CN215444412U

CN215444412U - Chemical centrifugal pump with improved sealing structure

Info

Publication number: CN215444412U
Application number: CN202120466937.3U
Authority: CN
Inventors: 宋春元
Original assignee: Yancheng Institute of Industry Technology
Current assignee: Yancheng Institute of Industry Technology
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2022-01-07
Anticipated expiration: 2031-03-04

Abstract

The utility model discloses a chemical centrifugal pump with an improved sealing structure, which comprises a box body, wherein a water inlet pipe is inserted into the box body, the top of the water inlet pipe is communicated with a pump shell, the outer side wall of the water inlet pipe is fixedly connected with a first motor through a screw, an output shaft of the first motor penetrates through the water inlet pipe and is welded with a rotary table, the outer side of the rotary table is rotatably connected with a connecting arm, the bottom of the connecting arm is rotatably connected with a sliding rod, the outer side wall of the sliding rod is slidably connected with a baffle plate, the outer side of the baffle is welded with the water inlet pipe, the utility model arranges a turntable on the output shaft of the first motor, and a connecting arm is arranged between the rotary table and the sliding rod, so that after the first motor drives the rotary table to rotate, the connecting arm can drive the plugging block to move up and down through the sliding rod and the sealing gasket, thereby make chemical industry material when getting into the inlet tube, can receive the throttle, and then reduced the chemical industry material by the waste that the centrifugal pump caused when carrying.

Description

Chemical centrifugal pump with improved sealing structure

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a chemical centrifugal pump with an improved sealing structure.

Background

The existing centrifugal water pump is called centrifugal pump for short, also called centrifugal water pump. It is a water pumping machine using the centrifugal motion of water. Before the centrifugal pump is started, water is filled into the pump, the impeller which rotates after the centrifugal pump is started drives the water in the pump to rotate at a high speed, and the water is centrifugally moved, thrown outwards and pressed into the water outlet pipe. After the water is thrown out, the pressure near the impeller is reduced, and a low-pressure area is formed near the rotating shaft. The pressure is much lower than the atmospheric pressure, and the outside water can open the bottom valve and enter the pump from the water inlet pipe under the action of the atmospheric pressure. The water rushed in is thrown out again in high-speed rotation along with the impeller and is pressed into the water outlet pipe. The impeller is driven by the power machine to rotate at a high speed continuously, and water is continuously pumped from a low position to a high position.

When using the centrifugal pump in the chemical industry field, when chemical industry materials were in by the in-process of centrifugal pump transport, the seal structure that uses in the current centrifugal pump did not possess the effect of carrying out the throttle to chemical industry materials and carrying to caused the waste of chemical industry materials to a certain extent, for this reason, provided a chemical industry centrifugal pump who improves seal structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a chemical centrifugal pump with an improved sealing structure, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a chemical centrifugal pump with an improved sealing structure comprises a box body, wherein a water inlet pipe is inserted into the box body, the top of the water inlet pipe is communicated with a pump shell, the outer side wall of the water inlet pipe is fixedly connected with a first motor through screws, the output shaft of the first motor penetrates through the water inlet pipe and is welded with a rotary plate, the outer side of the rotary plate is rotatably connected with a connecting arm, the bottom of the connecting arm is rotatably connected with a slide bar, the outer side wall of the slide bar is slidably connected with a baffle, the outer side of the baffle is welded with the water inlet pipe, the bottom of the slide bar penetrates through the baffle and is fixedly connected with a sealing gasket, the inner side wall of the water inlet pipe is fixedly connected with a plate body, a through groove is formed in the plate body, a plugging block is inserted into the through groove, the top of the plugging block is fixedly connected with the sealing gasket, the outer side wall of the pump shell is fixedly connected with a second motor through screws, the output shaft of the second motor penetrates through the pump shell and is welded with the impeller, and the top of the pump shell is communicated with a water outlet pipe.

As further preferable in the present technical solution: the bottom intercommunication of inlet tube has into water and fights, the inside wall that intakes fights passes through screw fixedly connected with filter screen.

As further preferable in the present technical solution: the top of the water outlet pipe is communicated with a hose.

As further preferable in the present technical solution: the outer side wall of the pump shell is welded with a support frame, and the bottom of the support frame is fixedly connected with the box body through screws.

