EP2091857A1 - Verfahren zur abgabe von heissem wasser durch ein wasserabgabegerät und wasserabgabegerät zur durchführung des verfahrens - Google Patents
Verfahren zur abgabe von heissem wasser durch ein wasserabgabegerät und wasserabgabegerät zur durchführung des verfahrensInfo
- Publication number
- EP2091857A1 EP2091857A1 EP07846983A EP07846983A EP2091857A1 EP 2091857 A1 EP2091857 A1 EP 2091857A1 EP 07846983 A EP07846983 A EP 07846983A EP 07846983 A EP07846983 A EP 07846983A EP 2091857 A1 EP2091857 A1 EP 2091857A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- dispenser
- user
- water dispenser
- temperature
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/128—Preventing overheating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/174—Supplying heated water with desired temperature or desired range of temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/184—Preventing harm to users from exposure to heated water, e.g. scalding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/223—Temperature of the water in the water storage tank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/269—Time, e.g. hour or date
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/281—Input from user
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/305—Control of valves
- F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/395—Information to users, e.g. alarms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/0073—Arrangements for preventing the occurrence or proliferation of microorganisms in the water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/14—Cleaning; Sterilising; Preventing contamination by bacteria or microorganisms, e.g. by replacing fluid in tanks or conduits
Definitions
- the invention relates to a method for dispensing hot water through a water dispenser, which is designed in particular for dispensing drinking water.
- the invention relates to a water dispenser for carrying out the method.
- Water dispensers are designed, for example, as so-called water dispensers, which can deliver drinking water and are set up, for example, in offices, public administration buildings, hotels, shopping or hospitals, etc. After a request to be made by a user, they can give off hot water.
- the water dispensers usually include a water boiler, in which a large amount of hot water held and delivered immediately after the request instruction to the user. The provision of a large amount of water at high temperature requires a high energy demand.
- Object of the present invention is to provide a method of the type mentioned, can be submitted with the hot water from the water dispenser with lower energy consumption.
- This object is achieved in a method of the generic type according to the invention that after being performed by a user first request instruction to be dispensed by the water dispenser water is heated by means of a water dispenser water heater to a predetermined target temperature, and that heated to the desired temperature water after a issued by the user second request instruction is issued by the water dispenser, if the second request instruction is made within a predetermined and starting to reach the target temperature dispensing standby time by the user.
- water to be dispensed from the water dispenser is heated to a predefinable setpoint temperature after a first request instruction to be made by the user.
- a predefinable setpoint temperature after a first request instruction to be made by the user.
- the water to be dispensed can be heated as needed, which is signaled to the water dispenser by the first request made by the user. This needs-based heating of the water makes it possible to save energy.
- the method according to the invention also provides that the water heated to the setpoint temperature is dispensed by the user after a second request instruction from the water dispenser.
- an unintentionally or carelessly made first request instruction triggers the user only the heating of the water to the target temperature, while it requires the delivery of the hot water of the second request instruction.
- This second request instruction must be made while the water dispenser is in dispensing ready mode, which begins upon reaching the set temperature and holds for the dispensing standby time. If the second request instruction does not occur, it may be provided that the water dispenser returns to a sleep mode for safety reasons, in which the user again requires two request instructions in order to obtain hot water.
- the setpoint temperature and the delivery ready time can be predetermined in an advantageous embodiment. It can be provided in particular that they are specified by a service staff. However, it can also be provided that, in particular, the setpoint temperature can be predetermined by the user before the removal of hot water.
- the signaling device may include, for example, optical and / or acoustic signaling means.
- the target temperature of the water to be dispensed during the dispensing standby time is maintained. This allows to prevent that the water to be dispensed cools during the delivery standby time. As a result, regardless of when the user makes the second request instruction during the release standby time, the user is always given water at the target temperature.
- the actual temperature of the water is detected with a temperature sensor when heating the water to be dispensed to the target temperature and / or while maintaining the desired temperature for the water to be dispensed, transmitted to a device included by the water dispenser and compared by this with the set temperature and it is when the Actual temperature exceeds or exceeds the setpoint temperature, the water heater on or off.
- a simple control loop is formed to regulate the actual temperature of the water to the target temperature.
- the second request instruction is not made by the user within the delivery standby time, it is advantageous for energy saving if the water heater is turned off after the release standby time.
- the release-ready time is 15 seconds to 120 seconds, more preferably 30 seconds to 90 seconds, for example, about 60 seconds.
