Multivariable rotational flow body suitable for oil injection nozzle of combustor

Abstract

The utility model provides a multivariable rotational flow body suitable for a burner oil nozzle, which comprises a cylindrical body, the outer side of the body is provided with a plurality of first concave surfaces, an arc-shaped surface is arranged between two concave surfaces, the top and the bottom of the body are respectively provided with a second concave surface and a third concave surface, and the arc-shaped surface is provided with a plurality of second concave surfaces and a plurality of third concave surfaces. A plurality of first internally-cutting grooves are formed in the outer side of the second inwards-concave face, one end of each first internally-cutting groove is communicated with the second inwards-concave face, the other end of each first internally-cutting groove is connected with the first inwards-concave face, a plurality of second internally-cutting grooves are formed in the outer side of the third inwards-concave face, and the two ends of each second internally-cutting groove are connected with the third inwards-concave face and the first inwards-concave face respectively. In the rotational flow, the output quantity of heavy oil can be adjusted by adjusting the connecting surface of the body and the atomizing sheet, the use is convenient, and the cost for replacing the rotational flow body can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of burner oil nozzle, especially to a multivariable swirl body suitable for burner oil nozzle. BACKGROUND

[0002] ‌Burner oil nozzle is an important component in the burner, mainly used for converting fuel oil into mist and spraying it into the combustion chamber to achieve efficient combustion. Burner oil nozzle is usually made of stainless steel, with multiple spray angles and patterns to meet different combustion needs. Common spray angles include 30 degrees, 45 degrees, 60 degrees and 80 degrees, and spray shapes include hollow, solid and semi-solid. The oil nozzle is generally composed of an oil nozzle shell, a filter core, a swirl body and an atomizing sheet. The swirl body is used to control the output of heavy oil, and generally has multiple grooves for heavy oil flow on the swirl body. The more grooves designed, the greater the output. However, the amount of heavy oil required for combustion is not fixed, and different swirl bodies need to be replaced when different oil quantities are required, which is cumbersome and costly.

[0003] Therefore, it is necessary to design a multivariable swirl body suitable for burner oil nozzle. SUMMARY

[0004] In view of the technical defects in the background art, the utility model provides a multivariable swirl body suitable for burner oil nozzle, which solves the above technical problems and meets the actual needs. The specific technical scheme is as follows:

[0005] A multivariable swirl body suitable for burner oil nozzle, comprising a body, the body is cylindrical, a plurality of first inner concave surfaces are arranged on the outer side of the body, an arc surface is arranged between two inner concave surfaces, a second inner concave surface and a third inner concave surface are arranged on the top and bottom of the body respectively, a plurality of first inner cutting grooves are arranged on the outer side of the second inner concave surface, one end of the first inner cutting groove is communicated with the second inner concave surface and the other end is connected with the first inner concave surface, a plurality of second inner cutting grooves are arranged on the outer side of the third inner concave surface, both ends of the second inner cutting groove are connected with the third inner concave surface and the first inner concave surface respectively.

[0006] Further, the number of second inner cutting grooves is greater than the number of first inner cutting grooves.

[0007] Further, the middle part of the second inner concave surface and the third inner concave surface is provided with a conical protrusion.

[0008] Further, the connection between the first inner cutting groove and the second inner concave surface is obliquely tangent.

[0009] Further, the connection between the second inner cutting groove and the third inner concave surface is obliquely tangent.

[0010] Compared with the prior art, the multivariable rotational flow body suitable for the oil nozzle of the burner has the following beneficial effects:

[0011] The second inner concave surface and the third inner concave surface are arranged on the body of the multivariable rotational flow body suitable for the oil nozzle of the burner, and are used for rotatingly feeding heavy oil into the atomizing sheet; the first inner cutting groove and the second inner cutting groove arranged on the second inner concave surface and the third inner concave surface are inconsistent in quantity, and can be used for feeding heavy oil into the second inner concave surface or the third inner concave surface; the output of the heavy oil can be adjusted by adjusting the connecting surface of the body and the atomizing sheet, and the cost of replacing the rotational flow body can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 The figure is a structural schematic view of the multivariable rotational flow body suitable for the oil nozzle of the burner.

[0013] Fig. 2 The figure is a bottom view of the multivariable rotational flow body suitable for the oil nozzle of the burner.

[0014] Fig. 3 The figure is a top view of the multivariable rotational flow body suitable for the oil nozzle of the burner.

[0015] 1, the body, 2, the first inner concave surface, 3, the arc surface, 4, the second inner concave surface, 5, the third inner concave surface, 6, the first inner cutting groove, 7, the second inner cutting groove, 8, the conical protrusion. DETAILED DESCRIPTION

[0016] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "middle", "inner" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0017] The embodiments of the utility model are not limited to the following examples, and the utility model relates to the necessary components related to the technical field, and should be regarded as the known technology in the technical field, which can be known and mastered by the technical personnel in the technical field.

