CN220083085U - Internal flame transfer ignition device - Google Patents

Abstract

The utility model relates to the technical field of ignition equipment, and provides an internal flame transfer ignition device, which comprises an igniter controller, an igniter, a pilot burner, a combustible gas inlet, a combustible gas control valve group and a mixer, wherein the combustible gas inlet, the combustible gas control valve group and the mixer are sequentially connected; the utility model is used for solving the problem that ignition electrodes and high-voltage cables are easy to burn.

Description

Internal flame transfer ignition device

Technical Field

The utility model relates to the technical field of ignition equipment, in particular to an internal flame transfer ignition device.

Background

The emptying torch system is mainly applied to industries such as petroleum, natural gas, chemical industry, metallurgy and the like, has the main functions of burning tail gas generated in the production process and combustible gas discharged in an accident state, is auxiliary production equipment used for guaranteeing safe production of process devices in a natural gas gathering and transportation process, and is also one of important facilities for HSE management.

Meanwhile, in the process of separating and discharging oil and natural gas drilling engineering well control or discharging, the discharged gas contains a large amount of harmful gas, and the harmful gas needs to be ignited for harmless treatment, so that an ignition device is used, and a discharging ignition device and a separator ignition device are usually used.

At present, the ignition of an emptying torch system and the ignition of a drilling blowout or a separator are both performed in a high-voltage discharge mode, and the exhaust gas is directly ignited by high-voltage ignition or the pilot burner is firstly ignited by high-voltage ignition, and the flame sprayed by the pilot burner ignites the exhaust gas. At present, in the two ignition modes, an ignition electrode and an ignition high-voltage cable are close to a torch outlet, if discharged gas is increased, the flame temperature of combustion of the discharged gas is high, and the ignition electrode and the high-voltage cable are easily burnt out, so that the defect of failure in ignition is caused.

Meanwhile, the internal flame transfer ignition device used in the current market needs to be simultaneously provided with fuel gas and compressed air to be connected with the internal flame transfer ignition device so as to realize the internal flame transfer ignition, and the working condition environment without the compressed air can not be met, and the internal flame transfer ignition can also be used.

Disclosure of Invention

The utility model aims to provide an internal flame transfer ignition device which is used for solving the problem that an ignition electrode and a high-voltage cable are easy to burn out; meanwhile, the problem that the internal flame transfer ignition can be reliably realized under the working condition that compressed air is not configured is solved.

The embodiment of the utility model is realized by the following technical scheme: the internal flame transfer ignition device comprises an igniter controller, an igniter, a pilot burner, a combustible gas inlet, a combustible gas control valve group and a mixer which are sequentially connected, wherein the igniter controller is used for controlling the combustible gas control valve group, the igniter controller is connected with the igniter, the igniter is used for igniting in the mixer, the mixer transmits flame to the pilot burner through a flame transfer pipe, and the pilot burner is connected with the combustible gas control valve; the mixer mixes the combustible gas and air at certain pressure and flow parameters for ignition.

Further, the mixer includes: the jet type distributor ejector and the ignition chamber are sequentially communicated; the input end of the jet flow type distributor is connected with the output end of the flammable gas control valve group; the output end of the jet flow distributor is connected with the input end of the ignition chamber; the ignition chamber of the combustion chamber is ignited by the igniter.

Further, a mixing chamber is further arranged, the input end of the mixing chamber is connected with the output end of the jet distributor, the output end of the mixing chamber is connected with the input end of the ignition chamber, a plurality of spoilers are arranged in the mixing chamber, and through holes are formed in the spoilers.

Further, an accelerating hole is further formed, the accelerating hole is communicated with the mixing chamber and the combustion chamber ignition chamber, and the inlet radius of the accelerating hole is larger than the outlet radius of the accelerating hole.

Further, the furthest distance of the spoiler, which is far away from the inner wall of the mixing chamber, is positioned between the inlet and the outlet of the accelerating hole when projected along the axial direction of the mixing chamber.

Further, a flame monitoring device for monitoring the combustion state of the pilot burner is also provided and is connected with the igniter controller.

