Efficient dehumidifier

Abstract

The utility model discloses an efficient dehumidifier, and relates to the technical field of medium indirect contact type heat exchange equipment, in particular to dehumidification treatment. According to the technical scheme, the efficient dehumidifier comprises a heat exchanger and an air duct system, a pre-evaporator, an evaporator and a condenser are arranged in the air duct system, the pre-evaporator is arranged at the air inlet end of the air duct system, the evaporator is located in the middle of the air duct system, and the condenser is located at the rear end of the air duct system. The pre-evaporator, the evaporator and the condenser are all connected with the heat exchanger. The problems of loud noise, high energy consumption, waste of cooling capacity of condensate water and the like are solved, and the purposes of high dehumidification efficiency, energy conservation, environmental protection, low noise and guarantee of recovery of condensate water and efficient utilization of refrigerants are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medium indirect contact heat exchange equipment, in particular to dehumidification treatment. Background Art

[0002] Conventional dehumidification processes rely on air source heat pump systems to extract heat from products, and are particularly widely used in the field of drying and dehumidification. They are also used in the fields of heating, cooling, cold storage, and cooling. The heat pump dehumidification system in the prior art generally uses an evaporator for dehumidification cycles. The dehumidification efficiency of the unit is low, and the dehumidifier makes a lot of noise during dehumidification, which seriously affects the quality of the surrounding environment. The application of existing dehumidifiers in energy-saving technologies mainly focuses on the low-temperature air discharged from the evaporator and the recovery of cold. For example, it is used to dissipate heat from the condenser. For example, the Chinese patent with publication number CN211739341U discloses a high-efficiency heat pipe energy-saving dehumidifier and provides the following technical solution. The utility model relates to a high-efficiency heat pipe energy-saving dehumidifier, which belongs to the technical field of heat pump drying and dehumidification, including a lower heat pipe heat exchanger, an evaporator, an upper heat pipe heat exchanger and a condenser. The lower heat pipe heat exchanger and the upper heat pipe heat exchanger form a closed heat pipe system. The lower end of the lower heat pipe heat exchanger is connected to the lower end of the upper heat pipe heat exchanger, and the upper end of the lower heat pipe heat exchanger is connected to the upper heat pipe heat exchanger. The upper end of the heat exchanger is connected, the air inlet of the lower heat pipe heat exchanger is connected to the system air supply port, the air outlet of the lower heat pipe heat exchanger is connected to the air inlet of the evaporator, the air outlet of the evaporator is connected to the air inlet of the upper heat pipe heat exchanger through the cold air duct, the air outlet of the upper heat pipe heat exchanger is connected to the air inlet of the condenser, the air outlet of the condenser is connected to the hot air duct, the other end of the hot air duct is connected to the air inlet of the dehumidification fan, and the air outlet of the dehumidification fan is connected to the exhaust port of the system, with the help of the heat pipe system, heat exchange without power consumption is realized, and the dehumidification efficiency of the unit is improved. However, in a high-efficiency heat pipe energy-saving dehumidifier with the above structure, the dehumidified condensed water is directly discharged to the water tank, but the temperature of this part of the water is much lower than the air temperature, so this part of the cooling capacity is wasted, resulting in an increase in the demand for compressor cooling capacity, thereby increasing noise and energy consumption. Utility Model Content

[0003] In response to the problems of high noise, high energy consumption, and waste of condensed water cooling capacity mentioned in the background technology, the utility model proposes a high-efficiency dehumidifier, which achieves the purposes of high dehumidification efficiency, energy saving and environmental protection, low noise, and ensuring the recovery of condensed water and efficient utilization of refrigerant.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-efficiency dehumidifier, comprising: a heat exchanger and an air duct system, wherein the air duct system is provided with a pre-evaporator, an evaporator and a condenser, the pre-evaporator is arranged at the air inlet end of the air duct system, the evaporator is located in the middle of the air duct system, the condenser is located at the rear end of the air duct system, and the pre-evaporator, the evaporator and the condenser are all connected to the heat exchanger.

