CN108534481A - A kind of recycling system of cloth drying machine waste heat - Google Patents

Abstract

The invention discloses a recycling system for waste heat of a clothes dryer, which comprises an outer box, a heating source is fixedly connected to one side of the bottom of the inner cavity of the outer box, and the bottom of the inner cavity of the outer box is located at a place where the heating heat source is far away from the outer box. One side is fixedly connected with a heat exchange module, the bottom of the heat exchange module is provided with a moisture outlet, the side of the heat exchange module away from the heating source is provided with a cold air input port, and the top of the support isolation plate is fixed directly above the heating source A drying box is connected, the bottom of the inner cavity of the heat insulation layer is fixedly connected with a hot air input port, the top of the inner cavity of the drying box is fixedly connected with a waste heat input port, and the drying box is in the middle of the outer wall on one side close to the blower The impurity removal module is fixedly connected to the position, and the invention relates to the technical field of clothes dryers. The device reduces the energy consumption of the dryer in the working process, realizes the effective recovery and reuse of waste heat, saves energy and protects the environment, and has significant economic benefits.

Description

A waste heat recovery and reuse system for clothes dryer

technical field

The invention relates to the technical field of clothes dryers, in particular to a recycling system for waste heat of clothes dryers.

Background technique

In humid days, clothes will not dry for several days and quilts will get damp. Many families will use dryers to solve such troubles. Most of the current household clothes dryers are heated by electricity, and air is input from the air inlet. The hot air flow formed in the dryer box is mixed with a large amount of water vapor, lint and other impurities, and it is not easy to reuse it. Therefore, it is usually treated as waste gas and discharged out of the dryer through the exhaust port, while drying The dryer draws in fresh, cool air. Obviously, the released heat is removed as waste gas, which not only wastes energy, but also destroys the surrounding operating environment. Also because the thermal energy is not effectively utilized, the dryer consumes a lot of energy during the working process. In order to keep up with the pace of the national development plan for energy conservation and emission reduction, it is the development trend of a new generation of clothes dryers to reasonably recycle and utilize the waste heat steam generated by clothes dehumidifiers.

Contents of the invention

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the present invention provides a waste heat recovery and reuse system for clothes dryers, which solves the problem that the existing clothes dryers remove the hot air flow with water vapor and impurities as waste gas, which not only wastes energy, but also destroy the surrounding operating environment. Also because the thermal energy has not been effectively utilized, the dryer consumes a lot of energy during the working process.

(2) Technical solution

In order to achieve the above objectives, the present invention is achieved through the following technical solutions: a waste heat recovery and reuse system for clothes dryers, including an outer box, a heating source is fixedly connected to the bottom side of the inner cavity of the outer box, and the outer box A heat exchange module is fixedly connected to the bottom of the inner cavity on the side away from the heat source from the outer box. A water outlet is provided at the bottom of the heat exchange module. A cold air input port is provided on the side away from the heat source of the heat exchange module. The bottom of the inner cavity of the outer box is located on the side of the heat exchange module away from the heating source, and a blower is fixedly connected to the bottom of the inner cavity of the outer box, and a drying device is fixedly connected to the bottom of the inner cavity of the outer box. The side of the drying device far away from the blower is fixedly connected with a filter screen, and the inner walls of both sides of the inner cavity of the outer box are located above the heating source and are fixedly connected with a supporting isolation plate, and the top of the supporting isolation plate is located directly above the heating source and is fixedly connected with a drying A box body, the inner surface of the drying box is fixedly connected with a heat insulation layer, the bottom of the inner cavity of the heat insulation layer is fixedly connected with a hot air input port, and the inner wall on both sides of the drying box is provided with a hanging rod device at the upper middle position, The top of the inner cavity of the drying box is fixedly connected with a waste heat input port, and the middle position of the outer wall of the drying box close to the blower is fixedly connected with an impurity removal module, and the side of the waste heat input port far away from the outer box passes through the first The connection pipe communicates with the impurity removal module, and the side of the impurity removal module away from the waste heat input port communicates with the heat exchange module through the second connection pipe.

Preferably, the heating heat source includes a cylinder, the inner surface of the cylinder is provided with an insulating layer, one end of the cylinder is provided with an air inlet, the inner cavity of the cylinder is provided with a heating pipe and a deflector, and the cylinder The other end is fixedly connected with a protective cover, the bottom of the protective cover is fixedly connected with a wiring hole, the top of the cylinder close to the protective cover is provided with an air outlet, and the heating pipes respectively pass through the cylinder and the protective cover and extend to the protective cover. Cover cavity.

