CN110481581A - A kind of novel high and cold toilet of locomotive antifreeze emptying system - Google Patents

A kind of novel high and cold toilet of locomotive antifreeze emptying system Download PDF

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Publication number
CN110481581A
CN110481581A CN201910746285.6A CN201910746285A CN110481581A CN 110481581 A CN110481581 A CN 110481581A CN 201910746285 A CN201910746285 A CN 201910746285A CN 110481581 A CN110481581 A CN 110481581A
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CN
China
Prior art keywords
valve
water
locomotive
toilet
discharge pipe
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910746285.6A
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Chinese (zh)
Inventor
冯尚
甘滔
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ZHUZHOU CHECHENG LOCOMOTIVE PARTS Co Ltd
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ZHUZHOU CHECHENG LOCOMOTIVE PARTS Co Ltd
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Publication date
Application filed by ZHUZHOU CHECHENG LOCOMOTIVE PARTS Co Ltd filed Critical ZHUZHOU CHECHENG LOCOMOTIVE PARTS Co Ltd
Priority to CN201910746285.6A priority Critical patent/CN110481581A/en
Publication of CN110481581A publication Critical patent/CN110481581A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61DBODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D35/00Sanitation
    • B61D35/005Toilet facilities
    • B61D35/007Toilet facilities comprising toilet waste receiving, treatment, storage, disposal or removal devices

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)

Abstract

A kind of novel high and cold toilet of locomotive antifreeze emptying system, the antifreeze emptying system includes clear water tanks, just bucket, dirt box, washbasin and the temperature monitoring device being arranged in outside toilet, it is characterized in that, the clear water tanks are struggled against by discharge pipe line once being connected to, the dirt box is connected with discharge pipe line two, the discharge pipe line one is connected to discharge pipe line three and is connected to washbasin, one/bis-/tri- outside of discharge pipe line is provided with heating device one, and heating device two, water level monitoring device and temperature-detecting device are provided in the clear water tanks and dirt box;The antifreeze emptying system further includes high-pressure air source and compressed air line.The inventive structure is simple, antifreeze emptying effect stability, meets toilet of locomotive use in winter requirement well.