[0005] The advantage of this design is that the cooling capacity of the condensed water is utilized through a well-planned air duct system and connected heat exchangers. For the same dehumidification capacity, the system consumes less energy, making the whole machine more energy-efficient and achieving efficient heat exchange and dehumidification effects.

[0006] Preferably, a condensate flow channel and a refrigerant flow channel are provided inside the heat exchanger, a condensate flow channel is provided with a condensate inlet at one end, and a condensate outlet at the other end, the condensate outlet is connected to the pre-evaporator, and the condensate flow channel and the refrigerant flow channel do not flow with each other.

[0007] The advantage of this design is that by separating the condensate flow channel and the refrigerant flow channel, mutual interference between the two can be avoided, thereby improving the dehumidification efficiency and system stability.

[0008] Preferably, a water receiving pan is installed below the evaporator, the water receiving pan is conical, and the bottom is connected to the condensed water inlet.

[0009] The advantage of this design is that the conical structure of the water tray can effectively collect condensed water and guide it to the water inlet, thereby improving the dehumidification efficiency.

[0010] Preferably, a refrigerant inlet is provided at one end of the refrigerant flow channel, and a refrigerant outlet is provided at the other end, the refrigerant inlet is connected to the condenser, and the refrigerant outlet is connected to the evaporator via a throttling device.

[0011] The advantage of this design is that the flow rate of the refrigerant in the evaporator can be adjusted through the control of the throttling device to achieve a more precise dehumidification effect and energy-saving goals.

[0012] Preferably, one end of the pre-evaporator is connected to the condensed water outlet, and the other end is connected to a water collecting tank.

[0013] The advantage of this design is that the pre-evaporator can use the cold energy in the condensed water to pre-cool in advance, thereby increasing the dehumidification efficiency and reducing energy consumption.

[0014] Preferably, a compressor is provided next to the water collecting tank, one end of the compressor is connected to the condenser via a refrigerant inlet pipe, and the other end of the compressor is connected to the evaporator via a refrigerant outlet pipe.

[0015] Preferably, the heat exchanger, the water collecting tank and the compressor are separated from the air duct system by a partition.

[0016] The advantage of this design is that, through the setting of partitions, the interference of heat exchangers, water collecting tanks and compressors on the air duct system can be avoided, thereby improving the overall performance of the dehumidifier.

[0017] Preferably, the condensate flow channel and the refrigerant flow channel are both spiral structures.

[0018] The advantage of this design is that the spiral condensate flow channel and refrigerant flow channel can increase the surface area of ​​heat exchange and improve the dehumidification efficiency of the dehumidifier.

[0019] Preferably, a fan assembly is arranged behind the condenser.

[0020] Compared with the prior art, the utility model has the following beneficial effects.

[0021] 1. The high-efficiency dehumidifier designed in this utility model adopts a rationally arranged air duct system and a newly designed heat exchanger, which fully utilizes the cooling capacity of condensed water to achieve less energy consumption under the same dehumidification capacity, thereby greatly improving energy utilization efficiency and achieving the purpose of energy saving.

[0022] 2. The pre-evaporator reduces the amount of condensed water in the main evaporator by pre-evaporating part of the water in the air to be treated, thereby improving the dehumidification effect. It also makes the dehumidifier more adaptable to work in high humidity environments, effectively avoiding overload of the main evaporator and overflow of condensed water. The pre-evaporator can evaporate the water in the air in advance, reducing the load of the main evaporator and extending its service life.

[0023] 3. The water tray in the design adopts a conical structure, which effectively collects condensed water and guides it to the water inlet, greatly improving the dehumidification efficiency. In addition, by controlling the flow rate of the refrigerant in the evaporator through the throttling device, a more precise dehumidification effect and energy-saving goals can be achieved, making the entire system more intelligent and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a schematic diagram of the overall structure of an embodiment.

