Household dryer for linen with steam generator

FIELD: textiles, paper.

SUBSTANCE: household dryer (1) for linen comprises an outer box-body (2) mounted inside it with the ability of rotation about its longitudinal axis (L), drying drum (3) for laundry to be dried, a generator (7) of hot air to circulate the hot air stream inside the drying drum (3), a steam generator (20) to supply steam to the drying drum (3) and a drive (6) to rotate the drying drum (3) around its longitudinal axis (L). End wall (3a) of the drying drum (3) is made breathable for air supply to the drum (3), and the hot air generator (7) contains a pipe (8) of air recirculation, which exhaust end is connected to the end wall (3a) of the drying drum (3), and means (9) of ventilation to form along the pipeline (8) of air stream recirculation (ƒ) entering the drying drum (3) through its end wall (3a). The steam generator (20) delivers steam to the drying drum (3) through a nozzle (22) facing the end wall (3a) of the drying drum (3), and the drive (6) contains an electric motor (12), which rotates the drying drum (3) about its longitudinal axis (L) and actuates the device (9) of ventilation.

EFFECT: design improvement.

1 cl, 1 dwg

 

The invention relates to a domestic clothes dryer with steam generator, in particular for household drum dryer with steam generator.

Known drum dryer mainly consist of outer box-like body essentially in the form of a parallelepiped that is installed inside of it with a possibility of rotation around the axis of the cylindrical drum for drying clothes, directly addressed to the made in the front wall of the housing opening for loading and unloading, door, hinge mounted on the front wall of the housing with the possibility of closing the hole for sealing the drum, and a motor for rotating the drum around its longitudinal axis inside the case.

Drum dryer of the type indicated above also contains a closed circuit with generator hot air to create a circulating stream of hot air with low moisture content inside the drying drum, providing a flow of air through the dryer drum and inside his underwear for quick drying.

In most widespread on the market dryers closed circuit with generator hot air contains heat exchanger air/air and a heater arranged one after another along a recirculation pipe, two ends of which are connected with against the opposite sides of the drying drum, and an electric centrifugal fan or similar device located in the recirculation piping to create inside air flow. Heat exchanger air/air provides fast cooling flow of air coming from the drying drum to condense excess moisture. The heater provides rapid heating of the air stream leaving the heat exchanger and fed back into the clothes dryer, so that entering the dryer the air is rapidly heated to a temperature greater than or equal to the temperature resulting from the drying cylinder of air.

Some famous drum dryer also includes a steam generator, which at the end of the drying cycle takes the steam flow in the dryer to remove or at least significantly reduce generated during the drying cycle, the folds on the fabric.

Currently in the steam generators have essentially the same design as that of the regular irons with a separate boiler, and contain the tank with demineralized water, mounted in the upper part of the housing of the device so that it can be easily manually replenish with distilled or demineralized water, and the electric boiler to create steam, usually located below the tank with demineralized water and connected with a nice through a connecting tube. Water under the force of gravity acts in the electric boiler through a solenoid or similar device, which is installed in the connecting tube.

For optimal eliminate wrinkles in the dryer fabric at the end of the drying cycle, electronic Central control module of the dryer stops electric centrifugal fan generator hot air to stop air circulation and includes a steam generator for supplying jets of steam into the drying drum, and the motor periodically changes the direction of rotation of the drying drum.

Stop air circulation prevents immediate suction of the steam generator hot air from the drying drum, preventing the escape of steam on linen. The inlet pipe of the recirculation air generator, hot air is actually in the door directly below the nozzle for steam.

Since the optimum resolution via a pair of folds of tissue requires constant movement of the tissue in a saturated steam atmosphere, and all modern appliances drum dryer with steam generator contains two independent electric motor, each of which is individually controlled by an electronic Central control module.

The objective of the invention is the creation of a domestic drum su is ilki for linen features eliminate folds of tissue by means of steam, which is cheaper than present currently on the market.

This problem is solved in a domestic clothes dryer with the characteristics set out in paragraph 1 and preferably in any of the dependent claims.

Below the invention is described with reference to the attached drawing, which shows household clothes dryer according to the invention with parts shown in section and parts removed for clarity of view, side view.

