CN108166585B - Toilet control method - Google Patents
Toilet control method Download PDFInfo
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- CN108166585B CN108166585B CN201711355097.8A CN201711355097A CN108166585B CN 108166585 B CN108166585 B CN 108166585B CN 201711355097 A CN201711355097 A CN 201711355097A CN 108166585 B CN108166585 B CN 108166585B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D7/00—Wheeled lavatories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D35/00—Sanitation
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- Automation & Control Theory (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
The invention relates to a toilet control method, which comprises a clean water tank, a sewage tank and a controller, wherein the clean water tank is connected with a water injection device and a water discharge device, and the method specifically comprises the following steps: monitoring the clear water demand of a sewage tank and the existing water quantity of a clear water tank; and step two, controlling water injection or water drainage of the clear water tank according to the clear water demand of the sewage tank until the water quantity of the clear water tank is matched with the clear water demand of the sewage tank. The invention determines the water injection quantity of the clean water tank according to the clean water demand of the sewage tank, so that the filling quantity of the clean water tank is the lowest, the vehicle weight or the vehicle quality is reduced, the performance of the whole vehicle can be improved, and the waste of resources can be avoided.
Description
Technical Field
The invention relates to a toilet system, in particular to a control method of a toilet.
Background
In recent years, whether the national policy or the public awareness has led to a new increase in environmental protection and energy saving, and also new requirements have been placed on railway vehicles, which have been gradually equipped with devices for collecting train excreta of passengers to reduce pollution along the railway, which are called as waste boxes.
Because the existence of the sewage tank makes it necessary to have a clean water tank on the train for containing clean water, when the toilet stool needs to be flushed, the sewage in the toilet stool is flushed clean and enters the sewage tank together with the sewage. In the running process of the train, water injection and pollution discharge are not carried out at each station along the way simultaneously, but only pollution discharge is carried out at some stations according to the conditions, and only water injection is carried out at some stations.
At present, the clear water tank and the sewage tank are respectively contained in the calculation of the vehicle mass when 100% of the water is filled, so that the traction force and the braking configuration are increased. If the water storage capacity of the clean water tank is not controlled, the vehicle quality is increased, and the traction and braking configuration is increased, so that the performance of the whole vehicle is influenced, and the waste of resources is caused.
Therefore, it is now highly desirable to design a system that can determine the water injection amount of the clear water tank according to the demand of the sewage tank, so as to make the water storage amount of the clear water tank as low as possible, so as to reduce the vehicle quality, thereby improving the performance of the whole vehicle and avoiding the waste of resources.
Disclosure of Invention
The invention mainly solves the technical problem of providing a toilet control method which can determine the water injection amount of a clean water tank according to the demand of a sewage tank so as to reduce the quality of a finished automobile, improve the performance of the finished automobile and avoid resource waste.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a toilet control method comprises a clean water tank, a sewage tank and a controller, wherein the clean water tank is connected with a water injection device and a water discharge device, and the toilet control method specifically comprises the following steps:
monitoring the clear water demand of a sewage tank and the existing water quantity of a clear water tank;
and step two, controlling water injection or water drainage of the clear water tank according to the clear water demand of the sewage tank until the water quantity of the clear water tank is matched with the clear water demand of the sewage tank.
Further, in the second step, when the clear water requirement of the sewage tank is smaller than the existing water quantity of the clear water tank, the clear water tank is controlled to drain until the water quantity of the clear water tank is matched with the clear water requirement of the sewage tank, and the drainage device is cut off.
Further, in the second step, when the clear water requirement of the sewage tank is larger than the existing water quantity of the clear water tank, the clear water tank is controlled to be filled with water until the water quantity of the clear water tank is matched with the clear water requirement of the sewage tank, and the water filling device is cut off.
Further, in the second step, when the requirement of clear water of the sewage tank is larger than the existing water quantity of the clear water tank, the clear water tank is controlled to be filled with water until the clear water tank is full of water, the water filling device is cut off, then the clear water tank is controlled to drain water until the water quantity of the clear water tank is matched with the requirement of clear water of the sewage tank, and the water draining device is cut off.
Further, in the step one, the determination step of the clear water requirement of the sewage tank comprises the steps of calculating the existing capacity of the sewage tank by detecting the internal pressure of the sewage tank, calculating the residual capacity of the sewage tank by the capacity of the sewage tank, determining the residual capacity of the sewage tank as the clear water requirement of the sewage tank, or calculating the frequency of the residual capacity of the sewage tank for sewage disposal according to the sewage disposal amount of each sewage disposal, and calculating the clear water requirement of the sewage tank according to the frequency of the sewage disposal.
Further, in the step one, the determination step of the clear water demand of the sewage tank is to calculate the existing capacity of the sewage tank through the accumulated pollution discharge times, calculate the residual capacity of the sewage tank through the capacity of the sewage tank, determine the residual capacity of the sewage tank as the clear water demand of the sewage tank, or calculate the times that the residual capacity of the sewage tank can supply pollution discharge according to the pollution discharge amount of each pollution discharge, and calculate the clear water demand according to the times of the pollution discharge.
Further, the step of emptying the waste tank is included before accumulating the number of filths to be discharged.
Further, in the step one, the existing water quantity of the clear water tank is determined by detecting the internal pressure of the clear water tank to calculate the existing water quantity of the clear water tank;
or, the existing water quantity of the clean water tank is calculated by detecting the total water output quantity of the clean water tank during two times of water filling.
