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WO2015169943A2 - Appareil de nettoyage à la vapeur - Google Patents

Appareil de nettoyage à la vapeur Download PDF

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Publication number
WO2015169943A2
WO2015169943A2 PCT/EP2015/060164 EP2015060164W WO2015169943A2 WO 2015169943 A2 WO2015169943 A2 WO 2015169943A2 EP 2015060164 W EP2015060164 W EP 2015060164W WO 2015169943 A2 WO2015169943 A2 WO 2015169943A2
Authority
WO
WIPO (PCT)
Prior art keywords
steam
line
steam cleaning
pressure
appliance according
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.)
Ceased
Application number
PCT/EP2015/060164
Other languages
German (de)
English (en)
Other versions
WO2015169943A3 (fr
Inventor
Michael SCHÖNEWALD
Jochen Engele
Daniel Deutscher
Dimitri GÄRTNER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Priority to EP15719759.1A priority Critical patent/EP3140575A2/fr
Priority to CN201580023778.7A priority patent/CN106457319A/zh
Publication of WO2015169943A2 publication Critical patent/WO2015169943A2/fr
Publication of WO2015169943A3 publication Critical patent/WO2015169943A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20—Excess-flow valves
    • F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
    • F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
    • F16K17/26—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in either direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/06—Devices, e.g. valves, for venting or aerating enclosures for aerating only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0282—Safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00—Other cleaning aspects applicable to all B08B range
    • B08B2230/01—Cleaning with steam

Definitions

  • the invention relates to a steam cleaning device with an electrically heatable water heater, at its inlet via a supply line connected to a water tank pump is connected and at its outlet via a steam line, a steam delivery member is connected, the pump depending on the pressure prevailing in the steam line pressure controllable is.
  • Steam cleaning devices are used, for example, for cleaning fittings and surfaces, in particular for cleaning hard surfaces. They include a steam generator for evaporating water. The generated water vapor can then be directed to a surface to be cleaned, for example.
  • a steam cleaning device in which an electrically heatable steam boiler is used to generate steam.
  • the steam boiler can be filled with water and to the outlet of the boiler, a steam line, such as a steam hose, be connected, which carries at its free end a steam delivery member, such as a steam gun.
  • a steam line such as a steam hose
  • a steam delivery member such as a steam gun.
  • a steam cleaning device in which the steam is generated by means of an electrically heatable water heater.
  • Water to be evaporated is provided to the water heater by a pump via a supply line.
  • the pump is Input side connected to a water tank.
  • a steam line is connected, through which the water heater is in flow communication with a steam delivery member.
  • the pressure prevailing in the steam line pressure can be detected by means of a pressure sensor.
  • the sensor signal is used to control the pump. This provides the ability to turn the pump on and off when the pressure in the steam line reaches predetermined thresholds.
  • the control of the delivery of steam through the steam delivery device is carried out in the known from WO 2004/005605 AI steam cleaning device with the help of a arranged at the outlet of the water heater solenoid valve, which is connected via an electrical control line with an arranged in the steam delivery member electrical switch operated by the user can be. If the solenoid valve is closed, the flow connection between the water heater and the steam delivery member is interrupted, however, the vapor, which is located downstream of the solenoid valve in the steam line, can escape later. When the solenoid valve is re-opened, first the steam line is filled with steam, that is, the pressure gradually rises in the steam line, and the steam reaches the steam delivery device with a delay after opening the solenoid valve and can then be directed to an object to be cleaned ,
  • Object of the present invention is to provide a steam cleaning device of the type mentioned in such a way that it is cheaper to produce and the delivery of steam through the steam delivery device can be better controlled by the user.
  • a steam cleaning device of the generic type in that the steam delivery member has a manually operable steam delivery valve and the steam line forms a steam receiving chamber extending to the steam delivery valve for receiving steam when the steam delivery valve is closed.
  • the user can control the discharge of steam by means of a steam discharge valve integrated in the steam delivery member. It is a manually operable valve that can be transferred by the user from a closed position to an open position. In the closed position, the steam delivery valve is closed, so that no steam can escape from the steam line, and in the open position, the steam discharge valve is open, so that steam can be discharged via the steam discharge valve. In the area between the water heater and the steam delivery device no further shut-off valve is connected in the steam line. Rather, the steam line forms a steam holding space, which can be filled after switching off the steam cleaning device with subsequently generated by the water heater steam. This has the advantage that the subsequently generated steam does not lead to a very high pressure increase in the water heater, so that it is not exposed to very high mechanical loads. The steam cleaning device according to the invention can therefore be produced more cheaply.
