CN211623655U

CN211623655U - Intercooler and oil-free piston type compressor comprising same

Info

Publication number: CN211623655U
Application number: CN201922477613.5U
Authority: CN
Inventors: 王涛; 屠天贝
Original assignee: Zhejiang Vie Qifu Auto Parts Co ltd
Current assignee: Zhejiang Vie Qifu Auto Parts Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-02
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a compressor field specifically discloses an intercooler reaches oil-free piston compressor including this intercooler. The intercooler comprises a radiating bar, the radiating bar comprises a plurality of radiating pipes arranged side by side, a radiating space is formed between every two adjacent radiating pipes, and radiating fins are arranged in the radiating space; a heat dissipation channel which axially penetrates through the heat dissipation pipe is arranged in each heat dissipation pipe; the heat dissipation bar is characterized by also comprising end sockets which are arranged at two ends of the heat dissipation bar and detachably connected with the heat dissipation bar, wherein an air distribution channel is arranged in each end socket; the plurality of heat dissipation channels are sequentially communicated end to end through the air distribution channel; and the cooling air inlet and the cooling air outlet are also included. The intercooler is simple in structure and good in heat dissipation effect.

Description

Intercooler and oil-free piston type compressor comprising same

Technical Field

The utility model relates to a compressor field especially relates to an intercooler reaches oil-free piston compressor including this intercooler.

Background

The air compressor is a main body of an air source device, and is a device for converting mechanical energy of a prime mover (usually, an electric motor) into gas pressure energy, and is an air pressure generating device for compressing air. The multi-stage compression is a common way for improving the pressure of compressed air, and an intermediate cooling link is usually arranged between each stage of compression so as to improve the work efficiency of the compressor. To some extent, the maximum discharge pressure of the compressor is limited by the cooling effect of the intercooler.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an intercooler reaches oil-free piston compressor including this intercooler, intercooler simple structure wherein, the radiating effect is good.

In order to solve the technical problem, the utility model provides a technical scheme as follows: an intercooler comprises a radiating bar, wherein the radiating bar comprises a plurality of radiating pipes arranged side by side, a radiating space is formed between every two adjacent radiating pipes, and radiating fins are arranged in the radiating space; a heat dissipation channel which axially penetrates through the heat dissipation pipe is arranged in each heat dissipation pipe; the heat dissipation bar is characterized by also comprising end sockets which are arranged at two ends of the heat dissipation bar and detachably connected with the heat dissipation bar, wherein an air distribution channel is arranged in each end socket; the plurality of heat dissipation channels are sequentially communicated end to end through the air distribution channel; and the cooling air inlet and the cooling air outlet are also included.

Preferably, the heat dissipation channel gradually shrinks from two ends to the middle.

The heat dissipation channel gradually shrinks from two ends to the middle, so that demoulding during production and processing is facilitated, and meanwhile, in the process of circulating to the middle of the heat dissipation channel, due to the reduction of the sectional area, the air flow is pressurized and heated, the heat dissipation efficiency is improved, and the cooling effect is improved.

An oil-free piston type compressor comprises a motor, a first-stage compression assembly and a second-stage compression assembly, wherein the motor is positioned between the first-stage compression assembly and the second-stage compression assembly and simultaneously drives the first-stage compression assembly and the second-stage compression assembly to work; the first-stage compression assembly comprises a first-stage transmission case and a first-stage air cylinder, and the second-stage compression assembly comprises a second-stage transmission case and a second-stage air cylinder; still include as above the intercooler, the one-level gas outlet of one-level compression assembly passes through the intake pipe intercommunication with the cooling air inlet of intercooler, the second grade air inlet of second grade compression assembly passes through the outlet duct intercommunication with the cooling gas outlet of intercooler.

The motor is located between first-stage compression assembly and the second-stage compression assembly, and the complete machine operation is more steady, and the noise is lower, shakes littleer, and appearance structure is compacter, pleasing to the eye, has also left sufficient space for the installation of intercooler simultaneously.

