CN105962782A - Steam disinfection method for drinking water system and drinking water system adopting same - Google Patents
Steam disinfection method for drinking water system and drinking water system adopting same Download PDFInfo
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- CN105962782A CN105962782A CN201610569130.6A CN201610569130A CN105962782A CN 105962782 A CN105962782 A CN 105962782A CN 201610569130 A CN201610569130 A CN 201610569130A CN 105962782 A CN105962782 A CN 105962782A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/60—Cleaning devices
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Devices For Dispensing Beverages (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention relates to the technical field of drinking water disinfection, and discloses a steam disinfection method for a drinking water system and the drinking water system adopting the same. The drinking water system comprises a hot tank, an electric hater arranged on the hot tank, a heat exchanger, an electric controller, a water inlet valve and water outlet valves. The water inlet valve is arranged on a water inlet pipeline of the hot tank. A high-temperature water inlet of the heat exchanger is communicated with a water outlet of the hot tank, a cooled water outlet of the heat exchanger is communicated with the water outlet valves through a cooled water outlet pipe, a preheated water outlet of the heat exchanger is communicated with a water inlet of the hot tank, and a normal-temperature water inlet of the heat exchanger is communicated with a water source connector. The electric heater, the water inlet valve and the water outlet valves are all electrically connected with the electric controller, and the electric controller comprises a steam disinfection module used for controlling the drinking water system to carry out steam disinfection work. According to the steam disinfection method for the drinking water system and the drinking water system adopting the same, steam is used for disinfection, the water and energy saving effect is better than that of high-temperature water disinfection, and the possible problem that a large amount of hot water overflows out of a water collector of the drinking water system and flows around the drinking water system, and consequently environmental harm is caused can be avoided.
Description
Technical field
The present invention relates to disinfection of drinking water technical field, particularly relate to a kind of drinking-water system method of steam-sterilizing and
Realize the drinking-water system of the method.
Background technology
At present, water dispenser has been to use the most universal product, and the basic function of water dispenser is a point water, will
Drinking water distribution is flowed out, and facilitates user to take, and additional function is that drinking water carries out homoiothermic, such as refrigeration,
Heat-production functions, also has the product being also integrated in by purification function.Such as, the drink of some schools now
Horizontal stand, actually band purification function and the water dispenser of heating function.This water dispenser is owing to being special
Students for school uses and designs, it is contemplated that can meet the requirement of many people water intaking simultaneously, be typically equipped with
Several depotition cocks.Such as, a machine being equipped with 4 depotition cocks, heating power is the biggest.Again
In view of preventing children's hot water from scalding, again water is carried out high-temperature heating sterilization, it is also contemplated that boiled water
It is difficult to cooling for the moment, and the break time is comparatively short, and the requirement of energy-conservation aspect, etc., this kind of
It is right with the room temperature water inlet filled into when hot water flows out that water dispenser is generally of in water first heats and is stored in hot tank
The high-temperature water outlet flowed out cools down, and then provides this function of drinking water of about 40 DEG C to student, specifically
Structure includes hot tank and heat exchanger, is provided with electric heater inside hot tank, and its housing is provided with water inlet and water outlet
Mouthful, it being not provided with electric heater inside heat exchanger, be served only for heat exchange, the water i.e. flowing into hot tank is wanted first from changing
Hot device flows into hot tank again after absorbing heat preheating, and heat released by the hot water heat exchanger to be first passed through flowing out hot tank
Depotition cock is flowed to again after cooling.So benefit of design is, the most energy-conservation, water inlet can be carried out high temperature again and disappear
Poison, during because drinking, temperature is the highest, consequently facilitating student drinks at any time.
But, flowing out the hot water of hot tank after heat released by heat exchanger, its temperature is often reduced to about 35 DEG C,
Then flowing into depotition cock, water temperature may be further reduced to about 30 DEG C, and such temperature is vegetative
Optimum temperature；On the other hand, depotition cock leads directly to air, and outlet is again often in wetting state, air
In antibacterial be readily accessible the faucet of humidity, and stop there, breed, so, user uses
After a period of time, then detecting the water flowed out from depotition cock, its total number of bacteria index is substantially all defective,
Especially in summer, total number of bacteria may exceed a lot of times of drinking water standard limit value.This is that antibacterial is going out
The result of long-time breeding in water lines, for prior art, it is believed that occur that this result is
Inevitable.