Preferably, the drying device includes a drying outer frame, the outer wall of the drying outer frame close to the filter screen is provided with an air vent, and the bottom and the middle of the inner cavity of the drying outer frame are fixedly connected with a water-absorbing material.

Preferably, the hanging rod device includes two fixed groove blocks, the sides of the fixed groove blocks that are far away from each other are fixedly connected with the drying cabinet, and the sides of the fixed groove blocks that are close to each other are movably connected with a hanging rod, so that The outer surface of the hanging rod is provided with several positioning rings.

Preferably, the impurity removal module includes a miscellaneous removal box, the front and back of the inner cavity of the miscellaneous removal box are fixedly connected with rails at the middle and lower positions, and the top of the rails is slidably connected with a miscellaneous removal net box, and the miscellaneous removal box is close to the outside. One side of the box is slidably connected with a miscellaneous box door, and the top of the miscellaneous box door is fixedly connected with a spur plate, and the side of the spur plate far away from the outer box is meshed with a driven gear, and the driven gear The side of the surface far away from the spur plate is meshed with a driving gear, and the inner surface of the driving gear is connected with an impurity removal motor through a rotating shaft.

Preferably, the output end of the heating source communicates with the hot air input port through an output hose, and the input end of the heating source communicates with the heat exchange module through an input hose.

Preferably, the input end of the blower communicates with the drying device through an air inlet pipe, and the output end of the blower communicates with the cold air input port through an air outlet pipe.

Preferably, the moisture outlet runs through the outer box and extends to the bottom of the outer box, and the outer wall of the outer box away from the drying box is provided with a louver at the position of the filter screen.

Preferably, the first connection pipe runs through the impurity removal module and extends to the inner chamber of the impurity removal module, the second connection pipe runs through the support isolation plate and extends to the bottom of the support isolation plate, and the first connection pipe and the second connection The pipe material is heat insulating material.

Preferably, the front of the drying box is provided with a sealed box door, and universal wheels are fixedly connected to the symmetrical positions of the bottom of the outer box.

(3) Beneficial effects

The invention provides a recycling system for waste heat of a clothes dryer, which has the following beneficial effects:

In the present invention, the cold air enters through the cold air input port of the drying unit, and the clothes in the dryer cabinet are dried after being heated by a heat source. After the water in the clothes evaporates, a hot air flow is formed in the cabinet, and the waste heat is recycled and reused through the waste heat input port. system. The waste heat recovery and reuse system is equipped with an impurity removal module, which is used to filter impurities in the waste heat, such as cotton wool. The waste heat through the impurity removal module enters the heat exchanger module, and the heat exchanger is used to exchange heat between the high-temperature and high-humidity waste heat entering the waste heat recovery and reuse system and the fresh cold air that will enter the dryer, and the fresh cold air becomes high-temperature dry air Entering the dryer box, the waste heat is recycled to heat fresh cold air. The device reduces the energy consumption of the dryer in the working process, realizes the effective recovery and reuse of waste heat, saves energy and protects the environment, and has significant economic benefits.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is a flow chart of the system of the present invention;

Fig. 3 is a schematic diagram of the structure of the heating heat source of the present invention;

Fig. 4 is a schematic structural diagram of the impurity removal module of the present invention.