- the dispensing standby time there is a balance between energy saving on the one hand and ease of use on the other hand of the water dispenser.
- the setpoint temperature of the water to be dispensed is maintained during the post-heating water. This ensures that within the reheating time, water at the setpoint temperature will be delivered to the user.
- the post-heating time is 15 seconds to 60 seconds, in particular 30 seconds to 90 seconds, for example about 60 seconds.
- This reheating time provides a balance of energy savings of the water dispenser on the one hand and ease of use of the water dispenser on the other hand.
- the water to be dispensed is heated by the water heater in a water reservoir. If the water is heated in the water reservoir, its temperature can be determined particularly reliably, so that it is ensured that the water to be dispensed has the desired temperature.
- the water storage has a capacity that corresponds to the amount of water to be dispensed by the water dispenser, so that the correct amount of water is heated.
- the invention also relates to a water dispenser.
- Object of the present invention is to provide a water dispenser, can be dispensed with the hot water with less energy consumption.
- the water dispenser comprises a water inlet and a water outlet connected to the water inlet via a flow channel water outlet and a Wasseraufloom founded with which the water is heatable in the flow channel, a valve means with which the flow connection can be prevented a temperature sensor for measuring the water temperature of the water heated by the water heater and a user operable control means via which the water heater and the valve means are controllable and which is coupled to the temperature sensor.
- the controller is user operable and can receive request instructions therefrom. For this purpose, it can be connected to an operating device, at which the user makes the request instructions.
- the water heater is turned on by the controller to heat an amount of water to be dispensed to the set temperature.
- the actual temperature of the water can be detected by the temperature sensor, transmitted to the control device and compared by this with the setpoint temperature.
- the valve device is closed. Is the Set temperature is reached, the valve device is opened by the controller according to a second request instruction by the user, and the heated water is discharged from the water dispenser. After the discharge of water, the valve device is closed by the control device.
- the water dispenser according to the invention is preferably designed for dispensing drinking water.
- the water heating device is designed as a flow heater connected in the flow channel.
- the water heater can be designed, for example, electrically operable or gas operable.
- the water dispenser has a water reservoir for the water heated by the water heater.
- heated water can be cached before delivery. It can also be provided that the water is heated directly in the water tank. This makes it possible to control the actual temperature of the water particularly well and to adjust it to the setpoint temperature.
- the water storage can be coupled to the water heater.
- the capacity of the water reservoir is 0.1 liter to 0.8 liter, preferably the capacity is 0.2 liter to 0.5 liter.
- This capacity corresponds to the average delivery amount of an embodiment of a preferred embodiment of the invention.
- water dispenser By heating the water in the water reservoir, it is ensured that a sufficient amount of hot water can be provided to a user.
- the water storage is configured as a small storage with a capacity of about 0.2 liters.
- the temperature sensor is arranged on the water heater. In this way, the temperature of the water can be measured where it is heated. As a result, a particularly reliable temperature determination is given.
- valve device is arranged at the water outlet.
- the flow channel can be closed directly at the water outlet.
- the water dispenser can have an operating device. It is favorable if the control device can be actuated by the user via the operating device. On the operating device controls are arranged, with which the user can request hot water.
- the operating device comprises an adjusting member with which the user sets the desired temperature of the water to be dispensed by the water dispenser. In this way, each user can set the desired temperature by himself.
- the water dispenser on a controllable by the control device signaling device.
- the signaling device For example, the user may be notified that the water being dispensed is at the set temperature and the water dispenser is in the dispensing ready mode.
- the user may be displayed when the water dispenser is in sleep mode and / or postheat mode.
- the signaling device may comprise optical and / or acoustic signaling means, and it is conveniently arranged on the operating device or integrated in this.
- the water dispenser 10 is designed as a so-called water dispenser, which is set up, for example, in offices, public administration buildings, hotels, shopping or hospitals etc. and is designed to dispense preferably predetermined amounts of drinking water.
- the water dispenser 10 Via a water inlet 12, the water dispenser 10 to a water supply device, preferably the public water supply network, connected.
- the water inlet 12 is connected via a flow channel 14 to a dispenser 16, which has a water outlet 18, via which the water requested by him can be delivered to a user.
- a water heater 20 is connected, which is connected via a feed section 22 with the water inlet 12.
