Blowout device and gas production equipment

Abstract

The present invention provides a blowout device and gas production equipment, which relate to the field of oil and gas production. The blowout device includes: a blowout pipe and an expansion pipe; the expansion pipe is sleeved on the outer side of the tail end of the blowout pipe and fixed to the blowout pipe, and a channel for fluid flow is formed between the expansion pipe and the blowout pipe; the front end of the expansion pipe is provided with at least one through hole, and the through hole is used to cooperate with the oil and gas sprayed from the tail end of the blowout pipe to form a negative pressure in the channel, so as to suck the air near the through hole into the channel; an ignition mechanism is provided near the through hole, and the ignition mechanism is used to ignite the mixed gas of the oil and gas and air. The blowout device and gas production equipment of the present invention can form a negative pressure in the channel when the oil and gas are sprayed from the tail end of the blowout pipe, so as to suck the air near the through hole into the channel, and ignite the mixed gas of the oil and gas and air through the ignition mechanism, thereby improving the efficiency of ignition and the safety of personnel operation.

Description

Technical Field

[0001] The invention relates to the field of oil and gas production, and in particular to a spraying device and gas production equipment. Background Art

[0002] In oil and gas exploration and development, before drilling a well, the oil and gas in the well need to be sprayed out to the outside under human control to remove residual impurities at the bottom of the well, increase the oil and gas production temperature, and avoid the formation of hydrates that cause wellbore blockage. This process is called blowdown in oil and gas production. Since a large amount of oil and gas is sprayed out from the blowdown pipeline during the blowdown process, in order to ensure that these oil and gas do not pollute the external environment, the oil and gas sprayed out from the blowdown pipeline are usually burned by combustion.

[0003] In field operations, manual ignition is generally used to ignite the oil and gas sprayed from the blower line. For example, a ignited fire starter is hung on the blower head at the end of the blower line, so that when the valve on the blower line is opened to allow the oil and gas to spray from the blower head at the end of the blower line, the sprayed oil and gas can be ignited by the fire source hung on the blower head.

[0004] However, since the existing nozzle heads are generally arranged above the nozzle pool and are relatively high from the bottom of the pool, it is very difficult for workers to hang the fire source on the nozzle head, and the fire source often falls and burns or scalds the workers. Summary of the invention

[0005] The object of the present invention is to provide a blowdown device and a gas production equipment to solve the above-mentioned defects in the prior art and to improve the safety of the blowdown operation during the gas production process.

[0006] In one aspect, the present invention provides a spraying device, comprising: a spraying pipe and a pipe expansion;

[0007] The expansion pipe sleeve is arranged on the outer side of the tail end of the nozzle discharge pipe and is fixed to the nozzle discharge pipe, and a channel for fluid flow is formed between the expansion pipe and the nozzle discharge pipe;

[0008] The front end of the expansion pipe is provided with at least one through hole, and the through hole is used to cooperate with the oil gas sprayed from the tail end of the discharge nozzle to form a negative pressure in the channel, so as to suck the air near the through hole into the channel;

[0009] An ignition mechanism is arranged near the through hole, and the ignition mechanism is used to ignite the mixed gas of the oil gas and air.

[0010] Optionally, the expansion pipe includes a pipe wall and a front end face inclined to the nozzle, and the through hole is arranged on the front end face or on the pipe wall.

[0011] Optionally, there are multiple through holes, and the multiple through holes are evenly arranged on the outer circumference of the nozzle.

[0012] Optionally, at least two circles of through holes are arranged around the nozzle.

[0013] Optionally, the front end surface of the expansion pipe is threadedly connected to the nozzle.

[0014] Optionally, the length of the nozzle extending into the expansion pipe is greater than the distance from the through hole to the front end of the expansion pipe.

[0015] Optionally, a bracket is further included, wherein the bracket is arranged in the expansion pipe, and one end of the bracket is fixed to the inner wall of the expansion pipe, and the other end of the bracket is fixed to the outer wall of the nozzle.

[0016] Optionally, the ignition mechanism is an ignition basin, and the ignition basin is hung on the expansion pipe.