[0025] Figure 2 The figure is a schematic diagram of the internal structure of an embodiment of the utility model.

[0026] Figure 3 The figure is a schematic diagram of the internal structure of a heat exchanger according to an embodiment of the utility model.

[0027] Illustration: fan assembly 1, condenser 2, throttling device 3, evaporator 4, water receiving tray 5, heat exchanger 6, condensate water inlet 6.1, refrigerant inlet 6.2, refrigerant flow channel 6.3, refrigerant outlet 6.4, condensate water outlet 6.5, partition 7, pre-evaporator 8, water collecting tank 9. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the accompanying drawings. The proportions of the components are not drawn according to the actual proportions, and the proportions and sizes shown in the accompanying drawings should not limit the substantial technical scheme of the present utility model. These embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific embodiments described.

[0029] See also Figure 1-3 As shown, a high-efficiency dehumidifier includes: a heat exchanger and an air duct system, wherein a pre-evaporator 8, an evaporator 4 and a condenser 2 are provided in the air duct system, the pre-evaporator 8 is arranged at the air inlet end of the air duct system, the evaporator 4 is located in the middle of the air duct system, the condenser 2 is located at the rear end of the air duct system, and the pre-evaporator 8, the evaporator 4 and the condenser 2 are all connected to the heat exchanger 6.

[0030] The application of energy-saving technology in existing dehumidifiers is mainly focused on the low-temperature air discharged from the evaporator and the recovery of cold energy. For example, it is used to dissipate heat from the condenser. The water condensed by dehumidification is often discharged directly into the water tank, but the water temperature is usually lower than the air temperature, so this part of the cold energy is wasted. The high-efficiency dehumidifier designed by the utility model adopts a rationally arranged air duct system and a newly designed heat exchanger to fully utilize the cold energy of the condensed water and achieve less energy consumption under the same dehumidification capacity, thereby greatly improving energy utilization efficiency and achieving the purpose of energy saving. The pre-evaporator utilizes the cold energy of the condensed water and reduces the amount of condensed water in the main evaporator by pre-evaporating a part of the water in the air to be treated, thereby improving the dehumidification effect. It also enables the dehumidifier to be more adaptable to work in a high humidity environment, effectively avoiding overload of the main evaporator and overflow of condensed water. The pre-evaporator can evaporate the moisture in the air in advance, reducing the load of the main evaporator and extending its service life.

[0031] like Figure 1 The embodiment shown is a schematic diagram of the overall structure of an embodiment of the utility model.

[0032] The utility model designs an efficient dehumidifier built in a carefully designed system, which is mainly composed of a heat exchanger and an air duct system. Three key components are carefully arranged inside the air duct system: a pre-evaporator 8, an evaporator 4 and a condenser 2. These components are located at different positions of the air duct system to maximize the dehumidification efficiency. The pre-evaporator 8 is located at the inlet end of the air duct system, and its main function is to preliminarily cool and dehumidify the incoming wet air. Then, the air flows to the evaporator 4 in the middle of the system, where the air is further cooled and the humidity is greatly reduced. A water receiving tray 5 is installed under the evaporator 4, which is designed to be conical to collect condensed water more effectively.

[0033] The condenser 2 is located at the end of the air duct system and is responsible for reheating the dehumidified and cooled air to prevent the dehumidifier from exhausting wet and cold air and affecting the environmental comfort. The condenser 2, the pre-evaporator 8 and the evaporator 4 are all connected to the heat exchanger 6, so that the heat exchange process is carried out efficiently between these components.