  • the control of the pump is dependent on the pressure prevailing downstream of the water heater in the steam line. This has the advantage that regularly recurring pressure fluctuations, which can be caused by the pump, can be attenuated by the water heater and therefore affect the control of the pump less. Except- this is downstream of the water heater usually only a vapor phase, so that the pressure of the steam can be reliably used to control the pump.
  • the control of the steam discharge by means of the steam delivery valve which is arranged in the steam delivery member.
  • This has the advantage that the user immediately steam from the steam line is available when you open the steam delivery valve.
  • the result of the opening of the steam delivery valve is that sudden steam can be directed under operating pressure from the steam delivery member to an object to be cleaned. If the user disengages the steam delivery valve, the delivery of steam is interrupted immediately, without the possibility of subsequently leaving steam from the steam delivery device.
  • the steam cleaning device according to the invention is thus characterized by an improved control of the steam delivery.
  • the steam line is preferably elastically stretchable in the radial direction at least in a longitudinal section. This has the advantage that the steam line can expand at least in a longitudinal section in the radial direction in order to subsequently be able to absorb steam generated by the instantaneous water heater after the steam cleaning device has been switched off.
  • the steam can cool in the steam line, the pressure in the steam line decreases again and the steam line contracts in the radial direction. Water condensing within the steam line can be discharged via the steam delivery device after the steam cleaning device has been restarted.
  • the steam line is elastically stretchable over its entire length in the radial direction.
  • the volume of the vapor-receiving space is at least 0.8 times the volume of the through-flow heater receiving the vapor. This has the advantage that, after switching off the steam cleaning device within the steam line and the flow heater, only set relatively low pressure peaks, which are generated by the subsequent evaporation of water in the water heater.
  • the pressure in the steam line and in the flow heater after switching off the steam cleaning device is a maximum of 6 bar, in particular a maximum of 5 bar.
  • the volume of the steam line is at least twice as large as the steam-receiving volume of the instantaneous water heater.
  • the steam line is formed in an advantageous embodiment of the invention as an elastically extensible steam hose.
  • the steam hose may for example have a length of 2 m.
  • the supply line and the steam line are elastically stretchable in the radial direction.
  • the supply line is designed in the form of an elastically stretchable supply hose.
  • the steam line is formed at least in a longitudinal section as a flexible hose, which is wrapped by a braid or in the wall of a mesh is integrated.
  • the braid forms a reinforcement.
  • the braiding angle ie. the angle between the longitudinal axis of the tube and the fibers of the braid is preferably 40 °.
  • a silicone material can be used come.
  • the steam line in the region with a braid angle of 40 ° in the radial direction by 10% to 15%, preferably 13% are stretched.
  • the hose forming at least one longitudinal section of the steam line has longitudinal sections with different braiding angles, for example braiding angles in the range of 30 ° to 60 °.
  • the supply line is configured at least in a longitudinal section as a flexible hose with a reinforcement made of a braid, wherein the braiding angle is 40 °.
  • the control of the pump takes place in dependence on the pressure prevailing in the steam line. If the pressure prevailing in the steam line falls below a predetermined minimum value, the pump is switched on. If the pressure prevailing in the steam line exceeds a predetermined maximum value, the pump is switched off again. If the steam release valve is opened by the user, then a prescribable operating pressure is formed in the steam line which lies in the range between the minimum value and the maximum value of the pressure.
  • the pump is preferably designed as an oscillating piston pump.
  • the pump is controllable in dependence on the temperature of the water heater. This has the advantage that the water heater is supplied from the pump only when the water from the water heater can also be evaporated. Only then, when the water heater has reached its operating temperature, it is fed by the pump water. It is therefore at the start of the steam cleaning device from the steam delivery member at most the water is discharged, which is condensed after the previous shutdown of the steam cleaner in the steam line, but it is not discharged water, the after commissioning of the steam cleaning device was funded by the pump.
  • the instantaneous water heater can be controlled as a function of the pressure prevailing in the steam line. This gives the possibility to turn off the water heater when the prevailing in the steam line pressure reaches a predetermined maximum value.
