Diesel oil combustion unit with rotary nozzle and multi-point injection diesel oil stove

Abstract

The invention belongs to the technical field of heating appliances, and particularly relates to a diesel combustion unit with a rotary nozzle and a multi-point injection diesel stove. By means of the design of the rotary spray head, the atomization effect of diesel oil is improved, combustion is more sufficient, formation of carbon deposition is reduced, emission of harmful gas is reduced, the pot bottom is heated more evenly, and the service life of the diesel oil stove is prolonged. The plurality of diesel combustion units are uniformly distributed around the stove body, so that the heat distribution is more uniform, the heat efficiency is improved, and the fuel waste is reduced. And automatic control over the diesel pump, the fan and the electronic fire maker is achieved through the controller, and use convenience and safety are improved. The multi-point injection diesel oil stove has the advantages of improving heat efficiency, reducing formation of carbon deposition, facilitating firepower adjustment, improving the combustion effect, achieving intelligent control and the like, and is an efficient heating appliance suitable for special environments such as field exploration and field rescue.

Description

Technical Field

[0001] The invention belongs to the technical field of heating appliances, and in particular relates to a diesel combustion unit with a rotating nozzle and a multi-point injection diesel stove. Background Art

[0002] Diesel stoves use diesel as fuel and heat the pots by forming a stable combustion flame through the ratio of diesel and air. Its heat source structure is mainly achieved through pressure atomization, rotary cup atomization, medium atomization and other methods. Although diesel stoves are gradually replaced by electromagnetic stoves and gas stoves in the civilian market due to their high costs, and the current market share of diesel stoves in the civilian market is less than 2%, diesel stoves still have an irreplaceable position in special fields such as outdoor exploration and outdoor rescue.

[0003] The mainstream diesel stoves in the prior art usually use a coaxial single nozzle, and the flame is directly sprayed onto the pot body, using the atmospheric direct combustion method. However, since the volume of the stove body is limited by space, if the power is to be increased, the nozzle model and the fan size need to be increased accordingly. After the nozzle is enlarged, the length and width of the flame will also increase accordingly, causing the atomized oil molecules to be directly sprayed onto the bottom of the pot and unable to burn completely, thus forming carbon deposits. As time goes by, the thermal efficiency decreases and the fuel consumption increases. Therefore, a diesel stove that can improve thermal efficiency and is safe and stable is developed to solve the problem that the existing diesel stoves cannot burn completely when the firepower is increased, and carbon deposits are generated, resulting in high consumption and low thermal efficiency.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a diesel combustion unit with a rotating nozzle and a multi-point injection diesel stove.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] On the one hand, the present invention provides a diesel combustion unit with a rotating nozzle, including a nozzle, wherein the nozzle includes a conical base, a conical rotating head matched with the conical base, the bottom of the conical rotating head is rotatably fixed to the inner bottom of the conical base, the conical rotating head is provided with a plurality of oil grooves inclined at a certain angle and extending spirally from the bottom of the cone along the conical surface to the top of the cone, and the outer bottom of the conical base is also provided with a diesel pump system that drives the conical rotating head to rotate by delivering diesel into the oil groove; the angle between the oil groove and the horizontal plane is 50-30°.

[0008] Specifically, the cross section of the oil-passing groove gradually decreases as it spirally extends from the cone bottom along the cone surface to the cone top, so as to facilitate atomization of the diesel when it is sprayed out.

[0009] Specifically, a connecting column adapted to the inner bottom of the conical base is fixedly provided at the bottom of the conical rotating head, and the connecting column is connected to the inner bottom of the conical base through a double bearing, and the connecting column has an interference fit with the inner circle of the double bearing, and the inner bottom of the conical base has an interference fit with the outer circle of the double bearing.

[0010] Specifically, the diesel pump system includes an oil outlet pipe with one end connected to the diesel pump and the other end connected to the outer bottom of the conical base. The diesel pump is also provided with an oil inlet pipe connected to the oil storage device.

[0011] Specifically, the bottom of the conical base is also provided with an oil inlet connected to the oil outlet pipe.

[0012] Specifically, the top of the conical base is provided with an arc structure which is bent toward the conical rotating head and is convenient for gathering the sprayed diesel.

[0013] Specifically, the material of the conical rotating head and the conical base is a lightweight high-temperature resistant alloy or ceramic.

[0014] On the other hand, the present invention provides a multi-point injection diesel stove, comprising a stove body for supporting a pot body, wherein a plurality of diesel combustion units facing the pot body and used for heating the pot body are evenly arranged around the stove body.

[0015] Specifically, an air inlet is arranged on the stove body in the circumference of each nozzle, and a wind tube connected with the air inlet is fixedly arranged on the stove body, and a fan is arranged at one end of the wind tube away from the stove body.

[0016] Specifically, the blowing direction of each fan is consistent with the burning direction of the nozzle, and the angle between the burning direction of the nozzle and the stove body is α, and α is 75-90°.

