Hydrogen and fuel gas mixing calorific value balancing device

Abstract

The utility model discloses a calorific value balancing device for mixing hydrogen and fuel gas, and relates to the technical field of gas mixing, in particular to a calorific value balancing device for mixing hydrogen and fuel gas, which comprises a mixer and is used for mixing hydrogen and fuel gas. The fuel gas inlet is integrally formed in the left side of the front end of the tank cover, the hydrogen inlet is integrally formed in the right side of the rear end of the tank cover, the rotating shaft is rotationally installed in the center of the interior of the tank cover, and the blades are fixed to the outer wall of the rotating shaft; the pore plate assembly is arranged on the main body assembly and is used for three-stage mixing; by adopting a tangential gas inlet mode, gas forms rotational flow, so that mixing is promoted; meanwhile, the gas drives the blades to rotate by taking the rotating shaft as the axis, so that the hydrogen and the fuel gas can be quickly dispersed and uniformly mixed, and an efficient mixing effect is realized under relatively low energy consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of gas mixing, in particular to a calorific value balancing device for hydrogen and fuel gas blending. Background Art

[0002] A calorific value balancing device for hydrogen and fuel gas blending aims to achieve uniform mixing of hydrogen and fuel gas (such as natural gas), and adjust the mixing ratio to achieve calorific value balance, thereby improving combustion efficiency and energy utilization rate;

[0003] Upon inquiry, the publication number: CN213668741U discloses a natural gas hydrogen blending device. In this technology, "a natural gas hydrogen blending device is disclosed, including a hydrogen storage tank and a natural gas storage tank, and further including a buffer tank. One end of the buffer tank is provided with an intake pipe, and the other end is provided with an exhaust pipe. One end of the natural gas storage tank is provided with a first connection pipe, and an exhaust pipe is sleeved inside the first connection pipe. A one-way valve structure is provided at the pipe orifice of the exhaust pipe. The exhaust pipe can only exhaust gas from the buffer tank to the first connection pipe, and is self-sealing in the reverse direction" and other technical solutions, having "connect the natural gas storage tank to the first connection pipe, connect the hydrogen storage tank to the second pipe, inject hydrogen from the hydrogen storage tank into the buffer tank. Under the action of the one-way valve, hydrogen can only flow unidirectionally towards the buffer tank. Drive the hydraulic cylinder to move the connecting plate downward, drive the push rod to push the piston plate, increase the pressure in the buffer tank, and under the action of the pressure, inject the hydrogen in the buffer tank into the natural gas storage tank. The one-way valve can ensure that hydrogen flows unidirectionally into the natural gas storage tank to avoid gas mixing" and other technical effects;

[0004] During the use of the gas mixing device in the above solution, the mixing of hydrogen and fuel gas will rely on natural convection or a simple diffusion process, which often leads to uneven distribution of hydrogen concentration in the mixed gas. In some areas, the hydrogen concentration may be too high, while in other areas it may be too low; the areas with too high hydrogen concentration may cause too fast combustion, generate local high temperature, and even cause flashback or pre-ignition phenomena; while the areas with too low concentration may have incomplete combustion, generating harmful emissions such as carbon monoxide. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a calorific value balancing device for hydrogen and fuel gas blending, which has the characteristics of promoting mixing by adopting a tangential intake method to make the gas form a swirling flow; at the same time, the gas drives the blades to rotate around the rotating shaft, and can quickly disperse and mix hydrogen and fuel gas evenly, achieving an efficient mixing effect with low energy consumption.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: A calorific value balancing device for hydrogen and fuel gas blending, including a mixer for mixing hydrogen and fuel gas, and the mixer includes:

[0007] The main body component includes a tank cover installed at the upper end of the tank body, a gas inlet integrally formed on the left side of the front end of the tank cover, a hydrogen inlet integrally formed on the right side of the rear end of the tank cover, a rotating shaft rotatably installed in the center of the inner part of the tank cover, blades fixed on the outer wall of the rotating shaft, and an air outlet integrally formed at the lower end of the tank body.

[0008] The orifice plate component is arranged on the main body component and is used for three-stage mixing.

[0009] The reinforcement component is arranged on the main body component and is used to support the orifice plate component.

[0010] Preferably, the main body component further includes an annular frame installed at the lower end of the inner part of the tank cover, and a cross support integrally formed inside the annular frame.

[0011] Preferably, the main body component further includes a lower ring seat fixed to the lower end of the inner wall of the tank body, and an upper ring seat fixed to the lower end of the inner wall of the tank cover.

[0012] Preferably, the orifice plate component includes a middle orifice plate installed inside the tank body, an upper orifice plate and a lower orifice plate respectively fixed to the upper and lower ends of the middle orifice plate, and a plurality of air holes opened on the upper orifice plate, the middle orifice plate and the lower orifice plate.

