CN208619350U - A kind of vacuum pump with auxiliary exhaust mechanism - Google Patents

Abstract

The utility model relates to a kind of vacuum pumps with auxiliary exhaust mechanism, including fuel tank, the pump housing being arranged in fuel tank and the gs-oil separator that fuel tank side is set, the pump housing includes the first row port being arranged at the top of it, the gs-oil separator includes shell and the exhaust filter core that is immobilized in the shell, second exhaust port is provided on shell, the fuel tank is provided with the mouth excessively docked with the entrance of exhaust filter core close to the side of shell above first row port, the auxiliary exhaust mechanism being connected to enclosure interior is provided on fuel tank, the auxiliary exhaust mechanism includes the training wall for inwardly swelling and being formed between inner wall of oil tank discharge chamber from inner wall of oil tank, the third exhaust outlet for being connected to discharge chamber is provided in the outer wall of fuel tank, the vacuum pump good oil gas separation effect, the installation position selection of externally connected exhaust pipe is more.

Description

A kind of vacuum pump with auxiliary exhaust mechanism

Technical field

The utility model relates to field of vacuum, more specifically, it relates to a kind of vacuum with auxiliary exhaust mechanism Pump.

Background technique

Vacuum pump is a kind of rotating volume-varying gas transfer pump, by by pumping container carry out pumping take out these Container obtains vacuum, is widely used in pigment chemical industry, tile machinery, Cryo Equipment, papermaking equipment, medication chemistry, food machinery, work The fields such as industry electric furnace, electronics industry, vacuum equipment, chemical fertilizer, metallurgy, petroleum, mine, basement process.

Vacuum pump generally comprises fuel tank, is arranged in fuel tank the pump housing and the motor for driving the pump housing, pump body are provided with Stator, rotor and blade, the output shaft of motor are connected with the output shaft of rotor by shaft coupling, and the principle of vacuum pump is: vacuum When the rotor of pump drives blade rotation, blade borrows centrifugal force to be close to cavity wall, and porting is separated, and makes inlet chamber container Periodically expand and air-breathing, discharge chamber volume then periodically reduce and compressed gas, oil pumping hole is taken out simultaneously when inlet chamber air-breathing Pump oil is taken, then borrows gas and the pressure of oil to push exhaust valve exhaust open, to obtain vacuum.The gas being discharged from the pump housing contains A large amount of mist of oil pollutes the environment in workshop, also results in pump oil if the air containing mist of oil, which is expelled directly out, will form smoke event Too fast loss.

General solution is that a gs-oil separator is arranged in vacuum pump side, is provided with exhaust in gs-oil separator The entrance of filter core, exhaust filter core is connected to the side of fuel tank upper end, the air pressure of fuel tank with oil laden air continuous discharge gradually Become larger, under the influence of air pressure, oil laden air enters exhaust filter core filtering, and oil therein is by filter core absorptive collection, clean gas It is collected in gs-oil separator after body discharge filter core, passes through the row being arranged on exhaust outlet of the gs-oil separator far from fuel tank side Tracheae discharge, then flows back into fuel tank again from the pump oil of filter element filtering.

Be circumscribed with an exhaust pipe in the exhaust outlet of gs-oil separator, filtered air from exhaust pipe drain into it is outdoor or It collects in gas collection vessel, and device is intensive in practical work process, in workshop, placement space is limited, and various pipes Road and route are intensive, and the exhaust outlet on gs-oil separator is generally only arranged one, and set-up mode is excessively single, external exhaust pipe It can only connect on the exhaust outlet of gs-oil separator, once exhaust pipe other end position change, influences in order to avoid exhaust pipe folds Gas transmission needs to adjust the position of vacuum pump, this needs to reserve more reserved space to vacuum pump, increases the occupancy of vacuum pump Area, and move that vacuum pump is time-consuming and laborious, it is unable to satisfy the flexible job requirements in workshop.

Utility model content

The purpose of the utility model is to provide the vacuum pumps that a kind of exhaust mode flexibly has auxiliary exhaust mechanism, avoid The position of vacuum pump is adjusted after external exhaust pipe change in location.