[0034] The heat exchanger 6 is connected to the evaporator 4 through the throttling device 3, so that the amount of refrigerant flowing to the evaporator can be accurately controlled, thereby adjusting the dehumidification capacity. One end of the pre-evaporator 8 is connected to the heat exchanger 6, and the other end is connected to the water collecting tank 9, which collects the water cooled by the evaporator. . Through the heat exchanger, the condensed water is transmitted to the pre-evaporator, and the cold capacity in the condensed water is not wasted. By pre-evaporating a part of the water in the air to be treated, the amount of condensed water in the evaporator 4 is reduced, and the dehumidification efficiency of the whole system is significantly improved. In this design, the pre-evaporator 8 not only reduces the burden of the main evaporator 4 and prevents overload operation, but also effectively avoids the problem of condensed water overflowing from the main evaporator 4 when processing high-humidity air. This means that the dehumidifier can better adapt to the high-humidity environment, ensure continuous and stable operation, and also extend the service life.

[0035] The heart of the dehumidifier, the compressor, is located next to the water collecting tank 9. The compressor is connected to the condenser 2 through the refrigerant inlet pipe and to the evaporator 4 through the refrigerant outlet pipe. The function of the compressor is to circulate and push the refrigerant, thereby maintaining the cooling and dehumidification process of the entire system. In order to ensure the efficiency of air flow, the heat exchanger 6, the water collecting tank 9 and the compressor are separated from the air duct system by the partition 7. This design not only maintains the independence between the components, but also ensures that the air flow can be effectively processed by the necessary components. Finally, there is a fan assembly 1 behind the condenser 2, which is responsible for pushing the air through the entire system to ensure the continuity and stability of the air flow. The design of this system not only improves the dehumidification efficiency, but also ensures the economy of operation and the comfort of the user.

[0036] like Figure 2 In one embodiment shown, Figure 2This is a schematic diagram of the internal structure of an embodiment of the utility model. The working principle and process of this high-efficiency dehumidifier are as follows:

[0037] First, when the humid air enters the device, it first passes through the pre-evaporator 8 located at the inlet end of the air duct system. In the pre-evaporator 8, part of the moisture in the air is pre-evaporated using the cooling capacity of the condensed water generated by the condenser 2. This pre-treatment not only reduces the amount of humidity that needs to be processed by the subsequent evaporator 4, but also indirectly reduces the energy consumption of the evaporator 4, because the humidity of the processed air is reduced, and the required cooling energy is also reduced.

[0038] The air after pre-evaporation then flows to the evaporator 4 in the middle of the air duct system, where the air is further cooled by the refrigerant and the humidity is greatly reduced. Since the efficiency of the evaporator 4 is improved by the pre-evaporator 8, the remaining moisture in the air can be removed more efficiently. The conical water tray 5 below the evaporator 4 is designed to collect the moisture cooled by the evaporator 4 to ensure that the condensed water is properly handled and avoid waste.

[0039] After the air flows through the evaporator 4, it will enter the condenser 2 located at the end of the air duct system. At this stage, the air will be reheated to prevent the dehumidifier from exhausting cold air, which will affect the comfort of the environment. The role of the condenser 2 also helps to maintain the balance of indoor temperature and ensure the user's comfortable experience. In the entire dehumidification process, the heat exchanger 6 plays a vital role. Through the heat exchange between the pre-evaporator 8, the evaporator 4 and the condenser 2, the energy of the system is fully utilized and the energy consumption is reduced. The condensed water is not wasted in this process, but its coldness is recovered through the heat exchanger 6 and used for the pre-cooling process of the pre-evaporator 8. The core component of the dehumidifier, the compressor, is located next to the water collecting tank 9 and is connected to the evaporator 4 and the condenser 2 through the refrigerant pipeline. The function of the compressor is to circulate and push the refrigerant so that it flows between the evaporator 4 and the condenser 2 to maintain the cooling and dehumidification process of the entire system.

[0040] In order to improve the efficiency of air flow and ensure the independent operability of each component, the heat exchanger 6, the water collecting tank 9 and the compressor are separated from the air duct system by the partition 7. This not only maintains the heat exchange efficiency between the components, but also ensures that the air can flow through these key processing units effectively. Finally, the fan component located behind the condenser 2 has the task of pushing the air through the entire system, thereby ensuring the continuity and stability of the air flow. Through such a design, this high-efficiency dehumidifier can provide a comfortable indoor environment while maximizing energy conservation and improving dehumidification efficiency.

