CN114001030B - Oil injection screw vacuum pump - Google Patents
Oil injection screw vacuum pump Download PDFInfo
- Publication number
- CN114001030B CN114001030B CN202111293415.9A CN202111293415A CN114001030B CN 114001030 B CN114001030 B CN 114001030B CN 202111293415 A CN202111293415 A CN 202111293415A CN 114001030 B CN114001030 B CN 114001030B
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- vacuum pump
- oil
- air
- air outlet
- injection screw
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/025—Lubrication; Lubricant separation using a lubricant pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/028—Means for improving or restricting lubricant flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/047—Cooling of electronic devices installed inside the pump housing, e.g. inverters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention relates to the technical field of vacuum pumps, and discloses an oil injection screw vacuum pump, which comprises a case, wherein the case is divided into a hot area and a cold area by a partition plate, a vacuum pump host, an air inlet filter, a power device and an oil-gas separation device are arranged in the hot area, an L-shaped air outlet pipe is arranged at the air outlet end of the oil-gas separation device, an oil pump is arranged between the oil-gas separation device and the vacuum pump host, an exhaust hood is arranged at the upper end of the case, an electric control cabinet and an operation panel are arranged in the cold area, and a heat dissipation grid is arranged under the operation panel. The invention adopts a cold and hot area separation design and bidirectional independent air circulation arrangement, has good ventilation and heat dissipation effects, prolongs the service life of electric elements, reduces the temperature of high-temperature oil in the oil-gas separation device by cooling the radiator and then entering the vacuum pump for oil circulation, thereby reducing the temperature of the screw vacuum pump better, and simultaneously improves the vacuum degree of the vacuum pump and strengthens the vacuum efficiency of the vacuum pump by arranging an automatically controlled gas-ballast structure.
Description
Technical Field
The invention relates to the technical field of vacuum pumps, in particular to an oil injection screw vacuum pump.
Background
The vacuum pump is a device or equipment for obtaining vacuum by pumping the pumped container by using a mechanical, physical, chemical or physicochemical method; the screw vacuum pump is widely used in the industries of metallurgy, chemical industry, food, electronic coating and the like, and belongs to one of vacuum pumps;
with the increase of market vacuum pump demand, old-fashioned water ring type, rotary vane type etc. vacuum pumps are increasingly unable to satisfy various demands such as corrosion resistance, environmental protection, silence, energy saving, etc. The screw vacuum pump has the advantages of environmental protection, simple structure, long service life, no pollution and the like, and can gradually replace the old vacuum pump;
the traditional screw vacuum pump has no cold and hot interval isolation, so that the overall temperature inside the vacuum pump is higher, and the service life of electric elements is influenced; most vacuum pumps have the exhaust port facing upwards vertically, so that the pipeline condensate water is easy to flow back; the radiator is generally horizontally arranged, dust is easy to deposit on the surfaces of the radiating fins after the radiator is used for a period of time, and the radiating effect is affected.
Disclosure of Invention
The invention provides an oil injection screw vacuum pump, which adopts a cold and hot area separation design and bidirectional independent air circulation arrangement, has good ventilation and heat dissipation effects, prolongs the service life of electric elements, and better cools the screw vacuum pump by cooling high-temperature oil in an oil-gas separation device through a radiator and then entering the vacuum pump for oil circulation, and simultaneously improves the vacuum degree of the vacuum pump and strengthens the vacuum efficiency of the vacuum pump by arranging an automatically controlled gas-ballast structure.
The oil injection screw vacuum pump comprises a case, wherein a partition board capable of separating a case space is arranged in the case, and the case is separated into a hot area and a cold area through the partition board;
the hot zone is internally provided with a vacuum pump host, an air inlet filter connected with the air inlet end of the vacuum pump host, a power device capable of driving the vacuum pump host and an oil-gas separation device connected with the air outlet end of the vacuum pump host, the air outlet end of the oil-gas separation device is provided with an L-shaped air outlet pipe, and an oil pump for oil circulation is arranged between the oil-gas separation device and the vacuum pump host;
the upper end of the case is provided with an exhaust hood, two air inlets of the exhaust hood are respectively communicated with the hot area and the cold area, exhaust fans are respectively arranged at the two air inlets, a radiator is arranged at the air inlet of the exhaust hood, which is positioned at the hot area, and an oil delivery pipe on the oil pump penetrates through the radiator and is connected with a vacuum pump host.