The Chinese patent of Publication No. CN105147099A, discloses the high temperature disinfecting methods of a kind of drinking-water system
And drinking-water system, although can solve the problem that the problems referred to above, but, it is to utilize high-temperature water to carry out disinfection, so
Not only waste great lot of water resources and the energy, and a large amount of hot water being likely to occur overflow from drinking-water system water accumulating disc,
Flow to drinking-water system surrounding environment is worked the mischief.
In view of drawbacks described above, creator of the present invention, through research for a long time and test, is finally obtained this
Bright.
Summary of the invention
It is an object of the invention to provide the method for steam-sterilizing of a kind of drinking-water system and realize the drinking-water of the method
System is in order to overcome above-mentioned technological deficiency.
For achieving the above object, the technical solution used in the present invention is:
On the one hand a kind of drinking-water system is provided, it include hot tank, the electric heater being arranged on described hot tank,
Heat exchanger, electric controller, water intaking valve and outlet valve；Described water intaking valve is arranged on the inlet pipeline of described hot tank；
The high-temperature water import of described heat exchanger connects with the outlet of described hot tank, and temperature lowering water is passed through in the outlet of its temperature lowering water
Outlet pipe connects with described outlet valve, and the outlet of its preheating water connects with the water inlet of described hot tank, its normal-temperature water
Import connects with water source interface；Described electric heater, water intaking valve and outlet valve all electrically connect with described electric controller,
Described electric controller includes that vapor sterilization module, described vapor sterilization module are used for controlling described drinking-water system and carry out
Vapor sterilization works.
It is also preferred that the left described electric controller also includes properly functioning module and clock module, described properly functioning module
Properly functioning for controlling described drinking-water system, described clock module is for arranging the normal of described drinking-water system
Run time period, stand-by time section and vapor sterilization time period, when described drinking-water system is in vapor sterilization
Between section time, described vapor sterilization module start, control described drinking-water system and carry out vapor sterilization work.
It is also preferred that the left this drinking-water system also includes that vapor sterilization controls switch, described vapor sterilization controls switch and uses
Start in controlling described vapor sterilization module.
It is provided with outlet pipe temperature probe on described temperature lowering water outlet pipe.
It is also preferred that the left this drinking-water system is in hot tank and/or hot tank outlet pipe and/or temperature lowering water outlet pipe and/or heat exchange
The outer surface of device sets up heat-insulation layer.
Another aspect provides a kind of method of steam-sterilizing utilizing above-mentioned drinking-water system to realize, this vapor sterilization side
Method comprises the following steps:
Step S10, starts described vapor sterilization module；
Step S11, closes described water intaking valve, opens described outlet valve；
Step S12, described electric heater is energized, heats water in described hot tank；
Step S13, until in described hot tank water boiling after, continue heating, allow boiling time produce a large amount of water vapour
Or steam water interface flows to the emptying of described outlet valve through the outlet pipeline of described hot tank.
It is also preferred that the left also include after described step S13:
Step S14, treats that high-temperature steam or steam water interface were no less than from the persistent period that described outlet valve flows out and sets
After fixed disinfecting time, open described water intaking valve, the most described electric heater power-off, make heat exchanger recover to change
Hot merit energy.
It is also preferred that the left also include after described step S14:
Step S15, until heat exchanger normal-temperature water water inlet the persistent period no less than set flooding time after, described in go out
Water valve flows out the temperature lowering water of design temperature by outflow high-temperature steam or high temperature steam water interface by being gradually become, and closes
Close described water intaking valve, simultaneously close off described outlet valve.
Another aspect provides a kind of method of steam-sterilizing utilizing above-mentioned drinking-water system to realize, this vapor sterilization side
Method comprises the following steps:
Step S20, starts described vapor sterilization module；
Step S21, closes described water intaking valve, opens described outlet valve；
Step S22, described electric heater is energized, heats water in described hot tank；
Step S23, until in described hot tank water boiling after, continue heating, allow boiling time produce a large amount of water vapour
Or steam water interface flows to the emptying of described outlet valve through the outlet pipeline of described hot tank.
