A high-temperature heat pump drying device for air source

Abstract

This utility model relates to the field of drying equipment technology and discloses an air-source high-temperature heat pump drying device, including an air-source heat pump component, an air supply duct, and a return air duct. An air intake fan is installed at the air inlet of the air-source heat pump component. A drying chamber is located on the right side of the air-source heat pump component. The air outlet of the air-source heat pump component is connected to the air inlet of the drying chamber via the air supply duct. A spiral guide vane is installed in the middle section of the air supply duct, and an electric proportional flow divider valve is installed at the bifurcation of the air supply duct. A baffle plate is installed above the drying chamber. In this utility model, by installing a spiral guide vane in the middle section of the air supply duct, the airflow can be disturbed, resulting in more uniform airflow mixing. The electric proportional flow divider valve installed at the bifurcation of the air supply duct can adjust the airflow according to the needs of different areas of the drying chamber. Combined with the baffle plate inside the drying chamber, this effectively improves the temperature uniformity of the drying chamber and ensures consistent drying results for clothing.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to an air source high-temperature heat pump drying device. Background Technology

[0002] Clothes drying is a common need in daily washing and care as well as in the finishing process of the textile and apparel industry. Traditional clothes drying equipment has long provided support for drying household clothes and drying finished garments after production, and is widely used in household scenarios and textile and apparel production scenarios.

[0003] However, traditional clothes drying equipment has many problems to be solved: on the one hand, the hot and humid air generated during the drying process is mostly discharged directly without recovering and utilizing the residual heat, resulting in a large amount of heat loss and energy waste; on the other hand, the airflow distribution is easily uneven during the transportation process in the air supply duct, resulting in large temperature differences in different areas of the drying chamber, which affects the uniformity of clothes drying. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an air-source high-temperature heat pump drying device that recycles the hot and humid air generated during clothing drying, reducing heat waste and saving energy.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an air source high-temperature heat pump drying device, comprising an air source heat pump component, an air supply duct, and a return air duct. An air inlet fan is installed at the air inlet of the air source heat pump component. A drying chamber is arranged on the right side of the air source heat pump component. The air outlet of the air source heat pump component is connected to the air inlet of the drying chamber through the air supply duct. A spiral guide vane is provided in the middle section of the air supply duct. An electric proportional flow divider valve is installed at the bifurcation of the air supply duct. A guide plate is installed above the drying chamber. The top of the drying chamber is connected to the return air inlet of the air source heat pump component through a return air duct. A T-joint is installed in the middle of the return air duct. One end of the T-joint is connected to the interior through a pipe. A dehumidification chamber is installed before the T-joint in the return air duct.

[0006] As a further description of the above technical solution: the air source heat pump assembly includes an evaporator, the output end of the evaporator is connected to a compressor, the output end of the compressor is connected to a condenser, the output end of the condenser is connected to a throttling device, the output end of the throttling device is connected to the input end of the evaporator, and a duct is coiled on the surface of the condenser.

[0007] As a further description of the above technical solution: an air supply fan is installed at the air inlet of the air supply duct.

[0008] As a further description of the above technical solution: a return air fan is installed at the air inlet of the return air duct.

[0009] As a further description of the above technical solution: a solar-powered heating plate is installed on the right side of the air intake fan.

[0010] As a further description of the above technical solution: the dehumidification chamber uses silica gel desiccant, and the dehumidification chamber is detachably connected to the return air duct and secured with clips.

[0011] As a further description of the above technical solution: Electric valve one and electric valve two are respectively installed at the two outlets of the tee joint.

[0012] As a further description of the above technical solution: the outer surfaces of both the air supply duct and the return air duct are wrapped with an insulation layer, and the insulation layer is made of rock wool.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by setting a spiral guide vane in the middle section of the air supply duct, the airflow can be disturbed, making the airflow more uniform; by installing an electric proportional flow divider valve at the bifurcation of the air supply duct, the air volume can be adjusted according to the needs of different areas of the drying chamber. Combined with the guide plate in the drying chamber, the temperature uniformity of the drying chamber is effectively improved, ensuring consistent drying effect for clothes.

