CN220850911U

CN220850911U - Automatic drainage device of vacuum pump buffer tank

Info

Publication number: CN220850911U
Application number: CN202322248229.4U
Authority: CN
Inventors: 乔国梁
Original assignee: Yunpeng Pharmaceutical Group Co ltd
Current assignee: Yunpeng Pharmaceutical Group Co ltd
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-04-26
Anticipated expiration: 2033-08-21

Abstract

The utility model discloses an automatic drainage device for buffer tanks of a vacuum pump, which particularly relates to the technical field of drainage, and comprises two buffer tanks which are sequentially and equidistantly arranged from left to right, wherein a liquid level sensor is fixedly connected inside each buffer tank, a vacuum suction pipe is communicated with the top end of each buffer tank and located at the position of the center point of the buffer tank in a penetrating way, and a floating sealing assembly is arranged on the outer wall of the vacuum suction pipe and near the bottom end of the vacuum suction pipe. According to the utility model, the floating sealing assembly is arranged, when the liquid level sensor is damaged, the buffer liquid level position in the buffer tank is rapidly raised, the upper surface convex ring of the rubber sealing convex ring pad is inserted into the sealing guide groove in the sealing iron ring, the sealing iron ring is subjected to sealing action on the vacuum suction pipe by the magnetic attraction of the sealing magnet, and too much buffer liquid cannot enter the vacuum suction pipe, so that the vacuum pump is damaged.

Description

Automatic drainage device of vacuum pump buffer tank

Technical Field

The utility model relates to the technical field of drainage, in particular to an automatic drainage device of a buffer tank of a vacuum pump.

Background

The buffer tank of the existing vacuum pump can buffer liquid in the use process, when the buffer tank liquid exceeds the upper limit in the production process, the fact that the vacuum degree cannot be achieved due to the fact that the buffer tank liquid exceeds the upper limit is not found in time, and the liquid is directly sucked into the Roots pump, so that equipment is damaged.

According to the utility model, the utility model patent of Chinese patent publication No. CN203663798U discloses a vacuum automatic liquid discharge device, aiming at the prior art, when the negative pressure in a conventional vacuum liquid discharge tank reaches minus 0.08MPa, a high-power water pump is required to be arranged below the vacuum tank in order to discharge water in the tank, so that the water is continuously pumped out, the power consumption is very high, and equipment is very easy to damage and difficult to maintain; by eliminating the traditional high-power drainage pump and selectively draining, automatic drainage is realized, the working efficiency is improved, meanwhile, the cost is reduced, and the maintenance are simple and convenient; however, this device has the following drawbacks;

When the device is used for draining liquid from the vacuum pump buffer tank, the liquid level sensor is needed through the liquid level meter, after the liquid level sensor is at a specified height, the valve is opened to drain liquid, once the liquid level meter is damaged, the liquid in the whole buffer tank can rise to the position of the vacuum pump, and then the liquid can be filled into the vacuum pump, so that the whole vacuum pump pipeline is liquid, equipment is easy to damage, and the automatic draining device of the vacuum pump buffer tank is needed.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model provides an automatic drainage device of a buffer tank of a vacuum pump.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the automatic drainage device for the buffer tanks of the vacuum pump comprises two buffer tanks which are sequentially and equidistantly arranged from left to right, wherein a liquid level sensor is fixedly connected to the inside of each buffer tank, a vacuum suction pipe is communicated with the top end of each buffer tank in a penetrating manner at the position of the center point of the top end of each buffer tank, and a floating sealing assembly is arranged on the outer wall of each vacuum suction pipe and close to the bottom end of each vacuum suction pipe;

The floating seal assembly comprises a sealing iron ring which is arranged on the outer wall of the vacuum suction pipe and is close to the bottom end position of the vacuum suction pipe, a sealing guide groove with a circular cross section is embedded and formed in the bottom end of the sealing iron ring, a rubber sealing convex ring pad is arranged below the sealing guide groove, a sealing magnet and a sleeved buoyancy block are sequentially arranged below the rubber sealing convex ring pad from top to bottom, a guide strut fixedly connected with a buffer tank is arranged on the inner wall of the sleeved buoyancy block, and an expansion floating assembly is arranged on the outer wall of the sleeved buoyancy block.

