A device for spraying a mixture of hydrogen and oxygen and BDO tar

Abstract

The present invention discloses a hydrogen-oxygen and BDO tar mixed spraying device, comprising a hydrogen-oxygen nozzle at a central position, an atomized BDO tar nozzle and a hydrogen-oxygen nozzle at an outer position, wherein the hydrogen-oxygen nozzle at the central position, the atomized BDO tar nozzle and the hydrogen-oxygen nozzle at the outer position are integrally formed in the form of a concentric sleeve. The hydrogen-oxygen and BDO tar mixed spraying device of the present invention sprays hydrogen-oxygen at the center and the periphery of the fuel through a concentric sleeve to mix the fuel with the hydrogen-oxygen, and can utilize the combustion characteristics of hydrogen-oxygen to improve the ignition performance of fuels such as BDO tar and heavy oil, increase the burnout rate, fully burn with combustion-supporting air, improve heat utilization, and reduce pollutant emissions.

Description

Technical Field

[0001] The invention relates to the technical field of industrial heating burners, in particular to a device for spraying a mixture of hydrogen and oxygen and BDO tar. Background Art

[0002] BDO tar is a fuel with alcohol as the main substance, which exists in liquid or solid form. BDO tar has obvious economic comparability with light oil, heavy oil, natural gas and liquefied gas at the same calorific value. The advantages of BDO tar fuel have attracted the attention of the industry, but it is technically difficult to use it as a fuel. To form a fuel comparable to diesel and natural gas requires technical research and practice.

[0003] At present, liquid fuel-based burners need to be atomized to form tiny particles and then mixed with oxidants for combustion to achieve the effect of uniform mixing and complete combustion. The liquid fuels used in industrial furnaces mainly include: light oil, heavy oil, water-coal slurry, etc. There are also examples of using low-viscosity alcohol oil as liquid fuel. In the prior art, oil pressure self-atomization is generally used for light oil, and compressed air or steam atomization is generally used for heavy oil. After mixing with combustion-supporting air, it enters the furnace for combustion to meet the heating requirements. Due to the limitations of fuel conditions, the smoke emissions generated during combustion do not meet the current emission standards for industrial furnaces. Therefore, when renovating or building new industrial furnaces, liquid fuels are rarely considered. For example, heavy oil and BDO tar with high calorific value and low price are rarely effectively used. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a hydrogen-oxygen and BDO tar mixed spraying device, which can utilize the combustion characteristics of hydrogen-oxygen to improve the ignition performance of fuels such as BDO tar and heavy oil, improve the burnout rate, and enable BDO tar to replace light oil, natural gas, liquefied gas and other fuels, thereby reducing fuel costs. The water vapor after the combustion of hydrogen-oxygen can catalyze carbon particles, reduce carbon black in flue gas, reduce pollutant emissions, and alleviate environmental pressure.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a hydrogen-oxygen and BDO tar mixing and spraying device, comprising a hydrogen-oxygen nozzle at a central position, an atomized BDO tar nozzle and an hydrogen-oxygen nozzle at an outer position, wherein the hydrogen-oxygen nozzle at the central position, the atomized BDO tar nozzle and the hydrogen-oxygen nozzle at the outer position are formed as a whole in the form of concentric sleeves.

[0006] In a preferred embodiment of the present invention, the hydrogen-oxygen nozzle at the center, the atomized BDO tar nozzle and the hydrogen-oxygen nozzle at the outer position are sequentially nested, the hydrogen-oxygen nozzle at the center is located at the central axis, and the hydrogen-oxygen nozzle at the outer position is located at the outermost side.

[0007] In a preferred embodiment of the present invention, the nozzle of the hydrogen and oxygen nozzle at the central position, the nozzle of the hydrogen and oxygen nozzle at the outer position and the nozzle of the atomized BDO tar nozzle are located at the same end, and the positional relationship of the injection routes of the three nozzles is set to be parallel or cross-relationship.

[0008] In a preferred embodiment of the present invention, the nozzle of the hydrogen and oxygen gas nozzle at the center is a single-hole or multi-hole structure.

[0009] In a preferred embodiment of the present invention, the atomized BDO tar nozzle is a compressed air atomized BDO tar nozzle or a steam atomized BDO tar nozzle.

[0010] In a preferred embodiment of the present invention, the atomized BDO tar nozzle is an internal mixing atomization spraying structure or an external mixing atomization spraying structure.

