Low-energy precision low-temperature dehumidifier system

Abstract

This utility model relates to the technical field of air dehumidification systems, specifically disclosing a low-energy, precision-controlled low-temperature dehumidifier system. The system includes a dehumidification channel, heat pipes, an evaporator, a condenser, a compressor, an expansion valve, a heat exchanger, a low-temperature storage tank, a first pump body, a first valve body, a second pump body, and a second valve body. The heat pipes include a heat-absorbing section and a heat-releasing section. The heat-absorbing section, evaporator, heat-releasing section, and condenser are sequentially arranged within the dehumidification channel along the gas flow direction. The heat exchanger has a first heat exchange channel and a second heat exchange channel that can exchange heat with each other. One end of the first heat exchange channel, the compressor, the condenser, the expansion valve, and the other end of the first heat exchange channel are sequentially connected. One end of the second heat exchange channel, the low-temperature storage tank, the first valve body, the first pump body, and the other end of the second heat exchange channel are sequentially connected. The evaporator, the low-temperature storage tank, the second valve body, and the second pump body are sequentially connected. This utility model simplifies the control method of evaporator refrigeration and reduces manufacturing costs.

Description

Technical Field

[0001] This utility model relates to the field of air dehumidification system technology, and in particular to a low-energy-consumption, precision-controlled, low-temperature dehumidifier system. Background Technology

[0002] Special locations such as laboratories and high-precision manufacturing workshops often require humidity control. Existing technologies typically employ cooling dehumidification to reduce humidity. For example, Chinese invention patent CN107990458A discloses an integrated heat pipe dehumidifier. In this patent document, the compressor, evaporator, expansion valve, and condenser form an air conditioning system, resulting in a highly complex control system and high overall cost. Utility Model Content

[0003] This invention provides a low-energy-consumption, precision-controlled, low-temperature dehumidifier system that simplifies the control method of evaporator refrigeration and reduces manufacturing costs.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] This utility model provides a low-energy, precision-controlled low-temperature dehumidifier system, including a dehumidification channel, heat pipes, an evaporator, a condenser, a compressor, an expansion valve, a heat exchanger, a low-temperature storage tank, a first pump body, a first valve body, a second pump body, and a second valve body. The heat pipes include a heat-absorbing section and a heat-releasing section. The heat-absorbing section, evaporator, heat-releasing section, and condenser are sequentially arranged in the dehumidification channel along the gas flow direction. The heat exchanger has a first heat exchange channel and a second heat exchange channel that can exchange heat with each other. One end of the first heat exchange channel, the compressor, the condenser, the expansion valve, and the other end of the first heat exchange channel are sequentially connected. One end of the second heat exchange channel, the low-temperature storage tank, the first valve body, the first pump body, and the other end of the second heat exchange channel are sequentially connected. The evaporator, the low-temperature storage tank, the second valve body, and the second pump body are sequentially connected.

[0006] In some embodiments, a proportional valve and a radiator are also included. The proportional valve has an inlet, a first outlet, and a second outlet. The proportional valve can adjust the opening degree of the first outlet and the second outlet. The compressor is connected to the inlet, the first outlet is connected to the condenser, and the second outlet, the radiator, and the other end of the first heat exchange channel are sequentially connected.

[0007] In some embodiments, the system further includes a first temperature sensor, a second temperature sensor, and a control module. The first temperature sensor is used to detect the temperature of the evaporator, and the second temperature sensor is used to detect the temperature of the refrigerant in the low-temperature storage tank. The compressor, the first pump body, the first valve body, the second pump body, the second valve body, the first temperature sensor, and the second temperature sensor are all connected to the control module.

[0008] In some embodiments, the dehumidification channel includes an air intake channel and a heating channel, which are connected sequentially along the gas flow direction, with the heating channel located above the air intake channel. The heat pipe is arranged vertically, the heat absorption part and the evaporator are located in the air intake channel, and the heat release part and the condenser are located in the heating channel.