Preferably, the sealing iron ring is fixedly connected with the vacuum suction pipe, the cross-sectional area of the top end of the sealing guide groove is smaller than the cross-sectional area of the bottom end of the sealing guide groove, the sealing magnet is fixedly connected with the rubber sealing convex ring pad and the sleeved buoyancy block respectively, the rubber sealing convex ring pad is vertically inserted between the sealing iron ring to which the sealing guide groove belongs, the outer wall of the guide support column is slidably connected with the guide sliding ring at the position below the sleeved buoyancy block, and the guide sliding ring is fixedly adhered to the sleeved buoyancy block through hot melt adhesive.

Preferably, the bottom of every the buffer tank is all screw thread intercommunication and electronic flowing back valve, and the top fixed intercommunication of vacuum suction pipe has the drawing liquid electric valve, and the top fixed intercommunication at drawing liquid electric valve has the connecting pipe, the vacuum pump of screw thread intercommunication is installed to the bottom of connecting pipe, the top of buffer tank just is located the outside one side position department fixed intercommunication of drawing liquid electric valve and has the feed liquor electric valve.

Through adopting above-mentioned technical scheme, connect buffer to the interface on the feed liquor electric valve, open drainage electric valve and feed liquor electric valve, the inside vacuum negative pressure that produces of start vacuum pump messenger two buffer tanks, outside buffer enters into the inside storage of buffer tank along feed liquor electric valve, and according to the liquid level numerical value that liquid level sensor set for, when the liquid level risees the liquid level numerical value that liquid level sensor sensed, can open electronic drain valve automatically, electronic drain valve will buffer tank inside buffer down go out, when the sensor numerical value that liquid level sensor set for down, can close electronic drain valve, damage when liquid level sensor, buffer tank inside buffer liquid level rises rapidly, the buoyancy of buffer can drive the sleeve buoyancy piece and upwards move along the outer wall guide of guide post, the sleeve buoyancy piece drives the guide sliding ring and upwards moves along the outer wall guide of guide post simultaneously, sleeve buoyancy piece drives the seal magnet and makes the seal convex ring pad upwards move, the upper surface convex ring of rubber seal convex ring pad inserts in the seal groove of seal iron ring inside, and when seal convex ring pad and seal iron ring contact with seal iron ring, the whole suction effect to the seal iron ring, inhale the sealed suction to the sealed pipe.

Preferably, the expansion floating assembly comprises two buoyancy expansion support plates arranged on the outer wall of the sleeved buoyancy block, the bottom end of each buoyancy expansion support plate is fixedly adhered with a buoyancy lifting plate, one end of each buoyancy expansion support plate is fixedly connected with a connecting support block, the buoyancy prop is installed on the top of connecting prop, connect the bottom of prop and be close to its dot position department and install grafting buoyancy post, it is fixed all to bond between connection prop with grafting buoyancy post and buoyancy prop, grafting buoyancy post bottom cross section area is less than its top cross section area.

Through adopting above-mentioned technical scheme, cup joint buoyancy piece and shift up under the buoyancy effect of buffer, peg graft buoyancy post insert the buffer in increase connect the stability that props up the piece, and buoyancy lift plate and buoyancy extension plate and connect props up the buoyancy that the piece increases cup joint buoyancy piece, ensure cup joint buoyancy piece and shift up along the outer wall guide of direction pillar, increase buoyancy.