In the figure: 1-outer box, 2-heating source, 201-cylinder body, 202-insulation layer, 203-air intake hole, 204-heating pipe, 205-deflector, 206-protective cover, 207-wiring hole, 208-Air outlet, 3-Heat exchange module, 4-Moisture outlet, 5-Cold air inlet, 6-Blower, 7-Drying device, 71-Drying frame, 72-Air vent, 73-Absorbent material, 8- Filter screen, 9-support isolation plate, 10-drying box, 11-heat insulation layer, 12-hot air input port, 13-hanging rod device, 131-fixed groove block, 132-hanging rod, 133-locating ring, 14-waste heat input port, 15-removal module, 151-removal box, 152-track, 153-removal cage, 154-removal box door, 155-straight tooth plate, 156-driven gear, 157- Driving gear, 158-impurity removal motor, 16-the first connecting pipeline, 17-the second connecting pipeline, 18-blinds, 19-sealed box door, 20-universal wheels.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-4, the present invention provides a technical solution: a waste heat recovery and reuse system for clothes dryers, including an outer box 1, a heating source 2 is fixedly connected to the bottom side of the inner cavity of the outer box 1, and the heating source 2 Including a cylinder 201, the inner surface of the cylinder 201 is provided with an insulating layer 202, one end of the cylinder 201 is provided with an air inlet 203, the inner cavity of the cylinder 201 is provided with a heating pipe 204 and a deflector 205, and the other end of the cylinder 201 is fixed Connected with a protective cover 206, the bottom of the protective cover 206 is fixedly connected with a wiring hole 207, and the top of the side of the cylinder 201 close to the protective cover 206 is provided with an air outlet 208, and the heating pipes 204 respectively pass through the cylinder 201 and the protective cover 206 and extend to the protective cover 206. Cover 206 lumen. The output end of the heating heat source 2 communicates with the hot air input port 12 through the output hose, and the input end of the heating heat source 2 communicates with the heat exchange module 3 through the input hose. The bottom of the inner cavity of the outer box 1 is located on the side of the heating source 2 away from the outer box 1, and is fixedly connected with a heat exchange module 3. The bottom of the heat exchange module 3 is provided with a moisture outlet 4, and the water outlet 4 runs through the outer box 1 and extends to the outer box. 1. The bottom of the heat exchange module 3 is provided with a cold air input port 5 on the side away from the heating source 2. The bottom of the inner cavity of the outer box 1 is located on the side of the heat exchange module 3 away from the heating source 2. A blower 6 is fixedly connected. The input end of the blower 6 passes through The air inlet pipe is communicated with the drying device 7, and the output end of the blower 6 is communicated with the cold wind input port 5 through the air outlet pipe. The bottom of the inner cavity of the outer box 1 is located on the side of the blower 6 away from the heat exchange module 3 and is fixedly connected with a drying device 7. The drying device 7 includes a drying outer frame 71, and the outer wall of the drying outer frame 71 close to the filter screen 8 is provided with a vent 72. The bottom and the middle of the top of the inner cavity of the drying outer frame 71 are fixedly connected with a water-absorbing material 73 . The bottom of the inner cavity of the outer box 1 is located on the side of the drying device 7 away from the blower 6 and is fixedly connected with a filter screen 8, and the inner walls on both sides of the inner cavity of the outer box 1 are located above the heating source 2 and fixedly connected with a support isolation plate 9, and the top of the support isolation plate 9 Located directly above the heating source 2, a drying box 10 is fixedly connected, the inner surface of the drying box 10 is fixedly connected with a heat insulation layer 11, and the bottom of the inner cavity of the heat insulation layer 11 is fixedly connected with a hot air input port 12, and the drying box 10 The upper and middle positions of the inner walls on both sides are provided with a hanging rod device 13, and the hanging rod device 13 includes two fixed groove blocks 131. A hanging rod 132 is movably connected to one side, and a plurality of positioning rings 133 are arranged on the outer surface of the hanging rod 132 . The top of the inner cavity of the drying box 10 is fixedly connected with a waste heat input port 14, and the middle position of the outer wall of the side of the drying box 10 close to the blower 6 is fixedly connected with a removal module 15. The removal module 15 includes a removal box 151. The front and back middle and lower positions of the inner cavity of the box 151 are fixedly connected with a track 152, and the top of the track 152 is slidably connected with a miscellaneous net box 153, and the side of the miscellaneous box 151 near the outer box 1 is slidably connected with a miscellaneous removal box door 154. The top of the box door 154 is fixedly connected with a spur plate 155, and the side of the spur plate 155 away from the outer box 1 is meshed with a driven gear 156, and the outer surface of the driven gear 156 is meshed with a drive gear on the side far away from the spur plate 155. 157, the inner surface of the driving gear 157 is rotatably connected with an impurity removal motor 158 through a rotating shaft. The side of the waste heat input port 14 away from the outer box 1 communicates with the impurity removal module 15 through the first connecting pipe 16 , and the side of the impurity removal module 15 away from the waste heat input port 14 communicates with the heat exchange module 3 through the second connecting pipe 17 . The first connection pipe 16 runs through the impurity removal module 15 and extends to the inner cavity of the impurity removal module 15, the second connection pipe 17 runs through the support isolation plate 9 and extends to the bottom of the support isolation plate 9, the first connection pipe 16 and the second connection pipe 17 The material is heat insulating material. The outer wall of the outer box 1 away from the side of the drying box 10 is located at the position of the filter screen 8 and is provided with a louver 18, and the front of the drying box 10 is provided with a sealed box door 19, and the symmetrical position of the bottom of the outer box 1 is fixedly connected with universal wheels. 20. The device reduces the energy consumption of the dryer in the working process, realizes the effective recovery and reuse of waste heat, saves energy and protects the environment, and has significant economic benefits.

