TH93688A - Methods and devices for detecting sealing defects in indoor drainage and ventilation systems. - Google Patents

Abstract

DC60 This invention offers a method which consists of the following steps - impregnation of low-amplitude air pressure transient states into the system. Drainage and ventilation ducts in the building to increase the pressure wave from the assembly (6) to the chimney (1) and the drainage network - recording the passage of such transient conditions by means of a pressure translator. Air (7) located adjacent to the assembly (6) or inlet area. Transient state - recording of pressure reflection sequencing transient conditions from each drain (2) in the drainage network. - The generation of pressure-per-time characteristics recorded by the pressure translator (7) and transmits them to the central receiving system - the transient conditions at such pressure are propagated throughout the network. speed Sound and will be echoed by each end of the pipe and every Pipes in the network to create Characteristic Reflection Coefficient at each end point of each pipe - This effect reflection coefficient is compared with the effect. The test was performed preliminary in a complete network without any built-in defects. Dry type or dry trap leakage And in case of different indications in The track pressure was recorded. The point in the deviation is determined at the time at which the reflection from The end of the changed pipe end comes to the air pressure transducer to provide a comparative Compare this fault traces with the stored defect indication for time and since wave speed is known. Thus the distance from the transducer can be set. Fig. 1 The invention presents a method which consists of the following steps - impregnation of low-amplitude air pressure transient states to system Drains and ventilation ducts in the building to increase the pressure wave from the assembly (6) to the chimney (1) and the drainage network - the passage of such transient conditions by interpreting the air pressure. (7) located close to the apparatus (6) or the transient state inlet area - recording of pressure reflections sequencing the transient conditions from each drain (2) in the drainage network - The pressure-over-time characterization was recorded by the pressure translator (7) and transmitted to the central data acquisition system - the transient state in which the pressure was propagated throughout the network at speed. Sound and is reflected by the end of each and every pipe in the network to form Characteristic Reflection Coefficient at each end point of each pipe - This effect reflection coefficient is compared with the effect. The test was performed preliminary in a complete network without any built-in defects. Dry type or dry trap leakage And in case of different characteristics of the The track pressure was recorded. The point in the deviation is determined at the time at which the reflection from The end of the changed pipe end comes to the air pressure transducer to provide a comparative Compare the fault traces with the stored faultless indication, resulting in time and since wave speed is known. Thus the distance from the transducer can be set. Pressure to a defective trap or seal is obtained. Figure: 1:

Claims (1)

1. Methods for detecting sealing defects within drains and pipelines. Indoor ventilation, which contains at least one (1) main vertical chimney. The chimney is connected to a set of exhausts (2) coming from each floor for exhaust ventilation in Equipment and appliances related to hygiene Generally, the discharge port is equipped with a water trap (4), and ultimately, the drainage system is equipped with an air intake valve or a set Sorted for other proper ventilation and positive air pressure attenuators. Where the method follows the tag: