A star-shaped air compressor system

Abstract

The present invention discloses a star-shaped air compressor system, comprising a crankshaft and four cylinders arranged on the crankshaft. The four cylinders are vertically distributed on the crankshaft, and the angle between any two adjacent cylinders is 90°, so that the four cylinders are star-shaped distributed on the crankshaft, thereby increasing its stability. When working, a motor drives a crankshaft connecting rod to drive a piston in each cylinder to reciprocate, and the four cylinders complete four working processes of intake-compression-exhaust-expansion in sequence. Each cylinder is water-cooled by a water cooling device, thereby increasing the cooling effect. Compared with existing air cooling, the cooling efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, and in particular to a star-shaped air compressor system. Background Art

[0002] In order to improve the working efficiency of air compressors, four-cylinder air compressors are being used more and more widely.

[0003] A four-cylinder air compressor usually has four air compression components on the crankcase. The four air compression components continuously work and generate heat during use. If the heat is not dissipated in time, it is very likely to affect the normal operation and service life of the cylinder.

[0004] The existing four-cylinder air compressors are often axially oriented horizontally, and the four cylinders are cooled by air. For example, the patent document [CN201520679652.2] proposes a four-cylinder air compressor that cools the cylinders by flowing gas, but the cooling effect is poor. Summary of the invention

[0005] In order to solve the technical problems existing in the background technology, the present invention proposes a star-shaped air compressor system.

[0006] A star-shaped air compressor system proposed in the present invention comprises a crankshaft, a first cylinder, a second cylinder, a third cylinder, a fourth cylinder, a first water cooling device, a second water cooling device, a third water cooling device and a fourth water cooling device, wherein:

[0007] The first cylinder, the fourth cylinder, the third cylinder and the second cylinder are installed on the crankshaft from top to bottom, and the angle between any two adjacent cylinders is 90°;

[0008] The external gas passes through the first cylinder, the second cylinder, the third cylinder and the fourth cylinder, and is finally discharged from the fourth cylinder;

[0009] The first water cooling device is covered outside the first cylinder and used to cool the first cylinder, the second water cooling device is covered outside the second cylinder and used to cool the second cylinder, the third water cooling device is covered outside the third cylinder and used to cool the third cylinder, and the fourth water cooling device is covered outside the fourth cylinder and used to cool the fourth cylinder;

[0010] Specifically, the water cooling device (the water cooling device here can be the first water cooling device, the second water cooling device, the third water cooling device, and the fourth water cooling device) can be covered on the outside of the cylinder (the cylinder here can be the first cylinder, the second cylinder, the third cylinder, and the fourth cylinder). The water cooling device can be a water pipe in the prior art wrapped around the outside of the cylinder, or it can be an outer shell with a cooling chamber that is mounted outside the cylinder, and then the cylinder is cooled by circulating cooling water, thereby increasing the cooling efficiency.

[0011] The four cylinders are distributed vertically on the crankshaft, and the angle between any two adjacent cylinders is 90°, so that the four cylinders are distributed in a star shape on the crankshaft, thereby increasing its stability; when working, the motor drives the crankshaft connecting rod to drive the pistons in each cylinder to reciprocate, and the four cylinders complete the four working processes of intake-compression-exhaust-expansion in turn. Each cylinder is water-cooled by a water cooling device, thereby increasing the cooling effect. Compared with the existing air cooling, the cooling efficiency is higher.

[0012] Preferably, it comprises an air inlet pipe, a first connecting pipe, a second connecting pipe, a third connecting pipe and an air outlet pipe, wherein:

[0013] The intake pipe is connected to the intake port of the first cylinder, the first connecting pipe is used to connect the outlet of the first cylinder with the intake port of the second cylinder, the second connecting pipe is used to connect the outlet of the second cylinder with the intake port of the third cylinder, the third connecting pipe is used to connect the outlet of the third cylinder with the intake port of the fourth cylinder, and the outlet pipe is connected to the outlet of the fourth cylinder.

[0014] Preferably, an intake muffler is provided on the intake pipe.

[0015] Preferably, a first oil-gas separator is provided on the first connecting pipe.

[0016] Preferably, it also includes a sewage discharge device, and the liquid discharged from the oil-gas separator is discharged into the sewage discharge device.

[0017] Preferably, it also includes a first cooler, a second cooler, a third cooler and a fourth cooler, the first cooler is used to cool the gas exhausted from the first cylinder, the second cooler is used to cool the gas exhausted from the second cylinder, the third cooler is used to cool the gas exhausted from the third cylinder, and the fourth cooler is used to cool the gas exhausted from the fourth cylinder.

