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Dehumidifier

A technology of decompression device and air duct, applied in the field of dehumidification device, can solve the problem of non-condensing temperature reduction and the like

Active Publication Date: 2020-11-06
MITSUBISHI ELECTRIC CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the conventional dehumidifier, since the refrigerant in the superheated gas state, the refrigerant in the gas-liquid two-phase state, and the refrigerant in the supercooled liquid state exchange heat with the air that has undergone heat exchange in the evaporator in the condenser, it cannot be used. The condensing temperature is sufficiently lowered

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0028] refer to figure 1 , The dehumidifier 100 of Embodiment 1 is provided with: a refrigerant circuit including a compressor 1, a first condenser 2, a second condenser 3, an expansion valve 4 as a decompression device, and an evaporator 5; and a housing 10, The interior accommodates the refrigerant circuit. The first condenser 2, the second condenser 3, and the evaporator 5 are heat exchangers that exchange heat between the refrigerant and air. The first condenser 2, the second condenser 3, and the evaporator 5 have an inlet and an outlet of the refrigerant and an inlet and an outlet of air, respectively. Housing 10 faces an external space (living room space) to be dehumidified by dehumidifier 100 .

[0029] First, the refrigerant circuit of the dehumidifier 100 will be described. The refrigerant circuit of the dehumidifier 100 constitutes a refrigeration cycle in the casing 10 . In the refrigerant circuit, the refrigerant flows through the compressor 1, the first conden...

Embodiment approach 2

[0049] Next, refer to Figure 5 , the dehumidifier 101 according to Embodiment 2 will be described. The dehumidifier 101 basically has the same structure as the dehumidifier 100 of Embodiment 1, but further includes an air blower 15 for taking in air from the outside of the casing 10 in the first air passage 11 and the second air passage 12 . This is different.

[0050] The air blower 15 is formed in the casing 10 . The blower unit 15 is provided in the first air passage 11 and the second air passage 12 so as to be able to send air outside the casing 10 . The blower unit 15 may be constituted by, for example, one blower. Preferably, the blower unit 15 is formed so that the air volumes of the first air passage 11 and the second air passage 12 can be adjusted. Preferably, the blower unit 15 is constituted by, for example, a blower provided in the first air path 11 so as to blow air, and a blower provided in the second air path 12 so as to blow air.

[0051] According to suc...

Embodiment approach 3

[0053] Next, refer to Figure 6 , the dehumidifier 102 according to Embodiment 3 will be described. The dehumidifier 102 basically has the same structure as the dehumidifier 100 of Embodiment 1, but differs in that it further includes an adjustment unit 16 that adjusts the ratio of the air volume in the first air passage 11 to the air volume in the second air passage 12. .

[0054] The adjustment part 16 is formed in the housing 10 . The adjustment unit 16 may have any configuration as long as it can adjust the air volume in the first air passage 11 and the air volume in the second air passage 12 . The adjustment unit 16 is, for example, a damper formed in the first air passage 11 and capable of adjusting the cross-sectional area (opening) of the first air passage 11 perpendicular to the air flow direction of the first air passage 11 . The adjustment unit 16 is formed, for example, on the upstream side of the first condenser 2 in the first air passage 11 .

[0055] The fir...

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PUM

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Abstract

To provide a dehumidifier having a higher EF value than conventional dehumidifiers. This invention is provided with: a refrigerant circuit including a compressor (1), a first condenser (2), a second condenser (3), a pressure reduction device (4), and an evaporator (5); and a casing (10) housing the refrigerant circuit in the interior. In the refrigerant circuit, the refrigerant sequentially flows through the compressor (1), the first condenser (2), the second condenser (3), the pressure reduction device (4), and the evaporator (5). The casing (10) includes a partition (6), which separates a first airflow path (11), in which some of the air taken into the interior from the exterior of the casing (10) passes through the first condenser (2), and a second airflow path (12), in which the remainder of the air taken into the interior from the exterior of the casing (10) sequentially passes through the evaporator and the second condenser (3), from each other.

Description

technical field [0001] The present invention relates to a dehumidification device, in particular to a dehumidification device utilizing a refrigeration cycle. Background technique [0002] In a conventional dehumidifier using a refrigeration cycle, the evaporator cools and dehumidifies the air taken into the dehumidifier, and the condenser heats the air cooled and dehumidified by the evaporator. [0003] As an index showing the dehumidification performance of a dehumidifier, an EF value showing a dehumidification amount L per 1 kWh is known. The higher the EF value of the dehumidifier, the more power consumption can be reduced. As a method of increasing the EF value of the dehumidifier, there are conceivable methods of reducing the condensation temperature of the refrigerant, reducing the difference between the condensation pressure and the evaporation pressure, and reducing the load on the compressor. [0004] In the conventional dehumidifier, since the refrigerant in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B29/00F24F1/0083F24F3/14
CPCF24F1/00F24F3/14F25B29/00
Inventor 伊东大辅前山英明露木元
Owner MITSUBISHI ELECTRIC CORP