Cooling water atomizing nozzle with annular cofferdam and multiple groups of positive and negative tangential notch flow channels

Abstract

The present invention relates to the technical field of atomizing nozzles, and in particular to a cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notch flow channels, comprising a main body, a water spray hole being opened on the main body, an annular cofferdam being arranged at one end of the main body, a spray chamber being formed between the inner circumferential wall of the annular cofferdam and the main body, one end of the water spray hole being arranged in the annular cofferdam and being connected to the spray chamber, a notch being opened on the annular cofferdam, the notch extending from the outer circumferential wall of the annular cofferdam to the inner circumferential wall and being connected to the spray chamber. When the cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notch flow channels of the present invention is used, an annular cofferdam is arranged at one end of the main body and a spray chamber is formed between the main body, thereby isolating the high-pressure cooling water from directly impacting the nozzle, the threaded section of the sleeve matching with the water spray hole, and can resist the damage of the hardenability of the chromium-molybdenum steel pipeline by the high-pressure cooling water, and protect the nozzle and the sleeve body.

Description

Technical Field

[0001] The invention relates to the technical field of atomizing nozzles, in particular to a cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notch flow channels. Background Art

[0002] The nozzle is one of the most important components of the combustion equipment. Liquid fuels are generally burned using nozzles, and the quality of the nozzle design has a great impact on the combustion of liquid fuels. The function of the nozzle is to atomize the liquid fuel to form a liquid mist with a very small diameter, so as to increase the contact area between the liquid fuel and the surrounding medium, so as to achieve the purpose of rapid evaporation, mixing and combustion.

[0003] like Figure 1 and 2 As shown, the existing cooling water nozzle has no cofferdam, the design structure is unreasonable, a normal notch is directly processed on the end face of the water inlet side of the nozzle, the atomization effect of the nozzle directly sprayed into the nozzle is poor and the sleeve body is damaged. In the case of poor cooling water atomization, relatively low-temperature water droplets will cause hardenability damage to the chromium-molybdenum steel steam pipe, causing cracks in the pipe, thinning of the wall thickness and other risks, and the safety hazard is very large. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the problems that the existing cooling water nozzle has an unreasonable design structure, the direct injection nozzle has a poor atomization effect and damages the sleeve body, and the safety hazard is very large, a cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notch flow channels is provided.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notch flow channels, including a main body, a water spray hole is opened on the main body, an annular cofferdam is arranged at one end of the main body, an injection cavity is formed between the inner peripheral wall of the annular cofferdam and the main body, one end of the water spray hole is arranged in the annular cofferdam and is connected to the injection cavity, and a notch is opened on the annular cofferdam, and the notch extends from the outer peripheral wall of the annular cofferdam to the inner peripheral wall and is connected to the injection cavity.

[0006] The invention provides an annular cofferdam at one end of the body to form a spray cavity between the body, thereby isolating the high-pressure cooling water from directly impacting the nozzle, the threaded section of the sleeve and the water spray hole, and protecting the nozzle and the sleeve body.

[0007] In order to improve the uniformity of water spraying, the notch is further arranged along the tangent direction of the spraying cavity. By arranging the notch along the tangent direction of the spraying cavity, the desuperheated water moves around the annular cofferdam after spraying, thereby improving the uniformity of water spraying.

[0008] In order to improve the atomization effect when spraying water, the notch further includes a first opening and a second opening, and the first opening and the second opening are arranged in opposite directions along the tangent direction of the spray chamber. By means of the first opening and the second opening arranged in opposite directions along the tangent direction of the spray chamber, the first opening and the second opening collide with each other when spraying water, thereby forming water droplets with small particle diameters, thereby ensuring the atomization effect when spraying water.

[0009] Since the diameter of the injection cavity is larger than the diameter of the water spray hole, the water spraying between the injection cavity and the water spray hole will consume a lot of internal energy, reducing the atomization effect. Furthermore, the main body is provided with a guide cavity, which is arranged between the injection cavity and the water spray hole, one end of the guide cavity is connected to the water spray hole, and the other end of the guide cavity is connected to the injection cavity, and the cross-sectional area of ​​the guide cavity gradually decreases from the injection cavity to the water spray hole. By arranging the guide cavity between the injection cavity and the water spray hole, the guide cavity guides the water spraying, reduces the consumption of internal energy when spraying water, and ensures the atomization effect when the nozzle sprays water.

[0010] Furthermore, the annular cofferdam and the body are an integrally formed structure, and the integrally formed structure ensures that the nozzle structure is stable and reliable.

[0011] Furthermore, a plurality of gaps are arranged along the annular cofferdam.

