A torch burner suitable for green electricity hydrogen ammonia alcohol

Abstract

The utility model relates to the technical field of torch burner, specifically disclose a kind of torch burner suitable for green electricity hydrogen ammonia alcohol, including torch body, the outside of torch body is fixedly arranged with annular feed pipe, the top of annular feed pipe is fixedly arranged with several accompanying combustion gas supply pipe, the bottom of annular feed pipe is fixedly arranged with three-way valve pipe, this torch burner suitable for green electricity hydrogen ammonia alcohol, utilize the pressure variation generated by hydrogen and ammonia gas supply amount difference, push valve plate automatic regulation air intake section.Pressure rises when gas supply is large, valve plate moves up and reduces air hole, inhibits flow rate;Pressure reduces when gas supply is small, spring reset increases air intake, realize self-balancing adjustment without external control, response fast, stable operation, cooperate with the mixing uniformity of turbulence structure promotion, ensure stable combustion.

Description

Technical Field

[0001] This utility model relates to the field of torch burner technology, specifically a torch burner suitable for green electricity production of hydrogen ammonia. Background Technology

[0002] In the green electricity-to-hydrogen-ammonia-methanol process, the combustion chamber needs to continuously burn a hydrogen-ammonia mixture to maintain the required reaction temperature. In this process, the hydrogen production stage is affected by fluctuations in power generation, and the hydrogen output changes dynamically. This necessitates real-time adjustment of the hydrogen-ammonia ratio in the hydrogen-ammonia mixture to ensure stable operation of the combustion chamber and meet the subsequent ammonia-methanol synthesis requirements.

[0003] Existing flare burners have shortcomings. When the output of hydrogen produced from green electricity increases, the hydrogen input increases, which can easily lead to an imbalance in the hydrogen-ammonia ratio and the risk of deflagration caused by excessive hydrogen concentration. When the output of hydrogen decreases, the ammonia concentration increases relatively, which can cause flame extinction due to the high ignition energy and slow flame propagation of ammonia. To address this, we propose a flare burner suitable for hydrogen, ammonia and alcohol production from green electricity. Utility Model Content

[0004] The purpose of this invention is to provide a flare burner suitable for green electricity hydrogen production (ammonia-methanol) to solve the problems mentioned in the background art. In actual operation, when the output of green electricity hydrogen production increases, the hydrogen input increases, which can easily lead to an imbalance in the hydrogen-ammonia ratio and the risk of deflagration caused by excessive hydrogen concentration. When the hydrogen output decreases, the ammonia concentration increases relatively, which can cause the flame to extinguish due to the high ignition energy and slow flame propagation characteristics of ammonia.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flare burner suitable for green electricity production of hydrogen, ammonia, and alcohol, comprising a flare body, an annular feed pipe fixedly disposed on the outer side of the flare body, a plurality of accompanying gas supply pipes fixedly disposed at the top end of the annular feed pipe, a three-way valve pipe fixedly disposed at the bottom end of the annular feed pipe, and an adaptive adjustment component disposed inside the three-way valve pipe, the adaptive adjustment component adjusting the flow area according to the required ratio of hydrogen and ammonia during operation.

[0006] The adaptive adjustment component includes an adjustment rod, the bottom end of which is rotatably mounted inside the three-way valve tube via a rotating shaft. The top end of the three-way valve tube is connected to the annular feed pipe, and hydrogen and ammonia pipes are fixedly mounted at the other two ends of the three-way valve tube, respectively.

[0007] The top of the adjusting rod has several turbulent flow protrusions, and both ends of the adjusting rod are equipped with drive rods that rotate via shafts. The bottom of the drive rod is equipped with a metal push rod that rotates via shafts.

[0008] Both the hydrogen and ammonia pipes have sliding grooves inside. A valve plate is fixedly installed at the bottom of the metal push rod. Several air holes are opened at the top of the valve plate. Rollers are installed at both ends of the valve plate through a rotating shaft.

