Air atomization waste oil incineration oil gun

Abstract

The invention discloses an air atomization waste oil incineration oil gun in the technical field of air atomization waste oil incineration, which comprises an incineration oil gun main body, the incineration oil gun main body is provided with an outer pipe body and an inner oil pipe, the outlet end of the inner oil pipe is connected with an oil nozzle, and the outlet end of the outer pipe body is connected with a butt joint pipe fitting for draining air and oil. The outlet end of the butt joint pipe fitting is fixedly connected with a mixed gas spray head, the inside and the outside of an outlet of the mixed gas spray head are narrowed towards the center, a mixing mechanism facilitating oil-gas mixing is arranged in an inner cavity of the mixed gas spray head, and a diffuser fixedly connected with the mixing mechanism is inserted into the outlet end of the mixed gas spray head; according to the invention, waste oil (main component C3C4C5) containing particulate matter impurities and produced by propane dehydrogenation is premixed with air and then sprayed out at a certain angle through the diffuser, so that the oil nozzle can be prevented from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of air atomization waste oil incineration, in particular to an air atomization waste oil incineration oil gun. Background Art

[0002] Waste oil incineration oil gun is a device used to incinerate waste oil. It uses the oil gun to atomize the waste oil and then burn it to achieve energy reuse and environmental protection. Waste oil incineration oil guns are widely used and can be used to treat various liquid fuels, including diesel, heavy oil, residual oil, orimulsion, crude oil, camphor oil, waste oil, waste liquid, waste engine oil, coal tar, etc.

[0003] Problems with existing oil guns:

[0004] 1. Since waste oil contains propane dehydrogenation catalyst powder and tar, the oil nozzle is often clogged. Each oil gun must be dismantled and cleaned after running for about half a month.

[0005] 2. No atomization. The oil sprayed out from the nozzle often contains particles, which is more obvious when the oil pressure is lower than 0.5MPa(G).

[0006] 3. Black smoke is emitted, the burner and furnace wall are blackened and charred, and the burner fire detection signal is affected.

[0007] Based on this, the present invention designs an air atomization waste oil incineration oil gun to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to provide an air atomizing waste oil incineration oil gun to solve the problems of the existing oil guns mentioned in the above background technology: 1. Since the waste oil contains propane dehydrogenation catalyst powder and tar, the oil nozzle is often blocked, and each oil gun must be dismantled and cleaned after running for about half a month. 2. No atomization. The oil sprayed out from the oil nozzle often contains particles, which is more obvious when the oil pressure is lower than 0.5MPa(G). 3. Black smoke is emitted, the burner and furnace wall are blackened and coked, and the burner fire detection signal is affected.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air atomizing waste oil incineration oil gun, comprising an incineration oil gun main body, an outer tube body and an inner oil tube being arranged on the incineration oil gun main body, an oil nozzle being connected to the outlet end of the inner oil tube, a butt joint fitting for draining air and oil being connected to the outlet end of the outer tube body, a mixed gas nozzle being fixedly connected to the outlet end of the butt joint fitting, the outlet end of the mixed gas nozzle being narrowed toward the center both inside and outside the outlet of the mixed gas nozzle, an inner cavity of the mixed gas nozzle being arranged with a mixing mechanism which is beneficial to oil and gas mixing, and a diffuser fixedly connected to the mixing mechanism being inserted into the outlet end of the mixed gas nozzle.

[0010] Preferably, the oil nozzle comprises an oil nozzle tube, and an oil nozzle opening which is narrowed inwardly both inside and outside is provided at the outlet of the oil nozzle tube.

[0011] Preferably, the butt joint fitting includes a pipe body sealedly connected to an outer pipe body, a center hole screwed to an oil nozzle is provided at the center of the pipe body, ventilation holes are arranged in a circle outside the center hole and are provided on the pipe body, the outlet ends of the center hole and the ventilation holes are connected in the inner cavity of the pipe body, and an internal hollow connector is provided at the right end of the pipe body.

[0012] Preferably, the mixing mechanism comprises a circular ring block, a cylinder is sleeved and fixed on the outer side of the circular ring block, and mixing ports are evenly arranged in the inner cavity of the cylinder.

