CN109139478B - Compressor with cooling structure - Google Patents

Abstract

The present invention provides a compressor with a cooling structure, which solves the technical problem of heat dissipation of the compressor. The technical solution adopted includes: a compressor body, the compressor body has a first shell, and also includes: a second shell, which is arranged outside the first shell, and a cavity is formed between the first shell and the second shell; a cooling circulation system, including a cooling circulation pipeline arranged in the cavity. The present invention sets an inner and outer double-layer shell structure, and sets a cooling circulation pipeline in the cavity between the inner and outer shells. When the compressor is working at full load for a long time, the power source is automatically turned on, and the heat is taken away through the cooling circulation pipeline, so that the temperature of the compressor is maintained in a certain temperature range, thereby improving the working efficiency of the compressor. It can effectively prevent the compressor from working for a long time due to excessive temperature, reduced performance, carbonization of refrigeration oil or overload tripping, etc. It can improve the heat exchange speed with the outside world when the compressor works at full load for a long time.

Description

A compressor with cooling structure

Technical Field

The invention relates to the technical field of compressors, and in particular to a compressor with a cooling structure.

Background Art

At present, the outer shell of conventional compressors has only one layer, the inner side of which is in direct contact with the pump assembly, motor, refrigerant gas, etc., and the outer side is in direct contact with the surrounding environment, and there is no cooling device or measure inside the compressor. When the compressor works at full load for a long time, the temperature of each component rises. If this heat cannot be dissipated in time, it may cause the compressor performance to decrease, the refrigeration oil to carbonize, the overload protector to start and shut down, etc. Therefore, when the compressor works at full load for a long time, it is very important to solve the heat dissipation problem.

Summary of the invention

Therefore, the present invention aims to solve the technical problem of heat dissipation of the compressor, thereby providing a compressor with a cooling structure.

In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention includes:

A compressor with a cooling structure includes a compressor body, wherein the compressor body has a first shell, and also includes: a second shell, which is arranged outside the first shell, and a cavity is formed between the first shell and the second shell; a cooling circulation system, including a cooling circulation pipeline arranged in the cavity.

The cooling circulation system further includes a compressor cooling circulation pipeline arranged in the compressor body.

At least one non-rotating fixed component in the compressor body is provided with a pipeline through hole, and the pipeline in the compressor cooling circulation pipeline is arranged through the pipeline through the pipeline through hole.

The cooling circulation pipeline in the cavity is communicated with the cooling circulation pipeline of the compressor.

A power source for driving the circulation of the medium in the cooling circulation system is arranged outside the second shell.

The compressor body includes: a stator assembly; a rotor assembly; a pump body assembly having a compression inner cavity, which is arranged in the first shell; the compressor cooling circulation pipeline includes a first section of pipeline that avoids the rotor assembly and passes through the pipeline through hole on the stator assembly, and a second section of pipeline that avoids the compression inner cavity and passes through the pipeline through hole on the pump body assembly; the cavity cooling circulation pipeline includes a third section of pipeline arranged outside the first shell, the two ends of the second section of pipeline are respectively connected to the first end of the first section of pipeline and the first end of the third section of pipeline, and the second end of the first section of pipeline is connected to the second end of the third section of pipeline.

Both ends of the third section of the pipeline penetrate through the wall thickness of the second shell and are connected with the inlet and outlet of the power source.

The third section of pipeline is spirally arranged around the outer wall of the first shell.

The pump body assembly includes: a cylinder and an upper flange and a lower flange arranged at the axial ends of the cylinder, the cylinder and the upper and lower flanges enclose the compression inner cavity; a rotating assembly, which is arranged in the compression inner cavity and connected to the rotor assembly; the second section of the pipeline includes: two first branches, the first branch is arranged through the pipeline through hole on the cylinder and the pipeline through hole on the upper and lower flanges, and the first ends of the two first branches are respectively connected to the first end of the first section and the first end of the third section; a second branch is axially arranged around the lower flange on the wall thickness of the lower flange, and the two ends of the second branch are respectively arranged between the second ends of the two first branches.

