CN219014305U - Light oil high-temperature gasification combustion system - Google Patents
Light oil high-temperature gasification combustion system Download PDFInfo
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- CN219014305U CN219014305U CN202222772600.2U CN202222772600U CN219014305U CN 219014305 U CN219014305 U CN 219014305U CN 202222772600 U CN202222772600 U CN 202222772600U CN 219014305 U CN219014305 U CN 219014305U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses a light oil high-temperature gasification combustion system which comprises a controller, a pressurizing air pump, a pressure oil tank, a pressure switch, an electronic flow valve, a preheater, an electric heating evaporator, an air distribution mechanism, a premixing cavity, a combustion chamber and a igniting head, wherein the air distribution mechanism is arranged on the air distribution mechanism; the input end of the controller is respectively connected with the pressure switch and the electric heating evaporator, and the output end of the controller is respectively connected with the pressurizing air pump, the electronic flow valve and the electric heating evaporator; the pressurizing air pump is connected with the pressure oil tank; the pressure switch is connected to the air path between the pressure oil tank and the pressurizing air pump; the inlet end of the preheater is communicated with the pressure oil tank through an electronic flow valve and a pipeline, and the outlet end of the preheater is connected to the inlet end of the electric heating evaporator through a pipeline; the outlet of the electric heating evaporator is connected with an oil-gas mixing nozzle in the premixing cavity; the bottom of the premixing cavity is provided with an air inlet which is used for being connected with the air distribution mechanism. The utility model solves the problems of inconvenient use and safety caused by the use of the pressure oil tank for oil supply.
Description
Technical Field
The utility model belongs to the field of light oil gasification combustion, and particularly relates to a light oil high-temperature gasification combustion system.
Background
In the light oil gasifying combustion technology, the gas formed by gasifying the fuel is easy to mix with air, so that the combustion effect and efficiency are high, but the temperature of the light oil gasifying in the heat feedback gasifying mode is difficult to control, the temperature is low in a small fire state, the gasifying amount is insufficient, the fire power is reduced, the gasified fuel oil amount is reduced, the fire power is further reduced, the state of cacheline circulation is entered, and the condition of vibration combustion of flame occurs. Because the temperature of the pipe cavity is higher than the optimal value of the gasification temperature, the condition of coking carbon deposition of the fuel occurs in the inside, and after the fuel is accumulated for a period of time, the impurity fills and plugs the pipeline and the gasification cavity, so that the system cannot be used normally; in the electric heating gasification device, all heat of fuel oil heating gasification needs to be provided by a heater, and the heating power needs to be 0.8-1 kw and is limited by the rated electric power of the system, so that the requirements of high flow and high power output cannot be met, and high-power equipment cannot be used.
Disclosure of Invention
The utility model aims to provide a light oil high-temperature gasification combustion system so as to solve the problems in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
a light oil high-temperature gasification combustion system comprises a controller, a pressurizing air pump, a pressure oil tank, a pressure switch, an electronic flow valve, a preheater, an electric heating evaporator, an air distribution mechanism, a premixing cavity, a combustion chamber and an ignition head; wherein, the liquid crystal display device comprises a liquid crystal display device,
the input end of the controller is respectively connected with the pressure switch and the electric heating evaporator, and the output end of the controller is respectively connected with the pressurizing air pump, the electronic flow valve and the electric heating evaporator;
a temperature sensor is arranged in the electric heating evaporator; the pressurizing air pump is connected with the pressure oil tank; the pressure switch is connected to the air path between the pressure oil tank and the pressurizing air pump;
the preheater is fixedly arranged in the combustion chamber, and the inlet end of the preheater is communicated with the pressure oil tank through an electronic flow valve and a pipeline; the outlet end of the preheater is connected to the inlet end of the electric heating evaporator through a pipeline; the outlet of the electric heating evaporator is connected with an oil-gas mixing nozzle in the premixing cavity; the premixing cavity is arranged below the preheater, an air inlet used for being connected with the air distribution mechanism is arranged at the bottom of the premixing cavity, and an oil-gas mixing nozzle is arranged inside the premixing cavity.
Further, the controller can determine whether the pressurizing air pump needs to be started to pressurize the fuel tank according to the pressure of the pressure fuel tank; when the pressure maintaining system works in the pressure oil tank, the controller directly enters an oil supply and ignition program; when the pressure oil tank is in a non-pressure state, the controller starts the pressurizing air pump to pressurize the pressure oil tank until the pressure value set by the pressure switch is reached, and then the oil supply ignition program is entered.
Further, a back pressure pipe is connected between the electrically heated evaporator and the pressure oil tank.