  • the energy consumption of the steam cleaning device can be kept very low. If the pressure prevailing in the steam line falls below a predetermined minimum value, the instantaneous water heater is switched on again in the case of a pressure-dependent control of the instantaneous water heater.
  • a power supply line of the pump and / or the water heater connected pressure switch which opens and closes in response to the ruling in the steam line downstream of the water heater pressure. If the pressure reaches a predetermined maximum value, the pressure switch opens, interrupting the power supply of the pump and / or the flow heater. When the pressure prevailing in the steam line reaches a predetermined minimum value, the pressure switch closes and thus restores the power supply of the pump and / or the water heater.
  • the pump and / or the water heater are controllable depending on the level of the water tank.
  • the water heater can be turned off in an advantageous embodiment, provided that the level of the water tank falls below a minimum value and thus the water heater can not provide a sufficient amount of water more available.
  • the Pump and preferably also the water heater are turned on again as soon as the level of the water tank reaches a predetermined maximum value.
  • a float switch is connected in a power supply line of the pump and / or the water heater.
  • the power supply of the pump and / or the water heater can be easily controlled depending on the level of the water tank.
  • the steam line of the steam cleaning device according to the invention serves as a vapor receiving space. This has the consequence that the steam line is filled with steam over its entire length when the
  • Steam cleaner is turned off.
  • the steam in the steam line then cools and can condense in the steam line. This can result in the formation of a negative pressure in the steam line and in the supply line.
  • water can be sucked from the water tank into the supply line, the flow heater and the steam line through the pump.
  • a ventilation valve is connected in the steam line and / or in the supply line. The vent valve releases a flow connection to the atmosphere as soon as a vacuum is formed in the steam line and / or in the supply line.
  • a pressure relief valve is connected in the steam line and / or in the supply line. The pressure relief valve releases a flow connection to the atmosphere, if due to a malfunction of the pump or the flow heater in the steam line and / or in the supply line forms an impermissibly high pressure.
  • the pressure relief valve opens when reaching a maximum allowable pressure of 6 bar.
  • a ventilation valve is integrated in the pressure relief valve. As already mentioned, it can be ensured by means of a ventilation valve that after switching off the steam cleaning device no water from the water tank is sucked into the steam line.
  • the integration of the ventilation valve in a pressure relief valve a particularly compact design is achieved.
  • the overpressure valve can in this case form a preassemblable unit in combination with the venting valve. This facilitates the assembly of the steam cleaning device and reduces its manufacturing cost.
  • the pressure relief valve has a first closing body, which tightly rests in a closed position on a valve seat and in the presence of a prevailing upstream of the first closing body predetermined overpressure against a force acting on him restoring force in a valve seat releasing open position is movable and the a passage, on which a second closing body is movably mounted, wherein the second closing body closes the passage in a closed position and in the presence of a prevailing upstream of the second closing body negative pressure in an opening releasing the open position is movable.
  • the first closing body of the pressure relief valve is tight against a valve seat, so that the pressure relief valve assumes its closed position. takes.
  • the first closing body has a passage.
  • the passage is arranged centrally on the first closing body.
  • the passage of the first closing body of a second closing body is tightly closed. If, in particular after switching off the steam cleaning device, a negative pressure forms upstream of the second closing body, then the second closing body automatically moves into an open position, in which it releases the passage so that air can reach the area upstream of the second closing body via the passage, to counteract a negative pressure.
  • the direction of movement of the second closing body of its closed position in its open position is favorably opposite to the direction of movement of the first closing body of the closed position in its open position.
  • the direction of movement of the second closing body is directed vertically upward in the operating position of the steam cleaning device. Under the action of a negative pressure, the second closing body can be lifted from the passage of the first closing body in the vertical direction.
  • the first closing body is designed piston-shaped in an advantageous embodiment of the invention. It may have a substantially cylindrical head part, which is preferably followed by a radially inwardly directed step, a sleeve which is surrounded by a voltage applied to the restoring return spring.
  • the return spring can be clamped between the head part of the first closing body and a stop face spaced from the head part.
  • the second closing body is advantageously configured mushroom-shaped. It can have a through opening of the first closing body by cross-shaft, which is integrally connected to a seated on the first closing body head.
  • the second closing body is held captive on the first closing body. It can be provided, for example, that the second closing body can be latched to the first closing body.
  • the pressure relief valve and the vent valve are integrated in an advantageous embodiment of the invention in a pressure equalization line, which is in flow communication with the steam line and / or with the supply line.