[0017] Optionally, the ignition mechanism is a pulse igniter, and the pulse igniter includes an ignition switch, a high-voltage component and an ignition needle;

[0018] The ignition needle passes through the through hole and extends into the expansion tube, and extends toward the end of the discharge nozzle;

[0019] The high voltage component is electrically connected to the ignition needle;

[0020] The ignition switch is electrically connected to the high voltage component and is used to control the high voltage component to generate an arc on the ignition needle to ignite the mixed gas of oil, gas and air.

[0021] Another aspect of the present invention provides a gas production equipment, comprising: a gas production tree and the above-mentioned blowing device, wherein the blowing port of the gas production tree is connected to the blowing pipe of the blowing device.

[0022] The present invention proposes a blowout device and gas production equipment, wherein the blowout device includes a blowout pipe and an expansion pipe, the front end of the expansion pipe is sleeved and fixed on the rear end of the blowout pipe, so that a channel for fluid flow is formed between the blowout pipe and the expansion pipe; and a through hole is also provided at the front end of the expansion pipe. In this way, after the blowout starts, the tail end of the blowout pipe sprays out high-speed flowing oil and gas, which cooperates with the through hole to form a negative pressure in the channel between the blowout pipe and the expansion pipe, and the air near the through hole is sucked into the channel by the negative pressure, and the oil and gas and air mixed gas at the tail end of the blowout pipe is ignited by an ignition mechanism provided near the through hole to ignite the oil and gas, and the ignited mixed gas is sprayed out from the tail end of the expansion pipe, thus avoiding the need to hang an ignition device at the tail end of the blowout pipe to realize blowout ignition, thereby improving the safety of the ignition operation during the gas production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0024] Figure 1 is a front view of a first spraying device provided in Example 1;

[0025] Figure 2 It is a left side view of the first spraying device provided in the first embodiment;

[0026] Figure 3 It is a left side view of the second spraying device provided in the first embodiment;

[0027] Figure 4 is a front view of a third spraying device provided in Example 1;

[0028] Figure 5 is a front view of a fourth spraying device provided in Example 2;

[0029] Figure 6 is a front view of a fifth spraying device provided in Example 2;

[0030] Figure 7 is a right side view of the fifth spraying device provided in the second embodiment;

[0031] Figure 8 is a schematic diagram of the support structure provided in Example 2;

[0032] Fig. 9 It is a front view of the sixth spraying device provided in the second embodiment.

[0033] Reference numerals:

[0034] 10: nozzle; 101: nozzle valve; 20: pipe expansion;

[0035] 201: front end surface; 202: through hole; 203: channel;

[0036] 30: bracket; 301: outer ring; 302: inner ring;

[0037] 40: gas tree; 401: nozzle; 50: fire basin;

[0038] 601: ignition switch; 602: high voltage component; 603: ignition needle.

[0039] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0041] The following specific embodiments are used to describe in detail the technical solutions of the present invention and how the technical solutions of the present application solve the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0042] It should be noted that the terms "first", "second", "third", "up", "down", "front", "rear", "left", "right", etc. in the specification, claims and drawings of the present invention indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] Embodiment 1

[0044] Figure 1 It is a front view of the first spraying device provided in this embodiment. Figure 2 It is a left view of the first spraying device provided in this embodiment. Figure 3 It is a left view of the second spraying device provided in this embodiment. Figure 4 It is a front view of the third spraying device provided in this embodiment.

[0045] Please refer to Figure 1-Figure 4 The spraying device provided in this embodiment includes: a spraying pipe 10 and an expansion pipe 20; the expansion pipe 20 is sleeved on the outer side of the tail end of the spraying pipe 10 and fixed to the spraying pipe 10, and a channel 203 for fluid flow is formed between the expansion pipe 20 and the spraying pipe 10. At least one through hole 202 is provided at the front end of the expansion pipe 20, and the through hole 202 is used to cooperate with the oil and gas sprayed from the tail end of the spraying pipe 10 to form a negative pressure in the channel 203, so as to suck the air near the through hole 202 into the channel 203.