[0011] In a preferred embodiment of the present invention, the atomized BDO tar nozzle is an internal mixing atomization spraying structure, including a BDO tar channel, an atomizing gas compressed air channel and an atomizing mixing chamber, wherein the BDO tar channel and the atomizing gas compressed air channel are respectively connected to the atomizing mixing chamber, and the atomizing mixing chamber is connected to the nozzle.

[0012] In a preferred embodiment of the present invention, the hydrogen and oxygen nozzle at the center is an integrated structure with the atomized BDO tar nozzle, which is compressed by a compression sleeve and moved forward and backward by an adjustment device.

[0013] In a preferred embodiment of the present invention, the adjusting device includes left and right threaded joints, one end of which is connected to the integral structure of the hydrogen and oxygen nozzle at the central position and the atomized BDO tar nozzle, and the other end of which is connected to the compression sleeve.

[0014] In a preferred embodiment of the present invention, the hydrogen and oxygen gas channel at the central position and the hydrogen and oxygen gas channel at the outer position are independently separated from other medium channels.

[0015] The beneficial effects of the present invention are as follows: the hydrogen-oxygen and BDO tar mixing ejection device of the present invention ejects hydrogen-oxygen through concentric sleeves at the center and periphery of the fuel to mix the fuel with hydrogen-oxygen, and can utilize the combustion characteristics of hydrogen-oxygen to improve the ignition performance of fuels such as BDO tar and heavy oil, increase the burnout rate, fully burn with combustion-supporting air, improve heat utilization, and reduce pollutant emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of a preferred embodiment of a device for spraying a mixture of hydrogen and oxygen and BDO tar according to the present invention;

[0017] Figure 2 yes Figure 1 The internal structure diagram of the hydrogen and oxygen gas and BDO tar mixing and ejecting device shown;

[0018] Figure 3 yes Figure 2 Detailed labeled diagram of the internal structure.

[0019] The markings of the components in the accompanying drawings are as follows:

[0020] 1. Oxyhydrogen nozzle in the center; 2. Atomized BDO tar nozzle; 3. Mobile adjustment device; 4. Oxyhydrogen nozzle in the outer position;

[0021] The internal components in the drawings are marked as follows:

[0022] 1-1 Central hydrogen and oxygen interface;

[0023] 1-2 Central hydrogen and oxygen channel;

[0024] 1-3 Central hydrogen and oxygen nozzle;

[0025] 2-1 BDO tar interface;

[0026] 2-2 Compressed air interface;

[0027] 2-3 BDO tar channel;

[0028] 2-4 atomizing gas channel;

[0029] 2-5 BDO tar vents;

[0030] 2-6 atomizing gas nozzle;

[0031] 2-7 Atomizing gas sealing groove;

[0032] 2-8 Emulsification mixing chamber;

[0033] 2-9 emulsified mixed liquid spray hole;

[0034] 3-1 Sealing ring;

[0035] 3-2 Compression sleeve;

[0036] 3-3 Left and right threaded joints;

[0037] 3-4 guide rod;

[0038] 4-1 External hydrogen and oxygen interface;

[0039] 4-2 Outer hydrogen and oxygen channel;

[0040] 4-3 Outer hydrogen and oxygen spray holes. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0042] See also Figure 1 , Figure 2 and Figure 3 : The embodiment of the present invention includes:

[0043] A device for spraying a mixture of hydrogen and oxygen and BDO tar, comprising: a hydrogen and oxygen nozzle 1 at a central position, an atomized BDO tar nozzle 2, a movable adjustment device 3 and a hydrogen and oxygen nozzle 4 at an outer position; the hydrogen and oxygen nozzle 1 at the central position, the atomized BDO tar nozzle 2 and the hydrogen and oxygen nozzle at the outer position are integrally formed in the form of a concentric sleeve. The hydrogen and oxygen nozzle 1 at the central position described in this embodiment is arranged at the coaxial center of the hydrogen and oxygen and BDO tar mixed spraying device, passing through the atomized BDO tar nozzle 2. The movable adjustment device 3 can move the hydrogen and oxygen nozzle 1 at the central position and the compressed air atomized BDO tar nozzle 2 forward and backward by rotating the left and right threaded joints 3-1.

