A segmented energy-efficient heat pump drying apparatus

Abstract

The utility model provides a kind of segmented energy-saving heat pump drying device, belong to heat pump drying technical field.The segmented energy-saving heat pump drying device includes drying support structure and heat pump unit.The drying support structure includes support frame and sealing element, and the support frame is sequentially fixed with pretreatment drying bin, quick drying bin and depth drying bin, and sealing element is fixed in the inside of the connecting pipe;The heat pump unit includes three heat pumps and air pipe, three The heat pump is installed on the support frame, and three The heat pump is respectively communicated with the pretreatment drying bin, the quick drying bin and the depth drying bin by air pipe respectively.The utility model can use multiple heat pump units to dry raw materials at different temperatures in different stages, which helps to reduce load and improve energy efficiency ratio, and multiple unit multi-stage drying treatment can better meet the drying needs of different types of materials and improve adaptability.

Description

Technical Field

[0001] This utility model relates to the field of heat pump drying technology, and more specifically, to a segmentable energy-saving heat pump drying device. Background Technology

[0002] Heat pump drying equipment is a heat-lifting device based on the reverse Carnot cycle principle. It is mainly used in the fields of material dehydration and low-temperature drying, and is manufactured by companies such as Guangzhou Saibinuo and Wuhan Gete. A heat pump is essentially a heat-lifting device. High-temperature heat pump drying units utilize the reverse Carnot principle to absorb heat from the surrounding environment and transfer it to the object being heated. Its working principle is the same as that of a refrigeration machine, both operating according to the reverse Carnot cycle; the only difference is the operating temperature range.

[0003] Currently, existing heat pump drying devices typically employ a single heat pump unit and fixed drying parameters. Continuous high-temperature operation leads to high compressor load and low energy efficiency ratio, while also exhibiting weak adaptability to different materials and unsatisfactory drying effects. Therefore, it is necessary to propose a segmented, energy-saving heat pump drying device to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a segmentable energy-saving heat pump drying device, aiming to improve the problems of existing heat pump drying devices that typically use a single heat pump unit and fixed drying parameters. Continuous high-temperature operation leads to high compressor load, low energy efficiency ratio, and poor adaptability to different materials, resulting in unsatisfactory drying effects.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a segmentable energy-saving heat pump drying device, including a drying support structure and a heat pump unit.

[0007] The drying support structure includes a support frame, connecting pipes, and sealing components. A pretreatment drying chamber, a rapid drying chamber, and a deep drying chamber are sequentially fixed on the support frame. The pretreatment drying chamber and the rapid drying chamber are connected through the connecting pipes, and the rapid drying chamber and the deep drying chamber are also connected through the connecting pipes. Flow guides are installed inside the pretreatment drying chamber, the rapid drying chamber, and the deep drying chamber. Sealing components are fixed inside the connecting pipes. The heat pump unit includes three heat pump units and air ducts. The three heat pump units are mounted on the support frame and are respectively connected to the pretreatment drying chamber, the rapid drying chamber, and the deep drying chamber through air ducts.

[0008] In one embodiment of this utility model, the support frame includes a plurality of support rods and a support plate, the support plate is fixed between the plurality of support rods, a crossbar is fixed between the plurality of support rods, and a pad is fixed to the bottom of the support rod.

[0009] In one embodiment of this utility model, the pretreatment drying chamber, the rapid drying chamber, and the deep drying chamber are sequentially fixed to the upper end of the support rod, and all three heat pumps are mounted on the support plate.

[0010] In one embodiment of the present invention, a feed inlet is formed on one side of the upper end of the pretreatment drying chamber, and a discharge outlet is formed at the bottom of one end of the deep drying chamber.

[0011] In one embodiment of this utility model, the guide component includes a plurality of rollers and a servo motor. The plurality of rollers are rotatably installed inside the pretreatment drying chamber, the rapid drying chamber, and the deep drying chamber. A conveyor belt is installed on the plurality of rollers. The servo motor is installed on one side of the pretreatment drying chamber, the rapid drying chamber, and the deep drying chamber. The end of the output shaft of the servo motor is connected to one of the rollers.

