Multi-stage split energy-saving combustion device for liquid fuel

Abstract

The utility model discloses a multi-stage split energy-saving combustion device for liquid fuel, the energy-saving combustion device is composed of a combustion cylinder, an ion combustion body and a combustion body installation box in sequence from top to bottom, the upper end of the ion combustion body is fixedly connected with the combustion cylinder, the lower end of the ion combustion body is provided with an impeller air inlet channel, and the combustion cylinder is fixedly connected with the combustion body installation box. The impeller air inlet channel is located in the combustion body installation box, the combustion body installation box is of a hollow cavity structure, and a fan air inlet and an oil inlet hole are formed in the side face of the combustion body installation box. Compared with the prior art, the atomization combustion mode of an original electronic injection fuel stove is changed essentially, atomization of a high-pressure atomization nozzle is not needed, high-temperature vaporization combustion of liquid fuel is achieved in the first-stage combustion cavity, stable combustion and sufficient vaporization are achieved in the second-stage combustion cavity, and sufficient combustion and heating are achieved in the third-stage combustion cavity. The energy consumption is lower, the heat utilization rate is nearly doubled, the safety is higher, the independence is good, and the applicability is wide.

Description

Technical Field

[0001] The utility model relates to the field of liquid fuel stoves, in particular to a multi-stage split energy-saving combustion device for liquid fuel. Background Art

[0002] In the vast commercial stove market, most of them use liquefied gas fuel, such as gas cylinders, which are widely used in schools, troops, restaurants, hotels and other multi-person stove occasions. This traditional liquefied gas has problems such as low calorific value, high cost, low flash point, flammability and explosion, and great safety risks. Due to the great safety risks of liquefied gas fuel, national supervision is becoming more and more strict. As a result, commercial stove fuels have begun to turn to safe fuels with relatively high flash points---liquid fuels (coal-based liquid fuels). Coal-based liquid fuel for kitchen stoves is a non-toxic, harmless, high-flash point, liquid kitchen stove clean fuel mainly composed of alkanes, made from Fischer-Tropsch synthesis hydrocarbons, industrial white oil, high-flash point hydrocarbon compounds, etc., compounded with high molecular oxygen-containing compounds and additives. The main advantages of this fuel oil are wide application, low price, high calorific value, good safety, and clean and environmentally friendly.

[0003] At present, liquid fuel stoves are mainly electric fuel stoves in terms of fuel supply. They are mainly used in commercial high-fire stoves, a series of Chinese stir-fry stoves, and large pot stoves. They are also used in other kitchen stoves such as steamers, braising barrels, cooking stoves, clay pot stoves, etc. as well as heating products. Pulse oil pumps are used to vaporize the fuel.

[0004] The combustion method of the electric fuel injection stove is that the liquid fuel must be pressurized to 12 kg to ensure that the liquid fuel sprayed from the atomizing nozzle is in a mist form. The mist liquid fuel can be mixed with the air blown in by the fan in the stove air chamber for combustion, and then the 20,000 volt voltage is generated by the ignition needle to ignite the mixed gas, and the first-level combustion is achieved in the stove air chamber. After passing through the fire ring, it is released into the stove basin for secondary full combustion to achieve the heating of the pot. See Figure 7 . Electric fuel injection cookers belong to the development combustion system, which requires liquid fuel to be pressurized and atomized before being sprayed in. In addition, the fan blows air to assist combustion, and the liquid fuel expands in volume during vaporization and combustion. The pressure in the stove basin is also relatively high. Therefore, it is often seen that many commercial stoves use high heat and the flame sprays out from the side of the pot. At this time, a lot of fuel does not have time to heat the bottom of the pot, and it sprays out from the exhaust ports on both sides of the stove basin, resulting in a very low heat utilization rate of electric fuel injection stoves on the market, mostly around 22%.

