阅读说明：本技术 空调机组 (Air conditioning unit ) 是由 谷彦涛 代斌 牟珊珊 曾华杰 于 2020-07-07 设计创作，主要内容包括：本发明提供了一种空调机组,包括气液分离器,气液分离器设有排油口；抽油组件,连接气液分离器,抽油组件设有抽油通道,抽油通道连通排油口,抽油组件提供抽吸力。本发明提供的空调机组通过抽油组件增加排油动力,使得气液分离器中的油能够从排油口抽出,避免气液分离器堵塞,同时,将该部分油回流到压缩机,避免压缩机的油量持续减少,保证了整个空调机组的正常工作。(The invention provides an air conditioning unit, which comprises a gas-liquid separator, wherein the gas-liquid separator is provided with an oil discharge port; the oil pumping assembly is connected with the gas-liquid separator and provided with an oil pumping channel which is communicated with the oil discharge port and provides suction force. According to the air conditioning unit provided by the invention, the oil extraction power is increased through the oil extraction assembly, so that oil in the gas-liquid separator can be extracted from the oil extraction port, the gas-liquid separator is prevented from being blocked, meanwhile, the part of oil flows back to the compressor, the oil quantity of the compressor is prevented from being continuously reduced, and the normal work of the whole air conditioning unit is ensured.)

1. An air conditioning assembly, comprising:

the gas-liquid separator is provided with an oil discharge port;

the oil pumping assembly is connected with the gas-liquid separator and the gas-liquid separator, is provided with an oil pumping channel, and is communicated with the oil outlet, and provides suction force.

2. The air conditioning assembly as set forth in claim 1, further comprising:

the compressor is provided with an air inlet end, and the oil pumping channel is communicated with the air inlet end.

3. The air conditioning assembly of claim 2, wherein the oil pumping assembly comprises:

the first end of the oil pumping pipe is connected with the oil discharge port;

the venturi is provided with the oil pumping channel, the oil pumping channel is provided with an air inlet and an air outlet, the venturi is further provided with a connecting part, the connecting part is provided with a communicating oil pumping port of the oil pumping channel, and the second end of the oil pumping pipe is connected with the oil pumping port.

4. The air conditioning assembly as set forth in claim 3, wherein said compressor further has a discharge end;

the air conditioning unit further includes:

a first connecting pipe, a first end of which is connected with the exhaust end and a second end of which is connected with the air inlet;

and the first end of the second connecting pipe is connected with the air outlet, and the second end of the second connecting pipe is connected with the air inlet end.

5. The air conditioning assembly as set forth in claim 3, further comprising:

and the electromagnetic valve is arranged on the oil pumping pipe.

6. The air conditioning assembly of claim 2, wherein the oil pumping assembly comprises:

a first end of the third connecting pipe is connected with the oil drain port;

and the pump body is provided with a suction part, the second end of the third connecting pipe is connected with the suction part, and the pump body provides suction force.

7. The air conditioning assembly as set forth in claim 6 wherein said pump body further has a vent;

the oil pumping assembly further comprises:

and a first end of the fourth connecting pipe is connected with the exhaust part, and a second end of the fourth connecting pipe is connected with the air inlet end.

8. An air conditioning unit according to any one of claims 1 to 7 wherein the oil drain port is provided at the lowest of the gas-liquid separator in the direction of the vertical line.

9. The air conditioning assembly according to claim 8, wherein a first wall surface of the gas-liquid separator is configured as a curved surface, the first wall surface being provided with the oil drain port;

the first wall surface is the wall surface of the gas-liquid separator which is the lowest along the vertical line direction.

10. Air conditioning assembly according to any of claims 2 to 7, wherein the gas-liquid separator is provided with an air outlet;

the air conditioning unit further includes:

and the first end of the fifth connecting pipe is connected with the air outlet, and the second end of the fifth connecting pipe is connected with the air inlet end.

Technical Field

The invention belongs to the technical field of air conditioning equipment, and particularly relates to an air conditioning unit.

Background

An air-cooled heat pump unit is generally provided with a gas-liquid separator. When oil in the system flows through the gas-liquid separator along with a refrigerant, the oil is retained in the gas-liquid separator due to the reduction of the flow speed, and if the oil is not discharged in time, the oil is accumulated more and more, so that the gas-liquid separator is blocked, and the oil needs to be discharged by certain measures.

As shown in fig. 1, in the prior art, an oil discharge port and a pipeline are usually provided at the bottom of the gas-liquid separator 100 ', so that oil can be discharged from the gas-liquid separator 100' and flow back to the compressor 200 ', and due to the high viscosity of the oil, when the power for discharging the oil is insufficient, the oil return efficiency is low, and the gas-liquid separator 100' still may be blocked.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

In view of the above, the present invention provides an air conditioning unit, which includes a gas-liquid separator, wherein the gas-liquid separator is provided with an oil discharge port; the oil pumping assembly is connected with the gas-liquid separator and provided with an oil pumping channel which is communicated with the oil discharge port and provides suction force.

The air conditioning unit provided by the invention is characterized in that the gas-liquid separator is provided with an oil discharge port, the air conditioning unit also comprises an oil pumping assembly connected with the gas-liquid separator, an oil pumping channel of the oil pumping assembly is connected with the oil discharge port, and the oil pumping assembly provides suction force to enable oil in the gas-liquid separator to smoothly flow out from the oil discharge port.

In addition, the air conditioning unit provided by the technical scheme of the invention also has the following additional technical characteristics:

in one possible design, the air conditioning unit further includes: the compressor is provided with an air inlet end, and the oil pumping channel is communicated with the air inlet end.