[0009] One end of the roller is movably positioned inside the sliding groove, and the other end of the roller movably abuts against the inner wall of the sliding groove. Limit rings are installed inside both the hydrogen pipe and the ammonia pipe, and a return spring is movably sleeved on the outside of the metal push rod.

[0010] The bottom end of the return spring is fixedly provided with the top end of the valve plate, the top end of the return spring is fixedly provided with the bottom end of the limit ring, and baffles are fixedly provided on both sides of the top end of the adjusting rod.

[0011] This utility model has at least the following beneficial effects: This invention utilizes the pressure difference caused by varying supply volumes of hydrogen and ammonia to achieve adaptive regulation of the intake flow. When the supply volume of one gas increases, the pressure within the pipeline rises, acting on the bottom of the valve plate and pushing it upwards. This gradually blocks the vent, reducing the intake cross-section and suppressing excessively rapid flow growth. Conversely, when the supply volume decreases and the pressure drops, the return spring pushes the valve plate downwards, re-exposing the vent and increasing the intake cross-section to ensure continuous gas flow. This mechanism allows the valve plate to not only be controlled by an external adjustment mechanism but also to automatically respond to changes in gas source pressure, forming a dual control mode of "active regulation + passive compensation." Especially when hydrogen pressure suddenly rises or ammonia supply fluctuates, it can suppress drastic flow changes in advance, preventing unstable combustion or flameout. This process requires no additional sensors or electronic control systems, relying on the fluid's own pressure to achieve self-balancing regulation, resulting in rapid response and reliable operation. Simultaneously, the rollers and sliding grooves work together to ensure smooth valve plate movement and prevent jamming. After the mixed gas is adjusted to a stable ratio, it is further mixed by a turbulence structure and finally reliably ignited at the torch head, achieving efficient and clean combustion. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the adaptive adjustment component structure of this utility model; Figure 3 This is an enlarged schematic diagram of the structure at point A of this utility model; Figure 4 This is an enlarged schematic diagram of the structure at point B of this utility model.

[0013] In the diagram: 1. Flare body; 2. Annular feed pipe; 3. Accompanying gas supply pipe; 4. Three-way valve pipe; 5. Adaptive adjustment component; 501. Adjusting rod; 502. Hydrogen pipe; 503. Ammonia pipe; 504. Turbulence protrusion; 505. Metal push rod; 506. Sliding groove; 507. Valve plate; 508. Gas hole; 509. Roller; 510. Limiting ring; 511. Return spring; 512. Baffle; 513. Drive rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides a technical solution: a flare burner suitable for green electricity production of hydrogen, ammonia, and alcohol, including a flare body 1, an annular feed pipe 2, a combustion gas supply pipe 3, a three-way valve pipe 4, and an adaptive adjustment component 5 disposed inside the three-way valve pipe 4. The flare body 1 is a vertically arranged cylindrical combustion chamber used for high-temperature combustion of vented hydrogen, ammonia, or a mixture thereof. An annular feed pipe 2 is fixedly sleeved on the outer peripheral side wall of the flare body 1. The annular feed pipe 2 is evenly arranged circumferentially, and its outlet end is connected to the gas inlet of the flare body 1 to introduce the mixed gas into the combustion zone. Several combustion gas supply pipes 3 are evenly distributed at the top of the annular feed pipe 2. The combustion gas supply pipes 3 extend upward at an angle, with one end connected to an external ignition fuel source and the other end entering the head area of ​​the flare body 1 to provide an ignition flame or assist in stable combustion, especially when the ammonia content is high and the flammability is low, to ensure that the flame does not go out.