[0005] Since the pressurized injected fuel cannot directly contact the bottom of the pot, it must maintain a certain distance from the pot to ensure that the liquid fuel has enough space to vaporize. As a result, the flame cannot be concentrated on the bottom of the pot for sufficient heating during the secondary combustion. Although a fire ring is added to the stove to gather the fire, it is difficult for the flame to completely gather at the bottom of the pot, which is also the reason for the low heat utilization of open combustion such as electric fuel injection stoves.

[0006] The electronic fuel injection method only atomizes the liquid fuel to meet the combustion conditions, but does not really realize the vaporization of the liquid fuel, so it is not easy to burn quickly and fully. Moreover, the liquid fuel needs to be added with high pressure to ensure the atomization, so the electric energy needs to be large, and it needs to be equipped with a 220V power supply for power supply, and an external wire is required, which limits the use environment of the liquid stove and cannot be used independently outdoors. Moreover, the existing electronic fuel injection stove cannot be adjusted to a low fire, because turning on a low fire will reduce the amount of oil intake, and the reduced amount of oil intake will cause the oil intake pressure of the nozzle to decrease, which cannot meet the atomization conditions of the nozzle. Therefore, under a certain pressure, there will be a minimum flow requirement for the amount of oil injection, such as a 0.65-caliber atomizing nozzle, and the required minimum flow rate is 700g / h. Therefore, the existing electronic fuel injection stove is only suitable for catering kitchens and canteens, where high-fire fierce fire is used for stir-frying, and cannot be used in environments such as hot pot restaurants and clay pot restaurants that require low fires. Moreover, many existing gas stoves have a flameout protection function, and the electronic fuel injection stove has no flameout protection function because the environment is limited and the stove working temperature is very high. Utility Model Content

[0007] The purpose of the utility model is to provide a multi-stage split energy-saving combustion device for liquid fuel, which solves the above-mentioned technical problems, subverts the combustion mode of the existing electric fuel injection stove, can completely replace the use scenario of the existing electric fuel injection stove, improves the thermal utilization rate by nearly one-fold, and greatly reduces energy consumption.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a multi-stage split energy-saving combustion device for liquid fuel, which is composed of a combustion tube, an ion combustion body and a combustion body mounting box from top to bottom, the upper end of the ion combustion body is fixedly connected to the combustion tube, the lower end of the ion combustion body is fixedly connected to the combustion body mounting box, the lower end of the ion combustion body is provided with an impeller air inlet channel, the impeller air inlet channel is located in the combustion body mounting box, the combustion body mounting box is a hollow cavity structure, and the side of the combustion body mounting box is provided with a fan air inlet and an oil inlet hole.

[0009] Preferably, the ion combustion body is composed of a base, a vaporization combustion cylinder and a cyclone air inlet cylinder. The vaporization combustion cylinder is vertically arranged at the center of the base, and the cyclone air inlet cylinder is located in the vaporization combustion cylinder. A primary combustion chamber is formed between the outer wall of the cyclone air inlet cylinder and the vaporization combustion cylinder. An air inlet and an impeller air inlet channel are provided at the bottom of the ion combustion body. The impeller air inlet channel is connected with the interior of the cyclone air inlet cylinder through the air inlet, and an ion fire dividing tooth is provided at the top of the vaporization combustion cylinder.

[0010] Preferably, an upper combustion tube ring is provided on the top of the combustion tube, and a lower combustion tube ring is provided on the bottom. The bottom end of the combustion tube is fixedly connected to the upper end of the vaporization combustion tube. A cavity is left between the lower combustion tube ring and the ion ignition tooth to form a secondary combustion chamber. A tertiary combustion chamber is formed between the upper combustion tube ring and the lower combustion tube ring.

[0011] Preferably, the lower ring of the combustion tube is in the shape of an annular cover body, the lower ring of the combustion tube is located inside the combustion tube and is welded to the lower part of the combustion tube, a fire-gathering hole is opened in the middle of the lower ring of the combustion tube, and the upper ring of the combustion tube is annular and is welded to the upper end surface of the combustion tube.

[0012] Preferably, a ring-shaped oil path is provided on the inner wall of the vaporization combustion cylinder, and an atomization combustion net is welded on the oil path.