As further preferable in the present technical solution: the lateral wall of inlet tube just is located the outside fixedly connected with waterproof housing of first motor, the output shaft of first motor is equipped with first sealing washer, one side and the inlet tube fixed connection of first sealing washer.

As further preferable in the present technical solution: and an output shaft of the second motor is provided with a second sealing ring, and one side of the second sealing ring is fixedly connected with the pump shell.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the turntable is arranged on the output shaft of the first motor, and the connecting arm is arranged between the turntable and the sliding rod, so that after the first motor drives the turntable to rotate, the connecting arm can drive the plugging block to move up and down back and forth through the sliding rod and the sealing gasket, so that chemical materials can be throttled when entering the water inlet pipe, and further, the waste of the chemical materials when being conveyed by the centrifugal pump is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a second motor and impeller according to the present invention;

FIG. 3 is a schematic structural diagram of a first motor and a turntable according to the present invention;

fig. 4 is a schematic view of the inner structure of the water inlet pipe of the present invention.

In the figure: 1. a box body; 2. a water inlet pipe; 3. a pump housing; 4. a first motor; 5. a turntable; 6. a connecting arm; 7. a slide bar; 8. a baffle plate; 9. a gasket; 10. blocking; 11. a through groove; 12. a plate body; 13. a second motor; 14. a first seal ring; 15. an impeller; 16. a waterproof housing; 17. a water outlet pipe; 18. a hose; 19. a support frame; 20. a water inlet hopper; 21. a filter screen; 22. and a second seal ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a chemical centrifugal pump with an improved sealing structure comprises a box body 1, a water inlet pipe 2 is inserted into the box body 1, the top of the water inlet pipe 2 is communicated with a pump shell 3, the outer side wall of the water inlet pipe 2 is fixedly connected with a first motor 4 through a screw, an output shaft of the first motor 4 penetrates through the water inlet pipe 2 and is welded with a rotary disk 5, the outer side of the rotary disk 5 is rotatably connected with a connecting arm 6, the bottom of the connecting arm 6 is rotatably connected with a slide rod 7, the outer side wall of the slide rod 7 is slidably connected with a baffle 8, the outer side of the baffle 8 is welded with the water inlet pipe 2, the bottom of the slide rod 7 penetrates through the baffle 8 and is fixedly connected with a sealing gasket 9, the inner side wall of the water inlet pipe 2 is fixedly connected with a plate body 12, a through groove 11 is formed in the plate body 12, a blocking block 10 is inserted into the through groove 11, the top of the blocking block 10 is fixedly connected with the sealing gasket 9, the outer side wall of the pump shell 3 is fixedly connected with a second motor 13 through a screw, an output shaft of the second motor 13 penetrates through the pump shell 3 and is welded with an impeller 15, and the top of the pump shell 3 is communicated with a water outlet pipe 17; the baffle 8 is of a rectangular structure and is used for supporting and limiting the slide rod 7, so that the inside of the water inlet pipe 2 cannot be completely blocked; the sealing gasket 9 can act as a secondary seal against the block 10,

in this embodiment, specifically: the bottom of the water inlet pipe 2 is communicated with a water inlet hopper 20, and the inner side wall of the water inlet hopper 20 is fixedly connected with a filter screen 21 through screws; the filter screen 21 can filter impurities in chemical materials.

In this embodiment, specifically: the top of the water outlet pipe 17 is communicated with a hose 18; connecting the hose 18 to a designated outlet enables the chemical to be delivered to a designated location.

In this embodiment, specifically: the outer side wall of the pump shell 3 is welded with a support frame 19, and the bottom of the support frame 19 is fixedly connected with the box body 1 through a screw; the support frame 19 is used for supporting and fixing the pump shell 3, and does not block the chemical materials in the box body 1 from contacting with the outside air.

In this embodiment, specifically: a waterproof shell 16 is fixedly connected to the outer side wall of the water inlet pipe 2 and positioned outside the first motor 4, a first sealing ring 14 is arranged on an output shaft of the first motor 4, and one side of the first sealing ring 14 is fixedly connected with the water inlet pipe 2; after chemical materials are injected into the box body 1, the waterproof shell 16 can prevent the liquid chemical materials from generating adverse effects on the first motor 4; meanwhile, the first sealing ring 14 can prevent the chemical materials in the water inlet pipe 2 from flowing out of the gap.