[0009] In some embodiments, the system further includes a housing, wherein the air inlet channel and the heating channel are both located inside the housing, and the compressor, heat exchanger, low-temperature storage tank, first pump body, first valve body, second pump body and second valve body are all fixed inside the housing. The top surface of the housing is provided with an air outlet communicating with the heating channel, and the side surface of the housing is provided with an air inlet communicating with the air inlet channel.

[0010] In some embodiments, the dehumidification channel includes an air intake channel and a heating channel, which are connected sequentially along the gas flow direction. The heating channel is located on one side of the air intake channel in the horizontal direction. The height of the heat-releasing part is greater than the height of the heat-absorbing part. The heat-absorbing part and the evaporator are located in the air intake channel, and the heat-releasing part and the condenser are located in the heating channel.

[0011] In some embodiments, an air filter is provided at the inlet end of the dehumidification channel.

[0012] In some embodiments, a fan is provided in the dehumidification channel, and the fan is used to blow air along the gas flow direction.

[0013] This invention has at least the following beneficial effects: This invention utilizes the refrigerant after the condenser releases heat to exchange heat with the refrigerant in the low-temperature storage tank, thereby reducing the temperature of the refrigerant in the low-temperature storage tank. Then, the cooled refrigerant in the low-temperature storage tank is directly transported to the evaporator, so that the evaporator can continuously cool. This control method only requires the cooled refrigerant to be transported to the evaporator, which can simplify the control method of evaporator cooling and reduce manufacturing costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a low-energy-consumption precision-controlled low-temperature dehumidifier system according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the pipeline connection structure of a low-energy-consumption precision-controlled low-temperature dehumidifier system according to an embodiment of the present invention.

[0016] The attached figures are labeled as follows:

[0017] Housing 10, dehumidification channel 100, air inlet 101, air outlet 102, air intake channel 110, heating channel 120, fan 130, air filter 140;

[0018] Heat pipe 200, heat absorption section 210, heat dissipation section 220;

[0019] Evaporator 300;

[0020] Condenser 400, proportional valve 410, radiator 420;

[0021] Compressor 500, expansion valve 510;

[0022] Heat exchanger 600;

[0023] 700-degree cryogenic storage tank;

[0024] First pump body 810, second pump body 820;

[0025] First valve body 910, second valve body 920. Detailed Implementation

[0026] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0027] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intermediary element (e.g., the third element) between the element and the other element.

[0029] Embodiments of this utility model provide a low-energy, precision-controlled, low-temperature dehumidifier system, such as... Figure 1 and Figure 2As shown, the system includes a dehumidification channel 100, a heat pipe 200, an evaporator 300, a condenser 400, a compressor 500, an expansion valve 510, a heat exchanger 600, a low-temperature storage tank 700, a first pump body 810, a first valve body 910, a second pump body 820, and a second valve body 920. The heat pipe 200 includes a heat-absorbing section 210 and a heat-releasing section 220. The heat-absorbing section 210 absorbs external heat, and the heat-releasing section 220 dissipates heat. The refrigerant inside the heat pipe 200 absorbs heat in the heat-absorbing section 210, moves to the heat-releasing section 220, dissipates heat in the heat-releasing section 220, and then returns to the heat-absorbing section 210, thus cycling through heat release and absorption.

[0030] The heat absorption section 210, evaporator 300, heat release section 220, and condenser 400 are arranged sequentially within the dehumidification channel 100 along the gas flow direction. Air requiring dehumidification enters the dehumidification channel 100 through its inlet. The air first contacts the heat absorption section 210; since indoor air is typically 23-25°C, this heats the heat absorption section 210. The refrigerant within the heat absorption section 210 flows along the heat pipe 200 to the heat release section 220. After absorbing heat in the heat absorption section 210, the air temperature typically drops to 15-18°C. Then, the air continues to flow along the dehumidification channel 100 to the evaporator 300, where it is cooled and dehumidified, further reducing the air temperature to 3-12°C. Then, the cooled and dehumidified air comes into contact with the heat dissipation section 220. Because the refrigerant in the heat dissipation section 220 is at a high temperature, it can exchange heat with the cooled air, thereby heating the air to approximately 15-20°C. The condenser 400 then reheats the air, typically to 23-25°C. The cooled refrigerant then flows to the heat absorption section 210, allowing for the recycling of the refrigerant to heat the dehumidified air. This effectively utilizes the characteristics of the heat pipe, reducing the power consumption of the condenser 400 compared to existing technologies, thus lowering energy consumption.