[0016] The three-way valve pipe 4 is fixedly connected to the bottom of the annular feed pipe 2. It has a Y-shaped three-way structure, including one outlet end and two inlet ends. The outlet end is connected upward to the annular feed pipe 2, and the two inlet ends extend horizontally and are connected to external gas sources: one side is a hydrogen pipe 502, which is used to connect hydrogen produced by green electricity electrolysis of water; the other side is an ammonia pipe 503, which is used to connect ammonia synthesized from green hydrogen. The three-way valve pipe 4 is hollow inside, forming a gas mixing and regulation space. An adaptive adjustment component 5 is provided inside the three-way valve pipe 4, which is used to automatically adjust the mixing ratio of hydrogen and ammonia according to the system operating conditions to ensure combustion efficiency and safety. The adaptive adjustment component 5 includes an adjustment rod 501, which is a rigid metal rod. Its bottom end is hinged to the center of the inner bottom surface of the three-way valve pipe 4 through a pivot, and can swing freely around the pivot within a certain angle range. Baffles 512 are symmetrically fixed on both sides of the top of the adjustment rod 501 to receive the pushing force of the external actuator, thereby controlling its tilt direction and angle.

[0017] A few turbulence protrusions 504 are provided on the inner side wall of the top of the regulating rod 501. The turbulence protrusions 504 are hemispherical or conical protrusions and are distributed on the inner surface of the regulating rod 501. They are used to enhance the turbulence effect of hydrogen and ammonia during the mixing process and promote the rapid and uniform mixing of the two gases. The lower middle part of both sides of the regulating rod 501 is respectively connected to the driving rod 513 by a rotating shaft. The other end of each driving rod 513 is connected to the top of the metal push rod 505 by a rotating shaft. The metal push rod 505 is a vertically set connecting rod. Its bottom end is fixedly connected to a valve plate 507. The valve plate 507 is a circular plate structure and is matched and installed in the internal channel of the hydrogen pipe 502 and the ammonia pipe 503. Multiple evenly distributed air holes 508 are opened on the plate body of the valve plate 507 to control the gas flow cross-sectional area. When the valve plate 507 moves up and down, the air holes 508 are gradually exposed or closed to realize the throttling regulation of the gas flow.

[0018] Rollers 509 are mounted on both the left and right ends of the valve plate 507 via rotating shafts. The rollers 509 can roll in the sliding grooves 506 opened on the inner walls of the hydrogen pipe 502 and the ammonia pipe 503. The sliding grooves 506 are vertically elongated grooves that restrict the rollers 509 to move only in the vertical direction, thereby guiding the valve plate 507 to rise and fall smoothly and preventing deflection and jamming. A fixed limiting ring 510 is provided above the inside of the hydrogen pipe 502 and the ammonia pipe 503. The limiting ring 510 is fixed to the inner wall of the pipe by welding or threaded connection. A return spring 511 is sleeved on the outer periphery of the metal push rod 505. The top end of the return spring 511 abuts against the lower surface of the limiting ring 510, and the bottom end abuts against the upper surface of the valve plate 507. When no external force is applied, the return spring 511 provides an upward elastic force to push the valve plate 507 to the upper limit position, closing or reducing the gas passage.

[0019] During operation, when the green electricity-to-hydrogen-ammonia-methanol system is running, the hydrogen produced by water electrolysis and the ammonia synthesized from green hydrogen are mixed according to process requirements. Excess or unusable gases are treated by flare combustion. At this time, the flare burner enters the working state. The gases enter the three-way valve pipe 4 through hydrogen pipe 502 and ammonia pipe 503 respectively, ready to be mixed and then sent to the flare body 1 for combustion. To ensure stable combustion under different operating conditions, especially when the hydrogen-to-ammonia ratio frequently changes with fluctuations in green electricity, the system activates an adaptive adjustment mechanism.

[0020] The external control unit issues adjustment commands based on real-time monitoring of hydrogen production, ammonia supply, and combustion status, driving the actuator to act on the baffle 512 at the top of the adjusting rod 501, causing the adjusting rod 501 to tilt around its bottom pivot. Since the two sides of the adjusting rod 501 are hinged to the metal push rod 505 via drive rods 513, its tilting action is converted into differential displacement of the two drive rods.