Further, the mixer includes: the device comprises a mixer gas inlet pipe, a multifunctional air distributor, a wind regulating disc, an ejector, a nozzle, a primary mixing section, a primary diffusion section, a secondary mixing section, a secondary diffusion section, an ignition chamber, a discharge head, a discharge and flame monitor; one end of a gas inlet pipe of the mixer is connected with the output end of the flammable gas control valve group; the other end is connected with a nozzle; the ejector, the primary mixing section, the primary diffusion section, the secondary mixing section, the secondary diffusion section and the ignition chamber are sequentially communicated; the ejector is of a tubular structure with a large inlet and a small outlet; the air adjusting disc is arranged close to the inlet of the ejector and used for adjusting the air inflow of the inlet of the ejector; the nozzle is of a tubular structure with a large inlet and a small outlet and is arranged in the ejector; the primary mixing section is an equal-diameter straight pipe, and the diameter of the primary mixing section is consistent with the diameter of an outlet of the ejector; the inlet of the primary diffusion section is small, the outlet of the primary diffusion section is large in a tubular structure, and the diameter of the inlet of the primary diffusion section is consistent with that of the primary mixing section; the secondary mixing section is an equal-diameter straight pipe, and the diameter of the secondary mixing section is consistent with that of the primary diffusion section; the inlet of the stage diffusion section is small, the outlet of the stage diffusion section is large in a tubular structure, and the diameter of the inlet of the stage diffusion section is consistent with the diameter of the secondary mixing section; the diameter of the ignition chamber is consistent with the diameter of the outlet of the secondary diffusion section; the ignition chamber is provided with a discharge head and a discharge and flame monitor; the discharge head is used for igniting the mixed gas; the discharge and flame monitor is in communication connection with the igniter controller; one end of the multifunctional air distributor is fully wrapped with an air inlet of the ejector, an air adjusting disc and a gas inlet pipe of the mixer; the other end is communicated with the outside air.

Further, a flame arrester is arranged in the multifunctional air dispenser.

Further, the discharge interval of the igniter includes 0.5s to 2s and 20s to 40s.

The utility model has at least the following advantages and beneficial effects: the defect that ignition failure is caused by the fact that ignition electrodes and high-voltage cables are easily burnt out due to the fact that the flame temperature of combustion of the discharged gas is high due to the fact that the discharged gas is increased is overcome; meanwhile, the problem that the internal flame transfer ignition can be reliably realized under the working condition that compressed air is not configured is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an inner flame transfer ignition device according to a first embodiment;

fig. 2 is a schematic structural diagram of a mixer in an inner flame transfer ignition device according to a first embodiment;

fig. 3 is a schematic structural diagram of a mixer in an inner flame transfer ignition device according to a second embodiment;

fig. 4 is a schematic structural diagram of a multifunctional air dispenser in an inner flame transfer ignition device according to a second embodiment;

fig. 5 is a schematic diagram of a first ignition principle of an inner flame transfer ignition device according to a second embodiment;

fig. 6 is a schematic diagram of a second ignition principle of an inner flame transfer ignition device according to the second embodiment;

icon: the device comprises a 1-combustible gas inlet, a 2-combustible gas control valve group, a 3-igniter controller, a 4-flame monitoring device, a 5-igniter, a 6-mixer, a 7-pilot burner, an 8-flame transfer tube, a 71-discharge head, a 72-discharge head monitoring sensor, a 81-primary jet distributor, a 82-secondary jet distributor, a 83-mixing chamber, a 84-ignition chamber, a 85-spoiler, a 86-through hole, a 87-accelerating hole, a 61-mixer gas inlet pipe, a 62-multifunctional air distributor, a 63-air regulating disc, a 64-ejector, a 65-nozzle, a 66-primary mixing section, a 67-primary diffusion section, a 68-secondary mixing section, a 69-secondary diffusion section, a 610-ignition chamber, a 611-discharge head, a 612-discharge flame monitor, a 621-air inlet pipe, a 622-elbow, a 623-flame arrestor, a 624-elbow, a 625-air outlet pipe, a 626-air chamber, a 627-regulating disc hole bolt.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1, in this embodiment, an internal flame transfer ignition device is mainly disclosed, which solves the defect that in the traditional emptying torch system, because the discharged gas is increased, the flame temperature of the combustion of the discharged gas is very high, and the ignition electrode and the high-voltage cable are easily burnt out, so that the ignition failure is caused.

The main structure comprises: the igniter controller 3, the igniter 5 and the pilot burner 7 are sequentially connected with the combustible gas inlet 1, the combustible gas control valve group 2 and the mixer 6.

