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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

Active Publication Date: 2021-09-03
JIANGSU CRRC ENVIRONMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The faults of traditional vacuum toilets are found through human observation. When the cleaning staff or toilet personnel find that the toilet does not flush or does not drain after flushing, they will report the fault to the maintenance personnel and rely on manual fault diagnosis and treatment; Untimely detection and handling of faults will not only affect the use needs of toilet users, but also affect the service life and energy consumption of the vacuum system
[0003] For the solution to this problem in the prior art, such as the "vacuum toilet with automatic fault detection function" disclosed in Chinese patent document ZL201020254995.1, it includes a vacuum toilet, a flush valve, a discharge valve, a pressure detection device, and a control module , to achieve fault detection; the inventor found that it only uses a pressure sensor to detect the gas pressure at the inlet of the discharge valve, and only uses this as a criterion to judge the fault and give an alarm. However, although this detection device has realized fault detection, but It only realizes the detection of some faults, such as the leakage of the drain valve and the blockage of the drain valve, but the incomplete blockage of the bedpan inlet and the inlet pipeline cannot be detected and judged, and it is difficult to deal with faults in various complicated situations

Method used

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  • A vacuum toilet fault detection device and method
  • A vacuum toilet fault detection device and method

Examples

Experimental program
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Effect test

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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Abstract

This application discloses a vacuum toilet failure detection device and method. 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; When the negative pressure gradually returns to normal pressure, it is judged that there is no fault in the first stage; when the pressure signal obtained by the pressure sensor is still negative for a certain period of time, it is judged that there is a fault in the first stage, and the controller controls each component to troubleshoot, and then The second stage is judged, and multiple positions of the vacuum toilet are detected, and the fault judgment and troubleshooting are carried out sequentially through the data fed back from each detection position, and part of the faults are eliminated during the fault judgment, which can realize multiple vacuum toilets. Differentiate multiple faults under such circumstances to improve fault detection efficiency and troubleshooting speed.

Description

technical field [0001] This application relates to the field of sanitation systems, in particular to a vacuum toilet fault detection device and method. Background technique [0002] The faults of traditional vacuum toilets are found through human observation. When the cleaning staff or toilet personnel find that the toilet does not flush or does not drain after flushing, they will report the fault to the maintenance personnel and rely on manual fault diagnosis and treatment; Untimely detection and handling of faults will not only affect the use needs of toilet users, but also affect the service life and energy consumption of the vacuum system. [0003] For the solution to this problem in the prior art, such as the "vacuum toilet with automatic fault detection function" disclosed in Chinese patent document ZL201020254995.1, it includes a vacuum toilet, a flush valve, a discharge valve, a pressure detection device, and a control module , to achieve fault detection; the invent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00E03D9/00E03D5/10E03D1/34
CPCE03D1/34E03D5/10E03D9/00G01M99/005
Inventor 刘新宇刘晓龙卢志超严巾堪王天聪李鹏
Owner JIANGSU CRRC ENVIRONMENT CO LTD
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