In this embodiment, specifically: the output shaft of the second motor 13 is provided with a second sealing ring 22, and one side of the second sealing ring 22 is fixedly connected with the pump shell 3; the second sealing ring 22 can prevent the chemical material in the pump shell 3 from flowing out from the gap.

The first electric machine 4 is of the type: 28PG395SM 02501;

the second motor 13 is of the type: 28PG395SM 02501.

When the device is used, a switch group for controlling the starting or the closing of the first motor 4 and the second motor 13 is installed on the supporting frame 19, and the switch group is connected with an external commercial power and used for supplying power to the first motor 4 and the second motor 13; injecting liquid chemical materials into the box body 1, and starting the second motor 13 through the switch group; the second motor 13 drives the impeller 15 to rotate, so that negative pressure is generated inside the pump shell 3, and chemical materials in the box body 1 can enter the water inlet hopper 20 under the action of atmospheric pressure and enter the water inlet pipe 2 through the filter screen 21; the first motor 4 is started through the switch group, and the first motor 4 drives the turntable 5 to rotate; the rotary table 5 drives the sliding rod 7 to slide up and down and back in the baffle 8 through the connecting arm 6, and the sliding rod 7 drives the plugging block 10 to move up and down and back and forth in the through groove 11 through the sealing gasket 9 in the moving process; since the sealing gasket 9 and the block 10 have good sealing properties, the interior of the inlet conduit 2 will maintain good sealing properties when the block 10 is inserted into the through slot 11; when the block 10 is drawn out from the through groove 11, the chemical materials can smoothly enter the water inlet pipe 2, so that the function of throttling the chemical materials by the centrifugal pump is realized; after chemical material entered into pump case 3, can be thrown into outlet pipe 17 under the effect of impeller 15 in, be connected to appointed export with hose 18, can make chemical material be carried to the assigned position.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an improve chemical centrifugal pump of seal structure, includes box (1), its characterized in that: the improved water inlet box is characterized in that a water inlet pipe (2) is inserted into the box body (1), the top of the water inlet pipe (2) is communicated with a pump case (3), the outer side wall of the water inlet pipe (2) is fixedly connected with a first motor (4) through a screw, an output shaft of the first motor (4) penetrates through the water inlet pipe (2) and is welded with a rotary table (5), the outer side of the rotary table (5) is rotatably connected with a connecting arm (6), the bottom of the connecting arm (6) is rotatably connected with a sliding rod (7), the outer side wall of the sliding rod (7) is slidably connected with a baffle (8), the outer side of the baffle (8) is welded with the water inlet pipe (2), the bottom of the sliding rod (7) penetrates through the baffle (8) and is fixedly connected with a sealing gasket (9), the inner side wall of the water inlet pipe (2) is fixedly connected with a plate body (12), and a through groove (11) is formed in the plate body (12), the utility model discloses a pump casing, including logical groove (11), the inside of leading to groove (11) is inserted and is had sprue (10), the top and the sealed pad (9) fixed connection of sprue (10), the lateral wall of pump casing (3) passes through screw fixedly connected with second motor (13), the output shaft of second motor (13) runs through pump casing (3) and welds and have impeller (15), the top intercommunication of pump casing (3) has outlet pipe (17).

2. The chemical centrifugal pump with the improved sealing structure as claimed in claim 1, wherein: the bottom of inlet tube (2) intercommunication has into water fill (20), the inside wall of intaking fill (20) passes through screw fixedly connected with filter screen (21).

3. The chemical centrifugal pump with the improved sealing structure as claimed in claim 1, wherein: the top of the water outlet pipe (17) is communicated with a hose (18).

4. The chemical centrifugal pump with the improved sealing structure as claimed in claim 1, wherein: the outer side wall of the pump shell (3) is welded with a support frame (19), and the bottom of the support frame (19) is fixedly connected with the box body (1) through screws.

5. The chemical centrifugal pump with the improved sealing structure as claimed in claim 2, wherein: the outer side wall of the water inlet pipe (2) is fixedly connected with a waterproof shell (16) outside the water inlet pipe (2) and located on the first motor (4), an output shaft of the first motor (4) is provided with a first sealing ring (14), and one side of the first sealing ring (14) is fixedly connected with the water inlet pipe (2).

6. The chemical centrifugal pump with the improved sealing structure as claimed in claim 1, wherein: and an output shaft of the second motor (13) is provided with a second sealing ring (22), and one side of the second sealing ring (22) is fixedly connected with the pump shell (3).