Description

A kind of novel high and cold toilet of locomotive antifreeze emptying system
Technical field
The present invention relates to railcar equipment correlative technology field, novel high and cold defended with locomotive more particularly, to a kind of Antifreeze emptying system between life.
Background technique
Extremely frigid zones traffic coverage is typical boreal climate, and the winter low temperature time is long, traditional high-pressure flush type toilet At low ambient temperatures without winterization system, leads to toilet component bursting by freezing leak, be not available.The prior art is unable to satisfy antifreeze It is required that high failure rate.
Summary of the invention
The purpose of the present invention is overcoming above-mentioned the deficiencies in the prior art, designed by the structure of complementarity, i.e., original high A kind of novel high and cold toilet of locomotive antifreeze emptying system is provided on the basis of pressure water-flushing toilet, meets toilet of locomotive Use in winter requirement.
The present invention adopts the following technical scheme:
A kind of novel high and cold toilet of locomotive antifreeze emptying system, the antifreeze emptying system include clear water tanks, just bucket, dirt Case, washbasin and the temperature monitoring device being arranged in outside toilet, the clear water tanks are struggled against by discharge pipe line once being connected to, described Dirt box is connected with discharge pipe line two, and the discharge pipe line one is connected to discharge pipe line three and is connected to washbasin, under the dirt box Trip is connected to sewage pipe, is provided with heating device one on the outside of the discharge pipe line one/bis-/tri- and sewage pipe, the clear water tanks and Heating device two, water level monitoring device and temperature-detecting device are provided in dirt box;
The antifreeze emptying system further includes high-pressure air source and compressed air line, the compressed air line include air inlet, Filtering pressure reducing valve, electrically-controlled valve one, electrically-controlled valve two, electrically-controlled valve three and ventilation pipe;
The heating device two, water level monitoring device, temperature-detecting device, filtering pressure reducing valve, electrically-controlled valve one, electrically-controlled valve two, electricity It controls valve three and controls connection with system controller.
Preferably, the washbasin lower end connects overflow pipe, and the dirt box is further connected with the flue gas leading led to outside toilet;
The clear water tanks side is connected with upper hose and water supply pipe, and the water supply pipe other end is inserted into the overflow pipe, described The upstream of upper hose is disposed with filter one and water supply valve;It struggles against through discharge pipe line once being connected to the clear water tanks bottom; The discharge pipe line one includes drainpipe one, is disposed with filter two, water tank main valve, check valve, sealing on drainpipe one Valve one, water pressurizer are ultimately connected to just struggle against;
Just blowdown valve is arranged in the bucket lower end, is connected to dirt box through sewage pipe, is arranged on the sewage pipe of the dirt box connection There is sewage valve;
The water supply valve, water tank main valve, check valve, water check valve one, water pressurizer, sewage valve, which are controlled with system controller, to be connected It connects.
Preferably, separately run between the filter one and water supply valve water lines two, the discharge pipe line two includes draining Pipe two and the flushing valve being arranged on drainpipe two, drainpipe two are finally connected to dirt box, the flushing valve and system controller Control connection.
Preferably, separately run between the check valve and water check valve one water lines three, the discharge pipe line three includes draining Pipe three and the water check valve two being arranged on drainpipe three, three terminal of drainpipe are provided with the dragon being mounted on the washbasin Head, the water check valve two are connected with system controller control.
Preferably, the high-pressure air source successively by the air inlet, filtering pressure reducing valve, electrically-controlled valve once to it is described bucket under The blowdown valve at end;Or electrically-controlled valve two is crossed from the filtering pressure reducing valve, is passed through the water pressurizer again;Or subtract from the filtering Pressure valve crosses electrically-controlled valve three, then the drainpipe one being passed through under the water tank main valve.
Preferably, exhaust-valve is connected between the discharge pipe line one and overflow pipe, the exhaust-valve is located at described Water tank main valve downstream, the check valve upstream, and control and connect with system controller.
Preferably, the heating device one selects heat tracing line, and the heating device two selects heating rod.
Preferably, the water level monitoring device include 15% liquid-level switch being arranged in clear water tanks, 70% liquid-level switch and 50% liquid-level switch, 90% liquid-level switch in dirt box are set.
Preferably, the temperature-detecting device uses temperature sensor.
Preferably, the toilet of locomotive ground is embedded with floor drain pipe, and the system controller is also connected with push button.
The beneficial effects of the present invention are: structure is simple, and exhaust emptying, antifreeze emptying system reliability is high, full well Sufficient toilet of locomotive use in winter requirement.
Detailed description of the invention
Fig. 1 is antifreeze emptying system structure diagram of the present invention.
1, clear water tanks;2, it just struggles against;3, dirt box;4, washbasin;5, drainpipe one;51, filter two;52, water tank main valve; 53, check valve;54, water check valve one;55 water pressurizers;6, drainpipe two;61, flushing valve;7, drainpipe three;71, water check valve two; 72, leading;8, sewage pipe;81, sewage valve;9, flue gas leading;10, upper hose;101, filter one;102, water supply valve;11, overflow Pipe;12, water supply pipe;13, floor drain pipe;14, sewage pipe;141, blowdown valve;15, ventilation pipe;16, air inlet;17, filtering decompression Valve;18, electrically-controlled valve one;19, electrically-controlled valve two;20, electrically-controlled valve three;21 exhaust-valves.
