A drying device for textile fabric

Abstract

The application relates to the technical field of textile fabric drying, in particular to a textile fabric drying device, which comprises a drying box and a waste heat recovery device; according to the scheme, the waste heat recovery plate can collect the originally directly lost heat, preheat the cold water delivered by the water storage tank, the preheated water enters the fixed roller, the heating pipe does not need to start heating from zero, the time for heating to the target temperature can be shortened, the energy consumption of the heating pipe is reduced, the preheated water enters the fixed roller, the rotating roller can reach the required drying temperature more quickly, the waiting time for the fabric to be heated after entering the drying area is reduced, the drying rhythm is accelerated, the temperature fluctuation of the fixed roller is smaller due to the relatively stable preheated water temperature, the fabric can be heated more uniformly, the drying quality is not affected by the sudden change of the temperature, the scheme is especially suitable for the drying scene of the textile fabric which is sensitive to the temperature, the loss of the heating pipe in the high-intensity heating state for a long time is reduced, and the service life of the heating pipe is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of drying textile fabrics, and in particular to a drying apparatus for textile fabrics. Background Technology

[0002] Textile fabrics, also known as knitted fabrics, can be divided into two categories according to their weaving methods: weft-knitted fabrics and warp-knitted fabrics. During the production process, they need to undergo a certain drying and shaping process.

[0003] A utility model patent with Chinese patent authorization announcement number CN222460121U discloses a drying device for textile fabrics, including a drying box and a lifting assembly disposed therein. A support box is provided at one end of the lifting assembly, and a through groove is provided on the support box for the fabric to pass through. A rotating roller is disposed opposite to the fabric in the through groove, and a fixed roller is disposed inside the rotating roller. A partition plate is slidably disposed along the length of the fixed roller. An air pump is disposed outside the support box, and a telescopic air pipe is provided at the output end of the air pump. One end of the telescopic air pipe is located inside the fixed roller. A water storage tank is disposed on the outer wall of the support box, and a water pump is disposed outside the water storage tank. The output end of the water pump communicates with the inside of the fixed roller. A heating tube is disposed inside the fixed roller. Traditionally, when drying textile fabrics of different widths, the heating rods need to be heated as a whole, making it inconvenient to adjust the heating area appropriately according to the width of the textile fabric. This utility model allows personnel to easily adjust the heating and drying area according to the different widths of the fabric.

[0004] The proposed solution has the following problems: The device uses two sets of rotating rollers, with a fixed roller inside each. A partition plate slides inside the fixed roller and is driven by an air pump to limit the area where water enters the fixed roller. A heating element raises the internal water temperature. However, this solution has several issues. For example, thick textile fabrics, due to their thick fiber layers, may experience slow heat penetration and incomplete drying of the inner layers if the heat is only conducted through the hot water inside the fixed roller. Existing devices dry the fabric by conducting heat through the hot water inside the fixed roller, resulting in heat loss. Furthermore, the device heats the water through the heating element inside the fixed roller, and then the rotating roller conducts heat to dry the fabric. During this process, a large amount of residual heat (such as hot air and radiant heat from the chamber) is generated inside the drying chamber due to heat transfer. This heat is directly dissipated into the external environment and cannot be reused. This causes the heating element to continuously consume more energy to maintain the water temperature inside the fixed roller, increasing overall energy costs. It also increases the workload of the heating element, shortening its lifespan and further increasing energy consumption due to repeated heating of low-temperature water.

[0005] Therefore, in order to solve the above problems, this application provides a drying device for textile fabrics. Utility Model Content

[0006] To address the problems of existing drying devices that use hot water in a fixed roller for heat conduction and drying, which result in heat loss and the fact that the device heats the water through a heating tube in the fixed roller and then conducts heat through the rotating roller to dry the fabric, while generating a large amount of residual heat (such as hot air and radiant heat from the chamber) during the drying process, which is directly dissipated into the external environment and cannot be reused, this application provides a drying device for textile fabrics.

[0007] This application provides a drying device for textile fabrics, including a drying chamber and a waste heat recovery device. A support box is installed inside the drying chamber, and two fixed rollers are fixedly connected inside the support box. A water storage tank is fixedly connected to one side of the support box. The waste heat recovery device includes:

[0008] A waste heat recovery plate is installed at the top of the inner cavity of the drying oven. A sealed flow channel is opened inside the waste heat recovery plate. A second water pump is fixedly connected to one side of the water storage tank. One end of the second water pump is connected to the bottom of one side of the waste heat recovery plate through a water supply pipe. The other end of the second water pump is connected to one end of two fixed rollers through a water inlet pipe. A first water pump is fixedly connected to the top of the water storage tank near the second water pump. One end of the first water pump is connected to one end of the two fixed rollers through a water outlet pipe. The other end of the first water pump is connected to the inside of the water storage tank through a water supply pipe. A third water pump is fixedly connected to the top of the water storage tank. One end of the third water pump is connected to the inside of the water storage tank through a water pumping pipe. The other end of the third water pump is connected to one side of the bottom of the waste heat recovery plate through a water supply pipe.