[0046] An ignition mechanism is provided near the through hole 202, and the ignition mechanism is used to ignite the mixed gas of oil, gas and air at the tail end of the discharge nozzle.

[0047] Specifically, in this embodiment, the nozzle 10 can be a circular steel pipe with a smooth inner wall to prevent solid impurity particles mixed in the oil and gas from adhering to the inner wall of the nozzle 10 during the nozzle release process. It is easy to understand that since the expansion pipe 20 needs to be sleeved on the outside of the nozzle 10, the shape of the inner surface of the expansion pipe 20 matches the shape of the outer surface of the nozzle 10. For example, assuming that the nozzle 10 is a circular steel pipe, the expansion pipe 20 can be a circular steel pipe with a radius greater than the nozzle 10 to ensure that the fluid flows unimpeded in the channel formed between the expansion pipe 20 and the nozzle 10. Here, this embodiment is only an exemplary display of the optional forms of the expansion pipe 20 and the nozzle 10. Of course, the nozzle 10 and the expansion pipe 20 can also be square tubes or any other suitable forms, and this embodiment does not specifically limit them.

[0048] In order to avoid the relative movement of the nozzle 10 and the expansion tube 20, the outer side of the tail end of the nozzle 10 is fixedly connected to the expansion tube 20. For example, the front end of the expansion tube 20 is provided with a front end face 201, and the front end face 201 is provided with a mounting hole for the tail end of the nozzle 10 to pass through, and the expansion tube 20 and the nozzle 10 are fixedly connected through the front end face 201. In this embodiment, the tail end of the nozzle 10 can pass through the through hole of the front end face of the expansion tube 20 and the expansion tube 20 to be fixed together. For example, the pipe wall of the tail end of the nozzle 10 and the hole wall of the mounting hole on the front end face 201 can be welded to realize the reliable connection of the expansion tube 20 and the nozzle 10. Of course, the expansion tube 20 and the nozzle 10 are detachably connected, for example, threaded connection can be adopted. In this way, the front end face 201 of the expansion tube 20 is detachably fixed to the tail end of the nozzle 10 through a threaded structure, which is not only simple and reliable to install and operate, but also convenient for the replacement and maintenance of the expansion tube 20. In an optional specific example, the front end face 201 of the expansion tube 20 and the rear end of the discharge nozzle 10 can be connected in a snap-fit ​​manner, that is, a protrusion is provided on the wall of the installation hole on the front end face 201 of the expansion tube 20 for the rear end of the discharge nozzle 10 to pass through, and a groove corresponding to the protrusion is provided on the outer wall of the rear end of the discharge nozzle 10, and the discharge nozzle 10 and the expansion tube 20 are fixed by the installation cooperation of the groove and the protrusion. Of course, there are many other optional fixing methods, and this embodiment is only an exemplary display and does not specifically limit the connection method of the expansion tube 20 and the discharge nozzle 10.

[0049] Please refer to Figure 1In this embodiment, the front end face 201 of the expansion tube 20 is arranged perpendicular to the tube wall of the expansion tube 20; of course, in some embodiments, the front end face 201 of the expansion tube 20 can also be arranged obliquely toward the nozzle 10; for example, in some other embodiments, the front end face 201 of the expansion tube 20 can also be arranged as an arc surface structure. It should be understood that during the nozzle release process, the front end face 201 can adopt any suitable shape under the condition that the front end of the expansion tube 20 and the nozzle 10 form a negative pressure, so the form of the front end face 201 is not specifically limited here.

[0050] Specifically, the front end face 201 and the side wall of the expansion tube 20 can be an integrally formed structure or detachably connected. For example, in some examples, the front end face 201 can be connected to the side wall of the expansion tube 20 by welding. For another example, in some other embodiments, the front end face 201 and the side wall of the expansion tube 20 can be detachably connected by a connector, for example, the connector can be in different forms such as bolts and screws. If necessary, a sealing ring can also be laid at the connection between the front end face 201 and the side wall of the expansion tube 20 to achieve the connection sealing of the front end face 201 and the side wall of the expansion tube 20, so as to ensure that it is conducive to forming a negative pressure between the front end of the expansion tube 20 and the nozzle 10 during the spraying process. For another example, in this embodiment, the front end face 201 and the side wall of the expansion tube 20 can be an integrally formed structure, for example, the front end face 201 and the side wall of the expansion tube 20 are a stamping integrally formed structure to simplify the process and save costs.