It is also preferred that the left also include after described step S23:
Step S24, treats that the temperature that described outlet pipe temperature probe detects in described temperature lowering water outlet pipe is not less than
After persistent period after sterilisation temp is no less than the disinfecting time set, open described water intaking valve, the most described
Electric heater power-off, makes heat exchanger recover heat exchange function.
It is also preferred that the left also include after described step S24:
Step S25, until heat exchanger normal-temperature water water inlet the persistent period no less than set flooding time after, described in go out
Water valve flows out the temperature lowering water of design temperature by outflow high-temperature steam or high temperature steam water interface by being gradually become, and closes
Close described water intaking valve, simultaneously close off described outlet valve.
The beneficial effects of the present invention is compared with the prior art: the steam of the drinking-water system that the present invention provides disappears
Poison method and drinking-water system have the advantage that
1. by fixed to outlet pipeline and the flowing water Valve of drinking-water system with high-temperature steam or high temperature steam water interface
Phase sterilizes, it is possible to ensure that the total number of bacteria sanitary index of drinking-water system water outlet is qualified, improves drinking water hygiene peace
Quan Xing.
2. with use high-temperature-hot-water Comparison of disinfectant method, high-temperature steam sterilization method economizes on water, energy-conservation, moreover it is possible to avoiding can
The a large amount of hot water that can occur overflow from drinking-water system water accumulating disc, flow to drinking-water system surrounding and work the mischief environment.
3. high-temperature steam sterilization method is safe and reliable, does not has any side effect.
Accompanying drawing explanation
Fig. 1 is a kind of drinking-water system structural representation being capable of method of steam-sterilizing of the embodiment of the present invention one
Figure；
Fig. 2 is a kind of drinking-water system structural representation being capable of method of steam-sterilizing of the embodiment of the present invention two
Figure；
Fig. 3 is the method for steam-sterilizing flow chart of a kind of drinking-water system of the embodiment of the present invention three；
Fig. 4 is a kind of drinking-water system structural representation being capable of method of steam-sterilizing of the embodiment of the present invention four
Figure；
Fig. 5 is a kind of drinking-water system structural representation being capable of method of steam-sterilizing of the embodiment of the present invention five
Figure；
Fig. 6 is the method for steam-sterilizing flow chart of a kind of drinking-water system of the embodiment of the present invention six.
Detailed description of the invention
For ease of being further appreciated by the technology contents of the present invention, below in conjunction with the accompanying drawings the present invention is made furtherly
Bright.
Embodiment one
As it is shown in figure 1, a kind of drinking-water system being capable of method of steam-sterilizing provided for the present invention, should
Drinking-water system include electric heater 1, hot tank temperature probe 2, overheat protector 3, hot tank 4, drain 5,
Relief valve 6, hot tank outlet pipe 7, hot tank water inlet pipe 8, heat exchanger 9, temperature lowering water outlet pipe 11, outlet valve
12, water intaking valve 14, check valve 15, water purifier 16, water source interface 17, normal-temperature water water inlet pipe 20 and automatically controlled
Device.
It is provided with hot tank outlet and hot tank water inlet on hot tank 4, electric heater 1, certainly electricity are set inside it
Heater 1 can also arrange the outside of hot tank 4.Hot tank temperature probe 2 and overheat protector 3 are all located at heat
On tank 4.The inside of the hot tank of relief valve 6 inlet communication 4, outlet is connected with drain 5 by pipeline, can
To offset water or the thermal expansion of gas in tank in hot tank 4 heating process, prevent the overvoltage of hot tank 4.
High-temperature water import, temperature lowering water outlet, normal-temperature water import and preheating water outlet it is provided with on heat exchanger 9,
Heat exchanger 9 is double pipe heat exchanger, and it includes inner tube 19 and outer tube 13, wherein, high-temperature water import and cooling
Water out is arranged in inner tube 19, and normal-temperature water import and preheating water outlet are arranged on outer tube 13.High-temperature water
Import connect with hot tank outlet by hot tank outlet pipe 7, temperature lowering water export by temperature lowering water outlet pipe 11 and
Outlet valve 12 inlet communication, normal-temperature water import is connected with water source interface 17, in advance by normal-temperature water water inlet pipe 20
Hot water outlet is connected with hot tank water inlet by hot tank water inlet pipe 8.Water intaking valve 14, check valve 15 and water purifier
16 are arranged on normal-temperature water water inlet pipe 20, wherein, and the import of check valve 15 and the outlet of water purifier.
