Method for detecting water leakage of tap water pipeline

Abstract

The invention discloses a method for detecting the water leakage of a tap water pipeline. The method comprises the following steps of: mounting a flow measurement device on the tap water pipeline; setting flow measurement time T; when an instantaneous flow in the flow measurement time T is larger than 0, recording a smallest flow Q1 in the period of time; carrying out the same calculation in next flow measurement time T; when a smallest flow Q2 larger than 0 also exists in the second period of time, and the change rate of the Q1 and the Q2 is + / - 10 percent, judging that the tap water pipeline leaks water; when the smallest flow Q2 in the second period of time is 0, returning all calculations to zero, renewedly calculating and judging, and circulating in turn. The method has the advantages of wide identification range, low cost, convenience for mounting, high identification precision and the like; and the leakage of the tap water pipeline can be timely and accurately detected.

Description

technical field [0001] The invention relates to a method for detecting water leakage of tap water pipes. Background technique [0002] Ordinary household water leakage is easy to occur, such as toilets, solar energy, etc. Generally, when water users find that it has already happened and caused huge losses (such as damage to the decoration wall, huge water bills, etc.). [0003] The more common technical solution at present is to install a pressure sensor on the running pipeline, and judge whether there is water leakage by the pressure change value measured by the pressure sensor. [0004] The above scheme has the following disadvantages: [0005] 1. Slow response: Since the pressure change is a very complicated evolution process, a large amount of data and time are required to confirm the pressure change caused by water leakage. Often, the response to a water leakage requires long-term measurement and calculation. The consequences have often already happened. [0006] 2....

AI Technical Summary

Problems solved by technology

[0005] 1. Slow response: Since the pressure change is a very complicated evolution process, a large amount of data and time are required to confirm the pressure change caused by water leakage. Often, the response to a water leakage requires long-term measurement and calculation. consequences have often already occurred

[0006] 2. Expensive: Due to the need to install a high-precision pressure sensor and a background control system, the price is very high

[0007] 3. Low precision: Since the degree of water leakage is mainly realized by the sensitivity of the pressure sensor, the requirements for the pressure sensor are very high, but the price determines that it is impossible to use high-precision sensors on a large scale, so the accuracy of the sensors in the market is low. is relatively low, therefore, for small seepage water, it is impossible to identify

[0008] 4. Low recognition rate: Due to its relatively low accuracy, it is very sensitive to sudden large flow leakage, such as burst pipes, etc., but it is relatively sluggish for small flow and long-term leakage