In the utility model, fuel oil flows through the preheater to be primarily heated, the controller controls the output power of the electric heating evaporator according to the set fuel oil gasification temperature, ensures that the fuel oil is gasified at the temperature of 350-380 ℃ and maintains the temperature dynamic balance of the electric heating evaporator; the fuel steam is mixed with air through the premixing cavity and then sent into the combustion chamber to burn, and the released heat heats the preheater; the preheated fuel has a certain temperature, plays an auxiliary role in gasifying the electric heating evaporator, reduces the power consumption of pure electric heating, and simultaneously avoids the problems of fuel pipeline blockage and early failure caused by coking and carbon deposition due to gasifying the fuel at an excessive temperature.
The preheater preheats the fuel oil to 200-300 ℃; the fuel oil is heated again (the heating temperature value is set to 350-380 ℃) after entering the electric heating evaporator, so that the fuel oil is gasified into fuel steam under the high temperature effect, most of the fuel steam enters the premixing cavity to be mixed with air and then enters the combustion chamber to be combusted, and the little of the fuel steam enters the pressure supply pressure oil tank from the back pressure pipe; because the fuel oil is preheated and then enters the electric heating evaporator, the temperature of the fuel oil reaches the gasification critical state, the gasification effect can be achieved by only providing a small amount of energy, and the electric power consumption of the electric heating evaporator is reduced.
The utility model adopts the active control technology to effectively and accurately control the high-temperature gasification combustion, achieves the purposes that the diesel can be completely gasified and combusted without coking and carbon deposition blocking the oil way caused by overhigh temperature, and simultaneously solves the problems of inconvenient use and safety caused by the use of the pressure oil tank for supplying oil.
According to the utility model, the controller controls the temperature in the electric heating evaporator, so that the temperature in the electric heating evaporator is kept at the critical value of 350-380 ℃ for gasifying the light oil, the gasified fuel in the inner pipeline of the electric heating evaporator is free from coking and carbon deposition, the service life is greatly prolonged, the effect of gasifying the light oil is ensured, and the combustion efficiency is improved. According to the utility model, the fuel oil is preheated and then enters the electric heating evaporator, so that the gasification effect is achieved by providing a small amount of energy in the electric heating evaporator, and the electric power consumption of the electric heating evaporator is reduced.
Drawings
FIG. 1 is a schematic illustration of the present utility model;
FIG. 2 is a flow chart of the present utility model;
FIG. 3 is a schematic view of the automatic pre-compression oil supply of the present utility model;
FIG. 4 is a graph of the relationship of a preheater, an electrically heated evaporator, and a premix chamber.
Detailed Description
Embodiments of the present utility model will now be described with reference to the accompanying drawings. It will be appreciated by those skilled in the art that the following examples are illustrative of the present utility model and should not be construed as limiting the scope of the utility model. The specific techniques, connections, or conditions are not identified in the examples and are set forth in accordance with the techniques, connections, conditions, or in accordance with the product specifications described in the literature in this field. The materials, instruments or equipment used are conventional products available from commercial sources, not identified to the manufacturer.
In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model is understood by those of ordinary skill in the art according to the specific circumstances.
1-4, the light oil high-temperature gasification combustion system provided by the utility model comprises a controller 1, a pressurizing air pump 2, a pressure oil tank 3, a pressure switch 4, an electronic flow valve 5, a preheater 6, an electric heating evaporator 7, an air distribution mechanism 8, a premixing cavity 9, a combustion chamber 10 and an ignition head 12; wherein, the liquid crystal display device comprises a liquid crystal display device,
the input end of the controller 1 is respectively connected with the pressure switch 4 and the temperature sensor in the electric heating evaporator 7, and the output end of the controller 1 is respectively connected with the pressurizing air pump 2, the electronic flow valve 5 and the electric heating evaporator 7;