[0013] Preferably, the diffuser comprises a connecting rod threadedly connected to the center hole of the circular ring block, and a diffusion head with a conical surface extending toward the right outside is fixedly connected to the right end of the connecting rod.

[0014] Preferably, the left end portion of the diffuser is threadedly connected with a positioning nut located on the left side of the circular ring block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the waste oil (mainly composed of C3\C4\C5) containing particulate impurities produced by propane dehydrogenation is premixed with air and then sprayed out at a certain angle through a diffuser, thereby avoiding blockage of the oil nozzle; the insufficient air in the present invention is supplemented by hot air from an external burner bellows, so that the combustion state neither emits black smoke nor fails to burn fully, thereby avoiding excessive nitrogen oxides generated by excessively high flame center temperature.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the butt-joint pipe fitting of the present invention;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the butt-joint pipe fitting of the present invention;

[0021] Figure 4 This is a schematic diagram of the oil nozzle structure of the present invention;

[0022] Figure 5It is a schematic diagram of the structure of the mixing mechanism of the present invention;

[0023] Figure 6 It is a schematic diagram of the diffuser structure of the present invention.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1-incineration oil gun body, 2-oil nozzle, 21-nozzle tube, 22-oil nozzle port, 3-butt fitting, 31-fitting body, 32-center hole, 33-ventilation hole, 34-connector, 4-mixed gas nozzle, 5-mixing mechanism, 51-circular ring block, 52-cylinder, 53-mixing port, 6-diffuser, 61-connecting rod, 62-diffuser head, 7-positioning nut. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-6 The present invention provides a technical solution for an air-atomized waste oil burning oil gun: an air-atomized waste oil burning oil gun, comprising a burning oil gun body 1, an outer tube body and an inner oil pipe are arranged on the burning oil gun body 1, an oil nozzle 2 is connected to the outlet end of the inner oil pipe, a butt joint fitting 3 for guiding air and oil is connected to the outlet end of the outer tube body, a mixed gas nozzle 4 is fixedly connected to the outlet end of the butt joint fitting 3, the outlet of the mixed gas nozzle 4 is narrowed toward the center both inside and outside, the inner cavity of the mixed gas nozzle 4 is provided with a mixing mechanism 5 that is conducive to oil and gas mixing, and a diffuser 6 fixedly connected to the mixing mechanism 5 is inserted into the outlet end of the mixed gas nozzle 4; air is introduced from the outside of the inner oil pipe, which has two functions: one is to atomize the waste oil. The other is to cool the inner oil pipe, and it can also prevent the waste oil from agglomerating in the oil gun and clogging the oil nozzle.

[0028] Furthermore, the oil nozzle 2 includes an oil nozzle tube 21, and an oil nozzle opening 22 that is narrowed inwardly both inside and outside is provided at the outlet of the oil nozzle tube 21. No cyclone is added in the oil nozzle 2, so that the waste oil channel is more unobstructed, and at the same time the length of the oil nozzle nozzle is increased to prevent backfire.

[0029] Furthermore, the butt joint fitting 3 includes a pipe fitting body 31 sealed with the outer pipe body, a center hole 32 screwed to the oil nozzle 2 is provided at the center of the pipe fitting body 31, ventilation holes 33 are arranged in a circle on the outer side of the center hole 32, the outlet ends of the center hole 32 and the ventilation holes 33 are connected in the inner cavity of the pipe fitting body 31, and an internal hollow connector 34 is provided at the right end of the pipe fitting body 31.

[0030] Furthermore, the mixing mechanism 5 includes a circular ring block 51, a cylinder 52 is sleeved and fixed on the outer side of the circular ring block 51, and mixing ports 53 are evenly opened in the inner cavity of the cylinder 52. The mixing mechanism 5 is added after the oil nozzle, and the air and the waste oil are premixed evenly in advance.

[0031] Furthermore, the diffuser 6 includes a connecting rod 61 screwed to the center hole of the annular block 51, and the right end of the connecting rod 61 is fixedly connected to a diffusion head 62 with a conical surface extending to the right outside. An adjustable diffuser is added to the gun head, and the flame length can be adjusted as needed to avoid scouring the boiler water-cooled wall tubes.

[0032] Furthermore, a positioning nut 7 located on the left side of the annular block 51 is screwed to the left end of the diffuser 6 .

