Household drying machine for linen

FIELD: textiles, paper.

SUBSTANCE: household drying machine (1) for linen comprises an outer housing (2), a container (3) located in it for linen to be dried, and a heater (7). The heater (7) comprises a pipeline (8) of air recirculation connected from both ends to the container (3) for linen, a ventilation means (9) providing an airflow (f) in the recirculation pipeline (8) and through the container (3) for linen, and also the first heat pump unit (10) made with the ability to cool quickly the flow (t) coming from the container (3) for linen of the air dryer for condensation of excess moisture in the said airflow (f) and the subsequent rapid heating of the airflow (f) returning to the container (3) for linen. Moreover, the heater (7) comprises at least one second heat pump unit (15 made with the ability to cool quickly the airflow (f) coming from the container (3) for linen for condensation of excess moisture and subsequent rapid heating of the air flow (f) returning to the container (3) for linen.

EFFECT: ensuring the circulation of hot air flow in the said container (3) for linen.

33 cl, 2 dwg

 

The invention relates to a household tumble dryer for linen, in particular, to a machine with a rotating drum, which is described hereinafter only as an example.

Known drying machine with a rotating drum usually contain external enclosure, made essentially in the form of a parallelepiped; a cylindrical drum for placement subject to drying, mounted in the housing for rotation around a horizontal longitudinal axis and located directly opposite the openings for loading and unloading of linen, made in the front side of the housing; a door pivotally mounted on the front side of the housing can be rotated from closed to open position and back to close the hole in the front side of the housing and sealing the housing and the drum; and a drive for the rotation of the drum.

Drying machine for clothes with a rotating drum of the above type also contain a heater closed loop, providing the inside of the rotating drum circulation of hot air with low moisture content, which passes through the rotating drum and the clothes inside the dryer for fast drying clothes.

In some recently appeared on the market drying machines for Laundry with a rotating drum heater with a closed contour contains the it pipeline recirculation connected the two ends of the rotary drum from the opposite side. Along the recirculation pipe is electric centrifugal fan to create the inside of the pipeline of the air flow passing through the rotating drum. Also has a heat pump unit, two heat exchangers which are located one after another along the pipeline and air circulation. The first heat exchanger air/refrigerant provides rapid cooling coming from the rotating drum air for condensation of excess moisture from the air stream and the second heat exchanger air/refrigerant ensures fast heating of the air flowing from the first heat exchanger and is directed back into the rotating drum, resulting in air flow, again falling into the rotating drum, is quickly heated to a temperature greater than or equal to the temperature of the air leaving the rotating drum.

In particular, the heat pump unit heater typically contains:

piston compressor, which compresses are in the gaseous state refrigerant, so that the pressure and temperature of the refrigerant at the outlet of the compressor are much higher than the input;

the first heat exchanger air/refrigerant, commonly called the condenser,through which simultaneously are coming out of the compressor, the refrigerant and the air, included in the rotating drum, and the design of this heat exchanger are made so that the refrigerant gives up heat to the air incoming into the rotating drum, and the thus condenses and becomes a liquid;

the second heat exchanger air/refrigerant, commonly called the evaporator, through which are simultaneously supplied to the compressor, the refrigerant in and out of the rotating drum the air, and the design of this heat exchanger are made so that the refrigerant absorbs heat from the air exiting the rotating drum, causing the condensation of excess moisture from the air stream, and he completely returned to a gaseous state;

- a means of throttling the liquid refrigerant, providing rapid expansion of emerging from the condenser of the refrigerant in the evaporator, resulting in pressure and temperature entering the evaporator of the refrigerant becomes significantly lower pressure and temperature of the refrigerant at the outlet of the condenser, thereby returning the refrigerant back into a gaseous state, thus completing a closed thermodynamic cycle and completing the work opposite the working piston compressor that compresses the refrigerant.

Obviously, the evaporator and condenser heat pump units are located along the length of the recirculation pipe who is ear so the evaporator provides rapid cooling exiting the rotating drum air for condensation of excess moisture, and the capacitor provides rapid heating of the air leaving the evaporator and directed back into the rotating drum, resulting in part of the dryer the air is rapidly heated to a temperature greater than or equal to the temperature, which had the same air at the outlet of the drum.

Unfortunately, despite the fact that this type drying machine with a rotating drum has a high efficiency, limited operational flexibility heat pump unit is a target of frequent criticism from end users. In practice, due to the use of single-speed reciprocating compressor constant performance, this type of drying machine with a rotating drum is quite noisy and can perform only the type of drying cycle, which is suitable for standard service, but can cause irreversible damage to sensitive service. In fact, irreversible damage to this type of service occur during drying using hot air with a temperature above 50°C.

The present invention is the creation of a drying machine with a rotating drum design which will eliminate the above-mentioned fake is of faultless.

In accordance with the present invention is designed household drying machine, described in paragraph 1 of the claims, and preferably, though not necessarily, in any claim directly or indirectly dependent on item 1.

Variant implementation of the present invention are given below by way of example with reference to the drawings.

1 schematically shows a household clothes dryer (some parts are conventionally not shown) according to the invention, a view in section;

figure 2 is an embodiment of a drying machine, depicted in figure 1.