a temperature sensor is arranged in the electric heating evaporator 7, a temperature signal is sent to the controller 1 by the temperature sensor in the electric heating evaporator 7, and the controller 1 controls the power of the electric heater according to the gasification temperature value requirement of the fuel oil so as to gasify the fuel oil; in the utility model, the controller 1 controls the temperature in the electric heating evaporator, so that the temperature in the electric heating evaporator is kept at a critical value of 350-380 ℃ for gasifying the light oil, the gasified fuel in the pipeline in the electric heating evaporator is not coked and carbon deposition, the service life is greatly prolonged, the effect of gasifying the light oil is ensured, and the combustion efficiency is improved; the pressurizing air pump 2 is connected with the pressure oil tank 3 and is used for increasing the pressure in the pressure oil tank 3; the pressure switch 4 is connected to the air path between the pressure oil tank 3 and the pressurizing air pump 2, namely, the pressure switch 4 is connected with the pressure oil tank 3 and the pressurizing air pump 2 through a three-way valve, the action pressure is set to be 30kpa, and when the controller 1 works, the pressurizing air pump 2 is started to pressurize the pressure oil tank 3; according to the same characteristics of the pressure parameters of the communicating vessel, the pressure of the pressure oil tank 3 and the pressure of the pressure switch 4 rise simultaneously when the pressurizing air pump 2 pressurizes, and the internal pressure is the same; when the pressure reaches a set value of 30kpa, the pressure switch 4 is switched from normal closed to normal open, and after the controller 1 detects the action of the pressure switch, the controller controls the pressurizing air pump 2 to stop working, and the pressurizing process of the pressure oil tank 3 is completed when the controller starts; the controller 1 and the pressure oil tank 3 together form an electric control pre-pressing oil supply device;
the preheater 6 is fixedly arranged in the combustion chamber 10 and is of a coil pipe structure, and the inlet end of the preheater is communicated with the pressure oil tank 3 through the electronic flow valve 5 and a pipeline; the outlet end of the preheater 6 is connected to the inlet end of the electrically heated evaporator 7 by a pipe; the fuel oil enters the preheater 6 and is preheated by the high temperature in the combustion chamber 10 to reach the critical temperature value of gasification, so that the direct gasification caused by the overhigh temperature is avoided; the outlet of the electric heating evaporator 7 is connected with an oil-gas mixing nozzle in the premixing cavity 9; the premixing cavity 9 is arranged below the preheater 6, the bottom of the premixing cavity 9 is provided with an air inlet used for being connected with the air distribution mechanism 8, and an oil-gas mixing nozzle is arranged in the premixing cavity; the air distribution mechanism 8 is an air door with an opening capable of being manually adjusted, and can regulate and control graded air according to different use environments so as to meet the requirements of fan combustion; the fuel enters the oil-gas mixing nozzle under the combined action of the pressure oil tank 3 and the electric heating evaporator 7, the high-speed airflow of the sprayed oil mist forms negative pressure, the external air enters the premixing cavity 9 through the air door of the air distribution mechanism 8 under the action of atmospheric pressure, and the purpose of regulating and controlling the air quantity of the premixing cavity 9 is realized through the adjustment of the opening area of the air door so as to meet the requirement of the combustion air quantity.
The light oil in the pressure oil tank 3 enters the electronic flow valve 5 through a pipeline, the controller 1 controls the opening of the electronic flow valve 5 to control the fuel flow (the controller 1 determines the control parameters of the electronic flow valve 5 according to the fire regulation signal to supply the matched fuel quantity); the fuel oil enters the preheater 6 and is preheated, enters the electric heating evaporator 7 through the pipeline and is gasified after being heated to 350-380 ℃ again, is sprayed out through the oil-gas mixing nozzle in the premixing cavity, and is injected to mix the air conveyed by the air distribution mechanism 8, and the air is ignited and burned at the upper part of the premixing cavity 9. The fuel high-temperature gasification system composed of the pressure oil tank 3, the preheater 6 and the electric heating evaporator 7 can quickly build pressure in the pressure oil tank 3.
According to a further optimization scheme, a back pressure pipe 11 is connected between the electric heating evaporator 7 and the pressure oil tank 3 so as to make up for the pressure reduction of the pressure oil tank 3 caused by the reduction of fuel oil in working. After the system enters a normal working state, the fuel gasified by the electric heating evaporator 7 forms pressure in a closed pipeline system, is introduced into the pressure oil tank 3 through a back pressure pipe, forms pressure in the oil tank, pushes the fuel to flow from the pressure oil tank 3 to the electronic flow valve 5 and the preheater 6, forms a positive feedback process of fuel supply, maintains the continuous progress of the combustion process, and achieves the purpose of automatic oil supply.
When in use, the control system carries out self-checking firstly, and the detection parameters are the fuel temperature and the fuel tank pressure value; according to different temperatures, the output oil temperature of the electric heating evaporator 7 is different, so that the combustion requirements under different temperature conditions are met; the controller 1 determines whether the pressurizing air pump 2 needs to be started to pressurize the fuel tank according to the pressure of the pressure oil tank 3, for example, restarting the device after short interruption of use, and at this time, the pressure oil tank 3 also has the operation of a pressure maintaining system, and the controller 1 directly enters the oil supply and ignition program; if the pressure oil tank 3 is in a non-pressure state, the controller 1 starts the pressurizing air pump 2 to pressurize the pressure oil tank 3 until the pressure value set by the pressure switch is reached, and then the pressurizing is completed, and the oil supply ignition program is entered.