[0013] Preferably, the base is provided with an oil inlet and an ignition plug mounting hole along the side of the vaporization combustion tube, the oil inlet and the ignition plug mounting hole are both connected to the oil circuit, and the oil inlet is arranged along the tangent direction of the vaporization combustion tube.

[0014] Preferably, an oil pump is further included, and the oil pump is connected to the oil inlet of the ion combustion body through an oil inlet pipe.

[0015] Preferably, a thermocouple probe is further included, and the thermocouple probe is vertically installed on the ion combustion body and located near the combustion tube.

[0016] Preferably, the combustion tube is in the shape of an elongated cylinder, with its upper end extending to the bottom of the stove.

[0017] Preferably, a heat-insulating groove is left between the outer side wall of the vaporization combustion tube and the base.

[0018] Compared with the prior art, the advantages of the utility model are:

[0019] (1) The utility model fundamentally changes the atomization combustion mode of the original electric fuel injection stove through the structural design of the ion combustion body, and changes the original open combustion mode of the electric fuel injection stove into a closed multi-stage combustion mode, and does not need to be atomized by a high-pressure atomizing nozzle. The temperature generated by the primary combustion in the first-stage combustion chamber is used in conjunction with the air intake of the cyclone air intake cylinder to achieve true high-temperature vaporization of the liquid fuel, and stably burns and fully vaporizes in the second-stage combustion chamber, and fully burns and generates heat in the third-stage combustion chamber. The generated heat will not rush out from both sides of the cookware quickly, which greatly reduces the heat energy loss. Compared with the electric fuel injection stove, the heat utilization rate is increased by nearly one-fold, and the energy consumption such as oil and electricity is only half of the original. In addition, the utility model has higher safety, good independence, and wide applicability.

[0020] (2) The utility model realizes full vaporization and stable combustion of liquid fuel through the design of the secondary combustion chamber. When burning in the low-fire mode, the liquid fuel can stably fission and burn on the ion spark divider teeth of the secondary combustion chamber, continuously generating stable heat.

[0021] (3) The utility model adopts the design of a long cylindrical combustion tube to change the open combustion mode of the electric spray stove in the stove basin. The liquid fuel is fully burned in the three-stage combustion chamber. The heat generated by the combustion can be directly gathered to the bottom of the cookware for centralized heating. Compared with direct flame heating, the heating effect is better and the heat utilization rate is greatly improved. As the liquid fuel burns in the three-stage combustion chamber, the heat radiation generated by the combustion tube will also be transmitted from the side to the stove basin, raising the temperature in the stove basin and avoiding the cooling of the liquid fuel caused by the local temperature being too low.

[0022] (5) The utility model designs a combustion body installation box, which serves as an air chamber. The fan blows air into the combustion body installation box, and the air enters the ion combustion body through the impeller air inlet channel to realize the spiral jet of the cyclone air inlet cylinder. The fan can also dissipate heat to the bottom of the ion combustion body while blowing air, thereby preventing the combustion body installation box from being too high and scalding users. It can also play a good protective role for lines and pipelines.

[0023] (6) In order to further improve the vaporization effect of liquid fuel, the utility model has a ring-shaped oil path on the inner wall of the vaporization combustion cylinder, and a circle of atomization combustion net is welded on the oil path, which contacts and mixes with the air ejected from the cyclone air intake cylinder, so that the liquid fuel is also easier to vaporize and burn.

[0024] (6) Through structural design, the utility model can install a thermocouple probe on the annular mounting plate of the base. The thermocouple probe does not need to be placed in the combustion chamber, and flameout protection is achieved through monitoring of the combustion tube.

[0025] (7) The utility model adopts a casting structure design to integrally precision-cast the base, vaporizing combustion tube, impeller air inlet passage and cyclone air inlet tube, thereby greatly improving the structural connection stability and sealing performance. The entire ion combustion body has only the flame outlet on the vaporizing combustion tube and the air inlet of the impeller air inlet passage at the bottom of the base, so there is no need to worry about the leakage of liquid fuel.

