CN108892281B - Ash water recovery system for railway passenger car - Google Patents
Ash water recovery system for railway passenger car Download PDFInfo
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- CN108892281B CN108892281B CN201810928287.2A CN201810928287A CN108892281B CN 108892281 B CN108892281 B CN 108892281B CN 201810928287 A CN201810928287 A CN 201810928287A CN 108892281 B CN108892281 B CN 108892281B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 292
- 238000011084 recovery Methods 0.000 title claims abstract description 26
- 239000010797 grey water Substances 0.000 claims abstract description 79
- 238000011010 flushing procedure Methods 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 16
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000010865 sewage Substances 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 241000894006 Bacteria Species 0.000 claims description 4
- 238000000108 ultra-filtration Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000004064 recycling Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention provides a grey water recovery system for a railway passenger car, which comprises an grey water tank, a filter, a water booster and an ultrafilter, wherein the grey water tank is connected with the filter; a first one-way valve is arranged on the pipeline between the ash water tank water outlet and the filter water inlet; a four-way connecting piece is arranged between the filter and the water booster, one end of the four-way connecting piece is connected with the water outlet of the filter, the other end of the four-way connecting piece is connected with the water booster, the third end of the four-way connecting piece is connected with the water inlet of the ultrafilter through a second one-way valve, and the fourth end of the four-way connecting piece is connected with the water outlet of the ultrafilter through a third one-way valve; a first pneumatic valve is arranged between the third one-way valve and the water outlet of the ultrafilter, a second pneumatic valve is arranged at the water outlet at the bottom of the ultrafilter, and a third pneumatic valve is arranged at the water outlet at the bottom of the ultrafilter; and a first solenoid valve controlling the water booster, a second solenoid valve controlling the first and second pneumatic valves, and a third solenoid valve controlling the third pneumatic valve. The beneficial effects are as follows: meanwhile, the filtering and back flushing functions can be realized, and the using function of the ash water tank is greatly optimized.
Description
Technical Field
The invention relates to a grey water recovery system, in particular to a grey water recovery system for a railway carriage.
Background
In the 21 st century, the railway industry of China develops rapidly, more and more people choose to travel on the railway, but the problems of environmental pollution, water resource shortage and the like are accompanied, and the problem of water recycling is brought up to schedule.
Generally, a large amount of water is used in the production of chemical industry, a sewage recycling system is very common, chemical enterprises are generally equipped with sewage tanks with large reserves to temporarily store discharged sewage, and the sewage is converted into reclaimed water meeting the standard through chemical and physical means and then is applied to daily production activities.
In the toilet of common motor train units such as 'Harmonious number', the most basic water supply system in the motor train unit is provided, and the common water supply system is provided with a hand washing basin, a sitting type toilet and a squatting type toilet, so that a large number of people in the motor train unit can enjoy the convenience provided by the water supply system every day, but few people can have water saving consciousness. Therefore, the recycling of water resources is the only means for ensuring the normal supply of train water.
At present, a common grey water temporary storage tank only temporarily stores water from a toilet basin, the liquid level meter detects the height of the liquid level, and after the liquid level meter reaches a certain height, the liquid level meter sends out a liquid level information electric signal to open a slide valve, so that the grey water tank is emptied, and the operation principle of the existing vehicle-mounted grey water tank is that of the basic operation. The water for washing hands is directly discharged without treatment, so that the waste phenomenon of water resources exists, and the recycling of the water resources can not be realized.
The invention patent with the application number of CN201710164819.5 discloses a railway carriage grey water recycling system, which comprises: the device comprises a controller, a grey water tank, a water supplementing valve, a filter, a three-way pipe, a discharge valve, a toilet system, an electromagnetic valve, a water pump, a filtering pressure reducing valve group, an energy accumulator, an air pipe and a water pipe, wherein the filter and the water supplementing valve are arranged in the grey water tank; the water inlet of the discharge valve is connected with the ash water tank through a three-way pipe; the water inlet of the water pump is connected with the water outlet of the ash water tank through a water pipe, and the water outlet is connected with the water inlet of the energy accumulator; the water outlet of the energy accumulator is connected with a flushing water interface of the excrement collecting system, and a pressure sensor is arranged on the water outlet of the energy accumulator; the air inlet of the electromagnetic valve is connected with the filtering pressure reducing valve group through an air pipe; the discharge valve and the water pump are controlled by electromagnetic valves.