[0015] 2. In this utility model, by setting a solar-powered heating plate at the air inlet of the air source heat pump component, the incoming air can be preheated, directly reducing the heating load of the heat pump component and reducing power consumption. At the same time, the top of the drying chamber is connected to the return air port of the heat pump component through a return air duct, which, together with the return air fan, forms an air circulation, avoiding the heat loss caused by the direct discharge of hot and humid air by traditional equipment. The rock wool insulation layer wrapped around the hot air delivery and return air ducts can further reduce heat loss in the ducts and maintain a stable air temperature.

[0016] 3. In this utility model, the electric valve at the three-way connector can be linked with the indoor temperature sensor. When the indoor temperature is below 10℃, the dehumidified residual heat air is discharged into the room to assist in heating, realizing the multi-scenario utilization of energy for drying and heating. In addition, the dehumidification chamber on the return air duct is filled with silica gel desiccant, which can efficiently absorb the moisture in the hot and humid return air, preventing high humidity air from circulating into the air source heat pump components and causing damage to the components. At the same time, the detachable buckle design makes it easy to replace the dehumidification chamber, ensuring long-term dehumidification effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an air-source high-temperature heat pump drying device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the hot air flow path in an air-source high-temperature heat pump drying device proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the air source heat pump component structure of an air source high-temperature heat pump drying device proposed in this utility model;

[0020] Figure 4 This is a schematic diagram illustrating the practical application of an air-source high-temperature heat pump drying device proposed in this utility model.

[0021] Legend:

[0022] 1. Air source heat pump assembly; 101. Evaporator; 102. Compressor; 103. Condenser; 104. Throttling device; 2. Drying chamber; 3. Inlet fan; 4. Heating plate; 5. Baffle plate; 6. Dehumidification chamber; 7. Electric valve one; 8. Electric valve two; 9. Return air fan; 10. Supply air fan; 11. Supply air duct; 12. Return air duct; 13. T-joint; 14. Spiral guide vane; 15. Electric proportional flow divider valve. Detailed Implementation

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

[0024] Reference Figure 1-4This utility model provides an embodiment of an air-source high-temperature heat pump drying device, comprising an air-source heat pump assembly 1, an air supply duct 11, and a return air duct 12. An air intake fan 3 is installed at the air inlet of the air-source heat pump assembly 1 to draw in external air. A drying chamber 2 is located on the right side of the air-source heat pump assembly 1 to accommodate items to be dried. The air outlet of the air-source heat pump assembly 1 is connected to the air inlet of the drying chamber 2 via the air supply duct 11 to deliver heated air to the drying chamber 2. A spiral guide vane 14 is installed in the middle section of the air supply duct 11 to agitate the airflow and make the airflow more uniformly mixed. An electric proportional flow divider valve 15 is installed at the bifurcation of the air supply duct 11. The electric proportional flow divider valve 15, in conjunction with temperature sensors evenly distributed within the drying chamber 2, can adjust the airflow according to the temperature changes in the drying chamber 2. The airflow is adjusted according to the temperature requirements of the area; a guide plate 5 is installed above the drying chamber 2, which can guide the hot air to be evenly distributed in the drying chamber 2, improving the drying uniformity; the top of the drying chamber 2 is connected to the return air port of the air source heat pump component 1 through the return air duct 12 to realize the recycling of humid and hot air; a T-joint 13 is installed in the middle of the return air duct 12, one end of the T-joint 13 is connected to the room through a pipe, and a dehumidification chamber 6 is installed before the T-joint 13 in the return air duct 12; the humid and hot air generated after drying clothes flows back through the return air duct 12, first passes through the dehumidification chamber 6 to remove moisture, and avoids high humidity air circulating into the air source heat pump component 1 and causing damage to the components, and then selects a path through the T-joint 13 (returning to the air source heat pump component 1 for recycling or being discharged into the room for heating), reducing heat waste.

[0025] Specifically, the air source heat pump assembly 1 includes an evaporator 101, the output end of the evaporator 101 is connected to a compressor 102, the output end of the compressor 102 is connected to a condenser 103, the output end of the condenser 103 is connected to a throttling device 104, the output end of the throttling device 104 is connected to the input end of the evaporator 101, and a duct is coiled on the surface of the condenser 103.

