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CN-121973820-A - Vacuum excrement collecting device, control method thereof and railway vehicle

CN121973820ACN 121973820 ACN121973820 ACN 121973820ACN-121973820-A

Abstract

The invention provides a vacuum excrement collecting device, a control method thereof and a railway vehicle, wherein the vacuum excrement collecting device comprises an excrement collector; the temporary storage tank is connected with the toilet through a first drain pipe, a toilet drain valve is arranged on the first drain pipe, the temporary storage tank is arranged to be at the rated highest liquid level in the temporary storage tank before the toilet is drained, the sewage tank is connected with the temporary storage tank through a second drain pipe, the vacuum generator is communicated with the sewage tank and is used for forming a vacuum environment in the sewage tank when the toilet is drained and the temporary storage tank is drained, the sewage comprises two stages of toilet drainage and temporary storage tank sewage, the toilet drain valve is opened in the toilet drain stage, the liquid level in the temporary storage tank is reduced from the rated highest liquid level to the first liquid level, and the toilet drain valve is closed in the temporary storage tank drain stage. The temporary storage box filled with water is arranged for transition, so that dirt at the bottom of the toilet bowl and the water body of the temporary storage box are connected into a whole, the water in the temporary storage box forms a water seal effect, the temporary storage box is used for isolating vacuum, and vacuum noise caused by pollution discharge and vacuum breaking of the vacuum toilet bowl is eliminated.

Inventors

  • WEI LING
  • YANG XUSHENG
  • CHEN JIANGUO
  • TAO GUIDONG
  • GUO JIANQIANG

Assignees

  • 中车青岛四方机车车辆股份有限公司

Dates

Publication Date
20260505
Application Date
20260312

Claims (10)

  1. 1. A vacuum feces collection device, comprising: A toilet bowl; The temporary storage box is connected with the toilet through a first drain pipe, a toilet drain valve is arranged on the first drain pipe, and the temporary storage box is arranged in the temporary storage box at the rated highest liquid level before the toilet is drained; the temporary storage box is connected with the sewage box through a second sewage drain pipe; the vacuum generator is communicated with the sewage box and is used for forming a vacuum environment in the sewage box when the toilet is used for discharging sewage and the temporary storage box is used for discharging sewage; The vacuum excrement collecting device comprises two stages of excrement discharging and temporary storage tank discharging, wherein in the excrement discharging stage, the excrement discharging valve is opened, the liquid level in the temporary storage tank is reduced from the rated highest liquid level to the first liquid level, and in the temporary storage tank discharging stage, the excrement discharging valve is closed.
  2. 2. The vacuum excrement collector as claimed in claim 1, wherein, The second blow-down pipe comprises an inlet section, a bent pipe section and an outlet section which are sequentially communicated; the inlet section is in sealing connection with a sewage outlet at the bottom of the temporary storage box, and the outlet section is in sealing connection with a sewage inlet of the sewage box; the pipeline comprises a temporary storage box, an inlet section, a pipeline section and a water seal structure, wherein the pipeline section is of an inverted U-shaped structure, the highest point of the pipeline section is higher than the rated highest liquid level in the temporary storage box, the lowest point of the pipeline section is connected with the outlet section, and a section of water column is formed in the inlet section and the pipeline section to form the water seal structure.
  3. 3. The vacuum excrement collector as claimed in claim 1, wherein, The top of the temporary storage box is provided with a sewage outlet, the bottom of the temporary storage box is provided with a sewage outlet, and the caliber of the sewage outlet are smaller than the inner diameter of the box body of the temporary storage box; along keeping away from the direction of blowdown entry, the box upper portion of temporary storage case expands the setting, along being close to the direction of blowdown export, the box lower part of temporary storage case reduces the setting.
  4. 4. The vacuum excrement collector as claimed in claim 1, wherein, The temporary storage box is of a spiral pipe structure.
  5. 5. The vacuum excrement collecting device as claimed in any one of claims 1 to 4, wherein, The temporary storage box is provided with a liquid level sensor for detecting at least the rated highest liquid level of the temporary storage box; the temporary storage box is connected with a vent pipe, and the vent pipe is provided with a vent valve.
  6. 6. The vacuum excrement collecting device as claimed in any one of claims 1 to 4, wherein, The temporary storage box is connected with a water supplementing pipe, and the water supplementing pipe is provided with a water supplementing valve.
  7. 7. The vacuum feces collection device of any one of claims 1 to 4, further comprising: the anti-freezing heat tracing device comprises a heating structure and a heat insulation material, wherein the heating structure and the heat insulation material are arranged on at least one of the temporary storage box, the second sewage draining pipe and the dirt box.
  8. 8. A control method of the vacuum excrement collecting apparatus according to any one of claims 1 to 7, comprising the steps of: When the device is electrified for the first time, self-checking whether each functional valve is in the correct position, if so, controlling the vent valve to be opened, supplementing water to the rated highest liquid level in the temporary storage box, and closing the vent valve after the water supplementing is completed; controlling the toilet to flush, vacuumizing to a preset vacuum degree by using a vacuum generator, opening a toilet drain valve until the liquid level in the temporary storage box is reduced to a preset liquid level, closing the toilet drain valve, and controlling the toilet to flush secondarily; Under the condition that the toilet drain valve is closed, the ventilation valve is opened, so that the temporary storage box is emptied; And controlling the temporary storage box to supplement water to the rated highest liquid level.
  9. 9. The method for controlling a vacuum excrement collector according to claim 8, further comprising: And after the water tank and the water supply pipeline on the vehicle are emptied, executing the step of flushing the toilet stool, and then executing the step of emptying the temporary storage tank.
  10. 10. A rail vehicle comprising a vacuum excrement collecting device according to any one of claims 1 to 7.

