claim 1, characterized in that: The flow control assembly includes a flow regulating valve and a flow calculator, and the flow calculator is electrically connected to the anemometer and the flow regulating valve respectively; The flow calculator is used to calculate the required flow of the fuel gas and the opening of the flow control valve under the required flow according to the wind speed measurement result of the anemometer.

3. The flare adjustment device for a natural gas production platform according to claim 2, characterized in that: The flow control assembly further includes a flow transmitter and a flow display electrically connected to the flow transmitter.

4. The flare adjustment device for a natural gas production platform according to claim 3, characterized in that: The flow transmitter is also electrically connected to the flow calculator.

5. The flare adjustment device for a natural gas production platform according to claim 1, characterized in that: The rotating shaft is arranged vertically, and the flow control assembly comprises a columnar valve block connected to the bottom of the rotating shaft, and the lower part of the valve block is embedded in the interior of the gas pipeline and can at least partially shield the flow path of the gas pipeline; The anemometer further comprises a rotor mechanism disposed on the rotating shaft, and the rotor mechanism can drive the rotating shaft and the valve block to rise when rotating, so as to reduce the degree of shielding of the flow path of the gas pipeline by the flow control component.

6. The flare adjustment device for a natural gas production platform according to claim 5, characterized in that: The gas pipeline is provided with a joint pipe which is perpendicular to the gas pipeline's axis and vertical. The valve block is embedded in the gas pipeline through the joint pipe. The outer diameter of the valve block matches the inner diameter of the joint pipe.

7. The flare adjustment device for a natural gas production platform according to claim 6, characterized in that: The joint pipe is a non-circular pipe; or The joint pipe is a round pipe, and a first positioning groove or a first positioning block is constructed on the inner wall of the joint pipe. The valve block is provided with a second positioning block that cooperates with the first positioning groove or a second positioning groove that cooperates with the first positioning block. The first positioning groove and the second positioning groove both extend along the axial direction of the joint pipe.

8. The flare adjustment device for a natural gas production platform according to claim 6, characterized in that: A limiting protrusion is arranged on the inner wall of the pipe opening at one end of the joint pipe away from the gas pipeline, and the bottom of the limiting protrusion can abut against the top of the valve block after it rises.

9. The flare adjustment device for a natural gas production platform according to any one of claims 5 to 8, characterized in that: The outer diameter of the valve block is smaller than the inner diameter of the gas pipeline; or The outer diameter of the valve block is consistent with the inner diameter of the gas pipeline, and the bottom of the valve block is configured as a tapered end, and the outer contour shape of the projection pattern of the tapered end on the plane where the cross section of the gas pipeline is located is inconsistent with the bottom contour shape of the cross section of the gas pipeline.

10. The flare adjustment device for a natural gas production platform according to any one of claims 5 to 8, characterized in that: The bottom of the rotating shaft is movably connected to the valve block, and the rotating shaft can rotate around its own axis relative to the valve block.

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