Preferably, the primary cylinder comprises a primary cylinder body and a primary cylinder cover, a primary piston is arranged in the primary cylinder body, a primary air inlet valve is arranged on the primary piston, and a primary air inlet joint is arranged on the primary transmission case; the one-level cylinder body and the one-level cylinder cover between be equipped with the one-level valve plate, the one-level valve plate on be equipped with the one-level air outlet valve that corresponds with the one-level gas outlet. The first-stage compression assembly adopts a piston top air inlet structure, and the overall cooling effect is improved.

Preferably, the secondary cylinder comprises a secondary cylinder body and a secondary cylinder cover, a secondary air inlet cavity communicated with the secondary air inlet and a secondary air exhaust cavity communicated with the secondary air outlet are arranged in the secondary cylinder cover, and the secondary air inlet cavity is annularly arranged around the secondary air exhaust cavity; the cylinder body of the second stage is internally provided with a second stage piston, a second stage valve plate is arranged between the second stage cylinder body and the second stage cylinder cover, and the second stage valve plate is provided with a second stage air inlet valve corresponding to the second stage air inlet cavity and a second stage exhaust valve corresponding to the second stage exhaust cavity.

Preferably, the secondary piston is provided with a piston ring, and the inner side of the piston ring is provided with a liner; and a guide ring is also arranged on the outer side of the secondary piston. The arrangement of the gasket and the guide ring can improve the sealing effect of the piston and the cylinder wall.

Preferably, the primary piston and the secondary piston respectively comprise piston pins, oil storage cavities are arranged in the piston pins, lubricating holes penetrating through the side walls are formed in the side walls of the oil storage cavities, and high-temperature-resistant lubricating grease is filled in the oil storage cavities. The piston is lubricated with being connected of connecting rod, improves life.

Preferably, the device also comprises a base, and the motor, the primary compression assembly and the secondary compression assembly are all arranged on the base; the cooling device comprises a base, a fan and an air cooling assembly, wherein the fan is arranged below the base, the air cooling assembly comprises an air guide cover which covers the outer sides of a primary transmission case and a secondary transmission case, and cooling spaces are respectively formed between the air guide cover and the primary transmission case and between the air guide cover and the secondary transmission case; and the base is also provided with an air guide hole which corresponds to the fan and is communicated with the cooling space. The air guide hole and the air guide cover jointly form an air flow passage to guide air flow to dissipate heat of the compression assembly, the air flow is concentrated in flowing, and the cooling effect is good. Meanwhile, the fan is arranged below the bottom plate, the structure is compact and attractive, and the arrangement is more reasonable. Compared with the traditional arrangement mode, the fan has less interference on the compression assembly and the motor, and is more convenient to assemble and maintain.

Preferably, the outer side walls of the primary cylinder and the secondary cylinder are provided with heat dissipation parts, the heat dissipation parts are provided with heat dissipation through holes penetrating through the heat dissipation parts in the height direction, and the lower ends of the heat dissipation through holes are aligned with the cooling space. And the air flow flowing out of the cooling space enters the heat dissipation through hole to dissipate heat of the air cylinder.

Preferably, a bottom plate is connected to the lower portion of the base, and an installation space for installing the fan is formed between the bottom plate and the base. The bottom plate plays the guard action to the fan, also can reduce the suction of impurity simultaneously.