Description

Vacuum excrement collecting device, control method thereof and railway vehicle Technical Field The invention relates to the field of railway vehicles, and provides a vacuum excrement collecting device, a control method thereof and a railway vehicle. Background The vacuum excrement collector is used as a high-efficiency and environment-friendly sewage disposal device and has been widely applied in the transportation fields of civil aviation, railway passenger transport and the like. Although the vacuum toilet has irreplaceable advantages in terms of sewage discharge performance and environmental protection, the core defects of the vacuum toilet are increasingly prominent in the long-term practical application process, wherein the most prominent problem is noise pollution in the sewage discharge process, especially at the end of sewage discharge. When the vacuum toilet works, the system needs to generate a certain negative pressure to realize the rapid suction of dirt, and when the dirt is discharged, the negative pressure environment in the system can rapidly break the vacuum, and the air instantly gushes in to form strong airflow impact, so that instant noise reaching up to approximately 90dB is generated. In the closed train carriage and passenger plane cabin environment, noise not only can cause strong auditory stimulus to passengers who are in the toilet, but also can influence rest of surrounding passengers, and the travelling comfort of the passengers is seriously reduced. Along with the continuous improvement of the service quality of railway and civil aviation passenger transport, the requirements of passengers on travel comfort are increasingly improved, and the problem of vacuum breaking noise when the sewage discharge is finished is solved on the basis of keeping the advantages of good negative pressure sewage discharge effect, water saving and the like of the vacuum excrement collector, so that the technical improvement of the current vacuum excrement collector system is urgently required. Disclosure of Invention The embodiment of the invention provides a vacuum excrement collecting device, a control method thereof and a railway vehicle, which are used for solving the problem of vacuum breaking noise when the sewage of a vacuum excrement collecting device is finished in the related art, eliminating sewage noise and improving the comfort of passengers. The invention provides a vacuum excrement collecting device, comprising: A toilet bowl; The temporary storage box is connected with the toilet through a first drain pipe, a toilet drain valve is arranged on the first drain pipe, and the temporary storage box is arranged in the temporary storage box at the rated highest liquid level before the toilet is drained; the temporary storage box is connected with the sewage box through a second sewage drain pipe; the vacuum generator is communicated with the sewage box and is used for forming a vacuum environment in the sewage box when the toilet is used for discharging sewage and the temporary storage box is used for discharging sewage; The vacuum excrement collecting device comprises two stages of excrement discharging and temporary storage tank discharging, wherein in the excrement discharging stage, the excrement discharging valve is opened, the liquid level in the temporary storage tank is reduced from the rated highest liquid level to the first liquid level, and in the temporary storage tank discharging stage, the excrement discharging valve is closed. According to one embodiment of the invention, the second blow-down pipe comprises an inlet section, a bent pipe section and an outlet section which are communicated in sequence; the inlet section is in sealing connection with a sewage outlet at the bottom of the temporary storage box, and the outlet section is in sealing connection with a sewage inlet of the sewage box; the pipeline comprises a temporary storage box, an inlet section, a pipeline section and a water seal structure, wherein the pipeline section is of an inverted U-shaped structure, the highest point of the pipeline section is higher than the rated highest liquid level in the temporary storage box, the lowest point of the pipeline section is connected with the outlet section, and a section of water column is formed in the inlet section and the pipeline section to form the water seal structure. According to one embodiment of the invention, the top of the temporary storage box is provided with a sewage inlet, the bottom of the temporary storage box is provided with a sewage outlet, and the caliber of the sewage inlet and the caliber of the sewage outlet are smaller than the inner diameter of the box body of the temporary storage box; along keeping away from the direction of blowdown entry, the box upper portion of temporary storage case expands the setting, along being close to the direction of blowdown export, the box lower part of temporary storage case reduces the setting. According to one