CN110762005A

CN110762005A - Compression module, compressor and refrigeration plant

Info

Publication number: CN110762005A
Application number: CN201810827000.7A
Authority: CN
Inventors: 车书刚
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd
Priority date: 2018-07-25
Filing date: 2018-07-25
Publication date: 2020-02-07

Abstract

The invention discloses a compression module, a compressor and refrigeration equipment, wherein the compression module comprises: cylinder body, roller and gleitbretter. A cavity with an axis along the vertical direction is formed in the cylinder body, and the upper side and the lower side of the cylinder body are respectively sealed by a cover body; the rolling sleeve is eccentrically arranged in the cylinder body; the slide sheet and the rolling sleeve are matched in the cylinder body to divide a suction side and an exhaust side, wherein a heat insulation layer is arranged on at least one cover body at a position opposite to the cavity of the cylinder body. According to the compression module for the compressor, disclosed by the embodiment of the invention, the heat transfer can be reduced while a closed space is formed, the phenomenon that gas in the compression module is heated is greatly improved, and the efficiency of the compressor is improved.

Description

Compression module, compressor and refrigeration plant

Technical Field

The invention relates to the technical field of compression, in particular to a compression module for a compressor, the compressor with the compression module and refrigeration equipment with the compressor.

Background

With the pursuit of people for comfortable life, the power consumption for refrigerating the air conditioner in summer and heating the air conditioner in winter is always larger, so that the efficient air conditioner is the pursuit of scientific research institutions and heating and ventilation air conditioning enterprises, the compressor is used as the heart of the air conditioner, and the improvement of the efficiency is the key for improving the efficiency of the air conditioner.

The loss that the electricity machine power brought, the loss that low temperature gas caused by the wall heating in the compressor compression chamber accounts for than the biggest in the efficiency loss of compressor, and the working process of compressor is a changeable process, and gas has the heat transfer to take place simultaneously at the in-process of compressing promptly, and the refrigerant in the compression chamber is heated, has caused extra loss.

Disclosure of Invention

An object of the present invention is to provide a compression module for a compressor, which improves the efficiency of the compressor.

A second object of the present invention is to provide a compressor having the compression module.

A third object of the present invention is to propose a refrigeration plant having such a compressor.

A compression module for a compressor according to an embodiment of the present invention includes: cylinder body, roller and gleitbretter. A cavity with an axis along the vertical direction is formed in the cylinder body, and the upper side and the lower side of the cylinder body are respectively sealed by a cover body; the rolling sleeve is eccentrically arranged in the cylinder body; the slide sheet and the rolling sleeve are matched in the cylinder body to divide a suction side and an exhaust side, wherein a heat insulation layer is arranged on at least one cover body at a position opposite to a cavity of the cylinder body.

According to the compression module for the compressor, disclosed by the embodiment of the invention, the heat transfer can be reduced while a closed space is formed, the phenomenon that gas in the compression module is heated is greatly improved, and the efficiency of the compressor is improved.

In addition, the compression module for a compressor according to the above embodiment of the present invention may further have the following additional technical features:

in some embodiments, a surface of the cover opposite the cavity in the cylinder block on which the insulating layer is disposed is covered with an insulating layer.

In some embodiments, the surface of the cover body opposite to the cavity in the cylinder body, on which the thermal insulation layer is disposed, is recessed and receives the thermal insulation layer.

In some embodiments, the entirety of the cover is configured as an insulating layer.

In some embodiments, the thermal insulation layer is in the form of a plate or film having a thermal conductivity λ less than 6W/(m.k) at 100 ℃.

In some embodiments, the insulating layer is embedded within the cover.

In some embodiments, the insulation layer is embedded in the cover body by means of casting or structural fixing.

In some embodiments, the thermal barrier layer comprises a major component of an organic polymeric material or an inorganic non-metallic material.

In some embodiments, the surface roughness of the cover is no greater than rz6.4.

In some embodiments, the cylinder body comprises a plurality of cylinder bodies, and both ends of each cylinder body are closed by two cover bodies.

In some embodiments, a plurality of the cylinders are arranged at intervals in the up-down direction, and a cover is shared between two adjacent cylinders.

The compressor according to the embodiment of the present invention includes: the device comprises a shell, a driving module and a compression module. The driving module is arranged in the shell; the compression module is arranged in the shell, the compression module is used for the compressor according to the above description, and a roller in the compression module is connected with the driving module.

In some embodiments, the compressor further comprises: and the gas-liquid separator is communicated with the cylinder body.

The refrigeration equipment comprises the compressor.

Drawings

Fig. 1 is a schematic view of a compressor according to an embodiment of the present invention.

