Combustion engine

Abstract

The utility model belongs to the technical field of burner equipment, and provides a burner which comprises a burner body and an air inlet cage arranged at an air inlet of the burner body. The air inlet cover cage comprises a cover shell connected with the machine body and a filtering assembly arranged in the cover shell. The cover shell comprises a connector part arranged at the air inlet of the machine main body and a spherical cover part connected with the connector part, the spherical cover part is in a spherical shell shape and is provided with an air inducing opening with a downward opening, the air inducing opening is communicated with the air inlet of the machine main body, and the filtering assembly is arranged in the connector part. According to the burner, the air inlet cover cage structure is arranged at the air inlet, the air inlet flow direction is reasonably guided, air is promoted to be efficiently and stably sucked into the burner body for burning, meanwhile, dust, particulate matter and the like can be prevented from being sucked into the inner cavity of the burner body, impurities contained in the sucked air are reduced, and therefore the burning efficiency is improved, and the service life of the burner is prolonged. And normal and stable operation of the burner is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of burner equipment, in particular to a burner. Background Art

[0002] At present, the air inlet of the burners on the market is generally installed vertically on the casing of the burner, so as to directly draw air in horizontally. However, due to the built-in fan of the burner, the suction and negative pressure generated by the air inlet are relatively large, causing the surrounding dust and particulate matter to be directly sucked into the combustion chamber of the burner through the air inlet, which greatly reduces the combustion efficiency and there is a risk of producing harmful gases during combustion, which seriously affects the normal use of the burner; although some existing burners have added filtering devices to the air inlet, since the air inlet is still a straight-through pipe, dust and particulate impurities will still enter the pipe and accumulate at the entrance, resulting in insufficient air intake, so that the fuel in the burner cannot be fully and completely burned, affecting the combustion and heating efficiency.

[0003] In addition, existing drying equipment generally requires the installation of multiple burners at intervals. Multiple burners all exhaust air in parallel in the horizontal direction, which can easily cause large-scale turbulence, impose large restrictions on the equipment installation space and installation site requirements, and have a large impact on the air intake volume between adjacent burners, and cannot effectively ensure the balanced operation of multiple burners.

[0004] Therefore, it is necessary to design a burner with stable air intake and high combustion efficiency. Summary of the invention

[0005] In order to solve the above technical problems, the utility model proposes a burner, which arranges an air intake cage structure at the air inlet to reasonably guide the air intake flow direction, promotes efficient and stable air intake into the machine body for combustion, and at the same time avoids the intake of dust, particulate matter, etc. into the inner cavity of the machine body, reduces the impurities contained in the inhaled air, thereby improving the combustion efficiency and ensuring the normal and stable operation of the burner.

[0006] The technical solution of the utility model is:

[0007] The utility model provides a combustion machine, comprising a machine body and an air intake cage arranged at the air inlet of the machine body;

[0008] The air intake cage comprises a cover body connected to the machine body, and a filter assembly arranged inside the cover body;

[0009] The cover body includes an interface portion arranged at the air inlet of the machine body, and a spherical cover portion connected to the interface portion. The spherical cover portion is in the shape of a spherical shell and is provided with an air inlet opening facing downward. The air inlet is connected to the air inlet of the machine body, and the filter assembly is arranged in the interface portion.

[0010] Preferably, the maximum inner diameter of the ball cover portion is greater than the inner diameter of the interface portion.

[0011] Preferably, an oblique narrow opening is provided at the internal connection position between the ball cover portion and the interface portion, and the diameter of the oblique narrow opening gradually decreases from the ball cover portion to the interface portion.

[0012] Preferably, the center of the spherical cover portion is located on the axis of the interface portion, and the air inlet is located below the axis of the interface portion.

[0013] Preferably, the filter assembly comprises a baffle ring and a filter ring arranged in the interface portion, the baffle ring is arranged close to the ball cover portion, and the filter ring is arranged close to the air inlet of the machine body;

[0014] The blade baffle ring is provided with a plurality of blade bars distributed at intervals, and the filter screen ring is provided with a filter screen.

[0015] Preferably, the blade is tilted downward, and the angle between the blade and the axis of the interface portion is between 30° and 60°.

[0016] Preferably, the baffle ring and the filter ring are both coaxially arranged with the interface portion, and the baffle ring and the filter ring are both detachably embedded in the inner cavity of the interface portion.

[0017] Preferably, a sealing ring edge is provided at one end of the interface portion close to the spherical cover portion, and the outer diameter of the sealing ring edge is greater than the maximum outer diameter of the spherical cover portion.

[0018] Preferably, the ball cover portion and the interface portion are connected in an integrated structure.

