CN210599406U

CN210599406U - Compressor and air conditioning unit

Info

Publication number: CN210599406U
Application number: CN201921553212.7U
Authority: CN
Inventors: 张贺龙; 李日华; 武晓昆; 刘志华; 曾祥熙
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-05-22
Anticipated expiration: 2029-09-18

Abstract

The application provides a compressor and an air conditioning unit. The compressor comprises a shell and an exhaust pipe connected with the shell, wherein a transition buffer cavity is formed in the part, connected with the exhaust pipe, of the shell, and the transition buffer cavity is used for buffering media conveyed to the exhaust pipe. Use the technical scheme of the utility model, before the blast pipe discharge need be followed to the gas that produces when the casing, can enter into the transition cushion chamber earlier, let the transition cushion chamber to the medium buffering who carries for the blast pipe, reduce the impact of medium air current, the air current noise has the reduction of very big degree.

Description

Compressor and air conditioning unit

Technical Field

The utility model relates to a refrigeration plant technical field particularly, relates to a compressor and air conditioning unit.

Background

The screw unit is generally applied to the central air conditioner due to the characteristics of high efficiency, high reliability, few assembling parts, easiness in maintenance and the like. However, with the development of technology, the demand of customers on living comfort level is higher and higher, and the demand of air conditioner noise is also increased. The problem of noise of the screw machine is a great problem to be solved urgently.

The existing screw compressor has larger exhaust noise, and the common noise reduction measure is to add a silencer, and the size of the silencer is related to the frequency of the airflow needing to be attenuated. Fig. 1 is a graphical representation of the noise spectrum where the peak around 500Hz is the largest, which requires sufficient space inside the compressor to place the silencer, resulting in a larger compressor. The prior technical scheme is difficult to achieve the aim of reducing the noise of the compressor while controlling the volume of the compressor.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a compressor and air conditioning unit to solve the big technical problem of exhaust noise that prior art compressor exists.

The embodiment of the application provides a compressor, including casing and the blast pipe that links to each other with the casing, the part that links to each other with the blast pipe on the casing is formed with the transition cushion chamber, and the transition cushion chamber is used for cushioning the medium that carries for the blast pipe.

In one embodiment, the end of the exhaust pipe is provided with a plurality of branch holes for changing the flow direction of the airflow.

In one embodiment, the plurality of diverter holes are in multiple rows and are arranged in a staggered arrangement.

In one embodiment, the housing includes a housing and a bearing seat coupled to the housing, and the transition buffer cavity is formed in the bearing seat.

In one embodiment, two transition buffer cavities are formed on the bearing seat, and two exhaust pipes are respectively connected with the two transition buffer cavities.

In one embodiment, the compressor is a screw compressor.

In one embodiment, the compressor is a twin screw compressor comprising a male rotor and a female rotor, the male rotor and the female rotor corresponding to the two transition buffer chambers, respectively.

In one embodiment, the male and female rotors are arranged in a vertical direction and the male and female rotors are located in the vertical direction at the center of gravity of the housing.

In one embodiment, the compressor further comprises a slide valve, the slide valve being disposed on the left or right side of the male and female rotors.

The application also provides an air conditioning unit, which comprises a compressor, wherein the compressor is the compressor.

In the above embodiment, before the gas generated by the housing needs to be discharged from the exhaust pipe, the gas enters the transition buffer cavity first, so that the transition buffer cavity buffers the medium conveyed to the exhaust pipe, the impact of the medium gas flow is reduced, and the gas flow noise is reduced to a great extent.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a graphical illustration of a noise spectrum plotted for a prior art compressor;

fig. 2 is a schematic front sectional structural view of an embodiment of a compressor according to the present invention;

FIG. 3 is a schematic top cross-sectional structural view of the compressor of FIG. 2;

FIG. 4 is a schematic view of the compressor of FIG. 2 at the discharge line;

fig. 5 is a side sectional structural schematic view of the compressor of fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

Fig. 2 shows an embodiment of the compressor of the present invention, which includes a casing 10 and an exhaust pipe 20 connected to the casing 10, wherein a transition buffer cavity 121 is formed at a portion of the casing 10 connected to the exhaust pipe 20, and the transition buffer cavity 121 is used for buffering a medium delivered to the exhaust pipe 20.

Use the technical scheme of the utility model, before the gas that produces when casing 10 need be discharged from blast pipe 20, can enter into transition cushion chamber 121 earlier, let transition cushion chamber 121 to the medium buffering who carries for blast pipe 20, reduce the impact of medium air current, the air current noise has the reduction of very big degree.