[0018] Preferably, it also includes a water inlet pipe, a first connecting water pipe, a second connecting water pipe, a third connecting water pipe, a fourth connecting water pipe, a fifth connecting water pipe, a sixth connecting water pipe, a seventh connecting water pipe and a water outlet pipe;

[0019] The water inlet pipe is communicated with the water inlet of the fourth cooler, the water outlet of the fourth cooler is communicated with the water inlet of the first cooler through the first connecting water pipe, the water outlet of the first cooler is communicated with the water inlet of the first water-cooling device through the second connecting water pipe, the water outlet of the first water-cooling device is communicated with the water inlet of the third water-cooling device through the third connecting water pipe, the water outlet of the third water-cooling device is communicated with the water inlet of the third cooler through the fourth connecting water pipe, the water outlet of the third cooler is communicated with the water inlet of the second cooler through the fifth connecting water pipe, the water outlet of the second cooler is communicated with the water inlet of the second water-cooling device through the sixth connecting water pipe, the water outlet of the second water-cooling device is communicated with the water inlet of the fourth water-cooling device through the seventh connecting water pipe, and the water outlet of the fourth water-cooling device is connected to the water outlet pipe;

[0020] That is, the first cooler and the fourth cooler are used to cool the liquid entering the first water cooling device, the second cooler is used to cool the liquid entering the second water cooling device, and the third cooler is used to cool the liquid discharged from the third water cooling device.

[0021] Preferably, the masses of the connecting rods and pistons connected to the first cylinder, the second cylinder, the third cylinder and the fourth cylinder are equal, that is, the masses of the connecting rod connected to the first cylinder, the connecting rod connected to the second cylinder, the connecting rod connected to the third cylinder and the connecting rod connected to the fourth cylinder are relative, and the masses of the piston connected to the first cylinder, the piston connected to the second cylinder, the piston connected to the third cylinder and the piston connected to the fourth cylinder are equal.

[0022] In the present invention, the star-shaped air compressor system proposed has a simple structure. The four cylinders are vertically distributed on the crankshaft, and the angle between any two adjacent cylinders is °, so that the four cylinders are star-shaped distributed on the crankshaft, thereby increasing its stability; at the same time, the cylinders (the cylinders here include the first cylinder, the second cylinder, the third cylinder and the fourth cylinder) are cooled by water cooling, thereby increasing their cooling effect.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a system diagram of the present invention. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] like Figure 1A star-shaped air compressor system shown includes a crankshaft 1, a first cylinder 2, a second cylinder 3, a third cylinder 4, a fourth cylinder 5, a first water cooling device 6, a second water cooling device 7, a third water cooling device 8 and a fourth water cooling device 9, wherein:

[0031] The first cylinder 2, the fourth cylinder 5, the third cylinder 4 and the second cylinder 3 are installed on the crankshaft 1 from top to bottom, and the angle between any two adjacent cylinders is 90°. It should be noted that for the convenience of representing the air compressor system Figure 1 The crankshaft 1 in the figure is arranged horizontally, but the crankshaft 1 in actual production is installed vertically on the air compressor base;

[0032] The external gas passes through the first cylinder 2, the second cylinder 3, the third cylinder 4 and the fourth cylinder 5, and is finally discharged from the fourth cylinder 5;

[0033] The first water cooling device 6, the second water cooling device 7, the third water cooling device 8 and the fourth water cooling device 9 are all shells with cooling chambers in the prior art, covering the outside of the first cylinder 2, the second cylinder 3, the third cylinder 4 and the fourth cylinder 5, and cooling the first cylinder 2, the second cylinder 3, the third cylinder 4 and the fourth cylinder 5 is achieved by passing circulating cooling water into the cooling chamber;

[0034] The first water cooling device 6 is covered outside the first cylinder 2 and used to cool the first cylinder 2, the second water cooling device 7 is covered outside the second cylinder 3 and used to cool the second cylinder 3, the third water cooling device 8 is covered outside the third cylinder 4 and used to cool the third cylinder 4, and the fourth water cooling device 9 is covered outside the fourth cylinder 5 and used to cool the fourth cylinder 5;

[0035] That is, the cylinders at each level refer to the first cylinder 2, the second cylinder 3, the third cylinder 4 and the fourth cylinder 5, which are all water-cooled and dry-type cylinder liner structures;

[0036] The crankshaft 1 is arranged vertically, and the first cylinder 2, the second cylinder 3, the third cylinder 4 and the fourth cylinder 5 are distributed in a star shape and vertically on the crankshaft 1. The connecting rod connected to the first cylinder 2, the connecting rod connected to the second cylinder 3, the connecting rod connected to the third cylinder 4 and the connecting rod connected to the fourth cylinder 5 have the same mass, and the piston connected to the first cylinder 2, the piston connected to the second cylinder 3, the piston connected to the third cylinder 4 and the piston connected to the fourth cylinder 5 have the same mass, so that the reciprocating inertia force and moment are optimally balanced;

