CN113217391B - Horizontal compressor with oil pumping mechanism and working steps thereof - Google Patents

Abstract

The invention provides a horizontal compressor with an oil pumping mechanism and working steps thereof, wherein the horizontal compressor comprises the following steps: the compressor comprises a compressor shell, a compressor working part and an oil pumping part, wherein the compressor working part and the oil pumping part are arranged in the compressor shell, the compressor working part comprises a crankshaft assembly and a cylinder assembly, and the cylinder assembly is arranged on the crankshaft assembly; the front port of the oil pumping part is connected with the cylinder assembly, and the rear port of the oil pumping part is connected with the oil channel of the crankshaft assembly.

Description

Horizontal compressor with oil pumping mechanism and working steps thereof

Technical Field

The invention relates to the technical field of refrigeration compressors, in particular to a horizontal compressor with an oil pumping mechanism and working steps thereof.

Background

According to different placement modes, the compressor can be divided into a vertical compressor with a crankshaft placed vertically and a horizontal compressor with a crankshaft placed horizontally. The horizontal compressor is generally applied to occasions with limited height such as buses, subways, trains, showcases and the like.

The oil pumping system for the vertical compressor is not complex, the refrigerating machine oil can be conveyed to the lubricating component through a simple oil suction pipe under the action of centrifugal force, the refrigerating machine oil of the compressor is mainly concentrated at the bottom of the compressor, most of the refrigerating machine oil can be conveyed through the oil suction pipe, and no much ineffective refrigerating machine oil exists, and even if the compressor has a certain inclination angle, the oil pumping capacity is not greatly influenced, so that the oil pumping system for the vertical compressor does not need to worry about the reliability of the compressor.

For the horizontal compressor, the refrigerating machine oil is flatly paved at the lower part of the whole compressor, and the same oil quantity is obviously lower than that of the vertical compressor in the horizontal compressor, so that an oil pumping system of the horizontal compressor needs to be well designed. Under normal conditions, the oil level near the oil suction pipe needs to be lifted through design, so that the oil level height can exceed the bottom of the oil suction pipe under various extreme conditions, the oil suction pipe can suck refrigerating engine oil, and the reliable lubrication of all parts of the compressor and the reliable operation of the compressor are ensured. However, because the horizontal compressor is generally applied to a special field, the compressor has a large inclination angle, the oil level position changes in the compressor, the height of the oil level near the oil suction pipe is difficult to ensure, the oil level is completely deviated from the oil suction pipe component in extreme cases, the oil suction pipe cannot suck refrigerating machine oil well, mechanical components cannot be lubricated, and the compressor cannot normally run.

It is therefore necessary to design a horizontal compressor with an oil pumping mechanism and its working steps.

Disclosure of Invention

According to the technical problem that the mechanical parts cannot be lubricated due to the fact that the existing horizontal compressor cannot absorb the refrigerating machine oil well, the horizontal compressor with the oil pumping mechanism and the working steps of the horizontal compressor are provided. The invention mainly utilizes the oil pumping mechanism which is arranged on the horizontal compressor and can absorb lubricating oil with different liquid levels, thereby playing the role of effectively lubricating mechanical parts in the horizontal compressor.

The invention adopts the following technical means:

a horizontal compressor having an oil pumping mechanism, comprising: the compressor comprises a compressor shell, a compressor working part and an oil pumping part, wherein the compressor working part and the oil pumping part are arranged in the compressor shell, the compressor working part comprises a crankshaft assembly and a cylinder assembly, and the cylinder assembly is arranged on the crankshaft assembly; the front port of the oil pumping part is connected with the cylinder assembly, and the rear port of the oil pumping part is connected with the oil channel of the crankshaft assembly.

Further, the cylinder assembly comprises an air suction component, an air discharge component, a lower supporting component, a primary cylinder, a middle supporting component, a secondary cylinder and an upper supporting component, wherein the upper supporting component, the secondary cylinder, the middle supporting component, the primary cylinder and the lower supporting component are sequentially arranged on the crankshaft assembly, the air suction component and the air discharge component are arranged on the compressor shell and are connected with the cylinder assembly inside the compressor shell, an air discharge cavity is formed in the lower supporting component, and the front end of the oil pumping part is connected with the air discharge cavity.

