High-precision constant-temperature dehumidifier

Abstract

A high-precision constant-temperature dehumidifier comprises a compressor, an inner condenser, an outer condenser and an evaporator and further comprises an electric three-way proportional adjusting ball valve, the output end of the compressor is connected with the input end of the electric three-way proportional adjusting ball valve, and an output port A of the electric three-way proportional adjusting ball valve is connected with the input end of the outer condenser. An output port B of the electric three-way proportional adjusting ball valve is connected with the input end of the inner condenser, the output end of the inner condenser and the output end of the outer condenser are converged and then connected with the input end of the evaporator through the gas-liquid heat regenerator and the throttling assembly in sequence, and the output end of the evaporator is connected with the input end of the gas-liquid heat regenerator. And the output end of the gas-liquid heat regenerator is connected with the input end of the compressor. According to the electric three-way proportional adjustment ball valve belt body four-way valve, proportional output is adjusted through the electric three-way proportional adjustment ball valve, then the target temperature is adjusted, and temperature control is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, in particular to a high-precision constant-temperature dehumidifier. Background Art

[0002] In the current heat pump system, there is a way to control the temperature by setting an internal condenser and an external condenser. For example, a temperature control system for a sludge dryer with the Chinese patent publication number CN206476876U includes an oven and a heat pump unit. The heat pump unit includes a compressor, an internal condenser arranged in the oven, an external condenser arranged outside the oven, a four-way valve, an electronic expansion valve, an evaporator and a gas-liquid separator. The output end of the compressor is connected to the first interface of the four-way valve. The second interface of the four-way valve is connected to the input end of the external condenser. The output end of the external condenser is connected to the input end of the electronic expansion valve through a first one-way valve. The third interface of the four-way valve is connected to the input end of the internal condenser. The output end of the internal condenser is connected to the input end of the electronic expansion valve through a second one-way valve. The fourth interface of the four-way valve is connected to the input end of the gas-liquid separator through a return pipe. The output end of the electronic expansion valve is connected to the input end of the evaporator. The output end of the evaporator is connected to the input end of the gas-liquid separator. The output end of the gas-liquid separator is connected to the input end of the compressor. The compressor, the four-way valve, the external condenser, the first one-way valve, the electronic expansion valve, the evaporator and the gas-liquid separator are sequentially connected to form a first refrigerant circulation system. The compressor, the four-way valve, the internal condenser, the second one-way valve, the electronic expansion valve, the evaporator and the gas-liquid separator are sequentially connected to form a second refrigerant circulation system. In the above heat pump system, the four-way valve is used to switch the use of the internal condenser and the external condenser. During the switching process, one condenser is turned on and the other condenser is turned off. This switching method has a large fluctuation in temperature change. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a high-precision constant-temperature dehumidifier with more accurate temperature control.

[0004] To solve the above technical problems, the technical solution of the present utility model is: a high-precision constant temperature and dehumidifier, including a compressor, an internal condenser, an external condenser and an evaporator, further including an electric three-way proportional regulating ball valve. The output end of the compressor is connected to the input end of the electric three-way proportional regulating ball valve. The output port A of the electric three-way proportional regulating ball valve is connected to the input end of the external condenser. The output port B of the electric three-way proportional regulating ball valve is connected to the input end of the internal condenser. The output ends of the internal condenser and the external condenser converge and then sequentially pass through a gas-liquid heat exchanger and a throttling assembly and are connected to the input end of the evaporator. The output end of the evaporator is connected to the input end of the gas-liquid heat exchanger. The output end of the gas-liquid heat exchanger is connected to the input end of the compressor. Principle of the present utility model: The electric three-way proportional regulating ball valve replaces the four-way valve. By using the electric three-way proportional regulating ball valve to adjust the proportional output to adjust the target temperature. When the target temperature needs to be heated up, more refrigerant enters the internal condenser than the external condenser. When the target temperature needs to be cooled down, more refrigerant enters the external condenser than the internal condenser. Through the stepless adjustment of the electric three-way proportional regulating ball valve, the fluctuation range of the target temperature is small and the temperature control is more accurate.

[0005] As an improvement, the temperature sensor drives the output ratio of the electric three-way proportional regulating ball valve by detecting the target temperature.

[0006] As an improvement, both the internal condenser and the external condenser are microchannel heat exchangers made of pure aluminum.

[0007] The beneficial effects brought by the present utility model compared with the prior art are:

[0008] The electric three-way proportional regulating ball valve replaces the four-way valve. By using the electric three-way proportional regulating ball valve to adjust the proportional output to adjust the target temperature. When the target temperature needs to be heated up, more refrigerant enters the internal condenser than the external condenser. When the target temperature needs to be cooled down, more refrigerant enters the external condenser than the internal condenser. Through the stepless adjustment of the electric three-way proportional regulating ball valve, the fluctuation range of the target temperature is small and the temperature control is more accurate. Description of the Drawings

[0009] Figure 1 It is the pipeline diagram of the present utility model. Detailed Embodiment

[0010] The present utility model will be further described below with reference to the drawings in the specification.

[0011] Such as Figure 1As shown in the figure, a high-precision constant temperature and dehumidifier includes a compressor, an inner condenser, an outer condenser, an evaporator and an electric three-way proportional regulating ball valve. The output end of the compressor is connected to the input end of the electric three-way proportional regulating ball valve. The output port A of the electric three-way proportional regulating ball valve is connected to the input end of the outer condenser. The output port B of the electric three-way proportional regulating ball valve is connected to the input end of the inner condenser. After the output ends of the inner condenser and the outer condenser converge, the refrigerant sequentially passes through the gas-liquid heat exchanger for heat exchange and the throttling component for throttling, and then is input into the input end of the evaporator. The output end of the evaporator is connected to the input end of the gas-liquid heat exchanger. The output end of the gas-liquid heat exchanger is connected to the input end of the compressor. The temperature sensor drives the output ratio of the electric three-way proportional regulating ball valve by detecting the target temperature. Both the inner condenser and the outer condenser are microchannel heat exchangers made of pure aluminum.

[0012] Principle of the present utility model: The electric three-way proportional regulating ball valve is a four-way valve. The electric three-way proportional regulating ball valve is used to adjust the proportional output to further adjust the target temperature. When the target temperature needs to be raised for heating, more refrigerant enters the inner condenser than the outer condenser. When the target temperature needs to be lowered, more refrigerant enters the outer condenser than the inner condenser. Through the stepless adjustment of the electric three-way proportional regulating ball valve, the fluctuation range of the target temperature is small and the temperature control is more accurate.

Claims

1. A high-precision constant temperature dehumidifier, comprising a compressor, an inner condenser, an outer condenser and an evaporator, characterized in that: It also includes an electric three-way proportional regulating ball valve, the output end of the compressor is connected to the input end of the electric three-way proportional regulating ball valve, the output port A of the electric three-way proportional regulating ball valve is connected to the input end of the external condenser, the output port B of the electric three-way proportional regulating ball valve is connected to the input end of the internal condenser, the output end of the internal condenser and the output end of the external condenser are merged and then connected to the input end of the evaporator through a gas-liquid regenerator and a throttling component in sequence, the output end of the evaporator is connected to the input end of the gas-liquid regenerator, and the output end of the gas-liquid regenerator is connected to the input end of the compressor.

2. A high-precision constant temperature dehumidifier according to claim 1, characterized in that: The temperature sensor drives the output ratio of the electric three-way proportional adjustment ball valve by detecting the target temperature.

3. A high-precision constant temperature dehumidifier according to claim 1, characterized in that: The inner condenser and the outer condenser are both pure aluminum microchannel heat exchangers.

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