To achieve the above object, it is realized by following technological means: a kind of vacuum pump with auxiliary exhaust mechanism, including Fuel tank, the pump housing being arranged in fuel tank and the gs-oil separator that fuel tank side is arranged in, the pump housing include being arranged at the top of it First row port, the gs-oil separator includes shell and the exhaust filter core that is immobilized in the shell, is provided with second on shell Exhaust outlet, the fuel tank are provided with the mistake docked with the entrance of exhaust filter core close to the side of shell above first row port Mouthful, the auxiliary exhaust mechanism being connected to enclosure interior is provided on fuel tank, the auxiliary exhaust mechanism includes from inner wall of oil tank The training wall for inwardly swelling and being formed between inner wall of oil tank discharge chamber, is provided in the outer wall of fuel tank and is connected to discharge chamber Third exhaust outlet.

Through the above technical solutions, being only provided with an exhaust for air after exhaust filtering on existing vacuum pump Mouthful, after vacuum pump installation, needs to adjust the position of vacuum pump once changing external gas exhaust piping, be inconvenient, this programme Auxiliary exhaust mechanism is added on fuel tank, the row being connected to shell which forms between fuel tank and training wall Air cavity, and the second exhaust port that is arranged on shell and the third exhaust outlet of fuel tank outer wall setting can be by filtered air Vacuum pump is discharged, increases the alternative link position of externally connected exhaust pipe, reduces the tune after pipeline changes to vacuum pump position Whole probability is time saving and energy saving；The auxiliary exhaust mechanism added not will increase the overall volume and area occupied of vacuum pump；In addition, existing Some exhaust filter cores can not oil in 100% entrapped air, the setting of discharge chamber extends air-flow to be evacuated and goes out outside vacuum pump Circulate route, can further oil-gas separation efficiency to be dropped a hint is arranged in remaining oil, raising in air after sedimentation filtration, the tool There is the vacuum pump discharges mode of auxiliary exhaust mechanism flexible, effectively reduces because the change of gas exhaust piping position adjusts vacuum pump position Probability, while the oil-gas separation efficiency of air can be further increased.

It advanced optimizes are as follows: when training wall is inwardly swelled from the top surface of fuel tank is formed with the discharge chamber, the third Exhaust outlet is set to the top surface of fuel tank；When from the top surface, bottom surface and two sides of fuel tank, inwardly protuberance is formed with mutually training wall simultaneously When the discharge chamber of connection, the third exhaust outlet is set to the top surface and/or bottom surface and/or two sides of fuel tank.

Through the above technical solution: the setting position of third exhaust outlet determines the exhaust position of filtered air, according to row The third exhaust outlet being connected to discharge chamber is arranged in the size of air cavity at least one face of fuel tank, according to setting for external exhaust gas pipeline The demand of setting chooses suitable third exhaust outlet, only need to block second exhaust port and other extra third exhaust outlets can be by shell Vacuum pump is discharged from the third exhaust outlet chosen in interior filtered air.

It advanced optimizes are as follows: the four corners of the top surface of fuel tank, bottom surface and two sides are provided with the third exhaust outlet.

Through the above technical solutions, add at 12 can externally connected exhaust pipe third exhaust outlet, user can be according to need It asks the arbitrary third exhaust outlet of selection to be exhausted, further increases the selectivity of exhaust position, greatly improve applicability, The probability that vacuum pump position adjusts caused by reducing because of externally connected exhaust pipe change in location.

It advanced optimizes are as follows: the side of the fuel tank is provided with the motor of the driving pump housing, and the gs-oil separator is set to The upper surface and fuel tank upper surface of the upper surface of motor and gs-oil separator maintain an equal level.

Through the above technical solutions, compact overall structure, area occupied are small after fuel tank, motor and gs-oil separator installation.

It advanced optimizes are as follows: the relief hole of exposed portion exhaust filter core entrance is provided with close to the side of fuel tank in shell, The exhaust filter core is pressed on shell on the inner wall of fuel tank side in horizontally disposed and exhaust filter core entrance.

Through the above technical solutions, the entrance of exhaust filter core is greater than relief hole and abuts setting with relief hole, in fuel tank Oil laden air can only enter in exhaust filter core through relief hole, and oil laden air is avoided to enter directly into shell without exhaust filter core It is discharged to outside the pump housing from second exhaust port or third exhaust outlet.

It advanced optimizes are as follows: the shell is provided with first close to the side of fuel tank above relief hole and crosses port, row It is provided with second docked with the first mistake port on air cavity and crosses port.

Through the above technical solutions, the intracorporal air of shell can be successively through first row port and second after exhaust filter core filters Exhaust outlet enters inside discharge chamber, and as third exhaust outlet discharge vacuum pump is surplus from outside, while in filtered air Remaining oil can be settled when flowing out of shell to discharge chamber with further progress, further increase the Oil-gas Separation effect of gas to be evacuated Rate.