Although the invention can realize the recycling of the grey water, the water recycled by the grey water recycling system disclosed by the invention is not subjected to sterilization, primary filtration and ultrafiltration, and the grey water tank and the filter tank are not subjected to timely cleaning treatment, so that the water recycled by the grey water recycling system disclosed by the invention has low availability and short service life of the recycling system.
Therefore, it is necessary to develop a grey water recovery system that can sterilize, primarily filter, and ultrafiltrate grey water, and at the same time can timely clean the grey water tank and filter, and has a long service life.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a grey water recovery system for a railway passenger car.
The invention provides a grey water recovery system for a railway passenger car, which has the technical scheme that: comprises an ash water tank, a filter, a water booster and an ultrafilter; a first one-way valve is arranged on a pipeline between the ash water tank water outlet and the filter water inlet; a four-way connecting piece is arranged between the filter and the water booster, one end of the four-way connecting piece is connected with a water outlet of the filter, the other end of the four-way connecting piece is connected with the water booster, the third end of the four-way connecting piece is connected with a water inlet of the ultrafilter through a second one-way valve, and the fourth end of the four-way connecting piece is connected with a water outlet of the ultrafilter through a third one-way valve; a first pneumatic valve is arranged between the third one-way valve and the water outlet of the ultrafilter, a second pneumatic valve is arranged at the water outlet at the bottom of the ultrafilter, and a third pneumatic valve is arranged at the water outlet at the bottom of the ultrafilter; the system is also provided with a first electromagnetic valve for controlling the water booster, a second electromagnetic valve for controlling the first pneumatic valve and the second pneumatic valve, and a third electromagnetic valve for controlling the third pneumatic valve; an ozone generator is arranged outside the ash water tank.
The invention provides a grey water recovery system for a railway passenger car, which also comprises the following auxiliary technical schemes:
Wherein, be provided with level sensor in the ash water tank.
Wherein, be provided with the through-hole on the grey water tank, ozone that ozone generator produced is through the through-hole enters into in the grey water tank.
Wherein a first bent pipe is arranged between the first one-way valve and the water inlet of the water filter, a second bent pipe is arranged between the water filter and the four-way connecting piece, a third bent pipe is arranged between the first pneumatic valve and the water outlet of the ultrafilter, and a fourth bent pipe is arranged between the ultrafilter and the second pneumatic valve.
Wherein, the filter is a steel wire mesh filter.
Wherein, ozone generator, grey water tank, filter, water booster, ultrafilter, first solenoid valve, second solenoid valve and third solenoid valve all set up in the box.
Wherein, be provided with the outlet in the box, the outlet is used for the drainage pipe that the water that the entire system leaked through connecting in outlet department is discharged.
The box body is also provided with a grey water inlet, and the grey water inlet is communicated with the grey water box.
The bottom of the box body is also provided with a sewage outlet which is communicated with the ash water tank, and impurities are discharged from the sewage outlet through a sewage pipeline connected with the sewage outlet.
Wherein, be provided with manual valve on the drain.
The implementation of the invention comprises the following technical effects:
The grey water recovery system for the railway passenger car can integrate system components in the system, can realize filtering and back flushing functions, and greatly optimizes the use function of the grey water tank; the ozone generator can kill most common bacteria in the water tank, so that secondary pollution to water quality is avoided, the treated reclaimed water can reach the sanitary standard, and the basic use requirement of toilet flushing is met; the water filtered by the ash water tank can be used for flushing the toilet bowl, so that water resources are greatly saved, the utilization rate of the water resources is improved, and the energy-saving and environment-friendly purposes are realized; meanwhile, the addition of the back flushing function can also improve the service life of a single valve body, increase the service time of system components and save the cost.
Drawings
Fig. 1 is a schematic structural view of a grey water recovery system for a railway carriage of the present invention.