Further, in the second step, the water injection amount and the water discharge amount of the clean water tank are determined by detecting the internal pressure change of the clean water tank, or by flow sensors provided on the water injection pipe and the water discharge pipe.
Further, after the water injection is finished, the step of judging that the water injection quantity of the clean water tank reaches the clean water requirement quantity of the sewage tank is also included.
Further, the step of determining that the water injection amount of the clean water tank has reached the clean water demand of the sewage tank is specifically that when the water injection amount of the clean water tank reaches a predetermined value, the controller controls the drainage device to be opened, the drainage device flows out of water, and then the water injection amount of the clean water tank is determined to reach the clean water demand of the sewage tank.
Further, the step of determining that the water injection amount of the clean water tank has reached the clean water demand amount of the waste tank is specifically that a pressure control device is arranged on the water injection pipeline, when the water injection amount of the clean water tank reaches a preset value, the water injection device is closed, the pressure control device controls the water injection pipeline to be communicated with a drainage device when the pressure in the water injection pipeline reaches a limit value, the drainage device discharges water, and then the water injection amount of the clean water tank is determined to reach the clean water demand amount of the waste tank.
Further, the pressure control device is a pressure relief valve.
And further, the step of judging that the water injection quantity of the clean water tank reaches the clean water demand quantity of the sewage tank is specifically that a two-position three-way electromagnetic valve is arranged in a water injection pipeline, one pipeline is connected with the water injection pipeline and is connected with the clean water tank, the other pipeline is connected into a drainage device, when the water injection quantity of the clean water tank reaches a preset value, the connection with the water injection pipeline is cut off, the drainage device is connected, water flows out, and then the water injection quantity of the clean water tank reaches the clean water demand quantity of the sewage tank.
Further, the step of determining that the water injection amount of the clean water tank has reached the clean water demand amount of the sewage tank is specifically a pressure display for detecting the pressure of a water injection pipeline on the water injection pipeline, the pressure display is connected with the controller, when the water injection amount of the clean water tank reaches a predetermined value, the water injection device is closed, the pressure display detects a warning prompt when the pressure of the water injection pipeline exceeds a limit, and then the water injection amount of the clean water tank is determined to reach the clean water demand amount of the sewage tank.
In summary, compared with the prior art, the toilet control method provided by the invention has the following advantages:
(1) the invention can determine the water injection amount of the clean water tank according to the clean water amount required by flushing the sewage tank in the toilet excrement collecting system, and can fill the clean water tank with the lowest amount of clean water to ensure that the water storage amount of the clean water tank is as low as possible, so that the vehicle weight or the vehicle quality can be kept at the lowest possible level, the self weight of the vehicle is effectively reduced, the performance of the whole vehicle can be improved, and the waste of resources can be avoided.
(2) The toilet system is suitable for various mobile toilets, vehicle-mounted toilets, rail vehicle toilets and the like which are installed in cities.
Drawings
FIG. 1 is a block diagram of a toilet system according to a first embodiment of the present invention;
FIG. 2 is a block diagram of a second embodiment of the toilet system of the present invention;
FIG. 3 is a block diagram of a toilet system according to a third embodiment of the present invention;
FIG. 4 is a block diagram of a fourth embodiment of the toilet system of the present invention;
FIG. 5 is a block diagram of a fifth embodiment of the toilet system of the present invention
Fig. 6 is a block diagram of a sixth embodiment of the toilet system of the present invention.
As shown in fig. 1 to 6, a clean water tank 1, a sewage tank 2, a controller 3, a drain pipe 4, a drain electromagnetic valve 5, a water injection pipe 6, an overflow pipe 7, a first pressure detection device 8, a second pressure detection device 9, a vehicle speed detection device 10, a water injection flow sensor 11, a drain flow sensor 12, a sewage discharge pipe 13, a sewage discharge electromagnetic valve 14, a sewage discharge pipe 15, a sewage discharge sensor 16, a full liquid level sensor 17, an empty tank liquid level sensor 18, a water injection electromagnetic valve 19, a check valve 20, a flow sensor 21, a sewage discharge switch 22, a pressure relief valve 23, and a pressure display 24.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
the first embodiment is as follows:
as shown in fig. 1, the toilet control method provided by the present invention includes a clean water tank 1, a waste tank 2 and a controller 3, wherein the clean water tank 1 is connected with a water injection device and a water discharge device, the clean water tank 1 is communicated with a toilet bowl through another water outlet pipe to provide clean water for flushing the toilet bowl, and the waste tank 2 is used for collecting waste discharged from the toilet bowl.
In this embodiment, the water injection device includes one or two water injection pipes 6, and the entry end of water injection pipe 6 inserts the water source, and the exit end inserts the box top of clear water tank 1, from the top water injection of clear water tank 1. The drainage device comprises a drainage pipe 4 and a drainage electromagnetic valve 5 connected in series with the drainage pipe 4, the drainage pipe 4 is connected to the bottom of the clean water tank 1, the other end of the drainage pipe 4 is connected to the outside or the outside of the vehicle, the drainage electromagnetic valve 5 is connected with the controller 3, and the drainage electromagnetic valve 5 is automatically controlled to be on or off by the controller 3.
The toilet control method specifically comprises the following steps:
step one, monitoring the clear water requirement of the sewage tank and the existing water quantity of the clear water tank.