[0009] The fixed roller is equipped with a dual heating device.

[0010] Preferably, the waste heat recovery plate is made of aluminum alloy.

[0011] Preferably, the surface of the waste heat recovery plate is designed with multiple corrugated grooves.

[0012] Preferably, an observation window is provided on one side of the water storage tank.

[0013] Preferably, the inner cavity of the drying oven is provided with a lifting assembly, which is fixedly connected to one side of the support box.

[0014] Preferably, the support box has a through groove in the middle, and the waste heat recovery plate and the drying box both have through holes, with the two through holes being coaxially arranged with the through groove.

[0015] Preferably, the dual heating device includes:

[0016] Heating tubes are fixedly installed inside one end of each of the two fixed rollers, and rotating rollers are rotatably connected to the outside of each of the two fixed rollers. Mounting grooves are opened through the surfaces of the two rotating rollers, and graphene heating elements that can be controlled independently are installed in the multiple mounting grooves.

[0017] Preferably, a plurality of the graphene heating elements are distributed at equal intervals along a straight line on the outer surface of the roller.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0019] 1. In this utility model, by setting up a waste heat recovery plate, the heat that would otherwise be directly lost can be collected and used to preheat the cold water supplied by the water tank. After the preheated water enters the fixed roller, the heating tube does not need to start heating from zero, which can shorten the time to heat to the target temperature and reduce the energy consumption of the heating tube. Moreover, after the preheated water enters the fixed roller, the roller can reach the required drying temperature more quickly, reducing the waiting time for the fabric to heat up after entering the drying area and speeding up the drying process. Because the preheated water temperature is relatively stable, the temperature fluctuation of the fixed roller is smaller, which can make the fabric heated more evenly and avoid the drying quality being affected by sudden temperature changes. It is especially suitable for drying temperature-sensitive textile fabrics, reducing the wear and tear of the heating tube under long-term high-intensity heating and helping to extend the service life of the heating tube.

[0020] 2. In this invention, a dual heating mode of hot water conduction and graphene direct heating is adopted. The graphene heating element has excellent thermal conductivity and heating uniformity, and can directly act on the fabric surface to quickly raise the surface temperature of the fabric. At the same time, the hot water heat from the fixed roller penetrates into the inner layer from the roller in contact with the fabric. The synergistic effect of the two can accelerate the evaporation of moisture in the inner and outer layers of the fabric, significantly shorten the drying time of thick fabrics, and improve the overall production efficiency. In the dual heating mode, the fabric surface and the side in contact with the roller can obtain uniform heat, reducing the problem of local overheating or insufficient drying caused by a single heating method. It is especially suitable for temperature-sensitive fabrics, reducing the risk of deformation and discoloration of the fabric due to uneven heating. For thin fabrics, only the hot water conduction mode of the heating tube can be used to meet the drying needs using the existing water circulation system. For thick fabrics, the graphene heating element is activated simultaneously for auxiliary heating to achieve on-demand heating. This flexible heating mode can avoid the energy waste caused by single high-intensity heating. Attached Figure Description

[0021] Figure 1 This is a perspective view of an embodiment of this application;

[0022] Figure 2 This is a perspective cross-sectional view of an embodiment of this application;

[0023] Figure 3 This is a perspective cross-sectional view of the support box according to an embodiment of this application;

[0024] Figure 4 This is a perspective exploded view of the rotating roller and the stationary roller in an embodiment of this application;

[0025] Figure 5 This is a perspective view of the waste heat recovery plate in an embodiment of this application.