An electric control cabinet and an operation panel electrically connected with the electric control cabinet are arranged in the cold area, and a heat radiation grid communicated with the electric control cabinet is arranged under the operation panel.
Preferably, a first ventilation grille communicated with the hot zone is arranged on one side of the chassis, and a second ventilation grille communicated with the cold zone is arranged on one side away from the first ventilation grille.
Preferably, the included angle of the L-shaped air outlet pipe is the same, an air outlet nozzle is arranged at the end part of the air outlet pipe, a vent hole is arranged at the upper end of the air outlet nozzle, and a water dripping port is arranged at the bottom of the air outlet nozzle.
Preferably, a gas ballast structure capable of removing water vapor in the vacuum pump is arranged on one side of the vacuum pump main machine, the gas ballast structure comprises an air filter with an air inlet communicated with the cold area and a gas supplementing pipe for connecting the air filter with the vacuum pump main machine, and an electromagnetic valve is further arranged at the air outlet end of the air filter.
Preferably, a filter is further arranged on the connecting pipeline between the oil pump and the radiator.
Preferably, the power device is a motor, an air inlet end of the motor is communicated with the cold area, and air is absorbed from the cold area to dissipate heat of the motor.
Preferably, the air outlet direction of the air outlet of the exhaust hood is perpendicular to the ground, and a dust cover is arranged on the air outlet.
Preferably, an exhaust fan located at an air inlet of the cold zone is disposed directly under the radiator.
Compared with the prior art, the invention has the beneficial effects that:
(1) The electric control cabinet and the control panel are arranged in the cold area, so that the influence of the high-temperature area on the use function of the electric element is avoided, and the service life of the electric element is prolonged.
(2) Through arranging the exhaust hood on the radiator, the air outlet direction of the air outlet of the exhaust hood is perpendicular to the ground, and the dust cover is arranged on the air outlet, so that external sundries are prevented from entering the exhaust hood, and meanwhile, dust is also greatly prevented from entering the radiator, so that the radiator can continuously keep a good running state.
(3) The air outlet end of the oil-gas separation device is arranged to be an L-shaped air outlet pipe, the included angle is arranged to be 85 degrees, and the air outlet pipe is obliquely arranged, so that the backflow of pipeline condensate water caused by the vertical upward of the air outlet is avoided.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the present invention;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is an exploded view of the present invention;
fig. 5 is an enlarged view at a in fig. 4;
FIG. 6 is a second exploded view of the present invention;
FIG. 7 is a schematic view of the internal structure of the present invention (with the housing removed);
fig. 8 is a schematic structural view of the oil pump of the present invention.
Detailed Description
One embodiment of the present invention will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
As shown in fig. 1-8, the oil injection screw vacuum pump comprises a machine case 1, wherein a partition board 2 capable of separating the space of the machine case 1 is arranged in the machine case 1, and the machine case 1 is separated into a hot area 3 and a cold area 4 by the partition board 2, so that the influence of a high-temperature area on the use function of electric elements is avoided;
the hot zone 3 is internally provided with a vacuum pump main machine 5, an air inlet filter 6 connected with the air inlet end of the vacuum pump main machine 5, a power device capable of driving the vacuum pump main machine 5 and an oil-gas separation device 7 connected with the air outlet end of the vacuum pump main machine 5, the air outlet end of the oil-gas separation device 7 is provided with an L-shaped air outlet pipe 8, and an oil pump 9 for oil circulation is arranged between the oil-gas separation device 7 and the vacuum pump main machine 5;
the upper end of machine case 1 has arranged exhaust hood 10, exhaust hood 10's air intake has arranged two respectively with hot zone 3 and cold zone 4 communicate with each other, two exhaust fan 1001 has all been arranged to the air intake, exhaust hood 10 is located the air intake department of hot zone 3 and has arranged radiator 11, the oil pipe on oil pump 9 runs through radiator 11 and is connected with vacuum pump host 5, oil pump 9 takes out the oil in the oil-gas separation device 7 in the radiator 11, and the oil through the cooling is forced to be imported vacuum pump host 5 and forms the oil circulation, avoids the host machine to lose oil under the high vacuum state and causes the high temperature to impel vacuum pump host 5 can reach the vacuum degree of wider range.
