Detection device and detection method for liquid leakage of ground heating pipeline

Abstract

The invention belongs to the technical field of ground heating, relates to a detection device and a detection method for liquid leakage of a ground heating pipeline, and solves the technical problems that the prior art is unreasonable in design and the like. The device comprises a liquid inlet flow detection device, a liquid outlet flow detection device, a liquid inlet and outlet flow comparer and a flow cut-off valve, wherein the liquid inlet flow detection device, the liquid outlet flow detection device and the flow cut-off valve are connected with the liquid inlet and outlet flow comparer. The detection device and the detection method for the liquid leakage of the ground heating pipeline have the advantages that the design is reasonable, the structure is simple, the working accuracy is high, the sensitivity is good, the operation and the use are easy, and the starting preliminary interference of a ground heating system is eliminated effectively. Besides, due to the fact that an electromagnetic flow-meter is arranged, even during long-term use, the sensitivity reduction of the electromagnetic flow-meter caused by impurity accumulation is prevented, and the working accuracy is guaranteed sufficiently; and a warning device is arranged, so that a warning signal can be sent timely to remind a user or a maintenance worker.

Description

technical field [0001] The invention belongs to the technical field of floor heating, and relates to floor heating pipeline detection, in particular to a floor heating pipeline liquid leakage detection device and a detection method thereof. Background technique [0002] Ground radiant heating is the most comfortable heating method. The indoor surface temperature is uniform, and the room temperature gradually decreases from bottom to top, giving people a good feeling of warm feet and cool head; it is not easy to cause dirty air convection, and the indoor air is clean; it improves blood circulation and promotes metabolism. . In addition, floor heating cancels the radiator and its branch pipes, which increases the use area, facilitates decoration and home decoration, and reduces sanitary dead ends. The radiation heating method has higher thermal efficiency than the convection heating method, and the heat is concentrated in the height where the human body benefits; the heat los...

AI Technical Summary

Problems solved by technology

[0005] Although the above scheme can realize the alarm when the floor heating water pipe breaks and close the floor heating water inlet pipe, there are still the following problems: 1. False alarms are prone to occur: in the initial stage of the floor heating system, the water in the water inlet pipe is hotter, and the water in the water outlet pipe is hotter. It is colder, and even the water outlet main pipe has air generated by cooling after the last activation, so there is a volume difference in the amount of water in and out

In actual application, the floor heating system is particularly prone to misoperation at the initial stage of startup, and even causes it to fail to work normally.

2. The control accuracy is low: In order to successfully pass the initial stage of the floor heating system, it is necessary to set a large difference between the inflow and outflow of water, so that only when there is a large amount of leakage, can the alarm be executed and the floor heating water inlet pipe be closed

3. Long-term use will cause sensitivity reduction: the water in the floor heating system is easy to carry impurities during operation, and the flow sensor will reduce the detection sensitivity due to the accumulation of impurities after long-term use

4. The work stability is poor, the energy loss is more, and the burden of use is increased. Once the power supply is interrupted, it is easy to be paralyzed

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