Dryer 1 for linen contains an outer box-like casing 2 preferably in the form of a parallelepiped that is installed inside of it with a possibility of rotation around the axis of the preferably cylindrical bell-shaped drum 3 is subjected to drying, directly addressed to the made in the front wall of the housing 2 hole 2A for loading and unloading, and the door 4, pivotally mounted on the front wall of the housing 2 with the possibility of closing holes 2A for sealing drum 3.

More specifically, in the shown example, the drying drum 3 is mounted horizontally inside the housing 2 on the set of horizontal support rollers 5, which are mounted on the housing 2 with the possibility of free rotation of the drying drum 3 around its longitudinal axis L.

Case 2, a drying drum 3, door 4 and the reference R is the faces 5 are known and therefore not described in detail.

As shown in the drawing, the dryer 1 for linen contains the actuator 6 for rotating the drying drum 3 around its longitudinal axis L within the casing 2, and a closed circuit with the generator 7 hot air, mounted inside the housing 2 and is arranged to implement the circulation through the drying drum 3 stream of hot air, which has low humidity and flows through the inside of the drum 3 underwear for his quick drying.

A closed circuit with the generator 7 hot air ensures a gradual withdrawal of air from the drying drum 3 by removing excess moisture from the hot air heats the dehydrated air to the desired temperature, usually higher than the temperature of the air leaving the drying drum 3, and delivers the heated dehydrated air back into the drying drum 3, where it flows through underwear for his quick drying.

In other words, the generator 7 hot air ensures a constant dehydration and heat circulating inside the drum 3 of air for quick drying inside his underwear and essentially contains the pipeline 8 recirculated air mode, the two ends of which are connected with the opposite sides of the drying cylinder 3; an electric centrifugal fan 9 or air circulation pump of another type, located along the of Truboprovod 8 recycling to create the inside of the flow f of air, flowing through the drying drum 3 and linen, the heat exchanger 10 type air/air or similar device (capacitor)that is installed in the recirculation line 8 so that the flow f of air from the drying drum 3 and the flow w of cold external air flow through it simultaneously, and the heat exchanger 10 is made so that the flow w of cold air quickly cools the flow f of the air leaving the drying drum 3, for condensation on the inside of the flow f of air excess moisture; and an electric heater 11 (in this example a resistor)located in the recirculation line 8 after the heat exchanger 10 and ensure rapid heating of the flow f of air supplied from the heat exchanger 10 back into the drying drum 3, so that coming into the drying drum 3, the air is rapidly heated to a temperature, preferably greater than or equal to the temperature of the air leaving the drying cylinder 3.

The inlet end of the pipe 8 recycling is located in the 4 door and turned to the front opening of the drying drum 3. End wall 3A of the drying drum 3 is made of a perforated or at least permeable to air, allowing the air in the drum 3. The outlet end of the pipe 8 recycling hermetically connected directly with the end wall is coy 3A of the drying drum 3.

The centrifugal fan 9 is mechanically connected to the actuator 6 so that it is driven into rotation together with the drying drum 3, and is made with the possibility of the formation of flow f of air flowing along the pipeline 8 recirculated air from the inlet end of the pipe 8 recirculation, i.e. from the door 4, the exhaust end of the pipe 8 recirculation, i.e. a perforated end wall 3A of the drying drum 3.

More specifically, the actuator 6 includes a motor 12 mounted inside the housing 2 below the drying drum 3, the pulley 13 that is located on the output shaft of the electric motor 12, and the drive belt 14 that is located around the drying cylinder 3 and the pulley 13. The centrifugal fan 9 is directly connected to the motor 12 so that the impeller/rotor centrifugal fan 9 is directly driven from the output shaft of the electric motor 12.

In other words, the motor 12 drives as the drying cylinder 3 and the centrifugal fan 9.

As shown in the drawing, the heat exchanger 10 is located in the lower part of the housing 2 and includes a tank 15 for condensed water, which is collected distilled water formed inside the heat exchanger 10 as a result of condensation of excess moisture from the flow f of air coming from the drying cylinder 3. Evident is, that the tank 15 with the condensed water is located in the lower part of the heat exchanger 10.