[0051] Specifically, in this embodiment, please refer to Figure 1-Figure 2 , the expansion pipe 20 and the discharge nozzle 10 can be concentrically sleeved together, that is, the center line of the expansion pipe 20 coincides with the center line of the discharge nozzle 10, so that it is conducive to forming a uniform channel 203 for fluid flow between the discharge nozzle 10 and the expansion pipe 20, so that the air sucked through the through hole 202 can be uniformly mixed with the oil and gas sprayed through the tail end of the discharge nozzle 10, and the mixed gas of oil and gas and air is ignited through the action of the ignition mechanism, so that the oil and gas sprayed through the discharge nozzle 10 are fully burned. Of course, the expansion pipe 20 and the discharge nozzle 10 can also be eccentrically sleeved together, which is not particularly limited in this embodiment.

[0052] In this embodiment, the shape and number of the through holes 202 provided at the front end of the expansion tube 20 are not specifically limited, and those skilled in the art can set them according to actual needs. For example, in some examples, the through holes 202 can be designed as round holes, elliptical holes, or closed or open annular holes. For example, in some examples, an annular slit can be formed by the front end surface of the expansion tube 20 and the outer wall of the nozzle 10 so as to be used as an annular through hole.

[0053] Please refer to Figure 2In other examples, an arc-shaped hole can also be opened on the front end surface 201 of the expansion tube 20 as the through hole 202. During the spraying process, the spraying tube 10 sprays out high-speed flowing oil and gas. The high-speed flowing oil and gas rub in the channel 203 between the inner wall of the expansion tube 20 and the outer wall of the spraying tube 10, so that a negative pressure is formed at the front end of the expansion tube 20. The air near the arc-shaped hole is sucked into the expansion tube 20 and flows along the fluid channel 203 formed by the expansion tube 20 and the spraying tube 10 to mix with the oil and gas sprayed from the tail end of the spraying tube 10 to form a mixed gas. Under the action of the ignition mechanism, the mixed gas is ignited to realize the spraying ignition.

[0054] In some other examples, refer to Figure 3 When the amount of spraying is not large and the diameter of the spraying pipe 10 is relatively thin, in order to ensure that a negative pressure is formed between the front end of the expansion pipe 20 and the spraying pipe 10 during the spraying process, a plurality of circular holes with smaller apertures can be arranged at intervals on the front end face 201 to replace the arc-shaped holes as the through holes 202. For example, five circular holes can be arranged at the lower part of the front end face 201 as through holes, and the air near the five circular holes is sucked into the expansion pipe 20 and then mixed with the oil and gas sprayed from the tail end of the spraying pipe 10, and the mixed gas is ignited by the ignition mechanism to realize the spraying ignition. Here, it should be noted that those skilled in the art should understand that the shape, size and number of the through holes 202 can be selected in any suitable form according to the actual amount of spraying to achieve the best spraying effect, and this embodiment does not specifically limit it.

[0055] Please refer to Figure 2 and Figure 3 In this embodiment, all the through holes 202 are arranged on the front end face 201 of the expansion tube 20, and the external air is sucked into the expansion tube 20 through the through holes 202 on the front end face 201 during the spraying process. In other optional examples, all the through holes 202 are arranged on the tube wall of the expansion tube 20. In other optional examples, the through holes 202 can be arranged on the front end face 201 of the expansion tube 20 and the side wall of the expansion tube 20 at the same time, so that the number of through holes 202 on the expansion tube 20 is increased, so that more air enters the expansion tube 20 through the through holes 202, so that the oil and gas sprayed through the spraying pipe 10 can be burned more fully, and the incomplete combustion of the sprayed material can be avoided to pollute the atmosphere.