As a more preferable embodiment, as shown in fig. 3 and 4, a plurality of branch holes 21 for changing the flow direction of the air flow are opened at the end of the exhaust pipe 20. After the air flow passes through the transition buffer chamber 121, the pulsation of the air flow is attenuated to a certain extent by the transition buffer chamber 121. Then the gas flows out through a plurality of diversion holes 21 which change the flow direction of the gas flow at the tail end of the exhaust pipe 20, the flow direction of the gas is changed through the diversion holes 21, the gas in the opposite direction is increased, the pulse peak value of the gas can be reduced by the gas hedging, and the noise value of the gas flow is further reduced. After the compressed gas is attenuated twice through the transition buffer cavity 121 and the diversion holes 21, the noise of the gas flow can be greatly reduced. More preferably, as shown in fig. 4, the plurality of branch holes 21 are arranged in a plurality of rows and are offset. When in use, the end of the exhaust pipe 20 is disposed in the oil drum, and can be matched with the inner wall of the oil drum to generate interference airflow so as to reduce the noise value of the airflow.

Alternatively, as shown in fig. 2 and 3, in the solution of the present embodiment, the housing 10 includes a machine body 11 and a bearing seat 12 connected to the machine body 11, and the transition buffer cavity 121 is formed on the bearing seat 12. Specifically, as shown in fig. 2, in the technical solution of the present embodiment, two transition buffer cavities 121 are formed on the bearing seat 12, and two exhaust pipes 20 are respectively connected to the two transition buffer cavities 121. In use, the two transition buffer chambers 121 may buffer the airflow to be introduced into the two exhaust pipes 20, respectively, so as to reduce noise.

It should be noted that the technical solution of the present invention is particularly suitable for a screw compressor. Optionally, the compressor is a twin-screw compressor, and includes a male rotor and a female rotor, which correspond to the two transition buffer cavities 121, respectively.

As a more preferable embodiment, as shown in fig. 5, in the solution of the present embodiment, the male rotor and the female rotor are arranged in the vertical direction, and the male rotor and the female rotor are located in the vertical direction in which the center of gravity of the housing 10 is located. Because the male rotor and the female rotor are arranged along the vertical direction and are positioned on the vertical direction of the gravity center of the shell, the rotating centers of the male rotor and the female rotor are also positioned on the vertical direction of the gravity center of the shell, so that the eccentric vibration caused by the deviation of the rotating centers of the male rotor and the female rotor relative to the vertical direction of the gravity center of the shell is avoided, the vibration of the compressor is reduced, and the stability of the compressor in the operation process is ensured.

In the conventional upper or lower slide valve structure, the internal exhaust space of the compressor is compact due to the need to reserve enough positions for the slide valves, and the proper transition buffer chamber 121 and exhaust pipe 20 cannot be designed. More preferably, in the solution of the present embodiment, the compressor further comprises a slide valve 30, and the slide valve 30 is disposed on the left side of the male rotor and the female rotor. As an alternative embodiment not shown in the figures, the slide valve 30 may also be arranged on the right side of the male and female rotors. The slide valve 30 is of a side-mounted structure, and can fully utilize the exhaust space of the compressor. From the overall structure, the two transition buffer chambers 121 and the exhaust pipe 20 are located above and below the slide valve 30, respectively. According to the utility model relates to a two transition cushion chamber 121 can set up a blast pipe 20 that links to each other as the cushion chamber at every cushion chamber to reach the purpose of optimum reduction compressor noise.

According to the technical scheme of the utility model, when not increasing the compressor volume, can effectively reduce the helical-lobe compressor noise.

The utility model also provides an air conditioning unit, including foretell screw compressor. By adopting the screw compressor, the air conditioning unit can operate with lower noise and more stably.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Compressor, comprising a shell (10) and a gas outlet pipe (20) connected to the shell (10), characterized in that the part of the shell (10) connected to the gas outlet pipe (20) is formed with a transition buffer chamber (121), the transition buffer chamber (121) being used for buffering the medium delivered to the gas outlet pipe (20).

2. The compressor of claim 1, wherein the end of the exhaust pipe (20) is opened with a plurality of branch holes (21) for changing the flow direction of the air flow.

3. The compressor of claim 2, wherein the plurality of flow distribution holes (21) are arranged in a plurality of rows and offset.

4. Compressor according to claim 1, characterized in that said shell (10) comprises a block (11) and a bearing seat (12) associated with said block (11), said transition buffer chamber (121) being formed on said bearing seat (12).

5. The compressor as claimed in claim 4, wherein two transition buffer chambers (121) are formed on the bearing housing (12), and two exhaust pipes (20) are respectively connected to the two transition buffer chambers (121).

6. The compressor of claim 5, wherein the compressor is a screw compressor.

7. The compressor according to claim 5, characterized in that it is a twin-screw compressor comprising a male rotor and a female rotor, respectively corresponding to the two transition buffer chambers (121).

8. Compressor according to claim 7, characterized in that the male and female rotors are arranged in a vertical direction and in that they are located in the vertical direction in which the centre of gravity of the housing (10) is located.

9. The compressor of claim 8, further comprising a slide valve (30), the slide valve (30) being disposed on either the left or right side of the male and female rotors.

10. Air conditioning assembly comprising a compressor, characterized in that it is a compressor according to any one of claims 1 to 9.