Since the capacity of the tank 15 with the condensed water is preferably sufficient to hold distilled water formed during only one cycle, the generator 7 hot air also contains a drain circuit 16 to drain distilled water from the tank 15.

Preferably, the discharge circuit 16 contains manually remove the tank 17 large capacity for waste water, which is installed with the possibility of easy removal inside the housing 2, preferably in the upper part of the housing, and an electric pump 18, which sucks the water from the tank 15 and delivers it to the tank 17 through the connecting tube 19.

In the present example, the pump 18 is a submersible electric pump 18 located at the bottom of the tank 15, which include the well-known manner, when the water level in the tank 15 exceeds the threshold value.

Similarly, some well-known dryers for Laundry dryer 1 for linen also contains a steam generator 20, is configured to generate and supply a jet of steam into the drying drum 3 to eliminate or at least greatly reduce generated during the drying cycle, the folds on the fabric.

As shown in the drawing, the steam generator 20 contains ELEH the electric boiler 21, made with the possibility of immediate transformation fed him a specified amount of water into the flow of low pressure steam, the pressure which is slightly above the external pressure, the steam jet nozzle 22 directed toward the perforated end wall 3A of the drying drum 3 and located outside the drum, the nozzle 22 is arranged to supply jets of low-pressure steam through the end wall 3A to the inside of the drying drum 3, and the exhaust manifold 23 a pair of connecting the outlet of the electric boiler 21 with steam jet nozzle 22 for direct submission to her low-pressure steam generated electric boiler 21.

In the presented example the exhaust manifold 23 is located outside of the pipeline 8 recirculation and steam jet nozzle 22 is located at the discharge end of the pipe 8 recycling. Obviously, in other embodiments of the invention, the nozzle 22 may be located outside of the outlet end of the pipe 8 recycling, but in any case it should be addressed to the perforated end wall 3A of the drying drum 3.

Finally, the steam generator 20 includes a reservoir 24 demineralized water, which is installed inside the housing 2 over the electric boiler 21 and connected with it the connecting tube 25, and the solenoid 26 or similar to the device which is located in the connecting tube 25 to control the outflow of water from the reservoir 24 into an electric boiler 21.

It is obvious that water under gravity fed from the reservoir 24 into an electric boiler 21.

Electric boiler 21, the steam jet nozzle 22, the exhaust manifold 23, the reservoir 24 demineralized water and the solenoid 26 are known and not described in detail.

As shown in the drawing, to eliminate or greatly reduce the need to refill manually demineralized water tank 24 of the steam generator 20 is preferably connected to a drain circuit 16 of the generator 7 hot air to obtain parts of distilled water discharged from the tank 15.

More specifically, in the example shown, the reservoir 24 for water is connected with the drain circuit 16 of the generator 7 hot air, namely the connecting tube 19 through the filter 27, is arranged to delay the Pooh and/or fiber particles.

Like any other released recently on the market of electric home appliance, dryer 1 for linen also contains an electronic Central control module 28, which controls the motor 12, the heat exchanger 10 (or, rather, the cooling fan 29 of the heat exchanger 10, which generates flowing through the flow w of cold air and heat is the motor 11 is set in accordance with the established in his memory by the program to perform the user-selected drying cycle.

In addition to the above, the control module 28 also controls the steam generator 20 (i.e. electric boiler 21 and the solenoid 26) specified as established in his memory, for supplying jets of steam with low pressure in the drying drum 3 through the perforated end wall 3A, when required in accordance with the user-selected drying cycle.

The General operation of the dryer 1 is evident from the above description so that further explanation is not required.

The advantage of installing steam jet nozzle 22 in front of the perforated end wall 3A of the drying drum 3 is one of the motor (i.e. the motor 12) to simultaneously drive the drying cylinder 3 and the centrifugal fan 9, which significantly reduces production costs.

In fact, in contrast to the known dryers for clothes with steam generator, in the dryer 1 for linen jet of steam is introduced into the drying drum 3 with a stream of hot air supplied into the drying drum 3 through the perforated end wall 3A, performing, thus, eliminating the "flowing steam" folds in the drum 3 tissues.