It advanced optimizes are as follows: the training wall is in be wholely set with the fuel tank.

Through the above technical solutions, training wall and fuel tank, which are wholely set, may insure air-tightness inside discharge chamber.

It advanced optimizes are as follows: sealing second exhaust port and third exhaust are provided in second exhaust port and third exhaust outlet The sealing element of mouth.

Through the above technical solutions, according to the installation site of externally connected exhaust pipe can choose any one second exhaust port or Third exhaust outlet, and in order to avoid filtered air is directly discharged from other exhaust outlets, in its of not set externally connected exhaust pipe Setting sealing element is sealed very necessary on his exhaust outlet.

It advanced optimizes are as follows: the shell is convexly equipped with centered on relief hole for exhaust filter core close to the side inner wall of fuel tank The limiting section of insertion is fixed with one in shell and supports after exhaust filter core is inserted into limiting section by what exhaust filter core was compressed to limiting section Pressing plate.

Through the above technical solutions, limiting section combine compress plate can be after compressing plate and resisting exhaust filter core by exhaust filter core Limit, so that the entrance of exhaust filter core be enable to be tightly attached on relief hole, enables oil laden air to fully enter on limiting section Into exhaust filter core.

It advanced optimizes are as follows: the two sides of shell and/or its top surface and/or its one end far from fuel tank are provided with described Two exhaust outlets.

Through the above technical solutions, traditional gs-oil separator is only provided with a second exhaust port, shell two sides, Top surface and one end of separate fuel tank are respectively provided with second exhaust port and can increase the available property of filtered air drain position, Meet the unobstructed of external exhaust pipe exhaust while not adjusting vacuum pump position.

The utility model compared with prior art the advantages of be: 1, add auxiliary exhaust mechanism on fuel tank, increase The alternative link position of externally connected exhaust pipe reduces the adjustment probability after pipeline changes to vacuum pump position, time saving and energy saving；2, The discharge chamber being connected to shell that the auxiliary exhaust mechanism is formed between inner wall of oil tank and training wall, in the setting of fuel tank outer wall Can vacuum pump be discharged in filtered air by third exhaust outlet, and the auxiliary exhaust mechanism added can increase externally connected exhaust pipe Installation site and the overall volume and area occupied that not will increase vacuum pump；3, the setting of discharge chamber extends air-flow to be evacuated and goes out Circulation route outside vacuum pump, can further oil gas to be dropped a hint point be arranged in remaining oil, raising in air after sedimentation filtration From efficiency.

Detailed description of the invention

Fig. 1-3 is a kind of broken away view of the vacuum pump with auxiliary exhaust mechanism in the present embodiment；

Fig. 4 is a kind of top view of the vacuum pump with auxiliary exhaust mechanism in the present embodiment；

Fig. 5 is the A-A cross-sectional view of Fig. 4；

In figure, 1, fuel tank；11, mouth is crossed；12, discharge chamber；13, training wall；14, second port is crossed；15, third exhaust outlet； 2, the pump housing；21, exhaust tube；22, first row port；3, gs-oil separator；31, shell；32, exhaust filter core；33, relief hole；34, First crosses port；35, plate is compressed；36, mounting blocks；37, second exhaust port；38, sealing plate；4, motor；5, limiting section；6, the first method It is blue.

Specific embodiment

It is described in further detail with reference to the accompanying drawing and by specific embodiment to utility model, following embodiment only describes Property, it is not restrictive the protection scope of the utility model.

Embodiment

A kind of vacuum pump with auxiliary exhaust mechanism, with reference to shown in Fig. 1-Fig. 5, including fuel tank 1, setting are in fuel tank 1 The pump housing 2 and the gs-oil separator 3 of 1 side of fuel tank is set, 1 side of fuel tank is provided with the motor 4 of the driving pump housing 2, motor 4 Output shaft by the output axis connection of shaft coupling and 2 inner rotator of the pump housing, the top of motor 4 is arranged in gs-oil separator 3, pump The top two sides of body 2 are provided with the exhaust tube 21 and first row port 22 being connected to inside the pump housing 2, the height of first row port 22 Greater than the maximum fluid height of fuel tank 1.Upper surface and the oil of 4 upper surface of motor and gs-oil separator 3 is arranged in gs-oil separator 3 The upper surface of case 1 maintains an equal level.

