Boiler nozzle capable of preventing impurities from entering

Abstract

The utility model provides a boiler nozzle capable of preventing impurities from entering, which comprises a nozzle main body, an impurity-preventing piece, a filter plate and a sealing ring, and a nozzle head piece is arranged at the upper end of the inner part of the nozzle main body. Materials enter a spraying pipe through a drainage hole and are sprayed out through the spraying pipe to generate thrust on a moving ring, so that an arc-shaped sliding block slides on the inner side of an arc-shaped sliding groove, a second spraying hole and a first spraying hole are located at the concentric position, and the materials are sprayed out through the first spraying hole to generate large impact force on the inner side of a second spraying pipe; materials are sprayed out through the second spraying holes, impurities in the materials can be impacted, the effect of preventing the impurities from entering can be achieved, the nozzle body, the filter plate and the sealing ring are additionally arranged, the filter plate and the sealing ring are installed in the first step groove and the second step groove before the external connecting pipe is installed, large-particle materials can be filtered, and the connecting sealing performance is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler nozzles, and particularly relates to a boiler nozzle with a structure for preventing foreign matters from entering. Background Technique

[0002] The boiler nozzle is a key component in the boiler combustion system. It is responsible for spraying fuel and air into the furnace at a certain ratio and speed to ensure complete combustion of the fuel. The boiler nozzle is not always in use and will face non-working periods such as shutdown maintenance and regular inspection. During the non-use period of the boiler nozzle, foreign matters may enter. These foreign matters are not controlled by manpower. During production, they may block the spray holes of the boiler nozzle, resulting in the inability to spray and export materials due to the blockage of the spray holes during use. Special personnel are required to remove them before continuing to use, which will reduce the overall production efficiency. In addition, partial blockage will affect the spray volume of the material, causing the spray rate of the material to not match the set value and affecting production use. Moreover, when hard foreign matters pass through the nozzle under high pressure, they may cause damage or even rupture of the nozzle, affecting the safe operation of the equipment and increasing the maintenance cost.

[0003] In summary, there are some problems in the use of boiler nozzles that cannot prevent foreign matters from entering. Therefore, it is hoped to propose a new structure to solve the above technical problems. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a boiler nozzle with a structure for preventing foreign matters from entering, and solve the problems mentioned in the above background technique.

[0005] The utility model is realized through the following technical solutions: A boiler nozzle with a structure for preventing foreign matters from entering, comprising: a nozzle body, an anti-impurity component, a filter plate, and a sealing ring. The upper end of the internal composition of the nozzle body is provided with a nozzle head component. An anti-impurity component for preventing foreign matters from entering when the nozzle body is not in use is arranged outside the nozzle head component. A nozzle cylinder is arranged below the nozzle head component. A sealing ring for improving the connection sealing performance is arranged at the rear end inside the nozzle cylinder. A filter plate for filtering is arranged in front of the sealing ring. A connecting pipe for docking with the nozzle body is arranged outside the rear side of the nozzle body.

[0006] As a preferred embodiment, the nozzle head component is of a frustum shape, and a plurality of groups of spray holes one for spraying materials are vertically penetrated through its outer side surface. The inside of the nozzle head component is a hollow structure, and the plurality of groups of spray holes one communicate with the inside of the nozzle head component, and the materials can be sprayed through the plurality of groups of spray holes one.

[0007] As a preferred embodiment, a circular ring is arranged outside the lower end of the nozzle head component, and an annular chute for assisting the anti-impurity component to make a circular motion is arranged on the upper surface of the circular ring;

[0008] A set of baffles are provided at both the left end and the front end inside the annular chute. The front baffle is used to limit the moving distance of the anti - impurity part, and the left - end baffle is used to press the anti - impurity part spring. The anti - impurity part spring can be compressed by the left - end baffle, and the moving position of the anti - impurity part can be limited by the front baffle.

[0009] As a preferred embodiment, a spray pipe for spraying materials to push the anti - impurity part is provided at the lower left end outside the nozzle head part. A drainage hole is opened at the lower end of the inner side surface of the nozzle head part, and the drainage hole is communicated with the inside of the spray pipe.