  • the overpressure valve in combination with the venting valve and the pressure switch forms a preassemblable structural unit which can be connected to the pressure line and / or to the supply line. This facilitates the installation of the steam cleaning device.
  • Figure 1 a schematic representation of a first advantageous embodiment of a steam cleaning device according to the invention
  • FIG. 2 shows a circuit arrangement of the steam cleaning device from FIG. 1;
  • FIG. 3 is a schematic representation of a second advantageous embodiment of a steam cleaning device according to the invention.
  • FIG. 4 shows a circuit arrangement of the steam cleaning device from FIG. 3;
  • FIG. 5 a sectional view of a preassemblable structural unit of both the
  • Figure 6 an enlarged view of detail A of the pre-assembled
  • Figure 7 is an enlarged view of detail A of the preassembled unit according to Figure 6, wherein the pressure relief valve assumes its open position and the venting valve in its closed position, and
  • Figure 8 an enlarged view of detail A of the preassembled unit according to Figure 6, wherein the pressure relief valve assumes its closed position and the venting valve in its open position.
  • FIG. 1 schematically shows a first advantageous embodiment of a steam cleaning device according to the invention, which is indicated overall by the reference numeral 10.
  • the steam cleaning device 10 has a housing 12, in which a water tank 14 is arranged, which is connected to the input of a pump 16.
  • the pump 16 is preferably designed as an oscillating piston pump. It is connected via a supply line 18 to the inlet 20 of an electrically heatable water heater 22 in connection.
  • An outlet 24 of the flow heater 22 is connected to a steam line, which in the illustrated embodiment is configured as an elastically expandable steam hose 26.
  • a steam delivery device in the form of a steam gun 28 is connected.
  • the steam gun 28 has a steam delivery valve 30 which is used by the user of the steam cleaner 10 by means of a pivoting lever 32 against the action of a known per se and therefore to achieve a better overview in the drawing, not shown return spring can be actuated.
  • the steam discharge valve 30 In the unactuated state, the steam discharge valve 30 assumes its closed position, in which it closes the free end of the steam hose 26. The user may move the steam dispensing valve 30 to an open position in which it releases the free end of the steam hose 26.
  • the steam hose 26 is within the housing 12 with a preassembled unit 34 in connection, which has a pressure relief valve 36, a vent valve 38 and a pressure switch 40.
  • the assembly 34 will be explained in more detail with reference to Figures 5 to 8.
  • water can be evaporated, which is supplied to the water heater 22 via the supply line 18 of the pump 16.
  • the generated steam can be supplied via the steam hose 26 of the steam gun 28 and directed by this on an object to be cleaned, for example on a hard surface.
  • FIG. 2 schematically shows a circuit arrangement of the steam cleaning device 10.
  • the pump 16 Via a first power supply line 42 and a second power supply line 44, the pump 16 can be supplied with electrical energy.
  • a float switch 46 is connected, which opens and closes depending on the level of the water tank 14. If the level of the water tank 14 reaches a minimum value, the float switch 46 opens. If the water tank 14 is subsequently filled by the user, then the float switch 46 closes when the fill level of the water tank 14 reaches a predetermined maximum value.
  • float switches 46 are known per se to those skilled in the art.
  • the pressure switch 40 In series with the float switch 46, the pressure switch 40 is connected in the first power supply line 42.
  • the pressure switch 40 closes when the steam hose 26 downstream of the water heater 22 prevails Pressure below a predetermined minimum value, and it opens when the pressure prevailing in the steam hose 26 downstream of the water heater 22 pressure exceeds a predetermined maximum value.
  • the maximum value is 3.2 bar in an advantageous embodiment.
  • the minimum value is preferably 2.0 bar.
  • a first thermostat 48 is connected in series with the float switch 46 and the pressure switch 40.
  • the first thermostat 48 detects the temperature of the water heater 22 and closes when the water heater 22 has reached its operating temperature.
  • the supply of the water heater 22 with electrical energy via a third power supply line 50, which branches off in the area between the float switch 46 and the pressure switch 40 from the first power supply line 42, and a fourth power supply line 52, which branches off from the second power supply line 44.
  • a second thermostat 54 is connected, which detects the temperature of the water heater 22 and opens when the water heater 22 exceeds a predetermined maximum temperature.