Wherein, the igniter controller 3 controls the flammable gas control valve group 2 through a wired or other existing communication mode, and can adopt PLC control; the combustible gas control valve group 2 consists of a pressure regulator, a pressure transmitter, an electromagnetic valve, a filter and the like, which are all in the prior art, and aim to control the start and stop and the pressure of the fuel gas.

The igniter controller 3 is connected with an igniter 5, the igniter 5 is used for igniting in the mixer 6, and the igniter 5 is an existing high-pressure ignition device and is used for igniting mixed gas.

The mixer 6 transmits the flame through the flame transfer tube 8 to the pilot burner 7, and the pilot burner 7 is used for igniting the emptying torch system; of course, the pilot burner 7 is connected with a flammable gas control valve and is controlled to be in on-off state by the igniter controller 3; the pilot burner 7 is a compound burner and has visual and wind-resistant structural design.

It should be emphasized that in this embodiment, the mixer 6 mixes the combustible gas and air under a certain pressure and flow parameters for ignition, and in general, in the prior art, the combustion-supporting gas is mainly supplied by the instrument wind, the pressure and flow of the combustible gas and air need to be adjusted for each ignition, after the pressure and flow parameters are adjusted, if the pressure and flow and small changes occur in the next ignition, the flow and pressure of the fuel gas and air are readjusted, so that the successful ignition of the inner flame passing can be achieved. And after the pressure and the flow are set once, the parameter reusability of the next ignition is poor. Meanwhile, at present, a plurality of emptying flare sites are not provided with instrument wind 63, so that the air pressure cannot be adjusted, and further the internal flame transfer ignition cannot be realized.

In the present embodiment, therefore, ignition can be achieved by providing only one combustible gas inlet 1; the defect of poor reusability of gas pressure and flow parameters is avoided; without using the meter wind 63.

Specifically, the mixer 6 is composed of a jet distributor and an ignition chamber 84, specifically, the jet distributor may be divided into a multi-stage arrangement and in a binary tree structure, as shown in fig. 2, two stages are provided in this embodiment, and are distributed into a primary jet distributor 81 and a secondary jet distributor 82; specifically, the mixer is composed of a primary jet distributor 81, three secondary jet distributors 82, a mixing chamber 83 and an ignition chamber 84, and the jet distributor adopts the prior art scheme and is a venturi tube structure, such as: jet dispensers from Yongjie engineering devices Inc. of Anchu, inc. The high flow velocity of the combustible gas drives air to enter, so that quantitative mixing of the combustible gas and the air is realized, and adjustment of pressure and flow is avoided.

The input end of the primary jet distributor 81 is connected with the output end of the flammable gas control valve group 2; the three secondary jet flow type distributors 82 are connected in parallel, and the input end of the three secondary jet flow type distributors 82 is connected with the output end of the primary jet flow type distributor 81; the output end of the secondary jet distributor 82 is connected with the input end of the mixing chamber 83; the mixing chamber 83 serves to further mix the combustible gas and air while delivering the mixed gas into the ignition chamber 84; the ignition chamber 84 is controlled to ignite by the igniter 5.

Further, a plurality of spoilers 85 are provided in the mixing chamber 83 to enhance mixing of the combustible gas and air, and in addition, the spoilers 85 are provided toward the ignition chamber 84 to avoid blocking the flow rate; the spoiler 85 is provided with a through hole 86.

In order to ensure the combustion effect, in the present embodiment, an accelerating hole 87 is further provided, the accelerating hole 87 communicates the mixing chamber 83 and the ignition chamber 84, and the inlet radius of the accelerating hole 87 is larger than the outlet radius of the accelerating hole 87; projecting along the axis direction of the mixing chamber 83, wherein the farthest distance of the spoiler 85, which is far away from the inner wall of the mixing chamber 83, is positioned between an inlet and an outlet of an accelerating hole 87, the accelerating hole 87 conveys the mixed gas passing through the spoiler 85 into an ignition chamber 84 for ignition, specifically, the ignition mode is that the mixed gas is ignited by a high pressure of a discharge head 71, and meanwhile, a discharge head monitoring sensor 72 is arranged in the ignition chamber 84 for detecting signals; such as: the igniter 5 has a plurality of high voltage outputs, and a switching circuit for the high voltage outputs, and when the igniter 5 switches the high voltage outputs by the presence or absence of a discharge signal fed back from the discharge head monitoring sensor 72 on the mixer 6.