[0013] Preferably, the reinforcement component includes frames symmetrically installed on both sides inside the tank body, support frames fixed between the upper and lower ends inside the frames, and installation holes opened at both ends inside the frames.

[0014] Preferably, the mixer further includes a first one-way valve installed on the gas inlet, and a second one-way valve installed on the hydrogen inlet.

[0015] Beneficial effects

[0016] The utility model provides a calorific value balance device for mixing hydrogen and gas. Compared with the prior art, it has the following beneficial effects:

[0017] (1) Gas and hydrogen enter the inner part of the tank cover through the gas inlet and the hydrogen inlet respectively. By adopting the tangential air inlet mode, the gas forms a rotational flow, thus promoting mixing. At the same time, the gas drives the blades to rotate around the rotating shaft, which can quickly disperse and mix hydrogen and gas evenly, achieving an efficient mixing effect with lower energy consumption. When the gas enters the inner part of the tank body, it is physically mixed through the orifice plate component, and during the mixing process, the orifice plate component also helps to stabilize the pressure inside the tank body, avoiding affecting the mixing effect and use safety due to pressure fluctuations.

[0018] (2) By installing the reinforcement components on both sides on the orifice plate component, making the upper and lower ends of the frame contact the upper orifice plate and the lower orifice plate respectively, and then fixing the two sides of the reinforcement components through the installation holes with bolts, the support and reinforcement of the orifice plate component are realized through the reinforcement components, avoiding the easy deformation of the orifice plate component due to force when it is installed inside the mixer. Brief Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 It is a sectional structural schematic diagram of the present utility model;

[0021] Figure 3 It is a structural schematic diagram inside the tank cover of the present utility model;

[0022] Figure 4 It is a split structural schematic diagram of the orifice plate component and the reinforcement component of the present utility model.

[0023] In the figure: 1, mixer; 11, main body component; 111, tank body; 112, tank cover; 113, gas inlet; 114, hydrogen inlet; 115, rotating shaft; 116, blade; 117, ring frame; 118, cross support; 119, lower ring seat; 1110, upper ring seat; 1111, outlet; 12, orifice plate component; 121, upper orifice plate; 122, middle orifice plate; 123, lower orifice plate; 124, air hole; 13, reinforcement component; 131, frame; 132, support frame; 133, installation hole; 14, first one-way valve; 15, second one-way valve. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4 , the present utility model provides a technical solution for a calorific value balance device for hydrogen and gas mixing: a calorific value balance device for hydrogen and gas mixing, including a mixer 1 for mixing hydrogen and gas, and the mixer 1 includes:

[0026] The main body component 11 includes a tank cover 112 installed at the upper end of the tank body 111, a gas inlet 113 integrally formed on the left side of the front end of the tank cover 112, a hydrogen inlet 114 integrally formed on the right side of the rear end of the tank cover 112, a rotating shaft 115 rotatably installed in the center of the inside of the tank cover 112, blades 116 fixed to the outer wall of the rotating shaft 115, and an air outlet 1111 integrally formed at the lower end of the tank body 111;

[0027] The orifice plate component 12 is arranged on the main body component 11 and is used for three-stage mixing;

[0028] The reinforcement component 13 is arranged on the main body component 11 and is used for supporting the orifice plate component 12.

[0029] In this embodiment, gas and hydrogen enter the inside of the tank cover 112 through the gas inlet 113 and the hydrogen inlet 114 respectively. By adopting the tangential air inlet method, the gas forms a swirling flow, thereby promoting mixing; at the same time, the gas drives the blades 116 to rotate around the rotating shaft 115, which can quickly disperse and mix the hydrogen and gas evenly, achieving an efficient mixing effect with low energy consumption.

[0030] Specifically, the main body component 11 further includes an annular frame 117 installed at the lower end inside the tank cover 112, and a cross bracket 118 integrally formed inside the annular frame 117.

[0031] In this embodiment, after the tank body 111 and the tank cover 112 are installed and fixed, the lower end of the rotating shaft 115 can be limited by the annular frame 117 in cooperation with the cross bracket 118, and at the same time, the upper end of the orifice plate component 12 can be positioned.

[0032] Specifically, the main body component 11 further includes a lower ring seat 119 fixed to the inner wall of the lower end of the tank body 111, and an upper ring seat 1110 fixed to the inner wall of the lower end of the tank cover 112.

[0033] In this embodiment, when the orifice plate component 12 is installed inside the tank body 111 and the tank body 111 and the tank cover 112 are installed and fixed, the tank body 111 cooperates with the lower ring seat 119 and the tank cover 112 cooperates with the upper ring seat 1110 to fix the orifice plate component 12 together; when the tank body 111 and the tank cover 112 are disassembled, the orifice plate component 12 and the reinforcement component 13 can be taken out for cleaning and maintenance.