Specific embodiment
The present invention is further illustrated combined with specific embodiments below.
Embodiment 1:
As shown in Figure 1, a kind of novel high and cold toilet of locomotive antifreeze emptying system, toilet of locomotive are provided with temperature sensing outside Device, 15% liquid-level switch, 70% liquid-level switch, the heating rod, temperature sensor being provided in clear water tanks 1 are provided in dirt box 3 50% liquid-level switch, 90% liquid-level switch, heating rod, temperature sensor, 4 lower end of washbasin connect overflow pipe 11,3 downstream of dirt box It is connected to sewage pipe 8, sewage valve 81, control sewage discharge are provided on sewage pipe 8.
1 side of clear water tanks is connected with upper hose 10 and water supply pipe 12, and 12 other end of water supply pipe is inserted into overflow pipe 11, upper water The upstream of pipe 10 is disposed with filter 1 and water supply valve 102, and 1 bottom of clear water tanks is connected with drainpipe 1, drainpipe It is disposed with filter 2 51, water tank main valve 52, check valve 53, water check valve 1, water pressurizer 55 on one 5, finally connects To just struggling against 2, the 2 lower ends setting blowdown valve 141 that just struggles against, then it is connected to dirt box 3 through sewage pipe 14, the dirt box 3 also connects There is the flue gas leading 9 led to outside toilet.It is separately connected to drainpipe 26 between the filter 1 and water supply valve 102 of upper hose 10, It is provided with flushing valve 61 on drainpipe 26, is finally connected to dirt box 3, the cleaning for dirt box 3;The check valve of drainpipe 1 It is separately connected to drainpipe 37 between 53 and water check valve 1, water check valve 2 71 is provided on drainpipe 37, terminal is equipped with and is mounted on Faucet 72 on the washbasin 4.Heat tracing line is provided on the outside of drainpipe one 5,26,37 and sewage pipe 8, heat tracing line can be real Now automatic heated for controlling temperature, the toilet of locomotive ground are embedded with floor drain pipe 13.
Compressed air is about 0.5-0.8MPa, successively by air inlet 16, filtering pressure reducing valve 17, electricity in ventilation pipe 15 Control the blowdown valve 141 of valve 1 to 2 lower ends of just struggling against;Or electrically-controlled valve 2 19 is crossed from the filtering pressure reducing valve 17, is passed through again The water pressurizer 55;Or electrically-controlled valve 3 20, then the row being passed through under the water tank main valve 52 are crossed from the filtering pressure reducing valve 17 Water pipe 1.
Embodiment 2:
It washes one's hands operating mode: when opening faucet 72, system controller (selecting STM32 single-chip microcontroller) control water supply valve 102, water tank Main valve 52, check valve 53, water check valve 2 71 are opened, and water check valve 1 is closed, and clear water flow to washbasin 4, and buck is from overflow pipe 11 Outflow;When wash one's hands finish when, system controller controls water tank main valve 52 and closes, and open filtering pressure reducing valve 17, electrically-controlled valve 3 20, Compressed air is passed through from air inlet 16, is emptied to system.
Go to the toilet operating mode: when needs rinse just struggle against 2, when pressing the push button being connected with system controller, system control Device processed controls water supply valve 102, water tank main valve 52, check valve 53, water check valve 1, water pressurizer 55, blowdown valve 141 and opens, only Water valve 2 71 is closed, and Heisui River discharges into dirt box 3;After just bucket 2 rinses, system controller controls water tank main valve 52 and closes, And filtering pressure reducing valve 17, electrically-controlled valve one 18,2 19,3 20 are opened, compressed air is passed through from air inlet 16, is arranged system It is empty.
To sum up, after toilet use each time, water tank main valve 52 is closed, and air inlet 16 is passed through compressed air, corresponding to compress Air pipe line vacuum valve is opened, and to system evacuation, prevents pipeline from freezing destruction.
Embodiment 3:
The present embodiment includes room temperature mode and low temperature mode.
Antifreeze emptying system identifies outside air temperature by the outer temperature sensor in toilet, when environment temperature is lower than -5 DEG C, vehicle When interior temperature is lower than 5 DEG C, the toilet of room temperature mode issues low temperature mode instruction by controller and enters low temperature mode, to clear water tanks 1, dirt box 3 and opening with road heats, and when system controller controls heating rod heating temperature to 45 DEG C, powers off and keep constant temperature, Heat tracing line is heated to 45 DEG C automatically and keeps constant temperature.
Further, when 15%, 50% liquid-level switch in clear water tanks 1, dirt box 3 detect respectively liquid level less than 15%, When 50%, heating rod stops working, and prevents dry combustion method;When vehicle parking power-off, Toilet system controller detects locomotive power loss Afterwards, 1 water level of clear water tanks is detected, when 1 water level of clear water tanks is higher than 70%, opens exhaust-valve 21 and be down to 1 water level of clear water tanks 50%, it prevents water cooling from freezing ice body product and expands destruction clear water tanks 1, guarantee that clear water tanks 1 will not be damaged by frost;To the liquid level of dirt box 3 into Row detection is opened sewage valve 81 and is emptied when liquid level is higher than 90%, prevents dirt freezing icing volume from expanding and destroys dirt box 3, Guarantee that dirt box 3 will not be damaged by frost.
Obviously, above-described embodiment is only intended to clearly illustrate technical solution of the present invention example, and is not Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also It can make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention should be included in right of the present invention and want Within the protection scope asked.

