Explosion-proof ignition equipment

Abstract

The utility model discloses anti-explosion ignition equipment which comprises an ignition body, a covering plate is arranged at the upper end of the ignition body, a supporting frame and an adjusting rod are arranged on the side edge of the ignition body, the covering plate covers the top of the ignition body and is arranged at the top of the supporting frame, and the supporting frame is adjustably arranged on the ignition body; due to the arrangement of the covering plate, the supporting frame and the adjusting rod, when the ignition equipment does not work, a worker can lift the adjusting rod, control the supporting frame and the covering plate to ascend and enable the lower end of the blocking column to be higher than the top face of the combustion cylinder, and at the moment, the worker operates the supporting frame to rotate, so that the covering plate 2 and the blocking column are located above the combustion cylinder; then, the covering plate and the blocking column can cover the combustion cylinder and the gas conveying pipe respectively, the current situation that plastic cloth and the like are manually wrapped on ignition equipment by means of a climbing tool and the plastic cloth is prone to being damaged by wind and sand is changed, the ignition equipment can be effectively shielded, and the wind and sand are prevented from invading the ignition equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition device shielding, in particular to an explosion-proof ignition device. Background Technique

[0002] During the oil drilling process, when the drilling tool drills to a high-pressure oil and gas layer, it is very likely that the liquid column pressure of the drilling fluid is lower than the pressure of the oil and gas layer. Then, the high-pressure oil and gas flow will invade the wellbore, rise along the wellbore, and escape from the wellhead, so as to eject the drilling fluid and form an overflow or a kick, and at the same time, the gas is output from the wellhead.

[0003] In order to be able to contain the situation of drilling fluid overflow or kick, it is necessary for the drilling workers to close the blowout preventer and take corresponding effective measures such as throttling and blowout. When taking the above measures, the natural gas discharged by the blowout will disperse in the air. When the natural gas is mixed with the air to a certain proportion, it is extremely easy to explode, and the gas containing H 2 S poses a threat to the lives of the staff and pollutes the environment. Therefore, it is necessary to install an ignition device at the end of the oil-gas two-phase separator. The natural gas separated by the oil-gas two-phase separator will flow along the pipeline to the ignition device. Under the action of the ignition device, the combustion of natural gas is realized, and thus the occurrence of natural gas explosion and other situations can be effectively prevented.

[0004] At present, there are some ignition devices on the market. For example, the ignition device disclosed in a Chinese patent with the patent publication number CN109751617A includes: an ignition component, a combustible substance monitoring component, and a control component. The control component is respectively in signal connection with the ignition component and the combustible substance monitoring component; the ignition component includes an ignition end, and the ignition end is arranged at the blowout port of the blowout component; the combustible substance monitoring component includes a monitoring end, and the monitoring end is arranged in the blowout pipeline of the blowout component, etc. There is also an ignition device as shown in the appendix Figure 7 shown ignition device.

[0005] Regardless of the type of ignition device, it can ignite natural gas and prevent accidents of natural gas explosion. However, as described in the first paragraph, natural gas will only be output with the drilling fluid when the drilling tool descends to the high-pressure oil and gas layer. When the drilling tool has not reached or has passed the high-pressure oil and gas layer, the ignition device does not need to work to ignite natural gas, and the top opening of the ignition device allows foreign objects to enter. At the same time, the environment of oil extraction is generally relatively harsh, with strong winds and sandstorms. When the ignition device is installed at the extraction site and is in the stage of being out of use, workers need to climb high and use covering devices such as plastic sheets to cover the ignition device to prevent foreign objects such as wind and sand from entering the ignition device. When workers install the covering device on the ignition device, they need to rely on climbing tools, that is, they need to spend time looking for and moving climbing tools. In addition, covering devices such as plastic sheets cannot be guaranteed to be intact in bad weather, affecting the covering effect of the ignition device. If the unused ignition device is disassembled to prevent wind and sand from raging, it needs to be reinstalled when the drilling tool descends to the high-pressure oil and gas layer, and the operation is relatively cumbersome. Summary of the Invention

[0006] The purpose of the present invention is to provide an explosion-proof ignition device, aiming to improve the problem that covering devices such as plastic sheets are inconvenient to install on the ignition device and are extremely easy to be blown broken or blown off by the wind, affecting the covering effect of the ignition device.

[0007] The present invention is implemented as follows: An explosion-proof ignition device includes an ignition body, a covering plate is arranged at the upper end of the ignition body, and a support frame and a lifting rod are arranged on the side. The covering plate covers the top of the ignition body and is arranged on the top of the support frame. The support frame is adjustably arranged on the ignition body and is connected to the lifting rod at the lower end. The support frame can control the covering plate to rotate, and the lifting rod is also adjustably arranged on the ignition body and can control the support frame and the covering plate to rise.