Harmful and noxious substance in water source can be cleaned out by water purifier 16.
Electric controller electrically connects with electric heater 1, temperature probe 2, outlet valve 12 and water intaking valve 14 respectively.Electricity
Control device includes: vapor sterilization module, properly functioning module and clock module, described vapor sterilization module is used for
Controlling described drinking-water system and carry out vapor sterilization work, described properly functioning module is used for controlling described drinking-water system
Unite properly functioning, described clock module for arrange the uptime section of described drinking-water system, standby time
Between section and vapor sterilization time period, when described drinking-water system is in the vapor sterilization time period, described steam disappears
Poison module starts, and controls described drinking-water system and carries out vapor sterilization work.Such as, by uptime section
It is arranged on 6:00～21:00 of Monday～Saturday；The vapor sterilization time period be arranged on every night 11 it
A period of time was chosen afterwards, such as between morning 2:00～4:00 before second day 5 o'clock；Remaining time
Between section be stand-by time section.When described drinking-water system is in the vapor sterilization time period, described vapor sterilization mould
Block starts, and controls described drinking-water system and carries out vapor sterilization work.In sterilization intermittent fever tank, temperature controls be more than
Boiling point～boiling point+5K.
It addition, the drinking-water system of the present embodiment can also include that vapor sterilization controls switch, this vapor sterilization control
Switch processed is used for controlling vapor sterilization module and starts.When making drinking-water system miss vapor sterilization due to safety at power cut
Time period does not carries out vapor sterilization work, or wants in uptime section or stand-by time Duan Xiang drink
Water system carries out vapor sterilization work, only need to operate vapor sterilization and control switch, can start vapor sterilization mould
Block, makes drinking-water system carry out vapor sterilization work.Improve the motility of drinking-water system vapor sterilization.
When this drinking-water system is in normal operating condition: the inner filling water of hot tank 4, the electricity in hot tank 4 adds
Hot device 1 is in, according to the temperature control requirement of water in hot tank 4, the state that is automatically heated or not heated, and makes hot tank 4
Interior temperature controls at boiling point-15K～boiling point, and outlet valve 12 is closed.When user fetches water, water inlet
Valve 14 and outlet valve 12 are in opening, and the high-temperature-hot-water in hot tank 4 flows out from hot tank outlet, stream
Through hot tank outlet pipe 7, then flow successively through the high-temperature water import on heat exchanger 9, the inner tube within heat exchanger 9
19, the outlet of the temperature lowering water on heat exchanger 9, temperature lowering water outlet pipe 11, finally flow out from outlet valve 12.High temperature
Water in inner tube 19 in flow process its heat by outer tube 13 normal-temperature water absorb so that its temperature very
Fast decline, therefore flow out from outlet valve 12 is the relatively low drinking water of temperature.Meanwhile, source water can flow to
Normal-temperature water import on heat exchanger 9, to outer tube 13 moisturizing of heat exchanger 9, absorbs thermal temperature from inner tube 19
Export from the preheating water of heat exchanger 9 again after rising and flow out, then in hot tank water inlet pipe 8 flows into hot tank 4,
Thermotropism tank 4 fills into and the preheating water of the high temperature water yield equivalent flowed out from hot tank 4.
When this drinking-water system is carried out vapor sterilization: start vapor sterilization module, close water intaking valve 14, open
Opening outlet valve 12, electric heater 1 works, and heats water in hot tank 4, after water boiling in hot tank 4,
Continue heating, allow a large amount of water vapour or the steam water interface that produce when seething with excitement flow out through hot tank outlet pipe 7, then
Through the high-temperature water import inflow heat exchanger 9 of heat exchanger 9, through inner tube 19, then from the temperature lowering water of heat exchanger
Outlet is flowed out, and flows to outlet valve 12 through temperature lowering water outlet pipe 11 and is vented.These water vapour or steam water interface
Can effectively kill the antibacterial in outlet pipeline.
