Drainage structure of waste heat boiler evaporator header

Abstract

The utility model discloses a drain structure of a waste heat boiler evaporator header, which comprises a water-cooled wall, a water-cooled wall lower header, an evaporator tube group, an evaporator header and a drain pipeline, the evaporator tube group is arranged on the inner side of the water-cooled wall, the water-cooled wall lower header is arranged below the water-cooled wall, the evaporator header is arranged below the evaporator tube group, and the drain pipeline is arranged below the evaporator tube group. And the drain pipeline is communicated with the evaporator header and the water-cooled wall lower header. The drainage pipeline of the evaporator header is directly connected into the water-cooled wall lower header, drainage is performed through the water-cooled wall lower header, the structure that the drainage pipeline penetrates through the water-cooled wall is effectively avoided, splicing weld joints of the water-cooled wall are reduced, the manufacturing cost of the water-cooled wall is reduced, and the manufacturing period is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat boiler evaporator header drain technical field especially relates to a waste heat boiler evaporator header's drain structure. BACKGROUND

[0002] As Figure 1 As shown in prior art waste heat boiler evaporator header's drain structure, the evaporator tube group 4 of waste heat boiler is usually arranged in the inside of water cooled wall 5, the water cooled wall lower header 3 is arranged below the water cooled wall, the drain pipe 2 of evaporator header 1 needs to pass through the water cooled wall 5 to drain, since the water cooled wall 5 is a sealed structure, the drain pipe 2 needs to set the pipe 6 on the water cooled wall when passing through the water cooled wall 5. The structure of the pipe 6 is set to increase the splicing weld number of the water cooled wall 5, which hides the safety hazard for the safe operation of the boiler in the later period, and increases the manufacturing cost of the water cooled wall. SUMMARY

[0003] To solve the above technical problem, the utility model discloses a waste heat boiler evaporator header's drain structure.

[0004] The utility model discloses the following technical scheme:

[0005] A waste heat boiler evaporator header's drain structure, including water cooled wall, water cooled wall lower header, evaporator tube group, evaporator header and drain pipe, evaporator tube group sets up in the inside of water cooled wall, water cooled wall lower header sets up below the water cooled wall, evaporator header sets up below evaporator tube group, the drain pipe is linked with evaporator header and water cooled wall lower header.

[0006] As preferred, the drain pipe is respectively provided with joint one and joint two at both ends, and the drain pipe is fixedly connected with the evaporator header and the water cooled wall lower header through the joint one and the joint two.

[0007] As preferred, the drain pipe is fixedly connected with the evaporator header and the water cooled wall lower header through the joint one and the joint two by welding.

[0008] As preferred, the drain pipe is a hose.

[0009] As preferred, the drain pipe is multiple.

[0010] The utility model discloses a waste heat boiler evaporator header's drain structure, directly connects the drain pipe of evaporator header into water cooled wall lower header, and drains through water cooled wall lower header, effectively avoids the structure that the drain pipe passes through water cooled wall, reduces the splicing weld of water cooled wall, reduces the manufacturing cost of water cooled wall, and shortens the manufacturing period. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 This is a schematic diagram of a drainage structure for an existing waste heat boiler evaporator header;

[0012] Figure 2 This is a schematic diagram of the structure of this utility model;

[0013] In the diagram: 1. Evaporator header, 2. Drain pipe, 3. Lower header of water-cooled wall, 4. Evaporator tube assembly, 5. Water-cooled wall, 6. Relief tube. Detailed Implementation

[0014] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0015] Example: Figure 2 As shown, a drainage structure for an evaporator header of a waste heat boiler includes a water-cooled wall 5, a lower water-cooled wall header 3, an evaporator tube assembly 4, an evaporator header 1, and a drainage pipe 2. The evaporator tube assembly 4 is located inside the water-cooled wall 5, the lower water-cooled wall header 3 is located below the water-cooled wall 5, and the evaporator header 1 is located below the evaporator tube assembly 4. The upper end of the drainage pipe 2 is welded to the evaporator header 1, and the lower end of the drainage pipe 2 is welded to the lower water-cooled wall header 3. The evaporator header 1 is connected to the lower water-cooled wall header 3 via the drainage pipe 2 for drainage.

[0016] This invention can avoid the drainage pipes passing through the water-cooled wall, reduce the number of splicing welds in the water-cooled wall, lower the manufacturing cost of the water-cooled wall, shorten the manufacturing cycle, and has a significant demonstration effect.

[0017] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A drainage structure for an evaporator header of a waste heat boiler, comprising a water-cooled wall, a lower water-cooled wall header, an evaporator tube assembly, an evaporator header, and drainage pipes, wherein the evaporator tube assembly is disposed inside the water-cooled wall, the lower water-cooled wall header is disposed below the water-cooled wall, and the evaporator header is disposed below the evaporator tube assembly, characterized in that... The drainage pipe connects the evaporator header and the lower header of the water-cooled wall.

2. The drainage structure of the evaporator header of a waste heat boiler according to claim 1, characterized in that, The drain pipe is provided with connector one and connector two at both ends, and the drain pipe is fixedly connected to the evaporator header and the lower header of the water-cooled wall through connector one and connector two respectively.

3. The drainage structure of the evaporator header of a waste heat boiler according to claim 2, characterized in that, The drainage pipes are fixedly connected to the evaporator header and the lower header of the water-cooled wall by welding through joint one and joint two, respectively.

4. The drainage structure of the evaporator header of a waste heat boiler according to claim 1, characterized in that, The drainage pipe is made of flexible hose.

5. The drainage structure of the evaporator header of a waste heat boiler according to claim 1, characterized in that, There are multiple drainage pipes.

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