FIG. 2 is a schematic diagram of a filtration process performed by the grey water recovery system for a railway carriage of the present invention, wherein the direction of the arrow in the figure is the direction of the water flow.
FIG. 3 is a schematic diagram of a backwash process performed by a grey water recovery system for a rail bus of the present invention, wherein the direction of the arrow in the figure is the direction of the water flow.
In the figure, the ash water tank, the 2-filter, the 3-water booster, the 4-ultrafilter, the 51-first one-way valve, the 52-second one-way valve, the 53-third one-way valve, the 61-first electromagnetic valve, the 62-second electromagnetic valve, the 63-third electromagnetic valve, the 71-first pneumatic valve, the 72-second pneumatic valve, the 73-third pneumatic valve, the 8-ozone generator, the 9-liquid level sensor, the 101-first elbow, the 102-second elbow, the 103-third elbow, the 104-fourth elbow, the 20-box, the 201-drain outlet, the 202-drain pipeline, the 203-ash water inlet, the 204-drain outlet, the 205-drain pipeline, the 206-manual valve, the 11-ash water tank water outlet, the 12-ash water tank bottom water return, the 13-through hole, the 21-filter water inlet, the 22-filter water outlet, the 23-filter bottom water outlet, the 41-ultrafilter water inlet, the 42-ultrafilter water outlet, and the 43-ultrafilter bottom water outlet.
Detailed Description
The invention will now be described in detail with reference to the following examples and the accompanying drawings, it being pointed out that the examples described are intended only to facilitate an understanding of the invention and are not intended to be limiting in any way.
The orientation of the present application is described above, below, left and right by referring to the drawings, and is not limited to the protection scope.
The invention provides a grey water recovery system for a railway passenger car, which is shown in figures 1-3 and comprises a grey water tank 1, a filter 2, a water booster 3 and an ultrafilter 4; a first one-way valve 51 is arranged on a pipeline between the ash water tank water outlet 11 and the filter water inlet 21; a four-way connecting piece is arranged between the filter 2 and the water booster 3, one end of the four-way connecting piece is connected with the filter water outlet 22, the other end of the four-way connecting piece is connected with the water booster 3, the third end of the four-way connecting piece is connected with the ultrafilter water inlet 41 through a second one-way valve 52, and the fourth end of the four-way connecting piece is connected with the ultrafilter water outlet 42 through a third one-way valve 53; the ultrafilter bottom water outlet 43, the filter bottom water outlet 23 and the ash water tank bottom water return 12 are connected through a three-way connecting piece; a first pneumatic valve 71 is arranged between the third one-way valve 53 and the ultrafilter water outlet 42, a second pneumatic valve 72 is arranged at the ultrafilter bottom water outlet 43, and a third pneumatic valve 73 is arranged at the filter bottom water outlet; the system is also provided with a first solenoid valve 61 controlling the water booster 3, a second solenoid valve 62 controlling the first pneumatic valve 71 and the second pneumatic valve 72, and a third solenoid valve 63 controlling the third pneumatic valve 73; an ozone generator 8 is arranged outside the ash water tank; the filter 2 may be a steel wire mesh filter; the ultrafilter can be an activated carbon canister; the ratio between the water inlet aperture and the bottom water outlet aperture of the ultrafilter is 0.1-100.
The grey water recovery system for the railway passenger car provided by the embodiment of the invention can integrate system components in the system, can realize filtering and back flushing functions at the same time, and greatly optimizes the use function of the grey water tank; the ozone generator can kill most common bacteria in the water tank, so that secondary pollution to water quality is avoided, the treated reclaimed water can reach the sanitary standard, and the basic use requirement of toilet flushing is met; the water filtered by the ash water tank can be used for flushing the toilet bowl, so that water resources are greatly saved, the utilization rate of the water resources is improved, and the energy-saving and environment-friendly purposes are realized; meanwhile, the addition of the back flushing function can also improve the service life of a single valve body, increase the service time of system components and save the cost.
As shown in fig. 1-3, a liquid level sensor 9 is arranged in the ash water tank 1, and the liquid level sensor 9 is used for detecting the water level of the ash water tank 1.