When high-temperature steam or steam water interface are no less than, from the persistent period that outlet valve 12 flows out, the sterilization set
After between, open water intaking valve 14, simultaneously electric heater 1 power-off, close hot tank heating function, allow inflow heat exchange
High-temperature water in outer tube 13 is pressed into hot tank 4 through hot tank water inlet pipe 8 by the normal-temperature water of device 9, simultaneously in inner tube 19
High-temperature steam or the normal-temperature water that flowed into of high temperature steam water interface cool down, make heat exchanger 9 recover heat exchange function.
Until the heat exchanger 9 normal-temperature water water inlet persistent period no less than the flooding time set after, outlet valve 12 will be by
Flow out high-temperature steam or high temperature steam water interface gradually becomes the temperature lowering water flowing out design temperature, close water intaking valve
14, simultaneously close off outlet valve 12.So far, the disinfection of drinking-water system terminates.
Disinfecting process run in, the coolant-temperature gage in hot tank reach boiling time, a large amount of steam can be produced, steam because of
Density is little can flow upwardly toward the gathering of hot tank top by nature, and water also can significantly expand simultaneously, the hottest pressure inside the tank
Notable rising, promotes the steam water interface of hot tank top to flow to heat exchanger, the water in passage of being lowered the temperature by heat exchanger
Top is to outlet valve, and so, first flow out from outlet valve is the normal-temperature water of about 35 DEG C, the most little by little heat up,
Gradually become high temperature steam water interface；Along with the carrying out of process, the evaporation of water amount in hot tank and discharge
More and more, the water level in hot tank can be more and more lower, hot tank inner top can gradually form a gas-liquid mixed (with
Gas is main) space, and the volume in this space can be increasing, and namely water level is more and more lower, then,
Steam-water separation effect in this space can be become better and better, and this space will gradually become the space of pure gas phase, this
It is exactly pure steam that Shi Congre tank flows to the fluid of heat exchanger.Outlet valve flows out to last from beginning to flow out normal-temperature water
Pure steam needs a process gradually developed.
Those skilled in the art know, 1kg water from the heat required for the water of 0 degrees Centigrade to 100 degree Celsius is
420 kilojoule energy, its volume greatly to being 1L (consider thermal expansion then can be more than 1L), i.e. often 1L high-temperature sterilization
The energy that water needs is 420 kilojoules.
Known specific heat of water is 4.20kJ/ (K.kg), and the gasification latent heat of the water of 100 DEG C is 2260kJ/kg, 100 DEG C
Density under steam normal pressure is 0.6kg/1000L, can make following calculating accordingly.
1kg water is 2680kJ from the heat required for the steam of 0 degrees Centigrade to 100 degree Celsius
420+2260=2680 kilojoule
Volume under 1Kg100 DEG C of steam normal pressure is:
The heat that 1L high-temperature sterilization steam needs is:
Energy required for 1L high-temperature sterilization steam is the energy of 1L high-temperature sterilization hot water
Additionally, the water yield required for 1L high-temperature sterilization steam is the water yield of 1L high-temperature sterilization hot water
It is known that the consumption of disinfectant solution is closely related with the volume of disinfectant solution in disinfecting process, so,
Above-mentioned calculating absolutely proved with high-temperature steam sterilization relative to high-temperature-hot-water sterilization in terms of energy-conservation, water saving
Superiority.
Embodiment two
As in figure 2 it is shown, another drinking-water system being capable of method of steam-sterilizing for present invention offer is tied
Structure schematic diagram, this drinking-water system is with the drinking-water system difference of embodiment one, in hot tank 4 and/or heat
The outer surface of tank outlet pipe 7 and/or temperature lowering water outlet pipe 11 and/or heat exchanger 9 sets up heat-insulation layer 10.So
It is possible to prevent in hot tank 4 that steam or gas-vapor mix are in the flow process flowing to outlet valve 12, due to pipeline
Absorption heat and distribute heat to surrounding, cause the temperature of steam or gas-vapor mix to be gradually lowered,
Disinfection Effect may be affected after arriving outlet valve 12.By setting up heat-insulation layer, it is possible to prevent steam or water
The temperature of vapour mixture declines, and improves Disinfection Effect.