And step two, controlling water injection or water drainage of the clear water tank according to the clear water demand of the sewage tank until the water quantity of the clear water tank is matched with the clear water demand of the sewage tank.
In this embodiment, the required amount of the clean water in the sewage tank 2 and the existing amount of the water in the clean water tank 1 are calculated by detecting the internal pressures of the sewage tank 2 and the clean water tank 1.
Specifically, a first pressure detection device 8 for detecting the internal water pressure of the clean water tank 1 is arranged at the bottom of the clean water tank 1, a second pressure detection device 9 for detecting the internal pressure of the sewage tank 2 is arranged at the bottom of the sewage tank 2, the first pressure detection device 8 and the second pressure detection device 9 both adopt pressure sensors, and the first pressure detection device 8 and the second pressure detection device 9 are connected with the controller 3. The first pressure detection device 8 and the second pressure detection device 9 transmit the detected pressure signals to the controller 3, and the controller 3 performs calculation analysis on the received pressure signals.
The controller 3 calculates the water volume of the clean water tank 1 according to the detection value of the first pressure detection device 8, detects before water injection, can obtain the existing water volume of the clean water tank 1, detects after water injection, can obtain the water volume of the clean water tank 1, and the water volume is matched with the clean water demand of the sewage tank 2.
The amount of the existing sewage in the sewage tank 2 is calculated according to the detection value of the second pressure detection device 9, and before water is required to be injected, the residual capacity of the sewage tank 2 is calculated according to the amount of the existing sewage in the sewage tank 2 and the volume of the sewage tank 2. The controller 3 sets the remaining capacity of the filth tank 2 to the fresh water demand. In order to more accurately control the required amount of the clean water and further reduce the water storage amount of the clean water tank 1, the controller 3 can also calculate the number of times of flushing in the residual capacity of the sewage tank 2 according to the discharge amount (flushing water amount + discharge amount, 0.52 liter/time according to medical data) every time, the required clean water amount is certain during flushing every time, further calculate the required clean water amount for flushing, and finally calculate the accurate required amount of the clean water of the sewage tank 2.
The controller 3 compares the calculated clean water demand of the waste tank 2 with the existing water volume of the clean water tank 1 before filling.
When the controller 3 monitors that the required amount of the clean water of the sewage tank 2 is smaller than the existing water amount of the clean water tank 1, the controller 3 controls the drainage electromagnetic valve 5 in the drainage device to be opened without filling water into the clean water tank 1, so that the clean water tank 1 starts to drain water, and the excess water amount in the clean water tank 1 is drained through the drainage pipe 4. The pressure in the clean water tank 1 is monitored in real time through the first pressure detection device 8 in the water discharging process of the clean water tank 1, the pressure is converted into the water quantity of the clean water tank 1 according to the pressure, and the water discharging electromagnetic valve 5 is switched off and the water discharging is stopped when the water quantity discharged from the clean water tank 1 to the clean water tank 1 is matched with the clean water requirement of the sewage tank 2.
When the controller 3 monitors that the clear water demand of the sewage tank is larger than the existing water quantity of the clean water tank 1, the water discharge pipe 4 discharges no water after the station arrives, at the moment, water is injected into the clean water tank 1 through the water injection pipe 6, the pressure in the clean water tank 1 is monitored in real time through the first pressure detection device 8 in the water injection process of the clean water tank 1, the pressure is converted into the water quantity of the clean water tank 1 according to the pressure, and the water injection is stopped until the water quantity of the clean water tank 1 is matched with the clear water demand of the sewage tank 2.
When the water injection amount reaches the preset value, the method further comprises the step of judging that the water injection amount of the clean water tank 1 reaches the clean water requirement amount of the sewage tank 2, in the embodiment, the step is specifically that when the water amount in the clean water tank 1 reaches the clean water requirement amount of the sewage tank 2, the controller 3 controls the drainage electromagnetic valve 5 to be opened, the surplus water amount is drained through the drainage pipe 4, and at the moment, an operator sees that the drainage pipe 4 discharges water, and the water injection operation can be stopped.
When the filth case 2 is in the evacuation state, because the volume of clear water tank 1 is less than filth case 2, at this moment, clear water tank 1 can the water injection to hold full state, whether reach and hold full state and can calculate through the measuring value of first pressure measurement device 8, or set up a full liquid level sensor alone at clear water tank 1.
If controller 3 damages or first pressure measurement 8, when second pressure measurement 9 damages and can't monitor the water pressure in clear water tank 1, still continue to annotate inside after clear water tank 1 fills up water, will certainly make water injection equipment pressure increase, cause water injection equipment's damage, in order to avoid this kind of condition, set up an overflow pipe 7 on clear water tank 1's upper portion in this embodiment, the entry setting of overflow pipe 7 is on clear water tank 1's box upper portion, in order to simplify the structure, the exit end of overflow pipe 7 inserts in the drain pipe 4. When first pressure measurement 8, second pressure measurement 9 damaged, clear water tank 1 unnecessary water can be followed overflow pipe 7 and discharged after filling, stop the water injection at this moment can, effectively avoided because the too big condition that causes water injection equipment to damage of water injection pressure.
Of course, if the volume of the clean water tank 1 is smaller than that of the sewage tank 2, the residual accommodating capacity of the sewage tank 2 cannot be reached even if the clean water tank 1 is filled, at this time, the filled water directly overflows outwards through the overflow pipe 7, and at this time, the water filling is stopped.