[0026] (8) The utility model has essentially changed the vaporization combustion mode of liquid fuel. It only needs to use a 12V DC fan with a maximum power of 60W. When the fire is low, the working power of the fan is only 20W. It can be used independently with a mobile battery. It has low energy consumption and does not require an external power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the internal cross-sectional structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the overall external structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the ion combustion body of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the impeller air inlet channel at the bottom of the ion combustion body of the utility model;

[0031] Figure 5 This is a schematic diagram of the internal structure of the combustion tube and the ion fire dividing teeth of the utility model;

[0032] Figure 6 This is a structural principle diagram of the utility model applied to a commercial stove;

[0033] Figure 7 The present invention is a structural principle diagram of an existing electric fuel injection stove applied to a commercial stove.

[0034] In the figure: 1. primary combustion chamber; 2. secondary combustion chamber; 3. tertiary combustion chamber; 4. base; 41. air inlet; 42. heat insulation groove; 43. mounting plate; 44. oil inlet; 45. ignition plug mounting hole; 5. vaporization combustion tube; 51. oil circuit; 52. atomization combustion net; 6. cyclone air inlet tube; 61. air chamber tube; 62. air chamber cover; 63. high-position air outlet; 64. low-position air outlet; 7. impeller air inlet channel; 71. spiral teeth; 72. spiral tooth cover plate; 8. ion fire dividing teeth; 9. combustion tube; 91 combustion tube upper ring; 92. combustion tube lower ring; 10. combustion body mounting box; 11. oil pump; 111. oil inlet pipe; 12. fan; 13. thermocouple probe; 14. pot; 15. stove basin; 16. electric fuel injection stove; 17. nozzle. DETAILED DESCRIPTION

[0035] The utility model will be further described below, specifically as follows: a multi-stage split energy-saving combustion device for liquid fuel, see Figures 1 to 6 The combustion device is composed of a combustion tube 9 and an ion combustion body, and the ion combustion body is composed of a base 4, a vaporization combustion tube 5 and a cyclone air inlet tube 6. The vaporization combustion tube 5 is vertically arranged at the center of the base 4. The top of the vaporization combustion tube 5 is provided with an ion fire dividing tooth 8. The cyclone air inlet tube 6 is located in the vaporization combustion tube 5. A primary combustion chamber 1 is formed between the outer wall of the cyclone air inlet tube 6 and the vaporization combustion tube 5. The top of the combustion tube 9 is provided with a combustion tube upper ring 91, and the lower part is provided with a combustion tube lower ring 92. The bottom end of the combustion tube 9 It is fixedly connected to the upper end of the vaporization combustion tube 5, and a cavity is left between the combustion tube lower ring 92 and the ion ignition tooth 8 to form a secondary combustion chamber 2. A tertiary combustion chamber 3 is formed between the combustion tube upper ring 91 and the combustion tube lower ring 92. An oil inlet 44 and an ignition plug mounting hole 45 are provided on the side of the ion combustion body. The tube oil inlet 44 is connected to the inside of the primary combustion chamber 1. An air inlet 41 and an impeller air inlet channel 7 are provided at the bottom of the ion combustion body. The impeller air inlet channel 7 is connected to the inside of the cyclone air inlet tube 6 through the air inlet 41.

[0036] The utility model adopts the structural design of the first-stage combustion chamber 1 of the ion combustion body, so that the liquid fuel entering the first-stage combustion chamber 1 does not need to be atomized by the high-pressure atomizing nozzle 17, and only a small amount of liquid fuel needs to be sprayed into the first-stage combustion chamber 1, and the cyclone generated by the cyclone air intake cylinder 6 can realize the dispersed cracking and vaporization of the liquid fuel, thereby meeting the ignition conditions. After ignition, the liquid fuel continues to burn in the first-stage combustion chamber 1, and the first-stage combustion chamber 1 performs primary combustion to generate a large amount of high temperature. The cyclone air intake cylinder 6 synchronously intakes air to realize the subsequent full vaporization and combustion of the liquid fuel. The heat of continuous combustion in the first-stage combustion chamber 1 makes the liquid combustion and vaporization no longer rely on the nozzle atomization, but continuously vaporizes the liquid fuel through high temperature. The structural design greatly reduces the amount of oil intake and power consumption of the combustion device, because the flame will not rush out quickly from both sides of the pot 14 due to the rapid gas circulation, causing waste of the heat generated by the fuel.