[0008] Preferably, the lifting rod includes a bent main rod and a connecting pipe. The bent main rod is arranged in an L-shaped structure, and the connecting pipe is fixedly arranged on the top of the bent main rod.

[0009] Preferably, a sleeve is sleeved on the bent main rod. A hoop is fixedly arranged on the side of the sleeve, and the hoop is sleeved on the ignition body. A holding rod is arranged at the lower end of the bent main rod.

[0010] Preferably, the support frame includes a top rod, a bottom rod and a support pipe. The bottom rod is vertically arranged below the top rod, and a runner is arranged at the bottom. The top rod penetrates through the support pipe and a connecting plate is arranged at the top.

[0011] Preferably, the ignition body includes a gas transmission pipe and an anti-backfire device. A combustion cylinder is arranged at the top of the gas transmission pipe, and an ignition electrode is arranged in the combustion cylinder. The ignition electrode is arranged near the gas transmission end of the gas transmission pipe. The anti-backfire device is arranged at the bottom of the gas transmission pipe and is connected to the oil-gas two-phase separator.

[0012] Preferably, the support tube is fixedly arranged on the outside of the combustion tube, and the upper end is flush with the upper side surface of the combustion tube, the connecting plate is arranged on the upper side surface of the covering plate, and the covering plate is arranged to fit the upper end of the combustion tube.

[0013] Preferably, the bottom rod passes through the connecting tube and has a length greater than the height of the combustion tube. Meanwhile, the length of the bent main rod is also greater than the height of the combustion tube.

[0014] Preferably, a connecting rod is provided in the middle portion below the covering plate, a blocking column is provided at the bottom of the connecting rod, the bottom of the blocking column is provided as a conical structure, and the top diameter is larger than the inner diameter of the gas pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model is provided with a covering plate, a supporting frame and an adjusting rod. When the ignition device is not working, the staff can lift the adjusting rod to control the supporting frame and the covering plate to rise, and make the lower end of the blocking column higher than the top surface of the combustion tube. At this time, the staff can operate the supporting frame to rotate so that the covering plate 2 and the blocking column are located above the combustion tube, and then the covering plate and the blocking column can be respectively covered on the combustion tube and the gas pipe, which changes the current situation that the ignition device is wrapped with plastic cloth or the like by manual means of climbing tools and the plastic cloth is easily damaged by wind and sand, and can effectively shield the ignition device and prevent wind and sand from invading the ignition device.

[0017] 2. The utility model sets the bottom rod through the adjustment rod, which provides convenience for the staff to lift the support frame and then rotate the support frame, so as to avoid the inconvenience of the staff adjusting the direction of the cover plate due to the lifting of the support frame, which affects the shielding of the ignition equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0019] Figure 2 It is a three-dimensional structural diagram of the ignition pump body of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the cover plate, the support frame and the adjustment rod of the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the cover plate of the utility model;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the support frame of the utility model;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the adjusting rod of the utility model;

[0024] Figure 7It is a three-dimensional schematic diagram of the existing ignition device.

[0025] In the figure: 1. Ignition body; 11. Gas transmission pipe; 12. Combustion cylinder; 13. Ignition plug; 14. Flowmeter; 15. Flameback prevention device; 2. Cover plate; 21. Link; 22. Blocking column; 3. Support frame; 31. Push rod; 32. Supporting pipe; 33. Connecting plate; 34. Bottom rod; 35. Rotating wheel; 4. Adjusting rod; 41. Bent main rod; 42. Holding rod; 43. Connecting pipe; 44. Sleeve. Detailed implementation mode

[0026] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] The following will be further described in conjunction with the accompanying drawings and specific embodiments:

[0028] Embodiment 1

[0029] Such as Figure 1 、 Figure 2As shown in the figure, an explosion-proof ignition device includes a gas transmission pipe 11, a combustion cylinder 12, an ignition electrode 13 and an anti-backfire device 15. The bottom of the gas transmission pipe 11 is provided with a bending structure. A combustion cylinder 12 is arranged at the top of the gas transmission pipe 11, and an ignition electrode 13 is arranged in the combustion cylinder 12. The ignition electrode 13 is arranged adjacent to the gas supply end of the gas transmission pipe 11 and is connected to a high-voltage generator through a high-voltage cable. The high-voltage generator converts the industrial frequency alternating current of AC220V into high-frequency pulsed direct current, and the high-frequency pulsed direct current is transmitted to the ignition electrode 13, enabling the ignition electrode 13 to continuously eject an electronic flame with a temperature exceeding 1200°C and a length exceeding 120mm. The anti-backfire device 15 is arranged at the bottom of the gas transmission pipe 11 and is connected to an oil-gas two-phase separator. After the drilling fluid enters the oil-gas two-phase separator, it will be separated into two-phase substances of gas and liquid. The gas substance is the natural gas released from the high-pressure oil and gas layer. The natural gas flows along the pipeline into the anti-backfire device 15 and the gas transmission pipe 11. The natural gas output from the top of the gas transmission pipe 11 burns under the action of the ignition electrode 13, thereby avoiding the explosion caused by air mixing, as well as avoiding environmental pollution and personal injury. Of course, in order to control the operation of the ignition electrode 13, a control cabinet also needs to be set up so that the staff can operate the control cabinet to provide voltage for the operation of the ignition electrode 13. For the convenience of the following description, the part composed of the gas transmission pipe 11, the combustion cylinder 12, the ignition electrode 13 and the anti-backfire device 15 is called the ignition body 1.