Further, a flame monitoring device 4 for monitoring the combustion state of the pilot burner 7 is also provided, which is connected to the igniter controller 3.

It is also emphasized that in this embodiment: the working process of the mixer 6 is as follows:

the air primary jet distributor 81 allows the combustible gas to move at a high speed to suck the ambient air into the primary jet distributor 81 for primary mixing with the combustible gas, the air secondary jet distributor 82 can suck the ambient air at a secondary speed to be mixed with the primary mixed gas for secondary mixing into the mixing chamber 83, and it should be emphasized that in some embodiments, a three-stage ejector can be further arranged to further increase the air inlet; the mixing chamber 83 further mixes the gas by the spoiler 85, and delivers the gas to the ignition chamber 84 for ignition; the discharge head 71 is connected with the multi-path high-voltage output of the igniter 5 through a high-voltage wire, and is further provided with a discharge head monitoring sensor 72, which monitors whether the discharge head 71 discharges at any time and feeds back a signal of whether the discharge is performed to the igniter 5.

The ignition of the inner flame transfer is realized: after receiving the starting ignition signal, the igniter controller 3 opens the electromagnetic valve on the flammable gas control valve group 2, the air primary jet type distributor 81 enters flammable gas, the high-speed motion of the gas sucks the ambient air into the primary jet type distributor 81 to be mixed with the primary gas, the secondary air secondary jet type distributor 82 sucks the ambient air to be mixed with the primary mixed gas to be mixed with the secondary gas to be mixed with the mixing chamber 83, and the mixing chamber 83 is internally provided with a spoiler 85 and an accelerating hole 87; the mixing chamber 83 is connected with the ignition chamber 84, and the discharge head 71 is connected with multiple high-voltage outputs of the igniter 5 through high-voltage wires; simultaneously, the combustible gas enters the pilot burner 7; simultaneously, the igniter controller 3 sends an ignition command to the igniter 5, the igniter 5 outputs a discharge head 71 on an ignition chamber 84, the discharge head 71 discharges at high pressure, electric sparks encounter mixed gas in the ignition chamber 84 to burn, flames reach a distant igniting burner 7 from the ignition chamber 84 through a flame transfer tube 8, the flame transfer tube 8 reaches the igniting burner 7 to contact with combustible gas sprayed by the igniting burner 7, and the igniting burner 7 burns normally; the flame from the pilot burner 7 ignites the discharged gas from the flare or drill, and when the flame monitoring device 4 detects that the discharged gas is normally burned, the ignition is stopped. If the exhaust gas is accidentally extinguished, the inner flame transfer ignition device repeats the auto-ignition, knowing that the exhaust gas is ignited.

The inner flame transfer ignition device has the advantages that:

1. the inner flame transfer discharge head 71 (or electrode) and the high-voltage line are far away from the outlet of the emptying torch (or drilling discharge) by a distance not smaller than 20 meters, and the discharge head 71 (or electrode) and the high-voltage line are far away from the high-temperature area, so that the service life of the whole ignition device can be prolonged to form a geometric index, and the success rate of ignition is ensured.

2. The special structure of the mixer 6 ensures that after the pressure and flow parameters are once set, the pressure and flow parameters are not required to be regulated any more, and the internal flame transfer ignition can be repeatedly used all the time.

3. The gas discharge working condition of compressed air or instrument wind 63 configuration is not adopted, and convenient and reliable inner flame transfer ignition can be realized.

4. The multistage ejector and the spoiler 85 arranged on the mixer 6 ensure the full mixing of the fuel gas and the air, and ensure the stability of flame transmission of the flame transmitting tube 8, thus ensuring the success rate of ignition.

5. The mixer 6 is provided with the plurality of discharge heads 71 and the discharge head monitoring sensor 72, so that after the quality life cycle of the discharge heads 71 comes, the discharge heads can be automatically switched to discharge ignition after another discharge, and the automatic unmanned switching is realized, so that the service life of the ignition device is greatly prolonged, and the ignition success rate is ensured.

Example two

In this embodiment, the main structure is identical to that of the first embodiment, and the difference is that, as shown in fig. 3, the mixer is different, and it should be emphasized that the working principle of the mixer in this embodiment is also substantially the same as that of the jet distribution pipe; in the embodiment, only one flammable gas inlet 1 is arranged, and the ignition of the inner flame transfer can be realized without configuring special compressed air; the defect that the internal flame transfer ignition device configured with fuel gas and compressed air is poor in reusability due to fluctuation of gas pressure and flow parameters is avoided.