Embodiment three
As it is shown on figure 3, a kind of drinking-water system utilized in above-described embodiment one and two for present invention offer is real
Existing method of steam-sterilizing flow chart, the method comprises the following steps:
Step S10, starts vapor sterilization module.
Step S11, closes water intaking valve 14, opens outlet valve 12.
Step S12, electric heater 1 is energized, and heats water in hot tank 4.
Step S13, until in hot tank 4 water boiling after, continue heating, allow boiling time produce a large amount of water vapour or
Steam water interface flows out through hot tank outlet pipe 7, then the high-temperature water import inflow heat exchanger 9 through heat exchanger 9, so
After export from the temperature lowering water of heat exchanger and to flow out, flow to outlet valve 12 through temperature lowering water outlet pipe 11 and be vented.
Step S14, treats that high-temperature steam or steam water interface were no less than from the persistent period that outlet valve 12 flows out and sets
After fixed disinfecting time, open water intaking valve 14, simultaneously electric heater 1 power-off, close hot tank heating function,
High-temperature water in outer tube 13 is pressed into hot tank 4 through hot tank water inlet pipe 8 by the normal-temperature water allowing inflow heat exchanger 9, with
Time inner tube 19 in high-temperature steam or the normal-temperature water that flowed into of high temperature steam water interface cool down, make heat exchanger 9 extensive
Multiple heat exchange function.
Step S15, after the heat exchanger 9 normal-temperature water water inlet persistent period flooding time no less than setting, water outlet
Valve 12 flows out the temperature lowering water of design temperature by outflow high-temperature steam or high temperature steam water interface by being gradually become, and closes
Close water intaking valve 14, simultaneously close off outlet valve 12.
Embodiment four
As shown in Figure 4, another drinking-water system being capable of method of steam-sterilizing provided for the present invention is tied
Structure schematic diagram, this drinking-water system is with the drinking-water system difference of embodiment one, at temperature lowering water outlet pipe
11 are provided with outlet pipe temperature probe 18.
When this drinking-water system is carried out vapor sterilization: start vapor sterilization module, close water intaking valve 14, open
Opening outlet valve 12, electric heater 4 works, and heats water in hot tank 4, after water boiling in hot tank 4,
Continue heating, allow a large amount of water vapour or the steam water interface that produce when seething with excitement flow out through hot tank outlet pipe 7, then
Through the high-temperature water import inflow heat exchanger 9 of heat exchanger 9, through inner tube 19, then from the temperature lowering water of heat exchanger
Outlet is flowed out, and flows to outlet valve 12 through temperature lowering water outlet pipe 11 and is vented.These water vapour or steam water interface
Can effectively kill the antibacterial in outlet pipeline.
Temperature in outlet pipe temperature probe 18 detects temperature lowering water outlet pipe 11 is not less than after sterilisation temp
Persistent period no less than set disinfecting time after, open water intaking valve 14, simultaneously electric heater 1 power-off,
Close hot tank heating function, allow the normal-temperature water of inflow heat exchanger 9 be intake through hot tank by the high-temperature water in outer tube 13
Pipe 8 is pressed into hot tank 4, the normal-temperature water that the high-temperature steam in inner tube 19 or high temperature steam water interface are flowed into simultaneously
Cooling, makes heat exchanger 9 recover heat exchange function.Sterilisation temp is in the range of 93 DEG C～99 DEG C.
Until the heat exchanger 9 normal-temperature water water inlet persistent period no less than the flooding time set after, outlet valve 12 will be by
Flow out high-temperature steam or high temperature steam water interface gradually becomes the temperature lowering water flowing out design temperature, close water intaking valve
14, simultaneously close off outlet valve 12.So far, the vapor sterilization end-of-job of drinking-water system.