Preferably, as shown in fig. 1, a through hole 13 is provided on the grey water tank 1, and ozone generated by the ozone generator 8 enters the grey water tank 1 through the through hole 13.
As shown in fig. 1-3, a first elbow 101 is disposed between the first check valve 51 and the water inlet 21 of the water filter, a second elbow 102 is disposed between the water filter 2 and the four-way connector 6, a third elbow 103 is disposed between the first pneumatic valve 71 and the water outlet 42 of the ultrafilter, and a fourth elbow 104 is disposed between the ultrafilter 4 and the second pneumatic valve 72.
Preferably, as shown in fig. 1-3, the grey water tank 1, the filter 2, the water booster 3, the ultrafilter 4, the ozone generator 8, the first solenoid valve 61, the second solenoid valve 62 and the third solenoid valve 63 are all arranged in the tank 20.
As shown in fig. 1, a drain port 201 is provided in the case, and the drain port 201 is used to drain water leaked from the entire system through a drain pipe 202 connected to the drain port 201.
Preferably, as shown in fig. 1-3, a grey water inlet 203 is further provided on the tank 20, the grey water inlet 203 is in communication with the grey water tank 1, and the grey water inlet 203 is used for collecting grey water into the grey water tank 1.
As shown in fig. 1-3, a drain 204 is further disposed at the bottom of the tank 20, the drain 204 is in communication with the grey water tank, and the drain 204 discharges impurities through a drain pipe 205 connected to the drain.
Preferably, a manual valve 206 is provided on the drain pipe 205, the manual valve 206 being used to control the discharge of impurities deposited in the greywater tank 1 and the drain pipe 205.
The grey water recovery system for the railway carriage can realize the filtering function and the back flushing function.
In the invention, the first one-way valve is an upward opening one-way valve, and the second one-way valve and the third one-way valve are both leftward opening one-way valves.
The working process for realizing the filtering function of the invention comprises the following steps:
The method comprises the steps that gray water enters the gray water tank, and after the liquid level of the gray water in the gray water tank reaches a set value of the liquid level, an ozone processor arranged in the tank body starts to carry out ozone treatment on the gray water stored in the gray water tank, so that bacteria in the gray water tank are killed; after the ozone treatment is finished, the first electromagnetic valve is closed to disconnect the air source of the water booster, the air pressure in the water booster is removed, the water booster starts to absorb water from the inside of the ash water tank, and the ash water reaches the filter through the pipeline of the filter under the drive of the water booster, so that the first layer of filtration is performed. After the water booster is filled with water, the first electromagnetic valve is opened to open an external air source of the water booster, high-pressure air enters the water booster, water in the water booster is discharged through pressure, the water enters the ultrafilter from the ultrafilter water inlet through a pipeline between the water booster and the ultrafilter, and the water flows into a reclaimed water temporary storage box (not shown in the figure) through ultrafiltration purification.
The working process for realizing the back flushing function of the invention comprises the following steps:
The purpose of adding the back flushing function is to clean the filter and the ultra-filter from residue impurities and the like caused by long-time filtration.
The back flushing still uses the water booster as a power source to absorb filtered relatively clean water to flush the filter and the ultrafilter, and the water source has three sources, namely water from the reclaimed water temporary storage tank, water from the filter and filtered water from the ultrafilter. The back flushing is divided into two steps:
And in the first step, the back flushing function of the ultrafilter is performed. When the controller sends out a back flushing instruction, the first electromagnetic valve is closed to disconnect the air source of the water booster, the air pressure in the water booster is reduced and exhausted, and the water booster starts to absorb water (the water absorbed by the water booster is divided into three parts, wherein the first part is water stored in the ultrafilter and flows back into the water booster through the water outlet of the ultrafilter, the second part is water stored in the intermediate water temporary storage tank, of course, the water stored in the intermediate water temporary storage tank needs to enter the ultrafilter first and then flows back into the water booster through the water outlet of the ultrafilter, and the third part is water stored in the filter and enters the water booster through the water outlet of the filter, and at the moment, the water outlet of the filter serves as a water inlet function. Meanwhile, the second electromagnetic valve is opened to control the first pneumatic valve arranged between the water outlet of the ultrafilter and the second one-way valve, and the air source of the second pneumatic valve arranged at the bottom of the ultrafilter is communicated with air, so that water flow absorbed into the water booster enters the ultrafilter through a pipeline arranged between the second pneumatic valve and the water inlet of the ultrafilter, and is instantaneously poured out under the action of pressure, and is discharged into the ash water tank through the ultrafilter and the water pipe at the bottom of the steel wire mesh filter, and the back flushing of the ultrafilter is completed.
