An energy-saving dryer
By using an air pump in the dryer to circulate externally heated air, the problem of unrecoverable hot air is solved, achieving efficient heat recovery and energy saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI HAIHUA MASCH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-26
AI Technical Summary
Existing dryers cannot effectively recover and utilize the hot air emitted during the drying process, resulting in energy waste and failing to achieve true energy-saving effects.
An air pump heats the outside air and introduces it into the drying chamber. The air is then re-inhaled and heated by the air pump before flowing back into the drying chamber for use. Combined with rotating roller heating, this achieves the recycling of thermal energy.
It achieves efficient heat recovery and utilization, reduces heating energy consumption, and improves the energy-saving effect of the dryer.
Smart Images

Figure CN224285259U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dryer technology, specifically relating to an energy-saving dryer. Background Technology
[0002] In daily life, fabric dryers are commonly used in fabric processing technology. They are used to quickly clean and dry wet fabrics. Hot air is blown into the machine through rotating iron wheels, causing moisture to evaporate from the fabric. However, during the drying process, the dryer releases hot air into the environment, wasting energy. Existing dryers cannot directly recover and reuse the hot air generated, failing to achieve energy conservation. Therefore, there is an urgent need for an energy-efficient dryer.
[0003] A patent with publication number CN220153169U discloses an energy-saving fabric dryer, which includes an inlet fan, a dryer shell, heating wires, hollow rollers, air jets, a displacement chamber, a rotary tube, a water inlet pipe, and an exhaust port. In operation, the inlet fan draws air into the dryer shell, where it is heated by the heating wires. The heated air then enters the hollow rollers and is sprayed onto the fabric through the air jets, thus drying the fabric. The exhausted hot air is then introduced into the displacement chamber and undergoes thermal exchange through the rotary tube, causing the water entering through the water inlet pipe to absorb heat and be discharged, thereby recovering and utilizing heat energy. The displaced air is then discharged through the exhaust port.
[0004] The above solution uses a rotary tube to exchange hot air for hot water, thus recovering and utilizing heat energy. However, since the dryer itself uses hot air to dry the fabric, the hot air discharged after being replaced with hot water cannot be directly used in the dryer. Therefore, although the above solution can recover and utilize heat energy, it does not bring good energy-saving effects to the dryer, and its practical effect is only average. Utility Model Content
[0005] To address the problems existing in the background technology, this utility model provides an energy-saving dryer.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] An energy-saving dryer includes a drying chamber, which contains both a support assembly for supporting fabric and a pipe assembly for conveying hot air. The top of the drying chamber is fixedly connected to a first exhaust pipe via a filter assembly and an air inlet pipe via a heating assembly. The heating assembly is connected to the pipe assembly, and the air inlet pipe is connected to the first exhaust pipe. Furthermore, an air pump is fixedly installed at the connection point between the heating assembly and the air inlet pipe; the input end of the air pump is connected to the air inlet pipe, and the output end of the air pump is connected to the heating assembly.
[0008] Furthermore, the support assembly includes a first connecting frame, and a second connecting frame is fixedly installed inside the drying oven, with the first connecting frame and the second connecting frame arranged symmetrically; the first connecting frame is fixedly connected to the inner wall of the drying oven, and the second connecting frame is fixedly connected to the drying oven through a fixing rod; both the first connecting frame and the second connecting frame are T-shaped and hollow, and three hollow rotating rollers are rotatably connected between them.
[0009] Furthermore, a second connecting pipe is fixedly connected to the first connecting frame, and the second connecting pipe is connected to the first exhaust pipe; a second exhaust pipe is fixedly connected to the second connecting frame, and the second exhaust pipe is connected to the external environment.
[0010] Furthermore, through holes are provided on both sides of the drying box for the fabric to pass through.
[0011] Furthermore, the pipe assembly includes a first connecting pipe, which is fixedly installed on the top inner wall of the drying oven, and a jet box is fixedly connected to the bottom of the first connecting pipe, with several jet holes opened on the outer surface of the jet box.