[0037] The utility model forms a secondary combustion chamber 2 through the ion fire dividing teeth 8 and the combustion tube lower ring 92 in the vaporization combustion tube 5. Since the cyclone air intake makes the flame more turbulent, the structural design of the secondary combustion chamber 2 uses the ion fire dividing teeth 8 to evenly divide the flame, so that the liquid fuel can burn stably in the secondary combustion chamber 2, and the liquid fuel can be further fully vaporized and burned; especially when the fire is small, the liquid fuel can form a stable blue flame combustion surface on the ion fire dividing teeth 8, and the combustion is concentrated through the combustion tube lower ring 92 to enter the tertiary combustion chamber 3.

[0038] Since the oil inlet method of the utility model no longer requires high pressure upward injection, the vaporization position of the liquid fuel is concentrated at the bottom, so the heat of the flame combustion can be directly gathered to the bottom of the stove through the designed long cylindrical combustion tube 9. The design of the combustion tube 9 can make the fuel fully burn in the three-stage combustion chamber 3, and gather the heat generated by the combustion and fission of the liquid fuel in the combustion tube 9, so as to centrally heat the bottom of the pot 14, which is more efficient than direct flame heating and greatly improves the heat utilization rate. The combustion of liquid fuel in the three-stage combustion chamber 3 will make the combustion tube 9 red and hot, and the generated heat radiation will also be transmitted to the furnace basin 15 to increase the temperature in the furnace basin 15, avoiding the cooling of the liquid fuel caused by the local temperature being too low.

[0039] The existing electric fuel injection cooker has a minimum limit on the amount of oil to achieve atomization. For example, the minimum flow rate required for a 0.65-caliber atomizing nozzle is 700g / h, so it is impossible to start the low-fire mode. However, the present application has essentially changed its vaporization and combustion mode by designing the structure of the primary combustion chamber 1 of the ion combustion body. The liquid fuel is truly vaporized by the heat of the primary combustion chamber 1. When it is necessary to adjust to a low fire, the amount of oil can be adjusted to 120g / h, and vaporization and combustion can be performed by the temperature in the primary combustion chamber 1.

[0040] The existing electric fuel injection stove 16 requires a fan 12 with a power of 120W and uses a 220V power supply, which has high energy consumption. The multi-stage split energy-saving combustion device for liquid fuel in the present application, through the essential change of the vaporization combustion mode of liquid fuel, only needs to use a 12V DC fan 12, whose maximum power is up to 60W. When the fire is low, the working power of the fan 12 is only 20W. It can be used independently with a mobile battery, has low energy consumption, does not require an external power supply, and can be used in hot pot and other catering.

[0041] Through comparative experiments, 5 kg of water was added to the two pots 14 of the experimental example and the control example respectively, and the initial water temperature was measured to be 13°. The experimental example and the control example were opened at the maximum fire at the same time.

[0042] The control example uses an electric spray cooker to heat 5 kg of water from 13°C to 97°C, which takes 4 minutes, consumes about 150 grams of oil, and has a heat utilization rate of about 22%;

[0043] The experimental example adopts the multi-stage split energy-saving combustion device for liquid fuel of the utility model for heating, which takes 2 minutes and 40 seconds, consumes about 85 grams of fuel, and the heat utilization rate can reach about 45%.