[0026] Explanation of reference numerals in the attached drawings: 1. Drying oven; 2. Support box; 3. Water storage tank; 4. Observation window; 5. Water supply pipe three; 6. Through groove; 7. Lifting assembly; 8. Water pumping pipe; 9. Water supply pipe two; 10. Water pump one; 11. Water supply pipe one; 12. Water pump two; 13. Water inlet pipe; 14. Water outlet pipe; 15. Fixed roller; 16. Rotating roller; 17. Graphene heating plate; 18. Heating tube; 19. Waste heat recovery plate; 20. Corrugated groove; 21. Water pump three. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0029] Example 1, such as Figure 1-5As shown, this utility model provides a drying device for textile fabrics, including a drying chamber 1, a waste heat recovery device, and a dual heating device. A support box 2 is installed inside the drying chamber 1, and two fixed rollers 15 are fixedly connected inside the support box 2. A water storage tank 3 is fixedly connected to one side of the support box 2. The waste heat recovery device includes: a waste heat recovery plate 19 installed at the top of the inner cavity of the drying chamber 1, with a sealed guide channel inside the waste heat recovery plate 19; a second water pump 12 fixedly connected to one side of the water storage tank 3, with one end of the second water pump 12 connected to the bottom of one side of the waste heat recovery plate 19 via a water supply pipe 11, and the other end of the second water pump 12 connected to one end of the two fixed rollers 15 via a water inlet pipe 13; and a first water pump 10 fixedly connected to the top of the water storage tank 3 near the second water pump 12, with one end of the first water pump 10 connected to the two fixed rollers 15 via a water outlet pipe 14. One end of the fixed roller 15 is connected, and the other end of the water pump 10 is connected to the inside of the water storage tank 3 through the water supply pipe 2 9. The top of the water storage tank 3 is fixedly connected to the water pump 3 21. One end of the water pump 3 21 is connected to the inside of the water storage tank 3 through the water pumping pipe 8, and the other end of the water pump 3 21 is connected to one side of the bottom of the waste heat recovery plate 19 through the water supply pipe 3 5. The waste heat recovery plate 19 is made of aluminum alloy metal. The surface of the waste heat recovery plate 19 is designed with multiple wave-shaped grooves 20 to increase the contact area with hot air. An observation window 4 is provided on one side of the water storage tank 3. The inner cavity of the drying box 1 is provided with a lifting component 7. The lifting component 7 is fixedly connected to one side of the support box 2. A through groove 6 is opened through the middle of the support box 2. Through holes are opened through the waste heat recovery plate 19 and the drying box 1. The two through holes are coaxially arranged with the through groove 6.

[0030] In this embodiment, water pump 21 draws cold water from the water storage tank 3 through the pumping pipe 8 and delivers it to the waste heat recovery plate 19. The heating pipe 18 inside the fixed roller 15 heats the cold water. The two rotating rollers 16 rotate inside the support box 2 to dry the textile fabric. The heat generated during drying, the water vapor evaporated from the fabric, and the heat conducted by the fixed roller 15 form hot air. When this air comes into contact with the recovery plate, it releases heat and is absorbed by the cold water flowing inside the waste heat recovery plate 19, thus achieving waste heat recovery. Then, water pump 212 and water pipe 11 draw out the heated water and deliver it to the two fixed rollers 15 through the inlet pipe 13. Then, water pump 212 and water pipe 14 draw out the water from the fixed rollers 15 and deliver it to the water storage tank 3 through the water pipe 29. Finally, the water is cooled by the cooling fan at the top. The cooling fan is described in detail in the comparative example. As will not be elaborated further in this application, a preheating cycle is formed. The heat that would otherwise be directly lost can be collected by the waste heat recovery plate 19 and used to preheat the cold water supplied by the water storage tank 3. After the preheated water enters the fixed roller 15, the heating tube 18 does not need to start heating from zero, which can shorten the time to heat to the target temperature and reduce the energy consumption of the heating tube 18. Moreover, after the preheated water enters the fixed roller 15, the rotating roller 16 can reach the required drying temperature more quickly, reducing the waiting time for the fabric to heat up after entering the drying area and speeding up the drying process. Because the preheated water temperature is relatively stable, the temperature fluctuation of the fixed roller 15 is smaller, which can make the fabric heated more evenly and avoid the drying quality being affected by sudden temperature changes. This is especially suitable for drying scenarios of temperature-sensitive textile fabrics, reducing the wear and tear of the heating tube 18 under long-term high-intensity heating and helping to extend the service life of the heating tube 18.

[0031] Example 2, as Figure 1-5 As shown, the dual heating device includes: heating tubes 18 are fixedly installed inside one end of two fixed rollers 15, and rotating rollers 16 are rotatably connected to the outside of the two fixed rollers 15. The surfaces of the two rotating rollers 16 are provided with through mounting grooves, and graphene heating elements 17 that can be controlled independently are provided in multiple mounting grooves. The graphene heating elements 17 are distributed equidistantly along a straight line on the outer surface of the rotating rollers 16.

[0032] In this embodiment, the heating tube 18 and the graphene heating plate 17 can be activated. The heating tube 18 heats the water inside the fixed roller 15, and the graphene heating plate 17 generates heat on the surface of the rotating roller 16 to dry the textile fabric. This forms a dual heating mode of hot water conduction and graphene direct heating. The graphene heating plate 17 has excellent thermal conductivity and heating uniformity, and can directly act on the fabric surface to quickly raise the surface temperature of the fabric. At the same time, the heat from the hot water in the fixed roller 15 penetrates into the inner layer from the rotating roller 16 where the fabric contacts it. The synergistic effect of the two can accelerate the evaporation of moisture in the inner and outer layers of the fabric, significantly shortening the drying time of thick fabrics. In terms of time, it improves overall production efficiency. Under the dual heating mode, the fabric surface and the side in contact with the roller 16 can obtain uniform heat, reducing the problem of local overheating or insufficient drying caused by a single heating method. It is especially suitable for temperature-sensitive fabrics, reducing the risk of fabric deformation and discoloration due to uneven heating. For thin fabrics, only the hot water conduction mode of the heating tube 18 can be used to meet the drying needs using the existing water circulation system. For thick fabrics, the graphene heating plate 17 is activated simultaneously for auxiliary heating to achieve on-demand heating. This flexible heating mode can avoid the energy waste caused by single high-intensity heating.