The utility model has the technical effects and advantages that:

1. Through setting up the floating seal assembly, when the liquid level sensor damages, the buffer level position in the buffer tank rises rapidly, the buoyancy of buffer liquid can drive the socketed buoyancy block to move upwards along the outer wall guide of the guide pillar, the upper surface convex ring of the rubber sealing convex ring pad is inserted into the sealing guide groove in the sealing iron ring, when the rubber sealing convex ring pad contacts with the sealing iron ring, the vacuum suction pipe is sealed by the magnetic attraction of the sealing magnet to the sealing iron ring, even if the liquid level sensor damages, too much buffer liquid can not cause the buffer liquid to enter the vacuum suction pipe, and the vacuum pump damages;

2. The sleeved buoyancy block moves upwards under the buoyancy action of the buffer solution, the stability of the connection support block floating upwards is increased by inserting the inserted buoyancy column into the buffer solution, the buoyancy lifting plate, the buoyancy expansion support plate and the connection support block increase the lifting buoyancy of the sleeved buoyancy block, and the sleeved buoyancy block is ensured to stably move upwards.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an automatic draining device for a buffer tank of a vacuum pump.

Fig. 2 is a schematic vertical sectional view of an automatic drainage device for a buffer tank of a vacuum pump.

Fig. 3 is a schematic view showing a vertical section of a buffer tank in a buffer tank automatic drainage device of a vacuum pump according to the present utility model.

Fig. 4 is a schematic diagram of a local structure of a connection between a buoyancy expansion support plate and a buoyancy lift plate in an automatic drainage device for a buffer tank of a vacuum pump according to the present utility model.

The reference numerals are: 1. a buffer tank; 2. a liquid level sensor; 3. a vacuum suction pipe; 4. sealing an iron ring; 5. sealing the guide groove; 6. rubber sealing convex ring pad; 7. a seal magnet; 8. sleeving a buoyancy block; 9. a guide post; 10. a guide sliding ring; 11. an electric liquid discharge valve; 12. a buoyancy support block; 13. a liquid-pumping electric valve; 14. a liquid inlet electric valve; 15. a connecting pipe; 16. a vacuum pump; 17. buoyancy expansion support plates; 18. a buoyancy lift plate; 19. connecting the support blocks; 20. and (5) inserting buoyancy columns.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

1-4, A vacuum pump buffer tank automatic drainage device is provided with floating seal assembly on this vacuum pump buffer tank automatic drainage device, and even if level sensor damages the setting of floating seal assembly, too much buffer also can not cause the buffer to enter into the vacuum suction pipe inside, causes the vacuum pump to damage, and specific structure sets up as follows:

In some embodiments, as shown in fig. 1-3, the floating seal assembly comprises a sealing iron ring 4 installed on the outer wall of a vacuum suction pipe 3 and close to the bottom end position of the vacuum suction pipe, a sealing guide groove 5 with a circular cross section is embedded and arranged at the bottom end of the sealing iron ring 4, a rubber sealing convex ring pad 6 is installed below the sealing guide groove 5, a sealing magnet 7 and a sleeved buoyancy block 8 are sequentially arranged below the rubber sealing convex ring pad 6 from top to bottom, a guide strut 9 fixedly connected with a buffer tank 1 is arranged on the inner wall of the sleeved buoyancy block 8, an expanding floating assembly is arranged on the outer wall of the sleeved buoyancy block 8, the sealing iron ring 4 is fixedly connected with the vacuum suction pipe 3, the cross section area of the top end of the sealing guide groove 5 is smaller than the cross section area of the bottom end of the sealing iron ring, the sealing magnet 7 is fixedly connected with the rubber sealing convex ring pad 6 and the sleeved buoyancy block 8, and the sealing iron ring 4 to which the sealing guide groove 5 belongs are vertically spliced;

The use principle of the automatic draining device of the buffer tank of the vacuum pump of the embodiment is as follows;

When the buffer liquid is automatically drained, a buffer liquid butt joint port is connected to a liquid inlet electric valve 14 in a negative pressure vacuum way, the liquid suction electric valve 13 and the liquid inlet electric valve 14 are opened, a vacuum pump 16 is started to enable the inside of the two buffer tanks 1 to generate vacuum negative pressure, external buffer liquid enters the buffer tanks 1 along the liquid inlet electric valve 14 to be stored, according to the liquid level value set by the liquid level sensor 2, when the liquid level rises to the liquid level value sensed by the liquid level sensor 2, the electric liquid discharge valve 11 can be automatically opened, the electric liquid discharge valve 11 discharges buffer liquid in the buffer tanks 1 downwards, and when the buffer liquid is discharged downwards to the sensing value set by the liquid level sensor 2, the electric liquid discharge valve 11 can be closed, so that an automatic water discharge effect can be achieved on the buffer tanks 1;