[0017] Specifically, an electronic lighter is provided next to each nozzle, and the electronic lighter is fixed on the stove body.

[0018] Specifically, a base for fixing and supporting the stove body is provided at the bottom of the stove body.

[0019] Specifically, the diesel pump, the fan, and the electronic igniter are all controlled by a controller.

[0020] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0021] 1. Improve combustion effect: The design of the rotating nozzle helps to improve the atomization effect of diesel, making the combustion more complete, reducing the emission of harmful gases, and making the bottom of the pot heated more evenly.

[0022] 2. Reduce the formation of carbon deposits: Through the design of the rotating nozzle, the diesel can be fully atomized before combustion, which improves the completeness of combustion, reduces the formation of carbon deposits, and extends the service life of the diesel stove.

[0023] 3. Improve thermal efficiency: Multiple diesel combustion units are evenly distributed around the stove body, making the heat distribution more uniform, improving thermal efficiency and reducing fuel waste.

[0024] 4. Easy to adjust the firepower: Through multiple independent nozzles, the size of the nozzle can be adjusted as needed, so as to achieve fine adjustment of the firepower to meet different cooking needs.

[0025] 5. Compact structure: The diesel pump is installed in the air duct, which not only saves space, but also simplifies the overall structure and facilitates installation and maintenance.

[0026] 6. Intelligent control: The controller realizes automatic control of diesel pump, fan and electronic igniter, which improves the convenience and safety of use.

[0027] To sum up, the multi-point injection diesel stove provided by the present invention has the advantages of improving thermal efficiency, reducing carbon deposit formation, safety and stability, easy adjustment of firepower, improved combustion effect, compact structure, easy operation and intelligent control. It is an efficient heating appliance suitable for special environments such as field exploration and field rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are incorporated in and constitute a part of this specification and, together with the description, serve to explain the principles of the present invention.

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 This is a schematic cross-sectional view of the diesel combustion unit and the fan of the present invention;

[0031] Figure 2 It is a schematic diagram of the cross-sectional structure of the nozzle of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the multi-point injection diesel stove of the present invention.

[0033] Among them: 1 is the pot body; 2 is the stove body; 21 is the air inlet; 3 is the nozzle; 31 is the conical rotating head; 32 is the conical base; 33 is the oil trough; 34 is the double bearing; 35 is the oil inlet; 4 is the diesel pump system; 41 is the diesel pump; 42 is the oil outlet pipe; 43 is the oil inlet pipe; 5 is the fan; 6 is the base; 7 is the air duct. DETAILED DESCRIPTION

[0034] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are only examples consistent with some aspects of the present invention as detailed in the appended claims.

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] Example 1

[0037] See also Figure 1-2 As shown, the present embodiment provides a diesel combustion unit with a rotating nozzle, including a nozzle 3, wherein the nozzle 3 includes a conical base 32, and a conical rotating head 31 matched with the conical base, wherein the bottom of the conical rotating head 31 is rotatably fixed to the inner bottom of the conical base 32, and the conical rotating head 31 is provided with 8 oil grooves 33 inclined at a certain angle and extending spirally from the bottom of the cone along the conical surface to the top of the cone, and the outer bottom of the conical base 32 is also provided with a diesel pump system 4 for driving the conical rotating head 31 to rotate by feeding diesel into the oil groove 33, and the angle between the oil groove and the horizontal plane is 50-30°, preferably 45°.

[0038] Specifically, a connecting column adapted to the inner bottom of the conical base 32 is fixedly provided at the bottom of the conical rotating head 31, and the connecting column is connected to the inner bottom of the conical base 32 through a double bearing 34, and the connecting column has an interference fit with the inner circle of the double bearing 34, and the inner bottom of the conical base 32 has an interference fit with the outer circle of the double bearing 34.

[0039] Specifically, the diesel pump system 4 includes an oil outlet pipe 42 connected to the diesel pump 41 at one end and connected to the outer bottom of the conical base 32 at the other end. The diesel pump 41 is also provided with an oil inlet pipe 43 connected to the oil storage device.

[0040] Specifically, an oil inlet 35 connected to the oil outlet pipe 42 is formed at the bottom of the conical base 32 .

[0041] Specifically, the top of the conical base 32 is provided with an arc structure that is bent toward the conical rotating head 31 and is convenient for gathering the sprayed diesel.

[0042] Specifically, the material of the conical rotating head 31 and the conical base 32 is a light high-temperature resistant alloy or ceramic.

[0043] Example 2

[0044] See also Figure 3 As shown, this embodiment provides a multi-point injection diesel stove, including a stove body 2 for supporting a pot body 1, wherein four diesel combustion units are evenly arranged around the stove body 2 and are provided at the bottom thereof facing the pot body 1 and used for heating the pot body 1.

[0045] Specifically, an air inlet 21 is provided on the stove body 2 in the circumference of each nozzle 3 , and a wind tube 7 connected with the air inlet 21 is fixedly provided on the stove body 2 . A fan 5 is provided at one end of the wind tube 7 away from the stove body 2 .