  • a fuse 56 is connected, which interrupts the fourth power supply line 52, if the temperature of the water heater 22, for example due to a malfunction of the second thermostat 54, exceeds a predetermined shutdown temperature.
  • the steam cleaning device 10 has a known per se and therefore in the drawing to achieve a better overview, not shown main switch with which the power supply both the pump 16 and the water heater 22 can be manually switched on and off.
  • the user can put the steam cleaning device 10 into operation. If the level of the water tank 14 exceeds the predetermined minimum value, then the float switch 46 assumes its closed position. If the pressure in the steam hose falls below a predetermined minimum value, then the pressure switch 40 is also closed. It is then first heated water heater 22, wherein both the second thermostat 54 and the fuse 56 to release the power supply of the water heater 22. When the instantaneous water heater 22 reaches its operating temperature, the first thermostat 48 closes and the pump 16 is supplied with electrical energy. The pump 16 then provides the water heater water from the water tank 14, which is evaporated in the water heater 22.
  • the generated steam is taken up by the steam hose 26, which forms over its entire length a radially elastic stretchable vapor receiving space. This increases the pressure in the steam hose 26 and via the water heater 22, the pressure in the supply line 18 increases. When the pressure in the steam hose 26 reaches a predetermined maximum value, the power supply of the pump 16 is interrupted by the pressure switch 40. If the pressure in the steam hose 26 continues to increase due to, for example, a malfunction of the pressure switch 40, then the overpressure valve 36 changes to its open position upon reaching a maximum permissible pressure so that steam generated can be released to the atmosphere.
  • the steam After switching on the steam cleaning device 10, the steam is available to the user within a short heating time at the steam gun 28. By actuating the steam delivery valve 30, the user can then direct the steam at an object to be cleaned. If the steam cleaning device 10 is turned off, the pump 16 and the water heater 22 are no longer supplied with electrical energy. However, the heat stored in the water heater 22 has the consequence that water, which is still in the water heater 22 after switching off the steam cleaning device 10, is evaporated. This leads to an increase in pressure in the steam hose 26, which expands because it consists of an elastically deformable plastic material and preferably has a reinforcement made of a braid with a braiding angle of preferably 40 °.
  • the steam hose 26 thus forms a steam storage, in which the steam gradually cools after switching off the steam cleaning device 10. If the pressure in the steam hose 26 falls below the atmospheric pressure surrounding the steam cleaning device 10, the venting valve 38 opens and air can flow into the steam hose 26 via the venting valve 38, so that the pressure in the steam hose 26 can adjust to the atmospheric pressure. This prevents that in the case of a negative pressure water from the water tank 14 through the pump 16 through the supply line 18 and the water heater 22 can be sucked into the steam hose 26.
  • FIGS. 3 and 4 a second advantageous embodiment of a steam cleaning device according to the invention, indicated overall by the reference numeral 70, is shown schematically.
  • the steam cleaning device 70 is designed substantially identical to that described above with reference to Figures 1 and 2 steam cleaning device 10.
  • the same reference numerals are used in Figures 3 and 4 as in Figures 1 and 2 and with respect to these components is to avoid from repetitions to the above explanations.
  • the steam cleaner 70 differs from the steam cleaner 10 in that the third power supply line 50 does not branch off between the float switch 46 and the pressure switch 40 from the first power supply line 42, but the third power supply line 50 branches off from the first power supply line 42 between the pressure switch 40 and the first thermostat 48.
  • the pump 16 but also the water heater 22 are controlled in response to the pressure prevailing in the steam hose 26.
  • Exceeds the pressure prevailing in the steam hose 26 pressure a predetermined maximum value then opens the pressure switch 40 so that both the power supply of the pump 16 and the power supply of the water heater 22 is interrupted in the steam cleaning device 70. If the pressure prevailing in the steam hose 26 drops below a predetermined minimum value, then the pressure switch 40 in the steam cleaning device 70 provides the power supply to the pump 16 and also to the instantaneous water heater 22 again.
  • the overpressure valve 36, the venting valve 38 and the pressure switch 40 form a preassemblable unit.
  • This assembly 34 comes in both the steam cleaning device 10 and the
  • Steam cleaner 70 is used.
  • the pre-assembly 34 is shown schematically. It comprises a line arrangement 72 with a steam inlet 74, which is connectable to the outlet 24 of the flow heater 22, a steam outlet 76, to which the steam hose 26 can be connected, a connection piece 78 for the pressure switch 40 and with a step 80 radially widening Pressure equalization line 82.
