Vaporization combustion device
Technical Field
The embodiment of the invention relates to the technical field of combustors, in particular to a vaporization combustion device.
Background
The existing vaporizing burner has the main problems that the fuel is not sufficiently vaporized, the calorific value of combustion is low, energy waste is caused, and meanwhile, the product is polluted and discharged due to insufficient fuel combustion.
Disclosure of Invention
Therefore, the embodiment of the invention provides a vaporization combustion device, which aims to solve the problems of energy waste and pollution emission caused by insufficient vaporization of a vaporization burner in the prior art.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
according to the first aspect of the embodiment of the invention, the vaporization combustion device comprises a liquid supply device, a combustion chamber, a pre-vaporization mechanism, a vaporization device, a first cooking range and a second cooking range, wherein the first cooking range, the vaporization device and the second cooking range are sequentially fixed in the combustion chamber from bottom to top, a preheating vaporization region and a heat supply combustion vaporization region are arranged in the vaporization device, the liquid supply device is connected with the first cooking range through a first combustion pipeline, the first combustion pipeline is connected with the pre-vaporization mechanism, the liquid supply device is communicated with the preheating vaporization region through a second combustion pipeline, the first cooking range is communicated with the preheating vaporization region, the liquid supply device is communicated with the heat supply combustion vaporization region through a third combustion pipeline, and the second cooking range is communicated with the heat supply combustion vaporization region.
Further, the middle part of the vaporizing device is also provided with a combustion heating cavity, the heat supply combustion vaporization area is arranged outside the combustion heating cavity, the preheating vaporization area is arranged outside the heat supply combustion vaporization area in a surrounding mode, and the upper end and the lower end of the combustion heating cavity are arranged in an open mode.
Furthermore, a first combustion air inlet for supplying oxygen to the first cooking range is arranged at the lower part of the combustion chamber, and a second combustion air inlet for supplying oxygen to the second cooking range is arranged at the upper part of the combustion chamber.
Further, the pre-vaporization mechanism is an electric preheater arranged on the first combustion pipeline.
Furthermore, a pipeline at the outlet of the liquid supply device is also connected with a compressed air bin.
Furthermore, a mixed combustion cylinder is arranged on the upper side of the combustion chamber, and a heat collection fire outlet cylinder is arranged on the upper side of the mixed combustion cylinder.
Further, the diameter of the mixed combustion cylinder is gradually increased from top to bottom.
Further, the liquid supply device is a high-pressure pump.
Furthermore, a first valve is arranged on the first combustion pipeline, a second valve is arranged on the second combustion pipeline, and a third valve is arranged on the third combustion pipeline.
Furthermore, a first flowmeter is arranged on the first combustion pipeline, a second flowmeter is arranged on the second combustion pipeline, and a third flowmeter is arranged on the third combustion pipeline.
The embodiment of the invention has the following advantages:
according to the embodiment of the invention, firstly, a liquid fuel is converted into combustible gas through a pre-vaporization mechanism, when the combustible gas is formed, the pressure is increased, the combustible gas passing through a first combustion pipeline ignites a first cooking range, the flame of the first cooking range heats a vaporization device, the fuel in a preheating vaporization region is heated and then returns to the first cooking range for combustion, when the combustion is stable, the first combustion pipeline can be closed, the combustible gas vaporized in the preheating vaporization region is used for combustion, the self vaporization and the self circulation are realized, the combustible gas vaporized in the heating combustion vaporization region is conveyed to a second cooking range for combustion without depending on any external heat source, and the obtained heat value is very high when the combustible gas is combusted through the second cooking range; in addition, the flame of the first cooking range directly burns the second cooking range, so that the second cooking range and the vaporizing device are simultaneously positioned in the flame, in such a case, the vaporized gas fuel is secondarily vaporized through the second cooking range, the purer heat value of the secondarily vaporized gas fuel is higher, the combustion of the second cooking range is more sufficient, and the temperature and the heat are increased.
The burning temperature of first kitchen range is less than the second kitchen range, and is not abundant enough to some combustible substance or pollutant burning, does not have the combustible substance and the pollutant postcombustion of burning to first kitchen range when the second kitchen range, has both accomplished pollution abatement and can increase the temperature of burning, has played combustion-supporting effect again simultaneously, accomplishes low emission or zero emission.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.