[0021] When the adjusting rod 501 tilts towards the ammonia pipe 503, the driving rod 513 on the hydrogen side pushes the metal push rod 505 downward, causing the valve plate 507 inside the hydrogen pipe 502 to move downward against the elastic force of the return spring 511. The rollers 509 at both ends of the valve plate 507 slide down synchronously along the sliding groove 506, ensuring smooth and unobstructed movement. As the valve plate 507 moves downward, the vent 508 on it is gradually exposed, increasing the flow area of ​​the hydrogen channel and thus increasing the hydrogen flow rate. At the same time, the driving rod 513 on the ammonia side is driven upward due to the lever effect, and the metal push rod 505 moves upward, releasing the downward pressure on the valve plate 507. The elastic force of the return spring 511 on the ammonia side pushes the valve plate 507 upward, blocking the vent 508 and gradually closing the ammonia channel, thereby reducing the ammonia flow rate.

[0022] Conversely, when the system needs to increase the ammonia combustion ratio, the regulating rod 501 tilts towards the hydrogen pipe 502, closing the hydrogen passage and opening the ammonia passage, thus achieving reverse linkage regulation of the two gas intake volumes. After entering the central area of ​​the three-way valve pipe 4, the mixed gas flows through the interior of the regulating rod 501. The turbulence protrusions 504 on its inner wall disturb the airflow, enhancing the turbulent mixing effect of hydrogen and ammonia, reducing stratification, and improving mixing uniformity. Subsequently, the mixed gas enters the annular feed pipe 2 upwards and is evenly distributed circumferentially before being sent to the flare body 1. At the top of the flare body 1, the accompanying gas supply pipe 3 continuously supplies a small amount of flammable ignition gas, forming a stable ignition flame, ensuring that even under high ammonia ratio or low calorific value conditions, the main gas flow can be reliably ignited and continuous combustion maintained.

[0023] In the event of a control system failure or power outage, the return spring 511 automatically pushes the valve plates 507 on both sides upwards, causing the hydrogen and ammonia gas passages to tend to close, preventing a large leakage of flammable gases and ensuring system safety. The entire adjustment process only requires one actuator to drive the regulating rod 501 to complete the coordinated control of the two gas paths. It has a compact structure, rapid response, and does not require complex electronically controlled valve groups and independent drive units.

[0024] This invention utilizes the changes in gas pressure within hydrogen pipe 502 and ammonia pipe 503, along with the pressure of the gas flow acting on valve plate 507, to dynamically adjust the inlet cross-section. This further enhances the responsiveness and operational stability of the adaptive adjustment component 5, specifically offering the following advantages: During the operation of the green electricity-to-hydrogen-ammonia-methanol system, the supply of hydrogen and ammonia changes in real time with factors such as electrolysis load and synthesis reaction conditions, causing dynamic fluctuations in the gas pressure within hydrogen pipe 502 and ammonia pipe 503. When the supply of a certain gas path increases, the gas pressure within that path rises, and this pressure directly affects the inlet cross-section. The force exerted on the bottom of the valve plate 507 creates an upward thrust, which overcomes the elastic force of the return spring 511 and the constraint force of the metal push rod 505, pushing the valve plate 507 upward along the sliding groove 506. This gradually covers the air hole 508, reducing the air intake cross-section and thus automatically suppressing the excessively rapid increase in flow rate. Conversely, when the gas supply decreases and the pressure drops, the gas thrust acting on the valve plate 507 weakens, and the elastic force of the return spring 511 becomes dominant, pushing the valve plate 507 downward. The air hole 508 is exposed again, increasing the air intake cross-section and allowing more gas to flow in, thus maintaining a stable supply of mixed gas.

[0025] This mechanism allows the valve plate 507 to be actively controlled by the regulating rod 501 through the drive rod 513 and the metal push rod 505, and also passively adjusted according to the actual supply pressure of hydrogen and ammonia, forming a "active + passive" dual control mode. For example, when the hydrogen supply suddenly increases, the pressure in the hydrogen pipe 502 rises rapidly. Even if the regulating rod 501 has not yet completed its tilting action, the hydrogen-side valve plate 507 will automatically move upward due to the increased pressure, limiting the hydrogen flow in advance and preventing the instantaneous high hydrogen concentration gas from entering the torch body 1 and causing violent combustion fluctuations. Similarly, when the ammonia supply pressure drops sharply, the ammonia-side valve plate 507 will automatically move downward under the action of the return spring 511, increasing the air inlet cross section and preventing the flameout due to insufficient ammonia flow causing the mixture to be too lean.