As shown in figure 1, household drying machine, the overall position 1 contains the outer casing 2, preferably, but not necessarily, made in the form of a parallelepiped; installed with the possibility of rotation of the rotary drum 3 for the accommodation to be drying, preferably, but not necessarily, having a cylindrical shape and located directly opposite made in the front side of the housing 2 holes 2A for loading and unloading, as well as the 4 door, hinge mounted on the front side of the housing 2 can be rotated from closed to open position and back to close the holes 2A and sealing the rotating drum 3.

In the shown example, the rotating drum 3. the false case 2 horizontally on multiple horizontal support rollers 5, located in the housing 2 to provide free rotation of the rotating drum 3 around its longitudinal axis L.

Case 2, the rotating drum 3, door 4 and the supporting rollers 5 are known components in the art, and therefore their detailed description is omitted.

As shown in figure 1, the drying machine 1 also includes an actuator 6 to bring the team into rotation of the rotating drum 3 around its longitudinal axis L within the housing 2; and a heater 7 with closed circuit, located inside the housing 2 and is designed to ensure the passage of hot air with low humidity through the rotary drum 3 for fast drying of linen.

In particular, the heater 7 provides a gradual pulling air from the rotating drum 3, the removal of excess moisture from the air, heating the dried air to a predetermined temperature, usually higher than the temperature at the outlet of the rotating drum 3, and the supply of heated dry air back into the rotating drum 3, where it passes through the inside of the drum underwear for his quick drying.

In other words, the heater 7 provides continuous dehumidification and heating of the air passing through the drum 3, to provide a fast drying inside not what about the linen, and mainly contains:

pipe 8 recirculated air mode, connected the two ends of the rotary drum 3 from the opposite side;

- electric centrifugal fan 9 or the circulation pump of a different type, located in the recirculation line 8 for a flow f of air that comes into the rotating drum 3 and passes through lingerie, located inside the drum 3;

- heat pump unit 10, is made with quick cooling exiting the rotating drum 3 flow f of air for condensation of the contained excessive moisture and subsequent rapid heating of returning into the rotating drum 3 of the air flow f to the temperature higher or equal to the temperature of the air leaving the rotating drum.

In the example shown, the input end of the recirculation pipe 8 is embedded in the door 4 and is located opposite the front holes of the rotating drum 3; end wall 3a of the rotating drum 3 is perforated or at least permeable to air and allows air to enter the drum 3; and the output end of the recirculation pipe 8 is hermetically connected directly with the front wall 3a of the rotating drum 3.

As for electric centrifugal Venti is atora 9, its design enables the creation of flow f of air along the recirculation line 8 from its input end, i.e. from the door 4, to its outlet end, i.e. to the perforated end wall 3a of the rotating drum 3.

As shown in figure 1, the heat pump unit 10 operates as a standard heat pump that can transfer heat from one fluid to another through the use of intermediate gaseous refrigerant operating in a closed thermodynamic cycle. Thermodynamic laws which are widely known and therefore their detailed description is not given.

Heat pump unit 10 includes:

- electrically driven compressor 11 for compressing refrigerant, which exposes gaseous refrigerant compression (e.g., adiabatic), so that the pressure and the refrigerant temperature at the exit is much higher than the input;

the first heat exchanger 12 type air/refrigerant located in the recirculation pipe 8 is preferably, but not necessarily, at the outlet of the fan 9 and is designed so that the flow f coming out of the rotating drum 3 air and fed into the inlet of the compressor 11, the refrigerant passing through it at the same time, due to which the refrigerant having a lower temperature than the air flow f, absorbs heat from the air n the current f, causing condensation of excess moisture in the air flow f;

the second heat exchanger 13 type air/refrigerant located in the recirculation pipe 8 is preferably, but not necessarily, at the outlet of the heat exchanger 12 and shaped so that it is directed into the rotating drum 3 air flow f and the refrigerant from the outlet of the compressor 11 passes through it simultaneously, thereby the refrigerant having a higher temperature gives off heat to the air flow f, rapidly heating it to a temperature exceeding the temperature leaving the heat exchanger 12 of the air flow f and preferably, but not necessarily, greater than the temperature of the air leaving the revolving drum 3;

- throttle valve or similar device 14 expansion of the refrigerant, which provides a rapid expansion of the refrigerant flowing from the second heat exchanger 13 in the first heat exchanger 12, where the pressure and temperature entering the heat exchanger 12 refrigerant substantially lower pressure and temperature of the refrigerant leaving the heat exchanger 13, thereby completing a closed thermodynamic cycle with the performance of work, the opposite operation of the compressor 11, providing a rapid compression of the refrigerant.

In addition, the heat pump unit 10 contains several relevant connection is sustained fashion tubes, connecting the compressor 11, the heat exchanger 12, the heat exchanger 13 and the device 14 expansion of the refrigerant with the formation of a closed loop, allowing the refrigerant emerging from the compressor 11, sequentially flow through the heat exchanger 13, the device 14 expansion of the refrigerant and the heat exchanger 12 before returning into the inlet of the compressor 11.

In contrast to the known drying machines for Laundry heater 7 also contains at least a second heat pump unit 15, which together with the heat pump unit 10 instead of, or capable of rapidly cooling exiting the rotating drum 3 air flow f to condense excess moisture and subsequent rapid heating of this air flow f coming into the rotating drum 3, so coming into the rotating drum 3, the air flow is heated rapidly to a temperature higher or equal to the air temperature at the outlet of the rotating drum.