[0044] The utility model saves nearly half of the fuel consumption compared with the existing electric fuel injection cookers, and the heat utilization rate is almost doubled. Moreover, it only needs a 12V power supply. Compared with the 220V power supply of the existing electric fuel injection cookers, it consumes less power, consumes less energy, and uses electricity more safely. It only needs to use batteries and does not require an external power cord, so the cooker can be used outdoors without power supply, which greatly improves its use environment.

[0045] Liquid fuel will burn in the combustion chambers of each level of the combustion device, and the overall temperature is relatively high. Considering its installation and use issues, a combustion body installation box 10 is designed. The combustion body installation box 10 is a hollow cavity structure. The ion combustion body is installed on the upper surface of the combustion body installation box 10. The impeller air inlet channel 7 of the ion combustion body is located in the combustion body installation box 10. The side of the combustion body installation box 10 is provided with an air inlet 41 and an oil inlet 44 for a fan 12. The combustion body installation box 10 serves as a wind cavity. The fan 12 pumps air into the combustion body installation box 10, and the air spirally enters the ion combustion body through the impeller air inlet channel 7 to realize the spiral jet of the cyclone air inlet cylinder 6. The fan 12 can also dissipate heat to the bottom of the ion combustion body while blowing air, so as to avoid the temperature of the combustion body installation box 10 being too high and scalding the users. It can also play a good protective role for the lines and pipelines. The lines and oil pipes can pass through the combustion body installation box 10 and be connected to the ion combustion body.

[0046] It also includes a fan 12 and an oil pump 11. The fan 12 is connected to the air inlet 41 of the fan 12 of the combustion body installation box 10, and the air is supplied to the ion combustion body through the fan 12. The oil pump 11 is connected to the oil inlet 44 of the ion combustion body through the oil inlet pipe 111, and the liquid fuel is input into the ion combustion body through the oil pump 11.

[0047] In order to further improve the vaporization effect of liquid fuel, the utility model opens a circle of annular oil circuit 51 on the inner wall of the vaporization combustion cylinder 5, and welds a circle of atomization combustion net 52 on the oil circuit 51. The liquid fuel is transported to the annular oil circuit 51 through the oil inlet pipe 111 and dispersed in a ring shape, which is more conducive to contact with the air ejected from the cyclone air inlet cylinder 6 and dispersed on the atomization combustion net 52, thereby improving the atomization effect during ignition. When the first-level combustion chamber 1 continues to burn, the liquid fuel on the first-level atomization combustion net 52 in the oil circuit 51 is also easier to vaporize.

[0048] An oil inlet 44 and an ignition plug mounting hole 45 are provided on the side of the ion combustion body. The ignition plug mounting hole 45 is used to mount an ignition piston for ignition operation. The oil inlet 44 and the ignition plug mounting hole 45 are both connected to the oil circuit 51. The oil inlet 44 is arranged along the tangential direction of the vaporization combustion tube 5 so that the input liquid fuel can be better distributed along the annular oil circuit 51.

[0049] The base 4 is processed with an annular mounting plate 43 around it, and the annular mounting plate 43 is provided with positioning mounting holes and thermocouple probe 13 mounting holes. The base 4 is fixed to the upper surface of the combustion body mounting box 10 by positioning screws matching the positioning mounting holes, and also includes a combustion thermocouple probe 13, which is vertically mounted on the ion combustion body and located near the combustion tube 9. The annular mounting plate 43 processed around the base 4 provides space for the installation of the thermocouple probe 13. The thermocouple probe 13 does not need to be placed in the combustion chamber. Through the monitoring of the combustion tube 9, when the temperature is very low and a large amount of oil is still entering, it is proved that the ion combustion body has been extinguished and flameout protection is required.

[0050] Since continuous combustion in the primary combustion chamber 1 generates a large amount of heat, in order to prevent the vaporization combustion tube 5 from directly transferring its heat to the combustion body mounting box 10 around the base 4, an insulating groove 42 is left between the outer wall of the vaporization combustion tube 5 and the base 4 to reduce its heat transfer.