[0056] Furthermore, the length of the discharge nozzle 10 extending into the expansion pipe 20 is greater than the distance from the through hole 202 to the front end of the expansion pipe 20, that is, the length of the pipeline from the tail end of the discharge nozzle 10 extending into the expansion pipe 20 must ensure that all the through holes 202 on the expansion pipe 20 are located at the front end of the oil and gas outlet at the tail end of the discharge nozzle 10. In this way, it is prevented that the oil and gas sprayed from the tail end of the discharge nozzle 10 flows out of the expansion pipe 20 through the through hole 202 and is discharged into the air, causing pollution to the atmosphere. At the same time, it is also prevented that the oil and gas may be sprayed onto the operator behind the discharge nozzle device, causing a safety hazard.

[0057] Further, if Figure 1 As shown, an ignition mechanism is also provided below the through hole 202, and the ignition mechanism is used to form a flame near the through hole 202, so as to ignite the mixed gas of air and oil and gas in the expansion pipe, and realize the ignition of the gas well during the oil production process. For example, in some examples, the ignition mechanism can be in the form of an ignition basin 50, and the ignition basin is used to hold igniting materials, such as oilcloth, etc. Specifically, when setting, the ignition basin 50 is hung on the expansion pipe 20, that is, the ignition basin 50 can be hung below the through hole 202 through a structure such as a wire rope. Taking the wire rope as an example, during assembly, one end of the wire rope is sheathed around the ignition basin 50, and the other end of the wire rope is hung on the through hole 202 by providing a hook, so that the ignition basin 50 is hung below the through hole 202, and the length of the wire rope can also be adjusted to ensure that the flame in the ignition basin 50 is gathered near the through hole 202, so that the flame near the through hole 202 is sufficient, and prepares for the ignition of the ignition operation.

[0058] It should be noted that the number and position of the ignition mechanisms can be determined according to the needs of the on-site spraying. This is only an exemplary display of optional implementation methods. For example, when the on-site spraying volume is large, the diameters of the spraying pipe 10 and the expansion pipe 20 are correspondingly large, and a corresponding ignition mechanism can be provided below each through hole 202 to meet the sufficient flame required near all through holes 202; correspondingly, when the on-site spraying volume is small, the diameters of the spraying pipe 10 and the expansion pipe 20 are small, so the aperture of the corresponding through hole 202 on the expansion pipe 20 is small, and an ignition mechanism can be provided below the through hole 202. It can meet the flame demand near the through hole 202; therefore, the number of ignition mechanisms can be adaptively adjusted according to the size of the specific discharge volume and the diameter ratio of the discharge nozzle 10 and the expansion tube 20. For example, by adjusting the number of ignition mechanisms or adjusting the diameter ratio of the discharge nozzle 10 and the expansion tube 20, the mixed ratio of the mixed oil and gas formed between the discharge nozzle 10 and the expansion tube 20 is avoided to be within the explosion limit of the oil and gas. If it is within the explosion limit, it is likely to cause deflagration and cause the flame to spray back from the through hole 202. Therefore, those skilled in the art can set it according to the use requirements, and no specific limitation is made here. In addition, it should be understood that the flame demand near the through hole 202 refers to the flame formed near the through hole 202 is sufficient to ignite the oil and gas mixture in the expansion tube.

[0059] Furthermore, the ignition mechanism may also use a pulse igniter. Figure 4As shown, the pulse igniter may include an ignition switch 601, a high-voltage component 602 and an ignition needle 603; the ignition needle 603 extends through the through hole 202 into the expansion tube 20 and extends toward the end of the discharge nozzle 10, and the high-voltage component 602 and the ignition needle 603 are electrically connected; the ignition switch 601 is electrically connected to the high-voltage component 602, and is used to control the high-voltage component 602 to generate an arc on the ignition needle 603 to ignite the mixture of oil, gas and air in the expansion tube 20.

[0060] For example, in this embodiment, please continue to refer to Figure 4 A touch switch is used as the ignition switch 601, and the touch switch can be fixed on the wall of the nozzle 10 (such as Figure 4 The touch switch is electrically connected to the high voltage assembly 602 via a cable. Here, it should be noted that the ignition switch 601 may also be a handheld remote control switch, which is not specifically limited in this embodiment.