Drawings

FIG. 1 is a full sectional view of an intercooler in accordance with the present embodiment;

FIG. 2 is an exploded view of an intercooler in accordance with the present embodiment;

fig. 3 is a schematic structural view of an oil-free piston compressor of the present embodiment;

fig. 4 is an exploded view of the oil-free piston type compressor of the present embodiment;

fig. 5 is a partial sectional view of a one-stage compression assembly of the oil-free piston type compressor of the present embodiment;

fig. 6 is a partial sectional view of a two-stage compression assembly of the oil-free piston type compressor of the present embodiment;

FIG. 7 is a schematic structural diagram of a first-stage valve plate assembly in the oil-free piston compressor of the present embodiment;

fig. 8 is a schematic structural view of a primary piston in the oil-free piston type compressor of the embodiment;

FIG. 9 is a schematic structural diagram of a two-stage valve plate assembly in the oil-free piston type compressor of the embodiment;

fig. 10 is a schematic structural view of a two-stage piston in the oil-free piston compressor of the present embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples

As shown in fig. 1 and fig. 2, an intercooler includes a heat dissipation tube 81, where the heat dissipation tube 81 includes a plurality of heat dissipation tubes arranged side by side, a heat dissipation space is formed between two adjacent heat dissipation tubes, and a heat dissipation fin 811 is disposed in the heat dissipation space. Each of the heat dissipation pipes is provided with a heat dissipation channel 812 axially penetrating the heat dissipation pipe. The heat dissipation channel 812 gradually shrinks from both ends to the middle. The heat dissipation device further comprises end sockets 82 which are arranged at two ends of the heat dissipation row 81 and detachably connected with the heat dissipation row 81, and air distribution channels 821 are arranged in the end sockets 82. The plurality of heat dissipation channels 812 are sequentially communicated end to end through air distribution channels 821. And also includes a cooling air inlet 83 and a cooling air outlet 84.

The form of end to end is adopted, the total length of the heat dissipation channel 812 is increased, and therefore the cooling effect is improved, the heat dissipation channel 812 is gradually contracted from two ends to the middle, demolding during production and processing is facilitated, meanwhile, in the process that air flows to the middle of the heat dissipation channel 812, due to the fact that the sectional area is reduced, air flow is pressurized and heated, the heat dissipation efficiency is improved, and therefore the cooling effect is improved.

As shown in fig. 3 and 4, an oil-free piston compressor comprises a motor 3, a first-stage compression assembly 1 and a second-stage compression assembly 4, wherein the motor 3 is located between the first-stage compression assembly 1 and the second-stage compression assembly 4, and the motor 3 simultaneously drives the first-stage compression assembly 1 and the second-stage compression assembly 4 to work. The primary compression assembly 1 comprises a primary transmission case 16 and a primary cylinder, and the secondary compression assembly 4 comprises a secondary transmission case 47 and a secondary cylinder. Still include as above the intercooler 8, the one-level gas outlet of one-level compression assembly 1 and the cooling air inlet 83 of intercooler 8 pass through intake pipe 21 intercommunication, the second grade air inlet of second grade compression assembly 4 and the cooling gas outlet 84 of intercooler 8 pass through outlet duct 22 intercommunication. A safety valve 21 is arranged between the first-stage compression assembly 1 and the intercooler 8. The first-stage compression assembly 1 comprises two cylinders, and the two cylinders are arranged in a V shape. The secondary transmission case 47 is connected with an exhaust pipe 43, and the exhaust pipe 43 is provided with a one-way valve 44.

As shown in fig. 3-5, the first-stage cylinder includes a first-stage cylinder body 12 and a first-stage cylinder cover 11, the first-stage cylinder body 12 is internally provided with a first-stage piston 14, the first-stage piston 14 is provided with a first-stage air inlet valve, and the first-stage transmission case is provided with a first-stage air inlet joint 13. One-level valve plate 15 is arranged between the one-level cylinder body 12 and the one-level cylinder cover 11, and one-level air outlet valves corresponding to the one-level air outlets are arranged on the one-level valve plate 15.

As shown in fig. 8, the primary piston 14 is provided with a primary air inlet channel 143 communicating the transmission case cavity and the cylinder cavity, and the primary air inlet valve includes a primary air inlet valve plate 142 and an air inlet limit screw 141 disposed above the piston. As shown in fig. 7, the first-stage valve plate 15 is provided with a first-stage air outlet channel 151; the primary air outlet valve comprises a primary air outlet valve plate 152 and a primary air outlet fixed distance plate 153 which are arranged above the primary valve plate 15; the bottom of the first-stage valve plate is provided with an avoiding hole 154 corresponding to the air inlet limiting screw 141.