For the toilet installed on the railway vehicle, the series of activities are all performed after the vehicle stops, in the embodiment, the output end of the vehicle speed detection device 10 is connected to the controller 3, and the series of activities are started only when the controller 3 detects that the speed signal sent by the vehicle speed detection device 10 is 0. When the speed signal sent by the vehicle speed detection device 10 is not 0, that is, when the vehicle is not completely stopped, the first pressure detection device 8 and the second pressure detection device 9 do not work, which is beneficial to prolonging the service life of the toilet system.
The invention can determine the water injection amount of the clean water tank 1 according to the clean water amount required by flushing the sewage tank 2 in the toilet excrement collecting system, and can fill the clean water tank 1 with the lowest amount of clean water to ensure that the water storage amount of the clean water tank 1 is as low as possible, so that the vehicle weight or the vehicle quality can be kept at the lowest possible level, the self weight of the vehicle is effectively reduced, the performance of the whole vehicle can be improved, and the waste of resources can be avoided.
Example two:
as shown in fig. 2, the difference from the first embodiment is that the first pressure detecting device 8 and the second pressure detecting device 9 are omitted, and a water injection detecting device is connected to each water injection pipe 6 to detect the amount of water injected by the water injection detecting device, and the water injection detecting device is connected to the controller 3 to precisely control the amount of water injected by the controller 3. The water injection detection device adopts a water injection flow sensor 11.
The drainage device comprises a drainage pipe 4 and a drainage electromagnetic valve 5 connected in series with the drainage pipe 4, the drainage pipe 4 is connected to the bottom of the clean water tank 1, the other end of the drainage pipe 4 is connected to the outside or the outside of the vehicle, the drainage electromagnetic valve 5 is connected with the controller 3, and the drainage electromagnetic valve 5 is automatically controlled to be on or off by the controller 3. The water discharge detection device for detecting the water discharge of the clean water tank 1 is connected in series with the water discharge pipe 4, the water discharge detection device adopts a water discharge flow sensor 12, and the water discharge flow sensor 12 is connected with the controller 3.
The water injection flow sensor 11 and the water discharge flow sensor 12 transmit the detected flow signals to the controller 3, and the controller 3 performs calculation analysis on the received flow signals. The controller 3 calculates the water injection amount of the clean water tank 1 according to the detection value of the water injection flow sensor 11, and then calculates the water amount of the clean water tank 1 after water injection according to the existing water amount of the clean water tank 1 detected before water injection, wherein the water amount is matched with the clean water demand of the sewage tank 2. The controller 3 calculates the total amount of water discharged from the clean water tank 1 according to the detection value of the discharge flow sensor 12, and then calculates the remaining amount of water in the clean water tank 1 after water discharge according to the amount of water in the clean water tank 1 detected before water injection, wherein the remaining amount of water matches with the required amount of clean water in the sewage tank 2.
Before water is filled, the existing water quantity of the clear water tank 1 can be judged by arranging a flow sensor on a water outlet pipe for supplying water to the toilet stool, the total water quantity of the clear water tank 1 from the last water filling to the current water filling is detected, and the existing water quantity of the clear water tank 1 before the current water filling is calculated according to the water quantity of the clear water tank 1 after the last water filling or water discharging.
A sewage discharge pipe 13 is connected to the sewage tank 2, the other end of the sewage discharge pipe 13 is connected to a toilet (not shown in the figure), a sewage discharge electromagnetic valve 14 is connected to the sewage discharge pipe 13 in series, the sewage discharge electromagnetic valve 14 is connected to the controller 3, a sewage discharge switch 22 is arranged on the toilet, and sewage discharged from the toilet enters the sewage tank 2 through the sewage discharge pipe 13.
Be connected with the device of decontaminating that is used for emptying filth in the filth case 2 on filth case 2, the device of decontaminating includes one or two clear dirty pipe 15, the entry end of clear dirty pipe 15 stretches into the bottom to filth case 2, in order to accomplish the emptying of filth case 2 when the decontamination, be provided with the detection device of decontaminating on every clear dirty pipe 15, the detection device of decontaminating adopts the sensor 16 of decontaminating, the sensor 16 of decontaminating is used for detecting the filth in the filth case 2 whether by the evacuation, the liquid level in the filth case 2 is in 0 position or is close 0 position this moment promptly. The purge sensor 16 is connected to the controller 3 and transmits a purge signal to the controller 3 after purging.
In this embodiment, the required amount of the clean water in the sewage tank 2 and the existing water amount in the clean water tank 1 are calculated as follows:
the controller 3 is provided with a counting unit for counting the action times of the blowdown electromagnetic valve 14, an emptying signal is transmitted to the controller 3 by the blowdown sensor 16 after the blowdown tank 2 is emptied, at the moment, the amount of the sewage in the blowdown tank 2 is 0, the controller 3 counts in an accumulated way once when the blowdown electromagnetic valve 14 is actuated once during travel, the existing sewage capacity in the blowdown tank 2 when water can be injected can be calculated by the controller 3 according to the blowdown amount (flushing water amount + blowdown amount according to medical data of 0.52 liter/time) and the accumulated blowdown times, the residual capacity of the blowdown tank 2 is calculated according to the capacity of the blowdown tank 2, and the controller 3 sets the residual capacity of the blowdown tank 2 to be the required clear water amount. In order to more accurately control the required amount of clean water and further reduce the water storage amount of the clean water tank 1, the number of times of pollution discharge can be calculated according to the residual capacity of the sewage tank 2, the required amount of clean water for washing is further calculated as the required amount of clean water for washing is certain, and finally the accurate required amount of clean water for the sewage tank is calculated.