Fig. 2 is a schematic view of a compression module for a compressor according to one embodiment of the present invention.

Fig. 3 is a schematic view of a compression module for a compressor according to one embodiment of the present invention.

Fig. 4 is a schematic view of a cover for a compression module of a compressor according to an embodiment of the present invention.

Fig. 5 is a schematic view of an insulation layer for a compression module of a compressor according to an embodiment of the present invention.

Reference numerals:

the compressor 100, the shell 1, the driving module 2, the compression module 3, the cylinder 31, the roller sleeve 32, the sliding sheet 33, the cover 34, the groove 301, the heat insulation layer 35, the crankshaft 37 and the gas-liquid separator 4.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1 to 4, according to a compression module 3 for a compressor 100 according to an embodiment of the present invention, the compression module 3 includes: cylinder 31, roller 32 and slide 33.

Specifically, a cavity with an axis extending in the vertical direction is formed in the cylinder 31, both the upper and lower sides of the cylinder 31 are covered with the cover 34, and the combination of the cylinder 31 and the cover 34 forms a working chamber in the cylinder 31. The roller 32 is eccentrically disposed in the cylinder 31. The sliding sheet 33 is matched with the roller sleeve 32 to divide the suction side and the exhaust side in the cylinder 31, in the eccentric movement process of the roller sleeve 32, the air is sucked from the suction side and then is exhausted from the exhaust side,

advantageously, at least one cover 34 has a thermal insulation layer 35 in a position opposite to the cavity of the cylinder 31. That is, at least one of the covers 34 of the closed cylinder 31 is provided with the heat insulating layer 35.

According to the compression module 3 for the compressor 100 provided by the embodiment of the invention, the heat transfer can be reduced while a closed space is formed, the phenomenon that the gas in the compression module 3 is heated is greatly improved, and the efficiency of the compressor 100 is improved.

In addition, the cover 34 in the present invention may be a bearing, or may have another structure, for example, in the single cylinder compression module 3, both ends of the cylinder block 31 may be sealed by bearings, and therefore, the covers 34 that close both upper and lower sides of the cylinder block 31 may be bearings; in the multi-cylinder compression module 3, if the plurality of cylinders 31 are arranged up and down, the upper sides and the lower sides of the plurality of cylinders 31 are both closed by bearings, and elements such as bearings or partition plates may be disposed between two adjacent cylinders 31 to partition the cylinders 31, and in this case, both the bearings and the partition plates may be understood as the cover 34 in the present application.

As shown in fig. 2 and 3, in some embodiments, the surface of the head 34 on which the insulation layer 35 is provided, opposite to the cavity in the cylinder 31, is covered with the insulation layer 35. Heat insulation can be effectively performed, and heat transfer at a position such as between the suction side and the exhaust side and between the suction side and the internal space of the casing 1 can be reduced.

Further, the surface of the lid body 34 provided with the heat insulating layer 35 opposite to the cavity in the cylinder body 31 is recessed and accommodates the heat insulating layer 35. Facilitating the engagement of the cover 34 with the cylinder 31.

In other embodiments of the present invention, the entirety of the cover 34 is configured as an insulation layer 35. That is, the entire cover 34 is the heat insulating layer 35. In other words, the cover 34 is made of a heat insulating material.

Further, the cylinder 31 may be provided with the heat insulating layer 35, or the cylinder 31 may be made of a heat insulating material.

In some embodiments of the present invention, the thermal insulation layer 35 is in the form of a plate or film having a thermal conductivity λ of less than 6W/(m.k) at 100 ℃.

In some embodiments of the invention, the insulation layer 35 is embedded within the cover 34, as shown in fig. 2 and 3.

Further, the insulation layer 35 is embedded in the cover 34 by means of casting or structural fixing. The cover 34 may be provided with a recessed structure and the heat insulating layer 35 may be provided in the recessed structure, or the entire heat insulating layer 35 may be embedded in the cover 34, that is, a completely closed space is formed in the cover 34 and the heat insulating layer 35 is provided in this space. The cover 34 and the heat insulating layer 35 may be assembled together by casting or structural fixing.

As shown in fig. 4 and 5 of the present application, the surface of the cover 34 for forming the working chamber has a groove 301, and the thermal insulation layer 35 shown in fig. 5 is embedded in the groove 301, wherein the shape of the thermal insulation layer 35 can be completely matched with the shape of the groove 301.

In addition, after the insulating layer 35 is mounted, the surface of the cover 34 on which the insulating layer 35 is mounted may be a flat surface.

Advantageously, the main component of the thermal insulation layer 35 comprises an organic polymer material or an inorganic non-metallic material.

