Water-cooled wall header

Abstract

The utility model discloses a water-cooled wall header, and particularly relates to the technical field of headers for boilers, which comprises a header main body, a sealing mounting end cover is arranged outside the end face of the header main body, mounting flanges are arranged on the outer end faces of the header main body and the sealing mounting end cover, and locking nuts are arranged on the end faces of the mounting flanges. A mounting supporting frame is arranged on the lower side of the outer end face of the header body. During actual use, water flow can be quickly supplemented into the header main body in the state that the water inlet pipe and the water inlet grooves are correspondingly arranged, and meanwhile, backflow steam can be effectively prevented from being poured into the water inlet pipe in the state that the water inlet grooves are distributed on the outer end face of the water inlet pipe in an array mode, so that the water flow can be quickly supplemented into the header main body. Meanwhile, the situation that rapid water flow scours the inner wall of the header main body for a long time and damages the inner end face of the header main body can be avoided, and meanwhile, in the corresponding arrangement state of the backflow pipe, the water cooling wall water outlet pipe and the installation supporting frame, the working medium in the header main body can be conveniently circulated.

Description

Technical Field

[0001] The utility model relates to the technical field of headers for boilers, and more specifically, to a water-cooled wall header. Background Art

[0002] The header is an important part of the boiler, which is divided into an upper header and a lower header. Its main function is to collect the working fluid or redistribute the working fluid to other pipes through the header, that is, to collect, mix and distribute the working fluid to ensure uniform distribution and uniform heating of the working fluid. The lower header is also called an anti-coking box. It is located on both sides of the grate and directly contacts the burning coal seam. Its function is to cool the coked slag so that it does not adhere to the side wall. A boiler water-cooled wall header described in Publication No. (CN219867978U) has a fixing hole on the main pipe according to the actual installation position, and the limit bolt is rotated on the clamping plate until the limit bolt is immersed in the fixing hole. The arc clamping plate is rotated, and the connecting plates are close to each other. The two connecting plates are fixed by bolts and nuts to complete the fixation of the main pipe. Flat steel and arc steel plates are welded on one side between multiple water-cooled wall tubes. When the heated metal of the water-cooled wall tube expands, the arc steel plate can be deformed under the action of the expansion force to absorb the expansion force of the water-cooled wall in the horizontal direction.

[0003] When the above device is in use, the heat-resistant layer and the wear-resistant layer on the inner wall of the water-cooled wall tube work together to effectively protect the water-cooled wall from wear and increase the load-bearing time of the water-cooled wall tube. However, when the water flow inside the header is replenished, the inner wall of the header will be directly flushed. Under long-term flushing, the inner wall of the header will be damaged, thereby affecting the service life and safety of the water-cooled wall header. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a water-cooled wall header. The technical problem to be solved by the utility model is: how to avoid damage to the interior of the water-cooled wall header.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water-cooled wall header, comprising a header body, a sealing mounting end cover is provided on the outside of the end face of the header body, the outer end faces of the header body and the sealing mounting end cover are both provided with mounting flanges, the end faces of the mounting flanges are provided with locking nuts, a mounting support frame is provided on the lower side of the outer end face of the header body, a water inlet pipe is provided on the upper end face of the header body, and a shunt pipe is provided on the upper end of the header body on a side close to the water inlet pipe;

[0006] A water-cooled wall outlet pipe is provided at the lower end of the header body on the side close to the mounting support frame, and a return pipe is provided on the outer end face of the header body on the side close to the mounting support frame when viewed from the right. The water inlet pipe passes through the upper end face of the header body and extends to the interior of the header body, and a water inlet groove is provided on the outer end face of the header body.

[0007] In a preferred embodiment, the sealing installation end covers are provided in two numbers, and are arranged in a mirror image state on both sides of the vertical central axis in the top view direction of the header body;

[0008] There are two mounting flanges, which are arranged in a mirror image on both sides of the vertical central axis in the top view of the header body.

[0009] In a preferred embodiment, the number of the locking nuts is provided in two groups, each group is provided with a plurality of locking nuts, and the two groups of locking nuts are arranged in a mirror image state on both sides of the vertical central axis in the top view direction of the header body;

[0010] Each group of multiple locking nuts is arranged in a ring array outside the center point of the header body in the right viewing direction.