In the design, the oil pumping channel conveys the oil pumped out from the gas-liquid separator to the compressor, and supplies the compressor with the oil required by the normal operation of the compressor, so that the oil enters the system for circulation, and the waste of the oil is avoided.

In one possible design, an oil pumping assembly includes: the first end of the oil pumping pipe is connected with the oil discharge port; the venturi tube is internally provided with an oil pumping channel, the oil pumping channel is provided with an air inlet and an air outlet, the venturi tube is also provided with a connecting part, the connecting part is provided with an oil pumping port communicated with the oil pumping channel, and the second end of the oil pumping pipe is connected with an oil pumping port; along the extending direction of the oil pumping channel, the flow area of the oil pumping channel at the air inlet is larger than that of the oil pumping channel at the connecting part.

In this design, according to the venturi effect principle, the local pressure that the velocity of flow is fast is low, and pressure in the vapour and liquid separator is greater than the pressure that oil pumping channel is located connecting portion department, has formed the pressure differential between vapour and liquid separator and the oil pumping channel, and the oil drain port is connected to oil pumping pipe's first end, and the oil pump mouth is connected to oil pumping pipe's second end, because the existence of pressure differential, venturi takes out oil from vapour and liquid separator smoothly.

In one possible design, the compressor also has a discharge end; the air conditioning unit still includes: the first end of the first connecting pipe is connected with the exhaust end, and the second end of the first connecting pipe is connected with the air inlet; and the first end of the second connecting pipe is connected with the air outlet, and the second end of the second connecting pipe is connected with the air inlet end.

In the design, the first end of the first connecting pipe is connected with the exhaust end, the second end of the first connecting pipe is connected with the air inlet, the compressor sends exhaust gas into the air inlet, and the air conditioning unit generally comprises the compressor.

In one possible design, the air conditioning unit further includes: the electromagnetic valve is arranged on the oil pumping pipe.

In this design, the solenoid valve is located on taking out oil pipe, can change according to the operating mode, like changes such as temperature, ambient temperature, compressor load, through the break-make of solenoid valve or the opening size of solenoid valve, controls the oil extraction volume of oil drain port, can not lead to too much refrigerant to get back to the compressor with oil together, guarantees the compressor and even whole air conditioning unit's normal operating.

In one possible design, an oil pumping assembly includes: the first end of the third connecting pipe is connected with the oil outlet; the pump body is provided with an air suction part and an air exhaust part, the second end of the third connecting pipe is connected with the air suction part, and the pump body provides suction force; and a first end of the fourth connecting pipe is connected with the exhaust part, and a second end of the fourth connecting pipe is connected with the air inlet end.

In this design, the pump body has induction system and exhaust portion, the oil drain port is connected to the first end of second connecting pipe, the induction system is connected to the second end of second connecting pipe, provide suction through the pump body, take oil out from vapour and liquid separator, the exhaust portion is connected to the first end of fourth connecting pipe, the inlet end is connected to the second end of fourth connecting pipe, the pump body takes oil out the back promptly, carry to the compressor, in order to supply the normal operating of compressor, make oil can carry out systemic circulation, the waste of oil has been avoided.

In one possible design, the oil drain is provided at the lowest point of the gas-liquid separator in the direction of the vertical line.

In this design, air conditioning unit follows the plumb line direction, and vapour and liquid separator's the lowest is located to the oil drain, and oil in the vapour and liquid separator assembles oil drain department for oil discharging's efficiency has been accelerated, makes oil discharge smoothly from vapour and liquid separator, avoids causing oily waste.

In one possible design, the first wall surface of the gas-liquid separator is configured as a curved surface, and the first wall surface is provided with an oil discharge port; the first wall surface is the wall surface of the gas-liquid separator which is lowest along the vertical line direction.

In this design, first wall is the wall that gas-liquid separator is the lowest along the plumb line direction, is the curved surface on gas-liquid separator's the first wall, is equipped with the oil drain port on this curved surface, and oil in the gas-liquid separator assembles oil drain port department more fast for oil exhaust's efficiency, make oil discharge smoothly from gas-liquid separator, avoid causing oily waste.

In one possible design, the gas-liquid separator is provided with an air outlet; the air conditioning unit still includes: and a first end of the fifth connecting pipe is connected with the air outlet, and a second end of the fifth connecting pipe is connected with the air inlet end.

In the design, the first end of the fifth connecting pipe is connected with the air outlet, the second end of the fifth connecting pipe is connected with the air inlet, the oil in the gas-liquid separator can be discharged from the oil outlet, and the separated gas is sent to the compressor through the fifth connecting pipe.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic diagram of an air conditioning unit according to the prior art;

fig. 2 shows a schematic structural view of an air conditioning assembly according to an embodiment of the invention;

fig. 3 shows a schematic structural diagram of an air conditioning unit according to another embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1, fig. 2 and fig. 3 is:

100 'gas-liquid separator, 200' compressor.

100 gas-liquid separator, 102 oil drain port, 200 compressor, 201 air inlet end, 202 air outlet end, 300 electromagnetic valve, 400 oil pumping assembly, 401 oil pumping pipe, 402 venturi tube, 4021 connecting part, 403 third connecting pipe, 404 pump body, 405 fourth connecting pipe, 500 first connecting pipe, 600 second connecting pipe, 700 fifth connecting pipe.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

An air conditioning assembly provided according to some embodiments of the present invention is described below with reference to fig. 2 and 3.