As shown in fig. 3, 4 and 6, the secondary cylinder includes a secondary cylinder body and a secondary cylinder cover 42, a secondary air inlet cavity communicated with the secondary air inlet and a secondary air outlet cavity communicated with the secondary air outlet are arranged in the secondary cylinder cover 42, and the secondary air inlet cavity is annularly arranged around the secondary air outlet cavity. The two-stage cylinder body is internally provided with a two-stage piston 46, a two-stage valve plate 45 is arranged between the two-stage cylinder body and the two-stage cylinder cover 42, and the two-stage valve plate 45 is provided with a two-stage air inlet valve 452 corresponding to a two-stage air inlet cavity and a two-stage air outlet valve 451 corresponding to a two-stage air outlet cavity. As shown in fig. 10, the secondary piston 46 is provided with a piston ring 462, and a gasket 461 is provided inside the piston ring 462. The secondary piston 46 is also provided with a guide ring 463 at its outer side. The provision of the packing 461 and the guide ring 463 may improve the sealing effect of the piston against the cylinder wall. As shown in fig. 9, the secondary intake valve 452 is disposed below the valve plate, and the secondary exhaust valve 451 is disposed above the valve plate.

As shown in fig. 8 and 10, the primary piston 14 and the secondary piston 46 respectively comprise a piston pin 7, an oil storage chamber 72 is arranged in the piston pin 7, a lubricating hole 71 penetrating through the side wall is arranged on the side wall of the oil storage chamber 72, and high-temperature grease is filled in the oil storage chamber 72. The piston is lubricated with being connected of connecting rod, improves life. The inner walls of the first-stage cylinder and the second-stage cylinder are subjected to anodic oxidation treatment, so that the wear resistance is improved.

As shown in fig. 3 and 4, the compressor further comprises a base 62, and the motor 3, the primary compression assembly 1 and the secondary compression assembly 4 are all arranged on the base 62. The cooling device further comprises an air cooling assembly, the air cooling assembly comprises a fan 53 arranged below the base 62 and an air guide cover 51 coated on the outer sides of the primary transmission case 16 and the secondary transmission case 47, and cooling spaces are respectively formed between the air guide cover 51 and the primary transmission case 16 and between the air guide cover 51 and the secondary transmission case 47. The base 61 is also provided with an air guide hole 54 which corresponds to the fan 53 and is communicated with the cooling space. The air guide holes 54 and the air guide cover 51 jointly form an air flow passage to guide air flow to dissipate heat of the compression assembly, the air flow is concentrated, and the cooling effect is good. Meanwhile, the fan 53 is arranged below the bottom plate 61, the structure is compact and attractive, and the arrangement is more reasonable. Compared with the traditional arrangement mode, the fan 53 has less interference on the compression assembly and the motor 3, and is more convenient to assemble and maintain. The lateral wall of one-level cylinder and second grade cylinder is equipped with the heat dissipation portion, the heat dissipation portion be equipped with along the heat dissipation through-hole 52 of direction of height through heat dissipation portion, the lower extreme of heat dissipation through-hole 52 aligns with the cooling space. The air flow from the cooling space enters the heat dissipating through holes 52 to dissipate heat from the cylinder. A bottom plate 61 is connected below the base 62, and an installation space for installing the fan 53 is formed between the bottom plate 61 and the base 62. The bottom plate 61 protects the blower 53 and reduces the suction of foreign substances.

In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The intercooler, its characterized in that: the radiating device comprises a radiating bar, wherein the radiating bar comprises a plurality of radiating pipes arranged side by side, a radiating space is formed between every two adjacent radiating pipes, and radiating fins are arranged in the radiating space; a heat dissipation channel which axially penetrates through the heat dissipation pipe is arranged in each heat dissipation pipe; the heat dissipation bar is characterized by also comprising end sockets which are arranged at two ends of the heat dissipation bar and detachably connected with the heat dissipation bar, wherein an air distribution channel is arranged in each end socket; the plurality of heat dissipation channels are sequentially communicated end to end through the air distribution channel; and the cooling air inlet and the cooling air outlet are also included.