As shown in figure 1, the heat pump unit 15, similar to the heat pump unit 10 contains:

- electrically driven compressor 16 to compress the refrigerant, which puts gaseous refrigerant compression (e.g., adiabatic), so that the pressure and the refrigerant temperature at the exit is much higher than the input;

the first heat exchanger 17 type d is x/refrigerant located in the recirculation line 8 before the heat exchanger 12 and preferably, but not necessarily, the centrifugal fan 9 and is designed in such a way that exiting the rotating drum 3 air flow f flowing into the inlet of the compressor 16, the refrigerant passing through it at the same time, due to which the refrigerant having a lower temperature than the air flow f, absorbs heat from the air flow f, causing the condensation of excess moisture in the air flow f;

the second heat exchanger 18 of the air/refrigerant located in the recirculation line 8 for the heat exchanger 17 and just before the heat exchanger 13 and is designed in such a way that is directed into the rotating drum 3 air flow f and the refrigerant from the outlet of the compressor 16 pass through it simultaneously, thereby the refrigerant having a higher temperature gives off heat to the air flow f, quickly heating up the air flow f to the temperature exceeding the temperature of the air leaving the heat exchanger 12 and 17, and preferably, but not necessarily, to a temperature greater than or equal to the temperature of the air leaving revolving drum 3;

- throttle valve or similar device 19 expansion of the refrigerant, which provides a rapid expansion of cladag the NTA, the current from the second heat exchanger 18 in the first heat exchanger 17, where the pressure and temperature entering the heat exchanger 17 of the refrigerant substantially lower pressure and temperature of the refrigerant leaving the heat exchanger 18, completing the closed thermodynamic cycle with the performance of work, the opposite operation of the compressor 16, providing a rapid compression of the refrigerant.

Heat pump unit 15, similarly to the heat pump unit 10 contains several relevant connecting tubes connecting the compressor 16, the heat exchanger 17, the heat exchanger 18 and the device 19 expansion of the refrigerant with the formation of a closed loop, allowing the refrigerant emerging from the compressor 16, sequentially passing through the heat exchanger 18, the device 19 expansion of the refrigerant and the heat exchanger 17 before returning into the inlet of the compressor 16.

Additionally it should be noted that the performance of the compressor 11 can be equal to, greater than or less than the performance of the compressor 16, allowing the heat pump unit 10 may have the same, more or less heating and cooling capacity in comparison with the heat pump unit 15.

In particular, in this example, the compressor 11 is twice the performance of the compress is ora 16, thanks to the heat pump unit 10 has two times more heating and cooling capacity than the heat pump unit 15.

In addition, the compressor 11 is preferably, but not necessarily, is a rotary compressor, for example, rotary screw compressor, rotary vane-type compressor or a scroll compressor. Similarly, in the example shown, the compressor 16 is preferably, but not necessarily, also a rotary compressor.

As shown in figure 1, the drying machine 1 for linen contains the Central electronic control unit 20, which disables and enables the compressors 11 and 16 independently of one another in accordance with the specific user-selected drying cycle for alternating or simultaneous operation of the heat pump units 10 and 15.

General principles of operation of the drying machine 1 is apparent from the above description and do not require further explanation.

The presence of two independent heat pump units has many advantages. By including only small rotary compressor (compressor 16), or only large rotary compressor (compressor 11) or two compressors operation of the heater 7 is carried out at three different power levels, which significantly increases ek is operating flexibility drying machine.

Thus, by means independent of the inclusion of the compressors 11 and 16 of the drying machine 1 may be configured drying characteristics of the heater 7 in accordance with the type of clothing placed in the rotating drum 3.

For example, the heat pump unit 15 can be adjusted so that the temperature of the resulting air flow f dehumidified warm air inlet into the drum 3 was slightly below valid for sverhchuvstvennogo service (i.e. 50°C); whereas the heat pump unit 10 can be adjusted so that in conjunction with the heat pump unit 15 to provide for the establishment of flow f of the drained warm air inlet into the drum 3 with a temperature suitable for normal service (i.e. 70°C).

In addition, when performing a standard drying cycle, the control block 20 can alternately be powered or heat pump unit 10, or heat pump unit 15 in accordance with the actual moisture level of the clothes inside the rotating drum 3, thereby optimizing the power consumption.

Additionally it should be noted that the cost of manufacture of compressors for the refrigerant increases more than in proportion to the capacity of the compressor, the total cost of the compressors 11 and 16 is much lower than the cost of a traditional compression of the refrigerant, about socialnet which is equal to the total performance of the compressors 11 and 16.

And finally, rotary compressors are smaller than piston compressors with the same characteristics, which allows to increase the free space inside the housing 2.

It is obvious that in the construction described above, the drying machine 1 can be modified within the scope of the present invention.

For example, the heat exchanger 18 heat pump unit 15 can be placed in the recirculation line 8 to flow over the heat exchanger 13; the heat exchanger 17 can be placed in the recirculation line 8 on stream before the heat exchanger 12.

As shown in figure 2, in another embodiment, the heater 7, the heat exchanger 18 heat pump unit 15 can be placed in the recirculation line 8 to flow over the heat exchanger 13, and the heat exchanger 17 is between the heat exchangers 12 and 13.

