Differential pressure adjusting air damper
A technology for adjusting the damper and pressure difference, which is applied in the configuration of the valve, the combustion method, the combustion equipment, etc., and can solve the problems such as the inability to meet the system use requirements, the high adjustment performance requirements, and the inability to achieve the ventilation volume adjustment performance.
Active Publication Date: 2015-11-11
常州联合锅炉容器有限公司
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Problems solved by technology
[0002] In the entire drying system, the negative pressure in the drying mixing chamber reaches 2000 Pa, and the inlet of the cold air regulating door of the mixing chamber is connected to the atmosphere, so the pressure difference between the inlet and outlet of the cold air door also reaches 2000 Pa; The fluctuation of flue gas temperature of the machine is relatively high, and the temperature adjustment is required to be more precise. Therefore, the adjustment performance of the air intake volume of the cold air adjustment damper in the drying and mixing chamber is very high. To achieve better ventilation adjustment performance, can not meet the requirements of the system
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[0019] In order to make the content of the present invention easier to understand clearly, the present invention will be described in further detail below based on specific embodiments in conjunction with the accompanying drawings
[0020] Such as Figure 1~6 As shown, a pressure difference regulating damper includes a primary regulating damper 1, a secondary regulating damper 2 and a damper housing 3, and the primary regulating damper 1 and the secondary regulating damper 2 are fixed in the damper housing 3 parallel to each other. The primary regulating damper 1 comprises a primary frame 1-1, a primary adjusting connecting rod 1-2, a fixed steel plate 1-3 and a movable steel plate 1-4, and the fixed steel plate 1-3 and the movable steel plate 1-4 all have the same number of ventilation holes 1-5, the fixed steel plate 1-3 is fixed on the first-level frame 1-1, the first-level adjustment connecting rod 1-2 is arranged on the outer side of the end of the first-level frame 1-1, ...
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The invention discloses a differential pressure adjusting air damper which comprises a first-stage adjusting air damper body, a second-stage adjusting air damper body and an air damper shell. The first adjusting air damper body and the second adjusting air damper body are fixed into the air damper shell in parallel. The first-stage adjusting air damper body comprises a first-stage frame, a first-stage adjusting connecting rod, a fixed steel plate and a movable steel plate. The fixed steel plate and the movable steel plate are provided with ventilation holes of the same number. The fixed steel plate is fixed to the first-stage steel frame. The movable steel plate is installed on the first-stage frame in a slidable manner. One end of the movable steel plate extends to the outer side of the first-stage frame and is connected with the first-stage adjusting connecting rod. The movable steel plate is lifted through the first-stage adjusting connecting rod. The second-stage adjusting air damper body comprises a second-stage frame, a connecting rod mechanism and a plurality of turnover plates. The turnover plates are provided with rotating shafts and rotationally installed on a second-stage frame through the rotating shafts. One ends of the rotating shafts are connected with a connecting rod mechanism. The connecting rod mechanism drives the turnover plates to turn over through the rotating shafts. The ventilation quantity can be effectively adjusted under the large internal and external pressure difference, and adjustment is flexible.
Description
technical field [0001] The invention relates to a differential pressure regulating damper, which belongs to the field of boiler equipment. Background technique [0002] In the entire drying system, the negative pressure in the drying mixing chamber reaches 2000 Pa, and the inlet of the cold air regulating door of the mixing chamber is connected to the atmosphere, so the pressure difference between the inlet and outlet of the cold air door also reaches 2000 Pa; The fluctuation of flue gas temperature of the machine is relatively high, and the temperature adjustment is required to be more precise. Therefore, the adjustment performance of the air intake volume of the cold air adjustment damper in the drying and mixing chamber is very high. To achieve better ventilation adjustment performance, can not meet the requirements of the system. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior ...
Claims
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IPC IPC(8): F23L13/00F23L13/02
Inventor 朱帅韦隽韩寿平
Owner 常州联合锅炉容器有限公司