[0041] like Figure 3In one embodiment shown, there is a schematic diagram of the internal structure of a heat exchanger of an embodiment of the utility model. The device includes a heat exchanger 6 as a central component, which is provided with two flow channels: a condensate flow channel and a refrigerant flow channel 6.3, which are designed to ensure that the two fluids can exchange heat but not directly mix. This design allows the system to work efficiently without the problem of cross-contamination of substances. The process of the condensate part starts at the evaporator 4, where the air is cooled and the water vapor condenses into water droplets, which are then collected in the water receiving tray 5 at the bottom. The water receiving tray 5 is conical, and the design allows the water to naturally converge to the bottom and flow into the condensate flow channel through the condensate inlet 6.1.

[0042] In the condensate flow channel, the water flows in a spiral structure, which greatly increases the contact surface area with the refrigerant flow channel 6.3. Since the condensate flow channel and the refrigerant flow channel 6.3 do not circulate with each other, heat exchange occurs at the interface between the two. When the condensate flows in its flow channel, it transfers heat to the adjacent refrigerant flow channel 6.3. After the refrigerant completes its cyclic cooling process in the condenser 2, it enters the refrigerant flow channel 6.3 through the refrigerant inlet 6.3. Here, the refrigerant receives heat from the condensate, so that the refrigerant is heated and moves upward with the spiral. In this process, the refrigerant changes from liquid to gas, and finally leaves the heat exchanger 6 through the refrigerant outlet 6.4 and enters the throttling device 3, where the pressure is reduced, thereby reducing the temperature, and then enters the evaporator 4 to restart the cooling cycle.

[0043] The condensed water from the heat exchanger 6 flows into the pre-evaporator 8 through the condensed water outlet 6.5. In the pre-evaporator 8, the condensed water will further cool the warm and humid air entering the system, thereby reducing the humidity and temperature of the air in advance, so that the evaporator 4 can remove moisture more effectively. The condensed water passing through the pre-evaporator 8 becomes warm due to absorbing heat from the air, and then flows into the water collecting tank 9 to complete its circulation in the system.

[0044] Therefore, this carefully designed system maximizes energy efficiency, reduces operating costs and ensures efficient and stable operation of the system by utilizing the principle of heat exchange.

[0045] The heat exchanger 6 plays a vital role in this high-efficiency dehumidifier. Its working principle is based on the principle of heat exchange, that is, through the heat exchange between the condensate flow channel and the refrigerant flow channel 6.3, the efficiency of the entire system is improved. The specific process is as follows:

[0046] When the conical water receiving pan 5 below the evaporator 4 collects the condensed water cooled by the evaporator 4, the water enters the heat exchanger 6 through the condensed water inlet 6.1 connected to the bottom of the water receiving pan. Inside the heat exchanger 6, the condensed water flow channel is designed as a spiral structure, which can not only increase the contact area when the water flows through, thereby improving the heat exchange efficiency, but also generate micro turbulence due to the change in flow rate, further promoting heat transfer.

[0047] When the condensed water flows in the flow channel, it will exchange heat with the spiral refrigerant flow channel 6.3, but the two fluids do not circulate with each other, ensuring the safety and stability of the system. The refrigerant flow channel 6.3 receives the preheated refrigerant from the condenser 2 and enters the heat exchanger 6 through the refrigerant inlet 6.3. When passing through the spiral refrigerant flow channel 6.3 inside the heat exchanger 6, the refrigerant will absorb the heat of the condensed water flowing in the condensed water flow channel. In this way, the condensed water gradually cools down in the process of flowing to the pre-evaporator 8, while the refrigerant heats up due to the heat absorption.