[0010] As a preferred embodiment, an anti - impurity frustum part is provided at the upper end of the internal composition of the anti - impurity part, and the inner side surface of the anti - impurity frustum part is in mutual fit with the outer side surface of the nozzle head part;

[0011] A number of spray holes two, which are equal in number to the spray holes one and are circumferentially equally distributed, are vertically penetrated through the outer side surface of the anti - impurity frustum part. The spray pipe sprays materials to generate an impact force on the moving ring, causing the anti - impurity part to rotate and making the spray holes two and the spray holes one concentric.

[0012] As a preferred embodiment, a moving ring is provided at the lower end outside the anti - impurity frustum part. Arc - shaped sliders are provided at both the left end and the front end of the lower surface of the moving ring. The arc - shaped sliders are movably fitted with the annular chute, and an anti - impurity part spring is provided at the rear side of the left - end arc - shaped slider.

[0013] As a preferred embodiment, a step groove one for installing a filter plate is opened at the rear end of the inner side surface of the nozzle cylinder. Internal threads are provided on the inner side surface of the step groove one, and a step groove two for installing a sealing ring is opened on the rear side surface of the nozzle cylinder.

[0014] As a preferred embodiment, the filter plate is mutually fitted with the front end of the step groove one, the sealing ring is mutually fitted with the front end of the step groove two, and a connecting nut is provided at the rear end of the outer side surface of the nozzle cylinder. Before installation, the filter plate and the sealing ring are installed in the step groove one and the step groove two by an external connecting pipe, which can filter large - particle materials and improve the connection sealing performance.

[0015] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: By adding the nozzle body and the anti-impurity component, when spraying materials, the materials enter the spray pipe through the diversion holes, and are sprayed out through the spray pipe to generate a thrust on the moving ring, so that the arc-shaped slider slides inside the arc-shaped chute, making the second spray hole concentric with the first spray hole. The materials are sprayed out through the first spray hole to generate a greater impact force on the inner side of the second spray pipe, and the materials are sprayed out through the second spray hole and can impact the sundries inside it, achieving the effect of preventing sundries from entering. By adding the nozzle body, the filter plate and the sealing ring, before installing the external connecting pipe, the filter plate and the sealing ring are installed in the first step groove and the second step groove, which can filter large-particle materials and improve the connection tightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of a boiler nozzle with anti-impurity entry of the present utility model.

[0018] Figure 2 It is a schematic diagram of the front side structure of the nozzle body in a boiler nozzle with anti-impurity entry of the present utility model.

[0019] Figure 3 It is a schematic diagram of the rear side structure of the nozzle body in a boiler nozzle with anti-impurity entry of the present utility model.

[0020] Figure 4 It is a schematic diagram of the structure of the anti-impurity component in a boiler nozzle with anti-impurity entry of the present utility model.

[0021] In the figure, 100 - nozzle body, 101 - nozzle head part, 102 - first spray hole, 103 - circular ring, 104 - ring chute, 105 - baffle, 106 - spray pipe, 107 - diversion hole, 108 - nozzle cylinder, 109 - connecting nut, 110 - first step groove, 111 - internal thread, 112 - second step groove;

[0022] 200 - anti-impurity component, 201 - anti-impurity frustum, 202 - second spray hole, 203 - moving ring, 204 - arc-shaped slider, 205 - anti-impurity component spring;

[0023] 300 - filter plate;

[0024] 400 - sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, in combination with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0026] Please refer to Figures 1 to 4 , the present invention provides a technical solution: a boiler nozzle with anti-debris entry, including: a nozzle body 100, an anti-debris member 200, a filter plate 300, and a sealing ring 400. The upper end of the internal composition of the nozzle body 100 is provided with a nozzle head member 101;

[0027] An anti-debris member 200 for preventing debris from entering when the nozzle body 100 is not in use is provided outside the nozzle head member 101. A nozzle cylinder 108 is provided below the nozzle head member 101, and a sealing ring 400 for improving the connection sealing performance is provided at the inner rear end of the nozzle cylinder 108;

[0028] A filter plate 300 for filtering is provided on the front side of the sealing ring 400, and a connecting pipe for docking with the nozzle body 100 is provided outside the rear side of the nozzle body 100.