Embodiment five
As it is shown in figure 5, another drinking-water system being capable of method of steam-sterilizing for present invention offer is tied
Structure schematic diagram, this drinking-water system is with the drinking-water system difference of embodiment four, in hot tank 4 and/or heat
The outer surface of tank outlet pipe 7 and/or temperature lowering water outlet pipe 11 and/or heat exchanger 9 sets up heat-insulation layer 10.So
It is possible to prevent in hot tank 4 that steam or gas-vapor mix are in the flow process flowing to outlet valve 12, due to pipeline
Absorption heat and distribute heat to surrounding, cause the temperature of steam or gas-vapor mix to be gradually lowered,
Disinfection Effect may be affected after arriving outlet valve 12.By setting up heat-insulation layer, it is possible to prevent steam or water
The temperature of vapour mixture declines, and improves Disinfection Effect.
Embodiment six
As shown in Figure 6, a kind of drinking-water system utilized in above-described embodiment four and five provided for the present invention is real
Existing method of steam-sterilizing flow chart, the method comprises the following steps:
Step S20, starts vapor sterilization module.
Step S21, closes water intaking valve 14, opens outlet valve 12.
Step S22, electric heater 1 is energized, and heats water in hot tank 4.
Step S23, until in hot tank 4 water boiling after, continue heating, allow boiling time produce a large amount of water vapour or
Steam water interface flows out through hot tank outlet pipe 7, then the high-temperature water import inflow heat exchanger 9 through heat exchanger 9, so
After export from the temperature lowering water of heat exchanger and to flow out, flow to outlet valve 12 through temperature lowering water outlet pipe 11 and be vented.
Step S24, treats that the temperature that outlet pipe temperature probe 18 detects in temperature lowering water outlet pipe 11 is not less than and disappears
After persistent period after poison temperature is no less than the disinfecting time set, open water intaking valve 14, simultaneously electric heater
1 power-off, closes hot tank heating function, allows the normal-temperature water of inflow heat exchanger 9 by the high-temperature water warp in outer tube 13
Hot tank water inlet pipe 8 is pressed into hot tank 4, and the high-temperature steam in inner tube 19 or high temperature steam water interface are flowed into simultaneously
Normal-temperature water cooling, make heat exchanger 9 recover heat exchange function.
Step S25, after the heat exchanger 9 normal-temperature water water inlet persistent period flooding time no less than setting, water outlet
Valve 12 flows out the temperature lowering water of design temperature by outflow high-temperature steam or high temperature steam water interface by being gradually become, and closes
Close water intaking valve 14, simultaneously close off outlet valve 12.
Method of steam-sterilizing and the drinking-water system of the drinking-water system that the present invention provides have the advantage that
1. by fixed to outlet pipeline and the flowing water Valve of drinking-water system with high-temperature steam or high temperature steam water interface
Phase sterilizes, it is possible to ensure that the total number of bacteria sanitary index of drinking-water system water outlet is qualified, improves drinking water hygiene peace
Quan Xing.
2. with use high-temperature-hot-water Comparison of disinfectant method, high-temperature steam sterilization method economizes on water, energy-conservation, moreover it is possible to avoiding can
The a large amount of hot water that can occur overflow from drinking-water system water accumulating disc, flow to drinking-water system surrounding and work the mischief environment.
3. high-temperature steam sterilization method is safe and reliable, does not has any side effect.
The foregoing is only presently preferred embodiments of the present invention, be merely illustrative for the purpose of the present invention, rather than
Restrictive.Those skilled in the art understands, can in the spirit and scope that the claims in the present invention are limited
It is carried out many changes, amendment, even equivalence, but falls within protection scope of the present invention.
Claims (10)
1. a drinking-water system, it include hot tank, the electric heater being arranged on described hot tank,
Heat exchanger, electric controller, water intaking valve and outlet valve；
Described water intaking valve is arranged on the inlet pipeline of described hot tank；
The high-temperature water import of described heat exchanger connects with the outlet of described hot tank, and its temperature lowering water goes out
Mouth is connected with described outlet valve by temperature lowering water outlet pipe, the outlet of its preheating water and described hot tank
Water inlet connects, and its normal-temperature water import connects with water source interface；
Described electric heater, water intaking valve and outlet valve all electrically connect with described electric controller, its feature
Being, described electric controller includes that vapor sterilization module, described vapor sterilization module are used for controlling institute
State drinking-water system and carry out vapor sterilization work.