Specifically, the mixer 6 is composed of: the gas-fired air mixing device comprises a gas inlet pipe 61 of a mixer, a multifunctional air distributor 62, a wind regulating disc 63, an ejector 64, a nozzle 65, a primary mixing section 66, a primary diffusion section 67, a secondary mixing section 68, a secondary diffusion section 69, an ignition chamber 610, a discharge head 611 and a discharge and flame monitor 612. The ejector 64 adopts the prior art scheme, such as: a venturi eductor; in this embodiment, the ejector 64 has a tubular structure with a large inlet and a small outlet, and forms negative pressure to drive air into the air through the high flow rate of the combustible gas, so that quantitative mixing of the combustible gas and the air is realized, and adjustment of pressure and flow is avoided.

One end of a gas inlet pipe 61 of the mixer is connected with the output end of the flammable gas control valve group 2; the other end is connected with the nozzle; the ejector 64, the primary mixing section 66, the primary diffusion section 67, the secondary mixing section 68, the secondary diffusion section 69 and the ignition chamber 610 are sequentially communicated.

The ejector 64 has a tubular structure with a large inlet and a small outlet; the air adjusting disc 63 is arranged close to the inlet of the ejector and is used for adjusting the air inflow of the inlet of the ejector 64; the nozzle 65 is a tubular structure with a large inlet and a small outlet and is arranged in the ejector 64; the primary mixing section 66 is a straight pipe of equal diameter and of the same diameter as the outlet of the ejector 64; the primary diffusion section 67 has a tubular structure with a small inlet and a large outlet, and the inlet of the primary diffusion section is consistent with the diameter of the primary mixing section 66; the secondary mixing section 68 is an equal-diameter straight pipe, and the diameter of the secondary mixing section is consistent with that of the primary diffusion section (67); the secondary diffuser section 69 has a tubular structure with a small inlet and a large outlet, and the inlet diameter of the secondary diffuser section is consistent with the diameter of the secondary mixing section 68; the diameter of the firing chamber 610 coincides with the outlet diameter of the secondary diffuser section 68; the ignition chamber 610 is equipped with a discharge head 611 and a discharge and flame monitor 612; the discharge head 611 is used for igniting the mixed gas; the discharge and flame monitor 612 is communicatively coupled to the igniter controller 3; one end of the multifunctional air distributor 62 is fully wrapped with an air inlet of the ejector 64, the air adjusting disc 63 and the mixer gas inlet pipe 61; the other end is communicated with the outside air. Specifically, the mixer gas inlet pipe 61 is connected with the output end of the flammable gas control valve group 2; the air adjusting disc 63 adjusts the air inlet size of the ejector 64, so that the mixing ratio of the fuel gas and the air is realized; it should be emphasized that in this embodiment, the structure of the air adjusting disc is not limited, so long as the size of the air inlet is adjusted, for example, a butterfly valve mode or a movable baffle mode may be adopted.

The ejector 64 has large inlet diameter and small outlet diameter, and the necking structure ensures the flow velocity of the ejected air; the nozzle 65 has a large inlet and a small outlet, so that the speed of the fuel gas is increased, and negative pressure is formed at the outlet after the fuel gas enters the ejector, so that the reliable injection of air is ensured; the primary mixing section 66 is an equal-diameter straight pipe, so that primary mixing of fuel gas and air is ensured; the first-stage diffusion section 67 has a small inlet and a large outlet, so that the mixed gas is diffused and decompressed, and the mixed gas is guaranteed to be mixed again; the secondary mixing section 68 is also an equal-diameter straight pipe, the diameter of which is larger than that of the primary mixing section 66, and the mixed gas is fully mixed again; the secondary diffusion section 69 has a small inlet and a large outlet, so that secondary diffusion pressure reduction of the mixed gas is realized, and remixing of the mixed gas is ensured; the ignition chamber 610 is provided with a discharge head 611 and a discharge and flame monitor 612 to realize ignition combustion of the mixed gas; the discharge head 611 generates an electric spark or arc to ignite the mixed gas; the discharge and flame monitor 612 monitors whether the discharge head discharges and the mixed gas is ignited, and feeds back a signal to the igniter controller 3;