[0044] The oxygen-hydrogen nozzle 1 at the central position includes a central oxygen-hydrogen interface 1-1, a central oxygen-hydrogen channel 1-2 and a central oxygen-hydrogen spray hole 1-3. The central oxygen-hydrogen interface 1-1, the central oxygen-hydrogen channel 1-2 and the central oxygen-hydrogen spray hole 1-3 form a closed channel. The central oxygen-hydrogen channel 1-2 passes through the BDO tar nozzle 2 atomized by compressed air, and the central oxygen-hydrogen spray hole 1-3 sprays oxygen-hydrogen. In this embodiment, the central oxygen-hydrogen spray hole 1-3 is made into a single hole.

[0045] In this embodiment, the atomized BDO tar nozzle 2 is a compressed air atomized BDO tar nozzle 2, including a BDO tar interface 2-1, a BDO tar channel 2-3, a BDO tar nozzle 2-5, a compressed air interface 2-2, a compressed air channel 2-4, a compressed air nozzle 2-6, an atomizing gas sealing groove 2-7, an emulsified mixing chamber 2-8 and an emulsified mixed liquid spray hole 2-9. The BDO tar interface 2-1, the BDO tar channel 2-3 and the BDO tar nozzle 2-5 form a BDO tar channel, and the BDO tar nozzle 2-5 is connected to the emulsified mixing chamber 2-8. The compressed air interface 2-2, the compressed air channel 2-4 and the compressed air nozzle 2-6 form a compressed air channel, and the compressed air nozzle 2-6 is connected to the emulsified mixing chamber 2-8. The specific process is as follows: BDO tar enters the emulsified mixing chamber 2-8 through the BDO tar interface 2-1, the BDO tar channel 2-3 and the BDO tar nozzle 2-5; at the same time, compressed air enters the emulsified mixing chamber 2-8 through the compressed air interface 2-2, the compressed air channel 2-4 and the compressed air nozzle 2-6, and the front end of the compressed air channel is formed by the atomized gas sealing groove 2-7 to form a sealed labyrinth. The BDO tar and the compressed air form an emulsified mixed liquid in the emulsified mixing chamber 2-8, and finally spray out from the emulsified mixed liquid spray hole 2-9. Optionally, the emulsified mixed liquid spray hole 2-9 is made into a coaxial expansion angle equally divided hole. The atomized BDO tar nozzle 2 of the internal mixing atomization spraying structure is shown in this embodiment. The atomized BDO tar nozzle 2 can also adopt an external mixing atomization spraying structure. This structure is relatively simple and will not be illustrated one by one. Similarly, the atomized BDO tar nozzle 2 can be a compressed air atomized BDO tar nozzle or a steam atomized BDO tar nozzle.

[0046] The hydrogen and oxygen nozzle 4 at the outer position includes an outer hydrogen and oxygen interface 4-1, an outer hydrogen and oxygen channel 4-2 and an outer hydrogen and oxygen spray hole 4-3. The outer hydrogen and oxygen interface 4-1 and the outer hydrogen and oxygen channel 4-2 form a closed channel, and the hydrogen and oxygen are sprayed out through the outer hydrogen and oxygen spray hole 4-3. Optionally, the outer hydrogen and oxygen spray hole 4-3 is made into a coaxial contraction angle equally divided hole to form a coaxial intersection angle with the emulsified mixed liquid spray hole 2-9.

[0047] Combination Figure 1As shown, the hydrogen-oxygen and BDO tar mixed spraying device of this embodiment is a cylindrical structure as a whole, the nozzle of the hydrogen-oxygen nozzle at the center position (central hydrogen-oxygen spray hole 1-3), the nozzle of the hydrogen-oxygen nozzle at the outer position (outer hydrogen-oxygen spray hole 4-3) and the nozzle of the atomized BDO tar nozzle (emulsified mixed liquid spray hole 2-9) are located at the front end, and the rear end has a central hydrogen-oxygen interface 1-1, a BDO tar interface 2-1, a compressed air interface 2-2 and an outer hydrogen-oxygen interface 4-1. In this embodiment, the central hydrogen-oxygen interface 1-1 is located at the rear end surface, and the BDO tar interface 2-1, the compressed air interface 2-2 and the outer hydrogen-oxygen interface 4-1 are located on the side in sequence. The said movement adjustment device 3 is provided between the said compressed air interface 2-2 and the said outer hydrogen-oxygen interface 4-1.