[0012] In one embodiment of this utility model, the interior of the pretreatment drying chamber, the rapid drying chamber, and the deep drying chamber are all fixed with guide rails, which are inclined to one side and slide against the surface of the conveyor belt.

[0013] In one embodiment of the present invention, the sealing element includes a hopper and a driving part. The hopper is fixed inside the connecting pipe, and a sealing plate is hinged to one side of the bottom of the hopper. The driving part is installed between the sealing plate and the connecting pipe.

[0014] In one embodiment of the present invention, the driving unit includes two electric cylinders, one end of each electric cylinder is rotatably connected to a second connecting seat, the second connecting seat is fixed on the connecting pipe, and the output ends of each electric cylinder are rotatably connected to a first connecting seat, the first connecting seat being fixed on the sealing plate.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a segmented energy-saving heat pump drying device. During use, the raw material enters the pre-treatment drying chamber through the feed inlet. The heat pump provides a heat source to the pre-treatment drying chamber, and then a servo motor drives the rollers and conveyor belt to rotate and transport the raw material. During this transport, the heat pump performs pre-treatment drying, transferring the raw material to the hopper. At this point, the electric cylinder, controlled by a PLC controller and a time relay, cycles through the opening of the sealing plates. This allows each drying chamber to be sealed and maintain a relatively constant drying temperature. The raw material is then sequentially transferred to the rapid drying chamber and the deep drying chamber for drying, and then output through the discharge port. This allows multiple heat pump units to be used at different stages and temperatures during the drying process, which helps reduce the load and improve the energy efficiency ratio. Furthermore, the multi-unit, multi-stage drying process better meets the drying needs of different types of materials, improving adaptability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a first-view structural schematic diagram of the segmentable energy-saving heat pump drying device provided in this embodiment of the utility model.

[0018] Figure 2 A second-view structural schematic diagram of the segmentable energy-saving heat pump drying device provided for an embodiment of this utility model;

[0019] Figure 3 A cross-sectional structural diagram of a segmentable energy-saving heat pump drying device provided for an embodiment of this utility model;

[0020] Figure 4 A schematic diagram of the sealing structure of the segmentable energy-saving heat pump drying device provided for the embodiments of this utility model;

[0021] Figure 5 A schematic diagram of the flow guide structure of the segmentable energy-saving heat pump drying device provided for an embodiment of this utility model.

[0022] In the diagram: 100-Drying support structure; 110-Support frame; 111-Support rod; 112-Crossbar; 113-Support plate; 114-Pad plate; 120-Pre-treatment drying chamber; 121-Inlet; 130-Rapid drying chamber; 140-Deep drying chamber; 141-Outlet; 150-Connecting pipe; 160-Guide edge; 170-Guide component; 171-Roller; 172-Conveyor belt; 173-Servo motor; 180-Sealing component; 181-Hopper; 182-Sealing plate; 183-Drive unit; 1831-Electric cylinder; 1832-First connecting seat; 1833-Second connecting seat; 200-Heat pump unit; 210-Heat pump; 220-Air duct. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Example

[0025] Please see Figures 1-5 This utility model provides a technical solution: a segmentable energy-saving heat pump drying device, including a drying support structure 100 and a heat pump unit 200.

[0026] Please see Figures 1-5 The drying support structure 100 includes a support frame 110, a connecting pipe 150, and a sealing element 180. A pretreatment drying chamber 120, a rapid drying chamber 130, and a deep drying chamber 140 are fixed sequentially on the support frame 110. The pretreatment drying chamber 120 and the rapid drying chamber 130 are connected by the connecting pipe 150, and the rapid drying chamber 130 and the deep drying chamber 140 are also connected by the connecting pipe 150. A flow guide 170 is installed inside the pretreatment drying chamber 120, the rapid drying chamber 130, and the deep drying chamber 140. A sealing element 180 is fixed inside the connecting pipe 150.