The exhaust filter core 32 gs-oil separator 3 shell 31 including inner hollow and be fixed in shell 31, exhaust filter core 32 use existing product, and it is graceful Hu Moer, the vacuum pump exhaust filter core 32 of model 4900152171 that brand, which may be selected,.Shell Body 31 is clenched solid or is welded and fixed with fuel tank 1 close to one end of fuel tank 1 by fastening, and shell 31 is set far from one end of fuel tank 1 One is equipped with for replacing the capping of exhaust filter core 32, is fixed between capping and shell 31 by fastening screw, and capping and shell The air-tightness being provided between 31 inside sealing ring guarantee shell 31.

With reference to shown in Fig. 2, Fig. 3 and Fig. 5, the side of fuel tank 1 is provided with exposed portion exhaust filter core 32 in shell 31 The relief hole 33 of entrance, shell 31 are provided with a sealing plate 37 far from the side of fuel tank 1, and sealing plate 37 is fastened on shell 31 by screw On, sealing ring, which is provided with, between sealing plate 37 and shell 31 is sealed.Exhaust filter core 32 has at least one in horizontal spacing setting, And the entrance of exhaust filter core 32 is pressed on shell 31 on the inner wall of 1 side of fuel tank, in shell 31 in the side of fuel tank 1 Wall is convexly equipped with the limiting section 5 being inserted into for exhaust filter core 32 centered on relief hole 33, and the limiting section 5 is for limit sleeve or around resigning The limited block of the circumferentially-spaced projection in the center in hole 33 is inwardly convexly equipped with mounting blocks 36 in the two sides of shell 31, leads on mounting blocks 36 It crosses fastening screw and is fixed with one and exhaust filter core 32 compressed into plate to what limiting section 5 compressed after exhaust filter core 32 is inserted into limiting section 5 35；It is provided on shell 31 and/or sealing plate 37 by the second exhaust port 37 of filtered air discharge vacuum pump.

Be provided with above first row port 22 docked with relief hole 33 cross mouth 11, be provided on fuel tank 1 and shell 31 inside be connected to auxiliary exhaust mechanism, the auxiliary exhaust mechanism include the training wall 13 swelled downwards from the top surface of fuel tank 1 and The discharge chamber 12 formed between 1 inner wall of training wall 13 and fuel tank, for the training wall 13 with fuel tank 1 in being wholely set, shell 31 is close The side of fuel tank 1 is provided with first in the top of relief hole 33 and crosses port 34, is provided on discharge chamber 12 and crosses port 34 with first The second of docking crosses port 14, the third exhaust outlet 15 connecting with discharge chamber 12 is provided at the top of shell 31, in second row It is provided with sealing element on port 37 and third exhaust outlet 15, which is to be weldingly fixed on second exhaust port 37 or third First flange 6 on exhaust outlet 15, and it is matched with first flange 6 for sealing the second flange of first flange 6, the first method It is provided with flange gasket between orchid 6 and second flange, second flange is tightened to first flange 6 by extruding flange by fastening bolt It is sealed after gasket.

In addition, discharge chamber 12 is not limited to be positioned only at the top surface of fuel tank 1, top surface, the bottom that training wall 13 can simultaneously from fuel tank 1 Face and two sides are inwardly swelled when forming interconnected discharge chamber 12, third exhaust outlet 15 may be provided at fuel tank 1 top surface and/or Bottom surface and/or two sides, the preferably four corners in the top surface of fuel tank 1, bottom surface and two sides are respectively provided with third exhaust outlet 15；Similarly, Two exhaust outlets 37 may be provided at the two sides and/or its top surface and/or its one end far from fuel tank 1 of shell 31.

After the oil laden air in the pump housing 2 is discharged from first row port 22, most of oil collision in air is close to oil It is fallen after rise to lower from 1 bottom surface of fuel tank behind 13 bottom surface of training wall at 1 top of case, oil laden air flows through shell 31 from the mouth 11 of crossing of fuel tank 1 Relief hole 33 after enter in exhaust filter core 32 and be filtered, connected at this time according to the setting of externally connected exhaust pipe needs In any one second exhaust port 37 or third exhaust outlet 15, by other exhaust outlet flange seals, if externally connected exhaust pipe connects In second exhaust port 37, vacuum pump directly is discharged from second exhaust port 37 through the filtered air of exhaust filter core 32；If external Exhaust pipe connects on third exhaust outlet 15, flowed through inside shell 31 through the filtered air of exhaust filter core 32, after discharge chamber 12 from Vacuum pump is discharged in third exhaust outlet 15.