[0031] The heat exchanger 600 has a first heat exchange channel and a second heat exchange channel that can exchange heat with each other. One end of the first heat exchange channel is sequentially connected to the compressor 500, the condenser 400, the expansion valve 510, and the other end of the first heat exchange channel. The first heat exchange channel corresponds to the evaporator of the condenser 400. One end of the second heat exchange channel is sequentially connected to the low-temperature storage tank 700, the first valve body 910, the first pump body 810, and the other end of the second heat exchange channel. The evaporator 300, the low-temperature storage tank 700, the second valve body 920, and the second pump body 820 are sequentially connected. The second heat exchange channel corresponds to the condenser of the evaporator 300. Thus, the refrigerant in the first heat exchange channel exchanges heat with the refrigerant in the second heat exchange channel, thereby lowering the temperature of the refrigerant in the second heat exchange channel. The low-temperature refrigerant can be stored in the low-temperature storage tank 700. The first pump 810 can pump refrigerant, allowing it to circulate between the second heat exchange channel and the low-temperature storage tank 700. The second pump 820 can also pump refrigerant, allowing it to circulate between the evaporator 300 and the low-temperature storage tank 700. Therefore, in this embodiment, the cooled refrigerant in the low-temperature storage tank 700 is delivered to the evaporator 300, enabling the evaporator 300 to continuously cool. This control method only requires delivering the cooled refrigerant to the evaporator 300, simplifying the control of the evaporator 300's cooling process. It eliminates the need for a complex control system, reducing the overall system manufacturing cost.

[0032] In some embodiments, the low-energy-consumption precision-controlled low-temperature dehumidifier system further includes a proportional valve 410 and a radiator 420. The proportional valve 410 can be a three-way proportional valve, having an inlet, a first outlet, and a second outlet. The proportional valve 410 can adjust the opening degree of the first outlet and the second outlet, thereby changing the flow rate of the first outlet and the second outlet. The compressor 500 is connected to the inlet, the first outlet is connected to the condenser 400, and the second outlet, the radiator 420, and the other end of the first heat exchange channel are sequentially connected.

[0033] The flow rates of the first and second liquid outlets can be adjusted using the proportional valve 410. When the flow rate at the first outlet is higher, more of the high-temperature refrigerant flows to the condenser 400 and less to the radiator 420, thus providing more heat to the dehumidified air and increasing its heating effect, thereby significantly raising the air temperature. Conversely, when the flow rate at the first outlet is lower, less of the high-temperature refrigerant flows to the condenser 400, providing less heat to the dehumidified air and more to the radiator 420, reducing the heating effect and slightly lowering the air temperature. Therefore, in this embodiment, the proportional valve 410 can be used to adjust the air temperature to meet the needs of different scenarios.

[0034] In some embodiments, the low-energy precision-controlled low-temperature dehumidifier system further includes a first temperature sensor, a second temperature sensor, and a control module. The first temperature sensor is used to detect the temperature of the evaporator 300, and the second temperature sensor is used to detect the temperature of the refrigerant in the low-temperature storage tank 700. The compressor 500, the first pump body 810, the first valve body 910, the second pump body 820, the second valve body 920, the first temperature sensor, and the second temperature sensor are all connected to the control module.

[0035] The first and second temperature sensors can send the detected temperatures to the control module. Based on the detected temperatures, the control module can issue corresponding control commands to the compressor 500, the first pump body 810, the first valve body 910, the second pump body 820, and the second valve body 920, so that the compressor 500, the first pump body 810, the first valve body 910, the second pump body 820, and the second valve body 920 can work in coordination with each other.