In other words, air circulation, carried out by the generator 7 hot air, helps to perform optimal elimination folds TC is in the drum 3 through steam and it should not be switched off during rotation of the drying drum 3 in both directions of rotation.

In fact, similarly centrifugal fans known dryers for clothes, centrifugal fan 9 is arranged to generate a flow f of air flowing from the inlet end of the pipe 8 recirculated to the exhaust end of the pipe 8 recycling, regardless of the direction of rotation of the impeller/rotor fan.

Obviously, in the above household dryer 1 for linen can be changes made, however, without going beyond the scope of invention.

For example, the motor 12 of the actuator 6 may be mechanically connected to the fan 29 of the cooling heat exchanger 10. In this case, the motor 12 will be simultaneously set in motion a clothes dryer 3, the centrifugal fan 9 and the cooling fan 29.

In additional not present embodiment of the invention the exhaust manifold 23 may be held until the steam jet nozzle 22 on the inside of the rear pipe section 8 recycling.

1. Household dryer (1) for linen, containing an outer box-shaped housing (2)mounted inside with the possibility of rotation around its longitudinal axis (L) clothes dryer (3) subject to drying, the generator (7) hot air to circulate the flow of hot air inside the drying drum (3), the generator (20) steam for the steam supply to the dryer drum 3) and the actuator (6), containing an electric motor (12), mechanically connected with tumble dryer (3) for rotation of the latter around its longitudinal axis (L)and end wall (3A) of the drying drum (3) is made breathable to supply air into the drum (3)and the generator (7) hot air contains a pipeline (8) recirculation of air, the outlet end of which is connected to the front wall (3A) of the drying drum (3), and means (9) ventilation for forming along the pipeline (8) flow (f) air entering clothes dryer (3) through its end wall (3A), characterized in that the motor (12) is arranged to actuate the means (9) ventilation, and the generator (20) pair is arranged to supply steam into the drying drum (3) through the nozzle (22)facing the end wall (3A) of the drying drum (3).

2. Dryer according to claim 1, characterized in that the generator (7) hot air further comprises an installed along the pipeline (8) recycling the heat exchanger (10) for cooling flow (f) air from the drying drum (3) and condensation of excess moisture and is located along the pipeline (8) recycling the heater (11) to heat flow (f) of the air coming from the heat exchanger (10) back into the clothes dryer (3).

3. Dryer according to claim 1, characterized in that the generator (20 pair contains electric boiler (21), made with the possibility of immediate conversion of the supplied water in the flow of low-pressure steam, and the exhaust manifold (23) a pair of connecting the outlet of the electric boiler (21) from the nozzle (22) for direct submission to her low-pressure steam generated electric boiler (21).

4. Dryer according to claim 2, characterized in that the generator (20) pair contains electric boiler (21)made with the possibility of immediate conversion of the supplied water in the flow of low-pressure steam, and the exhaust manifold (23) a pair of connecting the outlet of the electric boiler (21) from the nozzle (22) for direct submission to her low-pressure steam generated electric boiler (21).

5. Dryer according to claim 3, characterized in that the generator (20) further comprises a pair of tank (24) for water provided with electric boiler (21).

6. Dryer according to claim 4, characterized in that the generator (20) further comprises a pair of tank (24) for water provided with electric boiler (21).

7. Dryer according to claim 2, characterized in that the heat exchanger (10) comprises a tank (15) for water made with the possibility of collecting distilled water formed inside the heat exchanger (10) as a result of condensation of excess moisture from the stream (f) of the air leaving the drying drum (3)and the drain circuit (16) DL the drain distilled water from the tank (15).

8. Dryer according to claim 3, characterized in that the heat exchanger (10) comprises a tank (15) for water made with the possibility of collecting distilled water formed inside the heat exchanger (10) as a result of condensation of excess moisture from the stream (f) of the air leaving the drying drum (3)and the drain circuit (16) to drain the distilled water from the tank (15).

9. Dryer according to claim 4, characterized in that the heat exchanger (10) comprises a tank (15) for water made with the possibility of collecting distilled water formed inside the heat exchanger (10) as a result of condensation of excess moisture from the stream (f) of the air leaving the drying drum (3)and the drain circuit (16) to drain the distilled water from the tank (15).