Further, the oil pumping part is a tubular oil pumping part, the tubular oil pumping part is of one or more sections of tubular structures, and when the tubular oil pumping part is of a multi-section tubular structure, the multi-section tubular structures are mutually nested.

Further, when the tubular oil pumping component is a multi-section tubular structure, one or more oil absorption gaps are arranged between the mutually nested multi-section tubular structures.

Further, the tubular oil pumping component is provided with one or more oil suction holes, and the shape of the oil suction holes is round, elliptic, various circulation hole shapes and the like.

The invention also provides a working step of the horizontal compressor with the oil pumping mechanism, which is characterized by comprising the following steps:

step S1: the refrigerant enters a primary cylinder from the air suction part, is compressed in the primary cylinder and is discharged through an exhaust valve on the lower supporting part;

step S2: the discharged refrigerant enters the oil pumping component, a part of refrigerating machine oil exists in the oil pumping component due to the oil suction holes on the oil pumping component, the flowing refrigerant can drive the refrigerating machine oil to enter the oil channel of the crankshaft assembly to flow in the crankshaft assembly and enter the lubrication surfaces of all mechanical components, and the reliable operation of the compressor is protected;

step S3: the refrigerant continues to enter the secondary cylinder, the primary cylinder and the secondary cylinder are isolated by the middle support member, the refrigerant continues to be compressed in the secondary cylinder, and the refrigerant is discharged from the compressor through the discharge member mounted on the upper support member.

Compared with the prior art, the invention has the following advantages:

1. according to the horizontal compressor with the oil pumping mechanism and the working steps thereof, the oil pumping mechanism is arranged, the oil pumping mechanism is provided with the plurality of oil suction holes, and refrigerating machine oil in the oil pumping mechanism is conveyed through the flowing of the refrigerant, so that the stable conveying of the refrigerating machine oil under any working condition is ensured, the conveying of the refrigerant is more reliable than that of a conventional mechanical oil pumping mechanism, the refrigerant is not easy to damage, the fluidity is stronger, and the compressor is more reliable to operate.

2. The invention provides a horizontal compressor with an oil pumping mechanism and working steps thereof, wherein the oil pumping mechanism is provided with a plurality of oil suction holes, oil pumping components can be arranged in the whole shell of the compressor, the oil suction holes can be arranged at any position, refrigerating machine oil can enter the oil pumping components at any oil level position, and particularly when the compressor is inclined, the oil suction holes can still be positioned below the oil level and can still suck the refrigerating machine oil. Simultaneously also can divide into two parts with the pump oil part, two mounting positions leave the gap, and the refrigerator oil can easily get into, and go the flow of control refrigerant through the size of gap in order to control the pump oil ability of pump oil part, do not have a large amount of refrigerator oil to get into lubricated surface, the refrigerant also need not circulate through the bent axle subassembly entirely simultaneously, a part of refrigerant circulates through other passageways, reduce the circulation resistance, so both can obtain reliable pump oil ability, reduce compressor efficiency influence again, the compressor can more reliable steady operation.

In summary, the technical scheme of the invention can solve the problem that the oil pumping of the existing horizontal compressor is unstable in the operation process, and by designing the oil pumping mechanism, a plurality of oil suction holes are formed in the oil pumping mechanism, and the refrigerating machine oil can be sucked below different oil surfaces and conveyed to a lubricating position, so that the refrigerating machine oil can be conveyed by the oil pumping mechanism under normal conditions, and the refrigerating machine oil can be stably conveyed by the oil pumping mechanism under extreme conditions such as inclination of the compressor, and the compressor can stably operate.

For the reasons, the invention can be widely popularized in the technical fields of refrigeration compressors and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic diagram of a horizontal compressor with an oil pumping mechanism and a working procedure thereof.

Fig. 2 is a schematic diagram of the oil pumping unit structure of a horizontal compressor with an oil pumping mechanism and its working steps according to the present invention.

Fig. 3 is a schematic structural diagram ii of a horizontal compressor with an oil pumping mechanism and its working steps according to the present invention.

