The sound can also be recorded with a camera. Wilo prided itself on the technology it uses in the development and testing of pumps. It is an acoustic camera (placed in an acoustic chamber) that visualizes noisy places on the device under investigation. It even detects sound that the human ear cannot detect.
Special acoustic chamber for testing the noise level of pumps.
A device consisting of three cameras that, in cooperation with a number of microphones, performs acoustic measurements and makes the noise visible directly on the tested object.
Visualization of the location of the sound on the tested object.
Sound can be captured from different directions and then evaluated using analysis software.
Wilo uses the Head Visor VMA II.1 model from the German company Head Acoustics (see above), but there is surprisingly a lot of competition in the field. This picture shows acoustic cameras from Germany’s GFaI.
Wilo develops pumps for heating systems, and noise is intensively addressed in the industry – it can be a big problem for homeowners. It often spreads through liquid, pipes or masonry, and unpleasant sounds are then carried across the entire building. The causes can be different and you need to pay attention to them, because in addition to acoustic discomfort, they can lead to damage to individual components or the entire system.
The pump is the basis of such a system, but the noise does not mean that there is something wrong with the pump itself – it can also be a case of improper commissioning, it is possible that the system is working with a higher flow rate than necessary. Another problem can be an incorrect hydronic balance, or it is an inappropriate choice of pump for the given heating system.
Noise can also signal the age of the pump – there are still many three-speed pumps in older heating systems, which are characterized by high energy consumption. After the replacement, it is possible to save 80% of the electrical energy. Modern pumps have automatic balancing of the system, automatic venting and an integrated control unit that optimizes the flow so that not only the pump but also the distributions are noiseless.
2023-08-14 12:53:23
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