An outlet flow rate control device for hydrogen combustion

Abstract

This utility model discloses an outlet flow rate control device for hydrogen combustion in the field of hydrogen combustion technology, including a gas supply connection seat and a mixing chamber hood. One end of the gas supply connection seat near the mixing chamber hood is rotatably connected to a supplementary connection sleeve. A combustion-supporting material replenishment connector is provided on the outer side of the supplementary connection sleeve. A gear adjustment disc is provided on the outer side of the connection end between the gas supply connection seat and the supplementary connection sleeve, and gear markings are provided on the outer side of the gear adjustment disc. Alignment markings are provided on the outer wall of the supplementary connection sleeve. An inner cylinder is integrally formed at the center of the supplementary connection sleeve. This utility model includes a gas supply connection seat, a supplementary connection sleeve, and a mixing chamber hood. A unit adjustment disc is provided between the gas supply connection seat and the supplementary connection sleeve to adjust the amount of hydrogen supplied. The supplementary connection sleeve has a combustion-supporting material replenishment connector, which allows for the replenishment of combustion-supporting materials according to different hydrogen combustion environments to meet the requirements for complete hydrogen combustion.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydrogen combustion, specifically, it relates to an outlet flow rate control device for hydrogen combustion. Background Technology

[0002] Hydrogen burners are a completely new type of burner that uses hydrogen as fuel. When hydrogen burns in air, the oxygen in the air is sufficient for combustion, and usually no additional oxygen is needed. However, if there is insufficient oxygen during hydrogen combustion, such as in a confined space where the hydrogen concentration is too high and the oxygen concentration is insufficient, or in an outdoor environment where oxygen is scarce, incomplete combustion may occur due to lack of oxygen. Incompletely burned hydrogen enters the air, and due to the flammability of hydrogen, the increased concentration of hydrogen in the air poses a significant safety hazard.

[0003] In view of this, this utility model is hereby proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an outlet flow rate control device for hydrogen combustion. To solve the above technical problem, the basic concept of the technical solution adopted by this utility model is as follows: An outlet flow rate control device for hydrogen combustion includes a gas supply connector and a mixing chamber hood. One end of the gas supply connector near the mixing chamber hood is rotatably connected to a supplementary connector. A combustion-supporting material replenishment connector is provided on the outer side of the supplementary connector. A gear adjustment disc is provided on the outer side of the connection end between the gas supply connector and the supplementary connector, and gear markings are provided on the outer side of the gear adjustment disc. Alignment markings are provided on the outer wall of the supplementary connector. An inner cylinder is integrally formed at the center of the supplementary connector. An outer mating sleeve is provided inside the gas supply connector, and a hydrogen inlet hole is provided on the outer mating sleeve. A hydrogen flow hole is provided on the side wall of the inner cylinder. The mixing chamber hood and the supplementary connector are connected by threads. The outer end of the mixing chamber hood has a conical structure, and a discharge mesh plate with a perforated structure is provided on the end face.

[0005] As a further embodiment of this utility model: four sets of hydrogen flow holes are provided on the outer wall of the inner cylinder, the four sets of hydrogen flow holes are clamped at 90° in the circumferential direction, and the four sets of hydrogen flow holes cooperate with the hydrogen supply hole to form four positions to adjust the amount of hydrogen supplied.

[0006] As a further improvement of this utility model: a sealing groove is provided between the outer wall of the inner cylinder and the inner wall of the outer mating sleeve, and a sealing ring is provided in the sealing groove. The sealing ring is made of a high-temperature resistant material, so that the fit between the gas supply connector and the supplementary connector has good sealing performance.

[0007] As a further improvement of this utility model: the outer side of the gear adjustment plate is provided with anti-slip grooves, and the end of the gas supply connection seat away from the supplementary connection sleeve is provided with a connection end, which is used to connect to the hydrogen supply pipeline.