In this case, the heat exchanger 17 heat pump unit 15 can be at least partially embedded in the heat exchanger 13 heat pump unit 10, and the design of the resulting heat exchanger air/refrigerant/refrigerant can provide heat transfer from the refrigerant to the heat pump unit 10 to the refrigerant heat pump unit 15 (i.e., not only the air flow f, which is directed into the rotating drum 3), greatly increasing the intensity of the PR is the process of heat transfer.

In fact, in this embodiment of the invention the heat pump unit 10 can operate with a higher pressure refrigerant on the discharge side in a closed thermodynamic cycle and heat pump unit 15 can operate with a higher pressure refrigerant in the area of low pressure closed thermodynamic cycle, thereby significantly reducing the energy consumption of the compressors 11 and 16.

This increase the heat transfer rate leads to an unexpectedly significant increase of the overall energy efficiency of the drying machine and a significant reduction in energy consumption.

Moreover, as is well known, a closed thermodynamic cycle, conducted heat pump unit, by its very nature is unbalanced from the point of view of heat dissipation, i.e. the amount of heat dissipated to the outside in the high temperature heat exchanger is always greater than the amount of heat absorbed from the outside in the low-temperature heat exchanger. In generators of warm air clothes dryers this imbalance it very difficult to control the temperature of the air flow coming back in a rotary drum dryer. In modern clothes dryer, this problem is solved by supplying the generator of hot air (heater) facilities the major external fan with an electric drive, that cools the front part of the piston compressor for refrigerant, with the aim of dissipating excess heat produced by the heat pump unit.

In the variant shown in figure 2, the heat pump unit 15 can also be used to absorb the excess heat produced by the heat pump unit 10. In this case, the only additional external fan (not shown) may be used to dissipate excess heat generated by the two heat pump units 10 and 15, reducing the overall power consumption of the drying machine 1.

1. Household drying machine (1) for linen, containing the outer casing (2) located in it capacity (3) for placement subject to drying and the heater (7)providing circulation of the stream of hot air inside the specified container (3) linen and includes:
pipe (8) recirculation of air, its two ends connected with the specified container (3) linen;
- ventilation device (9), made with the possibility of creating in the recirculation pipe (8) air flow (f)passing through the container (3) linen;
the first heat pump unit (10), made with quick cooling coming from the container (3) linen air flow (f) for condensation of excess moisture in the specified air is Mr. flow (f) and subsequent rapid heating of the air flow (f), returning to the specified container (3) linen;
characterized in that the heater (7) contains at least one second heat pump unit (15), also made with the possibility of rapid cooling coming from the container (3) linen air flow (f) for condensation of excess moisture in the specified air flow (f) and subsequent rapid heating of the air flow (f)returning the specified container (3) linen.

2. Household drying machine according to claim 1, characterized in that it contains the Central unit (20) controls, is arranged to enable the first (10) and second (15) heat pump units either alternately or simultaneously.

3. Household drying machine according to any one of claims 1 or 2, characterized in that the first heat pump unit (10) comprises means (11) for compressing refrigerant, ensure that the compression of the refrigerant, the pressure and temperature of the refrigerant at the outlet of the means (11) compression of the refrigerant is higher than the pressure and temperature of refrigerant at its input; a first heat exchanger (12) type air/refrigerant located in the recirculation pipe (8) and which provides simultaneous passing of the refrigerant going to the inlet means (11) compression of the refrigerant, and the air flow (f) from the container (3) linen, which allows the refrigerant to collect heat from the air stream (f); the second heat exchanger (13) type air/refrigerant located in the recirculation piping (8) on the stream for a first heat exchanger (12) and providing simultaneous passage through it of the refrigerant from the outlet means (11) compression of the refrigerant and air flow (f), is directed into the container (3) linen, which allows the refrigerant to release heat to the air flow (f); and a device (14) expansion of the refrigerant, which provides a rapid expansion of the refrigerant flowing from the second heat exchanger (13) in the first heat exchanger (12), what pressure and temperature entering the heat exchanger (12) of the refrigerant substantially lower pressure and temperature of the refrigerant leaving the heat exchanger (13).

4. Household drying machine according to any one of claims 1 or 2, characterized in that the second heat pump unit (15) includes means (16) the compression of the refrigerant, ensure that the compression of the refrigerant, the pressure and temperature of the refrigerant at the outlet of the means (16) the compression of the refrigerant is higher than the pressure and temperature of refrigerant at its input; a first heat exchanger (17) the type of the air/refrigerant located in the recirculation pipe (8) and which provides simultaneous passing of the refrigerant going to the inlet means (16) the compression of the refrigerant, and the air flow(f) from the container (3) linen, allowing the refrigerant to collect heat from the air stream (f); a second heat exchanger (18) type air/refrigerant located in the recirculation piping (8) on the stream for a first heat exchanger (17) and to allow simultaneous passage through it of the refrigerant from the outlet means (16) the compression of the refrigerant and air flow (f), is directed into the container (3) linen, which allows the refrigerant to release heat to the air flow (f); and a device (19) expansion of the refrigerant, which provides a rapid expansion of the refrigerant flowing from the second heat exchanger (18) in the first heat exchanger (17), resulting in pressure and temperature entering the first heat exchanger (17) of the refrigerant substantially lower pressure and temperature of the refrigerant leaving the second heat exchanger (18).