After the train arrives at the station, before water is injected, the controller 3 compares the calculated clear water demand of the sewage tank 2 with the residual existing water amount of the clean water tank 1, when the controller 3 monitors that the clear water demand of the sewage tank 2 is smaller than the existing water amount of the clean water tank 1, the controller 3 controls the drainage electromagnetic valve 5 in the drainage device to be opened, the clean water tank 1 starts to drain, and the residual water amount is drained through the drainage pipe 4. When the amount of water discharged from the clean water tank 1 to the clean water tank 1 matches the required amount of clean water in the sewage tank 2, the controller 3 sends a command to close the water discharge solenoid valve 5 and stop discharging water.
When the controller 3 monitors that the clear water demand of the sewage tank is larger than the existing water quantity of the clean water tank 1, the water discharge pipe 4 discharges no water after arriving at the station, at the moment, water is injected into the clean water tank 1 through the water injection pipe 6, the water injection flow sensor 7 transmits water injection quantity information to the controller 3, an operator can conveniently monitor the water injection quantity while injecting water, and the water injection is stopped until the water quantity of the clean water tank 1 is matched with the clear water demand of the sewage tank 2.
When the water injection amount reaches a preset value, the method further comprises the step of judging that the water injection amount of the clean water tank 1 reaches the clean water demand of the sewage tank 2, in the embodiment, the step is specifically that when the water amount of the clean water tank 1 reaches the clean water demand of the sewage tank 2, if water injection is continued, the controller 3 controls the water discharge electromagnetic valve 5 to be opened, redundant water amount is discharged through the water discharge pipe 4, at the moment, an operator sees that water is discharged from the water discharge pipe 4, the water injection operation can be stopped, and the water injection amount of the clean water tank 1 is effectively prevented from exceeding the standard.
If controller 3 damages or water injection flow sensor 11, when water pressure in clear water tank 1 can't be monitored to drainage flow sensor 12 damage, still continue to annotate to the inside after clear water tank 1 fills up water, will certainly make water injection equipment pressure increase, cause water injection equipment's damage, in order to avoid this kind of condition, upper portion at clear water tank 1 in this embodiment has set up an overflow pipe 7, the entry setting of overflow pipe 7 is on clear water tank 1's box upper portion, in order to simplify the structure, the exit end of overflow pipe 7 inserts in the drain pipe 4. When water injection flow sensor 11 damaged, clear water tank 1 unnecessary water can be followed overflow pipe 7 and discharged after filling, and it can to stop the water injection this moment, has effectively avoided the condition that causes water injection equipment to damage because water injection pressure is too big.
Of course, if the volume of the clean water tank 1 is smaller than that of the sewage tank 2, the residual accommodating capacity of the sewage tank 2 cannot be reached even if the clean water tank 1 is filled, at this time, the filled water directly overflows outwards through the overflow pipe 7, and at this time, the water filling is stopped.
For the toilet installed on the railway vehicle, the series of activities are all performed after the vehicle stops, in the embodiment, the output end of the vehicle speed detection device 10 is connected to the controller 3, and the series of activities are started only when the controller 3 detects that the speed signal sent by the vehicle speed detection device 10 is 0.
Example three:
as shown in fig. 3, the difference from the second embodiment is that in the second embodiment, a water injection flow sensor 11 installed on the water injection pipe 6 is eliminated, and a full liquid level sensor 17 is added to the upper end of the clear water tank 1 to detect whether the clear water tank 1 is full of water. Meanwhile, a dirt cleaning sensor 16 connected in series with the dirt cleaning pipe 15 is eliminated, an empty tank liquid level sensor 18 is additionally arranged at the bottom of the dirt tank 2 and used for detecting whether the dirt tank 2 is emptied, an empty tank signal is transmitted to the controller 3 through the empty tank liquid level sensor 18, the controller 3 accumulates and counts the action times of the dirt discharging electromagnetic valve 14 during traveling, and therefore the clear water requirement of the dirt tank 2 is calculated.
When the controller 3 monitors that the clear water demand of the sewage tank 3 is larger than the existing water quantity of the clean water tank 1, the drain pipe 4 is drained when the station arrives, at the moment, water is filled into the clean water tank 1 through the two water filling pipes 6 until the full liquid level is reached, at the moment, the full liquid level sensor 17 transmits the full liquid level to the controller 3, when the controller 3 monitors that the clear water tank 1 is filled with water until the full liquid level is reached, the drain electromagnetic valve 5 is controlled to be opened, the draining action is started, the surplus water is drained, the drain quantity is calculated by the drain flow sensor 12 in the draining process, the surplus water quantity of the clean water tank 1 is calculated accordingly, and when the surplus water quantity of the clean water tank 1 is drained from the full liquid level to the clear water demand of the sewage tank 2, the drain electromagnetic valve 5 is cut off, and the draining is stopped.