[0029] The nozzle head member 101 is of a frustum-shaped structure, and a plurality of groups of spray holes 102 for spraying materials are vertically penetrated through its outer side surface. The inside of the nozzle head member 101 is a hollow structure, and the plurality of groups of spray holes 102 are interconnected with the inside of the nozzle head member 101, and the materials can be sprayed through the plurality of groups of spray holes 102.

[0030] A circular ring 103 is provided on the outer lower end of the nozzle head member 101, and a ring chute 104 for assisting the anti-debris member 200 to make a circular motion is opened on the upper surface of the circular ring 103;

[0031] A group of baffles 105 are provided at both the left end and the front end inside the ring chute 104. The front baffle 105 is used to limit the moving distance of the anti-debris member 200, and the left baffle 105 is used to press the anti-debris spring 205. The anti-debris spring 205 can be compressed through the left baffle 105, and the moving position of the anti-debris member 200 can be limited through the front baffle 105.

[0032] A spray pipe 106 for spraying materials to push the anti-debris member 200 is provided on the outer lower left end of the nozzle head member 101, and a drainage hole 107 is opened on the lower inner side surface of the nozzle head member 101. The drainage hole 107 is interconnected with the inside of the spray pipe 106.

[0033] The anti - foreign matter part 200 is provided with an anti - foreign matter frustum part 201 at the upper end of its internal composition. The inner side surface of the anti - foreign matter frustum part 201 fits closely with the outer side surface of the nozzle head part 101.

[0034] Several groups of spray holes two 202, which are equal in number to the spray holes one 102 and are circumferentially equally distributed, are vertically formed through the outer side surface of the anti - foreign matter frustum part 201. The spray pipe 106 sprays the material, which can generate an impact force on the moving ring 203, causing the anti - foreign matter part 200 to rotate and making the spray holes two 202 and the spray holes one 102 in a concentric position.

[0035] A moving ring 203 is provided at the lower end of the outer side of the anti - foreign matter frustum part 201. Arc - shaped sliders 204 are provided at the left end and the front end of the lower surface of the moving ring 203. The arc - shaped sliders 204 are movably fitted with the ring chute 104. An anti - foreign matter part spring 205 is provided at the rear side of the left - end arc - shaped slider 204.

[0036] Please refer to Figures 1 - 4 , as the first embodiment of the present utility model: First, the user connects the peripheral connecting pipe to the nozzle cylinder 108. The material enters the inner side of the nozzle main body 100 through the peripheral connecting pipe, enters the spray pipe 106 through the diversion hole 107, and is sprayed through the spray pipe 106 to generate a thrust on the moving ring 203, causing the arc - shaped slider 204 to slide inside the arc - shaped chute 104. And the moving position of the anti - foreign matter part 200 can be restricted by the front baffle 104, making the spray holes two 202 and the spray holes one 102 in a concentric position. The material sprayed through the spray holes one 102 generates a large impact force on the inner side of the spray pipe two 202, and the material sprayed through the spray holes one 102 can also impact the sundries inside the spray holes two 202. Secondly, when not in use, the anti - foreign matter part spring 205 generates a resilience force to make the anti - foreign matter part 200 rotate in the reverse direction, so that the anti - foreign matter frustum part 201 blocks the spray holes one 102, thereby achieving the effect of preventing foreign matters from entering.

[0037] A step groove one 110 for installing the filter plate 300 is opened at the rear end of the inner side surface of the nozzle cylinder 108. An internal thread 111 is provided on the inner side surface of the step groove one 110. A step groove two 112 for installing the sealing ring 400 is opened on the rear side surface of the nozzle cylinder 108.

[0038] The filter plate 300 is fitted with the front end of the step groove one 110, and the sealing ring 400 is fitted with the front end of the step groove two 112. A connecting nut 109 is provided at the rear end of the outer side surface of the nozzle cylinder 108. Before installing the peripheral connecting pipe, the filter plate 300 and the sealing ring 400 are installed inside the step groove one 110 and the step groove two 112, which can filter large - particle materials and improve the connection sealing performance.