[0027] The support frame 110 includes several support rods 111 and a support plate 113. The support plate 113 is fixed between the support rods 111, and a crossbar 112 is fixed between the support rods 111. A pad 114 is fixed to the bottom of the support rods 111. This support frame 110 allows the heat pump 210 to be kept away from the ground and also supports the pretreatment drying chamber 120, the rapid drying chamber 130, and the deep drying chamber 140. The interior of each of the pretreatment drying chamber 120, the rapid drying chamber 130, and the deep drying chamber 140 is fixed with a guide rail 160. The guide rail 160 is inclined to one side and slides against the surface of the conveyor belt 172. This inclined guide rail 160 helps to collect materials on the conveyor belt 172, preventing material waste caused by it being located at the edge.

[0028] The pretreatment drying chamber 120, rapid drying chamber 130, and deep drying chamber 140 are sequentially fixed to the upper end of the support rod 111. Three heat pumps 210 are mounted on the support plate 113. The pretreatment drying chamber 120 is equipped with a high-temperature heat pump 210, the rapid drying chamber 130 with a medium-temperature heat pump 210, and the deep drying chamber 140 with a low-temperature heat pump 210. Each of the high-temperature, medium-temperature, and low-temperature heat pumps 210 is equipped with an AM2301B temperature and humidity sensor and an AHS01IB absolute humidity sensor, which work in conjunction with a PLC controller for monitoring. A feed inlet 121 is formed on one side of the upper end of the pretreatment drying chamber 120, and a discharge outlet 141 is formed at the bottom of one end of the deep drying chamber 140. The feed inlet 121 is used for raw material input, and the discharge outlet 141 is used for raw material output.

[0029] The guide component 170 includes several rollers 171 and a servo motor 173. The rollers 171 are rotatably mounted inside the pretreatment drying chamber 120, the rapid drying chamber 130, and the deep drying chamber 140. A conveyor belt 172 is mounted on the rollers 171. The servo motor 173 is mounted on one side of the pretreatment drying chamber 120, the rapid drying chamber 130, and the deep drying chamber 140. The end of the output shaft of the servo motor 173 is connected to one of the rollers 171. Here, the servo motor 173 drives the rollers 171 to rotate, so that the conveyor belt 172 can follow the rotation and transfer the material.

[0030] The sealing element 180 includes a hopper 181 and a drive unit 183. The hopper 181 is fixed inside the connecting pipe 150. A sealing plate 182 is hinged to one side of the bottom of the hopper 181. The drive unit 183 is installed between the sealing plate 182 and the connecting pipe 150. The drive unit 183 includes two electric cylinders 1831. One end of each electric cylinder 1831 is rotatably connected to a second connecting seat 1833, which is fixed to the connecting pipe 150. The output ends of each electric cylinder 1831 are rotatably connected to a first connecting seat 1832, which is fixed to the sealing plate 182. The electric cylinders 1831 are electrically connected to a PLC controller and a time relay, which can control the electric cylinders 1831 to start and stop cyclically after a delay, thereby sealing the hopper 181 and maintaining the temperature of each drying chamber.

[0031] Please see Figures 1-3 The heat pump unit 200 includes three heat pumps 210 and air ducts 220. The three heat pumps 210 are mounted on the support frame 110 and are respectively connected to the pretreatment drying chamber 120, the rapid drying chamber 130 and the deep drying chamber 140 through the air ducts 220.

[0032] Specifically, the working principle of this segmented energy-saving heat pump drying device is as follows: During use, the raw material enters the pretreatment drying chamber 120 through the feed inlet 121. At this time, the heat pump 210 provides a heat source for the pretreatment drying chamber 120. Then, the servo motor 173 drives the roller shaft 171 and the conveyor belt 172 to rotate and convey the raw material. During the conveying process, the heat pump 210 performs pretreatment drying and conveys the raw material to the inside of the hopper 181. At this time, the electric cylinder 1831 is controlled by the PLC controller and the time relay to start cyclically and open the sealing plate 182 at intervals. This allows each drying chamber to be sealed and maintain the drying temperature. Then, the raw material is transferred to the rapid drying chamber 130 and the deep drying chamber 140 in sequence for drying treatment and is output through the discharge port 141. In this way, multiple heat pump units 200 can be used to dry the raw material at different stages and temperatures during the drying process, which is beneficial to reduce the load, improve the energy efficiency ratio and reduce energy consumption. At the same time, the multi-unit, multi-stage drying treatment can better meet the drying needs of different types of materials and improve adaptability.