5. Household drying machine according to claim 3, characterized in that the second heat pump unit (15) includes means (16) the compression of the refrigerant, ensure that the compression of the refrigerant, the pressure and temperature of the refrigerant at the outlet of the means (16) the compression of the refrigerant is higher than the pressure and temperature of refrigerant at its input; a first heat exchanger (17) the type of the air/refrigerant located in the recirculation pipe (8) and which provides simultaneous passing of the refrigerant going to the volt is the opening means (16) the compression of the refrigerant, and air flow (f) from the container (3) linen, which allows the refrigerant to collect heat from the air stream (f); a second heat exchanger (18) type air/refrigerant located in the recirculation piping (8) on the stream for a first heat exchanger (17) and to allow simultaneous passage through it of the refrigerant from the outlet means (16) the compression of the refrigerant and air flow (f), is directed into the container (3) linen, which allows the refrigerant to release heat to the air flow (f); and a device (19) expansion of the refrigerant, which provides a rapid expansion of the refrigerant flowing from the second heat exchanger (18) in the first heat exchanger (17), resulting in pressure and temperature entering the first heat exchanger (17) of the refrigerant substantially lower pressure and temperature of the refrigerant leaving the second heat exchanger (18).

6. Household drying machine according to claim 3, characterized in that the second heat pump unit (15) includes means (16) the compression of the refrigerant, ensure that the compression of the refrigerant, the pressure and temperature of the refrigerant at the outlet of the means (16) the compression of the refrigerant is higher than the pressure and temperature of refrigerant at its input; a first heat exchanger (17) the type of the air/refrigerant located in the recirculation pipe (8) and providing simultaneous aisle is doing through him refrigerant, going to the inlet means (16) the compression of the refrigerant, and the air flow (f) from the container (3) linen, which allows the refrigerant to collect heat from the air stream (f); a second heat exchanger (18) type air/refrigerant located in the recirculation piping (8) on the stream for a first heat exchanger (17) and to allow simultaneous passage through it of the refrigerant from the outlet means (16) the compression of the refrigerant and air flow (f), is directed into the container (3) linen, which allows the refrigerant to release heat air flow (f); and a device (19) expansion of the refrigerant, which provides a rapid expansion of the refrigerant flowing from the second heat exchanger (18) in the first heat exchanger (17), resulting in pressure and temperature entering the first heat exchanger (17) of the refrigerant substantially lower pressure and temperature of the refrigerant leaving the second heat exchanger (18), and the second heat exchanger (18) of the second heat pump unit (15) is located in the recirculation piping (8) on the flow of the first heat exchanger (12) of the first heat pump unit (10).

7. Household drying machine according to claim 6, characterized in that the first heat exchanger (17) of the second heat pump unit (15) is located in the recirculation pipe (8) between the first (12) and second (13) the heat transfer is the space of the first heat pump unit (10).

8. Household drying machine according to claim 7, characterized in that the first heat exchanger (17) of the second heat pump unit (15)at least partially embedded in the second heat exchanger (13) of the first heat pump unit (10) with the formation of the heat exchanger (13, 17) type air/refrigerant/coolant, providing the ability to transfer heat from the refrigerant to the first heat pump unit (10) of the second refrigerant heat pump unit (15).

9. Household drying machine according to claim 4, characterized in that the performance of the funds (11) compression of the refrigerant, the first heat pump unit (10) higher productivity means (16) compression of the refrigerant, the second heat pump unit (15).

10. Household drying machine according to any one of pp.5-8, characterized in that the performance of the funds (11) compression of the refrigerant, the first heat pump unit (10) higher productivity means (16) compression of the refrigerant, the second heat pump unit (15).

11. Household drying machine according to any one of pp.5-9, characterized in that the means (11) compression of the refrigerant, the first heat pump unit (10) comprises a rotary compressor.

12. Household drying machine according to claim 3, characterized in that the means (11) compression of the refrigerant, the first heat pump unit (10) comprises a rotary compressor.

13. Household drying machine according to claim 4, characterized in that th is means (11) compression of the refrigerant, the first heat pump unit (10) comprises a rotary compressor.

14. Household drying machine of claim 10, characterized in that the means (11) compression of the refrigerant, the first heat pump unit (10) comprises a rotary compressor.

15. Household drying machine according to claim 4, characterized in that the means (16) compression of the refrigerant, the second heat pump unit (15) includes a rotary compressor.

16. Household drying machine according to any one of pp.5-9, or 12 to 14, characterized in that the means (16) compression of the refrigerant, the second heat pump unit (15) includes a rotary compressor.

17. Household drying machine of claim 10, characterized in that the means (16) compression of the refrigerant, the second heat pump unit (15) includes a rotary compressor.

18. Household drying machine according to claim 11, characterized in that the means (16) compression of the refrigerant, the second heat pump unit (15) includes a rotary compressor.

19. Household drying machine according to any one of claims 1, 2, 5-9, 12-15, 17-18, characterized in that the first heat exchanger (12) of the first heat pump unit (10) and/or the first heat exchanger (17) of the second heat pump unit (15) is/are located in the recirculation piping (8) on the flow for the ventilation device (9).

20. Household drying machine according to claim 3, characterized in that the first heat exchanger (12) of the first heat pump unit (10) and/or the first heat exchanger (17) of the second talancon the th unit (15) is/are located in the recirculation piping (8) on the flow for the ventilation device (9).