[0039] Please refer to Figures 1 - 3, as the second embodiment of the present utility model: Based on the above first embodiment, the user embeds the filter plate 300 into the inner front end of the step groove 110, and embeds the sealing ring 400 into the inner front end of the step groove 112, and then connects and installs the peripheral connecting pipe to the nozzle cylinder 108, which can squeeze and fix the filter plate 300 and the sealing ring 400, so as to filter large-particle materials and improve the connection tightness.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A boiler nozzle with protection against foreign objects entering, comprising: A nozzle body (100), an anti - foreign matter component (200), a filter plate (300), and a sealing ring (400), characterized in that: at the upper end of the internal components of the nozzle body (100), there is a nozzle head component (101); On the outer side of the nozzle head component (101), there is an anti - foreign matter component (200) for preventing foreign matter from entering when the nozzle body (100) is not in use. Below the nozzle head component (101), there is a nozzle cylinder (108). At the inner rear end of the nozzle cylinder (108), there is a sealing ring (400) for improving the connection sealing performance; In front of the sealing ring (400), there is a filter plate (300) for filtration use. On the outer rear side of the nozzle body (100), there is a connecting pipe for docking with the nozzle body (100).

2. The boiler nozzle with anti-foreign matter entry according to claim 1, characterized in that: The nozzle head component (101) has a frustum - shaped structure, and several groups of spray holes one (102) for spraying materials are vertically penetrated through its outer side. The inside of the nozzle head component (101) is a hollow structure, and several groups of spray holes one (102) communicate with the inside of the nozzle head component (101).

3. The boiler nozzle with prevention of foreign matter entry according to claim 2, characterized in that: On the outer lower end of the nozzle head component (101), there is a circular ring (103). On the upper surface of the circular ring (103), there is a ring chute (104) for assisting the anti - foreign matter component (200) to make a circular motion; At the inner left end and the front end of the ring chute (104), there is a set of baffles (105) each. The front baffle (105) is used to limit the moving distance of the anti - foreign matter component (200), and the left baffle (105) is used to press the anti - foreign matter spring (205).

4. The boiler nozzle with anti-debris entry according to claim 3, characterized in that: On the outer lower left side of the nozzle head component (101), there is a spray pipe (106) for spraying materials to push the anti - foreign matter component (200). At the lower end of the inner side of the nozzle head component (101), there is a drainage hole (107), and the drainage hole (107) communicates with the inside of the spray pipe (106).

5. The boiler nozzle with anti-debris entry according to claim 4, characterized in that: At the upper end of the internal components of the anti - foreign matter component (200), there is an anti - foreign matter frustum part (201), and the inner side of the anti - foreign matter frustum part (201) fits with the outer side of the nozzle head component (101); Several groups of spray holes two (202) that are equally distributed in a circular pattern and have the same number as the spray holes one (102) are vertically penetrated through the outer side of the anti - foreign matter frustum part (201).

6. The boiler nozzle with anti-debris entry as claimed in claim 4, characterized in that: At the upper end of the internal components of the anti - foreign matter component (200), there is an anti - foreign matter frustum part (201), and the inner side of the anti - foreign matter frustum part (201) fits with the outer side of the nozzle head component (101); Several groups of spray holes two (202) that are equally distributed in a circular pattern and have the same number as the spray holes one (102) are vertically penetrated through the outer side of the anti - foreign matter frustum part (201).

7. The boiler nozzle with anti-debris entry as described in claim 1, characterized in that: At the inner rear end of the nozzle cylinder (108), there is a step groove one (110) for installing the filter plate (300). On the inner side of the step groove one (110), there is an internal thread (111). On the rear side of the nozzle cylinder (108), there is a step groove two (112) for installing the sealing ring (400).

8. A boiler nozzle with anti-debris entry as described in claim 7, characterized in that: The filter plate (300) is mutually fitted with the front end of the first step groove (110), the sealing ring (400) is mutually fitted with the front end of the second step groove (112), and a connecting nut (109) is provided at the rear end of the outer side surface of the nozzle cylinder (108).

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