[0030] As described in the background art, only when the drilling tool encounters a high-pressure oil and gas layer, does the ignition body 1 need to work to burn the natural gas. When the drilling tool deviates from the high-pressure oil and gas layer, the ignition body 1 stops working, and it is necessary to cover the top of the ignition body 1 with devices such as plastic sheets to prevent sand and dust from entering the ignition body 1. However, the ignition body 1 is relatively high, which is not conducive to the staff installing devices such as plastic sheets on the ignition body 1, and at the same time, the plastic sheets are easily torn by the harsh sand and dust.

[0031] Such as Figure 1 、 Figure 3 、 Figure 4As shown in the figure, to solve the above problems, in this embodiment, a cover plate 2, a support frame 3 and a transfer rod 4 are arranged on the side of the ignition body 1. The transfer rod 4 and the support frame 3 are both adjustable and arranged on the side of the ignition body 1. The support frame 3 is arranged above the transfer rod 4. At the same time, the support frame 3 can rotate relative to the transfer rod 4. In addition, the cover plate 2 is arranged on the top of the support frame 3. A connecting rod 21 is arranged in the middle below the cover plate 2. A plug column 22 is arranged at the bottom of the connecting rod 21. The bottom of the plug column 22 is set as a conical structure, and the diameter of the top is larger than the inner diameter of the gas transmission pipe 11. Therefore, the cover plate 2 shields the top of the combustion cylinder 12 and the top of the plug column 22 is inserted into the top of the gas transmission pipe 11. According to actual needs, a sealing layer can also be arranged on the outside of the plug column 22. Specifically, when the ignition body 1 stops working, the staff can lift the transfer rod 4 upward, and at the same time drive the support frame 3 upward, so that the bottom of the plug column 22 is higher than the top surface of the combustion cylinder 12. At this time, the staff holds the bottom of the support frame 3 and controls the support frame 3 to rotate, and at the same time drives the cover plate 2 and the plug column 22 to rotate. When the cover plate 2 and the plug column 22 are above the combustion cylinder 12 and the gas transmission pipe 11, the staff controls the support frame 3 to slowly descend until the cover plate 2 and the plug column 22 respectively cover the combustion cylinder 12 and the gas transmission pipe 11. Then, under the action of the gravity of the support frame 3, the transfer rod 4, the cover plate 2 and the plug column 22, the cover plate 2 can be stably arranged above the combustion cylinder 12. When it is necessary to inflate the ignition body 1, reverse the above operations, and the combustion cylinder 12 and the gas transmission pipe 11 can be made unobstructed, which provides convenience for igniting natural gas.

[0032] As Figure 5 shown, to achieve the stable installation of the support frame 3, the support frame 3 includes a top rod 31, a bottom rod 34 and a support pipe 32. The support pipe 32 is fixedly arranged on the outside of the combustion cylinder 12. The upper end of the support pipe 32 can be flush with the upper side surface of the combustion cylinder 12 or lower than the upper side surface of the combustion cylinder 12. The top rod 31 passes through the support pipe 32, and a connecting plate 33 is arranged at the top. The connecting plate 33 is fixedly arranged on the upper side surface of the cover plate 2. The bottom rod 34 is vertically arranged below the top rod 31, and the diameter is smaller than that of the top rod 31. A runner 35 is arranged at the bottom. In addition, a sleeve 44 can also be sleeved on the top rod 31. A hoop is fixedly arranged on the side of the sleeve 44, and the hoop is sleeved on the gas transmission pipe 11 to enhance the stability of the support frame 3. When the upper end of the support pipe 32 is flush with the upper side surface of the combustion cylinder 12, the cover plate 2 deviating from the combustion cylinder 12 is still higher than the combustion cylinder 12, shortening the height for the staff to lift the cover plate 2. When the upper end of the support pipe 32 is lower than the upper side surface of the combustion cylinder 12, the cover plate 2 is lower than the upper end of the combustion cylinder 12. At this time, under the block of the combustion cylinder 12, the cover plate 2 is stably placed. In addition, under the cooperation of the support pipe 32 and the sleeve 44, the top rod 31 and the bottom rod 34 can be stably lifted and lowered.