[0026] The air source heat pump assembly 1 operates according to the reverse Carnot cycle principle. The evaporator 101 absorbs low-grade heat from the outside air or return air, causing the internal low-pressure liquid refrigerant to vaporize into a low-pressure gaseous state. The compressor 102 compresses the low-pressure gaseous refrigerant into a high-pressure, high-temperature gaseous state through mechanical work. In the condenser 103, the high-pressure, high-temperature gaseous refrigerant releases heat, heating the cold air in the duct swirling on its surface into hot air, while the refrigerant condenses into a high-pressure liquid state. The throttling device 104 reduces the pressure and temperature of the high-pressure liquid refrigerant into a low-pressure liquid state, which then flows back to the evaporator 101 to complete the cycle. As the cold air in the duct flows over the surface of the condenser 103, it continuously absorbs the heat released by the refrigerant, increasing its temperature and becoming hot air, thus achieving the heating effect of cold air in and hot air out.

[0027] Specifically, an air supply fan 10 is installed at the air inlet of the air supply duct 11 to enhance the power of hot air delivery in the air supply duct 11, accelerate the flow speed of hot air in the air supply duct 11, overcome the pipe resistance, improve the efficiency of hot air delivery to the drying chamber 2, ensure that the drying chamber 2 can quickly obtain sufficient hot air, shorten the preheating time of clothes, and improve the drying efficiency.

[0028] Specifically, a return air fan 9 is installed at the air inlet of the return air duct 12. The return air fan 9 accelerates the humid and hot air in the drying chamber 2 into the return air duct 12 through suction, overcomes the return flow resistance, enhances the return flow power of the humid and hot air in the return air duct 12, promotes air circulation, reduces the residence time of humid and hot air in the drying chamber 2, improves the return air utilization rate, and reduces heat waste.

[0029] Specifically, a solar-powered heating plate 4 is installed on the right side of the air intake fan 3. The heating plate 4 is powered by the electricity generated by the solar energy to preheat the incoming fresh air, thereby reducing the energy consumption of the air source heat pump component 1. When not performing drying operations, the electricity generated by the solar energy can be used for daily power supply, saving energy.

[0030] Specifically, the dehumidification chamber 6 is equipped with silica gel desiccant, which has strong water absorption properties and can physically adsorb moisture from the humid and hot air in the return air duct 12. The dehumidification chamber 6 and the return air duct 12 are detachably connected by a drawer-type structure and secured with clips. The clip connection and drawer-type structure allow the dehumidification chamber 6 to be quickly removed from the return air duct 12, enabling convenient replacement of the dehumidification chamber 6 and maintaining the stability of the dehumidification effect. This avoids the problem of dehumidification failure caused by the inability to replace the dehumidification chamber 6 in time after it becomes saturated, ensuring the long-term stable operation of the equipment.

[0031] Specifically, electric valve 7 and electric valve 8 are installed at the two outlets of the three-way connector 13, respectively. By controlling the opening and closing of the valves, the direction of the return air is selected (circulated back to the air source heat pump assembly 1 or discharged to the room for heating). The opening and closing of the valves are controlled by the indoor temperature sensor. When the indoor temperature sensor detects that the indoor temperature is below 10°C, electric valve 7 closes and electric valve 8 opens, discharging the waste heat air to the room for auxiliary heating. Conversely, when the indoor temperature sensor detects that the indoor temperature is above 10°C, electric valve 7 opens and electric valve 8 closes, circulating the waste heat air back to the air source heat pump assembly 1 to preheat the new air intake and improve the heat utilization rate.

[0032] Specifically, the outer surfaces of both the supply air duct 11 and the return air duct 12 are covered with an insulation layer made of rock wool. Rock wool has low thermal conductivity, which can block the heat exchange between the air inside the duct and the external environment, reduce the temperature drop of the hot air during the transportation process, and maintain a stable air temperature; ensure that the temperature of the hot air entering the drying chamber 2 meets the standard, avoid the decrease in drying efficiency due to heat loss; and reduce the extra energy consumption of the heat pump due to the need to make up for heat loss.

