Highly integrated air compressor

Abstract

The utility model provides a highly integrated air compressor which comprises a complete machine shell, an oil-gas separator is arranged above the complete machine shell, an integrated main machine is arranged in the complete machine shell, the integrated main machine comprises a screw machine pump head and an oil barrel, the oil barrel is installed at one end of the screw machine pump head, the screw machine pump head is connected with an air filter through an air inlet valve, and lubricating oil is contained in the oil barrel. An oil separation component is arranged on the oil drum, a main oil pipe is arranged in the oil drum, extends to the oil separation component from the bottom of the oil drum, communicates with the inlet end of the oil separation component and is used for guiding an oil-gas mixture entering from the bottom of the oil drum, conducting primary separation and guiding separated compressed air into the oil separation component for oil-gas subdivision. And the outlet end of the oil separation assembly is communicated with the upper part of the oil drum, so that the subdivided lubricating oil flows back into the oil drum, and the subdivided compressed air flows out through the high-pressure air outlet. Multiple heat preservation structures are arranged, the temperature of the device is kept, oil and water in the pump head are prevented from being emulsified, poor water accumulation faults are avoided, airflow is internally circulated, and heat recovery is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a highly integrated air compressor. Background Art

[0002] Air compressor, full name air compressor, is a device that compresses air or other gases to a high pressure state to meet various industrial and daily needs. The working principle mainly includes three processes: intake, compression and exhaust.

[0003] At present, when the air compressor is compressing gas, it is best for the oil in the screw main unit to be in a liquid state. However, in the case of relatively low temperature, the oil in the screw main unit will become viscous, thus affecting the gas compression efficiency and the generated gas pressure is also unstable. In the prior art, the screw main unit is often heated by external electric heating, which invisibly increases the use of electricity and increases the production cost. In addition, the weight of the screw main unit is made of metal, so it is relatively heavy and not easy to move. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a highly integrated air compressor.

[0005] The technical solution to be adopted by the utility model to solve the technical problem is: a highly integrated air compressor, including a whole machine shell, an oil-gas separator is arranged above the shell, an integrated main engine is arranged inside the whole machine shell, the integrated main engine includes a screw machine pump head and an oil drum, the oil drum is installed at one end of the screw machine pump head, and an air intake valve is arranged on the screw machine pump head, and an air filter is arranged on the air intake valve, the air filter is mainly used to inhale external air and perform preliminary filtering on the air to filter out impurities in the air, and the air enters the screw machine pump head after filtering, and is pressurized to form a pressurized oil-gas mixture , and then enters the oil barrel, which is filled with lubricating oil. The oil barrel is provided with an oil separation component, and the oil barrel is provided with a main oil pipe inside. The main oil pipe extends from the bottom of the oil barrel to the oil separation component and is connected with the inlet end of the oil separation component. The oil separation component is connected with the inside of the oil barrel through the main oil pipe, which is used to guide the oil and gas mixture entering from the bottom of the oil barrel, and perform preliminary separation, and introduce the separated compressed air into the oil separation component for oil and gas subdivision. The outlet end of the oil separation component is connected with the upper part of the oil barrel, so that the subdivided lubricating oil flows back into the oil barrel, and the subdivided compressed air flows out through the high-pressure gas outlet. The oil separation component includes an oil separation core and an oil separation shell, and the oil separation core is arranged inside the oil separation shell, and both are fixedly connected to the upper part of the oil barrel.

[0006] Further, the main oil pipe includes a first pipe section, a second pipe section, an oil-gas separation pipe section, and a gas pipe section connected in sequence. The first pipe section is horizontally arranged at the bottom of the oil barrel, with one end serving as the inlet for lubricating oil and compressed air, and the other end connected to the bottom of the second pipe section. The second pipe section is vertically arranged inside the right side wall of the oil barrel, and its upper end is connected to the oil-gas separation pipe section. The oil-gas separation pipe section is a cyclone separation structure with a smaller upper part and a larger lower part, and the upper end of the oil-gas separation pipe section is connected to the gas pipe section. The gas pipe section is a multi-segment pipeline bent up and down, and the other end of the gas pipe section is connected to the inlet end of the oil separator assembly.

[0007] Among them, the first pipe section and the second pipe section contain an oil-gas mixture. When the oil-gas mixture passes through the oil-gas separation pipe section, the oil-gas mixture undergoes high-speed cyclone separation. Under the action of gravity, the lubricating oil drips into the oil barrel from the lower end of the oil-gas separation pipe section, while the compressed air continues to flow upward, flows through the gas pipe section, and then reaches the inlet end of the oil separator assembly. The oil-gas mixture is preliminarily separated in the oil-gas separation pipe section.