[0008] As a further embodiment of this utility model: a mating ring groove is provided on the end face of the gear adjustment disc, a limiting mating ring is provided on the end face of the supplementary connecting sleeve, the end of the limiting mating ring is located in the mating ring groove, and a limiting plate is installed on the outside of the mating ring groove by a limiting mounting screw for connecting and limiting the limiting mating ring.

[0009] As a further embodiment of this utility model: a combustion-supporting material storage cavity is formed between the inner wall of the supplementary connecting sleeve and the outer wall of the inner cylinder, and a mating sealing seat is provided at the position where the mixing chamber cover and the open end of the inner cylinder are mated, and the shape and specifications of the mating sealing seat are adapted to the shape and specifications of the inner cylinder.

[0010] As a further improvement of this utility model: a mating sealing gasket is provided inside the mating sealing seat, and a combustion-supporting material inlet hole is opened on the large end face of the mixing chamber cover to facilitate the combustion-supporting material entering the mixing chamber cover.

[0011] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0012] This utility model is provided with a gas supply connection seat, a replenishment connection sleeve and a mixing chamber cover. A unit adjustment disc is provided between the gas supply connection seat and the replenishment connection sleeve to adjust the amount of hydrogen supplied. The replenishment connection sleeve is provided with a combustion aid replenishment connector, which can replenish combustion aids according to different hydrogen combustion environments to meet the requirements for complete hydrogen combustion.

[0013] The design of the mixing chamber hood in this invention allows the hydrogen gas to be discharged in a relatively dispersed manner, avoiding the formation of a concentrated gas column. This, in turn, allows for better contact with combustion-supporting materials in the external environment, thereby achieving complete combustion of the hydrogen gas and improving safety.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of the present invention; Figure 3 This is an overall sectional view of the present invention; Figure 4 This is a cross-sectional view of the end face of the outer mating sleeve of this utility model; Figure 5 This is a partial enlarged view of point A of this utility model.

[0016] In the diagram: 1. Gas supply connector; 2. Supplementary connector; 3. Gear adjustment disc; 4. Gear markings; 5. Alignment markings; 6. Mixing chamber hood; 7. Discharge mesh plate; 8. Connecting end; 9. Combustion oxidizer supplement connector; 10. Inner cylinder; 11. Outer mating sleeve; 12. Hydrogen inlet; 13. Sealing groove; 14. Sealing ring; 15. Mating sealing seat; 16. Mating sealing gasket; 17. Hydrogen flow hole; 18. Mating ring groove; 19. Limiting mating ring; 20. Limiting plate; 21. Limiting mounting screw; 22. Combustion oxidizer inlet.

[0017] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] like Figures 1 to 5 As shown, an outlet flow rate control device for hydrogen combustion includes a gas supply connector 1 and a mixing chamber hood 6. The end of the gas supply connector 1 near the mixing chamber hood 6 is rotatably connected to a supplementary connector 2. A combustion aid supplement connector 9 is provided on the outer side of the supplementary connector 2. A gear adjustment disc 3 is provided on the outer side of the connection end between the gas supply connector 1 and the supplementary connector 2. Gear adjustment disc 3 has gear markings 4 on its outer side. Alignment markings 5 ​​are provided on the outer wall of the supplementary connector 2. An inner cylinder 10 is integrally provided at the center of the supplementary connector 2. An outer mating sleeve 11 is provided inside the gas supply connector 1. A hydrogen inlet hole 12 is provided on the outer mating sleeve 11. A hydrogen flow hole 17 is provided on the side wall of the inner cylinder 10. The mixing chamber hood 6 and the supplementary connector 2 are connected by threads. The outer end of the mixing chamber hood 6 has a conical structure, and a discharge mesh plate 7 with a mesh structure is provided on the end face.