When sealed protection, when the liquid level sensor 2 is damaged, the buffer tank 1 inside buffer liquid position rises rapidly, the buoyancy of buffer liquid can drive the sleeve buoyancy block 8 to move upwards along the outer wall guide of the guide strut 9, simultaneously the sleeve buoyancy block 8 drives the guide sliding ring 10 to move upwards along the outer wall guide of the guide strut 9, the sleeve buoyancy block 8 drives the seal magnet 7 to enable the rubber seal convex ring pad 6 to move upwards, the upper surface convex ring of the rubber seal convex ring pad 6 is inserted into the seal guide groove 5 inside the seal iron ring 4, and when the rubber seal convex ring pad 6 contacts with the seal iron ring 4, the seal magnet 7 drives the rubber seal convex ring pad 6 to be firmly extruded at the position below the seal iron ring 4, and the whole vacuum suction pipe 3 is sealed.

In some embodiments, as shown in fig. 1-3, the outer wall of the guide pillar 9 is slidably connected with a guide sliding ring 10 at a position below the sleeved buoyancy block 8, the guide sliding ring 10 is fixed with the sleeved buoyancy block 8 through hot melt adhesive, so that the sleeved buoyancy block 8 drives the guide sliding ring 10 to move upwards along the outer wall of the guide pillar 9, the sleeved buoyancy block 8 is ensured to stably move upwards, the bottom end of each buffer tank 1 is in threaded communication with an electric liquid draining valve 11, the top end of the vacuum suction pipe 3 is fixedly communicated with a liquid draining electric valve 13, the top end of the liquid draining electric valve 13 is fixedly communicated with a connecting pipe 15, the bottom end of the connecting pipe 15 is provided with a threaded communicated vacuum pump 16, the top end of the buffer tank 1 is fixedly communicated with a liquid inlet electric valve 14 at a position outside the liquid draining electric valve 13, so that a buffer butt joint is connected to the liquid inlet electric valve 14, the liquid draining electric valve 13 and the liquid inlet electric valve 14 are opened, the vacuum pump 16 is started to enable the interiors of the two buffer tanks 1 to generate vacuum negative pressure, external buffer liquid enters the liquid inlet electric valve 14 and enters the buffer tank 1, and the liquid level sensor 2 automatically senses the liquid level to be automatically and the liquid level to be discharged to the liquid level when the liquid level sensor 11 is automatically and the liquid level sensor is set up, and the liquid level sensor is automatically sensed to be discharged to the liquid level sensor 11.

The model number of the liquid level sensor 2 is SMXK-04 type liquid level sensor.

In some embodiments, as shown in fig. 3-4, the expansion floating assembly comprises two buoyancy expansion support plates 17 arranged on the outer wall of the sleeved buoyancy block 8, wherein a buoyancy lifting plate 18 is fixedly adhered to the bottom end of each buoyancy expansion support plate 17, a connecting support block 19 is fixedly connected to one end part of each buoyancy expansion support plate 17, a buoyancy support block 12 is arranged at the top end of each connecting support block 19, a plugging buoyancy column 20 is arranged at the bottom end of each connecting support block 19 and near the position of a round point of each connecting support block, and the plugging buoyancy column 20 and the buoyancy support block 12 are fixedly adhered to the connecting support block 19, and the cross-sectional area of the bottom end of each plugging buoyancy column 20 is smaller than that of the top end of each connecting support block;

According to the upper structure, when the sleeved buoyancy block 8 moves upwards under the buoyancy action of the buffer solution, the plug buoyancy column 20 is inserted into the buffer solution to increase the floating stability of the connecting support block 19, the buoyancy lifting plate 18, the buoyancy expansion support plate 17 and the connecting support block 19 increase the floating buoyancy of the sleeved buoyancy block 8, and meanwhile the plug buoyancy column 20 can also increase the floating buoyancy of the sleeved buoyancy block 8, so that the sleeved buoyancy block 8 moves upwards along the outer wall guide of the guide support column 9, and the floating buoyancy of the sleeved buoyancy block 8 is increased.