Example four:
as shown in fig. 4, the difference from the above embodiment is that a water injection solenoid valve 19 is connected in series to the water injection pipe 6, the water injection solenoid valve 19 is connected to the controller 3, and the on/off of the water injection solenoid valve 19 is automatically controlled by the controller 3. The water injection pipes 6 are provided with two, the outlet ends of the two water injection pipes 6 are connected into the water injection electromagnetic valve 19 after being gathered, and the two water injection pipes 6 are respectively provided with a one-way valve 20 for limiting the water flow direction of the water injection pipes 6 and avoiding the water from flowing out of the other water injection pipe 6 when water is injected. A full liquid level sensor 17 is also provided on the clear water tank 1 for transmitting a full liquid level signal to the controller 3 when the clear water tank 1 reaches full liquid.
In this embodiment, in order to simplify the system architecture, a water pipe is inserted jointly to the exit end of water injection pipe 6 and the entry end of drain pipe 4, and the water pipe is connected with clear water tank 1, has concatenated flow sensor 21 on the water pipe, and this flow sensor 21 can detect water injection flow and can detect drainage flow again, and flow sensor 21 is connected with controller 3. Of course, a water injection flow sensor and a water discharge flow sensor may be respectively connected in series to the water injection pipe 6 and the water discharge pipe 4 to respectively detect the water injection flow and the water discharge flow.
In this embodiment, the required amount of the clean water in the sewage tank 2 and the existing water amount in the clean water tank 1 are calculated as follows:
the flow sensor 21 transmits the detected flow signal to the controller 3, and the controller 3 performs calculation analysis on the received flow signal. The controller 3 calculates the water injection amount of the clean water tank 1 according to the detection value of the flow sensor 21 during water injection, and then calculates the water amount of the clean water tank 1 after water injection according to the existing water amount of the clean water tank 1 detected before water injection, wherein the water amount is matched with the clean water demand of the sewage tank 2. The total discharged water quantity of the clean water tank 1 is calculated according to the detection value of the flow sensor 21 during water discharging, and the residual water quantity of the clean water tank 1 after water discharging is calculated according to the existing water quantity of the clean water tank 1 detected before water filling, wherein the residual water quantity is matched with the clean water demand of the sewage tank 2.
Before water is filled, the existing water quantity of the clear water tank 1 can be judged by arranging a flow sensor on a water outlet pipe for supplying water to the toilet stool, the total water quantity of the clear water tank 1 from the last water filling to the current water filling is detected, and the existing water quantity of the clear water tank 1 before the current water filling is calculated according to the water quantity of the clear water tank 1 after the last water filling or water discharging.
A sewage discharge pipe 13 is connected to the sewage tank 2, the other end of the sewage discharge pipe 13 is connected to a toilet (not shown in the figure), a sewage discharge electromagnetic valve 14 is connected to the sewage discharge pipe 13 in series, the sewage discharge electromagnetic valve 14 is connected to the controller 3, a sewage discharge switch 22 is arranged on the toilet, and sewage discharged from the toilet enters the sewage tank 2 through the sewage discharge pipe 13.
Be connected with the device of decontaminating that is used for emptying filth in the filth case 2 on filth case 2, the device of decontaminating includes one or two clear dirty pipes (not shown in the figure) and the detection device of decontaminating, and the entry end of clear dirty pipe stretches into the bottom to filth case 2 to accomplish emptying of filth case 2 when decontaminating. In this embodiment, the trash removal detection device adopts the empty level sensor 18 disposed at the bottom of the trash box 2, and after the trash box 2 is emptied, the empty level signal is transmitted to the controller 3.
In this embodiment, the controller 3 has a counting unit for counting the number of times of operation of the drain solenoid valve 14, after the sewage tank 2 is emptied at a station, the empty level sensor 18 transmits an emptying signal to the controller 3, at this time, the amount of the sewage in the sewage tank 2 is 0, the controller 3 counts the accumulated amount of the sewage in the course of each drain operation, that is, the drain solenoid valve 14 operates each time in the course of a trip, the controller 3 calculates the existing sewage capacity in the sewage tank 2 when water can be filled according to the amount of the sewage (the amount of flushing water + the amount of drain, which is 0.52 liters/time according to medical data) and the accumulated number of times of the drain operation, calculates the remaining capacity of the sewage tank 2 according to the capacity of the sewage tank 2, and the controller 3 sets the remaining capacity of the sewage tank 2 to the required clean water. In order to more accurately control the required amount of clear water and further reduce the water storage amount of the clear water tank 1, the number of times of pollution discharge can be calculated according to the residual capacity of the sewage tank 2, and the required amount of clear water for washing is further calculated as the required amount of clear water for washing is constant every time, and finally the accurate required amount of clear water of the sewage tank 2 is calculated.
After the train arrives at the station, before water is injected, the controller 3 compares the calculated clear water demand of the sewage tank 2 with the residual existing water amount of the clean water tank 1, when the controller 3 monitors that the clear water demand of the sewage tank 2 is smaller than the existing water amount of the clean water tank 1, the controller 3 controls the drainage electromagnetic valve 5 in the drainage device to be opened, the clean water tank 1 starts to drain, and the residual water amount is drained through the drainage pipe 4. When the amount of water discharged from the clean water tank 1 to the clean water tank 1 matches the required amount of clean water in the sewage tank 2, the controller 3 sends a command to close the water discharge solenoid valve 5 and stop discharging water.