[0012] The beneficial effects of the present invention are: when the cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notched flow channels is in use, an annular cofferdam is set at one end of the main body and a spray chamber is formed between the main body, thereby isolating the high-pressure cooling water from directly impacting the nozzle, the threaded section of the sleeve and the water spray hole, and can resist the damage to the hardenability of the chromium-molybdenum steel pipeline by the high-pressure cooling water, and protect the nozzle and the sleeve body, avoiding the unreasonable design structure of the existing cooling water nozzle, the poor atomization effect of the direct spray nozzle and damage to the sleeve body, and the great safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is the main view of the prior art;

[0015] Figure 2 It is a schematic diagram of a half-section structure of the prior art;

[0016] Figure 3 It is a front view of the present invention;

[0017] Figure 4 It is a half-section structural schematic diagram of the present invention.

[0018] In the figure: 1, main body, 2, water spray hole, 3, annular cofferdam, 4, gap, 5, first port, 6, second port, 7, injection chamber, 8, guide chamber. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with embodiments:

[0020] The present invention is not limited to the following specific embodiments. A person skilled in the art can implement the present invention in various other specific embodiments according to the contents disclosed in the present invention, or any simple changes or modifications made to the design structure and ideas of the present invention fall within the protection scope of the present invention. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] like Figure 3-4As shown, a cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notch flow channels includes a main body 1, a water spray hole 2 is opened on the main body 1, an annular cofferdam 3 is arranged at one end of the main body 1, an injection cavity 7 is formed between the inner peripheral wall of the annular cofferdam 3 and the main body 1, one end of the water spray hole 2 is arranged in the annular cofferdam 3 and communicated with the injection cavity 7, a notch 4 is opened on the annular cofferdam 3, and the notch 4 extends from the outer peripheral wall of the annular cofferdam 3 to the inner peripheral wall and communicates with the injection cavity 7.

[0024] The notch 4 is arranged along the tangential direction of the injection chamber 7 .

[0025] The notch 4 includes a first port 5 and a second port 6 , and the first port 5 and the second port 6 are arranged in opposite directions along the tangential direction of the injection cavity 7 .

[0026] The main body 1 is provided with a guide cavity 8, which is arranged between the injection cavity 7 and the water spray hole 2. One end of the guide cavity 8 is connected to the water spray hole 2, and the other end of the guide cavity 8 is connected to the injection cavity 7. The cross-sectional area of ​​the guide cavity 8 gradually decreases from the injection cavity 7 to the water spray hole 2.

[0027] The annular cofferdam 3 and the main body 1 are an integrally formed structure.

[0028] The notches 4 are arranged in two groups along the annular cofferdam 3 .

[0029] When the above-mentioned cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notch flow channels is in use, the nozzle is provided with an annular cofferdam 3 to isolate the high-pressure cooling water from directly impacting the nozzle and the matching threads and water spraying holes of the sleeve, thereby protecting the nozzle and the sleeve body 1. Multiple groups of positive and negative tangential notches 4 are arranged on the nozzle with annular cofferdam 3. After the cooling water is sprayed out, it is sprayed out along the notches 4 in the tangential direction. Due to the existence of the positive and negative notches 4, the cooling water collides with each other after being sprayed out to form water droplets with smaller particle diameters, thereby ensuring uniform water spraying and atomization effect.

[0030] The above-mentioned ideal embodiments of the present invention are for inspiration. Through the above-mentioned description, relevant staff can make various changes and modifications without departing from the technical idea of ​​the present invention. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notched flow channels, comprising a body (1), wherein the body (1) is provided with a water spray hole (2), characterized in that: An annular cofferdam (3) is provided at one end of the body (1), an injection cavity (7) is formed between the inner circumferential wall of the annular cofferdam (3) and the body (1), one end of the water spray hole (2) is provided in the annular cofferdam (3) and communicates with the injection cavity (7), a notch (4) is provided on the annular cofferdam (3), the notch (4) extends from the outer circumferential wall of the annular cofferdam (3) to the inner circumferential wall and communicates with the injection cavity (7); The notch (4) is arranged along the tangent direction of the injection chamber (7); The notch (4) comprises a first opening (5) and a second opening (6), wherein the first opening (5) and the second opening (6) are arranged in opposite directions along a tangential direction of the injection chamber (7).

2. The cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notch flow channels according to claim 1 is characterized in that: The body (1) has a guide cavity (8), the guide cavity (8) being arranged between the injection cavity (7) and the water spray hole (2), one end of the guide cavity (8) being connected to the water spray hole (2), and the other end of the guide cavity (8) being connected to the injection cavity (7), and the cross-sectional area of ​​the guide cavity (8) gradually decreases from the injection cavity (7) to the water spray hole (2).

3. The cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notch flow channels according to claim 1 is characterized in that: The annular cofferdam (3) and the main body (1) are an integrally formed structure.

4. The cooling water atomizing nozzle with an annular cofferdam and multiple groups of positive and negative tangential notched flow channels according to any one of claims 1 to 3, characterized in that: A plurality of the gaps (4) are arranged along the annular cofferdam (3).

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