- a delivery section 24 which is connected to a first port 26 of the dispenser 16
- the Wasseraufloomstein pain 20 is connected to the dispenser 16.
- a bypass channel 30 Connected to a second connection 28 of the delivery device 16, which is connected in flow to the first connection 26, is the end of a bypass channel 30, the beginning of which branches off the water heating device 20 from the supply section 22, so that the bypass channel 30 bypasses the supply section 22, bypassing the water heating device 20 with the delivery device 16 combines.
- a cold water channel 32 branches off from the feed section 22, the end of which branches near the dispensing device 16 into the bypass channel 30 and into which a water cooling device 34 is connected. Downstream of the water cooling device 34, a gas mixing chamber 36 is connected in the cold water channel 32, which is line-connected to a compressed gas storage bottle 38 filled with carbon dioxide (CO 2 ).
- CO 2 carbon dioxide
- the water dispenser 10 further includes a return passage 40 which branches off from the dispensing section 24 near the dispenser 16, branches near the water inlet 12 into the feed section 22 and into which a pump 42 is connected.
- the pump 42 With the pump 42, the water in the water dispenser 10 for thermal sterilization of the water dispenser 10 can be circulated in a circle.
- water is heated in the flow channel 14 to a temperature of 65 ° C by means of Wasseraufhack Stein 20, for 15 minutes through the return channel 40, the flow channel 14, the bypass channel 30 and the cold water channel 32 is promoted.
- the degermination mode can be carried out automatically at periodic intervals.
- the water dispenser automatically transitions to an operating mode in which, at the request of the user, as shown below, drinking water can be dispensed.
- the pump 42 may alternatively be connected upstream of the water heater 20 in the flow channel 14, as shown in dashed lines in Figure 1.
- the arrangement of the pump 42 immediately upstream of the Wasseraufloom coupled 20 has the advantage that the heat load of the pump can be kept relatively low.
- a filter device 44 is connected in the latter.
- a control device 46 is connected to the water heater 20 via a control line 48, via which the water heater 20 can be controlled by the control device 46.
- a further control line 50 connects the control device 46 to a valve device 52 arranged at the water outlet, so that it can be actuated by the control device 46.
- a valve device 52 By means of the valve device 52, an existing between the first port 26 of the dispenser 16 and the water outlet 18 flow connection can be selectively blocked and restored and controlled in this way the water discharge by the water dispenser 10.
- the water heater 20 is designed as a water heater 54, which includes a water reservoir 56 in which water flowing through the flow channel 14 can be heated.
- the capacity of the water reservoir 56 is approximately 0.25 liters, which corresponds to the amount of water dispensed by the water dispenser 10 per dispensing act.
- the temperature of the water in the water reservoir 56 can be detected. Via a signal line 60, the temperature sensor 58 can transmit the corresponding measured value to the control device 46.
- temperature sensor 62 is arranged, which is designed as a safety temperature sensor to detect a possible overheating of the water heater 54 in a timely manner.
- An operating device 64 is connected to the control device 46 via a control line 66.
- the operating device 64 comprises a control panel 68 with control elements arranged thereon, which comprise a hot water button 70, a normal water button 72, a cold water button 74 and a CO 2 -Taste 76.
- hot water can be discharged from the water dispenser 10 in a manner described below.
- the normal water button 72 can be discharged from the water dispenser 10 through the bypass channel 30 flowing unaufgeußtes and uncooled water.
- the Cold water button 74 is discharged from the water dispenser 10 by means of the water cooling device 34 cooled water.
- the CO 2 button 76 By additionally operating the CO 2 button 76, the cooled water in the gas mixing chamber 36 is enriched with CO 2 in the latter case.
- the water dispenser 10 further comprises a signaling device 78 in the form of an optical display 80 integrated into the operating device 64. Via the display 80, information about the status of the water dispensing device 10 can be displayed to the user.
- the water dispenser 10 is initially in idle mode in that the existing water in the flow channel 14 is not heated.
- the valve device 52 is closed.
- the user can request hot water from the water dispenser 10.
- the request for request is transmitted to the control device 46 via the control line 66, which then turns on the water heater 54 in order to heat the water in the water reservoir 56 to a predefinable setpoint temperature.
- the predetermined target temperature is usually stored in the control device 46 of the water dispenser 10 and is set when setting up the water dispenser 10 by a service staff.
- the operating device 64 of the water dispenser 10 can also be supplemented by an adjusting member, which allows each user to choose the desired temperature individually.