The details not described in detail in the specification belong to the prior art known to those skilled in the art, and model parameters of each electric appliance are not specifically limited and can be determined by using conventional equipment.

Finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides an automatic drainage device of vacuum pump buffer tank, includes from left to right two buffer tanks (1) of equidistance arrangement in proper order, the inside of every buffer tank (1) is equal fixedly connected with level sensor (2), the top of buffer tank (1) just is located its centre of a circle point position department and runs through the intercommunication and have vacuum suction pipe (3), its characterized in that: a floating sealing component is arranged on the outer wall of the vacuum suction pipe (3) and near the bottom end of the vacuum suction pipe;

The floating seal assembly comprises a sealing iron ring (4) which is arranged on the outer wall of a vacuum suction pipe (3) and is close to the bottom end position of the vacuum suction pipe, a cross section of the sealing iron ring (4) is embedded and provided with a sealing guide groove (5) which is circular in shape, a rubber sealing convex ring pad (6) is arranged below the sealing guide groove (5), a sealing magnet (7) and a sleeved buoyancy block (8) are sequentially arranged below the rubber sealing convex ring pad (6) from top to bottom, a guide strut (9) fixedly connected with a buffer tank (1) is arranged on the inner wall of the sleeved buoyancy block (8), and an expansion floating assembly is arranged on the outer wall of the sleeved buoyancy block (8).

2. The automatic draining device for a buffer tank of a vacuum pump according to claim 1, wherein: the sealing iron ring (4) is fixedly connected with the vacuum suction pipe (3), and the cross-sectional area of the top end of the sealing guide groove (5) is smaller than that of the bottom end of the sealing guide groove.

3. The automatic draining device for a buffer tank of a vacuum pump according to claim 1, wherein: the sealing magnet (7) is fixedly connected with the rubber sealing convex ring pad (6) and the sleeved buoyancy block (8) respectively, and the rubber sealing convex ring pad (6) is vertically inserted between the sealing iron ring (4) to which the sealing guide groove (5) belongs.

4. The automatic draining device for a buffer tank of a vacuum pump according to claim 1, wherein: the outer wall of the guide pillar (9) is slidably connected with a guide sliding ring (10) at the position below the sleeved buoyancy block (8), and the guide sliding ring (10) is fixed with the sleeved buoyancy block (8) through hot melt adhesive.

5. The automatic draining device for a buffer tank of a vacuum pump according to claim 1, wherein: every the equal screw thread intercommunication of bottom of surge tank (1) is with electronic flowing back valve (11), and the top fixed intercommunication of vacuum suction pipe (3) has drawing liquid electric valve (13), and the top fixed intercommunication at drawing liquid electric valve (13) has connecting pipe (15), vacuum pump (16) of screw thread intercommunication are installed to the bottom of connecting pipe (15), the top of surge tank (1) just is located the outside one side position department fixed intercommunication of drawing liquid electric valve (13) and has feed liquor electric valve (14).

6. The automatic draining device for a buffer tank of a vacuum pump according to claim 1, wherein: the extension floating assembly comprises two buoyancy extension support plates (17) arranged on the outer wall of the sleeved buoyancy block (8), a buoyancy lifting plate (18) is fixedly bonded to the bottom end of each buoyancy extension support plate (17), a connection support block (19) is fixedly connected to one end of each buoyancy extension support plate (17), a buoyancy support block (12) is arranged at the top end of the connection support block (19), and a plugging buoyancy column (20) is arranged at the bottom end of the connection support block (19) and near the round point position of the connection support block.

7. The automatic draining device for a buffer tank of a vacuum pump according to claim 6, wherein: the spliced buoyancy column (20) and the buoyancy support block (12) are fixedly bonded with the connecting support block (19), and the cross-sectional area of the bottom end of the spliced buoyancy column (20) is smaller than that of the top end of the spliced buoyancy column.