Claims (10)

1. a kind of novel high and cold toilet of locomotive antifreeze emptying system, the antifreeze emptying system includes clear water tanks, just bucket, dirt Object case, washbasin and the temperature monitoring device being arranged in outside toilet, which is characterized in that the clear water tanks are connected by discharge pipe line one It being connected to and just struggles against, the dirt box is connected with discharge pipe line two, and the discharge pipe line one is connected to discharge pipe line three and is connected to washbasin, The dirt box downstream is connected to sewage pipe, is provided with heating device one on the outside of the discharge pipe line one/bis-/tri- and sewage pipe, Heating device two, water level monitoring device and temperature-detecting device are provided in the clear water tanks and dirt box;
The antifreeze emptying system further includes high-pressure air source and compressed air line, the compressed air line include air inlet, Filtering pressure reducing valve, electrically-controlled valve one, electrically-controlled valve two, electrically-controlled valve three and ventilation pipe;
The heating device two, water level monitoring device, temperature-detecting device, filtering pressure reducing valve, electrically-controlled valve one, electrically-controlled valve two, electricity It controls valve three and controls connection with system controller.
2. the novel high and cold toilet of locomotive antifreeze emptying system of one kind according to claim 1, which is characterized in that described Washbasin lower end connects overflow pipe, and the dirt box is further connected with the flue gas leading led to outside toilet;
The clear water tanks side is connected with upper hose and water supply pipe, and the water supply pipe other end is inserted into the overflow pipe, described The upstream of upper hose is disposed with filter one and water supply valve;It struggles against through discharge pipe line once being connected to the clear water tanks bottom; The discharge pipe line one includes drainpipe one, is disposed with filter two, water tank main valve, check valve, sealing on drainpipe one Valve one, water pressurizer are ultimately connected to just struggle against;
Just blowdown valve is arranged in the bucket lower end, is connected to dirt box through sewage pipe, is arranged on the sewage pipe of the dirt box connection There is sewage valve;
The water supply valve, water tank main valve, check valve, water check valve one, water pressurizer, sewage valve, which are controlled with system controller, to be connected It connects.
3. the novel high and cold toilet of locomotive antifreeze emptying system of one kind according to claim 2, which is characterized in that described Separately run between filter one and water supply valve water lines two, the discharge pipe line two includes drainpipe two and is arranged in drainpipe two On flushing valve, drainpipe two is finally connected to dirt box, and the flushing valve and system controller control connect.
4. the novel high and cold toilet of locomotive antifreeze emptying system of one kind according to claim 2, which is characterized in that described Separately run between check valve and water check valve one water lines three, the discharge pipe line three includes drainpipe three and is arranged in drainpipe three On water check valve two, three terminal of drainpipe is provided with the faucet being mounted on the washbasin, the water check valve two be Controller control of uniting connects.
5. the novel high and cold toilet of locomotive antifreeze emptying system of one kind according to claim 1 or 2, which is characterized in that The high-pressure air source is successively by the air inlet, filtering pressure reducing valve, electrically-controlled valve once the blowdown valve to the bucket lower end;Or Electrically-controlled valve two is crossed from the filtering pressure reducing valve, is passed through the water pressurizer again;Or electrically-controlled valve three is crossed from the filtering pressure reducing valve, The drainpipe one being passed through under the water tank main valve again.
6. the novel high and cold toilet of locomotive antifreeze emptying system of one kind according to claim 1 or 2, which is characterized in that Exhaust-valve is connected between the discharge pipe line one and overflow pipe, the exhaust-valve is located at water tank main valve downstream, institute Check valve upstream is stated, and controls and connects with system controller.
7. the novel high and cold toilet of locomotive antifreeze emptying system of one kind according to claim 1 to 4, feature exist In the heating device one selects heat tracing line, and the heating device two selects heating rod.
8. the novel high and cold toilet of locomotive antifreeze emptying system of one kind according to claim 1 to 4, feature exist In the water level monitoring device includes 15% liquid-level switch being arranged in clear water tanks, 70% liquid-level switch and is arranged in dirt box In 50% liquid-level switch, 90% liquid-level switch.
9. the novel high and cold toilet of locomotive antifreeze emptying system of one kind according to claim 1 to 4, feature exist In the temperature-detecting device uses temperature sensor.
10. the novel high and cold toilet of locomotive antifreeze emptying system of one kind according to claim 1, which is characterized in that institute It states toilet of locomotive ground and is embedded with floor drain pipe, the system controller is also connected with push button.
CN201910746285.6A 2019-08-13 2019-08-13 A kind of novel high and cold toilet of locomotive antifreeze emptying system Pending CN110481581A (en)

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CN201910746285.6A CN110481581A (en) 2019-08-13 2019-08-13 A kind of novel high and cold toilet of locomotive antifreeze emptying system

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Application Number Priority Date Filing Date Title
CN201910746285.6A CN110481581A (en) 2019-08-13 2019-08-13 A kind of novel high and cold toilet of locomotive antifreeze emptying system