[0033] A specific application of this embodiment is: this air atomization waste oil incineration oil gun is used in conjunction with a gas boiler burner. Its principle is to premix the waste oil containing particulate impurities produced by propane dehydrogenation (main components C3\C4\C5) with air and then spray it out at a certain angle through an adjustable diffuser, and burn it after encountering the central flame of the burner; the insufficient air is supplemented by the hot air from the burner bellows, so that its combustion state neither emits black smoke nor burns fully (meets the ember wind at the top of the furnace and burns again), avoiding excessive temperature in the center of the flame and generating excessive nitrogen oxides. The flame length must be controlled to be less than 5 meters so as not to flush the boiler water-cooled wall. The center temperature of the flame should be controlled to be less than 1000°C, and the flame color should be light red;

[0034] The following are the safe operating procedures for this air atomization waste oil incineration oil gun:

[0035] 1. The oil gun can only be put into operation after the burner is put into operation.

[0036] 2. When the oil gun is normally put into use, open the compressed air first, then open the fuel valve. Someone must be on site to operate and observe the flame situation so that timely adjustments can be made.

[0037] 3. When stopping the fuel gun, first close the fuel quick-close valve and then close the compressed air valve. Then replace the fuel pipeline with nitrogen for more than 3 minutes. Then close the manual fuel valve.

[0038] 4. Normal fuel pressure should be 0.5MPa(G) and compressed air pressure should be 0.7MPa(G).

[0039] 5. When the boiler is in automatic or manual MFT, the main fuel valve must be closed at the same time.

[0040] 6. A check valve or other measures should be installed behind the fuel quick-closing valve and the compressed air branch pipe to prevent cross-flow.

[0041] 7. When the oil gun is not in use, always allow compressed air to cool it.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An air atomization waste oil incineration oil gun, characterized by: The invention comprises an incineration oil gun body (1), wherein the incineration oil gun body (1) is provided with an outer tube body and an inner oil tube, the outlet end of the inner oil tube is connected to an oil nozzle (2), the outlet end of the outer tube body is connected to a butt joint pipe (3) for guiding air and oil, the outlet end of the butt joint pipe (3) is fixedly connected to a mixed gas nozzle (4), the outlet of the mixed gas nozzle (4) is narrowed toward the center both inside and outside, the inner cavity of the mixed gas nozzle (4) is provided with a mixing mechanism (5) that is conducive to oil and gas mixing, and the outlet end of the mixed gas nozzle (4) is inserted with a diffuser (6) fixedly connected to the mixing mechanism (5).

2. The air atomization waste oil incineration oil gun according to claim 1, characterized in that: The oil nozzle (2) comprises an oil nozzle tube (21), and an oil nozzle opening (22) which is narrowed inwardly both inside and outside is arranged at the outlet of the oil nozzle tube (21).

3. The air atomization waste oil incineration oil gun according to claim 1, characterized in that: The butt joint pipe fitting (3) comprises a pipe fitting body (31) sealedly connected to an outer pipe body, a center hole (32) threadedly fixed to an oil nozzle (2) is provided at the center of the pipe fitting body (31), ventilation holes (33) are arranged in a row on the outer circumference of the center hole (32) and are opened on the pipe fitting body (31), the outlet ends of the center hole (32) and the ventilation holes (33) are connected in the inner cavity of the pipe fitting body (31), and an internal hollow connector (34) is provided at the right end of the pipe fitting body (31).

4. The air atomization waste oil incineration oil gun according to claim 1, characterized in that: The mixing mechanism (5) comprises a circular ring block (51), a cylinder (52) is sleeved and fixed on the outer side of the circular ring block (51), and the inner cavity of the cylinder (52) is evenly provided with mixing ports (53).

5. The air atomization waste oil incineration oil gun according to claim 4, characterized in that: The diffuser (6) comprises a connecting rod (61) threadedly connected to the center hole of the annular block (51), and a diffusion head (62) with a conical surface extending toward the right outside is fixedly connected to the right end of the connecting rod (61).

6. The air atomization waste oil incineration oil gun according to claim 5, characterized in that: The left end of the diffuser (6) is threadedly connected with a positioning nut (7) located on the left side of the circular ring block (51).

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