[0012] Furthermore, the heating assembly includes a heating box, which is fixedly installed on the top of the drying box, and heating elements are fixedly installed inside the heating box; the top of the heating box is connected to the output end of the air pump, and the bottom of the heating box is connected to the first connecting pipe.
[0013] This application has the following beneficial effects:
[0014] 1. An air pump heats outside air before it enters the drying chamber, drying the fabric inside. Simultaneously, most of the hot air exhausted from the drying chamber is re-drawn in by the air pump, reheated, and returned to the chamber for reuse, thus recovering heat energy. Furthermore, the re-drawn-in hot air itself carries some heat, reducing the energy consumption of the heating element and further improving energy efficiency, resulting in greater practicality.
[0015] 2. A small portion of the hot air discharged from the drying chamber is introduced into the interior of the rotating roller through the second connecting pipe, which can more effectively dry the fabric and further improve the practical effect of this application. Attached Figure Description
[0016] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the box door after it is opened;
[0019] Figure 3 This is a schematic diagram of the internal structure of the drying oven of this utility model;
[0020] Figure 4 This is a cross-sectional view of the utility model;
[0021] Figure 5 This is an exploded view of the jet box and rotating roller of this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Drying oven; 2. Oven door; 3. Through hole; 4. Heating box; 5. Air pump; 6. Air inlet pipe; 7. Filter assembly; 8. First exhaust pipe; 9. Heating element; 10. First connecting pipe; 11. Air jet box; 12. First connecting frame; 13. Rotating roller; 14. Second connecting frame; 15. Fixing rod; 16. Second connecting pipe; 17. Second exhaust pipe. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] like Figures 1-5 As shown, the technical solution adopted by this utility model is as follows: an energy-saving dryer includes a drying box 1, a door 2 is hinged to one side of the drying box 1, and the drying box 1 is provided with both a support assembly for supporting the fabric and a pipe assembly for conveying hot air, and the pipe assembly is fixedly connected to the support assembly.
[0026] The top of the drying oven 1 is fixedly connected to both the first exhaust pipe 8 via a filter assembly 7 and an air inlet pipe 6 via a heating assembly. The heating assembly is connected to the pipe assembly, and the air inlet pipe 6 is connected to the first exhaust pipe 8. (It should be noted that the filter assembly 7 only serves a filtering function, and this application does not specifically limit it. Common filter screens and filter plates can all be used as the filter assembly 7 in this application.)
[0027] In addition, an air pump 5 is fixedly installed at the connection between the heating component and the air inlet pipe 6. The input end of the air pump 5 is connected to the air inlet pipe 6, and the output end of the air pump 5 is connected to the heating component.
[0028] Among them, such as Figures 3-4 As shown, the support assembly includes a first connecting frame 12. The first connecting frame 12 and the second connecting frame 14 are fixedly installed inside the drying chamber 1, and are symmetrically arranged. The first connecting frame 12 is fixedly connected to the inner wall of the drying chamber 1, and the second connecting frame 14 is fixedly connected to the drying chamber 1 via a fixing rod 15. Both the first connecting frame 12 and the second connecting frame 14 are T-shaped and hollow, and three hollow rotating rollers 13 are rotatably connected between them, with fabric wound around the surface of the rotating rollers 13.
[0029] Furthermore, through holes 3 are provided on both sides of the drying box 1 for the fabric to pass through.
[0030] Furthermore, a second connecting pipe 16 is fixedly connected to the first connecting frame 12, and the second connecting pipe 16 is connected to the first exhaust pipe 8; a second exhaust pipe 17 is fixedly connected to the second connecting frame 14, and the second exhaust pipe 17 is connected to the external environment.
[0031] The piping assembly includes a first connecting pipe 10, which is fixedly installed on the top inner wall of the drying chamber 1. An air jet box 11 is fixedly connected to the bottom of the first connecting pipe 10, and several air jet holes are formed on the outer surface of the air jet box 11. Furthermore, both ends of the air jet box 11 are fixedly connected to the opposing sides of the first connecting frame 12 and the second connecting frame 14.