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112208574A (en) * 2020-09-11 2021-01-12 中车株洲电力机车有限公司 Drainage anti-freezing system for vehicle and control method
CN112429018A (en) * 2020-10-22 2021-03-02 北京交通大学 Electric quantity and power optimal configuration method for electric locomotive toilet heat preservation equipment
CN113085932A (en) * 2021-05-28 2021-07-09 宁波中车时代电气设备有限公司 Vacuum excrement collecting locomotive sanitation system and flushing and emptying method
CN113428183A (en) * 2021-07-19 2021-09-24 株洲车城机车配件股份有限公司 Microorganism vacuum environment-friendly excrement collecting and treating system

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2305530A1 (en) * 2009-10-02 2011-04-06 ALSTOM Transport SA Method for protecting the fresh water system of a vehicle from freezing
CN103498494A (en) * 2013-09-26 2014-01-08 宁波南车时代传感技术有限公司 Anti-freezing sewage collection system and anti-freezing method of same
CN104386082A (en) * 2014-11-17 2015-03-04 安徽安凯汽车股份有限公司 Clean water tank system for coach toilet in cold area and control method of clean water tank system
KR20150131675A (en) * 2014-05-16 2015-11-25 한국철도공사 Water supply system of railway vehicle
CN205088076U (en) * 2015-11-02 2016-03-16 山东华腾环保科技有限公司 Device and train of external processing train bathroom sewage
CN105460036A (en) * 2016-01-06 2016-04-06 长春市朗瑞斯铁路装备有限公司 Vacuum holding type dejectas collecting system
CN105564455A (en) * 2016-01-07 2016-05-11 长春市朗瑞斯铁路装备有限公司 Compact faeces collecting system
CN109278781A (en) * 2018-11-05 2019-01-29 青岛亚通达铁路设备有限公司 A kind of water supply hygiene system, control method and vehicles for the vehicles
CN208801988U (en) * 2018-08-02 2019-04-30 青岛亚通达铁路设备有限公司 A kind of combined type water supply hygiene system
CN210941760U (en) * 2019-08-13 2020-07-07 株洲车城机车配件股份有限公司 Novel anti-freezing emptying system of locomotive toilet for high and cold

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2305530A1 (en) * 2009-10-02 2011-04-06 ALSTOM Transport SA Method for protecting the fresh water system of a vehicle from freezing
CN103498494A (en) * 2013-09-26 2014-01-08 宁波南车时代传感技术有限公司 Anti-freezing sewage collection system and anti-freezing method of same
KR20150131675A (en) * 2014-05-16 2015-11-25 한국철도공사 Water supply system of railway vehicle
CN104386082A (en) * 2014-11-17 2015-03-04 安徽安凯汽车股份有限公司 Clean water tank system for coach toilet in cold area and control method of clean water tank system
CN205088076U (en) * 2015-11-02 2016-03-16 山东华腾环保科技有限公司 Device and train of external processing train bathroom sewage
CN105460036A (en) * 2016-01-06 2016-04-06 长春市朗瑞斯铁路装备有限公司 Vacuum holding type dejectas collecting system
CN105564455A (en) * 2016-01-07 2016-05-11 长春市朗瑞斯铁路装备有限公司 Compact faeces collecting system
CN208801988U (en) * 2018-08-02 2019-04-30 青岛亚通达铁路设备有限公司 A kind of combined type water supply hygiene system
CN109278781A (en) * 2018-11-05 2019-01-29 青岛亚通达铁路设备有限公司 A kind of water supply hygiene system, control method and vehicles for the vehicles
CN210941760U (en) * 2019-08-13 2020-07-07 株洲车城机车配件股份有限公司 Novel anti-freezing emptying system of locomotive toilet for high and cold

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112208574A (en) * 2020-09-11 2021-01-12 中车株洲电力机车有限公司 Drainage anti-freezing system for vehicle and control method
CN112208574B (en) * 2020-09-11 2022-05-10 中车株洲电力机车有限公司 Drainage anti-freezing system for vehicle and control method
CN112429018A (en) * 2020-10-22 2021-03-02 北京交通大学 Electric quantity and power optimal configuration method for electric locomotive toilet heat preservation equipment
CN112429018B (en) * 2020-10-22 2021-10-29 北京交通大学 Electric quantity and power optimal configuration method for electric locomotive toilet heat preservation equipment
CN113085932A (en) * 2021-05-28 2021-07-09 宁波中车时代电气设备有限公司 Vacuum excrement collecting locomotive sanitation system and flushing and emptying method
CN113428183A (en) * 2021-07-19 2021-09-24 株洲车城机车配件股份有限公司 Microorganism vacuum environment-friendly excrement collecting and treating system

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