10. Dryer according to claim 5, characterized in that the heat exchanger (10) comprises a tank (15) for water made with the possibility of collecting distilled water formed inside the heat exchanger (10) as a result of condensation of excess moisture from the stream (f) of the air leaving the drying drum (3)and the drain circuit (16) to drain the distilled water from the tank (15).

11. Dryer according to claim 6, characterized in that the heat exchanger (10) comprises a tank (15) for water made with the possibility of collecting distilled water formed inside the heat exchanger (10) as a result of condensation of excess moisture from the stream (f) of the air leaving the drying b is Rabanne (3), and the drain circuit (16) to drain the distilled water from the tank (15).

12. The dryer of claim 10, characterized in that the reservoir (24) for water is connected to the drain circuit (16) of the generator (7) hot air for receiving parts of distilled water, drained from the tank (15) of the heat exchanger (10).

13. Dryer according to claim 11, characterized in that the reservoir (24) for water is connected to the drain circuit (16) of the generator (7) hot air for receiving parts of distilled water, drained from the tank (15) of the heat exchanger (10).

14. Dryer according to any one of claims 1 to 13, characterized in that the nozzle (22) of the generator (20) pair is installed inside the exhaust end of the pipe (8) recycling generator (7) hot air.

15. Dryer according to any one of claims 1 to 13, characterized in that the end wall (3A) of the drying drum (3) is a perforated wall.

16. Dryer according to 14, characterized in that the end wall (3A) of the drying drum (3) is a perforated wall.

17. Dryer according to any one of claims 1 to 13, 16, characterized in that the drum (3) is made essentially in the form of a cylindrical bell-shaped drum (3).

18. Dryer according to 14, characterized in that the drum (3) is made essentially in the form of a cylindrical bell-shaped drum (3).

19. Dryer according to item 15, wherein the drying drum (3) is made, with the society, in the form of a cylindrical bell-shaped drum (3).

20. Dryer according to any one of claim 2 to 13, 16, 18, 19, characterized in that the heat exchanger (10) represents the heat exchanger (10) type air/air, located along the pipeline (8) recycling and configured to provide simultaneous flow through stream (f) air from the drying drum (3) and the second external cold flow (w) of the air in the heat exchanger (10) has a second means (29) ventilation made with the possibility of creating a cold stream (w) air, and an electric motor (12) mechanically connected with the second means (29) ventilation to drive it.

21. Dryer according to 14, characterized in that the heat exchanger (10) represents the heat exchanger (10) type air/air, located along the pipeline (8) recycling and configured to provide simultaneous flow through stream (J) air from the drying drum (3) and the second external cold flow (w) of the air in the heat exchanger (10) has a second means (29) ventilation made with the possibility of creating a cold stream (w) air, and an electric motor (12) is mechanically connected with the second means (29) for ventilation his drive.

22. Dryer for 15, characterized in that the heat exchanger (10) represents the heat exchanger (10)type air/air, located along the pipeline (8) recycling and configured to provide simultaneous flow through stream (f) air from the drying drum (3) and the second external cold flow (w) of the air in the heat exchanger (10) has a second means (29) ventilation made with the possibility of creating a cold stream (w) air, and an electric motor (12) is mechanically connected with the second means (29) ventilation to drive it.

23. Dryer according to 17, characterized in that the heat exchanger (10) represents the heat exchanger (10) type air/air, located along the pipeline (8) recycling and configured to provide simultaneous flow through stream (f) air from the drying drum (3) and the second external cold flow (w) of the air in the heat exchanger (10) has a second means (29) ventilation made with the possibility of creating a cold stream (w) air, and an electric motor (12) is mechanically connected with the second means (29) for ventilation his drive.



 

Same patents:

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3 cl, 3 dwg

FIELD: drying technique.

SUBSTANCE: drying machine has housing with pivotal member for attachment of door to front panel and pair of pivotal brackets for connecting pivotal member with one of opposite sides of window provided on front panel. Drying machine has preliminary assembling unit for reliable attachment of pivotal bracket to front panel. Preliminary assembling unit has retaining openings and positioning opening provided in pivotal bracket, and retaining protrusions and positioning protrusion extending from front panel. Retaining protrusions are gripped by retaining openings so that positioning protrusion is located in positioning opening. Pivotal bracket is thus fastened in predetermined position on front panel. In such state, openings for screw provided in pivotal member on front panel and pivotal bracket are aligned with one another to thereby allow pivotal member to be connected by means of screws with pivotal bracket.