[0011] In a preferred embodiment, the number of the mounting support frames is multiple, and they are arranged in an array state on both sides of the vertical central axis in the top view direction of the header body;

[0012] There are a plurality of water inlet pipes, which are arranged in an array on both sides of the vertical central axis in the top view of the header body.

[0013] In a preferred embodiment, the water inlet grooves are provided in a plurality and are arranged in a circular array outside the center point of the water inlet pipe in a top view direction;

[0014] The number of the shunt pipes, return pipes and water-cooled wall outlet pipes is multiple, and they are arranged in an array state on both sides of the vertical central axis in the top view direction of the header body.

[0015] In a preferred embodiment, the shunt pipe, return pipe and water-cooled wall outlet pipe are all connected to the interior of the header body, and the outer end surfaces of the header body, shunt pipe, return pipe and water-cooled wall outlet pipe are sprayed with wear-resistant and high-temperature resistant coatings.

[0016] Technical effects and advantages of the utility model:

[0017] When the utility model is actually used, by setting the water inlet pipe and the water inlet trough in a corresponding state, water flow can be quickly supplemented to the interior of the header body. At the same time, when the water inlet trough is arranged in an array distribution on the outer end face of the water inlet pipe, it can effectively prevent the reflux steam from pouring into the interior of the water inlet pipe, and also prevent the fast water flow from scouring the inner wall of the header body for a long time and causing damage to the inner end face of the header body. At the same time, when the reflux pipe, the water-cooled wall outlet pipe and the installation support frame are set in a corresponding state, the working medium inside the header body can be circulated conveniently, and the water flow can be prevented from directly scouring the inside of the water-cooled wall header, thereby increasing the service life and safety of the water-cooled wall header. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the overall rear structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the overall cross-section connection structure of the utility model.

[0021] Figure 4 It is a schematic diagram of the overall right side cross-sectional structure of the utility model.

[0022] Figure 5 For this utility model Figure 3 Schematic diagram of the enlarged structure of part A in the middle.

[0023] The reference numerals in the drawings are: 1 header body, 2 sealing mounting end cover, 3 mounting flange, 4 locking nut, 5 water inlet pipe, 6 branch pipe, 7 return pipe, 8 water-cooled wall outlet pipe, 9 mounting support frame, 10 water inlet tank. DETAILED DESCRIPTION

[0024] The utility model provides a water-cooled wall header, such as Figure 1 , 2As shown in Figure 3, it includes a header body 1, the outer end surface of which is provided with a sealed mounting end cover 2, the outer end surfaces of the header body 1 and the sealed mounting end cover 2 are both provided with mounting flanges 3, the end surface of the mounting flange 3 is provided with a locking nut 4, the upper end surface of the header body 1 is provided with a water inlet pipe 5, the upper end of the header body 1 is provided with a shunt pipe 6 on the side close to the water inlet pipe 5, the water inlet pipe 5 passes through the upper end surface of the header body 1 and extends to the inside of the header body 1, the number of the sealed mounting end covers 2 is provided with two, and there are two on both sides of the vertical central axis of the header body 1 in the top view direction. The mounting flanges 3 are arranged in a mirror state, with two being provided in number, and are arranged in a mirror state on both sides of the vertical center axis of the manifold body 1 in the direction of looking down; the locking nuts 4 are provided in two groups, each group having a plurality of locking nuts, and the two groups of locking nuts 4 are arranged in a mirror state on both sides of the vertical center axis of the manifold body 1 in the direction of looking down; each group of the plurality of locking nuts 4 is arranged in a circular array state on the outside of the center point of the manifold body 1 in the right direction of viewing; the water inlet pipes 5 are provided in plurality, and are arranged in an array state on both sides of the vertical center axis of the manifold body 1 in the direction of looking down.

