Thermal-power flue gas sampling and temperature measuring system
A flue gas and thermal power technology, applied in the field of thermal power flue gas sampling and temperature measurement system, can solve the problems of high humidity of flue gas, influence sampling box, sulfur dioxide consumption, etc., and achieve the effect of prolonging service life, promoting uniform mixing and reducing energy loss
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Embodiment 1
[0029] The thermal power flue gas sampling and temperature measurement system provided in this embodiment is set in a sampling box 100, which is a sealed box with a sealed inner cavity 101 inside. The temperature measuring device includes an auxiliary detection assembly and a temperature sensor 3 installed in the sealed inner cavity 101, the auxiliary detection assembly includes two first pipes 1 and second pipes 2 that form a T-shaped tee pipe, the first An axial flow fan 11 is arranged in a pipeline 1 ; the temperature sensor 3 is installed in a second pipeline 2 . Both the first pipe 1 and the second pipe 2 are straight pipes with open ends, and the first pipe 1 and the second pipe 2 are perpendicular to each other and communicate with each other.
[0030] The temperature sensor 3 is not installed at the connection between the first pipeline 1 and the second pipeline 2 .
[0031] The present invention adopts the axial flow fan 11 to form an air flow in the first pipeline 1...
Embodiment 2
[0034] This embodiment is improved on the basis of Embodiment 1, and its improvements are as follows: image 3 As shown, the sealed inner cavity 101 is a rectangular cavity, the auxiliary detection part is installed on the top of the sealed inner cavity 101, and the wind direction formed by the axial flow fan 11 faces the top corner of the sealed inner cavity 101, that is, the first pipe 1 It is arranged at an acute angle with the top surface of the sealed inner chamber 101, and the axial flow fan 11 is arranged at the end of the first pipe 1 away from the top surface of the sealed inner chamber 101, so that the smoke flowing in the first pipe 1 flows from the sealed inner chamber 101 The middle part flows to a corner formed by the top surface and the side surface of the sealed cavity 101 .
[0035] The first pipe 1 is an air inlet end at the end far away from the sealed inner chamber 101 , and an air outlet end at the end close to the sealed inner chamber 101 . When the airf...
Embodiment 3
[0039] This embodiment is improved on the basis of Embodiment 2, and its improvements are as follows: image 3As shown, the temperature measuring device also includes a shroud 4 arranged at the top corner of the sealed inner chamber 101 and between the first pipe 1 and the top corner of the sealed inner chamber 101, the shroud 4 facing the first pipe 1. The arc structure of the gas outlet opening. The deflector is preferably a spherical arc surface structure, which reduces the energy loss of the impact of the air flow at the outlet end of the first pipe 1 and enhances the convection effect of the smoke in the sealed inner cavity 101 .
[0040] When the flue gas flow formed by the axial flow fan 11 is blown out from the gas outlet, under the action of the arc-shaped guide cover 4, the flue gas flow escapes to the surroundings and blows to the bottom of the sealed inner cavity 101, thereby repeatedly sealing the inner cavity. The flue gas in the chamber 101 circulates and mixes...
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Abstract
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