A method for measuring the temperature distribution of the outlet water of a power tower with a wind-shielding wall in the falling water area

Abstract

The invention discloses a method for measuring the outlet water temperature distribution of a power tower including a wind-shielding wall in a falling area. 1 , the steel wire rope is parallel to the ground, and the height is H from the ground; b. Install a slip ring made of steel wire on the edge of the windshield wall, the diameter of the slip ring is D 2 , the wire diameter is D 3 ; c. Knot the rope after passing through the slip ring, and arrange the rope with the slip ring as the center at the angular distance θ in the circumferential direction. The rope material is nylon rope and the diameter is D 4 , the length of a single rope is L 1 , the total number of ropes is M; d, continuous on one side rope, according to the equal spacing L 2 Arrange the waterproof wireless platinum resistance resistance, pull the other side of the rope in the opposite direction of the slip ring, move the platinum resistance resistance to the measurement area and arrange it evenly, and fix one end of the rope on the steel wire rope; e. Debug the wireless platinum resistance resistance signal receiving device and data acquisition software, The real-time and continuous measurement of the outlet water temperature distribution of the power tower can be carried out.

Description

technical field [0001] The invention belongs to the field of measuring the outlet water temperature distribution of a mechanical power tower, and particularly relates to a method for measuring the water outlet temperature distribution of a mechanical power tower including a wind-shielding wall in a falling water area. Background technique [0002] Mechanical ventilation cooling towers are usually arranged in groups or side by side. Accurate cooling tower outlet water temperature must be obtained if the thermal performance of a cooling tower unit needs to be studied, especially when the detailed aerodynamic distribution of the cooling tower fill, water eliminators, sprinkler heads, and the entire cooling tower needs to be analyzed. The temperature distribution of the falling water in the tower is a very important thermal parameter, which directly reflects the performance of the cooling tower. [0003] To measure the temperature distribution of the falling water of the mechan...

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Problems solved by technology

[0003] To measure the temperature distribution of the falling water of the mechanical tower, the existing technology mainly adopts the means of centralized collection and unified measurement of the cooling tower falling water through the water collector. The falling water in the water collector is uniformly collected into the temperature measuring container and then measured. Since it is very difficult to arrange the water collector in the water falling space of the cooling tower, this method is difficult to implement in practice, especially for the water falling area that includes a windshield wall Measuring the temperature distribution of the outlet water of the machine power tower is very difficult to operate because the water falling area of ​​the machine power tower is divided into isosceles right triangles and the space cannot be penetrated.

[0004] In addition to using the water collector to measure the temperature distribution of the falling water in the power tower, at present, the thermocouple is fixed on the swimming ring and dragged in the pool to realize the measurement of the water temperature distribution. Obtaining the water tower falling water temperature distribution data at the same time, and the data coordinate positioning is not accurate, for the measurement of the water tower outlet water temperature distribution in the falling water area including the windshield wall, because the adjacent cooling towers occupy the working area, it is actually impossible to implement in practice

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