further, as shown in fig. 4, the multi-function air dispenser 62 is formed of: an air inlet pipe 621, an elbow 622, a flame arrester 623, an elbow 624, an air outlet pipe 625, an air chamber 626 and a regulating hole bolt 627 of a regulating fan; the air inlet pipe 621 is connected with the ambient atmosphere and enters air; the air inlet pipe 621 is connected with the ambient atmosphere and enters air; the air inlet pipe 621 faces the ground vertically, so that rainwater is prevented from entering the mixer; the inlet of the flame arrester 623 is connected to the air inlet pipe 621 through an elbow 622, and the outlet is connected to the air outlet pipe 625 through an elbow; the flame arrestor 623 prevents the flame from coming out of the air inlet pipe 621 to cause potential safety hazard when the inner flame is ignited; an air outlet duct 625 is connected at an outlet to an air chamber 626; the air adjusting disc adjusting hole bolts 627 are arranged on the air chamber 626, when the air inflow is to be adjusted, the air adjusting disc adjusting hole bolts 627 can be taken down, and the distance between the air adjusting disc and the ejector is adjusted through the bolt holes by using a special tool, so that the air inflow is realized. The ignition chamber 610 is controlled to ignite by the igniter 5.

Further, a flame monitoring device 4 for igniting the combustion state of the burner 7 is connected to the igniter 5 controller 3. The flame monitoring device 4 transmits the flame signal of the pilot burner 7 to the controller 3.

Further, the controller 3 runs two sets of ignition programs, one set of which realizes the deflagration ignition of the inner flame transfer, and the other set of which realizes the long open flame ignition of the inner flame transfer. (a) deflagration firing program: as shown in fig. 5, after the controller receives the starting ignition signal, the starting igniter 5 is continuously discharged to ignite, and the mixed gas is continuously discharged (the discharging interval is 2 seconds), so that the combustion of a plurality of fireballs of the mixed gas is realized, a plurality of flames are then expanded, the pressure of the flame transmitting tube is continuously increased, the first fireball is rapidly uploaded to the outlet of the flame transmitting tube, the fireball coming out of the outlet ignites the igniting burner 7, and the flame sprayed out of the igniting burner ignites the discharged gas; (B) procedure for ignition with long open flame: as shown in fig. 6, after the controller receives the starting ignition signal, the starter 5 is started to perform pulse discharge and ignition, the discharge head is subjected to pulse discharge (discharge interval is 20 seconds), only one flame ball is ensured to be arranged in the flame transmitting tube within 20 seconds, the mixed gas is arranged in front of and behind the flame ball, when the flame ball is sprayed out of the outlet of the flame transmitting tube, the mixed gas is always arranged behind the flame ball, and is also burnt at the outlet of the flame transmitting tube after being sprayed out of the outlet of the flame transmitting tube, so that stable flame is formed, the controller always starts the gas electromagnetic valve, the mixed gas is always burnt at the outlet of the flame transmitting tube, so that long-term open flame is formed, and the long-term open flame ignites the discharged gas. By adopting the ignition mode of the pilot fire, the pilot burner 7 can be omitted, thus saving the equipment configuration of the ignition device and the matched accessories (pilot burner gas and matched gas distribution pipes), and playing the advantage of saving the cost.

Further, the igniter 5 has multiple paths of high-voltage outputs, and meanwhile, a high-voltage output switching module is arranged, and the high-voltage outputs are switched through feedback signals of the discharge and flame monitors, so that the multiple paths of high-voltage modules and the discharge heads are ensured to be automatically switched to other high-voltage modules and the discharge heads after the quality life cycle comes, and reliable ignition is realized.

Further, the pilot burner 7 is a visual wind-resistant burner with visual and wind-resistant structural design. The visual wind-resistant burner has the advantages that the burning flame can be observed in the sunny day, and the wind-resistant capacity reaches 12 levels, so that the exhaust gas can be reliably ignited; the visual and wind-resistant structural design of course adopts the prior art scheme.

Further, a flame monitoring device 4 for monitoring the combustion state of the pilot burner 7 is also provided, which is connected to the controller 3. The flame monitor detects the combustion state of the exhaust gas and feeds back a signal to the controller 3.