[0019] Compared with the prior art, the utility model has the following advantages and effects:

[0020] (1) A housing body including a spherical cover portion is used, and the cover portion is provided with an air inlet opening facing downward, which can reasonably guide the inhaled air, reduce the content of impurities such as dust and particulate matter in the air inhaled at the air inlet, ensure sufficient air intake, improve combustion efficiency, and at the same time reduce the impact on the surrounding airflow, avoid large-scale turbulence, and improve the stability and smoothness of the air intake;

[0021] (2) A filter assembly including a baffle ring and a filter ring is used. The baffle ring can block and filter particulate impurities with larger particle sizes to prevent them from being sucked into the inner cavity of the machine body and causing blockage. The filter ring can filter out dust impurities with smaller particle sizes to prevent them from being sucked into the machine body and burning to produce polluting gases, thereby ensuring the normal and efficient operation of the burner, extending the service life of the burner, and improving the utilization rate of fuel and the thermal efficiency of combustion;

[0022] (3) The oblique narrow opening provided at the connection position between the ball cover and the interface can promote the inhaled air to flow from the inner cavity of the ball cover to the inner cavity of the interface, thereby avoiding the formation of turbulence inside the ball cover and increasing the air flow speed, thereby improving the combustion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the burner in Example 1 of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the air intake cage in the burner in Example 1 of the utility model;

[0025] Figure 3 Another structural schematic diagram of the air intake cage in the burner in Example 1 of the utility model;

[0026] Figure 4 This is another structural schematic diagram of the air intake cage in the burner in Example 1 of the utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the cover shell of the burner in Example 2 of the utility model.

[0028] Figure numerals: 1, machine body; 2, air intake cage; 21, cover body; 211, interface part; 212, ball cover part; 2121, air inlet; 213, oblique narrow mouth; 214, sealing ring edge; 22, filter assembly; 221, blade ring; 2211, blade bar; 222, filter ring. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the present invention, the present invention is now further described in conjunction with specific implementation methods.

[0030] Embodiment 1:

[0031] like Figure 1~Figure 4 As shown, the utility model provides a combustion engine, comprising an engine body 1 and an air intake cage 2 arranged at an air inlet of the engine body 1 .

[0032] Among them, the machine body 1 is provided with an air inlet connected to the outside for inhaling air, an air outlet connected to the hot air pipe or the radiation pipe, and a fan is provided inside the machine body 1, which can inhale the outside air into the machine body 1 through the air inlet, and introduce the generated hot air into the hot air pipe or the radiation pipe through the air outlet. The machine body 1 is also provided with a gas inlet connected to the gas pipeline, and a line interface connected to the internal ignition switch, ignition detector and other electronic control devices. It should be noted that the internal structure of the burner is a mature prior art in this field, and is not an improvement point of the utility model, so it will not be repeated here. For details, please refer to the contents of the existing patents CN 215951397 U A low-nitrogen burner, CN 215446457 U A burner and other documents.

[0033] like Figure 2 , Figure 3 As shown, the air inlet cage 2 includes a cover shell 21 connected to the machine body 1, and a filter assembly 22 arranged inside the cover shell 21. The cover shell 21 includes a tubular interface portion 211 arranged at the air inlet of the machine body 1, and a spherical cover portion 212 connected to the interface portion 211; the spherical cover portion 212 is in the shape of a spherical shell, and is provided with an air inlet 2121 opening downward, the center of the spherical cover portion 212 is located on the axis of the interface portion 211, the air inlet 2121 is connected to the air inlet of the machine body 1, and the filter assembly 22 is arranged in the interface portion 211 of the cover shell 21.

[0034] Combination Figure 2 , Figure 4 As shown, the maximum inner diameter of the ball cover part 212 is greater than the inner diameter of the interface part 211, so as to increase the amount of air sucked into the inner cavity of the ball cover part 212 through the air inlet 2121. At the same time, during the air flow from the ball cover part 212 to the interface part 211, the pipe diameter is reduced and the flow rate is increased, thereby improving the air intake and air induction efficiency. The air inlet 2121 is located below the axis of the interface part 211, that is, the highest vertical position of the air inlet 2121 is lower than the height position of the axis of the interface part 211, so that a shielding area is formed above the air inlet 2121 of the ball cover part 212 to prevent impurities above it from being sucked into the inside of the cover body 21.

[0035] like Figure 1 , Figure 2 As shown, a sealing ring 214 is provided at one end of the interface portion 211 close to the ball cover portion 212, and the outer diameter of the sealing ring 214 is larger than the maximum outer diameter of the ball cover portion 212, that is, the projection of the sealing ring 214 along the axis direction of the interface portion 211 is larger than the projection of the ball cover portion 212. The sealing ring 214 can seal the connection position between the air inlet cage 2 and the air inlet of the machine body 1 to prevent the outside air from directly entering the inside of the machine body 1 through the air inlet of the machine body 1.

[0036] Optionally, in some embodiments, the ball cover portion 212 and the interface portion 211 are connected in an integrated structure.