[0033] Working principle: During use, the heating tube 18 and graphene heating plate 17 can be activated. The heating tube 18 heats the water inside the fixed roller 15, and the graphene heating plate 17 generates heat on the surface of the rotating roller 16 to dry the textile fabric, forming a dual heating mode of hot water conduction and graphene direct heating. Then, the water pump 21 draws cold water from the water storage tank 3 through the water pumping pipe 8 and delivers it to the waste heat recovery plate 19. The heating tube 18 inside the fixed roller 15 heats the cold water. The two rotating rollers 16 rotate inside the support box 2 to dry the textile fabric. The heat generated during the drying process is as follows: the water vapor evaporated from the fabric and the heat conducted by the fixed roller 15 forms hot air, which releases heat when it comes into contact with the recovery plate. This heat is absorbed by the cold water flowing inside the waste heat recovery plate 19, thus achieving waste heat recovery. Then, the heated water is pumped out through the second water pump 12 and the first water pipe 11, and transported to the two fixed rollers 15 through the inlet pipe 13. Then, the water inside the fixed rollers 15 is pumped out through the second water pump and the outlet pipe 14, and transported to the water storage tank 3 through the second water pipe 9. Finally, the water is cooled by the cooling fan at the top.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A drying device for textile fabrics, comprising a drying chamber (1) and a waste heat recovery device, characterized in that: The drying oven (1) is equipped with a support box (2), and two fixed rollers (15) are fixedly connected inside the support box (2). A water storage tank (3) is fixedly connected to one side of the support box (2). The drying oven (1) is equipped with a waste heat recovery device, which includes: A waste heat recovery plate (19) is provided at the top of the inner cavity of the drying oven (1). A sealed guide channel is opened inside the waste heat recovery plate (19). A water pump (12) is fixedly connected to one side of the water storage tank (3). One end of the water pump (12) is connected to the bottom of one side of the waste heat recovery plate (19) through a water supply pipe (11). The other end of the water pump (12) is connected to one end of two fixed rollers (15) through a water inlet pipe (13). A waste heat recovery plate (19) is fixedly connected to the top of the water storage tank (3) near the water pump (12). Water pump one (10), one end of which is connected to one end of two fixed rollers (15) through water outlet pipe (14), and the other end of which is connected to the inside of water storage tank (3) through water supply pipe two (9). Water pump three (21) is fixedly connected to the top of water storage tank (3). One end of water pump three (21) is connected to the inside of water storage tank (3) through water pumping pipe (8), and the other end of water pump three (21) is connected to one side of the bottom of waste heat recovery plate (19) through water supply pipe three (5). The fixed roller (15) is equipped with a dual heating device.

2. The textile fabric drying device according to claim 1, characterized in that: The waste heat recovery plate (19) is made of aluminum alloy.

3. The textile fabric drying device according to claim 2, characterized in that: The surface of the waste heat recovery plate (19) is designed with multiple corrugated grooves (20).

4. The textile fabric drying device according to claim 1, characterized in that: An observation window (4) is provided on one side of the water storage tank (3).

5. The textile fabric drying device according to claim 1, characterized in that: The drying oven (1) is equipped with a lifting assembly (7) in its inner cavity, and the lifting assembly (7) is fixedly connected to one side of the support box (2).

6. The textile fabric drying device according to claim 5, characterized in that: The support box (2) has a through groove (6) in the middle, and the waste heat recovery plate (19) and the drying box (1) are both provided with through holes. The two through holes are coaxially arranged with the through groove (6).

7. The textile fabric drying device according to claim 1, characterized in that: The dual heating device includes: Heating tubes (18) are fixedly installed inside one end of each of the two fixed rollers (15), and rotating rollers (16) are rotatably connected to the outside of each of the two fixed rollers (15). The surfaces of the two rotating rollers (16) are provided with through mounting grooves, and graphene heating elements (17) that can be controlled independently are provided in each of the multiple mounting grooves.

8. A drying device for textile fabrics according to claim 7, characterized in that: Multiple graphene heating elements (17) are equidistantly distributed along a straight line on the outer surface of the roller (16).

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