[0048] Combination Figure 2 and Figure 3 As shown, the movement adjustment device 3 includes a sealing ring 3-1, a compression sleeve 3-2, a left and right threaded joint 3-3 and a guide rod 3-4. The compression sleeve 3-2 is sleeved outside the atomized BDO tar nozzle 2. The sealing ring 3-1 cooperates with the hydrogen and oxygen nozzle 4 at the outer position and the compression sleeve 3-2 for sealing, one end of the left and right threaded joint 3-3 is connected to the compression sleeve 3-2, the other end of the left and right threaded joint 3-3 is connected to the atomized BDO tar nozzle 2, one end of the guide rod 3-4 is connected to the compressed air atomized BDO tar nozzle 2, and the other end of the guide rod 3-4 is connected to the hydrogen and oxygen nozzle 4 at the outer position. When adjusting, the left and right threaded joints 3-3 can be rotated to retract or extend the distance between the compressed air atomized BDO tar nozzle 2 and the hydrogen and oxygen nozzle 4 at the outer position.

[0049] The hydrogen and oxygen gas mixed spraying device of the present invention can make hydrogen and oxygen gas mixed with fuels such as BDO tar and heavy oil and spray them in stages, and then mix them with external combustion-supporting air to form a burner. The device is easy to install, simple in structure, and safe and reliable in combustion. Through the above method, the characteristics of hydrogen and oxygen gas can be used to improve the ignition performance of fuels such as BDO tar and heavy oil, and improve the burnout rate. Fuels with high calorific value and low price such as BDO tar and heavy oil are fully utilized, saving fuel costs. The water vapor after the hydrogen and oxygen gas is burned can catalyze carbon particles, reduce carbon black in flue gas, reduce pollutant emissions, and alleviate environmental pressure.

[0050] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0051] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for spraying a mixture of hydrogen and oxygen and BDO tar, characterized in that: It includes a hydrogen-oxygen nozzle at a central position, an atomized BDO tar nozzle and an hydrogen-oxygen nozzle at an outer position, wherein the hydrogen-oxygen nozzle at the central position, the atomized BDO tar nozzle and the hydrogen-oxygen nozzle at the outer position are formed into a whole in the form of a concentric sleeve; The oxygen-hydrogen nozzle at the center is an integrated structure with the atomized BDO tar nozzle, which is compressed by a compression sleeve and moved forward and backward by an adjusting device.

2. The device for spraying a mixture of hydrogen and oxygen and BDO tar according to claim 1, characterized in that: The hydrogen and oxygen nozzle at the center, the atomized BDO tar nozzle and the hydrogen and oxygen nozzle at the outer position are sequentially nested. The hydrogen and oxygen nozzle at the center is located at the central axis, and the hydrogen and oxygen nozzle at the outer position is located at the outermost side.

3. The device for spraying a mixture of hydrogen and oxygen and BDO tar according to claim 1, characterized in that: The nozzle of the hydrogen and oxygen nozzle at the center, the nozzle of the hydrogen and oxygen nozzle at the outer position and the nozzle of the atomized BDO tar nozzle are located at the same end, and the injection route position relationship of the three nozzles is set to be parallel or cross relationship.

4. The device for spraying a mixture of hydrogen and oxygen and BDO tar according to claim 1, characterized in that: The nozzle of the oxygen / hydrogen nozzle at the center is a single-hole or multi-hole structure.

5. The device for spraying out a mixture of hydrogen and oxygen and BDO tar according to claim 1, characterized in that: The atomized BDO tar nozzle is a compressed air atomized BDO tar nozzle or a steam atomized BDO tar nozzle.

6. The device for spraying out a mixture of hydrogen and oxygen and BDO tar according to claim 1, characterized in that: The atomized BDO tar nozzle is an internal mixing atomization spraying structure or an external mixing atomization spraying structure.

7. The device for spraying a mixture of hydrogen and oxygen and BDO tar according to claim 6, characterized in that: The atomized BDO tar nozzle is an internal mixing atomization spraying structure, including a BDO tar channel, an atomizing gas compressed air channel and an atomizing mixing chamber, wherein the BDO tar channel and the atomizing gas compressed air channel are respectively connected to the atomizing mixing chamber, and the atomizing mixing chamber is connected to the nozzle.

8. The device for spraying a mixture of hydrogen and oxygen and BDO tar according to claim 1, characterized in that: The adjusting device comprises left and right threaded joints, one end of which is connected to the integral structure of the hydrogen and oxygen nozzle at the central position and the atomized BDO tar nozzle, and the other end of which is connected to the compression sleeve.

9. The device for spraying out a mixture of hydrogen and oxygen and BDO tar according to claim 1, characterized in that: The hydrogen and oxygen gas channels at the center and the hydrogen and oxygen gas channels at the outer positions are independently separated from other medium channels.

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