An electric control cabinet 12 and an operation panel 13 electrically connected with the electric control cabinet 12 are arranged in the cold area 4, a heat radiation grille 14 communicated with the electric control cabinet 12 is arranged under the operation panel 13, external air enters the electric control cabinet 12 through the heat radiation grille 14 and is discharged from the exhaust hood 10 through an exhaust fan 1001 arranged in the cold area 4, and air circulation in the cold area 4 cools the electric control cabinet 12.
Specifically, a first ventilation grille 15 is disposed on one side of the chassis 1 and is communicated with the hot zone 3, a second ventilation grille 16 is disposed on one side far away from the first ventilation grille 15 and is communicated with the cold zone 4, under the action of an exhaust fan 1001, air in the hot zone 3 enters the hot zone 3 through the first ventilation grille 15 and is exhausted through an exhaust hood 10, so that temperature control in the hot zone 3 is completed, air in the cold zone 4 enters the cold zone 4 through the second ventilation grille 16 and is exhausted through the exhaust hood 10, so that temperature control in the cold zone 4 is completed, the hot zone 3 and the cold zone 4 are independently air-inlet, and high-temperature air in the hot zone 3 is independently circulated, so that the influence on the electric control cabinet 12 and the control panel 13 in the cold zone 4 is greatly avoided.
Specifically, contained angle of L type outlet duct 8 is 85 degrees, outlet nozzle 17 has been arranged to the tip of outlet duct 8, outlet nozzle 17's upper end is arranged and is being used for air vent 18, outlet nozzle 17's bottom has been arranged and is being used for water drip 19, when ambient temperature is less than vacuum pump exhaust temperature, the exhaust vapor meets condensation knot, can form the comdenstion water, and the outlet duct design is 85 degrees slope structures, can collect the comdenstion water that separates in water drip 19 department and discharge through the water pipe at last, avoids comdenstion water backward flow to influence the quality of oil in the oil-gas separation device 7.
Specifically, a ballast structure capable of removing water vapor in the vacuum pump is arranged on one side of the vacuum pump main unit 5, the ballast structure comprises an air filter 20 with an air inlet communicated with the cold area 4 and an air supplementing pipe 21 connecting the air filter 20 with the vacuum pump main unit 5, an electromagnetic valve 22 is also arranged at an air outlet end of the air filter 20, the opening and closing of the ballast structure are controlled by the electromagnetic valve 22, the air at room temperature is forcedly input into a compression cavity of the vacuum pump to be mixed with the pumped air, and when the mixed gas is compressed to an exhaust pressure, the vapor partial pressure in the mixed gas can be kept below the saturated vapor pressure in a pump temperature state due to the aeration effect, so that the vapor is not condensed and is discharged by the vacuum pump together with other gases.
Specifically, a filter 23 is further disposed on the connecting pipe between the oil pump 9 and the radiator 11 to filter the oil to be circulated, so as to further reduce the moisture in the oil and improve the quality of the circulated oil.
Specifically, the power device is a motor 25, an air inlet end of the motor 25 is communicated with the cold area 4, and air is absorbed from the cold area 4 to dissipate heat of the motor 25.
Specifically, the air outlet direction of the air outlet of the exhaust hood 10 is perpendicular to the ground, and the dust cover 24 is arranged on the air outlet, so that external sundries are prevented from entering the exhaust hood 10, and meanwhile, dust is also greatly prevented from entering the radiator 11, so that the radiator 11 can continuously keep a good running state.
Specifically, the exhaust fan 1001 located at the air inlet of the cold area 4 is disposed directly under the radiator 11, and the exhaust fan 1001 can radiate heat from the radiator 11 better.