Fig. 4 is a schematic diagram ii of a horizontal compressor with an oil pumping mechanism and an oil pumping component of the working procedure of the horizontal compressor.

Fig. 5 is a schematic diagram iii of a horizontal compressor with an oil pumping mechanism and an oil pumping component in the working steps of the horizontal compressor.

In the figure: 100. a suction member; 200. a lower support member; 201. an exhaust chamber; 300. a first-stage cylinder; 400. a middle support member; 500. a second-stage cylinder; 600. an upper support member; 700. a crankshaft assembly; 701. an oil passage; 800. an oil pumping member; 801. a front port; 802. a rear port; 803. an oil suction hole I; 804. an oil suction hole II; 805. an oil absorption assembly I; 806. an oil absorption assembly II; 807. oil suction hole III; 808. a pipe orifice I; 809. a pipe orifice II; 810. an oil absorption gap; 900. and an exhaust member.

Detailed Description

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

As shown in fig. 1 to 5, the present invention provides a horizontal compressor having an oil pumping mechanism, comprising: the compressor comprises a compressor shell, a compressor working part and an oil pumping part, wherein the compressor working part and the oil pumping part are arranged in the compressor shell, the compressor working part comprises a crankshaft assembly and a cylinder assembly, and the cylinder assembly is arranged on the crankshaft assembly; a front port 801 of the oil pumping part is connected with the cylinder assembly, and a rear port 802 of the oil pumping part is connected with an oil passage 701 of the crankshaft assembly; the cylinder assembly comprises an air suction part 100, an air discharge part 900, a lower support part 200, a primary cylinder 300, a middle support part 400, a secondary cylinder 500 and an upper support part 600, wherein the upper support part 600, the secondary cylinder 500, the middle support part 400, the primary cylinder 300 and the lower support part 200 are sequentially arranged on the crankshaft assembly, the air suction part 100 and the air discharge part 900 are arranged on the compressor shell and are connected with the cylinder assembly inside the compressor shell, an air discharge cavity 201 is arranged on the lower support part, and the front end of the oil pumping part is connected with the air discharge cavity 201; the oil pumping part is a tubular oil pumping part 800, the tubular oil pumping part 800 is of one or more sections of tubular structures, and when the tubular oil pumping part 800 is of a multi-section tubular structure, the multi-section tubular structures are mutually nested; when the tubular oil pumping unit 800 is a multi-section tubular structure, one or more oil absorbing slits 810 are arranged between the multi-section tubular structures; the tubular oil pumping unit 800 is provided with one or more oil suction holes, and the oil suction holes are circular, elliptical, various flow holes, etc.

The invention also provides a working step of the horizontal compressor with the oil pumping mechanism, which is characterized by comprising the following steps:

step S1: the refrigerant enters the primary cylinder from the suction member 100, is compressed in the primary cylinder 300, and is discharged through the discharge valve of the lower support member 200;

step S2: the discharged refrigerant enters the oil pumping part 800, and because of the oil suction holes on the oil pumping part 800, part of the refrigerating machine oil exists in the oil pumping part 800, and the flowing refrigerant drives the refrigerating machine oil to enter the oil channel 701 of the crankshaft assembly to flow in the crankshaft assembly 700 and enter the lubrication surfaces of all mechanical parts, so that the reliable operation of the compressor is protected;

step S3: the refrigerant continues to enter the secondary cylinder 500, the primary cylinder 300 and the secondary cylinder 500 are isolated by the middle support member 400, the refrigerant continues to be compressed in the secondary cylinder 500, and the refrigerant is discharged from the compressor through the discharge member 900 mounted on the upper support member 600.