[0046] Specifically, the blowing direction of each of the fans 5 is consistent with the combustion direction of the nozzles 3 .

[0047] Specifically, an electronic lighter is provided beside each of the nozzles 3 , and the electronic lighter is fixed on the stove body 2 .

[0048] Specifically, a base 6 for fixing and supporting the stove body 2 is provided at the bottom.

[0049] Specifically, the diesel pump 41, the fan 5, and the electronic igniter are all controlled by a controller.

[0050] Due to multi-point injection, the size of the nozzle 3 can be changed in this embodiment. The small-sized nozzle 3 has a low unit oil injection volume and a short flame length. The outer edge of the flame heats the surface of the bottom of the pot, and carbon deposits are not easily formed. The multi-point arrangement allows the pot body 1 to be heated evenly, and is not easily sticky or deformed due to local high temperature.

[0051] This embodiment also provides a method for using a multi-point injection diesel stove, which is as follows:

[0052] See also Figure 1-Figure 3 As shown, the controller controls the diesel pump 41 to open, so that the diesel oil enters the diesel pump 41 from the oil storage device through the oil inlet pipe 43, and then enters the inner bottom of the conical base 32 from the oil outlet pipe 42 and the oil inlet 35 in sequence after being pressurized by the diesel pump 41, and then passes through 8 oil grooves 33 and is sprayed out from the top of the nozzle 3. At the same time, after the diesel oil passes through the spiral oil groove 33, the conical rotating head 31 starts to rotate under the action of pressure;

[0053] At this time, the controller controls the electronic igniter to ignite the ejected diesel. Driven by the conical rotating head 31, the burning flame also starts to rotate, increasing the heating area of ​​the bottom of the pot; the controller also controls the fan 5 to start rotating to let air enter the stove body from the air inlet 21, so that the diesel can be fully burned.

[0054] Since each diesel combustion unit is supplied with air independently and the pot body 1 is heated from different directions, uniform air supply can be achieved, thus ensuring uniform heat of the flame and preventing uneven heating of the pot body 1; the flame is sprayed from the bottom and the side in a circular array at a certain angle to achieve multi-point spraying, and the original single-point heating of the bottom is changed into circular multi-point heating. The flame and the high-temperature flue gas form convection, covering the entire heating surface, heating quickly, and greatly reducing carbon deposits.

[0055] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0056] It should be understood that the present invention is not limited to what has been described above and that various modifications and changes may be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A diesel combustion unit with a rotating nozzle, characterized in that: The nozzle (3) comprises a conical base (32), a conical rotating head (31) matched with the conical base, the bottom of the conical rotating head (31) is rotatably fixed to the inner bottom of the conical base (32), the conical rotating head (31) is provided with a plurality of oil passage grooves (33) inclined at a certain angle and extending spirally from the bottom of the cone along the conical surface to the top of the cone, and the outer bottom of the conical base (32) is also provided with a diesel pump system (4) for driving the conical rotating head (31) to rotate by feeding diesel into the oil passage grooves (33); A connecting column adapted to the inner bottom of the conical base (32) is fixedly provided at the bottom of the conical rotating head (31), and the connecting column is connected to the inner bottom of the conical base (32) via a double bearing (34); The diesel pump system (4) comprises an oil outlet pipe (42) connected to the diesel pump (41) at one end and connected to the outer bottom of the conical base (32) at the other end. The diesel pump (41) is also provided with an oil inlet pipe (43) connected to the oil storage device.

2. The diesel combustion unit according to claim 1, characterized in that: The bottom of the conical base (32) is also provided with an oil inlet (35) which is connected to the oil outlet pipe (42).

3. The diesel combustion unit according to claim 1, characterized in that: The top of the conical base (32) is provided with an arc structure that bends toward the conical rotating head (31) and facilitates gathering and spraying diesel fuel.

4. The diesel combustion unit according to claim 1, characterized in that: The material of the conical rotating head (31) and the conical base (32) is a light high-temperature resistant alloy or ceramic.

5. A multi-point injection diesel stove, characterized in that: The invention comprises a stove body (2) for supporting a pot body (1), wherein a plurality of diesel combustion units as claimed in any one of claims 1 to 4 are evenly arranged around the stove body (2) and face the pot body (1) and are used to heat the pot body (1).

6. The multi-point injection diesel stove according to claim 5, characterized in that: An air inlet (21) is provided on the circumference of each nozzle (3) and located on the stove body (2); a wind tube (7) connected to the air inlet (21) is fixedly provided on the stove body (2); and a fan (5) is provided at one end of the wind tube (7) away from the stove body (2).

7. The multi-point injection diesel stove according to claim 6, characterized in that: The blowing direction of each fan (5) is consistent with the burning direction of the nozzle (3).

8. The multi-point injection diesel stove according to claim 5, characterized in that: An electronic lighter is provided beside each nozzle (3), and the electronic lighter is fixed on the stove body (2).

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