When the invention is used, the electric control area and the working area of the vacuum pump are separated by the partition board 2, the air circulation in the hot area 3 is separated by the partition board 2, the air circulation in the hot area 3 enters the hot area 3 through the first ventilation grating 15 and is discharged through the exhaust hood 10, the air circulation in the cold area 4 enters the cold area 4 through the second ventilation grating 16 and is discharged through the exhaust hood 10, thus greatly avoiding the influence of the high temperature of the working area on the electric control area, arranging a ballast structure capable of removing the water vapor in the vacuum pump on the vacuum pump host 5, controlling the opening and closing of the ballast structure by the electromagnetic valve 22, forcibly inputting the air dried at room temperature into the compression cavity of the vacuum pump to be mixed with the pumped air when the vacuum pump host 5 works due to the intervention of the ballast structure, and compressing the mixed air to the exhaust pressure, because the vapor partial pressure in the vapor is kept below the saturated vapor pressure in the pump temperature state by the aeration effect, the vapor is not condensed and is discharged by the vacuum pump together with other gases, the temperature of the vacuum pump main machine 5 is reduced by arranging the oil pump 9, the oil pump 9 pumps the oil which is input into the oil-gas separation device 7 by the vacuum pump main machine 5 into the radiator 11, the cooled oil is forcedly input into the vacuum pump main machine 5 to form oil circulation, the high temperature caused by the oil loss of the main machine in the high vacuum state is avoided, thereby the vacuum pump main machine 5 can reach a wider vacuum degree, the gas separated by the oil-gas separation device 7 is discharged by the air outlet pipe 8, because the air outlet pipe 8 is arranged in an L shape, and the included angle is set to be 85 ℃, if the environment temperature is lower than the exhaust temperature of the vacuum pump, the discharged vapor encounters a condensation junction, condensed water is formed, the air outlet pipe is designed to be in an 85-degree inclined structure, the separated condensed water can be collected at the water dripping port 19 and finally discharged through a water pipe, so that the phenomenon that the quality of oil is influenced due to the fact that the condensed water flows back into the oil-gas separation device 7 is avoided.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In summary, the oil injection screw vacuum pump provided by the invention adopts a cold and hot area separation design and bidirectional independent air circulation arrangement, has a good ventilation and heat dissipation effect, prolongs the service life of electric elements, and better cools the screw vacuum pump by cooling high-temperature oil in the oil-gas separation device through a radiator and then entering the vacuum pump for oil circulation, and meanwhile improves the vacuum degree of the vacuum pump and strengthens the vacuum efficiency of the vacuum pump by arranging an automatically controlled gas-ballast structure.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. The oil injection screw vacuum pump comprises a machine case (1), and is characterized in that a partition plate (2) capable of separating the space of the machine case (1) is arranged in the machine case (1), and the machine case (1) is separated into a hot area (3) and a cold area (4) through the partition plate (2);
a vacuum pump host machine (5), an air inlet filter (6) connected with an air inlet end of the vacuum pump host machine (5), a power device capable of driving the vacuum pump host machine (5) and an oil-gas separation device (7) connected with an air outlet end of the vacuum pump host machine (5) are arranged in the hot zone (3), an L-shaped air outlet pipe (8) is arranged at the air outlet end of the oil-gas separation device (7), and an oil pump (9) for oil circulation is arranged between the oil-gas separation device (7) and the vacuum pump host machine (5);
an exhaust hood (10) is arranged at the upper end of the case (1), two air inlets of the exhaust hood (10) are respectively communicated with the hot zone (3) and the cold zone (4), exhaust fans (1001) are respectively arranged at the two air inlets, a radiator (11) is arranged at the air inlet of the exhaust hood (10) positioned at the hot zone (3), and an oil delivery pipe on the oil pump (9) penetrates through the radiator (11) and is connected with a vacuum pump host (5);
an electric control cabinet (12) and an operation panel (13) electrically connected with the electric control cabinet (12) are arranged in the cold area (4), and a heat radiation grid (14) communicated with the electric control cabinet (12) is arranged under the operation panel (13).
2. A fuel injection screw vacuum pump according to claim 1, wherein: a first ventilation grille (15) communicated with the hot zone (3) is arranged on one side of the chassis (1), and a second ventilation grille (16) communicated with the cold zone (4) is arranged on one side away from the first ventilation grille (15).
