A sealing device for the bottom of boiler tail flue
A technology of tail flue and sealing device, which is applied in the direction of engine sealing, exhaust gas device, combustion product treatment, etc., can solve the time-consuming and laborious maintenance and replacement of sealing structure, without considering the thermal expansion of the boiler, and the boiler can not operate normally, etc. problem, to achieve good thermal expansion and ensure the effect of sealing
Active Publication Date: 2016-08-17
WUXI HUAGUANG BOILER
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Problems solved by technology
[0002] Since the main heating surface of the forced circulation gas-fired hot water boiler is a support structure, and the flue gas at the boiler outlet is designed to be drawn from the rear wall of the boiler, this type of arrangement requires the bottom of the heating surface at the boiler tail to be designed as a sealed structure. The existing structure The sealing structure does not take into account the overall thermal expansion of the boiler, which is prone to emergencies during the operation of the boiler, making the boiler unable to operate normally, and it takes time and effort to repair and replace the sealing structure
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[0013] A sealing device for the bottom of the tail flue of a boiler, see Figure 1 to Figure 5 : It includes a water wall 1, a flue 2, a tail flue outlet 3, and a bottom header 4, the tail flue outlet 3 is located at the lower part of the rear wall side of the flue 2, and the bottom header 4 is located at the entrance of the bottom flue outlet 3 Below the place, the water wall 1 is located at the front wall of the flue 2, and the bottom of the flue 2 is paved with a sealing steel plate 5, which is supported on the upper plane of the platform frame 12 formed by the combination of supporting channel steel 6, and the platform frame 12 The bottom of the support rod 7 is welded to the upper end surface of the corresponding position, the bottom of the support rod 7 is welded to the bottom frame 8 of the boiler, the sealing plate 5 and the bottom header 4 are welded at the connection position, and the water wall 1 faces the flue 2 The upper end surface of the sealing flap 9 is welded...
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The invention provides a sealing device at the bottom of a tail flue of a boiler. The sealing device is capable of guaranteeing sealing property, good thermal expansion and high-efficiency and safety operation and is simple in structure and convenient to mount. The sealing device comprises a water cooling wall, a flue, a tail flue outlet and a bottom header, wherein the tail flue outlet is arranged on the lower portion of the real wall side of the flue, the bottom header is arranged below an inlet of the bottom flue outlet, and the water cooling wall is arranged on the front wall of the flue. The sealing device is characterized in that a sealing steel plate is arranged at the bottom of the flue and is supported on supporting box iron to form an upper plane of a platform frame integrally, the bottom of the platform frame is connectively welded with the upper end face of a support rod at the corresponding position, the bottom of the support rod is connectively welded to a bottom frame of the boiler, and the connecting position of the sealing steel plate and the bottom header are connectively welded.
Description
technical field [0001] The invention relates to the technical field of boiler structures, in particular to a sealing device for the bottom of a boiler tail flue. Background technique [0002] Since the main heating surface of the forced circulation gas-fired hot water boiler is a support structure, and the flue gas at the boiler outlet is designed to be drawn from the rear wall of the boiler, this type of arrangement requires the bottom of the heating surface at the boiler tail to be designed as a sealed structure. The existing structure The sealing structure does not take into account the overall thermal expansion of the boiler, which is prone to emergencies during the operation of the boiler, making the boiler unable to operate normally, and it takes time and effort to repair and replace the sealing structure. Contents of the invention [0003] In view of the above problems, the present invention provides a sealing device for the bottom of the boiler tail flue, which can...
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IPC IPC(8): F23J13/00F23J13/08F16J15/06
Inventor 任孝明何雁飞黄岳军韦志平
Owner WUXI HUAGUANG BOILER