[0036] The control module has a pre-stored relationship between the temperature of the refrigerant in the low-temperature storage tank 700 and the opening degree of the first valve body 910. When the second temperature sensor detects the temperature of the refrigerant in the low-temperature storage tank 700, the control module controls the first valve body 910 to open to the corresponding degree to control the flow of the refrigerant and keep the refrigerant in the low-temperature storage tank 700 at a low temperature.

[0037] The control module also pre-stores the correspondence between the temperature of the refrigerant in the low-temperature storage tank 700, the temperature of the evaporator 300, and the opening degree of the second valve body 920. This correspondence exists in the form of an algorithm. By substituting the temperatures of the refrigerant in the low-temperature storage tank 700 and the evaporator 300 into this algorithm, the opening degree of the second valve body 920 can be calculated. When the second temperature sensor detects the temperature of the refrigerant in the low-temperature storage tank 700 and the first temperature sensor detects the temperature of the evaporator 300, the control module accordingly controls the second valve body 920 to open to the corresponding degree to control the refrigerant flow and keep the evaporator 300 at a low temperature.

[0038] Therefore, this embodiment can achieve precise control and the failure rate of the entire system is low.

[0039] In this embodiment, the control module includes, but is not limited to, microcontrollers, DSP chips, and programmable logic devices.

[0040] In some embodiments, such as Figure 1 As shown, the dehumidification channel 100 includes an air inlet channel 110 and a heating channel 120. The air inlet channel 110 and the heating channel 120 are connected sequentially along the gas flow direction, and the heating channel 120 is located above the air inlet channel 110. The heat pipe 200 is arranged vertically. The heat absorption part 210 and the evaporator 300 are located in the air inlet channel 110, and the heat release part 220 and the condenser 400 are located in the heating channel 120.

[0041] In this embodiment, the heating channel 120 is positioned above the air intake channel 110, forming a stacked layout, which reduces the space occupied in the horizontal direction. The heat pipe 200 is correspondingly arranged vertically, and the heat absorption section 210 and the heat release section 220 can naturally form a height difference, which facilitates the flow of refrigerant in the heat pipe 200.

[0042] Furthermore, the low-energy-consumption precision-controlled low-temperature dehumidifier system also includes a housing 10, with an air inlet channel 110 and a heating channel 120 both located inside the housing 10. The air inlet channel 110 and the heating channel 120 are formed by the inner wall of the housing 10. The compressor 500, heat exchanger 600, low-temperature storage tank 700, first pump body 810, first valve body 910, second pump body 820, and second valve body 920 are all fixed inside the housing 10, which provides dust protection. The top surface of the housing 10 is provided with an air outlet 102 communicating with the heating channel 120, through which the dehumidified and heated air flows out. The side of the housing 10 is provided with an air inlet 101 communicating with the air inlet channel 110, through which the air to be dehumidified enters the air inlet channel 110. Since the air outlet 102 is located on the top surface of the outer casing 10 and the air inlet 101 is located on the side of the outer casing 10, the distance between the two is relatively far, which can reduce the secondary entry of dehumidified air into the air intake channel 110.

[0043] In other embodiments, the dehumidification channel includes an air intake channel and a heating channel, which are connected sequentially along the gas flow direction. The heating channel is located on one side of the air intake channel in the horizontal direction. The height of the heat release part is greater than the height of the heat absorption part. The heat absorption part and the evaporator are located in the air intake channel, and the heat release part and the condenser are located in the heating channel.

[0044] In this embodiment, the heating channel is positioned on one side of the air intake channel in the horizontal direction, forming a horizontally arranged layout. This reduces the space occupied in the vertical direction, making it suitable for applications with limited height space. The heat pipes in this embodiment can be placed roughly horizontally, forming a certain angle with the horizontal direction, so that the height of the heat-dissipating part is greater than the height of the heat-absorbing part. This horizontally placed heat pipe facilitates side installation.

[0045] In some embodiments, an air filter 140 is provided at the inlet end of the dehumidification channel 100 to filter the air, reduce impurities entering the dehumidification channel 100, and improve the cleanliness of the air.