[0008] Further, a temperature sensor is provided at the connection between the first pipe section and the second pipe section, which is used to monitor the temperature of the lubricating oil in the oil barrel. When the temperature exceeds the specified temperature, the cooling fan is controlled to start through a frequency conversion controller.

[0009] Further, a safety valve is provided at the connection between the oil-gas separation pipe section and the gas pipe section. The main function of the safety valve is to prevent the compressed air inside the barrel from being too high and play a role in unloading protection when it exceeds a certain pressure.

[0010] Further, the oil barrel is made of alloy. The alloy shell makes the equipment lightweight and heat-resistant.

[0011] Further, a cooler and a cooling fan are also included. The cooler and the cooling fan are sequentially arranged at the rear of the integrated main unit. The cooling fan is installed on the rear ventilation opening of the whole machine shell and is located behind the cooler.

[0012] Further, a frequency conversion controller is also included, which is arranged on the left side of the cooler. The frequency conversion controller controls all operating states of the screw machine, monitors, starts, stops, changes the rotational speed, etc. The frequency conversion controller and the operation panel together form the system's electric control unit.

[0013] Further, in order to avoid the influence of impurities in the lubricating oil on the cooler, an oil filter is also included. The inlet end of the oil filter is connected to the bottom of the oil barrel through a first pipeline, the outlet end of the oil filter is connected to the inlet end of the cooler through a second pipeline, and the outlet end of the cooler is connected to the screw pump head through a third pipeline.

[0014] After being pressurized by the screw pump head, the inside of the oil barrel is compressed air with relatively high pressure. Under the high pressure, the lubricating oil at the bottom of the oil barrel enters the oil filter through the first pipeline. The impurities in the lubricating oil are filtered by the oil filter, and the filtered lubricating oil enters the cooler. The cooler cools the lubricating oil, and the heat dissipated warms up the screw pump head.

[0015] Furthermore, to ensure the air circulation inside the air compressor, the whole machine housing is also provided with a front ventilation opening and a side ventilation opening, both of which are grid-shaped.

[0016] Furthermore, for the convenience of operation and emergency response, an operation panel and an emergency stop button are provided on the front of the whole machine housing. The operation panel is used to input information and display the operating status. For example, the limited temperature of the lubricating oil can be set to facilitate the startup of the cooling fan. The emergency stop button is used to achieve emergency shutdown. During operation, just press the emergency stop button directly.

[0017] The beneficial effects of the present utility model are as follows:

[0018] (1) The main oil pipe is arranged along the wall of the oil barrel. The oil barrel is made of alloy material, which is convenient for heat dissipation on the one hand, and reduces the weight on the other hand, realizing lightweight design. At the same time, the alloy material is resistant to high pressure.

[0019] (2) The cooling fan cools the lubricating oil. When the oil temperature exceeds the limited temperature, the fan is started. When the temperature drops to the limited temperature range, the cooling fan stops running, and the temperature of the lubricating oil is within a certain range during operation.

[0020] (3) The cooler is used to dissipate heat from the lubricating oil, and the cooler is directly opposite to the integrated main engine. Therefore, the heat dissipated by the cooler can also warm up the screw pump head, maintain the temperature of the equipment, prevent the oil and water in the screw pump head from emulsifying and the problem of poor water accumulation, and ensure its reliable operation.

[0021] (4) Heat dissipation is carried out through the cooler and the oil barrel housing. A multi-layer heat preservation structure is set up, and the internal energy of the compressed air circulates in the equipment to maintain the temperature of the equipment, prevent the oil liquid in the pump head from solidifying, and achieve heat recovery through the internal circulation of the air flow to heat the pump head, the oil and gas circuit, etc. Description of the Drawings

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0023] Figure 1 is a three-dimensional structure schematic diagram of the highly integrated air compressor of the present utility model.

[0024] Figure 2 is a three-dimensional structure schematic diagram of the highly integrated air compressor of the present utility model.

[0025] Figure 3 It is a schematic diagram of a partial structure of a highly integrated air compressor.

[0026] Figure 4 It is a schematic diagram of a partial structure of a highly integrated air compressor.

[0027] Figure 5 It is a schematic diagram of the internal structure of a highly integrated air compressor.

[0028] Figure 6 It is a schematic diagram of the oil and gas flow direction.