When the controller 3 monitors that the clear water demand of the sewage tank is larger than the existing water quantity of the clean water tank 1, the water discharge pipe 4 discharges no water after arriving at the station, at the moment, water is injected into the clean water tank 1 through the water injection pipe 6, the flow sensor 21 transmits water injection quantity information to the controller 3, an operator can conveniently monitor the water injection quantity while injecting water, until the water quantity of the clean water tank 1 is matched with the clear water demand of the sewage tank 2, the controller 3 sends an instruction to close the water injection electromagnetic valve 19, and water injection is stopped.
When the water injection amount reaches the preset value, the method further comprises the step of judging that the water injection amount of the clean water tank 1 reaches the clean water demand amount of the sewage tank 2, in the embodiment, the step is specifically that a pressure control device for monitoring the water pressure in the water injection pipe 6 after the water injection electromagnetic valve 19 is closed is arranged on the water injection pipe 6, preferably, the pressure control device is a pressure release valve 23 arranged on the water injection pipe 6, the pressure release valve 23 is arranged on the inlet side of the water injection electromagnetic valve 19, and the outlet end of the pressure release valve 23 is connected to the drain pipe 4. When water is filled, the pressure relief valve 23 is closed due to the low pressure in the water injection pipe 6, and when the water injection solenoid valve 19 is closed, the pressure in the water injection pipe 6 is increased and exceeds the pressure set by the pressure relief valve 23, at this time, the pressure relief valve 23 is opened, and water flows into the drain pipe 4 from the pressure relief valve 23 and is finally discharged. The operator sees the drain 4 draining, at which point the filling can be stopped.
In this embodiment, an overflow pipe 7 is also arranged at the upper part of the clean water tank 1, and the outlet end of the overflow pipe 7 is connected into the drain pipe 4. When the flow sensor 21 is damaged, the excess water in the clean water tank 1 after being filled can be discharged from the overflow pipe 7, and the water injection is stopped at the moment, so that the condition that the water injection equipment is damaged due to the fact that the water injection pressure is too large is effectively avoided.
Of course, if the volume of the clean water tank 1 is smaller than the volume of the sewage tank 2, the residual accommodating capacity of the sewage tank 2 cannot be reached even if the clean water tank 1 is filled, and of course, if the volume of the clean water tank 1 is smaller than the volume of the sewage tank 2, the residual accommodating capacity of the sewage tank 2 cannot be reached even if the clean water tank 1 is filled, at this time, the full liquid level sensor 17 will act to transmit a full water signal to the controller 3, at this time, the controller 3 controls the water filling electromagnetic valve 19 to be closed, and the pressure relief valve 23 is opened due to the pressure rise in the water filling pipe to overflow outwards through the water drainage pipe 4, and at this time, the water filling is stopped. If the full liquid level sensor 17 is damaged, the full water can directly overflow through the overflow pipe 7 at the moment, and the water injection is stopped at the moment.
For the toilet installed on the railway vehicle, the series of activities are all performed after the vehicle stops, in the embodiment, the output end of the vehicle speed detection device 15 is connected to the controller 3, and the series of activities are started only when the controller 3 detects that the speed signal sent by the vehicle speed detection device 15 is 0.
Example five:
as shown in fig. 5, the difference from the fourth embodiment is that in the present embodiment, the pressure release valve 23 is eliminated, the water injection solenoid valve 19 is replaced by a two-position three-way solenoid valve, one path of the water injection pipe 6 is connected to the clean water tank 1 through the flow sensor 21, and the other path is connected to the water discharge pipe 4.
At this time, the two-position three-way electromagnetic valve has the function equivalent to that of the pressure release valve 23, when the water volume of the clean water tank 1 reaches the residual containing volume of the sewage tank 2, the controller 3 controls the two-position three-way electromagnetic valve to close the water injection passage of the clean water tank 1, then the water flows out from the outlet of the two-position three-way electromagnetic valve connected with the drain pipe 4, and the operator can stop water injection when seeing that the drain pipe 4 has water overflow.
Example six:
as shown in fig. 6, the fourth embodiment is different from the fourth embodiment in that the relief valve 23 is eliminated, the pressure indicator 24 is provided on the water injection pipe 6, the pressure indicator 24 is connected to the controller 3, and the pressure indicator 24 is provided on the inlet side of the water injection solenoid valve 19. When the water quantity of the clean water tank 1 reaches the requirement, the water injection electromagnetic valve 19 is closed, the pressure in the water injection pipe 6 is increased, the pressure display 24 displays the current pressure and can give an alarm through the controller 3, and at the moment, the water injection can be stopped.
Similar solutions can be derived from the solution given in the figures, as described above. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.