[0025] like Figure 4 and 5 As shown, a mounting support frame 9 is provided on the lower side of the outer end surface of the header body 1, a water-cooled wall outlet pipe 8 is provided on the lower end of the header body 1 on a side close to the mounting support frame 9, a return pipe 7 is provided on the outer end surface of the header body 1 on the side close to the mounting support frame 9 in the right viewing direction, and a water inlet pipe 5 is provided with a water inlet groove 10 on the outer end surface inside the header body 1. The number of the mounting support frames 9 is provided in plurality, and they are arranged in an array state on both sides of the vertical central axis of the header body 1 in the top view direction, and the water inlet groove 10 is provided in a plurality of arrays. 0 is provided in plurality, and is arranged in a circular array state on the outer side of the center point of the water inlet pipe 5 in the top-view direction; the shunt pipe 6, the return pipe 7 and the water-cooled wall outlet pipe 8 are provided in plurality, and are arranged in an array state on both sides of the vertical central axis in the top-view direction of the header body 1; the shunt pipe 6, the return pipe 7 and the water-cooled wall outlet pipe 8 are all connected to the interior of the header body 1; and the outer end surfaces of the header body 1, the shunt pipe 6, the return pipe 7 and the water-cooled wall outlet pipe 8 are sprayed with wear-resistant and high-temperature resistant coatings.

[0026] Working principle of this utility model:

[0027] When the utility model is used, after the staff completes the installation of the header body 1, the water flow inside the header body 1 will be discharged to the inside of the water-cooled wall through the water-cooled wall outlet pipe 8, and then under the high temperature state inside the boiler, the water flow inside the water-cooled wall will evaporate into water vapor, and then it will quickly flow back to the inside of the header body 1 from the reflux pipe 7, and then the refluxed gas will transport high-temperature steam to the rear process through the diversion pipe 6 at the upper end of the header body 1, and then the water inlet pipe 5 set up will quickly pour water into the inside of the header body 1 through the water inlet trough 10.

[0028] Finally, a few points should be explained: the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water-cooled wall header, characterized in that: include: A header body (1) is provided with a sealing mounting end cover (2) on the outside of its end surface, the outer end surfaces of the header body (1) and the sealing mounting end cover (2) are both provided with mounting flanges (3), the end surface of the mounting flange (3) is provided with a locking nut (4), a mounting support frame (9) is provided on the lower side of the outer end surface of the header body (1), a water inlet pipe (5) is provided on the upper end surface of the header body (1), and a shunt pipe (6) is provided on the upper end of the header body (1) on a side close to the water inlet pipe (5); A water-cooled wall outlet pipe (8) is provided at the lower end of the header body (1) on a side close to the mounting support frame (9); a return pipe (7) is provided on the outer end surface of the header body (1) on a side close to the mounting support frame (9) when viewed from the right; the water inlet pipe (5) passes through the upper end surface of the header body (1) and extends to the interior of the header body (1); and a water inlet groove (10) is provided on the outer end surface of the header body (1).

2. The water-cooled wall header according to claim 1, characterized in that: The sealing installation end covers (2) are provided in two numbers and are arranged in a mirror image state on both sides of the vertical central axis of the header body (1) in a top view direction; The number of the mounting flanges (3) is two, and they are arranged in a mirror image state on both sides of the vertical central axis of the header body (1) in a top-view direction.

3. The water-cooled wall header according to claim 1, characterized in that: The locking nuts (4) are provided in two groups, each group having a plurality of locking nuts, and the two groups of locking nuts (4) are arranged in a mirror image state on both sides of the vertical central axis of the header body (1) in a top view direction; Each group of multiple locking nuts (4) is arranged in a ring array outside the center point of the header body (1) in the right viewing direction.

4. The water-cooled wall header according to claim 1, characterized in that: The number of the mounting support frames (9) is plural, and they are arranged in an array state on both sides of the vertical central axis of the header body (1) in a top-view direction; The water inlet pipes (5) are provided in a plurality and are arranged in an array on both sides of the vertical central axis of the header body (1) in a top-view direction.

5. The water-cooled wall header according to claim 1, characterized in that: The water inlet grooves (10) are provided in a plurality and are arranged in a circular array outside the center point of the water inlet pipe (5) in a top-view direction; The number of the flow distribution pipe (6), the return pipe (7) and the water-cooled wall outlet pipe (8) is multiple, and they are arranged in an array on both sides of the vertical central axis of the header body (1) in the top view direction.

6. The water-cooled wall header according to claim 1, characterized in that: The shunt pipe (6), the return pipe (7) and the water-cooled wall outlet pipe (8) are all connected to the interior of the header body (1), and the outer end surfaces of the header body (1), the shunt pipe (6), the return pipe (7) and the water-cooled wall outlet pipe (8) are sprayed with wear-resistant and high-temperature resistant coatings.

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