A mortar pump with flushing function

Abstract

The present invention discloses a mortar pump with a flushing function, which belongs to the technical field of mortar pumps. A foot stand is provided at the bottom of the motor, and the motor is connected to the pump body through a connecting seat, an outlet flange is provided on the upper part of the pump body, and an inlet flange is provided on the outside of the pump body, the output end of the motor is connected to the impeller through the shaft core, and an idle seal shaft is provided on the shaft core, and a cooling water bucket is provided above the connecting seat. The mortar pump with a flushing function has a simple structure and a reasonable design. The flushing function is added by the flushing pump. When the flushing pump is running, an outward pressure can be generated in the internal sealing chamber of the shaft seal to play a flushing function, which can effectively flush out the particles entering the gap between the main rotating ring and the main fixed ring, and at the same time enhance the self-cooling function. When the flushing pump is working, the flow rate of water in the cooling bucket and the shaft seal sealing chamber increases, which can more effectively take away the heat generated between the shaft and the shaft seal, and extend the service life.

Description

Technical Field

[0001] The invention relates to a mortar pump with a flushing function, belonging to the technical field of mortar pumps. Background Art

[0002] Liquid pumps are commonly used in factories and have a wide range of applications, such as thermal power generation, metal smelting, sulfuric acid and phosphate fertilizers, and steel companies. Currently, liquid pumps are mainly divided into clean water pumps and mortar pumps. Clean water pumps are mainly used to transport clean water and solutions with very low concentrations, while mortar pumps are mainly used to transport liquids with particles and slurry liquids, such as mortar. Traditional mortar pumps use shaft seals that are prone to damage and leakage due to friction, idling, and overheating, especially when conveying slurry with particles, which shortens the service life of the shaft seal. Summary of the invention

[0003] In view of the above problems, the technical problem to be solved by the present invention is to provide a mortar pump with a flushing function.

[0004] The mortar pump with flushing function of the present invention comprises a motor, a connecting seat, a flushing water pipe, a flushing pump, a cooling water bucket, an idling sealing shaft, an outlet flange, an inlet flange, a pump body, an impeller, a shaft core, a first circulating water pipe, a second circulating water pipe and a tripod, wherein a tripod is provided at the bottom of the motor, and the motor is connected to the pump body through the connecting seat, an outlet flange is provided at the upper part of the pump body, and an inlet flange is provided outside the pump body, the output end of the motor is connected to the impeller through the shaft core, and an idling sealing shaft is provided on the shaft core, a cooling water bucket is provided above the connecting seat, and a flushing pump is provided on the upper part of the cooling water bucket, the flushing pump is connected to the idling sealing shaft through the flushing water pipe, and the first circulating water pipe and the second circulating water pipe are provided between the idling sealing shaft and the cooling water bucket;

[0005] The idle sealing shaft comprises a shaft sealing seat, a fastening screw, a first spring, a second spring, a fixing ring guide seat, a main fixing ring, a main rotating ring, a rotating ring inner sleeve, a main shaft sealing rubber ring, a secondary rotating ring, a secondary fixing ring and a secondary fixing ring gasket. A shaft sealing seat is arranged on the outside of the shaft core. The shaft sealing seat is composed of a front shaft sealing seat and a rear shaft sealing seat, and the front shaft sealing seat and the rear shaft sealing seat are connected by a fastening screw. A fixing ring guide seat is arranged on the inner side of the shaft sealing seat, and a first spring is arranged between the fixing ring guide seat and the shaft core. A main fixing ring is arranged at the front end of the shaft sealing seat, and a main rotating ring is arranged on one side of the main fixing ring, a rotating ring inner sleeve is arranged between the main rotating ring and the shaft core, a secondary fixing ring is arranged at the rear end of the shaft sealing seat, and a secondary fixing ring gasket is arranged between the secondary fixing ring and the shaft sealing seat, a secondary rotating ring is arranged on one side of the secondary fixing ring, and a main shaft sealing rubber ring and a second spring are arranged between the secondary rotating ring and the shaft core.

[0006] Preferably, the flushing pump is a vertical pump that can run idle.

[0007] Preferably, water inlets are provided on the upper and lower sides of the shaft seal seat, a cooling water interface is provided at the water inlet, and the cooling water interface is connected to the cooling water barrel through the first circulating water pipe and the second circulating water pipe.

[0008] Preferably, a sealing cavity is provided between the shaft seal seat and the shaft core, and the cooling water interface is communicated with the sealing cavity.

[0009] Compared with the prior art, the beneficial effects of the present invention are: the mortar pump with flushing function has a simple structure and a reasonable design. The flushing function is added by the flushing pump. When the flushing pump is running, it can generate an outward pressure in the internal sealing chamber of the shaft seal to play a flushing function. It can effectively flush out the particles entering the gap between the main rotating ring and the main fixed ring, and at the same time enhance the self-cooling function. When the flushing pump is working, the flow rate of water in the cooling barrel and the shaft seal sealing chamber increases, which can more effectively take away the heat generated between the shaft and the shaft seal and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present invention;

[0011] Figure 2 It is a schematic diagram of the idling sealing shaft structure of the present invention.