When in use, the waste heat recovery and reuse system of the clothes dryer includes a waste heat input port 14 , an impurity removal module 15 , a heat exchange module 3 and a water discharge port 4 . In addition, the waste heat recovery and reuse system of the clothes dryer needs to be connected with the dryer unit in the work of the dryer. Normally, the drying unit includes a cold air input port 5 , a heating heat source 2 , a hot air input port 12 and a drying box 10 . The drying box 10 is a closed space for storing clothes to be dried, the lower end is connected to the hot air input port 12 , and the upper end is connected to the waste heat input port 14 . The heating heat source 2 consumes electric energy to heat the cold air entering the cold air input port 5, and enters the drying cabinet 10 through the hot air input port 12 to provide hot air for the clothes to be dried. The waste heat input port 14 is connected to the first connecting pipe 16. The pipe material is heat insulating material, which reduces heat loss and maximizes waste heat recovery and utilization. There is an impurity removal module 15 in the middle of the pipe, which is used to filter impurities in the waste heat steam, such as Cotton, etc., to prevent impurities from entering the heat exchange module and affecting the heat transfer effect. The heat exchange module 3 is located outside the drying box 10, and performs heat exchange between the high-temperature and high-humidity hot air entering the waste heat recovery and reuse system and the fresh cold air entering the dryer. The lower end of the heat exchanger is provided with a water outlet 4, and the water drops condensed by the high-temperature waste heat steam are discharged out of the system through the water outlet. That is, waste heat is recycled to heat fresh cold air.

Or the recovery and reuse system of waste heat includes four parts: waste heat input port 14 , impurity removal module 15 , dehumidification module and water discharge port 4 . The core adopts membrane separation technology, using selective permeable membrane as the separation medium. Under the action of the driving force on both sides of the membrane, that is, the temperature difference, the components on the raw material side selectively permeate the membrane to achieve separation.

The waste heat recovery and reuse system of the clothes dryer needs to be connected with the dryer unit in the work of the dryer. Normally, the drying unit includes a cold air input port 5 , a heating heat source 2 , a hot air input port 12 and a drying box 10 . The drying cabinet 10 is a closed space for storing clothes to be dried, the lower end is connected to the hot air input port 12 , and the upper end is connected to the waste heat output port 14 . The heating heat source 2 consumes electric energy to heat the cold air input from the cold air input port 5 to provide hot air for the clothes to be dried through the hot air input port 12 .

The waste heat input port is connected with a pipeline, and the front end of the pipeline is provided with an impurity removal module 15 for filtering impurities in the waste heat steam. The pipe material is sulfonated polysulfone-polysulfone composite hollow fiber membrane. Polysulfone membrane materials have stable chemical properties, corrosion resistance and high temperature resistance, and have low surface free energy and large water contact angle, which is reflected in strong hydrophobicity. The other end is connected to the cold air input port 5 of the drying unit. The high-temperature and high-humidity waste heat air flows through the sulfonated polysulfone-polysulfone composite hollow fiber tube membrane. Membrane, high temperature dry air stays in the tube to achieve separation. High-temperature dry air is sent into the drying cabinet through the cold air input port 5 of the drying unit. Because the transmission rate of water vapor is at least two orders of magnitude higher than that of nitrogen and oxygen. On the permeation side, if the infiltrated water vapor cannot be removed in time, due to the hydrophilicity of the membrane material, water molecules will easily accumulate on the permeation side, reducing the subsequent permeation rate and resulting in a sharp drop in dehumidification performance. The purging method uses the treated part of the dry air as the purge gas to remove the water vapor on the permeation side. The end of the tube membrane is provided with a water vapor outlet, and the water vapor is discharged out of the system through the drain.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. without further restrictions. The phrase "the inclusion of a defined element does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element".