[0051] The combustion tube lower ring 92 is in the shape of an annular cover body. The combustion tube lower ring 92 is located in the combustion tube 9 and is welded to the lower part of the combustion tube 9, so that a secondary combustion chamber 2 is formed between it and the ion ignition tooth 8 to achieve stable vaporization and combustion of the liquid fuel. A fire focusing hole is opened in the middle of the combustion tube lower ring 92, and the burning liquid fuel is ignited through the fire focusing hole to make it burn along the length direction of the combustion tube 9. The combustion tube upper ring 91 is annular and is welded to the upper end surface of the combustion tube 9. The combustion tube upper ring 91 has a heat gathering effect on the top of the combustion tube 9, so as to better heat the pot 14.

[0052] By designing the casting structure, the base 4, vaporization combustion tube 5, impeller air inlet channel 7 and cyclone air inlet tube 6 are integrally precision-cast, which greatly increases the structural connection stability and sealing performance. The entire ion combustion body has only the flame outlet on the vaporization combustion tube 5 and the air inlet 41 of the impeller air inlet channel 7 at the bottom of the base 4. There is no need to worry about the leakage of liquid fuel. After the combustion device is shut down, the remaining liquid fuel will only flow into the first-stage combustion chamber 1 after condensation, and there will be no external leakage. When ignited next time, it can be directly vaporized and burned, which greatly improves the safety of the equipment.

[0053] The utility model realizes rotary air intake through the impeller air intake channel 7, and the cyclone air intake cylinder 6 adopts side jet to realize rotary jet in the primary combustion chamber 1, which is beneficial to the dispersed atomization of liquid fuel. In order to realize the air intake method in the above manner, the cyclone air intake cylinder 6 is structurally designed.

[0054] The cyclone air inlet cylinder 6 is composed of an air cavity cylinder 61 and an air cavity cover 62. The air cavity cover 62 is welded to the upper end of the air cavity cylinder 61. The lower end of the air cavity cylinder 61 is fixed to the base 4. The bottom of the base 4 is provided with an air inlet 41 connected to the interior of the air cavity cylinder 61. A plurality of air outlets are vertically provided around the air cavity cylinder 61.

[0055] In order to improve the air outlet effect and ensure that the liquid fuel in the upper and lower parts of the first-stage combustion chamber 1 can be fully vaporized and burned, the air outlet is divided into two types: a high-position air outlet 63 and a low-position air outlet 64. The high-position air outlet 63 and the low-position air outlet 64 are arranged in sequence at intervals. The high-position air outlet 63 is opened at the upper part of the air chamber tube 61, and the low-position air outlet 64 is opened from the upper part of the air chamber tube 61 to the lower part of the air chamber tube 61. The opening of the high-position air outlet 63 can ensure that the liquid fuel in the upper part of the first-stage combustion chamber 1 is fully in contact with the air, thereby improving its vaporization and combustion effect and preventing a large amount of unvaporized liquid fuel from entering the secondary combustion chamber 2.

[0056] In order to realize rotary air intake, the impeller air intake channel 7 is designed. The impeller air intake channel 7 is composed of spiral teeth 71 and spiral tooth cover plates 72. There are several spiral teeth 71, and the several spiral teeth 71 are evenly distributed along the circumferential direction of the air inlet 41 at the bottom of the base 4. The spiral tooth cover plates 72 are welded to the spiral teeth 71. After the spiral tooth cover plates 72 are installed, when the fan 12 is turned on, air can only enter from the gaps between the spiral teeth 71, and enter the cyclone air intake cylinder 6 in a spiral shape, thereby realizing spiral cyclone jet.

[0057] Through the multi-stage split energy-saving combustion device of the utility model, corresponding models can be designed according to the application environment, and can be used for various working environment needs, such as: a 100,000 kcal multi-stage split energy-saving combustion device can be used in the steam generator of a food processing plant. A 50,000 kcal multi-stage split energy-saving combustion device can be used in a small steam generator of a food processing plant. A 25,000 kcal multi-stage split energy-saving combustion device can be used in the field of commercial stoves. A 15,000 kcal multi-stage split energy-saving combustion device can be used in the fields of steam cabinets, rice cooking cabinets, etc. A 5,000 kcal multi-stage split energy-saving combustion device can be used in the fields of clay pot rice, hot pot and household stoves.