[0012] Figure numerals: motor 1, connecting seat 2, flushing water pipe 3, flushing pump 4, cooling water bucket 5, idling sealing shaft 6, shaft sealing seat 601, fastening screw 602, first spring 603, second spring 604, fixed ring guide seat 605, main fixed ring 606, main rotating ring 607, rotating ring inner sleeve 608, main shaft sealing rubber ring 609, auxiliary rotating ring 610, auxiliary fixed ring 611, auxiliary fixed ring gasket 612, outlet flange 7, inlet flange 8, pump body 9, impeller 10, shaft core 11, first circulating water pipe 12, second circulating water pipe 13, tripod 14. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] like Figure 1-Figure 2As shown, this specific embodiment adopts the following technical scheme: it includes a motor 1, a connecting seat 2, a flushing water pipe 3, a flushing pump 4, a cooling water bucket 5, an idling sealing shaft 6, an outlet flange 7, an inlet flange 8, a pump body 9, an impeller 10, a shaft core 11, a first circulating water pipe 12, a second circulating water pipe 13 and a tripod 14. The tripod 14 is arranged at the bottom of the motor 1, and the motor 1 is connected to the pump body 9 through the connecting seat 2. The upper part of the pump body 9 is provided with an outlet flange 7, and the outer part of the pump body 9 is provided with an inlet flange 8. The output end of the motor 1 is connected to the impeller 10 through the shaft core 11, and the idling sealing shaft 6 is arranged on the shaft core 11. A cooling water bucket 5 is arranged above the connecting seat 2, and a flushing pump 4 is arranged on the upper part of the cooling water bucket 5. The flushing pump 4 is connected to the idling sealing shaft 6 through the flushing water pipe 3, and the first circulating water pipe 12 and the second circulating water pipe 13 are arranged between the idling sealing shaft 6 and the cooling water bucket 5.

[0015] The idle seal shaft 6 comprises a shaft seal seat 601, a fastening screw 602, a first spring 603, a second spring 604, a fixed ring guide seat 605, a main fixed ring 606, a main rotating ring 607, a rotating ring inner sleeve 608, a main shaft sealing rubber ring 609, a secondary rotating ring 610, a secondary fixed ring 611 and a secondary fixed ring gasket 612. The shaft core 11 is provided with a shaft seal seat 601 on the outside. The shaft seal seat 601 is composed of a front shaft seal seat and a rear shaft seal seat, and the front shaft seal seat and the rear shaft seal seat are connected by a fastening screw 602. A fixed ring guide seat 605 is provided on the inside of the shaft seal seat 601, and the fixed ring guide seat 605 is provided on the inside of the shaft seal seat 601. A first spring 603 is arranged between the seat 605 and the shaft core 11, a main fixed ring 606 is arranged at the front end of the shaft seal seat 601, and a main rotating ring 607 is arranged on one side of the main fixed ring 606, a rotating ring inner sleeve 608 is arranged between the main rotating ring 607 and the shaft core 11, a secondary fixed ring 611 is arranged at the rear end of the shaft seal seat 601, and a secondary fixed ring gasket 612 is arranged between the secondary fixed ring 611 and the shaft seal seat 601, a secondary rotating ring 610 is arranged on one side of the secondary fixed ring 611, and a main shaft sealing rubber ring 609 and a second spring 604 are arranged between the secondary rotating ring 610 and the shaft core 11.

[0016] The flushing pump 4 is an idling vertical pump and will not be damaged due to idling due to lack of water in the cooling water bucket 5. When the flushing pump 4 is not working, the water in the cooling water bucket 5 can cool the shaft seal through the first circulating water pipe 12 and the second circulating water pipe 13.

[0017] Water inlets are provided on the upper and lower sides of the shaft seal seat 601, and a cooling water interface is provided at the water inlet, and the cooling water interface is connected to the cooling water barrel 5 through the first circulating water pipe 12 and the second circulating water pipe 13. A sealing cavity is provided between the shaft seal seat 601 and the shaft core 11, and the cooling water interface is connected to the sealing cavity.

