Heat pump unit

Abstract

The utility model relates to a kind of heat pump unit, it includes compressor, condenser, evaporator and gas-liquid separator, gas-liquid separator includes shell, input pipe and output pipe, and at least two gas outlets are arranged on the pipe section extending to separation inner cavity interval, and the air inlet on input pipe and gas outlet are staggered arrangement. The non-central arrangement of gas outlet is conducive to reducing liquid coolant directly input into output pipe, improve the reliability of system;In addition, the air inlet on input pipe and the gas outlet of output pipe are staggered arrangement, conducive to avoiding the problem that liquid coolant is directly sucked by output pipe, enhances separation effect.

Claims

1. A heat pump unit, characterized in that, include: A compressor is used to compress low-temperature, low-pressure refrigerant into high-temperature, high-pressure refrigerant. A condenser, which is connected to the output of the compressor; An evaporator, one end of which is connected to the condenser, and the other end of which is connected to the input end of the compressor via a gas-liquid separator; A gas-liquid separator, comprising: The shell has a separate internal cavity formed therein; An inlet pipe, one end of which is connected to the evaporator, and the other end of which extends into the separation chamber; The output pipe has at least two air outlets spaced apart on the pipe section extending into the separation cavity, and the air inlet on the input pipe is staggered with the air outlet.

2. The heat pump unit according to claim 1, characterized in that, The input tube has a first input end and a first output end, the first output end extends into the separation inner cavity, and the air inlet and the air outlet are arranged in opposite directions.

3. The heat pump unit according to claim 2, characterized in that, The gas-liquid separator is arranged longitudinally, the housing is cylindrical, the axial direction of the output pipe is parallel to the axial direction of the housing, and the first output end is bent toward the side wall of the housing.

4. The heat pump unit according to claim 2, characterized in that, The output tube has a second input terminal and a second output terminal, the second input terminal extends into the separation cavity, and the second input terminal is a closed structure.

5. The heat pump unit according to claim 2, characterized in that, The gas-liquid separator is arranged longitudinally, and the output pipe is connected to the separation cavity through a support member. The first output end of the input pipe extends to the bottom of the second input end of the output pipe.

6. The heat pump unit according to claim 5, characterized in that, The output tube has a second input terminal and a second output terminal, the second input terminal extends into the separation cavity, and the second input terminal has an open structure.

7. The heat pump unit according to claim 1, characterized in that, The output pipe is also provided with an oil return hole, which is located below the air outlet and is used to recover the lubricating oil in the separation chamber.

8. The heat pump unit according to claim 7, characterized in that, The housing is also provided with an oil return pipe, which is located at the bottom of the housing. The other end of the oil return pipe is connected to the compressor through an oil return capillary tube.

9. The heat pump unit according to claim 1, characterized in that, The compressor is also equipped with an auxiliary separator, and the output pipe is connected to the auxiliary separator.

10. A heat pump unit, characterized in that, include: compressor; The condenser and evaporator are connected between the input and output ends of the compressor; A gas-liquid separator is connected between the input end of the compressor and the evaporator. The gas-liquid separator includes a housing, an input pipe and an output pipe. A separation cavity is formed inside the housing. The input pipe and the output pipe extend into the separation cavity. At least two gas outlets are provided at intervals on the outer wall of the output pipe. The gas-liquid separator is configured such that the gas-liquid mixed refrigerant output from the evaporator is transported to the separation chamber through the input pipe, and the gaseous refrigerant in the separation chamber enters the output pipe through the outlet and is returned to the compressor through the output pipe.

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