[0029] In the figure: 1. Whole machine shell, 1.1. Operation panel, 1.2. Emergency stop button, 1.3. Front ventilation opening, 1.4. Rear ventilation opening, 1.5. Side ventilation opening, 1.6. Foundation feet, 1.7. Power socket, 1.8. High-pressure air outlet, 2. Oil and gas separator, 3. Cooling fan, 4. Air filter, 5. Oil filter, 6. Cooler, 7. Integrated main unit, 7.1. Screw pump head, 7.2. Oil barrel, 7.3. Intake valve, 7.4. Safety valve, 7.5. Temperature sensor, 8. Oil separation component, 8.1. Oil separation core, 8.2. Oil separation shell, 9. Frequency conversion controller, 10. Main oil pipe, 10.1. First pipe section, 10.2. Second pipe section, 10.3. Oil and gas separation pipe section, 10.4. Gas pipe section, 11. First pipeline, 12. Second pipeline, 13. Third pipeline, 14. Motor, 15. Lubricating oil. Specific embodiments

[0030] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only schematically showing the basic structure of the present utility model. Therefore, they only show the components related to the present utility model. Directions and references (such as up, down, left, right, etc.) can only be used to assist in the description of the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the claimed subject matter is only defined by the appended claims and their equivalents.

[0031] Such as Figure 1 And Figure 2As shown in the figure, a highly integrated air compressor of the present utility model includes a whole machine housing 1. An oil-gas separator 2 is provided above the housing. An operation panel 1.1 and an emergency stop button 1.2 are provided in front of the whole machine housing 1. The operation panel 1.1 is used for inputting information and displaying the operating state. For example, setting the limited temperature of the lubricating oil 15 to facilitate starting the cooling fan 3. The emergency stop button 1.2 is used to achieve emergency shutdown. During operation, just press the emergency stop button 1.2 directly. In this embodiment, both the operation panel 1.1 and the emergency stop button 1.2 are arranged on the left side in front of the whole machine housing 1. A high-pressure air outlet 1.8 is also provided on the side of the whole machine housing 1. The high-pressure air outlet 1.8 is connected to the air outlet of the oil separation assembly 8 through a pipeline for leading out compressed air. Four feet 1.6 are provided at the bottom of the whole machine housing 1 to facilitate leveling and support. A power socket 1.7 is provided at the rear of the whole machine housing 1. Front ventilation openings 1.3, rear ventilation openings 1.4 and side ventilation openings 1.5 are also provided on the whole machine housing 1. Both the front ventilation openings 1.3 and the side ventilation openings 1.5 are grid-shaped. In this embodiment, the front ventilation openings 1.3 are large long-strip-shaped grids, and the side ventilation openings 1.5 are multiple groups of small strip-shaped grids. The rear ventilation openings 1.4 are used for installing the cooling fan 3.

[0032] As Figures 3 - 5 shown, an integrated main unit 7 is provided inside the whole machine housing 1. The integrated main unit 7 includes a screw machine pump head 7.1 and an oil barrel 7.2. The screw machine pump head 7.1 is connected to the motor 14, and the screw machine pump head 7.1 is driven by the motor 14. The screw machine pump head 7.1 is made of ductile iron, and the oil barrel 7.2 is made of alloy. In this embodiment, the alloy material is aluminum alloy. The oil barrel 7.2 is installed at one end of the screw machine pump head 7.1, and an air inlet valve 7.3 is provided on the screw machine pump head 7.1. An air filter 4 is provided on the air inlet valve 7.3. The air filter 4 is mainly used for sucking in external air and preliminarily filtering the air to remove impurities in the air. After the air is filtered, it enters the screw machine pump head 7.1 for pressurization to form a pressurized oil-gas mixture, and then enters the oil barrel 7.2. Lubricating oil 15 is filled in the oil barrel 7.2. An oil separation assembly 8 is provided on the oil barrel 7.2. A main oil pipe 10 is provided inside the oil barrel 7.2. The main oil pipe 10 extends from the bottom of the oil barrel 7.2 to the oil separation assembly 8 and is communicated with the inlet end of the oil separation assembly 8. Through the main oil pipe 10, the oil separation assembly 8 is communicated with the inside of the oil barrel 7.2 to guide the oil-gas mixture entering from the bottom of the oil barrel 7.2 and perform preliminary separation, and the separated compressed air is introduced into the oil separation assembly 8 for oil-gas fine separation. The outlet end of the oil separation assembly 8 is communicated with the upper part of the oil barrel 7.2, so that the lubricating oil 15 after fine separation flows back into the oil barrel 7.2, and the compressed air after fine separation flows out through the high-pressure air outlet 1.8.