EFFECT: increased efficiency and enhanced reliability in operation.

12 cl, 5 dwg

FIELD: drying technique.

SUBSTANCE: locking unit is positioned in front panel of drying machine, on door of which machine hook is located, said hook being adapted for engagement with locking unit and disengagement therefrom. Locking unit has lock main body equipped with protrusions and retaining openings in its opposite sides, and lock cover having openings for accommodation of protrusions, and retaining openings provided at cover opposite sides. Protrusions are formed in active part protruding from carrier part of lock main body, and retaining openings are formed in carrier part, immediately under protrusions. Openings for accommodation of protrusions are provided in portion protruding from edge of cover lock planar portion, and retaining protrusions are formed at ends of lock cover protruding portion. On introducing of lock cover into main body of lock, protrusions become embraced with openings for accommodation of protrusions, and retaining protrusions are introduced into retaining openings. Such construction allows lock cover to be assembled with lock main body for one operation.

EFFECT: increased efficiency, simplified construction and reduced time for assembling of lock unit.

9 cl, 5 dwg

FIELD: mechanical engineering.

SUBSTANCE: washing machine has drum and condensing channel communicating with drum. Condensing channel has air inlet member, condensing device and air outlet member, said parts of condensing channel being connected in series. There is condensed water jet feeding member within condensing device. Guiding member provided within condensing device is designed for blocking of return flow. Condensing device has flow passage width greater than width of air inlet member and air outlet member. There is return flow blocking protrusion within condensing channel, said protrusion being designed for preventing return flow of condensed water produced within edge portion of guiding member for blocking of return flow under the action of inner circulating air.

EFFECT: increased efficiency owing to providing blocking of return flow.

16 cl, 7 dwg

FIELD: mechanics.

SUBSTANCE: wash-and-dry machine comprises drum receiving underlinen, tank housing the said drum, casing accommodating the said tank and other components, cable harness to voltage from the mains to appropriate components, and suspension spring. The said spring is arranged nearby the said cable harness to damp the gravity and dynamic motion forces acting on the tank. The proposed machine additionally incorporates cable harness casing and its holder.

EFFECT: suspension spring is fastened so that to prevent contact between cable harness and said suspension spring.

6 cl, 7 dwg

FIELD: individual supplies.

SUBSTANCE: washing or drying machine includes main case and control device including input unit, main control unit performing operations of definition and control depending on the signals coming from input unit, and display for controlled machine state depending on the signals from main control unit. Machine includes upper frame attached to top end part of front case surface, lower frame attached to bottom end part of front case surface, and horizontal ornamental plate attached to top end part of upper frame. Control panel is attached so as to be optionally removed together with ornamental plate of top end part of front case surface or with lower frame of bottom end part of front case surface. Covering panel is attached so as to be optionally removed together with ornamental plate of top end part of front case surface or with lower frame of bottom end part of front case surface opposite to control panel.

EFFECT: operational convenience at any height position of washing or drying machine.

8 cl, 17 dwg

FIELD: textile industry.

SUBSTANCE: set of two laundry machines consists of a washing machine and a drying machine. The latter has the drum for retaining the laundry therein, a pressure fan supplying the air to the drum and a pressure device for heating the air supplied to the drum. The set consists of a common hose connected to at least one water supply source, the hose supplying water to the drying machine, which connects the common hose to the drying machine, and the hose supplying water to the washing machine, which connects the common hose to the washing machine. The drying machine consists of a drum, a pressure fan supplying the air to the drum and the device for heating the air supplied to the drum. The machine includes a water supplying hose connecting the drying machine to the common hose which is connected to water supply source and to the washing machine. The drying machine has a steam generator and the hose supplying water to the drying machine and connected to the steam generator.

EFFECT: possibility of preventing folds of the dried clothes or eliminating clothes folds.

10 cl, 7 dwg

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