The utility model has the beneficial effects that 1, auxiliary exhaust mechanism is added on fuel tank 1, increase externally connected exhaust pipe for The link position of selection reduces the adjustment probability after pipeline changes to vacuum pump position, time saving and energy saving；2, the auxiliary exhaust mechanism The discharge chamber 12 being connected to shell 31 formed between 1 inner wall of fuel tank and training wall 13, in the third row of 1 outer wall of fuel tank setting Can vacuum pump be discharged in filtered air by port 15, and the auxiliary exhaust mechanism added can increase the installation of externally connected exhaust pipe The overall volume and area occupied of vacuum pump are not will increase while position；3, the setting of discharge chamber 12 extends air-flow to be evacuated Circulation route outside vacuum pump out, can further oil gas to be dropped a hint be arranged in remaining oil, raising in air after sedimentation filtration Separative efficiency.

The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (10)

1. a kind of vacuum pump with auxiliary exhaust mechanism, including fuel tank (1), the pump housing (2) being arranged in fuel tank (1) and setting Gs-oil separator (3) in fuel tank (1) side, which is characterized in that the pump housing (2) includes the first exhaust being arranged at the top of it Mouth (22), the gs-oil separator (3) includes shell (31) and the exhaust filter core (32) being fixed in shell (31), shell (31) On be provided with second exhaust port (37), the fuel tank (1) is arranged above the first row port (22) close to the side of shell (31) Have docked with the entrance of exhaust filter core (32) cross mouth (11), be provided on fuel tank (1) with shell (31) inside be connected to it is auxiliary Exhaust-assisting mechanism, the auxiliary exhaust mechanism include inwardly swelling from fuel tank (1) inner wall and being formed between fuel tank (1) inner wall The training wall (13) of discharge chamber (12) is provided with the third exhaust outlet (15) for being connected to discharge chamber (12) in the outer wall of fuel tank (1).

2. a kind of vacuum pump with auxiliary exhaust mechanism according to claim 1, which is characterized in that when training wall (13) It is inwardly swelled from the top surface of fuel tank (1) when being formed with the discharge chamber (12), the third exhaust outlet (15) is set to fuel tank (1) Top surface；When from the top surface, bottom surface and two sides of fuel tank (1), inwardly protuberance is formed with interconnected exhaust to training wall (13) simultaneously When chamber (12), the third exhaust outlet (15) is set to the top surface and/or bottom surface and/or two sides of fuel tank (1).

3. a kind of vacuum pump with auxiliary exhaust mechanism according to claim 2, which is characterized in that the top of fuel tank (1) The four corners in face, bottom surface and two sides are provided with the third exhaust outlet (15).

4. a kind of vacuum pump with auxiliary exhaust mechanism according to claim 3, which is characterized in that the fuel tank (1) Side be provided with the motor (4) of the driving pump housing (2), the gs-oil separator (3) is set to upper surface and the oil gas of motor (4) The upper surface and fuel tank (1) upper surface of separator (3) maintain an equal level.

5. a kind of vacuum pump with auxiliary exhaust mechanism according to claim 1 to 3, which is characterized in that Shell (31) is provided with the relief hole (33) of exposed portion exhaust filter core (32) entrance, the exhaust close to the side of fuel tank (1) Filter core (32) is pressed on shell (31) on the inner wall of fuel tank (1) side in horizontally disposed and exhaust filter core (32) entrance.

6. a kind of vacuum pump with auxiliary exhaust mechanism according to claim 5, which is characterized in that the shell (31) Be provided with first above relief hole (33) close to the side of fuel tank (1) and cross port (34), be provided on discharge chamber (12) with First, which crosses port (34) are docked second, crosses port (14).

7. a kind of vacuum pump with auxiliary exhaust mechanism according to claim 1, which is characterized in that the training wall It (13) is in be wholely set with the fuel tank (1).

8. a kind of vacuum pump with auxiliary exhaust mechanism according to claim 1, which is characterized in that second exhaust port (37) and on third exhaust outlet (15) it is provided with the sealing element of sealing second exhaust port (37) and third exhaust outlet (15).

9. a kind of vacuum pump with auxiliary exhaust mechanism according to claim 5, which is characterized in that the shell (31) Side inner wall close to fuel tank (1) is convexly equipped with the limiting section (5) for exhaust filter core (32) insertion centered on relief hole (33), One is fixed in shell (31) to compress exhaust filter core (32) to limiting section (5) after exhaust filter core (32) are inserted into limiting section (5) Compress plate (35).

10. a kind of vacuum pump with auxiliary exhaust mechanism according to claim 4, which is characterized in that in shell (31) Two sides and/or its top surface and/or its one end far from fuel tank (1) be provided with the second exhaust port (37).