[0020] The inner cylinder 10 has four sets of hydrogen flow holes 17 on its outer wall. The four sets of hydrogen flow holes 17 are clamped at 90° in the circumferential direction. The four sets of hydrogen flow holes 17 cooperate with the hydrogen supply hole 12 to form four levels to adjust the amount of hydrogen supplied.

[0021] A sealing groove 13 is provided between the outer wall of the inner cylinder 10 and the inner wall of the outer mating sleeve 11. A sealing ring 14 is provided in the sealing groove 13. The sealing ring 14 is made of high temperature resistant material so that the fit between the gas supply connection seat 1 and the supplementary connection sleeve 2 has good sealing performance.

[0022] The gear adjustment plate 3 has anti-slip grooves on its outer side, and the gas supply connection seat 1 has a connection end 8 at the end away from the supplementary connection sleeve 2. The connection end 8 is used to connect the hydrogen supply pipeline.

[0023] A mating ring groove 18 is provided on the end face of the gear adjustment disc 3, and a limiting mating ring 19 is provided on the end face of the supplementary connecting sleeve 2. The end of the limiting mating ring 19 is located in the mating ring groove 18, and a limiting plate 20 is installed on the outside of the mating ring groove 18 by a limiting mounting screw 21 for connecting and limiting the limiting mating ring 19. The air supply connecting seat 1 can rotate relative to the supplementary connecting sleeve 2, and the position in the length direction remains unchanged during the rotation process.

[0024] A combustion-supporting material storage cavity is formed between the inner wall of the supplementary connecting sleeve 2 and the outer wall of the inner cylinder 10. A mating sealing seat 15 is provided at the mating position of the mixing chamber cover 6 and the open end of the inner cylinder 10. The shape and specifications of the mating sealing seat 15 are adapted to the shape and specifications of the inner cylinder 10.

[0025] A sealing gasket 16 is provided inside the sealing seat 15, and a combustion-supporting material inlet hole 22 is provided on the large end face of the mixing chamber cover 6 to facilitate the entry of the combustion-supporting material into the mixing chamber cover 6.

