A vacuum toilet fault detection device and method
A vacuum toilet and fault detection technology, applied in the field of sanitary system, can solve the problem of incomplete blockage of the bedpan inlet and inlet pipeline, which cannot be detected and discriminated, affects the service life of the vacuum system and the loss of energy consumption, and is difficult to deal with a variety of complex situations. problems such as faults, to achieve the effect of improving detection speed and detection accuracy, improving service life, and reducing energy consumption problems
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Embodiment 1
[0041] In a typical implementation of the present application, such as figure 1 As shown, a vacuum toilet fault detection device and method are proposed.
[0042] Including various detection elements and controllers, the controller is integrated with the original control module of the vacuum toilet, for example, the flush button and vacuum system controlled by the original control module, the device includes:
[0043] The pressure sensor is installed between the bedpan and the discharge valve of the bedpan discharge line, and the pressure signal on the bedpan discharge line is detected and sent to the controller; the isolation valve is installed on the bedpan discharge line, and the auxiliary discharge valve jointly connects the bedpan and the end of the discharge line. The vacuum system is isolated, and the discharge valve is controlled by the control module; the liquid level sensor is installed in the bedpan to detect the liquid level signal of the sewage remaining in the be...
Embodiment 2
[0053] In another typical embodiment of the present application, a vacuum toilet fault detection method is provided, using the vacuum toilet fault detection device described in Embodiment 1.
[0054] Specific steps are as follows:
[0055] After the vacuum toilet is flushed, the discharge valve is closed, and the pressure sensor detects the pressure signal of the discharge pipeline between the discharge valve and the bedpan;
[0056] When the pressure signal acquired by the pressure sensor passes through t 1 When the negative pressure gradually returns to normal pressure for a long time, it is judged that there is no fault in the first stage;
[0057] When the pressure signal acquired by the pressure sensor lasts for t 1 If the pressure is still negative for a long time, it is determined that there is a fault in the first stage, and the controller controls each component to troubleshoot;
[0058] After judging that there is no fault in the first stage, the liquid level sens...
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