[0018] Working principle: When working, the output shaft of the motor 1 is connected to the shaft core 11, and the fixed ring guide seat 605, the main fixed ring 606, the main rotating ring 607, the rotating ring inner sleeve 608, the main shaft sealing rubber ring 609, the auxiliary rotating ring 610, the auxiliary fixed ring 611, the auxiliary fixed ring gasket 612 and other components form a sealed cavity to reduce the wear caused by direct contact with the shaft core 11; when the mortar pump is turned on and running, the water in the cooling water bucket 5 will flow into the sealed cavity through the gap of the first spring 603 by self-circulation, cool down the components, extend the service life of each component, and no leakage will occur. When there is no conveying medium in the pump cavity, the water in the cooling water bucket 5 will flow into the sealed cavity by self-circulation, cool down the components, extend the service life of each component, and no leakage will occur. When the pump is idling and generates a lot of heat, the self-cooling device can protect the shaft seal from damage. The main fixed ring 606, the main rotating ring 607, and the rotating ring inner sleeve 608 isolate the external conveying medium from the sealing chamber. At the same time, the water in the sealing chamber will not flow into the medium to cause impact; in addition, when the flushing pump 4 is running, it can generate an outward pressure in the sealing chamber inside the shaft seal to play a flushing function, flushing out the particles entering the gap between the main fixed ring 606 and the main rotating ring 607, and the water flow rate in the cooling water bucket 5 and the idling seal shaft 6 is accelerated, which can take away the heat generated between the shaft and the shaft seal and extend the service life.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mortar pump with flushing function, characterized in that: It comprises a motor (1), a connection seat (2), a flushing water pipe (3), a flushing pump (4), a cooling water bucket (5), an idling sealing shaft (6), an outlet flange (7), an inlet flange (8), a pump body (9), an impeller (10), a shaft core (11), a first circulating water pipe (12), a second circulating water pipe (13) and a stand (14). The motor (1) is provided with a stand (14) at the bottom, and the motor (1) is connected to the pump body (9) through the connection seat (2). The pump body (9) is provided with an outlet flange (7) at the top, and an inlet flange (8) is provided outside the pump body (9). The output end of the motor (1) is connected to the impeller (10) through the shaft core (11), and an idling sealing shaft (6) is provided on the shaft core (11). A cooling water bucket (5) is arranged above the connecting seat (2), and a flushing pump (4) is arranged on the upper part of the cooling water bucket (5). The flushing pump (4) is connected to the idle sealing shaft (6) through a flushing water pipe (3). A first circulating water pipe (12) and a second circulating water pipe (13) are arranged between the idle sealing shaft (6) and the cooling water bucket (5). The idle sealing shaft (6) comprises a shaft sealing seat (601), a fastening screw (602), a first spring (603), a second spring (604), a fixed ring guide seat (605), a main fixed ring (606), a main rotating ring (607), a rotating ring inner sleeve (608), a main shaft sealing rubber ring (609), a secondary rotating ring (610), a secondary fixed ring (611) and a secondary fixed ring gasket (612), a shaft seal seat (601) is arranged outside the shaft core (11), the shaft seal seat (601) is composed of a front shaft seal seat and a rear shaft seal seat, and the front shaft seal seat and the rear shaft seal seat are connected by a fastening screw (602), a fixed ring guide seat (605) is arranged inside the shaft seal seat (601), and a first spring (603) is arranged between the fixed ring guide seat (605) and the shaft core (11), a main fixed ring (606) is arranged at the front end of the shaft seal seat (601), and a main rotating ring (607) is arranged on one side of the main fixed ring (606), and a rotating ring inner sleeve (608) is arranged between the main rotating ring (607) and the shaft core (11), and a secondary fixed ring (606) is arranged at the rear end of the shaft seal seat (601). 611), and a secondary fixed ring gasket (612) is arranged between the secondary fixed ring (611) and the shaft seal seat (601), a secondary rotating ring (610) is arranged on one side of the secondary fixed ring (611), and a main shaft sealing rubber ring (609) and a second spring (604) are arranged between the secondary rotating ring (610) and the shaft core (11), the flushing pump (4) is an idling vertical pump, the shaft seal seat (601) is provided with water inlets on the upper and lower sides, a cooling water interface is arranged at the water inlet, and the cooling water interface is connected to the cooling water bucket (5) through the first circulating water pipe (12) and the second circulating water pipe (13), a sealing cavity is arranged between the shaft seal seat (601) and the shaft core (11), and the cooling water interface is communicated with the sealing cavity.

2. A mortar pump with flushing function according to claim 1, characterized in that: The working principle of the mortar pump is as follows: when working, the output shaft of the motor (1) is connected to the shaft core (11), and the fixed ring guide seat (605), the main fixed ring (606), the main rotating ring (607), the rotating ring inner sleeve (608), the main shaft sealing rubber ring (609), the auxiliary rotating ring (610), the auxiliary fixed ring (611), and the auxiliary fixed ring gasket (612) components form a sealed cavity to reduce the wear caused by direct contact with the shaft core (11); when the mortar pump is turned on and operated, the water in the cooling water bucket (5) will flow into the sealed cavity through the gap of the first spring (603) in a self-circulating manner, thereby cooling down each component and extending the service life of each component. At the same time, it will not produce In the event of leakage, when there is no conveying medium in the pump chamber, the pump runs idle, and a large amount of heat is generated, the self-cooling device can protect the shaft seal from damage. The main fixed ring (606), the main rotating ring (607), and the inner sleeve (608) of the rotating ring isolate the external conveying medium from the sealing chamber, and at the same time, the water in the sealing chamber will not flow into the medium to cause an impact. In addition, when the flushing pump (4) is in operation, an outward pressure can be generated in the sealing chamber inside the shaft seal to play a flushing function, flushing out particles that enter the gap between the main fixed ring (606) and the main rotating ring (607), and the water flow rate in the cooling water bucket (5) and the idle sealing shaft (6) is increased, which can take away the heat generated between the shaft and the shaft seal.

Images