It is also emphasized that in this embodiment: the working process of the mixer 6 is as follows:

after the speed of the gas inlet pipe 61 is increased through the nozzle 65, the gas inlet pipe enters the ejector 64, the inner cavity of the ejector forms negative pressure, and the air sucked into the air chamber 626 enters the primary mixing section 66, passes through the primary diffusion section 67, the secondary mixing section 68 and the secondary diffusion section 69 and enters the ignition chamber 610; the discharge head 611 is connected with the multi-path high-voltage output of the igniter 5 through a high-voltage wire, and is further provided with a discharge head and a flame monitoring sensor 612, which monitors whether the discharge head 612 discharges and whether the mixed gas is ignited or not at the moment, and the signal and the flame signal of the discharge are fed back to the igniter 5.

The ignition of the inner flame transfer is realized: after receiving the starting ignition signal, the igniter controller 3 opens the electromagnetic valve on the flammable gas control valve group 2, the gas inlet pipe 61 enters the ejector 64 after being accelerated by the nozzle 65, the inner cavity of the ejector forms negative pressure, and the air sucked into the air chamber 626 enters the primary mixing section 66, passes through the primary diffusion section 67-the secondary mixing section 68-the secondary diffusion section 69 and enters the ignition chamber 610; wherein the discharge head 611 is connected with the multi-path high voltage output of the igniter 5 through a high voltage line; (a) deflagration firing program: when the controller receives a signal of a deflagration mode, starting the igniter 5 to perform continuous discharge and ignition, and performing continuous discharge (discharge interval is 2 seconds) to realize the combustion of a plurality of flame balls of mixed gas, wherein a plurality of flames are then expanded, the pressure of a flame transmitting pipe is continuously increased, a first flame ball is rapidly uploaded to an outlet of the flame transmitting pipe, the flame ball coming out of the outlet ignites a pilot burner (7), and the flame sprayed out of the pilot burner ignites the exhaust gas; (B) procedure for ignition with long open flame: when the controller receives a signal of ignition in a pilot burner mode, the igniter (5) is started to perform pulse discharge ignition, the discharge head performs pulse discharge (discharge interval is 20 seconds), only one flame ball is guaranteed to be arranged in the flame transmitting tube within 20 seconds, mixed gas is arranged in front of and behind the flame ball, when the flame ball is sprayed out of the outlet of the flame transmitting tube, the mixed gas is always arranged behind the flame ball, and is also burnt at the outlet of the flame transmitting tube after being sprayed out of the outlet of the flame transmitting tube, so that stable flame is formed, the controller always starts a fuel gas electromagnetic valve, the mixed gas is always burnt at the outlet of the flame transmitting tube, pilot burner is formed, and the discharged gas is ignited by the pilot burner. The ignition mode of the pilot fire is adopted, the pilot burner (7) can be omitted, thus saving equipment configuration of an ignition device and accessories (pilot burner gas and matched gas distribution pipes) to achieve the advantage of saving cost.

The inner flame transfer ignition device has the advantages that:

1. the inner flame transfer discharge head 611 (or electrode) and the high-voltage wire are far away from the outlet of the emptying torch (or drilling discharge) by a distance not smaller than 100 meters, and the discharge head (or electrode) and the high-voltage wire are far away from the high-temperature area, so that the service life of the whole ignition device can be improved into geometric indexes, and the success rate of ignition is ensured.

2. The special structure of the mixer 6 ensures that after the pressure and flow parameters are once set, the pressure and flow parameters are not required to be regulated any more, and the internal flame transfer ignition can be repeatedly used all the time. Meanwhile, the flame arrester is arranged on the mixer to prevent flame in the mixer from being sprayed out to the atmosphere, so that the safety problem occurs.

3. The gas discharge working condition without compressed air configuration can also realize convenient and reliable inner flame transfer ignition.

4. The mixer 6 is provided with the plurality of discharge heads 611 and the discharge head discharge machine flame monitoring sensor 312, so that after the quality life cycle of the discharge heads 611 comes, the discharge heads can be automatically switched to the high-voltage modules of other discharge heads and igniters for discharging and igniting, and the automatic unmanned switching is realized, so that the service life of the ignition device is greatly prolonged and the success rate of ignition is ensured.

5. The controller is provided with 2 sets of ignition programs, so that the explosion and the long-term open flame ignition can be realized, and the ignition success rate is greatly improved.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. The internal flame transfer ignition device comprises an igniter controller (3), an igniter (5) and a pilot burner (7), and further comprises a combustible gas inlet (1), a combustible gas control valve group (2) and a mixer (6) which are sequentially connected, wherein the igniter controller (3) is used for controlling the combustible gas control valve group (2), the igniter controller (3) is connected with the igniter (5), the igniter (5) is used for igniting in the mixer (6), the mixer (6) transmits flame to the pilot burner (7) through a flame transfer pipe (8), and the pilot burner (7) is connected with the combustible gas control valve;

the method is characterized in that: the mixer (6) draws in air in the atmosphere at a fixed pressure and flow rate and mixes the combustible gas and air for ignition.