2. The intercooler of claim 1, wherein: the heat dissipation channel gradually shrinks from two ends to the middle.

3. An oil-free piston compressor, characterized in that: the motor is positioned between the first-stage compression component and the second-stage compression component, and the motor simultaneously drives the first-stage compression component and the second-stage compression component to work; the first-stage compression assembly comprises a first-stage transmission case and a first-stage air cylinder, and the second-stage compression assembly comprises a second-stage transmission case and a second-stage air cylinder; the intercooler as claimed in claim 1 or 2, wherein the first-stage air outlet of the first-stage compression assembly is communicated with the cooling air inlet of the intercooler through an air inlet pipe, and the second-stage air inlet of the second-stage compression assembly is communicated with the cooling air outlet of the intercooler through an air outlet pipe.

4. An oil-free piston compressor as claimed in claim 3, wherein: the primary cylinder comprises a primary cylinder body and a primary cylinder cover, a primary piston is arranged in the primary cylinder body, a primary air inlet valve is arranged on the primary piston, and a primary air inlet joint is arranged on the primary transmission case; the one-level cylinder body and the one-level cylinder cover between be equipped with the one-level valve plate, the one-level valve plate on be equipped with the one-level air outlet valve that corresponds with the one-level gas outlet.

5. An oil-free piston compressor as claimed in claim 4, wherein: the secondary cylinder comprises a secondary cylinder body and a secondary cylinder cover, a secondary air inlet cavity communicated with a secondary air inlet and a secondary air exhaust cavity communicated with a secondary air outlet are arranged in the secondary cylinder cover, and the secondary air inlet cavity is annularly arranged around the secondary air exhaust cavity; the cylinder body of the second stage is internally provided with a second stage piston, a second stage valve plate is arranged between the second stage cylinder body and the second stage cylinder cover, and the second stage valve plate is provided with a second stage air inlet valve corresponding to the second stage air inlet cavity and a second stage exhaust valve corresponding to the second stage exhaust cavity.

6. An oil-free piston compressor as claimed in claim 5, wherein: the secondary piston is provided with a piston ring, and the inner side of the piston ring is provided with a liner; and a guide ring is also arranged on the outer side of the secondary piston.

7. An oil-free piston compressor as claimed in claim 5 or 6, wherein: the first-stage piston and the second-stage piston respectively comprise piston pins, oil storage cavities are arranged in the piston pins, lubricating holes penetrating through the side walls are formed in the side walls of the oil storage cavities, and high-temperature-resistant lubricating grease is filled in the oil storage cavities.

8. An oil-free piston compressor as claimed in any one of claims 3 to 6, wherein: the motor, the primary compression assembly and the secondary compression assembly are all arranged on the base; the cooling device comprises a base, a fan and an air cooling assembly, wherein the fan is arranged below the base, the air cooling assembly comprises an air guide cover which covers the outer sides of a primary transmission case and a secondary transmission case, and cooling spaces are respectively formed between the air guide cover and the primary transmission case and between the air guide cover and the secondary transmission case; and the base is also provided with an air guide hole which corresponds to the fan and is communicated with the cooling space.

9. An oil-free piston compressor as claimed in claim 8, wherein: the lateral wall of one-level cylinder and second grade cylinder is equipped with the radiating part, the radiating part be equipped with along the direction of height run through the radiating through-hole of radiating part, the lower extreme and the cooling space of radiating through-hole align.

10. An oil-free piston compressor as claimed in claim 8, wherein: the fan is characterized in that a bottom plate is connected to the lower portion of the base, and an installation space for installing a fan is formed between the bottom plate and the base.