[0033] As Figure 5As shown in the figure, it also includes a cooler 6, a cooling fan 3, and a variable frequency controller 9. The cooler 6 and the cooling fan 3 are sequentially arranged at the rear of the integrated main unit 7. The cooling fan 3 is installed on the rear ventilation opening 1.4 of the whole machine shell 1 and is located behind the cooler 6. The variable frequency controller 9 is arranged on the left side of the cooler 6. The variable frequency controller 9 controls all the operating states of the screw machine, monitors, starts, stops, changes the rotational speed and other actions. The variable frequency controller 9 and the operation panel 1.1 jointly form the system electric control unit. In order to avoid the influence of impurities in the lubricating oil 15 on the cooler 6, an oil filter 5 is also included. The inlet end of the oil filter 5 is connected to the bottom of the oil barrel 7.2 through a first pipeline, the outlet end of the oil filter 5 is connected to the inlet end of the cooler 6 through a second pipeline, and the outlet end of the cooler 6 is connected to the screw machine pump head 7.1 through a third pipeline. Since the inside of the oil barrel 7.2 is compressed air after being pressurized by the screw machine pump head 7.1 and its pressure is relatively high, the lubricating oil 15 at the bottom of the oil barrel 7.2 enters the oil filter 5 through the first pipeline under the action of high pressure. The impurities in the lubricating oil 15 are filtered by the oil filter 5, and the filtered lubricating oil 15 enters the cooler 6. The lubricating oil 15 is cooled by the cooler 6, and the heat dissipated warms up the screw machine pump head 7.1.

[0034] As Figure 6As shown in the figure, the oil separator assembly 8 includes an oil separator core 8.1 and an oil separator housing 8.2. The oil separator core 8.1 is arranged inside the oil separator housing 8.2, and both are fixedly connected to the upper part of the oil barrel 7.2. The main oil pipe 10 includes a first pipe section 10.1, a second pipe section 10.2, an oil-gas separation pipe section 10.3, and a gas pipe section 10.4 that are connected in sequence. The first pipe section 10.1 is horizontally arranged at the bottom of the oil barrel 7.2, and one end thereof serves as the inlet of the lubricating oil 15 and compressed air, and the other end is connected to the bottom of the second pipe section 10.2. The second pipe section 10.2 is vertically arranged inside the right side wall of the oil barrel 7.2, and the upper end is connected to the oil-gas separation pipe section 10.3. The oil-gas separation pipe section 10.3 is a cyclone separation structure with a smaller upper part and a larger lower part, and the upper end of the oil-gas separation pipe section 10.3 is connected to the gas pipe section 10.4. The gas pipe section 10.4 is a multi-segment pipeline that bends up and down, and the other end of the gas pipe section 10.4 is connected to the inlet end of the oil separator assembly 8. Among them, the first pipe section 10.1 is an independent pipe section made of aluminum alloy, and the second pipe section 10.2, the oil-gas separation pipe section 10.3, and the gas pipe section 10.4 are all arranged inside the inner wall of the oil barrel 7.2; the first pipe section 10.1 and the second pipe section 10.2 contain an oil-gas mixture. When the oil-gas mixture passes through the oil-gas separation pipe section 10.3, under the action of gravity, the lubricating oil 15 drips into the oil barrel 7.2 from the lower end of the oil-gas separation pipe section 10.3, and the compressed air continues to flow upward. After passing through the gas pipe section 10.4, it flows to the inlet end of the oil separator assembly 8, and the oil-gas mixture is preliminarily separated in the oil-gas separation pipe section 10.3. A temperature sensor 7.5 is provided at the connection between the first pipe section 10.1 and the second pipe section 10.2 to monitor the temperature of the lubricating oil 15 in the oil barrel 7.2. When the temperature exceeds the limit temperature, the cooling fan 3 is controlled to start through the frequency conversion controller 9. A safety valve 7.4 is provided at the connection between the oil-gas separation pipe section 10.3 and the gas pipe section 10.4 to prevent the compressed air inside the barrel from being too high and unloading and protecting when exceeding a certain pressure.

