TECHNICAL FIELD

The present invention relates to a drying system comprising a drying drum for providing realization of the drying process during production of textile products.

PRIOR ART

Textile products are subjected to various finishing processes during the production process, and the humidity received in their bodies during these processes is removed by means of drying. Drying of textile products is separated into two groups depending on dehumidification on the product, namely, pre-drying made by means of mechanical methods, and principle drying realized by means of heat transfer without losing hygroscopic (natural) humidity which exists on the product. However, drying of the product by means of heat energy (principle drying) may damage the structure of the product during the drying process and may lead to decrease of the economic value of the product.

One of the methods used in drying textile products is drying by means of drying machines which have drum. Drying machines, which have drum, are systems which heat the air received from outside and which discharge said air in a single cycle (open cycle) and whose energy efficiency is low.

Since the decreases in energy sources shall lead to increase of energy costs, energy has to be used in an efficient manner in all phases as from production of energy till consumption of energy. At this point, energy saving is substantially important. While drying systems are being designed, parameters like the energy efficiency of the system and the physical characteristics of both humid and dried material, humidity percent included at the beginning of the drying process, the amount of humidity to be removed, drying temperature and drying speed are important. Briefly, the basic characteristic, which must be taken into attention during the drying process, is to reach the maximum drying speed by minimum energy consumption in obtaining the product which has the desired characteristics.

In the related technical field, arrangements and studies are made for decreasing costs of drying processes and for increasing performances of the used devices. In the application GB2092729A which is one of the studies which exist in the literature, a device which provides drying of various products is described. Said device comprises channels, heat exchanger, heat pump, condenser, exchanger for realizing the drying process. Said device provides taking of the air by means of channels and giving the heated air back to the medium. The occurring excessive heat is used in various applications like area heating, water heating, etc.

As a result, because of the abovementioned problems, an improvement is required in the related technical field.

BRIEF DESCRIPTION OF THE INVENTION

The present invention relates to a drying system, for eliminating the abovementioned disadvantages and for bringing new advantages to the related technical field.

An object of the present invention is to provide a drying system where the drying performance is increased in the drying drum used in drying textile products.

Another object of the present invention is to provide a drying system which provides energy saving in the drying drum used in drying textile products.

Another object of the present invention is to provide a drying system where the drying duration is shortened in the drying drum used in drying textile products.

BRIEF DESCRIPTION OF THE FIGURES

In Figure 1 , a representative view of the first operation scenario of a drying system is given.

In Figure 2, a representative view of the second operation scenario of a drying system is given.

In Figure 3, a representative view of the third operation scenario of a drying system is given. DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the subject matter drying system (100) is explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.

The present invention relates to a drying system (100) comprising a drying drum (10) for providing realization of the drying process during production of textile products.

With reference to Figure 1 , said drying drum (10) comprises a drum input opening (16) provided in a manner allowing air input. There is at least one first temperature sensor (11) placed in the vicinity of said drum input opening (16). Said first temperature sensor (11) provides measuring of the temperature of air which enters the drying drum (10). There is a first humidity sensor (13) placed in the vicinity of the drum input opening (16). Said first humidity sensor (13) provides measurement of the relative humidity of the air which enters the drying drum (10). The drying drum (10) comprises a drum output opening (17) for providing output of the dried air through the drying drum (10) by applying drying process to the textile process. There is a second temperature sensor for providing measurement of the dried air which is output from said drum output opening (17). Said second temperature sensor is placed in the vicinity of the drum output opening (17). There is a second humidity sensor for providing measurement of the relative humidity of the dried air which is output from the drum output opening (17). Said second humidity sensor is placed in the vicinity of the drum output opening (17).

With reference to Figure 2, the drying system (100) comprises an air mixing unit (18) which arranges the input/output of air which enters the drying drum (10) and which exits the drying drum (10). Said air mixing unit (18) comprises an air input damper (181 ) provided in a manner allowing input of clean air to the drying drum (10) in a proportional manner. The air mixing unit (18) comprises an air output damper (182) provided in a manner allowing output of the dried air from the drying drum (10) in a proportional manner. The air mixing unit (18) comprises a mixing damper (183) for providing mixing of the air, coming through the drum output opening (17), with the clean air taken from the air input damper (181 ) in a proportional manner.

With reference to Figure 2, the drying system (100) comprises a recovering unit (19) connected to the air mixing unit (18) for providing taking of the clean air entering the drying drum (10) and for providing transfer of the dried air, exiting the drying drum (10), to the medium. The recovering unit (19) is provided to realize heat transfer of the dried air and the clean air. The recovering unit (19) is placed in a manner connected with air input damper

(181 ). The recovering unit (19) is placed in a manner connected with air output damper

(182). The recovering unit (19) comprises an air input opening (191) for providing taking of clean air from the medium. The recovering unit (19) comprises an air output opening (192) for providing release of the dried air to the medium. The recovering unit (19) is embodied to provide realization of heat exchange between the clean air taken from the air input opening (191 ) and the dried air coming from the air output damper (182). This condition provides reduction of energy consumption. The clean air taken from the air input opening (191) is transferred to the air mixing unit (18) through the input damper (181). The dried air transferred from the air mixing unit (18) to the air output damper (182) is released to the medium through the air output opening (192). The recovering unit (19) comprises a pressure difference sensor (193) for preventing clogging which may occur due to textile-sourced particles which exist in the dried air transferred from the air output damper (182) to the air output opening (192), and for providing realization of maintenance. Said pressure difference sensor (193) provides controlling of operability of the system as a result of clogging of the textile product.

