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

Abstract

The utility model 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 stove has the advantages of improving heat efficiency, reducing formation of carbon deposition, facilitating firepower adjustment, improving combustion effect, being intelligent in control and the like, and is an efficient heating appliance suitable for special environments such as field exploration, field rescue and the like.

Description

Technical Field

[0001] The utility model 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. Background Art

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

[0003] Mainstream diesel stoves in the prior art usually adopt a coaxial single nozzle, and the flame is directly sprayed onto the cookware, using the method of direct combustion in the atmosphere. However, due to the space limitation of the stove body volume, if the power is to be increased, it is necessary to correspondingly increase the nozzle model and the size of the fan. After the nozzle is increased, the length and width of the flame will also increase accordingly, resulting in the atomized oil molecules being directly sprayed onto the bottom of the pot and unable to burn completely, thus forming carbon deposits. Over time, the thermal efficiency decreases and fuel consumption increases. Therefore, it is necessary to develop a diesel stove that can improve the thermal efficiency and is safe and stable to solve the problems that the existing diesel stoves cannot burn completely when the firepower is increased, resulting in carbon deposits and low thermal efficiency and high consumption.

[0004] In view of this, the present utility model is specifically proposed. Content of the Utility Model

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

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] On the one hand, the present utility model provides a diesel combustion unit with a rotary nozzle, including a nozzle, the nozzle includes a conical base, a conical rotary head adapted to the conical base, the bottom of the conical rotary head is rotatably fixed to the inner bottom of the conical base, the conical rotary head is provided with a plurality of oil passing grooves that are inclined at a certain angle and spiral from the cone bottom along the conical surface to the cone top, and a diesel pump system for driving the conical rotary head to rotate by sending diesel into the oil passing grooves is further provided at the outer bottom of the conical base; the angle between the oil passing groove and the horizontal plane is 50 - 30°.

[0008] Specifically, the cross-section of the oil passing groove gradually decreases when it spirals from the cone bottom along the conical surface to the cone top, which is convenient for diesel to be atomized when 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. The connecting column is connected to the inner bottom of the conical base through a double bearing. The connecting column is in interference fit with the inner circle of the double bearing, and the inner bottom of the conical base is in 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, an oil inlet is further opened at the bottom of the conical base and is communicated with the oil outlet pipe.

[0012] Specifically, an arc structure that bends towards the conical rotating head and is convenient for gathering and spraying diesel is provided at the top of the conical base.

[0013] Specifically, the conical rotating head and the conical base are made of one of lightweight high-temperature resistant alloys and ceramics.

[0014] On the other hand, the present utility model provides a multi-point injection diesel stove, which includes a stove body for supporting a pot body. A plurality of diesel combustion units for heating the pot body are uniformly arranged circumferentially on the stove body and face the pot body.

[0015] Specifically, an air inlet is provided circumferentially on each nozzle and on the stove body. A wind cylinder communicated with the air inlet is fixedly provided on the stove body. A blower is provided at one end of the wind cylinder away from the stove body.

[0016] Specifically, the blowing direction of each blower is the same as the combustion direction of the nozzle. The angle between the combustion direction of the nozzle and the stove body is α, and α is 75 - 90°.

[0017] Specifically, an electronic igniter is provided beside each nozzle, and the electronic igniter is fixed on the stove body.

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

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

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

[0021] 1. Improve the 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 heat more evenly.

[0022] 2. Reduce carbon deposition formation: Through the design of the rotary nozzle, the diesel can be fully atomized before combustion, improving the completeness of combustion, reducing the formation of carbon deposition, and extending the service life of the diesel stove.

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

[0024] 4. Facilitate firepower adjustment: Through multiple independent nozzles, the size of the nozzles can be adjusted according to needs, thereby achieving fine adjustment of the firepower to meet different cooking requirements.

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

[0026] 6. Intelligent control: Through the controller, the automation control of the diesel pump, fan, and electronic igniter is realized, improving the convenience and safety of use.

[0027] In summary, the multi-point injection diesel stove provided by the present utility model has the advantages of improving thermal efficiency, reducing carbon deposition formation, being safe and stable, facilitating firepower adjustment, improving combustion effect, having a compact structure, being easy to operate, and intelligent control. It is an efficient heating appliance suitable for special environments such as wilderness exploration and wilderness rescue. Brief Description of the Drawings

[0028] The drawings here are incorporated into the specification and form a part of this specification, and are used together with the specification to explain the principle of the present utility model.

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic cross-sectional structure diagram of the diesel combustion unit and the fan of the present utility model;

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

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

[0033] Wherein: 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 passing groove; 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 implementation manners

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

[0035] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the drawings and embodiments.

[0036] Embodiment 1

[0037] See Figure 1-2 As shown, this embodiment provides a diesel combustion unit with a rotating nozzle, including a nozzle 3. The nozzle 3 includes a conical base 32 and a conical rotating head 31 adapted to 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 8 oil passing grooves 33 that are inclined at a certain angle and spiral from the bottom of the cone along the conical surface to the top of the cone. 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 sending diesel into the oil passing grooves 33. The included angle between the oil passing 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. The connecting column is connected to the inner bottom of the conical base 32 through a double bearing 34. The connecting column is in interference fit with the inner circle of the double bearing 34, and the inner bottom of the conical base 32 is in interference fit with the outer circle of the double bearing 34.