[0046] In some embodiments, a fan 130 is provided in the dehumidification channel 100. The fan 130 blows air along the gas flow direction, and the heated and dehumidified air can be blown out from the air outlet 102. At the same time, under the action of airflow, the air can pass more smoothly through the air inlet channel 110 and the heating channel 120 in sequence.

[0047] In some embodiments, the refrigerant in the cryogenic storage tank 700 may be ethylene glycol.

[0048] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A low-energy, precision-controlled low-temperature dehumidifier system, characterized in that: The system includes a dehumidification channel, heat pipes, an evaporator, a condenser, a compressor, an expansion valve, a heat exchanger, a low-temperature storage tank, a first pump body, a first valve body, a second pump body, and a second valve body. The heat pipes include heat-absorbing and heat-releasing sections. The heat-absorbing section, evaporator, heat-releasing section, and condenser are arranged sequentially in the dehumidification channel along the gas flow direction. The heat exchanger has a first heat exchange channel and a second heat exchange channel that can exchange heat with each other. One end of the first heat exchange channel, the compressor, the condenser, the expansion valve, and the other end of the first heat exchange channel are sequentially connected. One end of the second heat exchange channel, the low-temperature storage tank, the first valve body, the first pump body, and the other end of the second heat exchange channel are sequentially connected. The evaporator, the low-temperature storage tank, the second valve body, and the second pump body are sequentially connected.

2. The low-energy-consumption, precision-controlled, low-temperature dehumidifier system according to claim 1, characterized in that: It also includes a proportional valve and a radiator. The proportional valve has an inlet, a first outlet and a second outlet. The proportional valve can adjust the opening of the first outlet and the second outlet. The compressor is connected to the inlet. The first outlet is connected to the condenser. The second outlet, the radiator and the other end of the first heat exchange channel are connected in sequence.

3. The low-energy-consumption, precision-controlled, low-temperature dehumidifier system according to claim 1, characterized in that: It also includes a first temperature sensor, a second temperature sensor, and a control module. The first temperature sensor is used to detect the temperature of the evaporator, and the second temperature sensor is used to detect the temperature of the refrigerant in the low-temperature storage tank. The compressor, the first pump body, the first valve body, the second pump body, the second valve body, the first temperature sensor, and the second temperature sensor are all connected to the control module.

4. The low-energy-consumption precision-controlled low-temperature dehumidifier system according to any one of claims 1-3, characterized in that: The dehumidification channel includes an air intake channel and a heating channel, which are connected sequentially along the gas flow direction, with the heating channel located above the air intake channel. The heat pipe is arranged vertically, with the heat absorption part and evaporator located in the air intake channel, and the heat release part and condenser located in the heating channel.

5. The low-energy-consumption, precision-controlled, low-temperature dehumidifier system according to claim 4, characterized in that: It also includes a housing, in which the air inlet channel and the heating channel are both located. The compressor, heat exchanger, low-temperature storage tank, first pump body, first valve body, second pump body and second valve body are all fixed inside the housing. The top surface of the housing is provided with an air outlet communicating with the heating channel, and the side surface of the housing is provided with an air inlet communicating with the air inlet channel.

6. The low-energy-consumption precision-controlled low-temperature dehumidifier system according to any one of claims 1-3, characterized in that: The dehumidification channel includes an air intake channel and a heating channel, which are connected sequentially along the gas flow direction. The heating channel is located on one side of the air intake channel in the horizontal direction. The height of the heat release part is greater than the height of the heat absorption part. The heat absorption part and the evaporator are located in the air intake channel, and the heat release part and the condenser are located in the heating channel.

7. The low-energy-consumption precision-controlled low-temperature dehumidifier system according to any one of claims 1-3, characterized in that: An air filter is installed at the inlet end of the dehumidification channel.

8. The low-energy-consumption precision-controlled low-temperature dehumidifier system according to any one of claims 1-3, characterized in that: A fan is installed inside the dehumidification channel, and the fan is used to blow air along the gas flow direction.

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