[0033] As Figure 6As shown in the figure, in order to stably install the adjustment rod 4 and control the lifting of the support frame 3, the adjustment rod 4 includes a bent main rod 41 and a connecting pipe 43. The bent main rod 41 is arranged in an L-shaped structure. The connecting pipe 43 is fixedly arranged at the top of the bent main rod 41. A holding rod 42 is arranged at the lower end of the bent main rod 41. At the same time, a sleeve 44 is sleeved on the bent main rod 41. A hoop is fixedly arranged on the side of the sleeve 44, and the hoop is sleeved on the gas transmission pipe 11. In addition, the bottom rod 34 passes through the connecting pipe 43 and its length is greater than the height of the combustion cylinder 12. At the same time, the length of the bent main rod 41 is also greater than the height of the combustion cylinder 12. Since the diameter of the bottom rod 34 is smaller than that of the top rod 31, the top of the connecting pipe 43 contacts the bottom of the top rod 31. Therefore, when the staff pulls the holding rod 42 upward, the top rod 31 can be forced to rise. When the bottom of the blocking column 22 is higher than the top surface of the combustion cylinder 12, the staff can hold the bottom rod 34 to control the top rod 31 to drive the covering plate 2 to rotate.

[0034] Embodiment 2

[0035] As Figure 1 shown, on the basis of Embodiment 1, a flowmeter 14 can also be arranged at the bottom of the gas transmission pipe 11. The flowmeter 14 can detect in real time whether there is still natural gas in the gas transmission pipe 11, so as to facilitate reminding the staff whether to control the ignition body 1 to work.

[0036] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An explosion-proof ignition device, characterized in that: The invention comprises an ignition body (1), a cover plate (2) is arranged at the upper end of the ignition body (1), and a support frame (3) and an adjustment rod (4) are arranged on the side, the cover plate (2) covers the top of the ignition body (1) and is arranged at the upper end of the support frame (3), the support frame (3) is adjustably arranged on the ignition body (1), and the lower end is connected to the adjustment rod (4), the adjustment rod (4) is also adjustably arranged on the ignition body (1), and can control the support frame (3) and the cover plate (2) to rise, and the support frame (3) can control the cover plate (2) to rotate.

2. An explosion-proof ignition device according to claim 1, characterized in that: The adjustment rod (4) comprises a bent main rod (41) and a connecting tube (43); the bent main rod (41) is arranged in an L-shaped structure; and the connecting tube (43) is fixedly arranged on the top of the bent main rod (41).

3. An explosion-proof ignition device according to claim 2, characterized in that: A sleeve (44) is sleeved on the bent main rod (41), a clamp is fixedly provided on the side of the sleeve (44), the clamp is sleeved on the ignition body (1), and a holding rod (42) is provided at the lower end of the bent main rod (41).

4. An explosion-proof ignition device according to claim 3, characterized in that: The support frame (3) comprises a top rod (31), a bottom rod (34) and a support tube (32); the bottom rod (34) is vertically arranged below the top rod (31) and a rotating wheel (35) is arranged at the bottom; the top rod (31) passes through the support tube (32) and a connecting plate (33) is arranged at the top.

5. An explosion-proof ignition device according to claim 4, characterized in that: The ignition body (1) comprises a gas delivery pipe (11) and a backfire prevention device (15); a combustion tube (12) is arranged at the top of the gas delivery pipe (11), and an ignition nozzle (13) is arranged inside the combustion tube (12); the ignition nozzle (13) is arranged near the gas delivery end of the gas delivery pipe (11); the backfire prevention device (15) is arranged at the bottom of the gas delivery pipe (11) and is connected to an oil-gas two-phase separator.

6. An explosion-proof ignition device according to claim 5, characterized in that: The supporting tube (32) is fixedly arranged on the outside of the combustion tube (12), the connecting plate (33) is arranged on the upper side of the covering plate (2), and the covering plate (2) can be arranged in contact with the upper end of the combustion tube (12).

7. An explosion-proof ignition device according to claim 5, characterized in that: The bottom rod (34) is arranged to penetrate the connecting tube (43) and has a length greater than the height of the combustion tube (12). Meanwhile, the length of the bent main rod (41) is also greater than the height of the combustion tube (12).

8. An explosion-proof ignition device according to claim 5, characterized in that: A connecting rod (21) is arranged in the middle below the cover plate (2), a blocking column (22) is arranged at the bottom of the connecting rod (21), the bottom of the blocking column (22) is arranged in a conical structure, and the top diameter is larger than the inner diameter of the gas transmission pipe (11).

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