[0061] like Figure 4 As shown, the high-voltage assembly 602 is fixed to one end of the ignition needle 603, and the other end of the ignition needle 603 extends toward the tail end of the discharge nozzle, for example, the length of the ignition needle 603 is aligned with the tail end of the discharge nozzle 10. Of course, in some other examples, the ignition needle 603 can be extended to any length as long as it can ignite the oil and gas sprayed from the tail end of the discharge nozzle 10.

[0062] When the nozzle is opened for spraying, the oil and gas sprayed from the tail end of the nozzle 10 mix with the air in the expansion tube 20. At this time, by clicking the touch ignition switch 601, the ignition switch 601 controls the high-voltage component 602 to generate an arc on the ignition needle 603 to ignite the mixed gas of oil and gas and air in the expansion tube 20, thereby realizing spraying ignition.

[0063] The spraying device proposed in this embodiment includes a spraying pipe 10 and an expansion pipe 20. The front end of the expansion pipe 20 is sleeved on the rear end of the spraying pipe 10. At the same time, a through hole 202 is provided at the front end of the expansion pipe 20, so that a channel 203 for fluid flow is formed between the spraying pipe 10 and the expansion pipe 20. After the spraying starts, the tail end of the spraying pipe 10 sprays high-speed oil and gas to rub against the inner wall of the rear end of the expansion pipe 20, so that negative pressure is formed at the front end of the expansion pipe 20. The air near the through hole 202 is sucked into the expansion pipe 20 and flows along the channel 203 formed by the expansion pipe 20 and the spraying pipe 10 to mix with the oil and gas sprayed from the tail end of the spraying pipe to form a mixed gas. The mixed gas is ignited under the action of the ignition mechanism to realize the spraying ignition. In this way, it is avoided to directly hang the ignition device at the tail end of the spraying pipe 10 to realize the spraying ignition, and the safety of the spraying ignition operation during the gas production process is improved.

[0064] Embodiment 2

[0065] Figure 5It is a front view of the fourth spraying device provided in this embodiment. Figure 6 It is a front view of the fifth spraying device provided in this embodiment. Figure 7 It is a right side view of the fifth spraying device provided in this embodiment. Figure 8 Schematic diagram of the support structure provided in this embodiment. Fig. 9 This is a front view of the sixth type of spray device provided in this embodiment. Figure 5-Figure 9 Based on the above embodiments, this embodiment proposes an improved spraying device.

[0066] In this embodiment, the front end surface 201 of the expansion pipe 20 is arranged to be inclined with respect to the nozzle 10, that is, Figure 5 As shown, the front end face 201 faces from top to bottom Figure 5 Left tilt setting in .

[0067] Please refer to Figure 6-Figure 9 In this embodiment, a bracket 30 is provided in the expansion pipe 20 to fix the expansion pipe 20 and the nozzle 10. The bracket 30 is provided in the expansion pipe 20, and one end of the bracket 30 is fixed to the inner wall of the expansion pipe 20, and the other end of the bracket 30 is fixed to the outer wall of the nozzle 10.

[0068] Please continue to refer to Figure 7 In this embodiment, the support 30 can be four support columns evenly arranged along the circumference of the nozzle 10, and the two ends of the support columns can be fixed to the inner wall of the expansion pipe 20 and the outer wall of the nozzle 10 by welding to fix the nozzle 10 and the expansion pipe 20; of course, the support 30 can be in the form of any suitable number and structure of support columns. Figure 8 As shown, the bracket 30 can also adopt a disc-shaped structure with a through hole, the outer ring 301 of the disc bracket can be welded on the inner wall of the expansion tube 20, and the inner ring 302 of the disc bracket and the outer side of the tail end of the discharge nozzle 10 can be threaded, so as to achieve a fixed connection between the expansion tube 20 and the discharge nozzle 10. Of course, the inner ring 302 of the disc bracket can also be directly sleeved on the outer side of the tail end of the discharge nozzle 10, that is, the expansion tube and the discharge nozzle are an integrated structure, so that when the discharge nozzle is ignited and burned, the materials of both can produce the same degree of thermal deformation as the temperature rises, avoiding damage to the device caused by uneven thermal deformation. The setting method is not limited here, and can be reasonably set according to the specific use scenario. Here, it should be noted that the setting form of the bracket 30 should ensure that a channel 203 for fluid to flow through is formed at the support of the expansion tube 20 and the discharge nozzle 10 to provide a channel for air and flame during the discharge nozzle process.