Fig. 1 is a schematic view of a vaporization combustion apparatus provided in embodiment 1 of the present invention;
in the figure: 1-high pressure pump 2-total flow meter 3-check valve 4-pressure gauge 5-compressed air bin 6-first flow meter 7-electric preheater 8-second valve 9-first valve 10-second flow meter 11-first cooking stove 12-vaporizing device 13-second cooking stove 14-first combustion pipeline 15-second combustion pipeline 16-third combustion pipeline 17-third flow meter 18-third valve 19-combustion heating cavity 20-preheating vaporizing zone 21-heat supply combustion vaporizing zone 22-mixed combustion cylinder 23-heat collection fire outlet cylinder 24-first combustion air inlet 25-second combustion air inlet 26-combustion chamber.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.
Referring to fig. 1, the vaporizing combustion device comprises a liquid supply device, a pre-vaporizing mechanism, a vaporizing device 12, a first cooking range 11 and a second cooking range 13, wherein the first cooking range 11, the vaporizing device 12 and the second cooking range 13 are arranged in a combustion chamber 26 from bottom to top, the liquid supply device is connected with the first cooking range 11 through a first combustion pipeline 14, the vaporizing device 12 is a shell, a combustion heating cavity 19, a preheating vaporizing region 20 and a heat supply combustion vaporizing region 21 are arranged in the vaporizing device 12, the liquid supply device is connected with the first cooking range 11 through a first combustion pipeline 14, the first combustion pipeline 14 is connected with the pre-vaporizing mechanism, the liquid supply device is communicated with the preheating vaporizing region 20 through a second combustion pipeline 15, the first cooking range 11 is communicated with the preheating vaporizing region 20, the liquid supply device is communicated with the heat supply combustion vaporizing region 21 through a third combustion pipeline 16, and the second cooking range 13 is communicated with the heat supply combustion vaporizing region 21. The heat supply combustion vaporization area 21 is arranged outside the combustion heating cavity 19, the preheating vaporization area 20 is arranged outside the heat supply combustion vaporization area 21 in a surrounding mode, and the upper end and the lower end of the combustion heating cavity 19 are arranged in an opening mode.
The first cooking range 11 is arranged right below the combustion heating cavity 19, the second cooking range 13 is arranged right above the combustion heating cavity 19, and the combustion heating cavity 19, the preheating vaporization area 20 and the heat supply combustion vaporization area 21 are arranged in a mutually sealed mode. The lower part of the combustion chamber 26 is provided with a first combustion air inlet 24 for supplying oxygen to the first cooking range 11, the upper part of the combustion chamber 26 is provided with a second combustion air inlet 25 for supplying oxygen to the second cooking range 13, and the high pressure fan supplies air to the first combustion air inlet 24 and the second combustion air inlet 25. The upper side of the combustion chamber 26 is provided with a mixing combustion cylinder 22, and the upper side of the mixing combustion cylinder 22 is provided with a heat collection fire outlet cylinder 23. The diameter of the hybrid combustor 22 gradually increases from top to bottom.
The liquid supply device is a high-pressure pump 1, a main flow meter 2, a check valve 3 and a pressure gauge 4 are arranged on a main pipeline at the outlet of the high-pressure pump 1, and a compressed air bin 5 is further connected to the main pipeline at the outlet of the high-pressure pump 1. By injecting compressed air into the compressed air chamber 5 and mixing with the dye, the fuel is more easily vaporized and is more pressurized and more fully combusted. The pre-vaporization mechanism is an electric pre-heater 7 arranged on the first combustion pipeline 14, an electric preheating zone is arranged on the first combustion pipeline 14, and the electric pre-heater 7 is arranged in the electric preheating zone. The first combustion pipeline 14 is provided with a first valve 9 and a first flowmeter 6, the second combustion pipeline 15 is provided with a second valve 8 and a second flowmeter 10, and the third combustion pipeline 16 is provided with a third valve 18 and a third flowmeter 17.
The combustion method of the vaporization combustion device comprises the following steps:
the liquid fuel is first delivered to the electric preheating zone by means of the high-pressure pump 1, and the electric preheater 7 is raised to a high temperature by means of the electric heating elements. The liquid fuel is converted into combustible gas after passing through the electric preheating zone. When the pressure increases with the formation of combustible gas and rises to a certain combustible gas pressure, the first valve 9 is opened. The gaseous fuel is delivered to the first cooking range 11 by display and monitoring of the first flow meter 6.