[0037] Specifically, it includes an air inlet pipe 10, a first connecting pipe 11, a second connecting pipe 12, a third connecting pipe 13 and an air outlet pipe 14, wherein:

[0038] The air inlet pipe 10 is connected to the air inlet of the first cylinder 2, the first connecting pipe 11 is used to connect the air outlet of the first cylinder 2 with the air inlet of the second cylinder 3, the second connecting pipe 12 is used to connect the air outlet of the second cylinder 3 with the air inlet of the third cylinder 4, the third connecting pipe 13 is used to connect the air outlet of the third cylinder 4 with the air inlet of the fourth cylinder 5, and the air outlet pipe 14 is connected to the air outlet of the fourth cylinder 5;

[0039] Preferably, an intake muffler 15 is provided on the intake pipe 10;

[0040] Preferably, the first connecting pipe 11 is provided with a first oil-gas separator 16, and the first oil-gas separator 16 is used to filter the gas discharged from the first cylinder 2; the second connecting pipe 12 is provided with a second oil-gas separator 17, and the second oil-gas separator 17 is used to filter the gas discharged from the second cylinder 3; the third connecting pipe 13 is provided with a third oil-gas separator 18, and the third oil-gas separator 18 is used to filter the gas discharged from the third cylinder 4; the outlet pipe 14 is provided with a fourth oil-gas separator 19, and the fourth oil-gas separator 19 is used to filter the gas discharged from the fourth cylinder 5;

[0041] Preferably, a sewage discharge device is further included. Specifically, the sewage discharge device includes a sewage collecting bucket 24, and the sewage collecting bucket 24 is used to collect the liquid mixture from the first oil-gas separator 16, the second oil-gas separator 17, the third oil-gas separator 18 and the fourth oil-gas separator 19;

[0042] Preferably, in order to increase the cooling effect, it is preferred to further include a first cooler 20, a second cooler 21, a third cooler 22 and a fourth cooler 23, wherein the first cooler 20 and the fourth cooler 23 are used to cool the liquid entering the first water cooling device 6, the second cooler 21 is used to cool the liquid entering the second water cooling device 7, and the third cooler 22 is used to cool the liquid discharged from the third water cooling device 8;

[0043] Specifically, the gas exhausted from the first cylinder 2 passes through the first cooler 20 and then enters the first oil-gas separator 16 for oil-gas separation, and the gas separated by the first oil-gas separator 16 enters the second cylinder 3; the gas exhausted from the second cylinder 3 passes through the second cooler 21 and then enters the second oil-gas separator 17 for oil-gas separation, and the gas separated by the second oil-gas separator 17 enters the third cylinder 4; the gas exhausted from the third cylinder 4 passes through the third cooler 22 and then enters the third oil-gas separator 18 for oil-gas separation, and the gas passed through the third oil-gas separator 18 enters the fourth cylinder 5, and the gas exhausted from the fourth cylinder 5 enters the fourth oil-gas separator 19 through the fourth cooler 23, and the gas exhausted from the fourth oil-gas separator 19 is discharged through the outlet pipe 14;

[0044] Specifically, it also includes a water inlet pipe 25, a first connecting water pipe 26, a second connecting water pipe 27, a third connecting water pipe 28, a fourth connecting water pipe 29, a fifth connecting water pipe 30, a sixth connecting water pipe 31, a seventh connecting water pipe 32 and a water outlet pipe 33;

[0045] The water inlet pipe 25 is communicated with the water inlet of the fourth cooler 23, the water outlet of the fourth cooler 23 is communicated with the water inlet of the first cooler 20 through the first connecting water pipe 26, the water outlet of the first cooler 20 is communicated with the water inlet of the first water cooling device 6 through the second connecting water pipe 27, the water outlet of the first water cooling device 6 is communicated with the water inlet of the third water cooling device 8 through the third connecting water pipe 28, the water outlet of the third water cooling device 8 is communicated with the water inlet of the third cooler 22 through the fourth connecting water pipe 29, the water outlet of the third cooler 22 is communicated with the water inlet of the second cooler 21 through the fifth connecting water pipe 30, the water outlet of the second cooler 21 is communicated with the water inlet of the second water cooling device 7 through the sixth connecting water pipe 31, the water outlet of the second water cooling device 7 is communicated with the water inlet of the fourth water cooling device 9 through the seventh connecting water pipe 32, and the water outlet of the fourth water cooling device 9 is connected to the water outlet pipe 33;

[0046] The first cooler 20 and the fourth cooler 23 cool the water entering the first water cooling device 6 and the third water cooling device 8, and the third cooler 22 and the second cooler 21 also cool the liquid entering the second water cooling device 7 and the fourth water cooling device 9, further improving the cooling effect;