[0034] Specifically, the orifice plate component 12 includes a middle orifice plate 122 installed inside the tank body 111, an upper orifice plate 121 and a lower orifice plate 123 respectively fixed to the upper and lower ends of the middle orifice plate 122, and a plurality of air holes 124 opened on the upper orifice plate 121, the middle orifice plate 122 and the lower orifice plate 123.

[0035] In this embodiment, after the gas enters the interior of the tank body 111, it is physically mixed through the orifice plate assembly 12. And during the mixing process, the orifice plate assembly 12 also helps to stabilize the pressure inside the tank body 111, avoiding affecting the mixing effect and use safety due to pressure fluctuations.

[0036] Specifically, the reinforcement assembly 13 includes frames 131 symmetrically installed on both sides inside the tank body 111, support frames 132 fixed between the upper and lower ends inside the frames 131, and mounting holes 133 opened at both ends inside the frames 131.

[0037] In this embodiment, by installing the reinforcement assemblies 13 on both sides on the orifice plate assembly 12, the upper and lower ends of the frame 131 are respectively in contact with the upper orifice plate 121 and the lower orifice plate 123. Then, the two reinforcement assemblies 13 are fixed through the mounting holes 133 with bolts, so as to realize the support and reinforcement of the orifice plate assembly 12 through the reinforcement assembly 13, avoiding the orifice plate assembly 12 being easily deformed by force when installed inside the mixer 1.

[0038] Specifically, the mixer 1 further includes a first one-way valve 14 installed on the gas inlet 113 and a second one-way valve 15 installed on the hydrogen inlet 114.

[0039] In this embodiment, by respectively installing the first one-way valve 14 and the second one-way valve 15 on the gas inlet 113 and the hydrogen inlet 114, the gas can only flow in a single direction during intake, preventing gas backflow.

[0040] The working principle and usage process of the present utility model: First, gas and hydrogen respectively enter the interior of the tank cover 112 through the gas inlet 113 and the hydrogen inlet 114. By adopting the tangential intake method, the gas forms a swirling flow, thus promoting mixing. At the same time, the gas drives the blades 116 to rotate around the rotating shaft 115, which can quickly disperse and mix the hydrogen and gas evenly, achieving an efficient mixing effect with lower energy consumption.

[0041] Then, after the gas enters the interior of the tank body 111, it is physically mixed through the orifice plate assembly 12. And during the mixing process, the orifice plate assembly 12 also helps to stabilize the pressure inside the tank body 111, avoiding affecting the mixing effect and use safety due to pressure fluctuations. Finally, the mixed gas is discharged from the air outlet 1111.

[0042] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A calorific value balance device for mixing hydrogen and fuel gas, characterized in that: The invention comprises a mixer (1) and is used for mixing hydrogen and fuel gas. The mixer (1) comprises: The main body component (11) comprises a tank cover (112) mounted on the upper end of the tank body (111), a fuel gas inlet (113) integrally formed on the left side of the front end of the tank cover (112), a hydrogen gas inlet (114) integrally formed on the right side of the rear end of the tank cover (112), a rotating shaft (115) rotatably mounted in the center of the tank cover (112), blades (116) fixed on the outer wall of the rotating shaft (115), and a gas outlet (1111) integrally formed on the lower end of the tank body (111); An orifice plate assembly (12), arranged on the main assembly (11) and used for three-stage mixing; The reinforcement component (13) is arranged on the main component (11) and is used to support the orifice plate component (12).

2. A calorific value balance device for mixing hydrogen and fuel gas according to claim 1, characterized in that: The main body component (11) further comprises a ring frame (117) mounted at the lower end of the interior of the tank cover (112), and a cross bracket (118) integrally formed inside the ring frame (117).

3. The calorific value balance device for mixing hydrogen and fuel gas according to claim 1, characterized in that: The main body assembly (11) further comprises a lower ring seat (119) fixed to the lower end of the inner wall of the tank body (111), and an upper ring seat (1110) fixed to the lower end of the inner wall of the tank cover (112).

4. A calorific value balance device for mixing hydrogen and fuel gas according to claim 1, characterized in that: The orifice plate assembly (12) comprises a middle orifice plate (122) installed inside the tank body (111), an upper orifice plate (121) and a lower orifice plate (123) respectively fixed at the upper and lower ends of the middle orifice plate (122), and a plurality of air holes (124) formed on the upper orifice plate (121), the middle orifice plate (122) and the lower orifice plate (123).

5. The calorific value balance device for mixing hydrogen and fuel gas according to claim 1, characterized in that: The reinforcement assembly (13) comprises frames (131) installed symmetrically on both sides of the tank body (111), a support frame (132) fixed between the upper and lower ends of the frame (131), and mounting holes (133) opened inside both ends of the frame (131).

6. The calorific value balance device for mixing hydrogen and fuel gas according to claim 1, characterized in that: The mixer (1) further comprises a first one-way valve (14) installed on the fuel gas inlet (113) and a second one-way valve (15) installed on the hydrogen gas inlet (114).

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