In some embodiments of the present invention, the surface roughness of the cover 34 is no greater than rz6.4. The sealing effect of the working cavity can be effectively improved.

As shown in fig. 2 and 3, in some embodiments of the present invention, the cylinder 31 includes a plurality of cylinders 31, and both ends of each cylinder 31 are closed by two covers 34.

Further, a plurality of cylinders 31 are arranged at intervals in the up-down direction, and one cover 34 is shared between two adjacent cylinders 31.

As shown in fig. 1, and in conjunction with fig. 2 to 5, a compressor 100 according to an embodiment of the present invention includes: a housing 1, a drive module 2 and a compression module 3. The driving module 2 is arranged in the shell 1; the compression module 3 is arranged in the housing 1, the compression module 3 being a compression module 3 for a compressor 100 according to the above, the rollers 32 in the compression module 3 being connected to the drive module 2.

According to the compressor 100 of the embodiment of the invention, the compression module 3 is arranged, so that the efficiency of the compressor 100 can be effectively improved.

As shown in fig. 1, in some embodiments, the compressor 100 further comprises: the gas-liquid separator 4, the gas-liquid separator 4 communicates with the cylinder 31.

The refrigeration equipment according to the embodiment of the present invention includes the compressor 100 according to the foregoing description.

The compressor 100 claimed in the present invention may be a rotary compressor 100, comprising a housing 1, a driving module 2 (preferably an electric motor), a compression module 3, a gas-liquid separator 4, wherein the compression module 3 is composed of a cylinder 31 (or referred to as a cylinder), a roller sleeve 32, a crankshaft 37 and flanges, one or more flanges of the compression module 3 are located on the surface of a compression cavity region, and are partially or completely composed of a thermal poor conductor material (hereinafter referred to as a thermal insulation material, or referred to as a thermal insulation layer 35) having a thermal conductivity λ at 100 ℃ satisfying: λ < 6W/(m.K).

The heat insulation material is embedded in the metal flange body in a casting or structure fixing mode to form a heat insulation area.

The main component of the heat insulation material is organic high molecular material or inorganic non-metallic material.

The surface roughness after processing is less than or equal to Rz6.4

The number of the cylinder bodies 31 is 2, and the area of any flange in the compression cavity is made of heat insulation materials.

The number of cylinders 31 is 3, and the area of one or more flanges in the compression chamber is made of a heat insulating material.

The flange is the cover 34 in the present application, that is, the flange may have the structure of the cover 34 in the present application, that is, the cover 34 is provided with the thermal insulation layer 35, or the cover 34 is made of a thermal insulation material.

The compressor 100 of the invention can reduce heat transfer while forming a closed space, greatly improve the phenomenon that the gas in the compression module 3 is heated, and improve the efficiency of the compressor 100.

The invention adopts the following design: the compression module 3 of the compressor 100 is composed of a cylinder body 31, a flange, a rolling sleeve 32, a crankshaft 37 and a sliding sheet 33, the closed space formed by the components is a working chamber of the compressor 100, the working chamber is divided into a suction side and an exhaust side by the sliding sheet 33 and the eccentric rolling sleeve 32, in the working process, the temperature of the suction side is low, the temperature of the exhaust side is high, high-temperature gas heats the flange, the flange heats low-temperature gas, and the indicating efficiency of the compressor 100 is reduced.

Meanwhile, high-temperature and high-pressure gas or high-temperature lubricating oil is also arranged outside the flange, and the flange made of metal materials cannot block heat from being transmitted into the working cavity from the outside of the working cavity. For this purpose, the metal material of the part of the flange that is in contact with the gas is replaced by a heat-insulating material, which is usually a special engineering plastic.

The implementation mode 1 is that the bearing and the plastic are fixed on the bearing in an interference fit or mechanical structure mode, and the fixed surface is machined, so that the plastic and the metal form a plane and then are assembled in the compressor 100.

The implementation mode 2 is to cast the heat insulating material on the surface of the metal substrate, then perform rough machining and precision machining on the mixed material, obtain a good surface, and then assemble the mixed material in the compressor 100.

The heat insulating material has the advantages of low heat conductivity, good mechanical property, good thermal stability, no chemical reaction with a refrigerant and lubricating oil, good wear resistance, suitability for various common working conditions of the operation of the compressor 100, and capability of meeting the design life requirement of the compressor 100.