[0058] The above is a detailed introduction to a multi-stage split energy-saving combustion device for liquid fuel provided by the utility model. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. Changes and improvements to the utility model will be possible without exceeding the concept and scope specified in the attached claims. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A multi-stage split energy-saving combustion device for liquid fuel, characterized in that: The energy-saving combustion device is composed of a combustion tube, an ion combustion body and a combustion body mounting box from top to bottom. The upper end of the ion combustion body is fixedly connected to the combustion tube, and the lower end of the ion combustion body is fixedly connected to the combustion body mounting box. The lower end of the ion combustion body is provided with an impeller air inlet channel, and the impeller air inlet channel is located in the combustion body mounting box. The combustion body mounting box is a hollow cavity structure, and a fan air inlet and an oil inlet hole are provided on the side of the combustion body mounting box.

2. A multi-stage split energy-saving combustion device for liquid fuel according to claim 1, characterized in that: The ion combustion body is composed of a base, a vaporization combustion tube and a cyclone air inlet tube. The vaporization combustion tube is vertically arranged at the center of the base. The cyclone air inlet tube is located in the vaporization combustion tube. A primary combustion chamber is formed between the outer wall of the cyclone air inlet tube and the vaporization combustion tube. An air inlet and an impeller air inlet channel are provided at the bottom of the ion combustion body. The impeller air inlet channel is connected with the inside of the cyclone air inlet tube through the air inlet. An ion fire dividing tooth is provided at the top of the vaporization combustion tube.

3. A multi-stage split energy-saving combustion device for liquid fuel according to claim 2, characterized in that: A combustion tube upper ring is provided on the top of the combustion tube, and a combustion tube lower ring is provided on the lower part. The bottom end of the combustion tube is fixedly connected to the upper end of the vaporization combustion tube. A cavity is left between the combustion tube lower ring and the ion spark dividing tooth to form a secondary combustion chamber. A tertiary combustion chamber is formed between the combustion tube upper ring and the combustion tube lower ring.

4. A multi-stage split energy-saving combustion device for liquid fuel according to claim 3, characterized in that: The lower ring of the combustion tube is in the shape of an annular cover body. The lower ring of the combustion tube is located inside the combustion tube and is welded to the lower part of the combustion tube. A fire focusing hole is opened in the middle of the lower ring of the combustion tube. The upper ring of the combustion tube is annular and is welded to the upper end surface of the combustion tube.

5. A multi-stage split energy-saving combustion device for liquid fuel according to claim 2, characterized in that: An annular oil path is provided on the inner wall of the vaporization combustion cylinder, and an atomization combustion net is welded on the oil path.

6. A multi-stage split energy-saving combustion device for liquid fuel according to claim 5, characterized in that: The base is provided with an oil inlet and an ignition plug mounting hole along the side of the vaporization combustion tube, the oil inlet and the ignition plug mounting hole are both connected with the oil circuit, and the oil inlet is arranged along the tangent direction of the vaporization combustion tube.

7. A multi-stage split energy-saving combustion device for liquid fuel according to claim 6, characterized in that: It also includes an oil pump, which is connected to the oil inlet of the ion combustion body through an oil inlet pipe.

8. A multi-stage split energy-saving combustion device for liquid fuel according to claim 1, characterized in that: It also includes a thermocouple probe, which is vertically installed on the ion combustion body and located near the combustion tube.

9. A multi-stage split energy-saving combustion device for liquid fuel according to claim 1, characterized in that: The combustion tube is in the shape of a long tube, and the upper end thereof extends to the bottom of the stove.

10. A multi-stage split energy-saving combustion device for liquid fuel according to claim 2, characterized in that: A heat-insulating groove is left between the outer side wall of the vaporization combustion tube and the base.

Images