[0069] Furthermore, the front end surface 201 of the expansion tube 20 and the tube wall of the nozzle 10 can also be made of Fig. 9In the structure shown, during the spraying process, the tail end of the spraying pipe 10 sprays high-speed oil and gas, and the front end of the expansion pipe 20 and the tail end of the spraying pipe 10 spray high-speed oil and gas to form a relative negative pressure to suck air from the front end of the expansion pipe 20 into the expansion pipe 20 and mix it with the oil and gas sprayed from the spraying pipe, and ignite the mixed gas through the ignition mechanism to achieve spraying ignition. The size of the gap between the front end surface 201 of the expansion pipe 20 and the pipe wall of the spraying pipe 10 can be determined according to the specific spraying amount to achieve the corresponding spraying ignition effect.

[0070] Furthermore, there may be a plurality of through holes 202, and the plurality of through holes 202 are evenly arranged on the outer circumference of the discharge nozzle 10. For example, in some examples, a circle of through holes 202 may be evenly arranged on the front end face 201 along the circumferential direction of the discharge nozzle 10, that is, the through holes 202 are evenly arranged on the front end face 201, so that the fluid flow channel 203 formed between the expansion pipe 20 and the discharge nozzle 10 has corresponding through holes 202 along the circumferential direction of the pipeline. During the discharge process, a circle of through holes 202 evenly arranged on the front end face 201 evenly inhales the outside air into the channel 203 between the expansion pipe 20 and the discharge nozzle 10, thereby ensuring the uniformity of the discharge ignition and facilitating the full combustion of the oil and gas sprayed through the discharge nozzle 10. It should be understood that when the diameter of the expansion pipe 20 is larger than the diameter of the nozzle 10, two, three or even more circles of through holes 202 can be evenly arranged on the front end surface 201 along the circumferential direction of the nozzle 10. By increasing the number of through holes 202, more air can enter the expansion pipe 20 during the nozzle blowing process, which is beneficial to the complete combustion of the blown oil and gas.

[0071] For example, in some other examples, a circle of through holes 202 may be evenly arranged on the wall of the expansion tube 20 along the circumferential direction of the nozzle 10. Similarly, according to the actual nozzle volume requirement, multiple circles of through holes 202 may be evenly arranged on the wall of the expansion tube 20 along the circumferential direction of the nozzle 10. For example, in this embodiment, the through holes 202 may be arranged in the form of Figure 5 In the arrangement shown in the figure, a circle of through holes 202 is evenly arranged on the front end face 201 along the circumferential direction of the discharge nozzle 10, and at the same time, a circle of through holes 202 is evenly arranged on the tube wall of the expansion tube 20 along the circumferential direction of the discharge nozzle 10; it should be noted here that when the discharge amount is large, the number of circles of through holes 202 on the front end face 201 or the tube wall of the expansion tube 20 can be increased, that is, by arranging at least two circles of through holes 202 around the discharge nozzle 10 on the discharge nozzle 10, it is ensured that during the discharge process, enough air enters the expansion tube 20 and is fully mixed with the oil and gas sprayed through the tail end of the discharge nozzle 10, so that the oil and gas are fully burned.

[0072] Furthermore, a plurality of ignition mechanisms are arranged near the through hole 202 along the circumferential direction of the expansion tube 20. Specifically, when the amount of spraying is large, the flame required for ignition is ensured by increasing the number of through holes 202. For example, an ignition basin 50 can be hung under each through hole 202 to ensure the required amount of flame near each through hole 202 and achieve a good spraying ignition effect. The ignition basin 50 can be hung on the spraying tube 10 or the expansion tube 20 by a rope, and the position of the ignition basin 50 can be set according to the specific size of the spraying pipe on site, which is not particularly limited in this embodiment.