The invention discloses a rotary compressor 100, components forming the same, and an air conditioner or a heat pump formed by the compressor 100. The compressor 100 is composed of a shell 1, a motor, a compression module 3 and a gas-liquid separator 4, wherein the compression module 3 is composed of a cylinder 31, a crankshaft 37, a roller 32 and a flange (a specific form of a cover 34), and is characterized in that one or more flanges of the compressor are positioned on the surface of a working cavity area of the compressor 100, part or all of the flanges are composed of materials with low heat conductivity, and the heat conductivity of the materials meets lambda less than or equal to 6W (m.K) at the temperature of 100 ℃.

Fig. 1 of the present invention shows a schematic structural diagram of a compressor 100, in which the overall structure of the compressor 100 is described, including a housing 1, a motor (a driving module 2), a compression module 3, and a gas-liquid separator 4, and in addition, the fluid entering the cylinder 31 in the present application is not limited to gas, and may be liquid or a gas-liquid mixture, and of course, for the compressor 100 applied to a refrigeration system such as an air conditioner, the fluid entering the cylinder 31 is gas.

The structure of the individual compression module 3 depicted in fig. 2 is schematically illustrated, wherein the compression module 3 is a double-cylinder compression module 3, which comprises two sets of compression structures arranged from top to bottom, wherein the two sets of compression structures are connected together by a same crankshaft 37, the outer side of a flange above the two sets of compression structures is covered with a silencer, the inner cavity of the silencer is communicated with the air outlet of the compression module 3, and the silencer is also provided with an outlet communicated with the inner space of the housing 1.

Fig. 3 is a schematic view of a compression module 3 according to another embodiment of the present invention, as described in fig. 2 and 3, in which the upper flange of fig. 2 is provided with the aforementioned insulation layer 35, and both the upper flange and the lower flange of fig. 3 are provided with the aforementioned insulation layer 35.

Fig. 4 shows a structure of a flange (a specific form of the cover 34) according to an embodiment of the present invention, wherein the flange has a groove 301 structure, and the thermal insulation layer 35 shown in fig. 5 can be embedded into the groove 301, wherein the structure of the thermal insulation layer 35 completely matches the shape of the groove 301, of course, according to the actual usage shape, the corresponding relationship between the thermal insulation layer 35 and the flange can be selected, and the corresponding relationship between the thermal insulation layer 35 and the groove 301 can also be set preferably according to the actual usage.

It should be noted that the cover 34 described in the present invention is a generic expression, and for example, the upper flange and the lower flange in fig. 2 can be understood as a specific form of the cover 34.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A compression module for a compressor, the compression module comprising:

the cylinder body is internally provided with a cavity with an axis along the vertical direction, and the upper side and the lower side of the cylinder body are respectively sealed by a cover body;

the rolling sleeve is eccentrically arranged in the cylinder body;

a sliding sheet which is matched with the roller sleeve and is arranged in the cylinder body to divide an air suction side and an air exhaust side,

wherein, the position that is relative with the cavity of cylinder body on at least one lid has the insulating layer.

2. The compression module for a compressor of claim 1, wherein a surface of the cover opposite the cavity in the cylinder block on which the insulation layer is disposed is covered by an insulation layer.

3. The compression module for a compressor of claim 2, wherein a surface of the cover body on which the insulation layer is disposed opposite to the cavity in the cylinder body is recessed and receives the insulation layer.

4. The compression module for a compressor of claim 1, wherein the entirety of the cover is configured as an insulation layer.

5. The compression module for a compressor according to any one of claims 1 to 4, wherein the thermal insulation layer is in a plate or film shape having a thermal conductivity λ less than 6W/(m.k) at 100 ℃.

6. The compression module for a compressor of any one of claims 1-4, wherein the insulation layer is embedded within the cover.

7. The compression module for a compressor of claim 6, wherein the insulation layer is embedded in the cover body by casting or structural fixing.

8. The compression module for a compressor of any one of claims 1-4, wherein a major component of the insulation layer comprises an organic polymeric material or an inorganic non-metallic material.

9. The compression module for a compressor of any one of claims 1-4, wherein the cover has a surface roughness of no greater than Rz6.4.

10. The compression module for a compressor according to any one of claims 1 to 4, wherein the cylinder block includes a plurality of cylinder blocks, each of which is closed at both ends by two of the covers.

11. The compression module for a compressor according to claim 10, wherein a plurality of the cylinder blocks are arranged at intervals in an up-down direction, and a cover is shared between adjacent two of the cylinder blocks.

12. A compressor, comprising:

a housing;

the driving module is arranged in the shell;

a compression module disposed within the housing, the compression module being as claimed in any one of claims 1-11 for a compressor, wherein the rollers in the compression module are connected to the drive module.

13. The compressor of claim 12, further comprising:

and the gas-liquid separator is communicated with the cylinder body.

14. Refrigeration device, characterized in that it comprises a compressor according to any one of claims 12 or 13.