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Expansion tank liquid level pressure stabilization device in closed water-cooling circulating system

A circulation system and pressure stabilization technology, applied in the cooling of the engine, engine components, machines/engines, etc., can solve problems affecting normal production and operation, achieve small and unstable liquid level pressure changes, and simplify the expansion tank Voltage stabilization system, reducing the effect of equipment

Inactive Publication Date: 2011-11-23
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the cooled device is shut down for a long time, which affects the normal production and operation.

Method used

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  • Expansion tank liquid level pressure stabilization device in closed water-cooling circulating system
  • Expansion tank liquid level pressure stabilization device in closed water-cooling circulating system
  • Expansion tank liquid level pressure stabilization device in closed water-cooling circulating system

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Experimental program
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Effect test

Embodiment approach 1

[0017] Generally, the expansion tank is set at the highest point of the system, so the expansion tank in this embodiment is not equipped with nitrogen, so that the storage capacity of pure water in the expansion tank becomes larger, and the system can be replenished by the gravity of water. The liquid level pressure stabilizing device of the expansion tank in the closed circulation water cooling system of this embodiment is as follows: figure 1 shown. A funnel-shaped container 5 is installed on the top of the expansion tank 6, and the top of the funnel-shaped container 5 is a sealing cover 4. Funnel-shaped container 5 and expansion tank 6 are welded together. The inside of the expansion tank 6 is equipped with a float, and the structure of the bottom 12 of the float is as follows: figure 2 As shown, such a structure is to make the float float well on the water. The inner wall of the expansion tank 6 has a slideway suitable for a cross structure, and the length of the slide...

Embodiment approach 2

[0021] see image 3 , On the basis of Embodiment 1, no float is installed inside the expansion tank 6, and no slideway is opened on the inner wall of the expansion tank 6, that is, the float structure is not used. An electric valve 15 is installed at the connecting pipe between the funnel-shaped container 5 and the expansion tank 6 . In the initial water injection of the closed circulation water cooling system, the electric valve 15 is opened, and when the water quantity in the expansion tank 6 reaches the maximum value of the liquid level pressure allowed (set) by the system, the electric valve 15 is closed. During the operation of the closed circulation water cooling system, when the liquid level pressure of the expansion tank 6 is lower than the minimum value of the liquid level pressure allowed by the system, the electric valve 15 is opened, and when the water volume in the expansion tank 6 reaches the allowable (set) value of the system When the liquid level pressure rea...

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Abstract

The invention aims to provide an expansion tank liquid level pressure stabilization system in a closed water-cooling circulating system. The expansion liquid level pressure stabilization system comprises an expansion tank, an outer water replenishing pipeline, an internal water replenishing pipeline and a container which is a funneled container; a sealing cover is arranged on the funneled container; the outer water replenishing pipeline is connected with the funneled container and the internal water replenishing pipeline respectively; the funneled container is connected with the expansion tank which is connected with a main water pipeline and an auxiliary pipeline respectively; and the auxiliary pipeline is connected with a small water storage tank which is communicated with the internal water replenishing pipeline. The equipment of the conventional nitrogen pressure stabilization system is reduced, the expansion tank pressure stabilization system in the closed water-cooling system is simplified, the problem of small change range and unstability of the expansion tank liquid level pressure is solved, the closed water-cooling system does not stop when the condition of environment is changed, and the reliability of long-term running of the closed water-cooling system is improved.

Description

technical field [0001] The invention relates to a pressure stabilizing device for a water-cooling circulation system. Background technique [0002] The expansion tank is an indispensable device in the closed water cooling cycle system, and its function is to accommodate and compensate the expansion and contraction of water in the cooling system. The expansion tank is generally filled with high-purity nitrogen. When a small amount of pure water seeps out or is lost in electrolysis, the nitrogen expands automatically and presses the pure water into the circulating pipeline system to keep the pipeline pressure constant and full of water. Due to the presence of nitrogen, the storage capacity of the expansion tank is even less. If there is air leakage from the connecting pipe or joint, nitrogen should be supplied to the expansion tank in time. For the application number 01247045.7, the name is "automatic air replenishment and water supply device for bladder expansion water tank...

Claims

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Application Information

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IPC IPC(8): F01P11/18
Inventor 程鹏兰海罗耀华刘宏达姚绪梁张强赵凯岐田凯张敬南李军
Owner HARBIN ENG UNIV
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