[0033] Working Principle: When using this invention, first start the intake fan 3, the supply fan 10, the return fan 9, and the air source heat pump assembly 1. The intake fan 3 draws in ambient air, which is preheated to 25-35°C as it flows through the heating plate 4. The preheated air enters the evaporator 101 side of the air source heat pump assembly 1, providing a heat source for the refrigerant in the evaporator 101. The low-pressure liquid refrigerant in the evaporator 101 absorbs heat from the air and vaporizes into a low-pressure gaseous refrigerant, which is then drawn into the compressor 102. The compressor 102 performs work on the low-pressure gaseous refrigerant, converting it into a liquid refrigerant that is heated by the air. It is compressed into a high-pressure, high-temperature gaseous refrigerant and discharged into the condenser 103. The high-pressure, high-temperature gaseous refrigerant releases heat in the condenser 103. The air (i.e., the cold air to be heated) swirling in the duct on the surface of the condenser absorbs the heat and is heated to 50-70°C. The heated air enters the air supply duct 11 under the action of the blower 10. After being disturbed and mixed by the spiral guide vane 14 and the air volume is adjusted by the electric proportional flow divider valve 15, it enters the drying chamber 2. After being evenly distributed by the guide plate 5, it exchanges heat with the clothes to be dried in the drying chamber 2, removes the moisture from the clothes, and becomes humid and hot air.

[0034] The return air fan 9 draws the hot and humid air from the drying chamber 2 into the return air duct 12. The air first flows through the dehumidification chamber 6, where the moisture in the hot and humid air is absorbed by the silica gel desiccant, reducing the relative humidity. The dehumidified air then flows to the three-way connector 13, where it switches paths based on the indoor temperature sensor's readings: If the indoor temperature is ≤10℃, electric valve 2 8 opens and electric valve 1 7 closes, allowing the residual heat air to be discharged into the room for auxiliary heating, thus utilizing the residual heat; if the indoor temperature is >10℃, electric valve 1 7 opens and electric valve 2 8 closes, allowing the air to flow back to the return air inlet of the air source heat pump assembly 1. After mixing with the fresh air from outside, the air re-enters the evaporator 101 side to participate in the heating cycle. Rock wool outside the supply air duct 11 and the return air duct 12 reduces heat loss from the air inside the ducts.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. An air-source high-temperature heat pump drying device, comprising an air-source heat pump assembly (1), an air supply duct (11), and a return air duct (12), characterized in that: An air inlet fan (3) is installed at the air inlet of the air source heat pump assembly (1). A drying chamber (2) is provided on the right side of the air source heat pump assembly (1). The air outlet of the air source heat pump assembly (1) is connected to the air inlet of the drying chamber (2) through an air supply pipe (11). A spiral guide vane (14) is provided in the middle section of the air supply pipe (11). An electric proportional flow divider valve (15) is installed at the bifurcation of the air supply pipe (11). A guide plate (5) is installed above the drying chamber (2). The top of the drying chamber (2) is connected to the return air inlet of the air source heat pump assembly (1) through a return air pipe (12). A three-way connector (13) is installed in the middle of the return air pipe (12). One end of the three-way connector (13) is connected to the room through a pipe. A dehumidification chamber (6) is installed before the three-way connector (13) in the return air pipe (12).

2. The air-source high-temperature heat pump drying equipment according to claim 1, characterized in that: The air source heat pump assembly (1) includes an evaporator (101), the output end of which is connected to a compressor (102), the output end of which is connected to a condenser (103), the output end of which is connected to a throttling device (104), the output end of which is connected to the input end of the evaporator (101), and a duct is coiled on the surface of the condenser (103).

3. The air-source high-temperature heat pump drying equipment according to claim 1, characterized in that: The air inlet of the air supply duct (11) is equipped with an air supply fan (10).

4. The air-source high-temperature heat pump drying equipment according to claim 1, characterized in that: The return air duct (12) is equipped with a return air fan (9) at its air inlet.

5. The air-source high-temperature heat pump drying equipment according to claim 1, characterized in that: A solar-powered heating plate (4) is installed on the right side of the air intake fan (3).

6. The air-source high-temperature heat pump drying equipment according to claim 1, characterized in that: The dehumidification chamber (6) is equipped with silica gel desiccant. The dehumidification chamber (6) is detachably connected to the return air duct (12) and is secured with a buckle.

7. The air-source high-temperature heat pump drying equipment according to claim 1, characterized in that: The two outlets of the tee joint (13) are respectively equipped with electric valve one (7) and electric valve two (8).

8. The air-source high-temperature heat pump drying equipment according to claim 1, characterized in that: The outer surfaces of the air supply duct (11) and the return air duct (12) are both covered with an insulation layer, and the insulation layer is made of rock wool.

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