And secondly, performing a back flushing function of the steel wire mesh filter. The water absorption process of the water booster is exactly the same as that of the first step, and will not be described here again. The difference is that the third electromagnetic valve is opened to control the air source of the third pneumatic valve arranged at the bottom of the filter to be communicated with air in the back flushing process of the filter, the water flow absorbed into the water booster enters the filter through the water outlet of the filter, at the moment, the water outlet of the filter serves as a water inlet, and the water is instantaneously poured out under the action of pressure and discharged into the ash water tank through the water pipe at the bottom of the filter, and the steel wire mesh filtering process is completed. The back flushing function is completely realized in the two steps.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (9)
1. The grey water recovery system for the railway passenger car is characterized by comprising an grey water tank, a filter, a water booster and an ultrafilter; a first one-way valve is arranged on a pipeline between the ash water tank water outlet and the filter water inlet; a four-way connecting piece is arranged between the filter and the water booster, one end of the four-way connecting piece is connected with a water outlet of the filter, the other end of the four-way connecting piece is connected with the water booster, the third end of the four-way connecting piece is connected with a water inlet of the ultrafilter through a second one-way valve, and the fourth end of the four-way connecting piece is connected with a water outlet of the ultrafilter through a third one-way valve; a first pneumatic valve is arranged between the third one-way valve and the water outlet of the ultrafilter, a second pneumatic valve is arranged at the water outlet at the bottom of the ultrafilter, and a third pneumatic valve is arranged at the water outlet at the bottom of the ultrafilter; the system is also provided with a first electromagnetic valve for controlling the water booster, a second electromagnetic valve for controlling the first pneumatic valve and the second pneumatic valve, and a third electromagnetic valve for controlling the third pneumatic valve; the filter is a steel wire mesh filter;
the grey water recovery system for the railway carriage has a filtering function and a back flushing function;
the working process of the filtering function is as follows: the method comprises the steps that gray water enters the gray water tank, and when the liquid level of the gray water in the gray water tank reaches a set value of the liquid level, an ozone generator arranged in the tank body starts to carry out ozone treatment on the gray water stored in the gray water tank so as to kill bacteria in the gray water tank; after the ozone treatment is finished, the first electromagnetic valve is closed to disconnect the air source of the water booster, the air pressure in the water booster is removed, the water booster starts to absorb water from the inside of the ash water tank, and the ash water firstly passes through a pipeline of the filter to reach the filter under the drive of the water booster, so that the first layer of filtration is performed; after the water booster is filled with water, a first electromagnetic valve is opened to open an external air source of the water booster, high-pressure air enters the water booster, water in the water booster is discharged through pressure, and part of water enters an ultrafilter from a water inlet of the ultrafilter through a pipeline between the water booster and the ultrafilter and flows into a reclaimed water temporary storage box after ultrafiltration purification;
The working process of the back flushing function is as follows: the back flushing uses a water booster as a power source to absorb filtered relatively clean water to flush the filter and the ultrafilter, and the water source has three sources, namely water from a reclaimed water temporary storage tank, water from the filter and filtered water from the ultrafilter; the back flushing is divided into two steps:
Firstly, performing a back flushing function of an ultrafilter; when the controller sends out a back flushing instruction, the first electromagnetic valve is closed to disconnect the air source of the water booster, the air pressure in the water booster is reduced and emptied, and the water booster starts to absorb water; the water absorbed by the water booster is divided into three parts: the first part is that the water stored in the ultrafilter flows back to the water booster through the water outlet of the ultrafilter; the second part is water stored in the temporary storage tank of reclaimed water, the water stored in the temporary storage tank of reclaimed water needs to enter the ultrafilter first, and then flows back to the water booster through the water outlet of the ultrafilter; the third part is that the water stored in the filter enters the water booster through the water outlet of the filter; meanwhile, the second electromagnetic valve is opened to control the first pneumatic valve arranged between the water outlet of the ultrafilter and the second one-way valve, and the air source of the second pneumatic valve arranged at the bottom of the ultrafilter is communicated with air, so that water flow absorbed into the water booster enters the ultrafilter through a pipeline arranged between the second pneumatic valve and the water inlet of the ultrafilter and is instantaneously poured out under the action of pressure, and is discharged into the ash water tank through the ultrafilter and a water pipe at the bottom of the ultrafilter, and the back flushing of the ultrafilter is completed;