[0048] The heated refrigerant flows out of the heat exchanger 6 and flows to the throttling device 3 through the refrigerant outlet 6.4, where the pressure is reduced and the temperature is reduced, and then enters the evaporator 4 to start a new round of cooling cycle. At this time, the cooled condensed water flows to the pre-evaporator 8 through the condensed water outlet 6.5.

[0049] In the pre-evaporator 8, the condensed water will absorb part of the heat in the hot air entering the dehumidifier, reducing the air humidity in advance, which helps to improve the dehumidification efficiency of the evaporator 4, because the temperature of the wet air facing the evaporator 4 has been reduced by the pre-evaporator 8. In addition, this also indirectly reduces the cooling energy required by the evaporator 4, achieving energy efficiency optimization. Finally, the condensed water treated by the pre-evaporator 8 rises in temperature due to heat absorption and flows to the water collection tank 9 to be discharged or further recycled.

[0050] Through such a design, the heat exchanger 6 not only realizes effective heat exchange between the condensed water and the refrigerant, but also improves the performance of the pre-evaporator 8 by cooling the condensed water, and the energy efficiency of the entire system is significantly improved. This cyclic operation of the heat exchange process ensures that the dehumidifier can operate continuously and stably, while reducing energy consumption and improving the overall dehumidification efficiency.

[0051] The present invention is not limited to the above-mentioned embodiments. Regardless of any changes in shape or material composition, any structural design provided by the present invention is a variation of the present invention and should be considered within the protection scope of the present invention.

Claims

1. A high-efficiency dehumidifier, characterized in that: include: A heat exchanger and an air duct system, wherein a pre-evaporator (8), an evaporator (4) and a condenser (2) are provided in the air duct system, the pre-evaporator (8) is arranged at the air inlet end of the air duct system, the evaporator (4) is located in the middle of the air duct system, and the condenser (2) is located at the rear end of the air duct system, and the pre-evaporator (8), the evaporator (4) and the condenser (2) are all connected to the heat exchanger (6).

2. A high-efficiency dehumidifier according to claim 1, characterized in that: A condensate flow channel and a refrigerant flow channel (6.3) are provided inside the heat exchanger (6); a condensate water inlet (6.1) is provided at one end of the condensate flow channel, and a condensate water outlet (6.5) is provided at the other end; the condensate water outlet (6.5) is connected to the pre-evaporator (8); the condensate flow channel and the refrigerant flow channel (6.3) do not flow with each other.

3. A high-efficiency dehumidifier according to claim 2, characterized in that: A water receiving tray (5) is installed below the evaporator (4); the water receiving tray (5) is conical, and the bottom is connected to the condensed water inlet (6.1).

4. A high-efficiency dehumidifier according to claim 2 or 3, characterized in that: A refrigerant inlet (6.2) is provided at one end of the refrigerant flow channel (6.3), and a refrigerant outlet (6.4) is provided at the other end. The refrigerant inlet (6.2) is connected to the condenser (2), and the refrigerant outlet (6.4) is connected to the evaporator (4) via a throttling device (3).

5. A high-efficiency dehumidifier according to claim 4, characterized in that: One end of the pre-evaporator (8) is connected to the condensed water outlet (6.5), and the other end is connected to the water collecting tank (9).

6. A high-efficiency dehumidifier according to claim 5, characterized in that: A compressor is provided next to the water collecting tank (9), one end of the compressor is connected to the condenser (2) via a refrigerant inlet pipe, and the other end is connected to the evaporator (4) via a refrigerant outlet pipe.

7. A high-efficiency dehumidifier according to claim 5 or 6, characterized in that: The heat exchanger (6), the water collecting tank (9), and the compressor are all separated from the air duct system by a partition (7).

8. The high-efficiency dehumidifier according to claim 4, characterized in that: The condensate flow channel and the refrigerant flow channel (6.3) are both spiral structures.

9. A high-efficiency dehumidifier according to claim 1, 2 or 3, characterized in that: A fan assembly (1) is provided behind the condenser (2).

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