2. The inner flame-transfer ignition device according to claim 1, characterized in that the mixer (6) comprises: a jet distributor and an ignition chamber (84) in sequential communication;

the input end of the jet flow type distributor is connected with the output end of the flammable gas control valve group (2);

the output end of the jet distributor is connected with the input end of the ignition chamber (84);

the ignition chamber (84) is controlled to ignite by the igniter (5).

3. The inner flame transfer ignition device according to claim 2, further comprising a mixing chamber (83), wherein an input end of the mixing chamber (83) is connected to an output end of the jet distributor, an output end of the mixing chamber is connected to an input end of the ignition chamber (84), a plurality of spoilers (85) are arranged in the mixing chamber (83), and through holes (86) are formed in the spoilers (85).

4. An inner flame transfer ignition device according to claim 3, characterized in that an acceleration aperture (87) is further provided, said acceleration aperture (87) communicating said mixing chamber (83) with an ignition chamber (84), the inlet radius of said acceleration aperture (87) being larger than the outlet radius of said acceleration aperture (87).

5. The inner flame-transfer ignition device according to claim 4, characterized in that the furthest distance of the spoiler (85) from the inner wall of the mixing chamber (83) is located between the inlet and the outlet of the acceleration aperture (87) as projected in the axial direction of the mixing chamber (83).

6. An inner flame transfer ignition device according to claim 2, characterized in that a flame monitoring device (4) for monitoring the combustion state of the pilot burner (7) is also provided, which is connected to the igniter controller (3).

7. The inner flame-transfer ignition device according to claim 1, characterized in that the mixer (6) comprises: the device comprises a mixer gas inlet pipe (61), a multifunctional air distributor (62), a wind regulating disc (63), an ejector (64), a nozzle (65), a primary mixing section (66), a primary diffusion section (67), a secondary mixing section (68), a secondary diffusion section (69), an ignition chamber (610), a discharge head (611) and a discharge and flame monitor (612);

one end of the gas inlet pipe (61) of the mixer is connected with the output end of the flammable gas control valve group (2); the other end is connected with the nozzle;

the ejector (64), the primary mixing section (66), the primary diffusion section (67), the secondary mixing section (68), the secondary diffusion section (69) and the ignition chamber (610) are sequentially communicated;

the ejector (64) is of a tubular structure with a large inlet and a small outlet; the air adjusting disc (63) is arranged close to the inlet of the ejector and used for adjusting the air inflow of the inlet of the ejector (64);

the nozzle (65) is of a tubular structure with a large inlet and a small outlet, and is arranged in the ejector (64);

the primary mixing section (66) is an equal-diameter straight pipe and has the same diameter as the outlet of the ejector (64);

the primary diffusion section (67) has a tubular structure with a small inlet and a large outlet, and the inlet of the primary diffusion section is consistent with the diameter of the primary mixing section (66);

the secondary mixing section (68) is an equal-diameter straight pipe, and the diameter of the equal-diameter straight pipe is consistent with that of the primary diffusion section (67);

the secondary diffusion section (69) has a tubular structure with a small inlet and a large outlet, and the inlet diameter of the secondary diffusion section is consistent with the diameter of the secondary mixing section (68); the diameter of the ignition chamber (610) and the outlet diameter of the secondary diffusion section (69) are consistent;

the ignition chamber (610) is provided with a discharge head (611) and a discharge and flame monitor (612);

-the discharge head (611) is used to ignite a mixture of gases;

the discharge and flame monitor (612) is communicatively connected to the igniter controller (3);

one end of the multifunctional air distributor (62) is fully wrapped with an air inlet of the ejector (64), the air adjusting disc (63) and the mixer gas inlet pipe (61); the other end is communicated with the outside air.

8. The inner flame transfer ignition device of claim 7, wherein a flame arrester (623) is provided inside the multifunctional air dispenser (62).

9. The inner flame-transferred ignition device of claim 7, wherein the discharge interval of the igniter comprises 0.5s to 4s and 20s to 40s.