[0073] For further information, please refer to Fig. 9 The spraying pipe 10 may also be provided with a spraying valve 101 to control the on / off of the spraying pipe 10 to start or stop the spraying operation. The spraying valve 101 may be any valve suitable for controlling the on / off of the spraying pipe 10 or regulating the flow rate, and is not specifically limited here.

[0074] like Fig. 9 As shown, this embodiment provides a gas production equipment, including: a gas production tree 40 and the above-mentioned blowing device, the lower end of the gas production tree 40 is connected to the gas well, and the upper end of the gas production tree 40 is provided with two gas outlet branches, one gas outlet branch is used as a blowing branch, and the other gas outlet branch is used as a gas production branch, the blowing port 401 of the blowing branch on the gas production tree 40 is connected to the blowing pipe 10 of the blowing device, before the blowing operation is performed on the gas well, the ignition mechanism is ignited first, and after the flame in the ignition mechanism burns evenly, the blowing valve 101 on the blowing pipe is opened to start the blowing operation, and when the blowing is finished, the blowing is stopped by closing the blowing valve 101.

[0075] The gas production equipment provided in this embodiment adopts the above-mentioned blowing device, and the gas production equipment includes a gas production tree 40 for producing oil and gas. Before gas production, the blowing branch is opened to ignite impurities and toxic gases in the gas well through the blowing device. After the impurities in the gas well are discharged, the gas production branch is opened to carry out oil and gas production, thereby increasing the purity of gas production, improving the gas production efficiency, and thus improving the gas production quality.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spraying device, characterized in that: include: Place the nozzle and expand the pipe; The expansion pipe sleeve is arranged on the outer side of the tail end of the nozzle discharge pipe and is fixed to the nozzle discharge pipe, and a channel for fluid flow is formed between the expansion pipe and the nozzle discharge pipe; The front end of the expansion pipe is provided with at least one through hole, and the through hole is used to cooperate with the oil and gas sprayed from the tail end of the nozzle to form a negative pressure in the channel, so as to suck the air near the through hole into the channel and flow along the channel to mix with the oil and gas sprayed from the tail end of the nozzle to form a mixed gas; An ignition mechanism is arranged near the through hole, and the ignition mechanism is used to ignite the mixed gas; The expansion pipe includes a pipe wall and a front end face inclined to the nozzle, and the through hole is arranged on the front end face or on the pipe wall; The length of the nozzle extending into the expansion pipe is greater than the distance from the through hole to the front end of the expansion pipe.

2. The spraying device according to claim 1, characterized in that: There are multiple through holes, and the multiple through holes are evenly arranged on the outer periphery of the nozzle.

3. The spraying device according to claim 2, characterized in that: At least two circles of through holes are arranged around the nozzle.

4. The spraying device according to claim 1, characterized in that: The front end surface of the expanded pipe is threadedly connected to the nozzle.

5. The spraying device according to any one of claims 1 to 4, characterized in that: It also includes a bracket, which is arranged in the expansion pipe, and one end of the bracket is fixed to the inner wall of the expansion pipe, and the other end of the bracket is fixed to the outer wall of the nozzle.

6. The spraying device according to any one of claims 1 to 4, characterized in that: The ignition mechanism is an ignition basin, and the ignition basin is hung on the expansion pipe.

7. The spraying device according to any one of claims 1 to 4, characterized in that: The ignition mechanism is a pulse igniter, which includes an ignition switch, a high-voltage component and an ignition needle; The ignition needle passes through the through hole and extends into the expansion tube, and extends toward the end of the discharge nozzle; The high voltage component is electrically connected to the ignition needle; The ignition switch is electrically connected to the high voltage component and is used to control the high voltage component to generate an arc on the ignition needle to ignite the mixed gas of oil, gas and air.

8. A gas production equipment, characterized in that: include: A gas tree and a blowing device as claimed in any one of claims 1 to 7, wherein the blowing port of the gas tree is connected to the blowing pipe of the blowing device.

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