The controller 1 controls the electronic flow valve 5 to open the fuel into the preheater 6 according to the set fuel supply flow; because flame is not formed in the combustion chamber during starting, the preheater 6 cannot be heated (i.e. the preheater 6 does not work in the initial stage of operation), fuel oil keeps normal temperature and flows through the preheater 6, enters the electric heating evaporator 7, after being heated, the fuel oil is gasified and evaporated in the electric heating evaporator 7 to form fuel oil vapor with pressure, one part of the fuel oil vapor enters the fuel tank to compensate for the pressure reduction caused by the reduction of the fuel oil during working, the other part of the fuel oil vapor enters the oil-gas mixing nozzle, air with flow rate controlled by the air distribution mechanism 8 in the premixing cavity 9 is mixed, and after the fuel oil enters the combustion chamber 10 after encountering the high-temperature hot surface of the ignition head 12, a great amount of heat is released; the fuel oil in the preheater 6 in the combustion chamber absorbs heat (the temperature of the fuel oil does not reach the gasification temperature), the fuel oil enters the electric heating evaporator 7 after being heated by the main flame, the preheated fuel oil is subjected to secondary heating by the electric heating evaporator 7, the controller 1 adjusts the electric power according to the temperature of the electric heating evaporator 7, the gasification and combustion effects of the fuel oil are ensured, and the phenomenon that the fuel oil is directly gasified to generate colloid and carbon deposit to block the preheater 6 is avoided.
According to the utility model, the temperature sensor is arranged in the electric heating evaporator 7, so that the temperature of the electric heating evaporator 7 can be controlled while the fuel is gasified in the electric heating evaporator 7, and the condition that the fuel coking carbon deposit blocks an oil duct due to overhigh temperature is avoided.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, and any minor modifications, equivalents, and improvements made to the above embodiment according to the technical substance of the present utility model should be included in the scope of the technical solution of the present utility model.
Claims (3)
1. The utility model provides a light oil high temperature gasification combustion system which characterized in that: the device comprises a controller (1), a pressurized air pump (2), a pressure oil tank (3), a pressure switch (4), an electronic flow valve (5), a preheater (6), an electric heating evaporator (7), a fan mechanism (8), a premixing cavity (9), a combustion chamber (10) and an ignition head (12); wherein, the liquid crystal display device comprises a liquid crystal display device,
the input end of the controller (1) is respectively connected with the pressure switch (4) and the electric heating evaporator (7), and the output end of the controller (1) is respectively connected with the pressurizing air pump (2), the electronic flow valve (5) and the electric heating evaporator (7);
a temperature sensor is arranged in the electric heating evaporator (7); the pressurizing air pump (2) is connected with the pressure oil tank (3); the pressure switch (4) is connected to the air path between the pressure oil tank (3) and the pressurizing air pump (2);
the preheater (6) is fixedly arranged in the combustion chamber (10), and the inlet end of the preheater is communicated with the pressure oil tank (3) through the electronic flow valve (5) and the pipeline; the outlet end of the preheater (6) is connected to the inlet end of the electric heating evaporator (7) through a pipeline; the outlet of the electric heating evaporator (7) is connected with an oil-gas mixing nozzle in the premixing cavity (9); the premixing cavity (9) is arranged below the preheater (6), an air inlet used for being connected with the air distribution mechanism (8) is arranged at the bottom of the premixing cavity (9), and an oil-gas mixing nozzle is arranged inside the premixing cavity.
2. The high-temperature gasification combustion system of light oil according to claim 1, wherein the controller (1) determines whether the pressurizing air pump (2) needs to be started to pressurize the fuel tank according to the pressure of the pressure oil tank (3); when the pressure oil tank (3) also works with a pressure maintaining system, the controller (1) directly enters an oil supply and ignition program; when the pressure oil tank (3) is in a non-pressure state, the controller (1) starts the pressurizing air pump (2) to pressurize the pressure oil tank (3) until the pressure value set by the pressure switch is reached, then the pressurizing is completed, and the oil supply ignition program is entered.
3. A light oil high temperature gasification combustion system according to claim 1, wherein a back pressure pipe (11) is connected between the electrically heated evaporator (7) and the pressure tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222772600.2U CN219014305U (en) | 2022-10-21 | 2022-10-21 | Light oil high-temperature gasification combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222772600.2U CN219014305U (en) | 2022-10-21 | 2022-10-21 | Light oil high-temperature gasification combustion system |
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| Publication Number | Publication Date |
|---|---|
| CN219014305U true CN219014305U (en) | 2023-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222772600.2U Active CN219014305U (en) | 2022-10-21 | 2022-10-21 | Light oil high-temperature gasification combustion system |
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| Country | Link |
|---|---|
| CN (1) | CN219014305U (en) |
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2022
- 2022-10-21 CN CN202222772600.2U patent/CN219014305U/en active Active
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Effective date of registration: 20230801 Granted publication date: 20230512 |