The pump body assembly also includes an upper muffler arranged on the upper flange, and the first end of the first branch segment is arranged through a pipeline through hole of the upper muffler.

The cooling circulation system further includes: a fourth section of pipeline, which avoids the rotor assembly and passes through another pipeline through hole on the stator assembly, and two ends of the fourth section of pipeline are respectively connected to two ends of the third section of pipeline.

The power source includes a circulation pump and a medium box with a cooling medium.

The technical solution of the present invention has the following advantages:

1. The compressor provided by the present invention includes a compressor body, wherein the compressor body has a first shell, and also includes: a second shell, which is arranged outside the first shell, and a cavity is formed between the first shell and the second shell; a cooling circulation system, including a cooling circulation pipeline arranged in the cavity.

The present invention sets up an inner and outer double-layer shell structure, and sets a cooling circulation pipeline in the cavity between the inner and outer shells. When the compressor is working at full load for a long time, the power source is automatically turned on, and the heat is taken away through the cooling circulation pipeline, so that the temperature of the compressor is kept in a certain temperature range, thereby improving the working efficiency of the compressor. It can effectively prevent the compressor from working for a long time due to excessive temperature, reduced performance, carbonization of refrigeration oil, or overload tripping, etc. It can improve the heat exchange speed with the outside world when the compressor is working at full load for a long time.

2. The compressor provided by the present invention, the cooling circulation system also includes a compressor cooling circulation pipeline arranged in the compressor body. The cooling circulation pipeline in the cavity is connected to the compressor cooling circulation pipeline inside the compressor, and then connected to a circulation pump and a medium box outside the compressor. The working fluid in the circulation pipeline and the medium box can be water, nanofluid, or other working fluids, because nanofluid materials have stronger heat storage capacity, which is recommended.

3. In the compressor provided by the present invention, the third section of the pipeline is arranged in a spiral shape around the outer wall of the first shell. The spiral cooling pipe structure can fully utilize the space in the cavity, increase the cooling area, and improve the cooling efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of the structure of a compressor in Embodiment 1 of the present invention;

Description of reference numerals:

1-first housing; 11-second housing; 2-stator assembly; 3-rotor assembly; 4-pump assembly; 41-cylinder; 42-upper flange; 43-lower flange; 44-upper muffler; 5-cooling circulation system; 51-first section of pipeline; 52-second section of pipeline; 53-third section of pipeline; 54-fourth section of pipeline; 55-circulating pump; 56-medium box.

DETAILED DESCRIPTION

The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in Fig. 1, the present invention provides a compressor with a cooling structure, including a compressor body, wherein the compressor body has a first shell 1, a second shell 11, and a cooling circulation system 5. The second shell 11 is arranged outside the first shell 1, and a cavity is formed between the first shell 1 and the second shell 11, wherein the cooling circulation system 5 includes a cooling circulation pipeline arranged in the cavity.

The present invention sets up an inner and outer double-layer shell structure, and sets a cooling circulation pipeline in the cavity between the inner and outer shells. When the compressor is working at full load for a long time, the power source is automatically turned on, and the heat is taken away through the cooling circulation pipeline, so that the temperature of the compressor is kept in a certain temperature range, thereby improving the working efficiency of the compressor. It can effectively prevent the compressor from working for a long time due to excessive temperature, reduced performance, carbonization of refrigeration oil, or overload tripping, etc. It can improve the heat exchange speed with the outside world when the compressor is working at full load for a long time.

As an improved implementation, the cooling circulation system 5 also includes a compressor cooling circulation pipeline arranged in the compressor body. The power source includes a circulation pump 55 and a medium box 56 with a cooling medium. The cooling circulation pipeline in the cavity is connected to the compressor cooling circulation pipeline inside the compressor, and then the circulation pump 55 and the medium box 56 outside the compressor are externally connected. The working fluid in the circulation pipeline and the medium box can be water, nanofluid, or other working fluids. Because nanofluid materials have stronger heat storage capacity, it is recommended. Before the cooling circulation pipeline is set in the compressor body, at least one non-rotating fixed component in the compressor body is provided with a pipeline through hole, and the pipeline in the compressor cooling circulation pipeline is set through the pipeline through the pipeline through the hole.