Example 1

As shown in fig. 1, the present invention provides a horizontal compressor having an oil pumping mechanism, comprising an air suction part 100, an air discharge part 900, and a lower support part 200, a primary cylinder 300, a middle support part 400, a secondary cylinder 500, an upper support part 600, a crank assembly 700 and an oil pumping part 800 which are disposed inside the compressor, wherein the lower support part 200, the primary cylinder 300, the middle support part 40), the secondary cylinder 500, the upper support part 600 are connected together and are sleeved on the crank assembly 700, the air suction part 100 is protruded from the inside of the compressor, and the air discharge part 900 is protruded from the other side inside the compressor. Because the crank assembly 700 runs the parts, the mechanical parts sleeved on the crank assembly 700 need to be lubricated, so the lubrication of pumping oil is very important;

as shown in fig. 2, the lower support member 200 has an exhaust chamber 201, a front port 801 of the oil pumping member 800 is connected to the exhaust chamber 201, and a rear port 802 is connected to an oil passage 701 of the crankshaft assembly 700; the oil suction hole I803 is formed in the oil pumping part 800, the refrigerant discharged by the first-stage cylinder 300 enters the exhaust chamber 201 of the lower support part 200, the part of the refrigerant enters the oil pumping part 800 through the port A of the oil pumping part 800, the refrigerant flows in the oil pumping part 800 and enters the crankshaft assembly 700 through the port B and the oil channel 701 of the crankshaft assembly 700, in the process, as one or more oil suction holes I803 are formed in the oil pumping part 800, the refrigerating machine oil enters the oil pumping part 800 through the oil suction holes I803, the refrigerant flowing in the oil pumping part 800 drives the refrigerating oil entering through the oil suction holes A803 to be conveyed into the crankshaft assembly 700, and finally the lower support part 200, the first-stage cylinder 300, the middle support part 400, the second-stage cylinder 500 and the upper support part 600 are lubricated, so that the running reliability of the compressor is ensured.

In this embodiment, one or more oil suction holes i 803 are formed, and the shape of the oil suction holes i 803 may be circular, elliptical, various flow hole shapes, etc., and the oil suction holes i 803 are formed at different heights of the oil pumping unit 800. The oil pumping part 800 is provided with the plurality of oil suction holes I803, the oil pumping part 800 can be arranged in the whole shell of the compressor, the oil suction holes I803 can be arranged at any position, refrigerating machine oil can enter the oil pumping part 800 at any oil level position, and particularly when the compressor is inclined, the oil suction holes I803 can still be positioned below the oil level, and refrigerating machine oil can still be sucked.

Example 2

As shown in fig. 3, the present invention provides a horizontal compressor having an oil pumping mechanism, in which an exhaust chamber 201 is provided on a lower support member 200, a front port 801 of an oil pumping member 800 is connected to the exhaust chamber 201, and a rear port 802 is connected to an oil passage 701 of a crank assembly 700. The refrigerant discharged from the primary cylinder 300 enters the discharge chamber 201 of the lower support member 200, and this portion of the refrigerant enters the oil pumping member 800 through the front port 801 of the oil pumping member 800, and the refrigerant flows in the oil pumping member 800 through the rear port 802 and the oil passage 701 of the crankshaft assembly 700 to enter the crankshaft assembly 700.

As shown in fig. 4, the oil pumping unit 800 may be divided into an oil suction assembly i 805 and an oil suction assembly ii 806, wherein a nozzle i 808 of the oil suction assembly i 805 is inserted into a nozzle ii 809 of the oil suction assembly B806 and an oil suction gap 810 is left. Refrigerator oil can easily enter the oil pumping part 800 through the oil suction gap 810, and the flow of the refrigerant is controlled through the size of the gap 810 to control the oil pumping capacity of the oil pumping part 800, so that a large amount of refrigerator oil does not enter the lubricating surface, meanwhile, the refrigerant does not need to flow through the crankshaft assembly 700 completely, a part of the refrigerant flows through other channels, the flow resistance is reduced, thus, the reliable oil pumping capacity can be obtained, the influence of the efficiency of the compressor is reduced, and the compressor can run more reliably and stably.

Example 3

As shown in fig. 3, the present invention provides a horizontal compressor having an oil pumping mechanism, in which an exhaust chamber 201 is provided on a lower support member 200, a front port 801 of an oil pumping member 800 is connected to the exhaust chamber 201, and a rear port 802 is connected to an oil passage 701 of a crank assembly 700. The refrigerant discharged from the primary cylinder 300 enters the discharge chamber 201 of the lower support member 200, and this portion of the refrigerant enters the oil pumping member 800 through the front port 801 of the oil pumping member 800, and the refrigerant flows in the oil pumping member 800 through the rear port 802 and the oil passage 701 of the crankshaft assembly 700 to enter the crankshaft assembly 700.