With reference to Figure 3, the drying system (100) comprises at least one drying element (201 ) which includes zeolite minerals completely or at least partially and which provides absorption of the relative humidity existing in the circulation air of the drying drum (10) and which provides contribution to the heating process by providing adsorption energy. Said drying element (201) is placed in a cassette (20). There is a drying air input damper (202) for providing transfer of the clean air, taken in the air mixing unit (18), to the drying element (201 ). There is a drying air output damper (203) for providing transferring of the air, dried in the drying element (201 ), to the drum input opening (16). There is an air damper (15) which is opened and closed in a manner allowing transfer of the clean air, coming from the air mixing unit (18), to the drying element (201) or to the drum input opening (16). Said air damper (15) functions as a door for providing transfer of the clean air, coming from the air mixing unit (18), to the drying element (201 ) or to the drum input opening (16).

As shown in Figure 1 , 2 and 3, the drying system (100) is operated in a manner respectively actuating a first operation scenario (101), a second operation scenario (102) and a third operation scenario (103) for drying a textile product. Thus, the drying duration and the energy consumption are reduced. Moreover, the desiccant bed size used in closed cycled desiccant systems is reduced. As shown in Figure 1 , the following process steps are realized in said first operation scenario (101 ) for the operation of the drying system (100). First of all, the drying drum (10) is operated for drying of a textile product in the drying drum (10). By operating the drying drum (10), the air input damper (181), the air output damper (182) and the mixing damper (183) existing in the air mixing unit (18) are opened. Moreover, the drying air input damper (202) and the drying air output damper (203) existing at the inlet of the drying element (201) are closed. The clean air, taken from the input damper, is allowed to enter the drying drum (10) through the drum air input opening (191) as the air damper (15) is brought to the open position. The clean air, taken through the drum input opening (16), is transferred to the air mixing unit (18) through the drum output opening (17) of the drying drum (10). The air, which passes through the mixing damper (183), is transferred again to the air damper (15). Closed cycle operation provides reduction of the energy consumption and duration needed for reaching of the inner temperature of the drying drum (10) to the continuous regime conditions at the beginning of the drying.

As shown in Figure 2, the following process steps are realized in said second operation scenario (102) for the operation of the drying system (100). After realization of the first process steps, the second process steps are realized. The air input damper (181), the air output damper (182) and the mixing damper (183) existing at the air mixing unit (18) are kept open. Moreover, the drying air input damper and the drying air output damper existing at the inlet of the drying element (201) are kept closed. Clean air is taken through the air input opening (191). The dried air, existing in the air mixing unit (18), is taken to the recovering unit (19) through the output damper in a proportional manner. Heat transfer is realized between the dried air coming from the output damper in the recovering unit (19) and the clean air taken through the air input opening (191). The dried air is released to the medium through the air output opening (192). The clean air, taken through the air input opening (191), is transferred from the input damper to the air mixing unit (18) in a proportional manner. The dried air, coming from the mixing damper (183) in a proportional manner, and the clean air, taken through the air input opening (191), are mixed and are transferred to the air damper (15). In the second operation scenario (102), the proportional clean air and the proportional dried air are mixed in the air mixing unit (18), and heat exchange is provided between the clean air taken from the medium and the dried air to be released to the medium in the recovering unit (19). This condition provides heat recovery in the drying system (100) and provides reduction of energy consumption.

As shown in Figure 3, the following process steps are realized in said third operation scenario (103) for the operation of the drying system (100). After realization of the second process steps, the third process steps are realized. The output damper, the input damper and the mixing damper (183) existing at the air mixing unit (18) are opened. The drying air input damper and the drying air output damper existing at the inlet of the drying element

(201 ) are opened. The air damper (15) is closed. Clean air and dried air mixture mixed at the air mixing unit (18) is transferred to the cassette (20) through the drying air input damper

(202). The mixture air whose relative humidity is reduced and exiting the cassette (20) is transferred from the drying air output damper (203) to the drum input opening (16). Thus, the drying load, which has been reduced at the end of the second operation scenario, is kept in the drying element (201) by means of adsorption. This condition provides reduction of the relative humidity of the drying air. Moreover, operation duration of the drying system (100) is reduced. Moreover, consumption of drying energy is reduced thanks to the heat energy which occurs as a result of adsorption.

The protection scope of the present invention is set forth in the annexed claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention.

REFERENCE NUMBERS

100 Drying system

10 Drying drum

1 1 First temperature sensor

12 Second temperature sensor

13 First humidity sensor

14 Second humidity sensor

15 Air damper

16 Drum input opening

17 Drum output opening

18 Air mixing unit

181 Air input damper

182 Air output damper

183 Mixing damper

19 Recovering unit

191 Air input opening

192 Air output opening

193 Pressure difference sensor

20 Cassette

201 Drying element

202 Drying air input damper

203 Drying air output damper

101 First operation scenario

102 Second operation scenario

103 Third operation scenario