[0018] Referring to Figs. 1-3 A kind of multivariate swirl body suitable for burner oil nozzle, including body 1, body 1 is used to be connected with filter core and atomizing sheet, the body 1 is cylindrical, the outside of the body 1 is provided with several first inner concave surface 2, first inner concave surface 2 is used for the flow of heavy oil, middle part is semicircular section, flow is more smooth, arc surface 3 is provided between two the inner concave surface, arc surface 3 is used to abut with other components of oil nozzle, the top and bottom of the body 1 are provided with second inner concave surface 4 and third inner concave surface 5 respectively, second inner concave surface 4 and third inner concave surface 5 are used to rotate heavy oil, and heavy oil is sent into atomizing sheet to be atomized, can accelerate the flow rate of heavy oil.The outside of the second inner concave surface 4 is provided with several first inner cut grooves 6, and the first inner cut groove 6 is used to send heavy oil obliquely into the second inner concave surface 4 to form vortex, one end of the first inner cut groove 6 is communicated with the second inner concave surface 4 and the other end is connected with the first inner concave surface 2, and the first inner cut groove 6 can send heavy oil in the first inner cut groove 6 obliquely into the second inner concave surface 4, the outside of the third inner concave surface 5 is provided with several second inner cut grooves 7, and the two ends of the second inner cut groove 7 are connected with the third inner concave surface 5 and the first inner concave surface 2 respectively, and the second inner cut groove 7 can send heavy oil in the first inner cut groove 6 obliquely into the third inner concave surface 5 to form vortex.

[0019] In one embodiment of the utility model, the number of the second inner cut groove 7 is greater than the number of the first inner cut groove 6.When the third inner concave surface 5 is used as output end, heavy oil output is larger, when the second inner concave surface 4 is used as output end, heavy oil output is smaller.

[0020] In one embodiment of the utility model, the middle part of the second inner concave surface 4 and the third inner concave surface 5 is provided with tapered lug 8.Tapered lug 8 can make heavy oil sent into the second inner concave surface 4 or the third inner concave surface 5 rotate along tapered lug 8 and be sent into atomizing sheet through the top of tapered lug 8 to be atomized.

[0021] In one embodiment of the utility model, the first inner cut groove 6 is connected with the second inner concave surface 4 in oblique tangency.The first inner cut groove 6 in oblique tangency can send heavy oil obliquely into the second inner concave surface 4 to form vortex.

[0022] In one embodiment of the utility model, the connection between the second inner groove 7 and the third inner concave surface 5 is oblique tangency. The oblique tangency of the second inner groove 7 can send heavy oil obliquely into the third inner concave surface 5 to form a vortex.

[0023] The utility model discloses a kind of multivariable swirls suitable for burner oil nozzle, second inner concave surface 4 and third inner concave surface 5 are respectively arranged on body 1 for sending heavy oil into atomizing piece rotation, and the number of first inner groove 6 and second inner groove 7 arranged on second inner concave surface 4 and third inner concave surface 5 is inconsistent, can be used to send heavy oil into second inner concave surface 4 or third inner concave surface 5, the output of heavy oil can be adjusted by adjusting the connecting surface of body 1 and atomizing piece, convenient to use, and can reduce the cost of replacing swirl.

[0024] The above is only preferred embodiment of the utility model, it should be pointed out, for the ordinary skill of the prior art, on the premise of not departing from the principle of the utility model, can also make some improvements and refinements, these improvements and refinements also should be regarded as the protection range of the utility model.

Claims

1. A multi-variable swirler for a burner oil nozzle, characterized by, The utility model relates to a kind of cylinder-shaped bodies (1), the outer side of the body (1) is provided with several first inner concave surfaces (2), arc surface (3) is provided between two the inner concave surfaces, the top and bottom of the body (1) is respectively provided with second inner concave surface (4) and third inner concave surface (5), the outer side of the second inner concave surface (4) is provided with several first inner cutting grooves (6), one end of the first inner cutting groove (6) is communicated with second inner concave surface (4) and the other end is connected with first inner concave surface (2), the outer side of the third inner concave surface (5) is provided with several second inner cutting grooves (7), two ends of the second inner cutting groove (7) are respectively connected with third inner concave surface (5) and first inner concave surface (2).

2. The multi-variable swirler suitable for use in a burner oil nozzle according to claim 1, wherein, The number of the second inner cutting grooves (7) is greater than the number of the first inner cutting grooves (6).

3. The multi-variable swirler suitable for use in a burner oil nozzle according to claim 1, wherein, The middle part of the second inner concave surface (4) and the third inner concave surface (5) is provided with a tapered protrusion (8).

4. The multi-variable swirler adapted for use in a burner oil nozzle according to claim 1, wherein, The first inner cutting groove (6) is connected with the second inner concave surface (4) in a slanting tangent manner.

5. The multi-variable swirler for use in a burner oil nozzle according to claim 1, wherein, The second inner cutting groove (7) is connected with the third inner concave surface (5) in a slanting tangent manner.

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