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

[0040] Specifically, an oil inlet 35 communicating with the oil outlet pipe 42 is further opened at the bottom of the conical base 32.

[0041] Specifically, an arc structure that bends towards the conical rotating head 31 and is convenient for gathering and spraying diesel is provided at the top of the conical base 32.

[0042] Specifically, the conical rotating head 31 and the conical base 32 are made of one of lightweight high-temperature resistant alloys and ceramics.

[0043] Embodiment 2

[0044] See Figure 3 As shown, this embodiment provides a multi-point injection diesel stove, including a stove body 2 for supporting the pot body 1. Four diesel combustion units are evenly arranged in the circumferential direction of the stove body 2, and one is provided at the bottom, 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 circumferential direction of each nozzle 3. A wind cylinder 7 communicated with the air inlet 21 is fixedly provided on the stove body 2, and a fan 5 is provided at one end of the wind cylinder 7 away from the stove body 2.

[0046] Specifically, the blowing direction of each fan 5 is the same as the burning direction of the nozzle 3.

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

[0048] Specifically, a base 6 for fixedly supporting the bottom of the stove body 2 is provided.

[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, in this embodiment, the size and model of the nozzle 3 can be changed. The small-sized nozzle 3 has a low unit fuel injection volume, a short flame length, and the outer edge of the flame heats the bottom surface of the pot, making it not easy to form carbon deposits. With a multi-point layout, the pot body 1 is heated evenly, not easy to stick to the pot, and not easy to deform due to local high temperature.

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

[0052] See Figures 1-3 As shown, the controller controls the diesel pump 41 to open, prompting diesel to enter the diesel pump 41 from the oil storage device through the oil inlet pipe 43, and then after being pressurized by the diesel pump 41, it enters the inner bottom of the conical base 32 from the oil outlet pipe 42 and the oil inlet 35 in sequence, and then after passing through 8 oil passing grooves 33, it is ejected from the top of the nozzle 3. At the same time, after the diesel passes through the spiral oil passing grooves 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 introduce air from the air inlet 21 into the stove body, enabling the diesel to burn fully.

[0054] Since each diesel combustion unit supplies air independently and heats the pot body 1 from different directions, it can achieve uniform air supply, ensure uniform heat of the flame, and prevent uneven heating of the pot body 1. The flame is sprayed in a circumferential array at a certain angle from the bottom and the side, realizing multi-point spraying. The original single-point heating at the bottom is changed to circumferential multi-point heating. The flame forms convection with the high-temperature flue gas, covering the entire heating surface, heating rapidly, and greatly reducing carbon deposition.

[0055] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. 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 the above-described content and can be modified and changed without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A diesel combustion unit with a rotary nozzle, characterized in that, It includes a nozzle (3), the nozzle (3) includes a conical base (32), and a conical rotating head (31) adapted to 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) that are inclined at a certain angle and spirally extend from the bottom of the cone along the conical surface to the top of the cone. An oil pump system (4) for driving the conical rotating head (31) to rotate by sending diesel into the oil passage grooves (33) is further provided at the outer bottom of the conical base (32).

2. The diesel combustion unit according to claim 1, wherein 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).

3. The diesel combustion unit according to claim 1, wherein The oil pump system (4) includes an oil outlet pipe (42) with one end connected to an oil pump (41) and the other end connected to the outer bottom of the conical base (32). The oil pump (41) is further provided with an oil inlet pipe (43) connected to an oil storage device.

4. The diesel combustion unit according to claim 3, wherein, An oil inlet (35) communicating with the oil outlet pipe (42) is further opened at the bottom of the conical base (32).

5. The diesel combustion unit according to claim 1, wherein An arc structure that bends towards the conical rotating head (31) and is convenient for gathering and spraying diesel is provided at the top of the conical base (32).

6. The diesel combustion unit according to claim 1, wherein The conical rotating head (31) and the conical base (32) are made of one of lightweight high-temperature resistant alloys and ceramics.

7. A multi-point injection diesel stove, characterized in that, It includes a stove body (2) for supporting a pot body (1). A plurality of diesel combustion units as described in any one of claims 1-6 are evenly arranged circumferentially on the stove body (2) and are used for heating the pot body (1).

8. The multi-point injection diesel stove according to claim 7, characterized in that, An air inlet (21) is provided circumferentially of each nozzle (3) and is located on the stove body (2). A wind cylinder (7) communicated with the air inlet (21) is fixedly provided on the stove body (2), and a fan (5) is provided at one end of the wind cylinder (7) away from the stove body (2).

9. The multi-point injection diesel stove according to claim 8, wherein, The blowing direction of each fan (5) is the same as the burning direction of the nozzle (3).

10. The multi-point injection diesel stove according to claim 7, characterized in that, An electronic igniter is provided beside each nozzle (3), and the electronic igniter is fixed on the stove body (2).

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