As shown in fig. 5, the oil pumping unit 800 may be divided into an oil suction assembly i 805 and an oil suction assembly ii 806, wherein a nozzle i 808 of the oil suction assembly i 805 is inserted into a nozzle ii 809 of the oil suction assembly B806 and an oil suction gap 810 is left. Refrigerator oil can easily get into pump oil part 800 by oil absorption gap 810, and through the size in gap 810 to control the flow of refrigerant in order to control the pump oil ability of pump oil part 800, do not have a large amount of refrigerator oil to get into lubricated surface, the refrigerant also need not circulate through bent axle subassembly 700 entirely simultaneously, a portion of refrigerant circulates through other passageways, reduce the circulation resistance, both can obtain reliable pump oil ability like this, reduce compressor efficiency influence again, the compressor can more reliable stable operation, set up oil absorption hole II 804 on the oil absorption subassembly I805 simultaneously, set up oil absorption hole III 807 on the oil absorption subassembly II 806. One or more oil suction holes II 804 and III 807 are formed, the shape of the oil suction holes can be round, elliptic, various circulation hole shapes and the like, and the oil suction holes I803 are formed at different heights of the oil suction assembly I805 and the oil suction assembly II 806, so that refrigerating machine oil can enter the oil pumping component 800 at any oil level position, and particularly when the compressor is inclined, the oil suction holes I803 can still be positioned below the oil level, and refrigerating machine oil can still be sucked.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (3)

1. A horizontal compressor having an oil pumping mechanism, comprising: the compressor comprises a compressor shell, a compressor working part and an oil pumping part, wherein the compressor working part and the oil pumping part are arranged in the compressor shell, the compressor working part comprises a crankshaft assembly and a cylinder assembly, and the cylinder assembly is arranged on the crankshaft assembly; the front port of the oil pumping part is connected with the cylinder assembly, and the rear port of the oil pumping part is connected with an oil channel of the crankshaft assembly; the cylinder assembly comprises an air suction component, an air exhaust component, a lower supporting component, a first-stage cylinder, a middle supporting component, a second-stage cylinder and an upper supporting component, wherein the upper supporting component, the second-stage cylinder, the middle supporting component, the first-stage cylinder and the lower supporting component are sequentially arranged on the crankshaft assembly, the air suction component and the air exhaust component are arranged on the compressor shell and are connected with the cylinder assembly inside the compressor shell, an air exhaust cavity is arranged on the lower supporting component, and a front port of the oil pumping part is connected with the air exhaust cavity; the oil pumping part is a tubular oil pumping part, the tubular oil pumping part is of a multi-section tubular structure, and the multi-section tubular structures are mutually nested; one or more oil absorption gaps are arranged between the mutually nested multi-section tubular structures.

2. The horizontal compressor with oil pumping mechanism as set forth in claim 1, wherein the tubular oil pumping member is provided with one or more oil suction holes, and the oil suction holes are circular or elliptical in shape.

3. A method of operating a horizontal compressor having an oil pumping mechanism according to claim 2, wherein the operating steps of the method include:

step S1: the refrigerant enters a primary cylinder from the air suction part, is compressed in the primary cylinder and is discharged through an exhaust valve on the lower supporting part;

step S2: the discharged refrigerant enters the tubular oil pumping part, a part of refrigerating machine oil exists in the tubular oil pumping part due to the existence of oil suction holes on the tubular oil pumping part, and the flowing refrigerant can drive the refrigerating machine oil to enter an oil passage of the crankshaft assembly to flow in the crankshaft assembly and enter the lubrication surfaces of all mechanical parts so as to protect the reliable operation of the compressor;

step S3: the refrigerant continues to enter the secondary cylinder, the primary cylinder and the secondary cylinder are isolated by the middle support member, the refrigerant continues to be compressed in the secondary cylinder, and the refrigerant is discharged from the compressor through the discharge member mounted on the upper support member.

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