[0026] The working principle of this utility model is as follows: The connecting end 8 of the gas supply connector 1 is connected to the hydrogen supply pipeline. Hydrogen is supplied into the gas supply connector 1. The hydrogen enters the inner cylinder 10 through the hydrogen inlet hole 12 on the outer fitting sleeve 11 and the hydrogen flow hole 17 on the inner cylinder 10 corresponding to the hydrogen inlet hole 12. The inner cylinder 10 is connected to the inside of the mixing chamber 6. The hydrogen enters the mixing chamber 6 and is discharged from the discharge mesh plate 7 to supply combustion. The setting of the discharge mesh plate 7 can allow the hydrogen to diffuse to the outside, which is convenient for full contact with the air and complete combustion. If it is in an indoor environment with poor indoor and outdoor air circulation and low oxygen content in the indoor air, or in an outdoor environment with relatively high altitude and thin oxygen, or in other cases, oxygen needs to be supplemented. Oxygen can be supplemented by connecting the oxygen supply pipeline through the combustion aid supplement connector 9 to ensure complete combustion of hydrogen. The combustion displacement of hydrogen can be adjusted by the gear adjustment disc 3. When the gear adjustment disc 3 is rotated, the gas supply connection seat 1 rotates relative to the supplementary connection sleeve 2, thereby realizing the rotation of the outer mating sleeve 11 relative to the inner cylinder 10. The inner cylinder 10 is provided with four sets of hydrogen flow holes 17 of different specifications. By matching the hydrogen flow holes 17 of different specifications with the hydrogen supply hole 12, the hydrogen outlet volume can be adjusted. The setting of the gear mark 4 and the alignment mark 5 makes it easy to observe the adjustment gear. When adjusted to the appropriate gear, the device is in a static state during combustion. In the actual operation of hydrogen combustion devices, it is usually necessary to install monitoring devices to monitor the concentration of hydrogen in the environment in order to determine whether the hydrogen is fully combusted and make timely adjustments. Hydrogen concentration monitoring is existing technology and will not be elaborated further. This utility model features a reasonable structural design and is easy to install and use. It includes a gas supply connector 1, a supplementary connector 2, and a mixing chamber hood 6. A unit adjustment disc is provided between the gas supply connector 1 and the supplementary connector 2 to adjust the amount of hydrogen supplied. The supplementary connector 2 is equipped with a combustion-supporting material replenishment connector 9, which can be used to replenish combustion-supporting materials according to different hydrogen combustion environments to meet the requirements for complete hydrogen combustion. The mixing chamber hood 6 allows the hydrogen to be discharged in a relatively dispersed manner, avoiding the formation of a concentrated gas column, thus enabling better contact with combustion-supporting materials in the external environment, thereby achieving complete hydrogen combustion and improving safety.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An outlet flow rate control device for hydrogen combustion, comprising a gas supply connection seat (1) and a mixing chamber hood (6), characterized in that, The gas supply connector (1) is rotatably connected to the supplementary connector (2) at one end near the mixing chamber cover (6). The supplementary connector (2) is provided with a combustion aid supplement connector (9) on the outer side. The gas supply connector (1) is provided with a gear adjustment plate (3) on the outer side of the connection end with the supplementary connector (2). The gear adjustment plate (3) is provided with a gear marking line (4) on the outer side. The supplementary connector (2) is provided with a calibration marking line (5) on the outer wall. The supplementary connector (2) is provided with an inner cylinder (10) integrally located at the center. The gas supply connector (1) is provided with an outer fitting sleeve (11). The outer fitting sleeve (11) is provided with a hydrogen inlet hole (12). The inner cylinder (10) is provided with a hydrogen flow hole (17) on the side wall. The mixing chamber cover (6) and the supplementary connector (2) are connected by threads. The outer end of the mixing chamber cover (6) is a conical structure with a discharge mesh plate (7) on the end face.

2. An exit flow rate control device for hydrogen combustion according to claim 1, wherein The outer wall of the inner cylinder (10) is provided with four sets of hydrogen flow holes (17). The four sets of hydrogen flow holes (17) are clamped at 90° in the circumferential direction. The four sets of hydrogen flow holes (17) cooperate with the hydrogen supply hole (12) to form four positions.

3. An exit flow rate control device for hydrogen combustion according to claim 2, wherein A sealing groove (13) is provided between the outer wall of the inner cylinder (10) and the inner wall of the outer mating sleeve (11), and a sealing ring (14) is provided in the sealing groove (13), and the sealing ring (14) is made of a high temperature resistant material.

4. An exit flow rate control device for hydrogen combustion according to claim 3, wherein The gear adjustment plate (3) is provided with anti-slip grooves on the outside, and the gas supply connection seat (1) is provided with a connection end (8) at the end away from the supplementary connection sleeve (2).

5. An exit flow rate control device for hydrogen combustion according to claim 4, wherein The gear adjustment disc (3) has a mating ring groove (18) on its end face, and the supplementary connecting sleeve (2) has a limiting mating ring (19) on its end face. The end of the limiting mating ring (19) is located in the mating ring groove (18), and a limiting plate (20) is installed on the outside of the mating ring groove (18) by a limiting mounting screw (21).

6. An exit flow rate control device for hydrogen combustion according to claim 5, wherein A combustion-supporting material storage cavity is formed between the inner wall of the supplementary connecting sleeve (2) and the outer wall of the inner cylinder (10), and a mating sealing seat (15) is provided at the mating position of the mixing chamber cover (6) and the open end of the inner cylinder (10).

7. An exit flow rate control device for hydrogen combustion according to claim 6, wherein The mating sealing seat (15) is provided with a mating sealing gasket (16), and the mixing chamber cover (6) is provided with a combustion-supporting material inlet hole (22) on the large end face.

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