Drinking-water system the most according to claim 1, it is characterised in that described electric controller
Also include that properly functioning module and clock module, described properly functioning module are used for controlling described drink
Water system is properly functioning, when described clock module is for arranging described drinking-water system properly functioning
Between section, stand-by time section and vapor sterilization time period, when described drinking-water system is in vapor sterilization
During the time period, described vapor sterilization module starts, and controls described drinking-water system and carries out vapor sterilization
Work.
Drinking-water system the most according to claim 1, it is characterised in that this drinking-water system
Also including that vapor sterilization controls switch, described vapor sterilization controls switch and is used for controlling described steam
Sterilization module starts.
4. according to the drinking-water system described in Claims 2 or 3, it is characterised in that described fall
Outlet pipe temperature probe it is provided with on water outlet pipe.
5. the steam realized by described drinking-water system arbitrary in claim 1-3 is disappeared
Poison method, it is characterised in that this method of steam-sterilizing comprises the following steps:
Step S10, starts described vapor sterilization module；
Step S11, closes described water intaking valve, opens described outlet valve；
Step S12, described electric heater is energized, heats water in described hot tank；
Step S13, until in described hot tank water boiling after, continue heating, allow boiling time produce
A large amount of water vapour or steam water interface flow to described outlet valve through the outlet pipeline of described hot tank and put
Empty.
Method of steam-sterilizing the most according to claim 5, it is characterised in that described step
Also include after rapid S13:
Step S14, until high-temperature steam or steam water interface from described outlet valve flow out lasting time
Between no less than set disinfecting time after, open described water intaking valve, the most described electric heater break
Electricity, makes heat exchanger recover heat exchange function.
Method of steam-sterilizing the most according to claim 6, it is characterised in that described step
Also include after rapid S14:
Step S15, treats that the heat exchanger normal-temperature water water inlet persistent period is no less than the flooding time set
After, described outlet valve will be gradually become outflow set by outflow high-temperature steam or high temperature steam water interface
The temperature lowering water of fixed temperature, closes described water intaking valve, simultaneously closes off described outlet valve.
8. the method for steam-sterilizing that drinking-water system according to claim 4 realizes, its
Being characterised by, this method of steam-sterilizing comprises the following steps:
Step S20, starts described vapor sterilization module；
Step S21, closes described water intaking valve, opens described outlet valve；
Step S22, described electric heater is energized, heats water in described hot tank；
Step S23, until in described hot tank water boiling after, continue heating, allow boiling time produce
A large amount of water vapour or steam water interface flow to described outlet valve through the outlet pipeline of described hot tank and put
Empty.
Method of steam-sterilizing the most according to claim 8, it is characterised in that described step
Also include after S23:
Step S24, treats that described outlet pipe temperature probe detects in described temperature lowering water outlet pipe
After temperature is no less than, not less than the persistent period after sterilisation temp, the disinfecting time set, open institute
State water intaking valve, the most described electric heater power-off, make heat exchanger recover heat exchange function.
Method of steam-sterilizing the most according to claim 9, it is characterised in that described step
Also include after rapid S24:
Step S25, when the heat exchanger normal-temperature water water inlet persistent period is no less than the water inlet set
After between, described outlet valve will be gradually become outflow by outflow high-temperature steam or high temperature steam water interface
The temperature lowering water of design temperature, closes described water intaking valve, simultaneously closes off described outlet valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569130.6A CN105962782A (en) | 2016-07-19 | 2016-07-19 | Steam disinfection method for drinking water system and drinking water system adopting same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610569130.6A CN105962782A (en) | 2016-07-19 | 2016-07-19 | Steam disinfection method for drinking water system and drinking water system adopting same |
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| CN201610569130.6A Pending CN105962782A (en) | 2016-07-19 | 2016-07-19 | Steam disinfection method for drinking water system and drinking water system adopting same |
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| CN110613345A (en) * | 2018-06-20 | 2019-12-27 | 艾欧史密斯（中国）环境电器有限公司 | Water dispenser and control method thereof |
| CN112021943A (en) * | 2020-09-18 | 2020-12-04 | 青岛吉之美商用设备有限公司 | Stepping type countercurrent heat exchange device and warm-boiling water drinking equipment thereof |
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