step two, performing a back flushing function of the filter; when the controller sends out a back flushing instruction, the first electromagnetic valve is closed to disconnect the air source of the water booster, the air pressure in the water booster is reduced and emptied, and the water booster starts to absorb water; the water absorbed by the water booster is divided into three parts: the first part is that the water stored in the ultrafilter flows back to the water booster through the water outlet of the ultrafilter; the second part is water stored in the temporary storage tank of reclaimed water, the water stored in the temporary storage tank of reclaimed water needs to enter the ultrafilter first, and then flows back to the water booster through the water outlet of the ultrafilter; the third part is that the water stored in the filter enters the water booster through the water outlet of the filter; meanwhile, the third electromagnetic valve is opened to control the air source of the third pneumatic valve arranged at the bottom of the filter to be communicated with air, water flow absorbed into the water booster enters the filter through the water outlet of the filter and instantaneously spills out under the action of pressure, the water is discharged into the ash water tank through the water pipe at the bottom of the filter, and back flushing of the filter is completed;
the back flushing function is used for cleaning residue impurities in the filter and the ultrafilter caused by long-time filtration.
2. A grey water recovery system for a railway passenger car as claimed in claim 1, wherein: the ash water tank is internally provided with a liquid level sensor, and the liquid level sensor is used for detecting the water level of the ash water tank.
3. A grey water recovery system for a railway passenger car as claimed in claim 1, wherein: the dust water tank is provided with a through hole, an ozone generator is arranged outside the dust water tank, and ozone manufactured by the ozone generator enters the dust water tank through the through hole.
4. A grey water recovery system for a railway passenger car according to any one of claims 1 to 3, wherein: the filter is characterized in that a first elbow is arranged between the first one-way valve and the water inlet of the filter, a second elbow is arranged between the filter and the four-way connecting piece, a third elbow is arranged between the first pneumatic valve and the water outlet of the ultrafilter, and a fourth elbow is arranged between the ultrafilter and the second pneumatic valve.
5. A grey water recovery system for a railway passenger car according to any one of claims 1 to 3, wherein: the ozone generator, the ash water tank, the filter, the water booster, the ultrafilter, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are all arranged in the tank body.
6. The grey water recovery system for a railway car of claim 5, wherein: the box body is internally provided with a water outlet which is used for discharging water leaked by the whole system through a water discharge pipeline connected with the water outlet.
7. The grey water recovery system for a railway car of claim 5, wherein: still be provided with the grey water inlet on the box, the grey water inlet with grey water tank switch-on, the grey water inlet is used for collecting grey water in the grey water tank.
8. The grey water recovery system for a railway car of claim 7, wherein: the bottom of the box body is also provided with a drain outlet which is communicated with the ash water tank, and impurities are discharged from the drain outlet through a drain pipeline connected with the drain outlet.
9. The grey water recovery system for a railway car of claim 8, wherein: the manual valve is arranged on the sewage drain pipe and is used for controlling the discharge of impurities deposited in the ash water tank and the sewage drain pipe.
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| CN201810928287.2A CN108892281B (en) | 2018-08-15 | 2018-08-15 | Ash water recovery system for railway passenger car |
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| CN201810928287.2A CN108892281B (en) | 2018-08-15 | 2018-08-15 | Ash water recovery system for railway passenger car |
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| CN108892281B true CN108892281B (en) | 2024-05-28 |
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