The first cooking range 11 is ignited by combustible gas passing through the first combustion pipeline 14, high temperature is generated by combustion, the high temperature flame enters the combustion heating cavity 19 at the moment and directly burns the vaporizing device 12, the vaporizing cavity of the vaporizing device 12 is divided into two temperature areas, the first temperature area is a preheating vaporizing area 20, and the second temperature area is a heat supply combustion vaporizing area 21.
The liquid fuel in the preheating vaporization region 20 enters through the high-pressure pump 1, the second combustion pipeline 15, the second valve 8 and the second flow meter 10, the liquid fuel before entering is fully mixed with the compressed air in the compressed air bin 5 to achieve the optimal state before vaporization, and the vaporization device 12 is fully combusted through the first cooking range 11 to achieve the temperature required by vaporization. At this time, the second valve 8 is opened to supply the high-calorie gas fuel vaporized in the preheating vaporization region 20 to the first cooking range 11. At the moment, the first cooking range 11 simultaneously burns the mixed fuel of the first combustion pipeline 14 and the second combustion pipeline 15, the combustion condition of the burning flame is observed, when the flame is stably burnt, a valve of the first combustion pipeline 14 is closed, the second combustion pipeline 15 is reserved, at the moment, the combustion device self burns, self vaporizes, self circulates, the electric preheater 7 does not work any more, the temperature can exceed thousands of degrees without depending on any external heat source, the temperature rise of the liquid fuel is driven by the high temperature generated by the self to achieve the purpose of vaporization, and the vaporized combustible body also contains a mixture of hydrogen and oxygen. The hydrogen is combusted through the first cooking range 11, the oxygen is combustion-supporting gas, the content of the self-produced oxygen is low, the flow of the compressed air and the high-pressure fan of the compressed air bin 5 is increased at the moment, the compressed air and the high-pressure fan play a role in supporting combustion and warming, the supercharging effect is also played, the temperature of flame is higher, the combustion is more sufficient, the higher the temperature of the vaporizing device 12 is, the higher the circulating temperature is, the better the vaporizing effect is, the better the purity of the hydrogen is, the higher the purity of the hydrogen is, the more sufficient the combustion of the first cooking range 11 is, the higher the more sufficient temperature of the combustion is, the longer the circulating combustion time is, and the better the effect is.
The heat supply combustion vaporization area 21 of the vaporization device 12 is directly supplied with liquid fuel by the high-pressure pump 1 through the third combustion pipeline 16, the heat supply combustion vaporization area 21 is spiral, and the fuel enters from the outer side and is conveyed to the second cooking range 13 from the inner side through a pipeline. The first cooking range 11 has burnt the two temperature areas of the vaporizing device 12 to high temperature through the second combustion pipeline 15, the temperature at this moment has already reached the requirement for vaporizing the liquid fuel, the third valve 18 on the third combustion pipeline 16 is directly opened, the liquid fuel enters the heat supply combustion vaporization area 21, the vaporization effect is good at this moment, the oxyhydrogen purity is high, the heat of combustion will be higher, and then the second cooking range 13 burns, the obtained calorific value will be very high; in addition, the flame of the first cooking range 11 directly burns the second cooking range 13 at the same time, so that the second cooking range 13 and the vaporizing device 12 are simultaneously in the flame, which means that the vaporized gas fuel is secondarily vaporized through the second cooking range 13, the gas fuel after secondary vaporization has a higher pure heat value, the combustion of the second cooking range 13 is more sufficient, and the temperature and the heat are increased.
The co-combustion high-temperature area in the mixed combustion cylinder 22 is the flame combustion mixing position of the first cooking range 11 and the second cooking range 13, the combustion temperature of the first cooking range 11 is lower than that of the second cooking range 13, the combustion of some combustible substances or pollutants is not sufficient, the combustible substances and pollutants which do not combust in the first cooking range 11 are combusted during the process of passing through the second cooking range 13, the pollution is reduced, the combustion temperature can be increased, the combustion-supporting effect is achieved simultaneously, and low emission or zero emission is achieved.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.