21. Household drying machine according to claim 4, characterized in that the first heat exchanger (12) of the first heat pump unit (10) and/or the first heat exchanger (17) of the second heat pump unit (15) is/are located in the recirculation piping (8) on the flow for the ventilation device (9).

22. Household drying machine of claim 10, wherein the first heat exchanger (12) of the first heat pump unit (10) and/or the first heat exchanger (17) of the second heat pump unit (15) is/are located in the recirculation piping (8) on the flow for the ventilation device (9).

23. Household drying machine according to claim 11, characterized in that the first heat exchanger (12) of the first heat pump unit (10) and/or the first heat exchanger (17) of the second heat pump unit (15) is/are located in the recirculation piping (8) on the flow for the ventilation device (9).

24. Household drying machine according to item 16, characterized in that the first heat exchanger (12) of the first heat pump unit (10) and/or the first heat exchanger (17) of the second heat pump unit (15) is/are located in the recirculation piping (8) on the flow for the ventilation device (9).

25. Household drying machine according to any one of claims 1, 2, 5-9, 12-15, 17 or 18, 20-24, characterized in that the container (3) linen made in the form, su is estu, a cylindrical drum (3)mounted for axial rotation within the housing (2).

26. Household drying machine according to claim 3, characterized in that the container (3) linen made in the form of, essentially, of a cylindrical drum (3)mounted for axial rotation within the housing (2).

27. Household drying machine according to claim 4, characterized in that the container (3) linen made in the form of, essentially, of a cylindrical drum (3)mounted for axial rotation within the housing (2).

28. Household drying machine of claim 10, characterized in that the container (3) linen made in the form of, essentially, of a cylindrical drum (3)mounted for axial rotation within the housing (2).

29. Household drying machine according to claim 11, characterized in that the container (3) linen made in the form of, essentially, of a cylindrical drum (3)mounted for axial rotation within the housing (2).

30. Household drying machine according to item 16, characterized in that the container (3) linen made in the form of, essentially, of a cylindrical drum (3)mounted for axial rotation within the housing (2).

31. Household drying machine according to claim 19, characterized in that the container (3) linen made in the form of, essentially, of a cylindrical drum (3)mounted for axial rotations the inside of the housing (2).

32. Household drying machine A.25, characterized in that it contains the actuator (6) rotation command specified drum (3) around its longitudinal axis (L).

33. Household drying machine according to any one of p-31, characterized in that it contains the actuator (6) rotation command specified drum (3) around its longitudinal axis (L).



 

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Dryer for laundry // 2466229

FIELD: textiles and paper.

SUBSTANCE: machine for drying laundry comprising a rotating drum (2) made with the ability to accommodate objects (3) of laundry to be dried, one or more means (4) of lifting laundry, located on the inner circumferential surface (5) of the drum (2), and an electrical circuit for determining the electrical resistivity and/or conductivity of laundry placed into the rotating drum (2), with each means (4) of lifting laundry comprises at least one first electrode (6) and at least one second electrode (7), electrically isolated from each other and made with the ability to contact with the laundry, and the first electrode (6) and the second electrode (7) are electrically connected, respectively, to the first conductive contact element (8) and the second conductive contact element (9) electrically isolated from each other and located on the outer circumferential surface (10) of the drum (2). The first conductive contact element (8) and the second conductive contact element (9) are in a constant galvanical connection during the drum (2) rotation respectively, the first sliding contact (11) and the second sliding contact (12) made with the ability to slide on the first conductive contact element (8) and the second conductive contact element (9), and both sliding contacts (11, 12) are electrically connected to the control unit (13) for measuring the electrical parameter depending on the residual moisture content in the dried laundry, which connects the first and second electrodes (6), (7). Each means (4) of lifting laundry comprises a first metal part that serves as the first electrode (6), and a second metal part that serves as the second electrode (7). These parts are located on the inner circumferential surface (5) of the drum (2) and are electrically insulated from each other by an insulating spacing element (18), and each means (4) of lifting laundry comprises two metal halves separated from each other by an insulating spacing element (18).

EFFECT: machine for drying laundry enables to define the electrical conductivity or electrical resistivity of laundry processed inside the rotating drum, even when the inner surface of the drum being in contact with the laundry, is made of electrically non-conductive material.

8 cl, 4 dwg

Dryer for linen // 2466228

FIELD: textiles and paper.

SUBSTANCE: dryer for linen comprises a chamber (4) for clothes to be dried, an air circuit (5) for circulation of the drying air through the chamber (4) and a dewatering unit (9) to reduce the moisture content in the wet stream of air coming out of the chamber (4). According to the invention the dewatering device (9) comprises a unit (10, 210) of ionisation, designed for electric charge of water dispersed in the air stream, and means (17, 18) of release of water.

EFFECT: improvement of air dewatering system.

1 cl, 3 dwg

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

FIELD: textiles, paper.

SUBSTANCE: microwave drying machine (1) for linen comprises a housing (2), a drying chamber (4) located inside it with a front opening (6), a door (7) pivotally mounted on the housing (2) to prevent access to the drying chamber (4), and a source (15) of microwave energy to direct microwave energy into the drying chamber (4). The source (15) of microwave energy is attached to the front panel (16), which is located on the housing (2) and has a central opening (17), coaxial to the front opening (6) of the drying chamber (4).

EFFECT: increased operational reliability.