Claims (9)
1. A toilet control method is characterized by comprising a clean water tank, a sewage tank and a controller, wherein the clean water tank is connected with a water injection device and a water discharge device, and the method specifically comprises the following steps:
monitoring the clear water demand of a sewage tank and the existing water quantity of a clear water tank;
controlling water injection or water drainage of the clean water tank according to the clean water demand of the sewage tank until the water quantity of the clean water tank is matched with the clean water demand of the sewage tank;
when the controller monitors that the required amount of the clean water of the sewage tank is smaller than the existing water amount of the clean water tank, the controller controls the clean water tank to start drainage action without filling water into the clean water tank, and the excess water amount in the clean water tank is drained through the drain pipe; when the controller monitors that the clear water requirement of the sewage tank is larger than the existing water quantity of the clear water tank, the water is not discharged from the drain pipe after the controller arrives at the station, and water is injected into the clear water tank through the water injection pipe at the moment;
after the water injection is finished, the step of judging that the water injection quantity of the clean water tank reaches the clean water demand quantity of the sewage tank is further included, specifically, when the water injection quantity of the clean water tank reaches a preset value, the controller controls the drainage device to be opened, the drainage device flows out of water, and then the water injection quantity of the clean water tank is judged to reach the clean water demand quantity of the sewage tank;
the step of judging that the water injection quantity of the clean water tank reaches the clean water demand quantity of the sewage tank is specifically that a pressure control device is arranged on a water injection pipeline, when the water injection quantity of the clean water tank reaches a preset value, the water injection device is closed, the pressure control device controls the connection of the water injection pipeline and a drainage device when the pressure in the water injection pipeline reaches a limit value, the drainage device discharges water, and then the water injection quantity of the clean water tank reaches the clean water demand quantity of the sewage tank is judged; or, a two-position three-way electromagnetic valve is arranged in the water injection pipeline, one pipeline is connected with the water injection pipeline and is connected with the clean water tank, the other pipeline is connected into the water discharging device, when the water injection amount of the clean water tank reaches a preset value, the connection with the water injection pipeline is cut off, the water discharging device is connected at the same time, the water discharging device is used for discharging water, and then the water injection amount of the clean water tank reaches the clean water requirement amount of the sewage tank;
the output end of the vehicle speed detection device is connected into the controller, only when the controller detects that a speed signal sent by the vehicle speed detection device is 0, the series of activities are started, and when the speed signal sent by the vehicle speed detection device is not 0, devices for monitoring the amount of sewage in the sewage tank and the amount of water in the clean water tank do not work.
2. A toilet control method according to claim 1, characterized in that: in the first step, the determination step of the clear water requirement of the sewage tank comprises the steps of calculating the existing capacity of the sewage tank by detecting the internal pressure of the sewage tank, calculating the residual capacity of the sewage tank by the capacity of the sewage tank, and determining the residual capacity of the sewage tank as the clear water requirement of the sewage tank; or, the times of the residual capacity of the sewage tank for sewage disposal are calculated according to the sewage disposal amount of each sewage disposal, and then the clear water requirement of the sewage tank is calculated according to the times of the sewage disposal.
3. A toilet control method according to claim 1, characterized in that: in the first step, the determination step of the clear water requirement of the sewage tank is that the existing capacity of the sewage tank is calculated through the accumulated sewage discharge times, the residual capacity of the sewage tank is calculated through the capacity of the sewage tank, and the residual capacity of the sewage tank is determined as the clear water requirement of the sewage tank; or, the times of the residual capacity of the sewage tank for sewage disposal are calculated according to the sewage disposal amount of each sewage disposal, and then the required amount of the clean water is calculated according to the times of the sewage disposal.
4. A toilet control method according to claim 3, characterized in that: the step of emptying the waste tank is included before accumulating the number of sewerage discharges.
5. A toilet control method according to claim 1, characterized in that: in the first step, the existing water amount of the clean water tank is determined by calculating the existing water amount of the clean water tank by detecting the internal pressure of the clean water tank.
6. A toilet control method according to claim 1, characterized in that: in the first step, the existing water quantity of the clean water tank is determined by calculating the existing water quantity of the clean water tank by detecting the total water output quantity of the clean water tank during two times of water filling.
7. A toilet control method according to claim 1, characterized in that: in step two, the water injection amount and the water discharge amount of the clean water tank are determined by detecting the internal pressure change of the clean water tank.
8. A toilet control method according to claim 1, characterized in that: in the second step, the water injection amount and the water discharge amount of the clean water tank are determined by flow sensors arranged on the water injection pipe and the water discharge pipe.
9. A toilet control method according to claim 1, characterized in that: the pressure control device is a pressure relief valve.
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| CN201711355097.8A CN108166585B (en) | 2017-12-16 | 2017-12-16 | Toilet control method |
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| CN201711355097.8A CN108166585B (en) | 2017-12-16 | 2017-12-16 | Toilet control method |
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| CN108166585B true CN108166585B (en) | 2021-03-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2316632C2 (en) * | 2005-12-07 | 2008-02-10 | Валерий Иванович Ваганов | Vacuum toilet system |
| CN201214423Y (en) * | 2008-05-16 | 2009-04-01 | 南车四方机车车辆股份有限公司 | Rail vehicle dirt collection system |
| DE102009051351B4 (en) * | 2009-10-30 | 2014-07-10 | Siemens Aktiengesellschaft | Rail vehicle with fill level monitoring of a wastewater tank |
| CN201989798U (en) * | 2010-07-16 | 2011-09-28 | 南车青岛四方机车车辆股份有限公司 | Device for collecting waste washing water of rail vehicle |
| EP2484574B1 (en) * | 2011-02-07 | 2013-08-07 | ALSTOM Transport SA | A water storage and distribution system having a water tank by pass |
| KR101575958B1 (en) * | 2014-05-16 | 2015-12-10 | 한국철도공사 | Water supply system of railway vehicle |
| CN204956482U (en) * | 2015-09-22 | 2016-01-13 | 杭州冷倍冠科技有限公司 | Train moisturizing blowdown control system |
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