In addition, as shown in FIG. 1 , the medium in the cooling circulation system 5 is driven to circulate by a power source, and the power source is disposed outside the second housing 11 .

More specifically, as shown in FIG1 , the compressor body includes a stator assembly 2, a rotor assembly 3 and a pump assembly 4 arranged in the first housing, and the pump assembly 4 has a compression inner cavity. Based on this, the compressor cooling circulation pipeline includes a first section of pipeline 51 that avoids the rotor assembly 3 and passes through the pipeline through hole on the stator assembly 2, and a second section of pipeline 52 that avoids the compression inner cavity and passes through the pipeline through hole on the pump assembly 4. In addition, the cavity cooling circulation pipeline includes a third section of pipeline 53 arranged outside the first housing 1, and the two ends of the second section of pipeline 52 are respectively connected to the first end of the first section of pipeline 51 and the first end of the third section of pipeline 53, and the second end of the first section of pipeline 51 is connected to the second end of the third section of pipeline 53.

As a specific implementation, as shown in FIG. 1 , both ends of the third section pipeline 53 penetrate through the wall thickness of the second shell 11 and are connected to the inlet and outlet of the power source.

As an improved implementation, as shown in FIG. 1 , the third section of pipeline 53 is spirally arranged around the outer wall of the first shell.

As a further improved implementation, the cooling circulation system 5 further includes: a fourth section of pipeline 54, which is arranged to avoid the rotor assembly 3 and pass through another pipeline through hole on the stator assembly 2, and the two ends of the fourth section of pipeline 54 are respectively connected to the two ends of the third section of pipeline 53. The arrangement of the fourth section of pipeline 54 can further increase the cooling circulation area of the compressor cooling circulation pipeline and enhance the cooling efficiency. The fourth section of pipeline 54 can be provided with N groups, which can be arranged along the axial direction of the compressor body or slightly inclined. In this embodiment, the fourth section of pipeline 54 is preferably provided with 1 group, and is arranged along the axial direction of the compressor body.

As a specific implementation, the first section of the pipeline 51 and the fourth section of the pipeline 54 can be arranged in a straight line or in a curved shape. In this embodiment, a straight line is preferably adopted.

As a specific embodiment, as shown in Figure 1, the pump body assembly 4 in the present invention includes: a cylinder 41 and an upper flange 42 and a lower flange 43 arranged at the axial ends of the cylinder 41, the cylinder 41 and the upper and lower flanges surround the compression inner cavity; a rotating assembly, arranged in the compression inner cavity, connected to the rotor assembly 3; the second section of the pipeline 52 includes: two first branches, the first branch segments are arranged through the pipeline through holes on the cylinder and the pipeline through holes on the upper and lower flanges, and the first ends of the two first branches are respectively connected to the first end of the first segment and the first end of the third segment; a second branch segment, axially arranged around the lower flange on the wall thickness of the lower flange, and the two ends of the second branch segment are respectively arranged between the second ends of the two first branches.

In the present invention, the pump body assembly 4 further includes an upper muffler 44 disposed on the upper flange, and the first end of the first branch segment is disposed through a pipeline through hole of the upper muffler 44 .

As a specific implementation, the power source includes a circulation pump 55 and a medium box 56 with a cooling medium.

When the cooling circulation system 5 of the present invention is working, when the compressor is working at full load for a long time, the circulation pump 55 is automatically turned on to drive the cooling medium in the pipeline to circulate in the cooling circulation system 5 to take away the heat of the compressor. The medium of the cooling circulation system 5 enters the first end of the third section pipeline 53 from the medium box 56, and then enters the first branch section and the fourth section 54 in the second section pipeline 52 in two ways, and the cooling medium in the fourth section 54 is connected with the return section of the third section pipeline 53 from the other end; the cooling medium entering the first branch section passes through the second finger end and the other first branch section in turn to enter the first section pipeline 51, and the cooling medium entering the first section pipeline 51 enters the third section pipeline 53 from the other end of the first end pipeline 51, and flows back to the medium box 56 after passing through the third section pipeline 53, and the compressor is cooled by this cycle.

Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims (9)

1. A compressor with a cooling structure, comprising a compressor body, wherein the compressor body has a first shell (1), and further comprising: A second shell (11) is arranged outside the first shell (1), and a cavity is formed between the first shell (1) and the second shell (11); A cooling circulation system (5) comprising an intra-cavity cooling circulation pipeline arranged in the cavity; The cooling circulation system (5) further comprises a compressor cooling circulation pipeline arranged in the compressor body; At least one non-rotating fixed component in the compressor body is provided with a pipeline through hole, and the pipeline in the compressor cooling circulation pipeline is arranged through the pipeline through the pipeline through hole; The compressor body comprises: a stator assembly (2); a rotor assembly (3); and a pump assembly (4) provided in the first shell, the pump assembly having a compression inner cavity; The compressor cooling circulation pipeline comprises a first section of pipeline (51) which avoids the rotor assembly (3) and passes through the pipeline through hole on the stator assembly (2), and a second section of pipeline (52) which avoids the compression inner cavity and passes through the pipeline through hole on the pump body assembly (4); The cooling circulation pipeline in the cavity is communicated with the cooling circulation pipeline of the compressor. 2. The compressor with a cooling structure according to claim 1, characterized in that: A power source for driving the circulation of the medium in the cooling circulation system (5) is arranged outside the second housing (11). 3. The compressor with a cooling structure according to claim 2, characterized in that: The cooling circulation pipeline in the cavity comprises a third section pipeline (53) arranged outside the first shell, two ends of the second section pipeline (52) are respectively connected to the first end of the first section pipeline (51) and the first end of the third section pipeline (53), and the second end of the first section pipeline (51) is connected to the second end of the third section pipeline (53). 4. The compressor with a cooling structure according to claim 3, characterized in that both ends of the third section pipeline (53) penetrate the wall thickness of the second shell (11) and are connected to the inlet and outlet of the power source. 5. The compressor with a cooling structure according to claim 3, characterized in that the third section of the pipeline (53) is arranged in a spiral shape around the outer wall of the first shell. 6. The compressor with a cooling structure according to claim 3, characterized in that the pump body assembly (4) comprises: A cylinder (41) and an upper flange (42) and a lower flange (43) arranged at two axial ends of the cylinder (41), wherein the cylinder (41), the upper flange (42) and the lower flange (43) enclose the compression inner cavity; A rotating assembly, disposed in the compression inner chamber and connected to the rotor assembly; The second section of pipeline (52) comprises: Two first branch sections, the first branch sections passing through the pipeline through hole on the cylinder and the pipeline through holes on the upper flange (42) and the lower flange (43), the first ends of the two first branch sections being respectively connected to the first end of the first section pipeline (51) and the first end of the third section pipeline (53); The second branch segment is axially arranged on the wall thickness of the lower flange around the lower flange, and the two ends of the second branch segment are respectively arranged between the second ends of the two first branch segments. 7. The compressor with a cooling structure according to claim 6, characterized in that the pump body assembly (4) further comprises an upper muffler (44) arranged on the upper flange, and the first end of the first branch segment is arranged through a pipe through hole of the upper muffler (44). 8. The compressor with a cooling structure according to claim 6, characterized in that the cooling circulation system (5) further comprises: a fourth section of pipeline (54), which avoids the rotor assembly (3) and passes through another pipeline through hole on the stator assembly (2), and the two ends of the fourth section of pipeline (54) are respectively connected to the two ends of the third section of pipeline (53). 9. The compressor with a cooling structure according to claim 2, characterized in that the power source comprises a circulation pump (55) and a medium box (56) containing a cooling medium.