[0047] In some preferred embodiments, additionally Figure 1 As shown, it also includes a lubrication device, the gear chamber oil pump is driven by the crankshaft 1 to perform pressure lubrication on the upper and lower journals of the crankshaft 1, the crank pin and the fourth cylinder 5, respectively, and the first cylinder 2, the second cylinder 3 and the third cylinder 4, and the small end of the connecting rod are splash lubricated;

[0048] It should be noted that if Figure 1 As shown, valves can be set on the pipeline as needed.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A star-type air compressor system, characterized in that: It comprises a crankshaft (1), a first cylinder (2), a second cylinder (3), a third cylinder (4), a fourth cylinder (5), a first water cooling device (6), a second water cooling device (7), a third water cooling device (8) and a fourth water cooling device (9), wherein: The first cylinder (2), the fourth cylinder (5), the third cylinder (4) and the second cylinder (3) are mounted on the crankshaft (1) from top to bottom and are radially distributed in a star shape along the radial direction of the crankshaft (1), and the angle between any two adjacent cylinders is 90°; The external gas passes through the first cylinder (2), the second cylinder (3), the third cylinder (4) and the fourth cylinder (5), and is finally discharged from the fourth cylinder (5); The first water cooling device (6) is wrapped around the outside of the first cylinder (2) and is used to cool the first cylinder (2); the second water cooling device (7) is wrapped around the outside of the second cylinder (3) and is used to cool the second cylinder (3); the third water cooling device (8) is wrapped around the outside of the third cylinder (4) and is used to cool the third cylinder (4); the fourth water cooling device (9) is wrapped around the outside of the fourth cylinder (5) and is used to cool the fourth cylinder (5); It comprises an air inlet pipe (10), a first connecting pipe (11), a second connecting pipe (12), a third connecting pipe (13) and an air outlet pipe (14), wherein: The air inlet pipe (10) is connected to the air inlet of the first cylinder (2); the first connecting pipe (11) is used to connect the air outlet of the first cylinder (2) and the air inlet of the second cylinder (3); the second connecting pipe (12) is used to connect the air outlet of the second cylinder (3) and the air inlet of the third cylinder (4); the third connecting pipe (13) is used to connect the air outlet of the third cylinder (4) and the air inlet of the fourth cylinder (5); the air outlet pipe (14) is connected to the air outlet of the fourth cylinder (5); The invention also comprises a first cooler (20), a second cooler (21), a third cooler (22) and a fourth cooler (23), wherein the first cooler (20) is used to cool the gas exhausted from the first cylinder (2), the second cooler (21) is used to cool the gas exhausted from the second cylinder (3), the third cooler (22) is used to cool the gas exhausted from the third cylinder (4), and the fourth cooler (23) is used to cool the gas exhausted from the fourth cylinder (5); It also includes a water inlet pipe (25), a first connecting water pipe (26), a second connecting water pipe (27), a third connecting water pipe (28), a fourth connecting water pipe (29), a fifth connecting water pipe (30), a sixth connecting water pipe (31), a seventh connecting water pipe (32), and a water outlet pipe (33); The water inlet pipe (25) is in communication with the water inlet of the fourth cooler (23); the water outlet of the fourth cooler (23) is in communication with the water inlet of the first cooler (20) through the first connecting water pipe (26); the water outlet of the first cooler (20) is in communication with the water inlet of the first water cooling device (6) through the second connecting water pipe (27); the water outlet of the first water cooling device (6) is in communication with the water inlet of the third water cooling device (8) through the third connecting water pipe (28); the water outlet of the third water cooling device (8) is in communication with the water inlet of the third cooler (22) through the fourth connecting water pipe (29); the water outlet of the third cooler (22) is in communication with the water inlet of the third cooler (22) through the fifth connecting water pipe (29); (30) is connected to the water inlet of the second cooler (21), the water outlet of the second cooler (21) is connected to the water inlet of the second water cooling device (7) through the sixth connecting water pipe (31), the water outlet of the second water cooling device (7) is connected to the water inlet of the fourth water cooling device (9) through the seventh connecting water pipe (32), the water outlet of the fourth water cooling device (9) is connected to the water outlet pipe (33), the first cooler (20) and the fourth cooler (23) cool the water entering the first water cooling device (6) and the third water cooling device (8), and the third cooler (22) and the second cooler (21) also cool the liquid entering the second water cooling device (7) and the fourth water cooling device (9); The connecting rods and pistons connected to the first cylinder (2), the second cylinder (3), the third cylinder (4), and the fourth cylinder (5) have the same mass.

2. The star-type air compressor system according to claim 1, characterized in that: An air intake muffler (15) is provided on the air intake pipe (10).

3. The star-type air compressor system according to claim 1, characterized in that: A first oil-gas separator is provided on the first connecting pipe (11).

4. The star-type air compressor system according to claim 3, characterized in that: It also includes a sewage discharge device, into which the liquid discharged from the oil-gas separator is discharged.

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