[0033] It should be noted that the specific models and specifications of the servo motor 173, electric cylinder 1831, and heat pump 210 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0034] The power supply and operating principle of the servo motor 173, electric cylinder 1831 and heat pump 210 are clear to those skilled in the art and will not be described in detail here.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A segmentable energy-saving heat pump drying device, comprising a drying support structure (100) and a heat pump unit (200) mounted on the drying support structure (100), characterized in that, The drying support structure (100) includes a support frame (110), a connecting pipe (150), and a sealing element (180). A pretreatment drying chamber (120), a rapid drying chamber (130), and a deep drying chamber (140) are fixed sequentially on the support frame (110). The pretreatment drying chamber (120) and the rapid drying chamber (130) are connected through the connecting pipe (150), and the rapid drying chamber (130) and the deep drying chamber (140) are also connected through the connecting pipe (150). A flow guide (170) is installed inside the pretreatment drying chamber (120), the rapid drying chamber (130), and the deep drying chamber (140). A sealing element (180) is fixed inside the connecting pipe (150). The heat pump unit (200) includes three heat pumps (210) and air ducts (220). The three heat pumps (210) are mounted on the support frame (110). The three heat pumps (210) are respectively connected to the pretreatment drying chamber (120), the rapid drying chamber (130) and the deep drying chamber (140) through the air ducts (220).

2. The segmentable energy-saving heat pump drying device according to claim 1, characterized in that, The support frame (110) includes a plurality of support rods (111) and a support plate (113). The support plate (113) is fixed between the plurality of support rods (111). A crossbar (112) is fixed between the plurality of support rods (111). A pad (114) is fixed to the bottom of the support rods (111).

3. The segmentable energy-saving heat pump drying device according to claim 2, characterized in that, The pretreatment drying chamber (120), the rapid drying chamber (130) and the deep drying chamber (140) are fixed in sequence to the upper end of the support rod (111), and the three heat pumps (210) are all installed on the support plate (113).

4. The segmentable energy-saving heat pump drying device according to claim 1, characterized in that, The pretreatment drying chamber (120) has an inlet (121) on one side of its upper end, and the deep drying chamber (140) has an outlet (141) at the bottom of one end.

5. The segmentable energy-saving heat pump drying device according to claim 1, characterized in that, The guide component (170) includes a plurality of rollers (171) and a servo motor (173). The plurality of rollers (171) are rotatably mounted inside the pretreatment drying chamber (120), the rapid drying chamber (130) and the deep drying chamber (140). A conveyor belt (172) is mounted on the plurality of rollers (171). The servo motor (173) is mounted on one side of the pretreatment drying chamber (120), the rapid drying chamber (130) and the deep drying chamber (140). The end of the output shaft of the servo motor (173) is connected to one of the rollers (171).

6. The segmentable energy-saving heat pump drying device according to claim 5, characterized in that, The pretreatment drying chamber (120), the rapid drying chamber (130) and the deep drying chamber (140) are all fixed with guide rails (160), which are inclined to one side and slide on the surface of the conveyor belt (172).

7. The segmentable energy-saving heat pump drying device according to claim 1, characterized in that, The sealing element (180) includes a hopper (181) and a drive unit (183). The hopper (181) is fixed inside the connecting pipe (150). A sealing plate (182) is hinged to one side of the bottom of the hopper (181). The drive unit (183) is installed between the sealing plate (182) and the connecting pipe (150).

8. A segmentable energy-saving heat pump drying device according to claim 7, characterized in that, The drive unit (183) includes two electric cylinders (1831), one end of each of the two electric cylinders (1831) is rotatably connected to a second connecting seat (1833), the second connecting seat (1833) is fixed on the connecting pipe (150), and the output ends of the two electric cylinders (1831) are rotatably connected to a first connecting seat (1832), the first connecting seat (1832) is fixed on the sealing plate (182).

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