[0037] refer to Figure 2 , Figure 3 , Figure 4 As shown, the filter assembly 22 includes a baffle ring 221 and a filter ring 222 arranged in the interface part 211 of the cover body 21. The filter ring 222 is arranged close to the air inlet of the machine body 1, and the baffle ring 221 is arranged close to the ball cover part 212; the baffle ring 221 and the filter ring 222 are adapted to the inner cavity of the interface part 211, and are coaxially arranged with the interface part 211. The baffle ring 221 and the filter ring 222 are both detachably embedded in the inner cavity of the interface part 211, so as to be disassembled for cleaning or replacement.

[0038] The blade ring 221 is provided with a plurality of blade strips 2211 evenly spaced, and the blade strips 2211 are arranged to be tilted downward, and the angle between the blade strips 2211 and the axis of the interface portion 211 is 45°, which can effectively block impurities such as particles with larger particle sizes or flying insects. The filter ring 222 is provided with a filter for fine filtration, which can filter the inhaled air again to prevent some fine particles or dust from being inhaled into the machine body 1 and affecting the normal operation of the burner.

[0039] Embodiment 2:

[0040] For Example 2 of the utility model, Figure 5 Note that description of parts that are not different from those in Embodiment 1 will be omitted and will be given the same reference numerals.

[0041] like Figure 5 As shown, the utility model involves a burner, wherein an oblique narrow opening 213 is provided at the internal connection position of the ball cover part 212 and the interface part 211, and the diameter of the oblique narrow opening 213 gradually decreases and narrows from the inner cavity of the ball cover part 212 to the inner cavity of the interface part 211, so that the air in the inner cavity of the ball cover part 212 can flow to the inner cavity of the interface part 211 in an orderly manner through the guiding effect of the oblique narrow opening 213, avoiding the formation of turbulence at the connection position between the ball cover part 212 and the interface part 211, while increasing the air circulation speed, thereby improving the air intake efficiency.

[0042] To sum up, the burner provided by the utility model, by arranging an air intake cage structure at the air inlet, reasonably guides the incoming air flow, promotes the efficient and stable inhalation of air into the machine body for combustion, and at the same time avoids the inhalation of dust, particulate matter, etc. into the inner cavity of the machine body, reduces the impurities contained in the inhaled air, thereby improving the combustion efficiency and ensuring the normal and stable operation of the burner.

[0043] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A burner, characterized in that: It comprises a machine body (1), and an air intake cage (2) arranged at the air inlet of the machine body (1); The air intake cage (2) comprises a cover body (21) connected to the machine body (1), and a filter assembly (22) arranged inside the cover body (21); The cover body (21) comprises an interface portion (211) arranged at the air inlet of the machine body (1), and a spherical cover portion (212) connected to the interface portion (211); the spherical cover portion (212) is in the shape of a spherical shell and is provided with an air inlet (2121) opening downward; the air inlet (2121) is connected to the air inlet of the machine body (1); and the filter assembly (22) is arranged in the interface portion (211).

2. The burner according to claim 1, characterized in that: The maximum inner diameter of the ball cover portion (212) is greater than the inner diameter of the interface portion (211).

3. The burner according to claim 2, characterized in that: An oblique narrow opening (213) is provided at the internal connection position between the ball cover portion (212) and the interface portion (211), and the diameter of the oblique narrow opening (213) gradually decreases from the ball cover portion (212) to the interface portion (211).

4. The burner according to claim 1, characterized in that: The center of the spherical cover portion (212) is located on the axis of the interface portion (211), and the air inlet (2121) is located below the axis of the interface portion (211).

5. The burner according to claim 1, characterized in that: The filter assembly (22) comprises a blade baffle ring (221) and a filter ring (222) arranged in the interface portion (211), the blade baffle ring (221) being arranged close to the ball cover portion (212), and the filter ring (222) being arranged close to the air inlet of the machine body (1); The blade baffle ring (221) is provided with a plurality of blade strips (2211) distributed at intervals, and the filter screen ring (222) is provided with a filter screen.

6. The burner according to claim 5, characterized in that: The blade strip (2211) is arranged to be tilted downward, and the angle between the blade strip and the axis of the interface portion (211) is between 30° and 60°.

7. The burner according to claim 5, characterized in that: The baffle ring (221) and the filter ring (222) are both coaxially arranged with the interface portion (211), and the baffle ring (221) and the filter ring (222) are both detachably embedded in the inner cavity of the interface portion (211).

8. The burner according to claim 1, characterized in that: A sealing ring edge (214) is provided at one end of the interface portion (211) close to the spherical cover portion (212); the outer diameter of the sealing ring edge (214) is greater than the maximum outer diameter of the spherical cover portion (212).

9. The burner according to claim 1, characterized in that: The ball cover portion (212) and the interface portion (211) are connected in an integrated structure.

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