- the actual temperature is detected in the water tank 56 with the temperature sensor 58 and the control device 46 transmitted via the signal line 60.
- the control device 46 compares the actual temperature with the setpoint temperature and thus determines when the setpoint temperature has been reached.
- the actual temperature is displayed to the user during the heating process by means of the display 80. After reaching the target temperature to the user by means of the display 80 is displayed that this reached and the water dispenser 10 is ready to deliver the heated water.
- the water dispenser 10 Upon reaching the setpoint temperature, the water dispenser 10 switches to the dispensing standby mode for a dispensing wait time of 60 seconds, within which the user can trigger the dispensing of the hot water from the water dispenser 10 by a second actuation of the hot water button 70. If this second operation of the hot water button 70, the valve device 52 is opened, and the heated water is discharged from the water dispenser 10. Subsequently, the valve device 52 is closed.
- the water in the water storage 56 is maintained at the set temperature. This happens because the water heater 54 is turned on and off as needed by the controller 46. If the second operation of the hot water key 70 does not occur during the delivery standby time, the dispensing standby mode is terminated, the water heater 20 is turned off, and the water dispenser 10 returns to the idle mode.
- the water dispenser 10 switches to the post-heating mode for a post-heating time of 60 seconds.
- the user can trigger the dispensing of hot water from the water dispenser 10 by a single actuation of the heating water button 70.
- the temperature of the water in the water reservoir 56 is maintained at the desired temperature, so that the renewed release of hot water can take place without any appreciable time delay.
- Several post-heating periods can be continuously connected. The post-heating period starts again after each delivery of hot water from the beginning. This ensures that the water dispenser 10 can also meet a high demand for hot water in a user-friendly manner.
- the water dispenser 10 terminates the reheating mode.
- the water heater 20 is turned off and the water dispenser 10 returns to the sleep mode.
- hot water from the water dispenser 10 is heated only when needed, so that no supply of hot water must be kept in the water dispenser 10. As a result, the water dispenser 10 has a low power consumption.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Devices For Dispensing Beverages (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006062358A DE102006062358B3 (de) | 2006-12-22 | 2006-12-22 | Verfahren zur Abgabe von heißem Wasser durch ein Wasserabgabegerät und Wasserabgabegerät zur Durchführung des Verfahrens |
| PCT/EP2007/010535 WO2008080489A1 (de) | 2006-12-22 | 2007-12-05 | Verfahren zur abgabe von heissem wasser durch ein wasserabgabegerät und wasserabgabegerät zur durchführung des verfahrens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2091857A1 true EP2091857A1 (de) | 2009-08-26 |
| EP2091857B1 EP2091857B1 (de) | 2011-02-02 |
Family
ID=39016294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07846983A Active EP2091857B1 (de) | 2006-12-22 | 2007-12-05 | Verfahren zur abgabe von heissem wasser durch ein wasserabgabegerät und wasserabgabegerät zur durchführung des verfahrens |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2091857B1 (de) |
| AT (1) | ATE497478T1 (de) |
| DE (1) | DE102006062358B3 (de) |
| WO (1) | WO2008080489A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3420414A (en) * | 1967-04-24 | 1969-01-07 | Allen Electronics Inc | Hot water heater and dispenser |
| US4993593A (en) * | 1989-07-21 | 1991-02-19 | Ralph Fabiano | Apparatus and methods for dispensing a flowable medium |
| US5111969A (en) * | 1990-09-27 | 1992-05-12 | Bunn-O-Matic Corporation | Hot water dispenser with electronic control |
| DE19725952C2 (de) * | 1997-06-19 | 2001-09-13 | Bosch Gmbh Robert | Verfahren zur Brauchwasserbereitstellung in einem kombinierten System |
-
2006
- 2006-12-22 DE DE102006062358A patent/DE102006062358B3/de active Active
-
2007
- 2007-12-05 AT AT07846983T patent/ATE497478T1/de active
- 2007-12-05 WO PCT/EP2007/010535 patent/WO2008080489A1/de not_active Ceased
- 2007-12-05 EP EP07846983A patent/EP2091857B1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008080489A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008080489A1 (de) | 2008-07-10 |
| DE102006062358B3 (de) | 2008-05-29 |
| ATE497478T1 (de) | 2011-02-15 |
| EP2091857B1 (de) | 2011-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20090526 |
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