25 cl, 4 dwg

Drum dryer // 2452803

FIELD: textiles, paper.

SUBSTANCE: drum dryer contains a rotating drum (2) installed inside the outer housing and adapted to receive items for drying. The drum (2) comprises a cylindrical side wall (3), a front flange (11) with a hole for clothes, a rear flange (5), and at least one sound-absorbing coating (8), located on the outer surface of the rear or the front flange of the drum (2) to absorb the sound waves produced by items rotating inside the drum (2) which strike on its wall during the drying process. The sound-absorbing coating (8) comprises a metal sheet (9) and a viscous layer (10) placed between the sheet (9) and the outer surface of the drum (2).

EFFECT: improved drying.

1 cl, 2 dwg

FIELD: textiles, paper.

SUBSTANCE: household dryer (1) for linen comprises an outer box-shaped body (2), within which the rotating drum (3) is set for laundry subject to drying, a generator (7) of hot air for circulation of hot air flow inside the rotating drum (3). The generator (7) of hot air contains a line tube (8) of air recirculation, connected with both ends to the rotating drum (3), and a heat exchanger (10) located along the line tube (8) of recirculation for cooling the air flow (f) coming from the rotating drum (3) and the condensation of excess moisture from the air flow (f). At that the heat exchanger (10) contains a box-shaped casing (12) located along the line tube (8) of recirculation, and a heat-conductive air-guiding matrix (13), set in the box- shaped casing (12) with the possibility of a simple extraction. The air-guiding matrix comprises a means (19) of filtration, made with the possibility of holding floss and/or fiber particles.

EFFECT: increased service reliability.

1 cl, 2 dwg

Linen drum dryer // 2436879

FIELD: textile industry.

SUBSTANCE: linen drum dryer contains a closed drying air circuit (designed so that heated drying air is able to pass through a rotary drum), an air condenser for removal of moisture from hot moisture-saturated drying air coming out of the drum; an open cooling air circuit designed so that to enable circulation through the air condenser. The cooling air flow is taken in from the environment for cooling the said condenser and release of the cooling air flow back into the environment. Additionally the dryer contains units catching and gathering fibres for floss removal from the drying air flow. The closed drying air circuit includes an air channel with an inlet hole fluidly coupled with the drum and an outlet hole fluidly coupled with the air condenser and an air flow deviation surface for deviating air passing through the inlet hole and for the air delivery in the direction of the outlet hole. The units catching and gathering fibres contain a water delivery device adapted for water delivery onto the upper part of the air flow deviation surface with formation of a water film or curtain directed downwards along the said surface so that the drying air flow runs over the water curtain and moves along it ensuring the possibility of floss capture and catching by the water curtain; additionally the units contain a drain device designed so that to enable gathering water containing floss on the lower part of the air flow deviation surface.

EFFECT: easy servicing of the dryer.

8 cl, 6 dwg

FIELD: textile, paper.

SUBSTANCE: air conditioning device includes body of device, comprising suction inlet channel and suction outlet channel for air circulation. Body of device comprises evaporator, capacitor and compressor. Evaporator and compressor are arranged somewhere along air channel, passing from suction inlet channel to suction outlet channel, for dehydration and drying of circulating air. Compressor provides for circulation of coolant via evaporator and capacitor. Device body is formed from multiple separate sections, between which a sealing element is installed continuously between marked lines formed on external surface of device body, to provide for air impermeability of device vessel. Device body includes water reservoir, comprising drain device on its external wall. Drain device drains still water when opened by still water and prevents suction of external air.

EFFECT: creation of device for air conditioning, which does not have a sealing structure between receiving compartment of compressor and its air channel.

9 cl, 15 dwg

FIELD: textile, paper.

SUBSTANCE: household washing machine for dry cleaning comprises a tank, where a perforated drum with clothes rotates, and a closed circuit, which makes it possible for a dissolvent, such as decamethylcyclopentasiloxane, to circulate in an air flow via the drum. The circuit comprises a capacitor, a heater, a fan and at least one has sensor to detect concentration of the dissolvent in air and to transfer according data to the electronic device (38) to control this machine. The gas sensor is an infrared device, which is arranged outside of a closed air circuit and is connected to it so that the gaseous dissolvent may circulate along the optical path, absorbing energy of infrared radiation.

EFFECT: safety of a household washing machine by control of the gaseous dissolvent concentration and timely informing a user, and solving the issue of the gas concentration sensor contamination.

8 cl, 3 dwg

Linen drum dryer // 2436879

FIELD: textile industry.

SUBSTANCE: linen drum dryer contains a closed drying air circuit (designed so that heated drying air is able to pass through a rotary drum), an air condenser for removal of moisture from hot moisture-saturated drying air coming out of the drum; an open cooling air circuit designed so that to enable circulation through the air condenser. The cooling air flow is taken in from the environment for cooling the said condenser and release of the cooling air flow back into the environment. Additionally the dryer contains units catching and gathering fibres for floss removal from the drying air flow. The closed drying air circuit includes an air channel with an inlet hole fluidly coupled with the drum and an outlet hole fluidly coupled with the air condenser and an air flow deviation surface for deviating air passing through the inlet hole and for the air delivery in the direction of the outlet hole. The units catching and gathering fibres contain a water delivery device adapted for water delivery onto the upper part of the air flow deviation surface with formation of a water film or curtain directed downwards along the said surface so that the drying air flow runs over the water curtain and moves along it ensuring the possibility of floss capture and catching by the water curtain; additionally the units contain a drain device designed so that to enable gathering water containing floss on the lower part of the air flow deviation surface.