[0035] Working principle:

[0036] The air filter 4 sucks in the external air and preliminarily filters the air to remove impurities in the air. After the air is filtered, it enters the screw pump head 7.1 for pressurization to form a pressurized oil-gas mixture, and then enters the oil barrel 7.2; as Figure 6As shown in the figure, the red arrow in the figure indicates the direction of the compressed air, and the blue arrow indicates the direction of the lubricating oil 15. The oil-gas mixture at the bottom of the oil barrel 7.2 enters the oil-gas separation pipe section 10.3 after passing through the first pipe section 10.1 and the second pipe section 10.2. After preliminary separation in the oil-gas separation pipe section 10.3, the oil-gas mixture undergoes high-speed cyclone separation. The lubricating oil 15 drips into the oil barrel 7.2 from the lower end of the oil-gas separation pipe section 10.3 under the action of gravity, while the compressed air continues to flow upward. After passing through the gas pipe section 10.4, it flows to the inlet end of the oil separator assembly 8. The oil-gas mixture undergoes preliminary separation in the oil-gas separation pipe section 10.3. The separated compressed air enters the gas pipe section 10.4. After passing through the tortuous passage of the gas pipe section 10.4, it enters the oil separator assembly 8 for further oil-gas separation. The compressed air after further separation is output from the high-pressure gas outlet 1.8 and can be stored in a gas tank or directly transported through a pipeline to the required process for direct use.

[0037] In addition, the compressed air in the oil barrel 7.2 has a relatively high pressure. Under the action of high pressure, the lubricating oil 15 at the bottom of the oil barrel 7.2 enters the oil filter 5 through the first pipeline. The impurities in the lubricating oil 15 are filtered by the oil filter 5. The filtered lubricating oil 15 enters the cooler 6, and the cooler 6 cools the lubricating oil 15. The heat dissipated raises the temperature of the screw pump head 7.1.

[0038] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant workers can make various changes and modifications without departing from the scope of the present invention. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A highly integrated air compressor, characterized in that: It includes a whole machine shell, an oil-gas separator is arranged above the shell, an integrated main engine is arranged inside the whole machine shell, the integrated main engine includes a screw machine pump head and an oil barrel, the oil barrel is installed at one end of the screw machine pump head, and an air intake valve is arranged on the screw machine pump head, an air filter is arranged on the air intake valve, the oil barrel is filled with lubricating oil, an oil separation component is arranged on the oil barrel, a main oil pipe is arranged inside the oil barrel, the main oil pipe extends from the bottom of the oil barrel to the oil separation component, and is connected with the inlet end of the oil separation component, the oil separation component is connected with the inside of the oil barrel through the main oil pipe, and is used for guiding the oil and gas mixture entering from the bottom of the oil barrel, and performing preliminary separation, and introducing the separated compressed air into the oil separation component for oil and gas segmentation, the outlet end of the oil separation component is connected with the upper part of the oil barrel, so that the segmented lubricating oil flows back into the oil barrel, and the segmented compressed air flows out through the high-pressure gas outlet.

2. The highly integrated air compressor according to claim 1, characterized in that: The main oil pipe includes a first pipe section, a second pipe section, an oil-gas separation pipe section and a gas pipe section which are connected in sequence. The first pipe section is horizontally arranged at the bottom of the oil barrel, and one end of the first pipe section serves as an inlet for lubricating oil and compressed air, and the other end is connected to the bottom of the second pipe section. The second pipe section is vertically arranged on the right side wall of the oil barrel, and the upper end is connected to the oil-gas separation pipe section. The oil-gas separation pipe section is a cyclone separation structure with a small top and a large bottom, and the upper end of the oil-gas separation pipe section is connected to the gas pipe section. The gas pipe section is a multi-section pipeline that bends up and down, and the other end of the gas pipe section is connected to the inlet end of the oil separation component.

3. The highly integrated air compressor according to claim 2, characterized in that: A temperature sensor is provided at the connection between the first pipe section and the second pipe section.

4. The highly integrated air compressor according to claim 2, characterized in that: A safety valve is provided at the connection between the oil-gas separation pipe section and the gas pipe section.

5. The highly integrated air compressor according to claim 1, characterized in that: The oil barrel is made of alloy.

6. The highly integrated air compressor according to claim 1, characterized in that: It also includes a cooler and a cooling fan, which are arranged at the rear of the integrated host.

7. The highly integrated air compressor according to claim 6, characterized in that: It also includes a frequency conversion controller, which is arranged on the left side of the cooler.

8. The highly integrated air compressor according to claim 6, characterized in that: It also includes an oil filter, the inlet end of the oil filter is connected to the bottom of the oil barrel through a first pipeline, the outlet end of the oil filter is connected to the inlet end of the cooler through a second pipeline, and the outlet end of the cooler is connected to the screw machine pump head through a third pipeline.

9. The highly integrated air compressor according to claim 1, characterized in that: The whole machine shell is also provided with a front vent and a side vent, and the front vent and the side vent are both in a grid shape.

10. The highly integrated air compressor according to claim 1, characterized in that: An operation panel and an emergency stop button are arranged in front of the whole machine housing. The operation panel is used to input information and display the operating status, and the emergency stop button is used to achieve emergency stop.

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