  • a pipe section 84 is connected, which is open at its free end 86.
  • the pressure relief valve 36 includes a valve seat 88 and a first closing body 90 which is pressed by a return spring 92 in the direction of the valve seat 88, wherein between the first closing body 90 and the valve seat 88, a sealing ring 94 is arranged in the form of a gasket.
  • the valve seat 88 is formed by the step 80.
  • the first closing body 90 is designed in the manner of a piston and has a closing body head 96 on which the sealing ring 94 is arranged and to which a closure body sleeve 100 is connected via a stepped narrowing 98. lumpy connects.
  • the closing body sleeve 100 is surrounded in the circumferential direction by the return spring 92, which is designed as a helical spring and is supported on the one hand on the stepped constriction 98 and on the other hand on the tube piece 84.
  • the first closing body 90 has a passage 102, which passes axially through the closing body head 96 and in which a second closing body 104 is held axially movable.
  • the second closing body 104 forms the ventilation valve 38 in combination with the passage 102 and the sealing ring 94.
  • the second closing body 104 is configured in the shape of a mushroom and comprises a shaft 106, which passes through the passage 102 and the sealing ring 94 and is integrally connected to a head 108 which rests on the sealing ring 94.
  • the assembly 34 is shown during the normal operating state of the steam cleaning device 10. Steam generated by the instantaneous water heater 22 may flow into the conduit assembly 72 via the steam inlet 74, and steam may flow out of the conduit assembly 72 via the steam outlet 76 to subsequently access the steam hose 26.
  • the pressure within the vapor tube 26 is consistent with the pressure within the conduit assembly 72 and is detected by the pressure switch 40 via the fitting 78.
  • the overpressure valve 36 is here as well as the vent valve 38 is closed.
  • the first closing body 90 lies tightly against the valve seat 88 with the interposition of the sealing ring 94, and the second closing body 104 lies close to the passage 102.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

L'invention concerne un appareil de nettoyage à la vapeur (10) comprenant un chauffe-eau instantané (22) dont l'entrée (20) est raccordée, par l'intermédiaire d'une conduite d'alimentation (18), à une pompe (16) reliée à un réservoir d'eau (14), et dont la sortie (24) est raccordée, par l'intermédiaire d'une conduite de vapeur (26), à un organe de distribution de vapeur (28), la pompe (16) pouvant être régulée en fonction de la pression présente dans la conduite de vapeur (26). L'invention vise à perfectionner l'appareil de nettoyage à la vapeur (10) afin de permettre sa production à moindre coût, et de permettre une commande améliorée de la distribution de vapeur par l'utilisateur. À cette fin, l'organe de distribution de vapeur (28) est doté d'une soupape de distribution de vapeur (30) à commande manuelle et la conduite de vapeur (26) forme une chambre de réception de vapeur s'étendant jusqu'à la soupape de distribution de vapeur (30), destinée à recevoir la vapeur lorsque la soupape de distribution de vapeur (30) est fermée.
PCT/EP2015/060164 2014-05-08 2015-05-08 Appareil de nettoyage à la vapeur Ceased WO2015169943A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15719759.1A EP3140575A2 (fr) 2014-05-08 2015-05-08 Appareil de nettoyage à la vapeur
CN201580023778.7A CN106457319A (zh) 2014-05-08 2015-05-08 蒸汽清洁机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014106468.2A DE102014106468A1 (de) 2014-05-08 2014-05-08 Dampfreinigungsgerät
DE102014106468.2 2014-05-08

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DE102017117054A1 (de) 2017-07-27 2019-01-31 Hartwig Sammann Dampfreinigungsvorrichtung und -verfahren zum Reinigen von Maschinen oder Maschinenteilen
DE102017117054B4 (de) * 2017-07-27 2020-12-10 Hartwig Sammann Dampfreinigungsvorrichtung und -verfahren zum Reinigen von Maschinen oder Maschinenteilen
CN114904826A (zh) * 2022-05-13 2022-08-16 厦门品贝智能科技有限公司 基于气-液泵结构的蒸汽清洗机及其控制方法

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DE202015009648U1 (de) 2018-10-17
WO2015169943A3 (fr) 2016-02-25
EP3140575A2 (fr) 2017-03-15
CN106457319A (zh) 2017-02-22
DE102014106468A1 (de) 2015-11-12

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