EFFECT: easy servicing of the dryer.

8 cl, 6 dwg

FIELD: textiles, paper.

SUBSTANCE: household dryer (1) for linen comprises an outer box-shaped body (2), within which the rotating drum (3) is set for laundry subject to drying, a generator (7) of hot air for circulation of hot air flow inside the rotating drum (3). The generator (7) of hot air contains a line tube (8) of air recirculation, connected with both ends to the rotating drum (3), and a heat exchanger (10) located along the line tube (8) of recirculation for cooling the air flow (f) coming from the rotating drum (3) and the condensation of excess moisture from the air flow (f). At that the heat exchanger (10) contains a box-shaped casing (12) located along the line tube (8) of recirculation, and a heat-conductive air-guiding matrix (13), set in the box- shaped casing (12) with the possibility of a simple extraction. The air-guiding matrix comprises a means (19) of filtration, made with the possibility of holding floss and/or fiber particles.

EFFECT: increased service reliability.

1 cl, 2 dwg

Drum dryer // 2452803

FIELD: textiles, paper.

SUBSTANCE: drum dryer contains a rotating drum (2) installed inside the outer housing and adapted to receive items for drying. The drum (2) comprises a cylindrical side wall (3), a front flange (11) with a hole for clothes, a rear flange (5), and at least one sound-absorbing coating (8), located on the outer surface of the rear or the front flange of the drum (2) to absorb the sound waves produced by items rotating inside the drum (2) which strike on its wall during the drying process. The sound-absorbing coating (8) comprises a metal sheet (9) and a viscous layer (10) placed between the sheet (9) and the outer surface of the drum (2).

EFFECT: improved drying.

1 cl, 2 dwg

FIELD: textiles, paper.

SUBSTANCE: microwave drying machine (1) for linen comprises a housing (2), a drying chamber (4) located inside it with a front opening (6), a door (7) pivotally mounted on the housing (2) to prevent access to the drying chamber (4), and a source (15) of microwave energy to direct microwave energy into the drying chamber (4). The source (15) of microwave energy is attached to the front panel (16), which is located on the housing (2) and has a central opening (17), coaxial to the front opening (6) of the drying chamber (4).

EFFECT: increased operational reliability.

25 cl, 4 dwg

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

Dryer for linen // 2466228

FIELD: textiles and paper.

SUBSTANCE: dryer for linen comprises a chamber (4) for clothes to be dried, an air circuit (5) for circulation of the drying air through the chamber (4) and a dewatering unit (9) to reduce the moisture content in the wet stream of air coming out of the chamber (4). According to the invention the dewatering device (9) comprises a unit (10, 210) of ionisation, designed for electric charge of water dispersed in the air stream, and means (17, 18) of release of water.

EFFECT: improvement of air dewatering system.

1 cl, 3 dwg

Dryer for laundry // 2466229

FIELD: textiles and paper.

SUBSTANCE: machine for drying laundry comprising a rotating drum (2) made with the ability to accommodate objects (3) of laundry to be dried, one or more means (4) of lifting laundry, located on the inner circumferential surface (5) of the drum (2), and an electrical circuit for determining the electrical resistivity and/or conductivity of laundry placed into the rotating drum (2), with each means (4) of lifting laundry comprises at least one first electrode (6) and at least one second electrode (7), electrically isolated from each other and made with the ability to contact with the laundry, and the first electrode (6) and the second electrode (7) are electrically connected, respectively, to the first conductive contact element (8) and the second conductive contact element (9) electrically isolated from each other and located on the outer circumferential surface (10) of the drum (2). The first conductive contact element (8) and the second conductive contact element (9) are in a constant galvanical connection during the drum (2) rotation respectively, the first sliding contact (11) and the second sliding contact (12) made with the ability to slide on the first conductive contact element (8) and the second conductive contact element (9), and both sliding contacts (11, 12) are electrically connected to the control unit (13) for measuring the electrical parameter depending on the residual moisture content in the dried laundry, which connects the first and second electrodes (6), (7). Each means (4) of lifting laundry comprises a first metal part that serves as the first electrode (6), and a second metal part that serves as the second electrode (7). These parts are located on the inner circumferential surface (5) of the drum (2) and are electrically insulated from each other by an insulating spacing element (18), and each means (4) of lifting laundry comprises two metal halves separated from each other by an insulating spacing element (18).

EFFECT: machine for drying laundry enables to define the electrical conductivity or electrical resistivity of laundry processed inside the rotating drum, even when the inner surface of the drum being in contact with the laundry, is made of electrically non-conductive material.

8 cl, 4 dwg

FIELD: textiles, paper.

SUBSTANCE: laundry is dried in the drum (2) under the influence of air flow evaporating the water contained in the laundry, and the drying cycle includes at least one stage of the closed loop during which the air flow with constant air mass (1, 10) passes several times through the drum (2), and at least one stage of the open loop during which the air flow has the air mass intake from the ambient environment and then discharged into the ambient environment after a single flow through the drum (2), and air is heated in during the stage of the closed loop.

EFFECT: improvement of the method.

20 cl, 14 dwg

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