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Fume exhaust ventilator and range integrated machine

A technology for foundation and boiler, which is applied in the field of connection structure between steel column foot and foundation of boiler in thermal power plant, which can solve the problems of inability to meet bearing capacity requirements and hidden dangers of structural safety.

Active Publication Date: 2010-08-25
ZHEJIANG MEIDA IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The connection between the steel column foot and the foundation is generally reserved bolts in the foundation, and then connected to the steel column bottom plate. Due to the large internal force of the steel column foot of the boiler, the bolt connection here cannot meet the bearing capacity requirements, which brings safety hazards to the entire structure

Method used

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  • Fume exhaust ventilator and range integrated machine
  • Fume exhaust ventilator and range integrated machine
  • Fume exhaust ventilator and range integrated machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1. It includes a boiler steel column 1, a foundation insertion bar 2, and a steel column foundation 5. There is an insertion bar 2 in the foundation 5, and a steel embedded part 4 is arranged on the top of the foundation. The steel embedded part 4 is welded to the boiler steel column 1, The foundation rib 2 is welded to the boiler steel column 1.

Embodiment 2

[0012] Embodiment 2. In order to facilitate the welded connection between the boiler steel column 1 and the steel embedded parts 4 and better stress, on the basis of the above structure, a steel column foot plate 3 is added under the boiler steel column 1. The steel column foot plate 3 First weld with the boiler steel column 1, and then weld the steel column foot plate 3 with the embedded steel part 4.

Embodiment 3

[0013] Embodiment 3. In order to improve and enhance the stress situation and increase the strength of the boiler steel column 1, on the basis of the structure of the above-mentioned embodiment 1 or embodiment 2, add 4 steel column foot shoe plates 6 around the boiler steel column 1 , The steel column foot shoe plate 6 is welded and connected with the boiler steel column 1, the steel embedded part 4 or the steel column foot plate 3.

[0014] The method of the present invention is as follows: first pre-set the ribs 2 at the foundation position and then pour the foundation 5, pre-embed the embedded steel parts 4 in the foundation 5, weld the boiler steel column 1 and the embedded steel parts 4 of the foundation, and then insert the ribs 2 into the foundation. It is welded on the steel column 1, and finally the concrete short column on the upper part of the foundation 2 is poured. Foundation 1 is poured with C30 concrete. In the case of a structure such as embodiment two, the st...

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PUM

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Abstract

The invention relates to an integrative cooking utensils of lampblack absorber and cooker, comprising a cabinet body, a plurality of cylindrical sunken stove holes are formed in the panel of the body, a cooker is provided on the soleplate of the stove holes, major arc shaped air suction ports are arranged at the at the top of the wall of the stove holes, a handle hole in one side of the stove holes faces person, a gas suction port communicates with interior of a gas collecting tank. The air inlet of a blower is set in the gas collecting tank. The blower is connected with an exhaust pipe; in the gas collecting tank, a lifting ring capable of covering the air suction port can be connected to the outer face of wall of the cylindrical stove holes in sliding way, and the lifting ring is connected with a driving mechanism.

Description

technical field [0001] The invention relates to a connection structure between a steel column base of a thermal power plant boiler and a foundation and a method thereof. technical background [0002] According to the needs of thermal engineering, boilers in thermal power plants are generally 40-meter-high steel columns, and due to the expansion of water vapor, the internal force transmitted to the column feet is generally very large. In order to allow the internal force of the column foot to be transmitted to the foundation, a rigid connection is adopted between the steel column foot and the foundation. The connection between the steel column foot and the foundation is generally reserved bolts in the foundation, and then connected to the steel column bottom plate. Due to the large internal force of the steel column foot of the boiler, the bolt connection here cannot meet the bearing capacity requirements, which brings safety hazards to the entire structure. Contents of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/20
CPCF24C15/2042
Inventor 夏志生
Owner ZHEJIANG MEIDA IND CO LTD