[0026] Due to the significant differences in physical properties between hydrogen and ammonia—hydrogen has low density, high flow rate, and sensitive pressure response, while ammonia has high density, poor flowability, and is easily affected by pipeline resistance—this invention effectively balances the dynamic response differences between the two gases through the self-adjusting characteristics of the valve plate 507 under different pressures. This avoids the flow imbalance problem caused by pressure fluctuations in traditional fixed throttling structures. At the same time, the rollers 509 at both ends of the valve plate 507 roll within the sliding groove 506, ensuring that it can still rise and fall smoothly under gas pressure, reducing frictional resistance and improving response sensitivity.

[0027] After pressure self-regulation, the hydrogen-ammonia ratio of the mixed gas becomes more stable. After entering the central area of ​​the three-way valve pipe 4, it is disturbed by the turbulence protrusion 504 when flowing through the inside of the regulating rod 501, which further promotes uniform mixing. Then it enters the annular feed pipe 2 and is sent into the flare body 1. Under the action of the ignition flame provided by the combustion gas supply pipe 3, continuous, stable and efficient combustion is achieved. In summary, by using the gas pressure difference caused by the different supply of hydrogen and ammonia, the valve plate 507 is automatically adjusted to adjust the gas inlet cross section, realizing dynamic compensation and self-balancing control of gas flow. This not only enhances the adaptability of the flare burner to raw material gas fluctuations, but also improves combustion stability and system safety.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flare burner suitable for green electricity production of hydrogen ammonia, comprising a flare body, characterized in that: An annular feed pipe is fixedly installed on the outer side of the flare body. Several accompaniment gas supply pipes are fixedly installed at the top of the annular feed pipe. A three-way valve is fixedly installed at the bottom of the annular feed pipe. An adaptive adjustment component is installed inside the three-way valve. The adaptive adjustment component adjusts the flow area according to the required ratio of hydrogen and ammonia when it is working.

2. The flare burner for green electricity-to-hydrogen ammonia production according to claim 1, characterized in that: The adaptive adjustment component includes an adjustment rod, the bottom end of which is rotatably mounted inside the three-way valve tube via a rotating shaft. The top end of the three-way valve tube is connected to an annular feed pipe, and hydrogen and ammonia pipes are fixedly mounted at the other two ends of the three-way valve tube, respectively.

3. The flare burner for green electricity production of hydrogen ammonia as described in claim 2, characterized in that: The top of the adjusting rod is provided with several turbulence protrusions. Both ends of the adjusting rod are provided with drive rods that are rotatably mounted via a rotating shaft. The bottom end of the drive rod is provided with a metal push rod that is rotatably mounted via a rotating shaft.

4. The flare burner for green electricity production of hydrogen ammonia as described in claim 3, characterized in that: Both the hydrogen pipe and the ammonia pipe have sliding grooves inside. A valve plate is fixedly installed at the bottom of the metal push rod. Several air holes are opened at the top of the valve plate. Rollers are rotatably installed at both ends of the valve plate via a rotating shaft.

5. The flare burner for green electricity production of hydrogen ammonia as described in claim 4, characterized in that: One end of the roller is movably disposed inside the sliding groove, and one end of the roller movably abuts against the inner wall of the sliding groove. Limiting rings are provided inside both the hydrogen pipe and the ammonia pipe, and a return spring is movably sleeved on the outside of the metal push rod.

6. The flare burner for green electricity production of hydrogen ammonia as described in claim 5, characterized in that: The bottom end of the return spring is fixedly provided with the top end of the valve plate, the top end of the return spring is fixedly provided with the bottom end of the limiting ring, and baffles are fixedly provided on both sides of the top end of the adjusting rod.

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