3. A fuel injection screw vacuum pump according to claim 1, wherein: the included angle of the L-shaped air outlet pipe (8) is 85 degrees, an air outlet nozzle (17) is arranged at the end part of the air outlet pipe (8), an air vent (18) is arranged at the upper end of the air outlet nozzle (17), and a water dripping port (19) is arranged at the bottom of the air outlet nozzle (17).
4. A fuel injection screw vacuum pump according to claim 1, wherein: a gas ballast structure capable of removing water vapor in the vacuum pump is arranged on one side of the vacuum pump main machine (5), the gas ballast structure comprises an air filter (20) with an air inlet communicated with the cold area (4) and an air supplementing pipe (21) connected with the air filter (20) and the vacuum pump main machine (5), and an electromagnetic valve (22) is further arranged at the air outlet end of the air filter (20).
5. A fuel injection screw vacuum pump according to claim 1, wherein: a filter (23) is also arranged on the connecting pipeline between the oil pump (9) and the radiator (11).
6. A fuel injection screw vacuum pump according to claim 1, wherein: the power device is a motor (25), an air inlet end of the motor (25) is communicated with the cold area (4), and air is absorbed from the cold area (4) to dissipate heat of the motor (25).
7. A fuel injection screw vacuum pump according to claim 1, wherein: the air outlet direction of the air outlet of the exhaust hood (10) is vertical to the ground, and a dust cover (24) is arranged on the air outlet.
8. A fuel injection screw vacuum pump as claimed in claim 7, wherein: an exhaust fan (1001) located at an air inlet of the cold zone (4) is arranged directly below the radiator (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293415.9A CN114001030B (en) | 2021-11-03 | 2021-11-03 | Oil injection screw vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293415.9A CN114001030B (en) | 2021-11-03 | 2021-11-03 | Oil injection screw vacuum pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114001030A CN114001030A (en) | 2022-02-01 |
| CN114001030B true CN114001030B (en) | 2023-04-25 |
Family
ID=79926777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111293415.9A Active CN114001030B (en) | 2021-11-03 | 2021-11-03 | Oil injection screw vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114001030B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1229243A2 (en) * | 2001-02-05 | 2002-08-07 | Ingersoll-Rand Company | Enclosure for an air compressor |
| CN102364108A (en) * | 2011-05-12 | 2012-02-29 | 上海英格索兰压缩机有限公司 | Frequency conversion type screw air compressor electric cabinet |
| JP2018017153A (en) * | 2016-07-27 | 2018-02-01 | 株式会社日立産機システム | Compressor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254610C (en) * | 2000-08-07 | 2006-05-03 | 株式会社日立制作所 | Box type complete screw compressor |
| JP5444160B2 (en) * | 2010-08-10 | 2014-03-19 | 株式会社神戸製鋼所 | Package type compression device |
| CN202100475U (en) * | 2011-05-12 | 2012-01-04 | 上海英格索兰压缩机有限公司 | Heat dissipation type air compressor |
| JP6051271B2 (en) * | 2015-07-01 | 2016-12-27 | 株式会社日立産機システム | Oil-free screw compressor |
| EP3492698A1 (en) * | 2017-11-30 | 2019-06-05 | Agilent Technologies, Inc. (A Delaware Corporation) | Vacuum pumping system provided with a soundproofing arrangement |
| CN212615372U (en) * | 2020-01-19 | 2021-02-26 | 江西氟斯新能源科技有限公司 | Oil-free and water-free vortex air compressor |
-
2021
- 2021-11-03 CN CN202111293415.9A patent/CN114001030B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1229243A2 (en) * | 2001-02-05 | 2002-08-07 | Ingersoll-Rand Company | Enclosure for an air compressor |
| CN102364108A (en) * | 2011-05-12 | 2012-02-29 | 上海英格索兰压缩机有限公司 | Frequency conversion type screw air compressor electric cabinet |
| JP2018017153A (en) * | 2016-07-27 | 2018-02-01 | 株式会社日立産機システム | Compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114001030A (en) | 2022-02-01 |
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