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. A recovery and reuse system for waste heat of a clothes dryer, comprising an outer box (1), characterized in that: a heating source (2) is fixedly connected to the bottom side of the inner cavity of the outer box (1), and the outer box (1) The bottom of the inner chamber of the box (1) is located on the side of the heating source (2) away from the outer box (1) and is fixedly connected with a heat exchange module (3), and the bottom of the heat exchange module (3) is provided with a moisture outlet (4), The side of the heat exchange module (3) away from the heating source (2) is provided with a cold air input port (5), and the bottom of the inner cavity of the outer box (1) is located at the side of the heat exchange module (3) away from the heating source (2). A blower (6) is fixedly connected to one side, and a drying device (7) is fixedly connected to the side of the blower (6) away from the heat exchange module (3) at the bottom of the inner cavity of the outer box (1). ) the bottom of the inner cavity is located on the side of the drying device (7) away from the blower (6) and is fixedly connected with a filter screen (8), and the inner walls on both sides of the inner cavity of the outer box (1) are located above the heating source (2) and fixedly connected with a Support the isolation plate (9), the top of the support isolation plate (9) is located directly above the heating source (2) and is fixedly connected with a drying box (10), and the inner surface of the drying box (10) is fixedly connected with a partition The heat layer (11), the bottom of the inner cavity of the heat insulation layer (11) is fixedly connected with the hot air input port (12), and the inner wall on both sides of the drying box (10) is provided with a hanging rod device (13). The top of the inner cavity of the drying box (10) is fixedly connected with a waste heat input port (14), and the middle position of the outer wall of the side of the drying box (10) close to the blower (6) is fixedly connected with a removal module ( 15), the side of the waste heat input port (14) away from the outer box (1) communicates with the impurity removal module (15) through the first connecting pipe (16), and the impurity removal module (15) is far away from the waste heat input port ( One side of 14) communicates with the heat exchange module (3) through the second connecting pipe (17). 2. The waste heat recovery and reuse system of a clothes dryer according to claim 1, characterized in that: the heating heat source (2) includes a cylinder (201), and the inner surface of the cylinder (201) is set There is an insulating layer (202), an air inlet (203) is opened at one end of the cylinder (201), and a heating pipe (204) and a deflector (205) are arranged in the inner cavity of the cylinder (201). The other end of the cylinder (201) is fixedly connected with a protective cover (206), the bottom of the protective cover (206) is fixedly connected with a wiring hole (207), and the top of one side of the cylinder (201) is close to the protective cover (206). An air outlet (208) is opened, and the heating pipe (204) respectively passes through the cylinder body (201) and the protective cover (206) and extends to the inner cavity of the protective cover (206). 3. A system for recovering and reusing waste heat from a clothes dryer according to claim 1, characterized in that: the drying device (7) includes a drying frame (71), and the drying frame (71) is close to An air vent (72) is opened on one side of the filter screen (8), and a water-absorbing material (73) is fixedly connected to the bottom and the middle of the top of the inner cavity of the drying outer frame (71). 4. A system for recovering and reusing waste heat from a clothes dryer according to claim 1, characterized in that: the hanging rod device (13) includes two fixed slots (131), and the fixed slots ( 131) The sides far away from each other are fixedly connected to the drying box (10), and the sides of the fixed groove blocks (131) close to each other are movably connected with a hanging rod (132), and the outer surface of the hanging rod (132) is set There are several positioning rings (133). 5. The waste heat recovery and reuse system of clothes dryer according to claim 1, characterized in that: the impurity removal module (15) includes an impurity removal box (151), and the impurity removal box (151) A track (152) is fixedly connected to the front and back of the inner cavity at the middle and lower positions, and the top of the track (152) is slidably connected to a miscellaneous net box (153). The miscellaneous box (151) is close to a side of the outer box (1). The side is slidingly connected with a miscellaneous removal box door (154), and the top of the miscellaneous removal box door (154) is fixedly connected with a straight-toothed plate (155), and the side of the straight-toothed plate (155) away from the outer box (1) is engaged The transmission has a driven gear (156), the outer surface of the driven gear (156) is meshed with a driving gear (157) on the side away from the spur plate (155), and the inner surface of the driving gear (157) rotates through the shaft Connect with impurity removing motor (158). 6. The waste heat recovery and reuse system of clothes dryer according to claim 1, characterized in that: the output end of the heating heat source (2) communicates with the hot air input port (12) through an output hose, and the The input end of the heating source (2) communicates with the heat exchange module (3) through an input hose. 7. The waste heat recovery and reuse system of clothes dryer according to claim 1, characterized in that: the input end of the blower (6) communicates with the drying device (7) through the air intake pipe, and the blower (6) ) output end communicates with the cold air input port (5) through the air outlet pipe. 8. The waste heat recovery and reuse system of clothes dryer according to claim 1, characterized in that: the water outlet (4) runs through the outer box (1) and extends to the bottom of the outer box (1), A louver (18) is provided at the position of the filter screen (8) on the outer wall of the outer box (1) away from the drying box body (10). 9. The waste heat recovery and reuse system of a clothes dryer according to claim 1, characterized in that: the first connecting pipe (16) runs through the impurity removal module (15) and extends to the impurity removal module (15) ) inner cavity, the second connecting pipe (17) runs through the supporting isolation plate (9) and extends to the bottom of the supporting insulating plate (9), the first connecting pipe (16) and the second connecting pipe (17) are made of insulation material. 10. The waste heat recovery and reuse system of clothes dryer according to claim 1, characterized in that: the front of the drying box (10) is provided with a sealed box door (19), and the outer box ( 1) Universal wheels (20) are fixedly connected to the bottom symmetrical positions.