[0032] The heating assembly includes a heating box 4, which is fixedly installed on the top of the drying box 1, and a heating element 9 is fixedly installed inside the heating box 4. The top of the heating box 4 is connected to the output end of the air pump 5, and the bottom of the heating box 4 is connected to the first connecting pipe 10.
[0033] Working principle: When in use, open the box door 2 and wrap the fabric around the three rotating rollers 13 so that the two ends of the fabric pass through the two through holes 3.
[0034] Then, close the door 2, start the air pump 5 and the heating element 9. The air pump 5 introduces outside air (after filtration) into the heating box 4 through the first exhaust pipe 8 and the air inlet pipe 6. The air introduced into the heating box 4 will be heated by the heating element 9. The heated gas is introduced into the air jet box 11 through the first connecting pipe 10, and blown onto the fabric through the air jet holes on the surface of the air jet box 11, thereby drying the fabric.
[0035] During the drying process described above, the hot air inside the drying chamber 1 is introduced into the first exhaust pipe 8 through the filter assembly 7. Most of the hot air discharged from the drying chamber 1 is then drawn back into the heating chamber 4 by the air pump 5, heated by the heating element 9, and then returned to the drying chamber 1 for reuse, thus achieving heat recovery. Furthermore, since the re-drawn hot air itself carries some heat, it is easier to heat it, thereby reducing the energy consumption of the heating element 9, further improving energy efficiency, and enhancing practicality.
[0036] Additionally, a small portion of the hot air discharged from the drying chamber 1 is guided into the first connecting frame 12 via the second connecting pipe 16, and then into the rotating roller 13 via the first connecting frame 12, thereby heating the rotating roller 13 and improving the drying effect on the fabric. Finally, the hot air in the rotating roller 13 is discharged through the second connecting frame 14 and the second exhaust pipe 17.
[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An energy saving type dryer characterized by, The equipment includes a drying chamber (1), which is equipped with both a support assembly for supporting the fabric and a pipe assembly for conveying hot air. The top of the drying chamber (1) is fixedly connected to a first exhaust pipe (8) through a filter assembly (7) and to an air inlet pipe (6) through a heating assembly. The heating assembly is connected to the pipe assembly, and the air inlet pipe (6) is connected to the first exhaust pipe (8). In addition, an air pump (5) is fixedly installed at the connection between the heating assembly and the air inlet pipe (6). The input end of the air pump (5) is connected to the air inlet pipe (6), and the output end of the air pump (5) is connected to the heating assembly.
2. The energy saving dryer according to claim 1, characterized in that, The support assembly includes a first connecting frame (12), and a first connecting frame (12) and a second connecting frame (14) are fixedly installed inside the drying box (1). The first connecting frame (12) and the second connecting frame (14) are symmetrically arranged. The first connecting frame (12) is fixedly connected to the inner wall of the drying box (1), and the second connecting frame (14) is fixedly connected to the drying box (1) through a fixing rod (15). The first connecting frame (12) and the second connecting frame (14) are both T-shaped hollow, and three hollow rotating rollers (13) are rotatably connected between them.
3. The energy saving dryer according to claim 2, characterized in that, A second connecting pipe (16) is fixedly connected to the first connecting frame (12), and the second connecting pipe (16) is connected to the first exhaust pipe (8); a second exhaust pipe (17) is fixedly connected to the second connecting frame (14), and the second exhaust pipe (17) is connected to the external environment.
4. The energy saving dryer according to claim 1, wherein Both sides of the drying box (1) have through holes (3) for the fabric to pass through.
5. The energy saving dryer according to claim 1, wherein The pipe assembly includes a first connecting pipe (10), the first connecting pipe (10) is fixedly installed on the top inner wall of the drying box (1), the bottom of the first connecting pipe (10) is fixedly connected to an air jet box (11), and a plurality of air jet holes are opened on the outer surface of the air jet box (11).
6. The energy saving dryer according to claim 5, characterized in that, The heating assembly includes a heating box (4), which is fixedly installed on the top of the drying box (1), and a heating element (9) is fixedly installed inside the heating box (4); the top of the heating box (4) is connected to the output end of the air pump (5), and the bottom of the heating box (4) is connected to the first connecting pipe (10).