High-temperature adjustable temperature dehumidifier and control method thereof

Abstract

Disclosed are a high-temperature adjustable temperature dehumidifier and a control method thereof. The high-temperature adjustable temperature dehumidifier comprises a compressor, a condenser, a reheating condenser, an expansion valve, an evaporator, a first electromagnetic valve, a second electromagnetic valve, a liquid storage device and a jet loop. The compressor, the condenser, the reheating condenser, the expansion valve and the evaporator are serially connected through a coolant pipeline. The first electromagnetic valve is disposed between the condenser and the reheating condenser. The liquid storage device is disposed between the reheating condenser and the expansion valve. The second electromagnetic valve is disposed between the condenser and the liquid storage device. One end of the jet loop is serially connected between the liquid storage device and the expansion valve. The other end of the jet loop is serially connected between the evaporator and the compressor. The expansion valve which is an electronic expansion valve is disposed in the jet loop. The condenser is a water-cooling condenser; a water valve is disposed at a water inlet of the condenser. Inflow temperature of condensate can be 5 DEG C to 60 DEG C; the defect that the conventional dehumidifier has a narrow operation range is overcome; the high-temperature adjustable temperature dehumidifier is flexible to operate and widely applicable.

Description

technical field [0001] The invention relates to the field of HVAC, in particular to a high-temperature temperature-regulating dehumidifier and a control method thereof. Background technique [0002] The water-cooled temperature-adjustable dehumidifier widely used at present is generally composed of a compressor, a shell-and-tube condenser as the main condenser, a reheater as an auxiliary condenser, an evaporator, an expansion valve and its auxiliary components, etc. The shell-and-tube Cooling and dehumidification can be achieved when the single-type condenser is operated alone; when the outlet air temperature is lower than the set temperature, the reheater and the shell-and-tube condenser need to be operated at the same time to achieve both dehumidification and temperature control. The unit is limited by the condensation temperature , operating over a narrow temperature range. [0003] The shell-and-tube condenser uses cooling water to take away the heat released by the con...

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Problems solved by technology

[0002] The water-cooled temperature-adjustable dehumidifier widely used at present is generally composed of a compressor, a shell-and-tube condenser as the main condenser, a reheater as an auxiliary condenser, an evaporator, an expansion valve and its accessories, etc., and the shell-and-tube Cooling and dehumidification can be achieved when the single-type condenser is operated alone; when the outlet air temperature is lower than the set temperature, the reheater and the shell-and-tube condenser need to be operated at the same time to achieve both dehumidification and temperature control. The unit is limited by the condensation temperature , operating over a narrow temperature range

[0003] The shell-and-tube condenser uses cooling water to take away the heat released by the condensation of the refrigerant. The inlet temperature of conventional cooling water is 18-32°C. In water-scarce areas or areas with limited water capacity, if the inlet water temperature of the condenser temperature, will cause the compressor exhaust temperature to be too high, resulting in system failure

In cold regions, the inlet water temperature of the condenser is lower than 12°C, which will cause the condensing pressure of the compressor to be lower than 10bar, and the conventional temperature-adjusting dehumidifier cannot operate normally.

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